WO2020049704A1 - Vehicle ignition device, ignition control device, and control method of vehicle ignition device - Google Patents
Vehicle ignition device, ignition control device, and control method of vehicle ignition device Download PDFInfo
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- WO2020049704A1 WO2020049704A1 PCT/JP2018/033123 JP2018033123W WO2020049704A1 WO 2020049704 A1 WO2020049704 A1 WO 2020049704A1 JP 2018033123 W JP2018033123 W JP 2018033123W WO 2020049704 A1 WO2020049704 A1 WO 2020049704A1
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- ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
Definitions
- the present invention relates to a vehicle ignition device, an ignition control device, and a method for controlling a vehicle ignition device.
- the switching element for controlling the ignition requires more energy than in the normal state, so that the switching element may be broken.
- the primary side of the ignition device when it is determined whether spark discharge is normal in the ignition device, the primary side of the ignition device is normally connected by reading a voltage by a detection circuit, and the primary side of the ignition device is in a state of disconnection, ground fault, or short to power. Have judged.
- an object of the present invention is to provide a vehicle ignition device that can determine whether or not spark discharge is normally performed from a voltage value (current value) and an application time during a primary-side ignition operation. I do.
- the vehicle ignition device includes: A battery terminal to which an ignition voltage is supplied from a battery; A primary-side ignition coil having one end connected to the battery terminal and the other end connected to the detection terminal, One end is connected to the battery terminal, the other end is connected to the plug terminal, a primary side coil and a secondary side ignition coil constituting a transformer, A spark plug having a first electrode connected to the plug terminal, and a second electrode connected to a fixed potential; A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential; A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element; A drive unit that drives the control switching element to control on or off, A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit, The control unit includes: A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined
- the control unit includes: If it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the control switching element is turned off to stop ignition of the ignition plug.
- the control unit includes: In the detection period, when the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time, it is determined that the ignition plug is not normally ignited, On the other hand, when the detected primary voltage exceeds the threshold voltage for a period shorter than the reference time in the detection period, it is determined that the ignition plug is normally ignited. I do.
- the control unit includes: If the detected primary voltage exceeds a preset first threshold voltage when a preset first standby time has elapsed since the start of the ignition operation of the spark plug, the ignition is performed. Judging that the plug is not firing properly, On the other hand, if the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is normally ignited. .
- the control unit includes: When a preset second standby time longer than the first standby time has elapsed since the start of the ignition operation of the ignition plug, the detected primary voltage exceeds a preset second threshold voltage. If there is, it is determined that the spark plug is igniting normally, On the other hand, if the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is not normally ignited. I do.
- the control unit includes: If the detected energizing current exceeds the preset threshold current when a preset third standby time has elapsed since the start of the ignition operation of the ignition plug, the ignition plug is activated. Judge that the ignition is normal, On the other hand, if the detected energizing current does not exceed the threshold current when the third standby time has elapsed, it is determined that the ignition plug is not normally ignited.
- the control unit includes: The battery voltage of the battery is obtained, and the threshold voltage and / or the threshold current are changed based on the obtained battery voltage.
- the case where the ignition plug is not normally ignited means that when an open failure occurs on the secondary side, the gap width between the first electrode and the second electrode of the ignition plug is set in advance. If the value is larger than the set value, if foreign matter is mixed in the gap between the first electrode and the second electrode, if the battery voltage of the battery is low, or if the primary side is open. -It is characterized in that a shoot failure has occurred.
- the control switching element A collector is connected to the detection terminal, an emitter is connected to the fixed potential, and a base transistor is a bipolar transistor controlled by the driving unit.
- a display unit that is controlled by the control unit and displays predetermined information for providing to a user, The control unit causes the display unit to display a result of determining whether or not the ignition plug is normally ignited.
- the control unit is mounted on a motorcycle and controls an operation of an engine of the motorcycle.
- the control unit includes: When it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the operation of the injector that injects fuel into the combustion chamber of the engine is stopped. And
- a main switch that is connected between the positive electrode of the battery and the battery terminal and that is controlled on / off by a user; When the main switch is turned on, the control unit starts ignition control of the ignition plug.
- An ignition control device includes: A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential;
- An ignition control device applied to a vehicle ignition device comprising: A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential; A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element; A drive unit that drives the control switching element to control on or off, A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit, The control unit includes: A voltage comparison result of comparing the value of the
- the control method of the vehicle ignition device includes: A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential, and detecting a primary voltage of the detection terminal or an energizing current flowing from the detection terminal to the control switching element.
- a driving unit for driving the control switching element to turn on or off, a value of the primary voltage detected by the detecting unit and / or Based on the value of the serial conduction current, a control method of the vehicle ignition device and a control unit for controlling the control switching device by the drive unit,
- the control unit is configured to perform a voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or the detection unit detects the voltage. It is characterized in that it is determined whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the value of the energizing current with a preset threshold current.
- An ignition device includes a battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal, and the other end connected to a detection terminal, and one end connected to a detection terminal.
- An ignition plug having a second electrode (ground electrode) connected to a potential (ground potential); a control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
- a detection unit for detecting a primary voltage or a conduction current flowing from the detection terminal to the control switching element, a driving unit for driving the control switching element to control on or off, and a detection unit Based on the values of the detected primary voltage and / or electric current, and a control unit for controlling the controlled switching element by the driving unit.
- the control unit may be configured to compare a primary voltage value detected by the detection unit with a preset threshold voltage during a preset detection period, and / or to supply a current supplied by the detection unit. It is determined whether or not the spark plug is normally ignited, based on the current comparison result obtained by comparing the value of ⁇ ⁇ ⁇ with a preset threshold current.
- the ignition device of the present invention it is possible to determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation.
- FIG. 1 is a diagram illustrating an example of a configuration of the vehicle ignition device 100 according to the first embodiment.
- FIG. 2 shows the relationship between the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the current is small, the gap width is normal, and normal ignition is performed. It is a figure showing an example of a waveform.
- FIG. 3 shows the relationship between the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the energizing current is large, the gap width is normal, and normal ignition is performed. It is a figure showing an example of a waveform.
- FIG. 2 shows the relationship between the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the current is small, the gap width is normal, and normal ignition is performed. It is a figure showing an example of a waveform.
- FIG. 4 shows the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the energizing current is large, the gap width is large, and normal ignition is performed.
- FIG. 5 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is small and the ignition is poor.
- FIG. 6 is a diagram showing an example of a waveform obtained by extending the time in FIG.
- FIG. 7 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is large and the ignition is defective. .
- FIG. 1 is a diagram illustrating an example of the configuration of the vehicle ignition device 100 according to the first embodiment.
- the vehicle ignition device 100 is mounted on a motorcycle (not shown), and the control unit CNT controls the operation of the engine (internal combustion engine) E of the motorcycle.
- the vehicle ignition device 100 may be mounted on a four-wheeled vehicle (not shown), and the control unit CNT may control the operation of the engine (internal combustion engine) E of the four-wheeled vehicle.
- the vehicle ignition device 100 includes, for example, a battery terminal TB, a primary ignition coil L1, a secondary ignition coil L2, a spark plug P, an injector E, a display unit A, as shown in FIG. , A control switching element CSW, a detection unit C, a drive unit D, a main switch MSW, and a control unit CNT.
- control switching element CSW the detecting unit C, the driving unit D, and the control unit CNT constitute an ignition control unit (ignition control device) X.
- the battery terminal TB is supplied with an ignition voltage from a battery B, which is a DC power supply, as shown in FIG. 1, for example.
- the primary side ignition coil L1 has one end connected to the battery terminal TB and the other end connected to the detection terminal TC.
- one end of the secondary ignition coil L2 is connected to the battery terminal TB, and the other end is connected to the plug terminal TP.
- the secondary side ignition coil L2 and the primary side coil L1 constitute a transformer X.
- the ignition plug P has a first electrode (center electrode) P1 connected to a plug terminal TP and a second electrode (center electrode) connected to a fixed potential (ground potential). Ground electrode P2.
- the main switch MSW is connected between the positive electrode of the battery B and the battery terminal TB, for example, as shown in FIG.
- the ON / OFF of the main switch MSW is controlled by the user.
- the control unit CNT when the main switch MSW is turned on, the control unit CNT is supplied with electric power from the battery B and starts the ignition control of the ignition plug P. On the other hand, when the main switch MSW is turned off, the control unit CNT stops supplying power from the battery B and stops the control operation.
- the display unit A is controlled by the control unit CNT and displays predetermined information to be provided to the user.
- control unit CNT causes the display unit A to display a result of determining whether or not the ignition plug P is normally ignited.
- control switching element CSW has one end connected to the detection terminal TC and the other end connected to a fixed potential (ground potential).
- the control switching element CSW has, for example, an NPN type in which a collector is connected to a detection terminal TC, an emitter is connected to a fixed potential (ground potential), and a base current is controlled by a driving unit D, as shown in FIG. It is a bipolar transistor (IGBT: including an insulated gate bipolar transistor).
- the detection unit C is configured to detect a primary voltage of the detection terminal TC or a conduction current flowing from the detection terminal TC to the control switching element CSW.
- the driving unit D controls the base current supplied to the control switching element CSW, thereby driving the control switching element CSW and controlling it to be on or off.
- the control unit CNT controls the control switching element CSW by the drive unit D based on the value of the primary voltage detected by the detection unit C and / or the value of the energizing current described above.
- the control unit CNT compares the primary voltage value detected by the detection unit C with a preset threshold voltage during a preset detection period, and / or detects the voltage by the detection unit C. It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
- control unit CNT determines that the ignition plug P is not normally ignited based on, for example, the above-described voltage comparison result and / or the above-described current comparison result, the control unit CNT turns off the control switching element CSW. The ignition plug P is turned off to stop ignition.
- the vehicle ignition device 100 is configured to stop ignition when an abnormality occurs.
- the energizing current or the battery voltage may be monitored at the same time, and the above-described threshold voltage and / or threshold current value may be changed according to the energizing current or the battery voltage value. As a result, the accuracy of abnormality detection (detection of ignition failure) can be improved.
- the control unit CNT normally ignites the spark plug P. It may be determined that there is not.
- control unit CNT determines that the ignition plug P is normally ignited if the period in which the detected primary voltage exceeds the above-described threshold voltage is shorter than the reference time in the detection period. You may make it.
- the control unit CNT changes the detected primary voltage to a preset first threshold voltage (for example, , 400 V), it may be determined that the ignition plug P is not normally ignited.
- a preset first threshold voltage for example, , 400 V
- the control unit CNT determines that the ignition plug P is normally ignited. It may be.
- the control unit CNT sets the detected primary voltage to the preset primary voltage. If the voltage exceeds the second threshold voltage (for example, 0 V), it may be determined that the ignition plug P is normally ignited.
- the second threshold voltage for example, 0 V
- the control unit CNT determines that the ignition plug P is not normally ignited. It may be.
- the control unit CNT determines that the detected energizing current exceeds the preset threshold current. Alternatively, it may be determined that the ignition plug P is normally ignited.
- the control unit CNT determines that the ignition plug P is not normally ignited. It may be.
- the control unit CNT may acquire the battery voltage of the battery B and change the above-described threshold voltage and / or the above-described threshold current based on the acquired battery voltage.
- ignition failure means that, for example, when an open failure occurs on the secondary side, the first electrode P1 of the ignition plug P and the second electrode
- ignition failure means that, for example, when an open failure occurs on the secondary side, the first electrode P1 of the ignition plug P and the second electrode
- the gap width between the first electrode P2 and the second electrode P2 is larger than a predetermined value, or when foreign matter (insulator) is mixed in the gap between the first electrode P1 and the second electrode P2. is there.
- the control unit CNT is supplied with power from the battery B and starts the ignition control of the ignition plug P.
- control unit CNT causes the display unit A to display the result of determining whether or not the ignition plug P is normally ignited.
- control unit CNT determines whether or not the injector F injects fuel into the combustion chamber of the engine E. The operation is stopped.
- the vehicle ignition device 100 can determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation. It has become.
- FIG. 2 shows the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the current of the plug terminal TP when the current is small, the gap width is normal, and normal ignition is performed.
- FIG. 3 shows the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary current of the plug terminal TP when the energizing current is large, the gap width is normal, and normal ignition is performed.
- FIG. 3 is a diagram illustrating an example of a voltage waveform.
- FIG. 4 shows the relationship between the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the current flowing is large, the gap width is large, and normal ignition is performed. It is a figure showing an example of a waveform.
- FIG. 5 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is small and the ignition is defective. It is.
- FIG. 6 is a diagram showing an example of a waveform obtained by extending the time in FIG.
- FIG. 7 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is large and the ignition is defective. It is.
- time t0 is the time at which the control unit CNT turns on the control switching element CSW by the drive unit D and starts the ignition operation.
- the threshold voltage has the same value as the first threshold voltage TH1 for simplicity, but the threshold voltage may be set to a value different from the first threshold voltage TH1. .
- ignition failure means that, for example, when an open failure occurs on the secondary side, the first of the ignition plug P
- the gap width between the electrode P1 and the second electrode P2 is larger than a preset value, foreign matter (insulator) is mixed in the gap between the first electrode P1 and the second electrode P2.
- the battery voltage of the battery B is low, or a primary-side open shoot failure has occurred.
- control unit CNT controls the control switching element CSW by the driving unit D based on the value of the primary voltage detected by the detection unit C and / or the value of the energizing current.
- the control unit CNT compares a primary voltage value detected by the detection unit C with a preset threshold voltage during a preset detection period (for example, from time t0 to time t1), and And / or determine whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the conduction current detected by the detection unit C with a preset threshold current (not shown). I do.
- the control unit CNT acquires the battery voltage of the battery B, and changes the above-described threshold voltage and / or the above-described threshold current based on the acquired battery voltage.
- control unit CNT determines that the ignition plug P is not normally ignited based on, for example, the above-described voltage comparison result and / or the above-described current comparison result, the control unit CNT turns off the control switching element CSW. The ignition plug P is turned off to stop ignition of the ignition plug P.
- the vehicle ignition device 100 stops ignition when an abnormality occurs.
- the control unit CNT is supplied with electric power from the battery B, and starts the ignition control of the ignition plug P.
- control unit CNT causes the display unit A to display the result of determining whether the ignition plug P is normally ignited.
- control unit CNT determines that the ignition plug is not normally ignited based on the voltage comparison result and / or the current comparison result, the operation of the injector F that injects fuel into the combustion chamber of the engine E is performed. To stop.
- the control unit CNT determines that the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time. It is determined that the ignition plug P is not normally ignited (FIGS. 5, 6, and 7).
- the control unit CNT determines that the ignition plug P Is determined to be normally ignited (FIGS. 2, 3, and 4).
- control unit CNT detects the detected primary voltage when a preset first standby time (for example, 30 ⁇ sec) elapses (for example, time t1) after starting the ignition operation of the ignition plug P.
- a preset first standby time for example, 30 ⁇ sec
- time t1 for example, 400 V
- the control unit CNT determines that the ignition plug P is normally ignited ( 2, 3, and 4).
- the hardware configuration of the vehicle ignition device 100 can be simplified.
- control unit CNT may change the first standby time according to, for example, the value of the energizing current (or the battery voltage).
- control unit CNT starts a predetermined second standby time (for example, 80 ⁇ sec) longer than the first standby time (for example, 80 ⁇ sec) after starting the ignition operation of the ignition plug P (at time t0) (for example, At time t2), if the detected primary voltage exceeds the second threshold voltage TH2 (for example, 0 V) set in advance, it is determined that the ignition plug P is normally ignited (FIG. 2, 3 and 4).
- the control unit CNT determines that the ignition plug P is not normally ignited ( 5, 6, and 7).
- the control unit CNT may change the second standby time according to, for example, the value of the current (or the battery voltage).
- the control unit CNT changes the detected energizing current to a preset threshold current ( For example, when 0A) exceeds THX (is a positive current), it is determined that the ignition plug P is normally ignited (FIG. 2).
- the control unit CNT switches the ignition plug P It is determined that ignition has not been performed normally (FIGS. 5 and 6).
- the control unit CNT may change the third standby time according to, for example, the value of the current (or the battery voltage).
- the vehicle ignition device 100 has, as shown in FIG. 1, a battery terminal TB to which an ignition voltage is supplied from a battery B, one end connected to the battery terminal TB, and the other end connected.
- a primary ignition coil L1 connected to the detection terminal TC, a secondary ignition coil L2 having one end connected to the battery terminal TB, the other end connected to the plug terminal TP, and forming a transformer with the primary coil L1;
- An ignition plug P having a first electrode (center electrode) P1 connected to the plug terminal TP, and a second electrode (ground electrode) P2 connected to a fixed potential (ground potential);
- a control switching element CSW connected to the terminal TC and having the other end connected to the fixed potential; and a primary voltage of the detection terminal TC or a flow from the detection terminal to the control switching element CSW.
- a detecting unit C for detecting a current a driving unit D for driving a control switching element to turn on or off, and driving based on a value of a primary voltage and / or a value of a conduction current detected by the detecting unit C
- a control unit CNT that controls the control switching element CSW by the unit D.
- control unit CNT performs a voltage comparison result of comparing the value of the primary voltage detected by the detection unit C with a predetermined threshold voltage during a predetermined detection period, and / or It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
- the vehicle ignition device 100 according to the first embodiment, it is possible to determine whether or not the spark discharge is normal from the voltage value (current value) and the application time during the primary ignition operation.
- control switching element CSW is an NPN-type bipolar transistor (FIG. 1) is described, but another semiconductor element may be applied.
- control switching element CSW may be replaced with, for example, a PNP-type bipolar transistor (IGBT: including an insulated gate-type bipolar transistor), a MOSFET, or another semiconductor element so as to perform the same function.
- IGBT PNP-type bipolar transistor
- MOSFET MOSFET
- the other configurations of the vehicle ignition device according to the second embodiment are the same as those of the first embodiment.
- the ignition device has the battery terminal TB to which the ignition voltage is supplied from the battery B, one end connected to the battery terminal TB, and the other end connected to the detection terminal TC.
- the primary-side ignition coil L1 one end is connected to the battery terminal TB, the other end is connected to the plug terminal TP, and the primary-side coil L1 and the secondary-side ignition coil L2 constituting a transformer are connected to the plug terminal TP.
- An ignition plug P having a first electrode (center electrode) P1 and a second electrode (ground electrode) P2 connected to a fixed potential (ground potential); one end connected to a detection terminal TC;
- a control switching element CSW having an end connected to a fixed potential, and a detection circuit for detecting a primary voltage of the detection terminal TC or an energizing current flowing from the detection terminal to the control switching element CSW.
- a driving unit D for driving the control switching element to turn on or off by controlling the unit C; and a control switching by the driving unit D based on the value of the primary voltage and / or the value of the energizing current detected by the detection unit C.
- a control unit CNT for controlling the element CSW.
- control unit CNT performs a voltage comparison result of comparing the value of the primary voltage detected by the detection unit C with a predetermined threshold voltage during a predetermined detection period, and / or It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
- the ignition device of the present invention it is possible to determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation.
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Abstract
A control unit of a vehicle ignition device, during a predetermined detection period, determines whether a spark plug is ignited normally or not, on the basis of a voltage comparison result obtained by comparing the value of a primary voltage detected by a detector and a predetermined threshold voltage, and/or a current comparison result obtained by comparing the value of a flowing current detected by the detector and a predetermined threshold current.
Description
本発明は、車両用点火装置、点火制御装置及び、車両用点火装置の制御方法に関する。
The present invention relates to a vehicle ignition device, an ignition control device, and a method for controlling a vehicle ignition device.
例えば、二輪車のシステムにおいては、OBD2（On-board diagnostics 2）対応等により、点火装置の点火プラグが点火放電しているか判断する必要がある。
For example, in a motorcycle system, it is necessary to determine whether or not the ignition plug of the ignition device is ignited by OBD2 (On-diagnostics 2).
例えば、エンジンの回転変動から点火放電しているか判断は可能である。この場合、低回転は判断可能だが、高回転では変動が少なく判断が難しい。
For example, it is possible to determine whether ignition discharge is occurring based on engine speed fluctuations. In this case, a low rotation can be determined, but a high rotation has little fluctuation and is difficult to determine.
一方、四輪車のシステムにおいてはコストの余裕があるため、点火装置の２次側を直接検出している（例えば、特開２００９－９２０３５、特開２０１５－２００２４６参照）。
On the other hand, in a four-wheeled vehicle system, the secondary side of the ignition device is directly detected because there is a margin for cost (see, for example, JP-A-2009-92035 and JP-A-2015-200246).
ここで、点火プラグの点火放電が正常に行われない場合、点火を制御するスイッチング素子には正常時よりも大きなエネルギーがかかるので、当該スイッチング素子が壊れてしまう可能性がある。
Here, if the ignition discharge of the ignition plug is not performed normally, the switching element for controlling the ignition requires more energy than in the normal state, so that the switching element may be broken.
そして、壊れないように大きなエネルギーがかかっても大丈夫な素子を選定すると、点火装置のコストアップに繋がる。
素 子 Selecting an element that can withstand a large amount of energy so as not to break it will lead to an increase in the cost of the ignition device.
そして、既述の二輪車のシステムにおいては、点火装置において火花放電が正常かを判断する場合、検出回路で電圧を読み込むことで点火装置の１次側が正常接続、断線、地絡、天絡の状態を判断している。
In the motorcycle system described above, when it is determined whether spark discharge is normal in the ignition device, the primary side of the ignition device is normally connected by reading a voltage by a detection circuit, and the primary side of the ignition device is in a state of disconnection, ground fault, or short to power. Have judged.
このような従来技術で用いられる当該検出回路では、点火装置の２次側の状態は検出できておらず、制御上正常に動作していても、実際火花放電しているのかわからない問題がある。
(4) In the detection circuit used in such a conventional technique, the state of the secondary side of the ignition device cannot be detected, and there is a problem that even if the ignition device is operating normally, it is difficult to determine whether or not a spark discharge is actually occurring.
そこで、本発明では、１次側の点火動作時の電圧値（電流値）及び印加時間から、正常に火花放電しているかを判断することが可能な車両用点火装置を提供することを目的とする。
Therefore, an object of the present invention is to provide a vehicle ignition device that can determine whether or not spark discharge is normally performed from a voltage value (current value) and an application time during a primary-side ignition operation. I do.
本発明の一態様に係る実施形態に従った車両用点火装置は、
バッテリから点火用電圧が供給されるバッテリ端子と、
一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、
一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、
前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 The vehicle ignition device according to the embodiment according to one aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery;
A primary-side ignition coil having one end connected to the battery terminal and the other end connected to the detection terminal,
One end is connected to the battery terminal, the other end is connected to the plug terminal, a primary side coil and a secondary side ignition coil constituting a transformer,
A spark plug having a first electrode connected to the plug terminal, and a second electrode connected to a fixed potential;
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current.
バッテリから点火用電圧が供給されるバッテリ端子と、
一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、
一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、
前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 The vehicle ignition device according to the embodiment according to one aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery;
A primary-side ignition coil having one end connected to the battery terminal and the other end connected to the detection terminal,
One end is connected to the battery terminal, the other end is connected to the plug terminal, a primary side coil and a secondary side ignition coil constituting a transformer,
A spark plug having a first electrode connected to the plug terminal, and a second electrode connected to a fixed potential;
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current.
前記車両用点火装置において、
前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記制御スイッチング素子をオフさせて、前記点火プラグの点火を停止する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the control switching element is turned off to stop ignition of the ignition plug. Features.
前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記制御スイッチング素子をオフさせて、前記点火プラグの点火を停止する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the control switching element is turned off to stop ignition of the ignition plug. Features.
前記車両用点火装置において、
前記制御部は、
前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が予め設定された基準時間以上である場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が前記基準時間未満である場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
In the detection period, when the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time, it is determined that the ignition plug is not normally ignited,
On the other hand, when the detected primary voltage exceeds the threshold voltage for a period shorter than the reference time in the detection period, it is determined that the ignition plug is normally ignited. I do.
前記制御部は、
前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が予め設定された基準時間以上である場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が前記基準時間未満である場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
In the detection period, when the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time, it is determined that the ignition plug is not normally ignited,
On the other hand, when the detected primary voltage exceeds the threshold voltage for a period shorter than the reference time in the detection period, it is determined that the ignition plug is normally ignited. I do.
前記車両用点火装置において、
前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第１待機時間が経過したときに、検出した前記１次電圧が予め設定された第１閾値電圧を超えている場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が第１閾値電圧を超えていない場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If the detected primary voltage exceeds a preset first threshold voltage when a preset first standby time has elapsed since the start of the ignition operation of the spark plug, the ignition is performed. Judging that the plug is not firing properly,
On the other hand, if the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is normally ignited. .
前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第１待機時間が経過したときに、検出した前記１次電圧が予め設定された第１閾値電圧を超えている場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が第１閾値電圧を超えていない場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If the detected primary voltage exceeds a preset first threshold voltage when a preset first standby time has elapsed since the start of the ignition operation of the spark plug, the ignition is performed. Judging that the plug is not firing properly,
On the other hand, if the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is normally ignited. .
前記車両用点火装置において、
前記制御部は、
前記点火プラグの点火動作を開始してから前記第１待機時間より長い予め設定された第２待機時間が経過したときに、検出した前記１次電圧が予め設定された第２閾値電圧を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が前記第２閾値電圧を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
When a preset second standby time longer than the first standby time has elapsed since the start of the ignition operation of the ignition plug, the detected primary voltage exceeds a preset second threshold voltage. If there is, it is determined that the spark plug is igniting normally,
On the other hand, if the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is not normally ignited. I do.
前記制御部は、
前記点火プラグの点火動作を開始してから前記第１待機時間より長い予め設定された第２待機時間が経過したときに、検出した前記１次電圧が予め設定された第２閾値電圧を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が前記第２閾値電圧を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
When a preset second standby time longer than the first standby time has elapsed since the start of the ignition operation of the ignition plug, the detected primary voltage exceeds a preset second threshold voltage. If there is, it is determined that the spark plug is igniting normally,
On the other hand, if the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is not normally ignited. I do.
前記車両用点火装置において、
前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第３待機時間が経過したときに、検出した前記通電電流が予め設定された前記閾値電流を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第３待機時間が経過したときに、検出した前記通電電流が前記閾値電流を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If the detected energizing current exceeds the preset threshold current when a preset third standby time has elapsed since the start of the ignition operation of the ignition plug, the ignition plug is activated. Judge that the ignition is normal,
On the other hand, if the detected energizing current does not exceed the threshold current when the third standby time has elapsed, it is determined that the ignition plug is not normally ignited.
前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第３待機時間が経過したときに、検出した前記通電電流が予め設定された前記閾値電流を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第３待機時間が経過したときに、検出した前記通電電流が前記閾値電流を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
If the detected energizing current exceeds the preset threshold current when a preset third standby time has elapsed since the start of the ignition operation of the ignition plug, the ignition plug is activated. Judge that the ignition is normal,
On the other hand, if the detected energizing current does not exceed the threshold current when the third standby time has elapsed, it is determined that the ignition plug is not normally ignited.
前記車両用点火装置において、
前記制御部は、
前記バッテリのバッテリ電圧を取得し、取得したバッテリ電圧に基づいて、前記閾値電圧及び／又は前記閾値電流を変化させる
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
The battery voltage of the battery is obtained, and the threshold voltage and / or the threshold current are changed based on the obtained battery voltage.
前記制御部は、
前記バッテリのバッテリ電圧を取得し、取得したバッテリ電圧に基づいて、前記閾値電圧及び／又は前記閾値電流を変化させる
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
The battery voltage of the battery is obtained, and the threshold voltage and / or the threshold current are changed based on the obtained battery voltage.
前記車両用点火装置において、
前記点火プラグが正常に点火していない場合とは、２次側にオープン故障が発生している場合、前記点火プラグの前記第１の電極と前記第２の電極との間のギャップ幅が予め設定された値より大きい場合、前記第１の電極と前記第２の電極との間のギャップに異物が混入している場合、前記バッテリのバッテリ電圧が低下している場合、又は1次側オープン・シュート故障が発生している場合である
ことを特徴とする。 In the vehicle ignition device,
The case where the ignition plug is not normally ignited means that when an open failure occurs on the secondary side, the gap width between the first electrode and the second electrode of the ignition plug is set in advance. If the value is larger than the set value, if foreign matter is mixed in the gap between the first electrode and the second electrode, if the battery voltage of the battery is low, or if the primary side is open. -It is characterized in that a shoot failure has occurred.
前記点火プラグが正常に点火していない場合とは、２次側にオープン故障が発生している場合、前記点火プラグの前記第１の電極と前記第２の電極との間のギャップ幅が予め設定された値より大きい場合、前記第１の電極と前記第２の電極との間のギャップに異物が混入している場合、前記バッテリのバッテリ電圧が低下している場合、又は1次側オープン・シュート故障が発生している場合である
ことを特徴とする。 In the vehicle ignition device,
The case where the ignition plug is not normally ignited means that when an open failure occurs on the secondary side, the gap width between the first electrode and the second electrode of the ignition plug is set in advance. If the value is larger than the set value, if foreign matter is mixed in the gap between the first electrode and the second electrode, if the battery voltage of the battery is low, or if the primary side is open. -It is characterized in that a shoot failure has occurred.
前記車両用点火装置において、
前記制御スイッチング素子は、
コレクタが前記検出用端子に接続され、エミッタが前記固定電位に接続され、ベース電流が前記駆動部により制御されるバイポーラトランジスタである
ことを特徴とする。 In the vehicle ignition device,
The control switching element,
A collector is connected to the detection terminal, an emitter is connected to the fixed potential, and a base transistor is a bipolar transistor controlled by the driving unit.
前記制御スイッチング素子は、
コレクタが前記検出用端子に接続され、エミッタが前記固定電位に接続され、ベース電流が前記駆動部により制御されるバイポーラトランジスタである
ことを特徴とする。 In the vehicle ignition device,
The control switching element,
A collector is connected to the detection terminal, an emitter is connected to the fixed potential, and a base transistor is a bipolar transistor controlled by the driving unit.
前記車両用点火装置において、
前記制御部により制御され、ユーザに提供するための所定の情報を表示する表示部をさらに備え、
前記制御部は、前記点火プラグが正常に点火されているか否かを判断した結果を、前記表示部に表示させる
ことを特徴とする。 In the vehicle ignition device,
A display unit that is controlled by the control unit and displays predetermined information for providing to a user,
The control unit causes the display unit to display a result of determining whether or not the ignition plug is normally ignited.
前記制御部により制御され、ユーザに提供するための所定の情報を表示する表示部をさらに備え、
前記制御部は、前記点火プラグが正常に点火されているか否かを判断した結果を、前記表示部に表示させる
ことを特徴とする。 In the vehicle ignition device,
A display unit that is controlled by the control unit and displays predetermined information for providing to a user,
The control unit causes the display unit to display a result of determining whether or not the ignition plug is normally ignited.
前記車両用点火装置において、
前記車両用点火装置は、
二輪車に積載され、前記制御部は、前記二輪車のエンジンの動作を制御する
ことを特徴とする。 In the vehicle ignition device,
The vehicle ignition device,
The control unit is mounted on a motorcycle and controls an operation of an engine of the motorcycle.
前記車両用点火装置は、
二輪車に積載され、前記制御部は、前記二輪車のエンジンの動作を制御する
ことを特徴とする。 In the vehicle ignition device,
The vehicle ignition device,
The control unit is mounted on a motorcycle and controls an operation of an engine of the motorcycle.
前記車両用点火装置において、
前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記エンジンの燃焼室内に燃料を噴射するインジェクタの動作を停止させる
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
When it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the operation of the injector that injects fuel into the combustion chamber of the engine is stopped. And
前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記エンジンの燃焼室内に燃料を噴射するインジェクタの動作を停止させる
ことを特徴とする。 In the vehicle ignition device,
The control unit includes:
When it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the operation of the injector that injects fuel into the combustion chamber of the engine is stopped. And
前記車両用点火装置において、
前記バッテリの正極と前記バッテリ端子との間に接続され、ユーザによりオン／オフが制御されるメインスイッチをさらに備え、
前記メインスイッチがオンされると、前記制御部は、前記点火プラグの点火制御を開始する
ことを特徴とする。 In the vehicle ignition device,
A main switch that is connected between the positive electrode of the battery and the battery terminal and that is controlled on / off by a user;
When the main switch is turned on, the control unit starts ignition control of the ignition plug.
前記バッテリの正極と前記バッテリ端子との間に接続され、ユーザによりオン／オフが制御されるメインスイッチをさらに備え、
前記メインスイッチがオンされると、前記制御部は、前記点火プラグの点火制御を開始する
ことを特徴とする。 In the vehicle ignition device,
A main switch that is connected between the positive electrode of the battery and the battery terminal and that is controlled on / off by a user;
When the main switch is turned on, the control unit starts ignition control of the ignition plug.
本発明の一態様に係る実施形態に従った点火制御装置は、
バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、を備えた車両用点火装置に適用される点火制御装置であって、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 An ignition control device according to an embodiment according to an aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; An ignition control device applied to a vehicle ignition device comprising:
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current.
バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、を備えた車両用点火装置に適用される点火制御装置であって、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 An ignition control device according to an embodiment according to an aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; An ignition control device applied to a vehicle ignition device comprising:
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current.
本発明の一態様に係る実施形態に従った車両用点火装置の制御方法は、
バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備えた車両用点火装置の制御方法であって、
前記制御部は、予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 The control method of the vehicle ignition device according to the embodiment according to an aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential, and detecting a primary voltage of the detection terminal or an energizing current flowing from the detection terminal to the control switching element. A driving unit for driving the control switching element to turn on or off, a value of the primary voltage detected by the detecting unit and / or Based on the value of the serial conduction current, a control method of the vehicle ignition device and a control unit for controlling the control switching device by the drive unit,
The control unit is configured to perform a voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or the detection unit detects the voltage. It is characterized in that it is determined whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the value of the energizing current with a preset threshold current.
バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備えた車両用点火装置の制御方法であって、
前記制御部は、予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする。 The control method of the vehicle ignition device according to the embodiment according to an aspect of the present invention includes:
A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential, and detecting a primary voltage of the detection terminal or an energizing current flowing from the detection terminal to the control switching element. A driving unit for driving the control switching element to turn on or off, a value of the primary voltage detected by the detecting unit and / or Based on the value of the serial conduction current, a control method of the vehicle ignition device and a control unit for controlling the control switching device by the drive unit,
The control unit is configured to perform a voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or the detection unit detects the voltage. It is characterized in that it is determined whether or not the ignition plug is normally ignited based on a current comparison result obtained by comparing the value of the energizing current with a preset threshold current.
本発明の一態様に係る点火装置は、バッテリから点火用電圧が供給されるバッテリ端子と、一端がバッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端がバッテリ端子Ｔに接続され、他端がプラグ端子に接続され、一次側コイルＬ１とトランスを構成する二次側イグニッションコイルと、プラグ端子に接続された第１の電極（中心電極）、及び、固定電位（接地電位）に接続された第２の電極（接地電極）を有する点火プラグと、一端が検出用端子に接続され、他端が固定電位に接続された制御スイッチング素子と、検出用端子の１次電圧又は検出用端子から制御スイッチング素子に流れる通電電流を検出する検出部と、制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、検出部が検出した１次電圧の値及び／又は通電電流の値に基づいて、駆動部により制御スイッチング素子を制御する制御部と、を備える。
An ignition device according to one embodiment of the present invention includes a battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal, and the other end connected to a detection terminal, and one end connected to a detection terminal. A secondary ignition coil that is connected to the battery terminal T, the other end of which is connected to the plug terminal, forms a primary coil L1 and a transformer, a first electrode (center electrode) connected to the plug terminal, and fixed An ignition plug having a second electrode (ground electrode) connected to a potential (ground potential); a control switching element having one end connected to the detection terminal and the other end connected to the fixed potential; A detection unit for detecting a primary voltage or a conduction current flowing from the detection terminal to the control switching element, a driving unit for driving the control switching element to control on or off, and a detection unit Based on the values of the detected primary voltage and / or electric current, and a control unit for controlling the controlled switching element by the driving unit.
そして、制御部は、予め設定された検出期間において、検出部が検出した１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、検出部が検出した通電電流の値と予め設定された閾値電流とを比較した電流比較結果に基づいて、点火プラグが正常に点火されているか否かを判断する。
The control unit may be configured to compare a primary voltage value detected by the detection unit with a preset threshold voltage during a preset detection period, and / or to supply a current supplied by the detection unit. It is determined whether or not the spark plug is normally ignited, based on the current comparison result obtained by comparing the value of プ ラ グ with a preset threshold current.
すなわち、本発明の点火装置によれば、１次側の点火動作時の電圧値（電流値）及び印加時間から、正常に火花放電しているかを判断することができる。
That is, according to the ignition device of the present invention, it is possible to determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation.
以下、本発明に係る実施形態について図面に基づいて説明する。
Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
図１は、実施例１に係る車両用点火装置１００の構成の一例を示す図である。
FIG. 1 is a diagram illustrating an example of the configuration of the vehicle ignition device 100 according to the first embodiment.
本実施例１に係る車両用点火装置１００は、二輪車（図示せず）に積載され、制御部ＣＮＴは、当該二輪車のエンジン（内燃機関）Ｅの動作を制御するようになっている。
The vehicle ignition device 100 according to the first embodiment is mounted on a motorcycle (not shown), and the control unit CNT controls the operation of the engine (internal combustion engine) E of the motorcycle.
なお、この車両用点火装置１００は、四輪車（図示せず）に積載され、制御部ＣＮＴは、当該四輪車のエンジン（内燃機関）Ｅの動作を制御するようにしてもよい。
The vehicle ignition device 100 may be mounted on a four-wheeled vehicle (not shown), and the control unit CNT may control the operation of the engine (internal combustion engine) E of the four-wheeled vehicle.
この車両用点火装置１００は、例えば、図１に示すように、バッテリ端子ＴＢと、一次側イグニッションコイルＬ１と、二次側イグニッションコイルＬ２と、点火プラグＰと、インジェクタＥと、表示部Ａと、制御スイッチング素子ＣＳＷと、検出部Ｃと、駆動部Ｄと、メインスイッチＭＳＷと、制御部ＣＮＴと、を備える。
The vehicle ignition device 100 includes, for example, a battery terminal TB, a primary ignition coil L1, a secondary ignition coil L2, a spark plug P, an injector E, a display unit A, as shown in FIG. , A control switching element CSW, a detection unit C, a drive unit D, a main switch MSW, and a control unit CNT.
なお、例えば、図１に示すように、制御スイッチング素子ＣＳＷ、検出部Ｃ、駆動部Ｄ、及び、制御部ＣＮＴは、点火制御部（点火制御装置）Ｘを構成する。
Note that, for example, as shown in FIG. 1, the control switching element CSW, the detecting unit C, the driving unit D, and the control unit CNT constitute an ignition control unit (ignition control device) X.
そして、バッテリ端子ＴＢは、例えば、図１に示すように、直流電源であるバッテリＢから点火用電圧が供給されるようになっている。
The battery terminal TB is supplied with an ignition voltage from a battery B, which is a DC power supply, as shown in FIG. 1, for example.
また、一次側イグニッションコイルＬ１は、例えば、図１に示すように、一端がバッテリ端子ＴＢに接続され、他端が検出用端子ＴＣに接続されている。
Further, as shown in FIG. 1, for example, the primary side ignition coil L1 has one end connected to the battery terminal TB and the other end connected to the detection terminal TC.
また、二次側イグニッションコイルＬ２は、例えば、図１に示すように、一端がバッテリ端子ＴＢに接続され、他端がプラグ端子ＴＰに接続されている。
Further, as shown in FIG. 1, for example, one end of the secondary ignition coil L2 is connected to the battery terminal TB, and the other end is connected to the plug terminal TP.
この二次側イグニッションコイルＬ２は、一次側コイルＬ１とトランスＸを構成するようになっている。
The secondary side ignition coil L2 and the primary side coil L1 constitute a transformer X.
また、点火プラグＰは、例えば、図１に示すように、プラグ端子ＴＰに接続された第１の電極（中心電極）Ｐ１、及び、固定電位（接地電位）に接続された第２の電極（接地電極）Ｐ２を有する。
Further, as shown in FIG. 1, for example, the ignition plug P has a first electrode (center electrode) P1 connected to a plug terminal TP and a second electrode (center electrode) connected to a fixed potential (ground potential). Ground electrode P2.
また、メインスイッチＭＳＷは、例えば、図１に示すように、バッテリＢの正極とバッテリ端子ＴＢとの間に接続されている。このメインスイッチＭＳＷは、ユーザによりオン／オフが制御されるようになっている。
The main switch MSW is connected between the positive electrode of the battery B and the battery terminal TB, for example, as shown in FIG. The ON / OFF of the main switch MSW is controlled by the user.
例えば、後述のように、このメインスイッチＭＳＷがオンされると、制御部ＣＮＴは、バッテリＢから電力が供給されて、点火プラグＰの点火制御を開始するようになっている。一方、このメインスイッチＭＳＷがオフされると、制御部ＣＮＴは、バッテリＢからの電力の供給が停止されて、制御動作を停止するようになっている。
For example, as described later, when the main switch MSW is turned on, the control unit CNT is supplied with electric power from the battery B and starts the ignition control of the ignition plug P. On the other hand, when the main switch MSW is turned off, the control unit CNT stops supplying power from the battery B and stops the control operation.
また、表示部Ａは、制御部ＣＮＴにより制御され、ユーザに提供するための所定の情報を表示するようになっている。
The display unit A is controlled by the control unit CNT and displays predetermined information to be provided to the user.
なお、後述のように、制御部ＣＮＴは、点火プラグＰが正常に点火されているか否かを判断した結果を、当該表示部Ａに表示させるようになっている。
As described later, the control unit CNT causes the display unit A to display a result of determining whether or not the ignition plug P is normally ignited.
また、制御スイッチング素子ＣＳＷは、例えば、図１に示すように、一端が検出用端子ＴＣに接続され、他端が固定電位（接地電位）に接続されている。
{Circle around (1)} As shown in FIG. 1, for example, the control switching element CSW has one end connected to the detection terminal TC and the other end connected to a fixed potential (ground potential).
この制御スイッチング素子ＣＳＷは、例えば、図１に示すように、コレクタが検出用端子ＴＣに接続され、エミッタが固定電位（接地電位）に接続され、ベース電流が駆動部Ｄにより制御されるＮＰＮ型バイポーラトランジスタ（ＩＧＢＴ：絶縁ゲート型バイポーラトランジスタを含む）である。
The control switching element CSW has, for example, an NPN type in which a collector is connected to a detection terminal TC, an emitter is connected to a fixed potential (ground potential), and a base current is controlled by a driving unit D, as shown in FIG. It is a bipolar transistor (IGBT: including an insulated gate bipolar transistor).
また、検出部Ｃは、例えば、図１に示すように、検出用端子ＴＣの１次電圧、又は検出用端子ＴＣから制御スイッチング素子ＣＳＷに流れる通電電流を、検出するようになっている。
(1) Further, as shown in FIG. 1, for example, the detection unit C is configured to detect a primary voltage of the detection terminal TC or a conduction current flowing from the detection terminal TC to the control switching element CSW.
また、駆動部Ｄは、制御スイッチング素子ＣＳＷに供給するベース電流を制御することにより、制御スイッチング素子ＣＳＷを駆動してオン又はオフに制御するようになっている。
{Circle around (4)} The driving unit D controls the base current supplied to the control switching element CSW, thereby driving the control switching element CSW and controlling it to be on or off.
また、制御部ＣＮＴは、検出部Ｃが検出した１次電圧の値、及び／又は既述の通電電流の値に基づいて、駆動部Ｄにより制御スイッチング素子ＣＳＷを制御するようになっている。
(4) The control unit CNT controls the control switching element CSW by the drive unit D based on the value of the primary voltage detected by the detection unit C and / or the value of the energizing current described above.
この制御部ＣＮＴは、予め設定された検出期間において、検出部Ｃが検出した１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、検出部Ｃが検出した通電電流の値と予め設定された閾値電流とを比較した電流比較結果に基づいて、点火プラグＰが正常に点火されているか否かを判断するようになっている。
The control unit CNT compares the primary voltage value detected by the detection unit C with a preset threshold voltage during a preset detection period, and / or detects the voltage by the detection unit C. It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
そして、制御部ＣＮＴは、例えば、既述の電圧比較結果及び／又は既述の電流比較結果に基づいて、点火プラグＰが正常に点火していないと判断した場合には、制御スイッチング素子ＣＳＷをオフさせて、点火プラグＰの点火を停止するようになっている。
When the control unit CNT determines that the ignition plug P is not normally ignited based on, for example, the above-described voltage comparison result and / or the above-described current comparison result, the control unit CNT turns off the control switching element CSW. The ignition plug P is turned off to stop ignition.
このように、車両用点火装置１００は、異常時に点火を止めるようになっている。
Thus, the vehicle ignition device 100 is configured to stop ignition when an abnormality occurs.
なお、後述のように、通電電流又はバッテリ電圧も同時に監視して、通電電流又はバッテリ電圧の値に応じて、既述の閾値電圧及び／又は閾値電流の値を変更するようにしてもよい。これにより、異常検出（点火不良の検出）の精度を向上することができる。
As will be described later, the energizing current or the battery voltage may be monitored at the same time, and the above-described threshold voltage and / or threshold current value may be changed according to the energizing current or the battery voltage value. As a result, the accuracy of abnormality detection (detection of ignition failure) can be improved.
ここで、例えば、制御部ＣＮＴは、検出期間において、検出した１次電圧が閾値電圧を超えている期間が予め設定された基準時間以上である場合には、点火プラグＰが正常に点火していないと判断するようにしてもよい。
Here, for example, when the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time in the detection period, the control unit CNT normally ignites the spark plug P. It may be determined that there is not.
一方、制御部ＣＮＴは、当該検出期間において、検出した１次電圧が既述の閾値電圧を超えている期間が基準時間未満である場合には、点火プラグＰが正常に点火していると判断するようにしてもよい。
On the other hand, the control unit CNT determines that the ignition plug P is normally ignited if the period in which the detected primary voltage exceeds the above-described threshold voltage is shorter than the reference time in the detection period. You may make it.
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始してから予め設定された第１待機時間が経過したときに、検出した１次電圧が予め設定された第１閾値電圧（例えば、４００Ｖ）を超えている場合には、点火プラグＰが正常に点火していないと判断するようにしてもよい。
Further, for example, when the preset first standby time has elapsed since the start of the ignition operation of the ignition plug P, the control unit CNT changes the detected primary voltage to a preset first threshold voltage (for example, , 400 V), it may be determined that the ignition plug P is not normally ignited.
一方、制御部ＣＮＴは、当該第１待機時間が経過したときに、検出した１次電圧が第１閾値電圧を超えていない場合には、点火プラグＰが正常に点火していると判断するようにしてもよい。
On the other hand, when the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, the control unit CNT determines that the ignition plug P is normally ignited. It may be.
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始してから第１待機時間より長い予め設定された第２待機時間が経過したときに、検出した１次電圧が予め設定された第２閾値電圧（例えば、０Ｖ）を超えている場合には、点火プラグＰが正常に点火していると判断するようにしてもよい。
Further, for example, when the preset second standby time longer than the first standby time has elapsed since the start of the ignition operation of the ignition plug P, the control unit CNT sets the detected primary voltage to the preset primary voltage. If the voltage exceeds the second threshold voltage (for example, 0 V), it may be determined that the ignition plug P is normally ignited.
一方、制御部ＣＮＴは、当該第１待機時間が経過したときに、検出した１次電圧が第２閾値電圧を超えていない場合には、点火プラグＰが正常に点火していないと判断するようにしてもよい。
On the other hand, when the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, the control unit CNT determines that the ignition plug P is not normally ignited. It may be.
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始してから予め設定された第３待機時間が経過したときに、検出した通電電流が予め設定された閾値電流を超えている場合には、点火プラグＰが正常に点火していると判断するようにしてもよい。
Further, for example, when the preset standby time has elapsed since the start of the ignition operation of the ignition plug P, the control unit CNT determines that the detected energizing current exceeds the preset threshold current. Alternatively, it may be determined that the ignition plug P is normally ignited.
一方、制御部ＣＮＴは、当該第３待機時間が経過したときに、検出した通電電流が既述の閾値電流を超えていない場合には、点火プラグＰが正常に点火していないと判断するようにしてもよい。
On the other hand, when the detected energizing current does not exceed the above-described threshold current when the third standby time has elapsed, the control unit CNT determines that the ignition plug P is not normally ignited. It may be.
また、制御部ＣＮＴは、バッテリＢのバッテリ電圧を取得し、取得したバッテリ電圧に基づいて、既述の閾値電圧及び／又は既述の閾値電流を変化させるようにしてもよい。
The control unit CNT may acquire the battery voltage of the battery B and change the above-described threshold voltage and / or the above-described threshold current based on the acquired battery voltage.
なお、点火プラグＰが正常に点火していない（点火不良である）場合とは、例えば、２次側にオープン故障が発生している場合、点火プラグＰの第１の電極Ｐ１と第２の電極Ｐ２との間のギャップ幅が予め設定された値より大きい場合、又は、第１の電極Ｐ１と第２の電極Ｐ２との間のギャップに異物（絶縁物）が混入している場合等である。
The case where the ignition plug P is not normally ignited (ignition failure) means that, for example, when an open failure occurs on the secondary side, the first electrode P1 of the ignition plug P and the second electrode For example, when the gap width between the first electrode P2 and the second electrode P2 is larger than a predetermined value, or when foreign matter (insulator) is mixed in the gap between the first electrode P1 and the second electrode P2. is there.
なお、既述のように、メインスイッチＭＳＷがオンされると、この制御部ＣＮＴは、バッテリＢから電力が供給されて、点火プラグＰの点火制御を開始するようになっている。
As described above, when the main switch MSW is turned on, the control unit CNT is supplied with power from the battery B and starts the ignition control of the ignition plug P.
また、既述のように、制御部ＣＮＴは、点火プラグＰが正常に点火されているか否かを判断した結果を、当該表示部Ａに表示させるようになっている。
As described above, the control unit CNT causes the display unit A to display the result of determining whether or not the ignition plug P is normally ignited.
なお、制御部ＣＮＴは、電圧比較結果及び／又は電流比較結果に基づいて、点火プラグＰが正常に点火していないと判断した場合には、エンジンＥの燃焼室内に燃料を噴射するインジェクタＦの動作を停止させるようになっている。
When the control unit CNT determines that the ignition plug P is not normally ignited based on the voltage comparison result and / or the current comparison result, the control unit CNT determines whether or not the injector F injects fuel into the combustion chamber of the engine E. The operation is stopped.
以上のように、実施例１に係る車両用点火装置１００は、１次側の点火動作時の電圧値（電流値）及び印加時間から、正常に火花放電しているかを判断することができるようになっている。
As described above, the vehicle ignition device 100 according to the first embodiment can determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation. It has become.
次に、以上のような構成を有する車両用点火装置１００の制御方法の一例について説明する。ここで、図２は、通電電流が小さく、ギャップ幅が正常であり、正常点火している場合における、検出用端子ＴＣの１次電圧、検出用端子ＴＣに流れる通電電流、プラグ端子ＴＰの２次電圧の波形の一例を示す図である。また、図３は、通電電流が大きく、ギャップ幅が正常であり、正常点火している場合における、検出用端子ＴＣの１次電圧、検出用端子ＴＣに流れる通電電流、プラグ端子ＴＰの２次電圧の波形の一例を示す図である。また、図４は、通電電流が大きく、ギャップ幅が大きく、正常点火している場合における、検出用端子ＴＣの１次電圧、検出用端子ＴＣに流れる通電電流、プラグ端子ＴＰの２次電圧の波形の一例を示す図である。また、図５は、通電電流が小さく、点火不良である場合における、検出用端子ＴＣの１次電圧、検出用端子ＴＣに流れる通電電流、プラグ端子ＴＰの２次電圧の波形の一例を示す図である。また、図６は、図５の時間を長くした波形の一例を示す図である。また、図７は、通電電流が大きく、点火不良である場合における、検出用端子ＴＣの１次電圧、検出用端子ＴＣに流れる通電電流、プラグ端子ＴＰの２次電圧の波形の一例を示す図である。
Next, an example of a control method of the vehicle ignition device 100 having the above configuration will be described. Here, FIG. 2 shows the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the current of the plug terminal TP when the current is small, the gap width is normal, and normal ignition is performed. It is a figure showing an example of a waveform of the next voltage. FIG. 3 shows the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary current of the plug terminal TP when the energizing current is large, the gap width is normal, and normal ignition is performed. FIG. 3 is a diagram illustrating an example of a voltage waveform. FIG. 4 shows the relationship between the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the current flowing is large, the gap width is large, and normal ignition is performed. It is a figure showing an example of a waveform. FIG. 5 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is small and the ignition is defective. It is. FIG. 6 is a diagram showing an example of a waveform obtained by extending the time in FIG. FIG. 7 is a diagram showing an example of the waveforms of the primary voltage of the detection terminal TC, the conduction current flowing through the detection terminal TC, and the secondary voltage of the plug terminal TP when the conduction current is large and the ignition is defective. It is.
なお、図２ないし図７において、時刻ｔ０は、制御部ＣＮＴが駆動部Ｄにより制御スイッチング素子ＣＳＷをオンして点火動作を開始した時刻である。
2 to 7, time t0 is the time at which the control unit CNT turns on the control switching element CSW by the drive unit D and starts the ignition operation.
また、図２ないし図７において、閾値電圧は、簡単のため、第１閾値電圧ＴＨ１と同じ値になっているが、当該閾値電圧は、第１閾値電圧ＴＨ１と異なる値に設定してもよい。
In FIGS. 2 to 7, the threshold voltage has the same value as the first threshold voltage TH1 for simplicity, but the threshold voltage may be set to a value different from the first threshold voltage TH1. .
なお、既述のように、点火プラグＰが正常に点火していない（点火不良である）場合とは、例えば、２次側にオープン故障が発生している場合、点火プラグＰの第１の電極Ｐ１と第２の電極Ｐ２との間のギャップ幅が予め設定された値より大きい場合、第１の電極Ｐ１と第２の電極Ｐ２との間のギャップに異物（絶縁物）が混入している場合、バッテリＢのバッテリ電圧が低下している場合、又は、1次側オープン・シュート故障が発生している場合等である。
As described above, the case where the ignition plug P is not normally ignited (ignition failure) means that, for example, when an open failure occurs on the secondary side, the first of the ignition plug P When the gap width between the electrode P1 and the second electrode P2 is larger than a preset value, foreign matter (insulator) is mixed in the gap between the first electrode P1 and the second electrode P2. The battery voltage of the battery B is low, or a primary-side open shoot failure has occurred.
既述のように、制御部ＣＮＴは、検出部Ｃが検出した１次電圧の値、及び／又は通電電流の値に基づいて、駆動部Ｄにより制御スイッチング素子ＣＳＷを制御する。
As described above, the control unit CNT controls the control switching element CSW by the driving unit D based on the value of the primary voltage detected by the detection unit C and / or the value of the energizing current.
この制御部ＣＮＴは、予め設定された検出期間（例えば、時刻ｔ０～時刻ｔ１）において、検出部Ｃが検出した１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、検出部Ｃが検出した通電電流の値と予め設定された閾値電流（図示せず）とを比較した電流比較結果に基づいて、点火プラグＰが正常に点火されているか否かを判断する。
The control unit CNT compares a primary voltage value detected by the detection unit C with a preset threshold voltage during a preset detection period (for example, from time t0 to time t1), and And / or determine whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the conduction current detected by the detection unit C with a preset threshold current (not shown). I do.
なお、制御部ＣＮＴは、バッテリＢのバッテリ電圧を取得し、取得したバッテリ電圧に基づいて、既述の閾値電圧及び／又は既述の閾値電流を変化させる。
The control unit CNT acquires the battery voltage of the battery B, and changes the above-described threshold voltage and / or the above-described threshold current based on the acquired battery voltage.
そして、制御部ＣＮＴは、例えば、既述の電圧比較結果及び／又は既述の電流比較結果に基づいて、点火プラグＰが正常に点火していないと判断した場合には、制御スイッチング素子ＣＳＷをオフさせて、点火プラグＰの点火を停止する。
When the control unit CNT determines that the ignition plug P is not normally ignited based on, for example, the above-described voltage comparison result and / or the above-described current comparison result, the control unit CNT turns off the control switching element CSW. The ignition plug P is turned off to stop ignition of the ignition plug P.
このように、車両用点火装置１００は、異常時に点火を止める。
Thus, the vehicle ignition device 100 stops ignition when an abnormality occurs.
なお、既述のように、メインスイッチＭＳＷがオンされると、この制御部ＣＮＴは、バッテリＢから電力が供給されて、点火プラグＰの点火制御を開始する。
As described above, when the main switch MSW is turned on, the control unit CNT is supplied with electric power from the battery B, and starts the ignition control of the ignition plug P.
また、既述のように、制御部ＣＮＴは、点火プラグＰが正常に点火されているか否かを判断した結果を、当該表示部Ａに表示させる。
{Circle around (1)} As described above, the control unit CNT causes the display unit A to display the result of determining whether the ignition plug P is normally ignited.
なお、制御部ＣＮＴは、電圧比較結果及び／又は電流比較結果に基づいて、点火プラグが正常に点火していないと判断した場合には、エンジンＥの燃焼室内に燃料を噴射するインジェクタＦの動作を停止させる。
When the control unit CNT determines that the ignition plug is not normally ignited based on the voltage comparison result and / or the current comparison result, the operation of the injector F that injects fuel into the combustion chamber of the engine E is performed. To stop.
ここで、例えば、制御部ＣＮＴは、該検出期間（例えば、時刻ｔ０～時刻ｔ１）において、検出した１次電圧が閾値電圧を超えている期間が予め設定された基準時間以上である場合には、点火プラグＰが正常に点火していないと判断する（図５、図６、図７）。
Here, for example, in the detection period (for example, from time t0 to time t1), the control unit CNT determines that the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time. It is determined that the ignition plug P is not normally ignited (FIGS. 5, 6, and 7).
一方、制御部ＣＮＴは、当該検出期間（例えば、時刻ｔ０～時刻ｔ１）において、検出した１次電圧が既述の閾値電圧を超えている期間が基準時間未満である場合には、点火プラグＰが正常に点火していると判断する（図２、図３、図４）。
On the other hand, during the detection period (for example, from time t0 to time t1), the control unit CNT determines that the ignition plug P Is determined to be normally ignited (FIGS. 2, 3, and 4).
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始してから予め設定された第１待機時間（例えば、３０μｓｅｃ）が経過したとき（例えば、時刻ｔ１）に、検出した１次電圧が予め設定された第１閾値電圧（例えば、４００Ｖ）ＴＨ１を超えている場合には、点火プラグＰが正常に点火していないと判断する（図５、図６、図７）。
Further, for example, the control unit CNT detects the detected primary voltage when a preset first standby time (for example, 30 μsec) elapses (for example, time t1) after starting the ignition operation of the ignition plug P. Exceeds a first threshold voltage TH1 (e.g., 400 V) set in advance, it is determined that the ignition plug P is not normally ignited (FIGS. 5, 6, and 7).
一方、制御部ＣＮＴは、当該第１待機時間が経過したときに、検出した１次電圧が第１閾値電圧を超えていない場合には、点火プラグＰが正常に点火していると判断する（図２、図３、図４）。
On the other hand, if the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, the control unit CNT determines that the ignition plug P is normally ignited ( 2, 3, and 4).
この場合、継続的な時間による判定でなく、電圧（“Ｈｉｇｈ”レベル/“Ｌｏｗ”レベル）で判定可能なので、車両用点火装置１００のハードウェアの構成の容易化を図ることができる。
In this case, since the determination can be made based on the voltage (“High” level / “Low” level) instead of the determination based on continuous time, the hardware configuration of the vehicle ignition device 100 can be simplified.
なお、制御部ＣＮＴは、当該第１待機時間を、例えば、通電電流（若しくはバッテリ電圧）の値に応じて変更するようにしてもよい。
Note that the control unit CNT may change the first standby time according to, for example, the value of the energizing current (or the battery voltage).
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始（時刻ｔ０）してから第１待機時間より長い予め設定された第２待機時間（例えば、８０μｓｅｃ）が経過したとき（例えば、時刻ｔ２）に、検出した１次電圧が予め設定された第２閾値電圧（例えば、０Ｖ）ＴＨ２を超えている場合には、点火プラグＰが正常に点火していると判断する（図２、図３、図４）。
Further, for example, the control unit CNT starts a predetermined second standby time (for example, 80 μsec) longer than the first standby time (for example, 80 μsec) after starting the ignition operation of the ignition plug P (at time t0) (for example, At time t2), if the detected primary voltage exceeds the second threshold voltage TH2 (for example, 0 V) set in advance, it is determined that the ignition plug P is normally ignited (FIG. 2, 3 and 4).
一方、制御部ＣＮＴは、当該第１待機時間が経過したときに、検出した１次電圧が第２閾値電圧を超えていない場合には、点火プラグＰが正常に点火していないと判断する（図５、図６、図７）。
On the other hand, if the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, the control unit CNT determines that the ignition plug P is not normally ignited ( 5, 6, and 7).
この場合、検出した１次電圧が負であれば、点火プラグＰが正常に点火していないと判断する。点火不良時には、マイナス方向に電流が流れるので、このように検出可能である。
(4) In this case, if the detected primary voltage is negative, it is determined that the ignition plug P is not normally ignited. At the time of poor ignition, a current flows in the negative direction, so that it is possible to detect in this way.
なお、制御部ＣＮＴは、当該第２待機時間を、例えば、通電電流（若しくはバッテリ電圧）の値に応じて変更するようにしてもよい。
The control unit CNT may change the second standby time according to, for example, the value of the current (or the battery voltage).
また、例えば、制御部ＣＮＴは、点火プラグＰの点火動作を開始してから予め設定された第３待機時間（時刻ｔ３）が経過したときに、検出した通電電流が予め設定された閾値電流（例えば、０Ａ）ＴＨＸを超えている（正電流である）場合には、点火プラグＰが正常に点火していると判断する（図２）。
Further, for example, when a preset third standby time (time t3) has elapsed since the start of the ignition operation of the ignition plug P, the control unit CNT changes the detected energizing current to a preset threshold current ( For example, when 0A) exceeds THX (is a positive current), it is determined that the ignition plug P is normally ignited (FIG. 2).
一方、制御部ＣＮＴは、当該第３待機時間（時刻ｔ３）が経過したときに、検出した通電電流が既述の閾値電流を超えていない（負電流である）場合には、点火プラグＰが正常に点火していないと判断する（図５、図６）。
On the other hand, when the detected energizing current does not exceed the above-described threshold current (negative current) when the third standby time (time t3) has elapsed, the control unit CNT switches the ignition plug P It is determined that ignition has not been performed normally (FIGS. 5 and 6).
このように、点火後、通電電流を確認することで、点火不良時には、マイナス方向に電流が流れるので、検出可能である。
Thus, by confirming the energizing current after ignition, current can flow in the minus direction when ignition is defective, so that detection is possible.
なお、制御部ＣＮＴは、当該第３待機時間を、例えば、通電電流（若しくはバッテリ電圧）の値に応じて変更するようにしてもよい。
The control unit CNT may change the third standby time according to, for example, the value of the current (or the battery voltage).
ここで、既述のように、車両用点火装置１００は、図１に示すように、バッテリＢから点火用電圧が供給されるバッテリ端子ＴＢと、一端がバッテリ端子ＴＢに接続され、他端が検出用端子ＴＣに接続された一次側イグニッションコイルＬ１と、一端がバッテリ端子ＴＢに接続され、他端がプラグ端子ＴＰに接続され、一次側コイルＬ１とトランスを構成する二次側イグニッションコイルＬ２と、プラグ端子ＴＰに接続された第１の電極（中心電極）Ｐ１、及び、固定電位（接地電位）に接続された第２の電極（接地電極）Ｐ２を有する点火プラグＰと、一端が検出用端子ＴＣに接続され、他端が固定電位に接続された制御スイッチング素子ＣＳＷと、検出用端子ＴＣの１次電圧又は検出用端子から制御スイッチング素子ＣＳＷに流れる通電電流を検出する検出部Ｃと、制御スイッチング素子を駆動してオン又はオフに制御する駆動部Ｄと、検出部Ｃが検出した１次電圧の値及び／又は通電電流の値に基づいて、駆動部Ｄにより制御スイッチング素子ＣＳＷを制御する制御部ＣＮＴと、を備える。
Here, as described above, the vehicle ignition device 100 has, as shown in FIG. 1, a battery terminal TB to which an ignition voltage is supplied from a battery B, one end connected to the battery terminal TB, and the other end connected. A primary ignition coil L1 connected to the detection terminal TC, a secondary ignition coil L2 having one end connected to the battery terminal TB, the other end connected to the plug terminal TP, and forming a transformer with the primary coil L1; An ignition plug P having a first electrode (center electrode) P1 connected to the plug terminal TP, and a second electrode (ground electrode) P2 connected to a fixed potential (ground potential); A control switching element CSW connected to the terminal TC and having the other end connected to the fixed potential; and a primary voltage of the detection terminal TC or a flow from the detection terminal to the control switching element CSW. A detecting unit C for detecting a current, a driving unit D for driving a control switching element to turn on or off, and driving based on a value of a primary voltage and / or a value of a conduction current detected by the detecting unit C And a control unit CNT that controls the control switching element CSW by the unit D.
そして、制御部ＣＮＴは、予め設定された検出期間において、検出部Ｃが検出した１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、検出部Ｃが検出した通電電流の値と予め設定された閾値電流とを比較した電流比較結果に基づいて、点火プラグＰが正常に点火されているか否かを判断する。
Then, the control unit CNT performs a voltage comparison result of comparing the value of the primary voltage detected by the detection unit C with a predetermined threshold voltage during a predetermined detection period, and / or It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
すなわち、実施例１に係る車両用点火装置１００によれば、１次側の点火動作時の電圧値（電流値）及び印加時間から、正常に火花放電しているかを判断することができる。
In other words, according to the vehicle ignition device 100 according to the first embodiment, it is possible to determine whether or not the spark discharge is normal from the voltage value (current value) and the application time during the primary ignition operation.
既述の実施例１では、制御スイッチング素子ＣＳＷが、ＮＰＮ型バイポーラトランジスタである例（図１）について説明したが、他の半導体素子を適用するようにしてもよい。
In the first embodiment described above, the example in which the control switching element CSW is an NPN-type bipolar transistor (FIG. 1) is described, but another semiconductor element may be applied.
すなわち、この制御スイッチング素子ＣＳＷは、同様の機能を実施できるように、例えば、ＰＮＰ型バイポーラトランジスタ（IGBT：絶縁ゲート型バイポーラトランジスタを含む）、ＭＯＳＦＥＴや他の半導体素子で代替するようにしてもよい。
That is, the control switching element CSW may be replaced with, for example, a PNP-type bipolar transistor (IGBT: including an insulated gate-type bipolar transistor), a MOSFET, or another semiconductor element so as to perform the same function. .
なお、この実施例２におけるその他の車両用点火装置の構成は、実施例１と同様である。
The other configurations of the vehicle ignition device according to the second embodiment are the same as those of the first embodiment.
以上のように、本発明の一態様に係る点火装置は、バッテリＢから点火用電圧が供給されるバッテリ端子ＴＢと、一端がバッテリ端子ＴＢに接続され、他端が検出用端子ＴＣに接続された一次側イグニッションコイルＬ１と、一端がバッテリ端子ＴＢに接続され、他端がプラグ端子ＴＰに接続され、一次側コイルＬ１とトランスを構成する二次側イグニッションコイルＬ２と、プラグ端子ＴＰに接続された第１の電極（中心電極）Ｐ１、及び、固定電位（接地電位）に接続された第２の電極（接地電極）Ｐ２を有する点火プラグＰと、一端が検出用端子ＴＣに接続され、他端が固定電位に接続された制御スイッチング素子ＣＳＷと、検出用端子ＴＣの１次電圧又は検出用端子から制御スイッチング素子ＣＳＷに流れる通電電流を検出する検出部Ｃと、制御スイッチング素子を駆動してオン又はオフに制御する駆動部Ｄと、検出部Ｃが検出した１次電圧の値及び／又は通電電流の値に基づいて、駆動部Ｄにより制御スイッチング素子ＣＳＷを制御する制御部ＣＮＴと、を備える。
As described above, the ignition device according to one embodiment of the present invention has the battery terminal TB to which the ignition voltage is supplied from the battery B, one end connected to the battery terminal TB, and the other end connected to the detection terminal TC. The primary-side ignition coil L1, one end is connected to the battery terminal TB, the other end is connected to the plug terminal TP, and the primary-side coil L1 and the secondary-side ignition coil L2 constituting a transformer are connected to the plug terminal TP. An ignition plug P having a first electrode (center electrode) P1 and a second electrode (ground electrode) P2 connected to a fixed potential (ground potential); one end connected to a detection terminal TC; A control switching element CSW having an end connected to a fixed potential, and a detection circuit for detecting a primary voltage of the detection terminal TC or an energizing current flowing from the detection terminal to the control switching element CSW. A driving unit D for driving the control switching element to turn on or off by controlling the unit C; and a control switching by the driving unit D based on the value of the primary voltage and / or the value of the energizing current detected by the detection unit C. And a control unit CNT for controlling the element CSW.
そして、制御部ＣＮＴは、予め設定された検出期間において、検出部Ｃが検出した１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、検出部Ｃが検出した通電電流の値と予め設定された閾値電流とを比較した電流比較結果に基づいて、点火プラグＰが正常に点火されているか否かを判断する。
Then, the control unit CNT performs a voltage comparison result of comparing the value of the primary voltage detected by the detection unit C with a predetermined threshold voltage during a predetermined detection period, and / or It is determined whether or not the ignition plug P is normally ignited based on a current comparison result obtained by comparing the value of the supplied current with a preset threshold current.
すなわち、本発明の点火装置によれば、１次側の点火動作時の電圧値（電流値）及び印加時間から、正常に火花放電しているかを判断することができる。
That is, according to the ignition device of the present invention, it is possible to determine whether or not spark discharge is normally performed from the voltage value (current value) and the application time during the primary-side ignition operation.
本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれると同様に、特許請求の範囲に記載された発明とその均等の範囲に含まれるものである。
Although some embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. These embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and equivalents thereof.
１００ 車両用点火装置
ＴＢ バッテリ端子
Ｌ１ 一次側イグニッションコイル
Ｌ２ 二次側イグニッションコイル
Ｐ 点火プラグ
Ａ 表示部
ＣＳＷ 制御スイッチング素子
Ｃ 検出部
Ｄ 駆動部
ＭＳＷ メインスイッチ
ＣＮＴ 制御部
Ｅ エンジン
Ｆ インジェクタ
ＴＰ プラグ端子
Ｐ１ 第１の電極（中心電極）
Ｐ２ 第２の電極（接地電極）
Ｘ トランス
Ｂ バッテリ追記Reference Signs List 100 vehicle ignition device TB battery terminal L1 primary side ignition coil L2 secondary side ignition coil P spark plug A display unit CSW control switching element C detection unit D drive unit MSW main switch CNT control unit
E Engine F Injector TP Plug terminal P1 First electrode (center electrode)
P2 Second electrode (ground electrode)
X Transformer B Battery Addition
ＴＢ バッテリ端子
Ｌ１ 一次側イグニッションコイル
Ｌ２ 二次側イグニッションコイル
Ｐ 点火プラグ
Ａ 表示部
ＣＳＷ 制御スイッチング素子
Ｃ 検出部
Ｄ 駆動部
ＭＳＷ メインスイッチ
ＣＮＴ 制御部
Ｅ エンジン
Ｆ インジェクタ
ＴＰ プラグ端子
Ｐ１ 第１の電極（中心電極）
Ｐ２ 第２の電極（接地電極）
Ｘ トランス
Ｂ バッテリ追記
E Engine F Injector TP Plug terminal P1 First electrode (center electrode)
P2 Second electrode (ground electrode)
X Transformer B Battery Addition
Claims (15)
- バッテリから点火用電圧が供給されるバッテリ端子と、
一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、
一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、
前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする車両用点火装置。 A battery terminal to which an ignition voltage is supplied from a battery;
A primary-side ignition coil having one end connected to the battery terminal and the other end connected to the detection terminal,
One end is connected to the battery terminal, the other end is connected to the plug terminal, a primary side coil and a secondary side ignition coil constituting a transformer,
A spark plug having a first electrode connected to the plug terminal, and a second electrode connected to a fixed potential;
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether or not the spark plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current. - 前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記制御スイッチング素子をオフさせて、前記点火プラグの点火を停止する
ことを特徴とする請求項１に記載の車両用点火装置。 The control unit includes:
If it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the control switching element is turned off to stop ignition of the ignition plug. The vehicle ignition device according to claim 1, wherein - 前記制御部は、
前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が予め設定された基準時間以上である場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記検出期間において、検出した前記１次電圧が前記閾値電圧を超えている期間が前記基準時間未満である場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする請求項２に記載の車両用点火装置。 The control unit includes:
In the detection period, when the period in which the detected primary voltage exceeds the threshold voltage is equal to or longer than a preset reference time, it is determined that the ignition plug is not normally ignited,
On the other hand, when the detected primary voltage exceeds the threshold voltage for a period shorter than the reference time in the detection period, it is determined that the ignition plug is normally ignited. The vehicle ignition device according to claim 2. - 前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第１待機時間が経過したときに、検出した前記１次電圧が予め設定された第１閾値電圧を超えている場合には、前記点火プラグが正常に点火していないと判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が第１閾値電圧を超えていない場合には、前記点火プラグが正常に点火していると判断する
ことを特徴とする請求項２に記載の車両用点火装置。 The control unit includes:
If the detected primary voltage exceeds a preset first threshold voltage when a preset first standby time has elapsed since the start of the ignition operation of the spark plug, the ignition is performed. Judging that the plug is not firing properly,
On the other hand, if the detected primary voltage does not exceed the first threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is normally ignited. The vehicle ignition device according to claim 2. - 前記制御部は、
前記点火プラグの点火動作を開始してから前記第１待機時間より長い予め設定された第２待機時間が経過したときに、検出した前記１次電圧が予め設定された第２閾値電圧を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第１待機時間が経過したときに、検出した前記１次電圧が前記第２閾値電圧を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする請求項２に記載の車両用点火装置。 The control unit includes:
When a preset second standby time longer than the first standby time has elapsed since the start of the ignition operation of the ignition plug, the detected primary voltage exceeds a preset second threshold voltage. If there is, it is determined that the spark plug is igniting normally,
On the other hand, if the detected primary voltage does not exceed the second threshold voltage when the first standby time has elapsed, it is determined that the ignition plug is not normally ignited. The vehicle ignition device according to claim 2. - 前記制御部は、
前記点火プラグの点火動作を開始してから予め設定された第３待機時間が経過したときに、検出した前記通電電流が予め設定された前記閾値電流を超えている場合には、前記点火プラグが正常に点火していると判断し、
一方、前記第３待機時間が経過したときに、検出した前記通電電流が前記閾値電流を超えていない場合には、前記点火プラグが正常に点火していないと判断する
ことを特徴とする請求項２に記載の車両用点火装置。 The control unit includes:
If the detected energizing current exceeds the preset threshold current when a preset third standby time has elapsed since the start of the ignition operation of the ignition plug, the ignition plug is activated. Judge that the ignition is normal,
On the other hand, when the detected current does not exceed the threshold current when the third standby time has elapsed, it is determined that the ignition plug is not normally ignited. 3. The vehicle ignition device according to 2. - 前記制御部は、
前記バッテリのバッテリ電圧を取得し、取得したバッテリ電圧に基づいて、前記閾値電圧及び／又は前記閾値電流を変化させる
ことを特徴とする請求項２に記載の車両用点火装置。 The control unit includes:
The vehicle ignition device according to claim 2, wherein the battery voltage of the battery is obtained, and the threshold voltage and / or the threshold current is changed based on the obtained battery voltage. - 前記点火プラグが正常に点火していない場合とは、２次側にオープン故障が発生している場合、前記点火プラグの前記第１の電極と前記第２の電極との間のギャップ幅が予め設定された値より大きい場合、前記第１の電極と前記第２の電極との間のギャップに異物が混入している場合、前記バッテリのバッテリ電圧が低下している場合、又は、1次側オープン・シュート故障が発生している場合である
ことを特徴とする請求項２に記載の車両用点火装置。 The case where the ignition plug is not normally ignited means that when an open failure occurs on the secondary side, the gap width between the first electrode and the second electrode of the ignition plug is set in advance. If the value is larger than the set value, if foreign matter is mixed in the gap between the first electrode and the second electrode, if the battery voltage of the battery is low, or The ignition device for a vehicle according to claim 2, wherein an open chute failure has occurred. - 前記制御スイッチング素子は、
コレクタが前記検出用端子に接続され、エミッタが前記固定電位に接続され、ベース電流が前記駆動部により制御されるバイポーラトランジスタである
ことを特徴とする請求項２に記載の車両用点火装置。 The control switching element,
The vehicle ignition device according to claim 2, wherein a collector is connected to the detection terminal, an emitter is connected to the fixed potential, and a base current is a bipolar transistor controlled by the driver. - 前記制御部により制御され、ユーザに提供するための所定の情報を表示する表示部をさらに備え、
前記制御部は、前記点火プラグが正常に点火されているか否かを判断した結果を、前記表示部に表示させる
ことを特徴とする請求項２に記載の車両用点火装置。 A display unit that is controlled by the control unit and displays predetermined information for providing to a user,
3. The vehicle ignition device according to claim 2, wherein the control unit causes the display unit to display a result of determining whether the ignition plug is normally ignited. 4. - 前記車両用点火装置は、
二輪車に積載され、前記制御部は、前記二輪車のエンジンの動作を制御する
ことを特徴とする請求項２に記載の車両用点火装置。 The vehicle ignition device,
The vehicle ignition device according to claim 2, wherein the ignition device is mounted on a motorcycle, and the control unit controls an operation of an engine of the motorcycle. - 前記制御部は、
前記電圧比較結果及び／又は電流比較結果に基づいて、前記点火プラグが正常に点火していないと判断した場合には、前記エンジンの燃焼室内に燃料を噴射するインジェクタの動作を停止させる
ことを特徴とする請求項１１に記載の車両用点火装置。 The control unit includes:
When it is determined based on the voltage comparison result and / or the current comparison result that the ignition plug is not normally ignited, the operation of the injector that injects fuel into the combustion chamber of the engine is stopped. The vehicle ignition device according to claim 11, wherein - 前記バッテリの正極と前記バッテリ端子との間に接続され、ユーザによりオン／オフが制御されるメインスイッチをさらに備え、
前記メインスイッチがオンされると、前記制御部は、前記点火プラグの点火制御を開始する
ことを特徴とする請求項２に記載の車両用点火装置。 A main switch that is connected between the positive electrode of the battery and the battery terminal and that is controlled on / off by a user;
The ignition device for a vehicle according to claim 2, wherein when the main switch is turned on, the control unit starts ignition control of the ignition plug. - バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、を備えた車両用点火装置に適用される点火制御装置であって、
一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、
前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、
前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、
前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備え、
前記制御部は、
予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする点火制御装置。 A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; An ignition control device applied to a vehicle ignition device comprising:
A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential;
A detection unit that detects a primary current of the detection terminal or a conduction current flowing from the detection terminal to the control switching element;
A drive unit that drives the control switching element to control on or off,
A control unit that controls the control switching element by the driving unit based on the value of the primary voltage and / or the value of the conduction current detected by the detection unit,
The control unit includes:
A voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or a value of the energizing current detected by the detection unit And determining whether the ignition plug is normally ignited based on a current comparison result obtained by comparing the ignition plug with a preset threshold current. - バッテリから点火用電圧が供給されるバッテリ端子と、一端が前記バッテリ端子に接続され、他端が検出用端子に接続された一次側イグニッションコイルと、一端が前記バッテリ端子に接続され、他端がプラグ端子に接続され、一次側コイルとトランスを構成する二次側イグニッションコイルと、前記プラグ端子に接続された第１の電極、及び、固定電位に接続された第２の電極を有する点火プラグと、一端が前記検出用端子に接続され、他端が前記固定電位に接続された制御スイッチング素子と、前記検出用端子の１次電圧又は前記検出用端子から前記制御スイッチング素子に流れる通電電流を検出する検出部と、前記制御スイッチング素子を駆動してオン又はオフに制御する駆動部と、前記検出部が検出した前記１次電圧の値及び／又は前記通電電流の値に基づいて、前記駆動部により前記制御スイッチング素子を制御する制御部と、を備えた車両用点火装置の制御方法であって、
前記制御部は、予め設定された検出期間において、前記検出部が検出した前記１次電圧の値と予め設定された閾値電圧とを比較した電圧比較結果、及び／又は、前記検出部が検出した前記通電電流の値と予め設定された閾値電流とを比較した電流比較結果とに基づいて、前記点火プラグが正常に点火されているか否かを判断する
ことを特徴とする車両用点火装置の制御方法。 A battery terminal to which an ignition voltage is supplied from a battery, a primary ignition coil having one end connected to the battery terminal and the other end connected to a detection terminal, one end connected to the battery terminal, and the other end connected A secondary ignition coil connected to a plug terminal and forming a primary coil and a transformer, a first electrode connected to the plug terminal, and an ignition plug having a second electrode connected to a fixed potential; A control switching element having one end connected to the detection terminal and the other end connected to the fixed potential, and detecting a primary voltage of the detection terminal or an energizing current flowing from the detection terminal to the control switching element. A driving unit for driving the control switching element to turn on or off, a value of the primary voltage detected by the detecting unit and / or Based on the value of the serial conduction current, a control method of the vehicle ignition device and a control unit for controlling the control switching device by the drive unit,
The control unit is configured to perform a voltage comparison result of comparing the value of the primary voltage detected by the detection unit with a predetermined threshold voltage during a predetermined detection period, and / or the detection unit detects the voltage. Determining whether or not the ignition plug is normally ignited, based on a current comparison result obtained by comparing the value of the energizing current with a preset threshold current. Method.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/033123 WO2020049704A1 (en) | 2018-09-07 | 2018-09-07 | Vehicle ignition device, ignition control device, and control method of vehicle ignition device |
| JP2020540960A JP6984028B2 (en) | 2018-09-07 | 2018-09-07 | Vehicle ignition device, ignition control device, and control method for vehicle ignition device |
| EP18932617.6A EP3848571A4 (en) | 2018-09-07 | 2018-09-07 | Vehicle ignition device, ignition control device, and control method of vehicle ignition device |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/JP2018/033123 WO2020049704A1 (en) | 2018-09-07 | 2018-09-07 | Vehicle ignition device, ignition control device, and control method of vehicle ignition device |
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| WO2020049704A1 true WO2020049704A1 (en) | 2020-03-12 |
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| PCT/JP2018/033123 WO2020049704A1 (en) | 2018-09-07 | 2018-09-07 | Vehicle ignition device, ignition control device, and control method of vehicle ignition device |
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| EP (1) | EP3848571A4 (en) |
| JP (1) | JP6984028B2 (en) |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02241987A (en) * | 1989-03-13 | 1990-09-26 | Aisan Ind Co Ltd | Ignition device of internal combustion engine |
| JPH02126077U (en) * | 1989-03-27 | 1990-10-17 | ||
| JPH09100772A (en) * | 1995-10-04 | 1997-04-15 | Denso Corp | Misfire detection device of internal combustion engine |
| JP2007162619A (en) * | 2005-12-15 | 2007-06-28 | Toyota Motor Corp | Ignition control device of internal combustion engine |
| JP2009092035A (en) | 2007-10-11 | 2009-04-30 | Mitsubishi Electric Corp | Internal-combustion-engine ignition diagnosis device and internal-combustion-engine control device |
| JP2015020024A (en) | 2013-07-23 | 2015-02-02 | 京楽産業．株式会社 | Game machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5283527A (en) * | 1991-06-28 | 1994-02-01 | Ford Motor Company | Methods and apparatus for detecting short circuited secondary coil winding via monitoring primary coil winding |
| JP2003511612A (en) * | 1999-10-06 | 2003-03-25 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Ignition apparatus and method for internal combustion engine |
| JP2005042643A (en) * | 2003-07-24 | 2005-02-17 | Kokusan Denki Co Ltd | Ignitor for internal combustion engines |
| JP6696334B2 (en) * | 2016-07-11 | 2020-05-20 | 株式会社デンソー | Ignition device |
-
2018
- 2018-09-07 WO PCT/JP2018/033123 patent/WO2020049704A1/en unknown
- 2018-09-07 EP EP18932617.6A patent/EP3848571A4/en active Pending
- 2018-09-07 JP JP2020540960A patent/JP6984028B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02241987A (en) * | 1989-03-13 | 1990-09-26 | Aisan Ind Co Ltd | Ignition device of internal combustion engine |
| JPH02126077U (en) * | 1989-03-27 | 1990-10-17 | ||
| JPH09100772A (en) * | 1995-10-04 | 1997-04-15 | Denso Corp | Misfire detection device of internal combustion engine |
| JP2007162619A (en) * | 2005-12-15 | 2007-06-28 | Toyota Motor Corp | Ignition control device of internal combustion engine |
| JP2009092035A (en) | 2007-10-11 | 2009-04-30 | Mitsubishi Electric Corp | Internal-combustion-engine ignition diagnosis device and internal-combustion-engine control device |
| JP2015020024A (en) | 2013-07-23 | 2015-02-02 | 京楽産業．株式会社 | Game machine |
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| Publication number | Publication date |
|---|---|
| EP3848571A1 (en) | 2021-07-14 |
| JP6984028B2 (en) | 2021-12-17 |
| JPWO2020049704A1 (en) | 2021-08-12 |
| EP3848571A4 (en) | 2021-09-22 |
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