CN102705127A - Control equipment for starting device - Google Patents
Control equipment for starting device Download PDFInfo
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- CN102705127A CN102705127A CN201110353726XA CN201110353726A CN102705127A CN 102705127 A CN102705127 A CN 102705127A CN 201110353726X A CN201110353726X A CN 201110353726XA CN 201110353726 A CN201110353726 A CN 201110353726A CN 102705127 A CN102705127 A CN 102705127A
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- Prior art keywords
- unit
- starting arrangement
- change
- battery
- surge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/10—Safety devices
- F02N11/108—Safety devices for diagnosis of the starter or its components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/02—Battery voltage drop at start, e.g. drops causing ECU reset
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Direct Current Feeding And Distribution (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Control equipment for a starting device is provided. The control equipment is used in the starting device which is used for controlling an engine installed on a vehicle. The vehicle is provided with a surge reducing unit. The surge reducing unit is provided with a variable resistor and arranged on an electrical path connecting the starting device and a battery. The control equipment comprises a change processing unit, an obtaining unit and a diagnosis unit. When the battery is used for supplying power to the starting device, the change processing unit is used for executing change treatments to change a resistance value of the surge reducing unit from the high resistance state into the low resistance state. When change treatments are executed, the obtaining unit is used for obtaining parameter values relevant to changes of the resistance value of the surge reducing unit. The diagnosis unit is used for diagnosing whether abnormal situations occur in the surge reducing unit based on the parameter values.
Description
Technical field
The present invention relates to be used for the control apparatus of starting arrangement; This starting arrangement is applied to have the traffic tool that surge reduces the unit, and wherein surge minimizing unit is arranged on the power path that connects starting arrangement and battery, and allows its resistance value variable; And especially; The present invention relates to such control apparatus, this control apparatus from battery in starting arrangement supply electric power, carry out the resistance value that surge is reduced the unit is changed into low resistance state from high resistance state processing.
Background technique
For example Japan Patent is openly announced in 2009-185760 number disclosed; Known such control apparatus is carried out when starting arrangement starts and is used for the switch process that inrush current reduces the unit; So that reduce the inrush current that in starting arrangement, flows through with the starting of starting arrangement, wherein inrush current minimizing unit is made up of being connected in parallel of resistor and switch.Particularly, when the power supply that begins to starting arrangement, supply electric power to starting arrangement, so reduce the inrush current that in starting arrangement, flows through via resistance.Then, so that the mode of battery and starting arrangement short circuit is connected switch, thereby make the electricity supply from the battery to the starting arrangement can be sufficient.This can prevent that cell voltage from significantly descending along with the starting of starting arrangement.
But, because certain factor reduces in the unit and can generation adhere to unusual (adhesive abnormality) at inrush current.When the generation adhesion is unusual in inrush current minimizing unit, can't switch on and off switch.If can't reduce based on inrush current and carry out suitable measurement unusually in the unit, then can cause ensuing inconvenience.For example, if above " the connection fault " that causes switch unusually (that is, can't cut-off switch) then can't reduce inrush current when the starting of starting arrangement.If below cause " open failure " (that is, can't connect switch) of switch unusually, then when the starting of starting arrangement, supply electric power via resistor continuously to starting arrangement, so resistor can or even be destroyed by thermal destruction from battery.Thereby starting arrangement can't start.
Summary of the invention
Made the present invention in order to solve above-mentioned problem, and property target as an example, a kind of unusual existence or the non-existent control apparatus that is used for starting arrangement that can suitably diagnose inrush current to reduce the unit is provided.
Hereinafter, use description to the device, its operation and the effect that overcome the above problems.
According to an illustrative aspects of the present disclosure; A kind of control apparatus that is used to control the starting arrangement that the engine that is installed on the traffic tool is started is provided; These traffic tool are provided with has variable-resistance surge minimizing unit; This surge reduces unit and is arranged on the power path that connects starting arrangement and battery, and control apparatus comprises: change processing unit, from battery when starting arrangement is supplied electric power; This changes processing unit and carries out the change processing, changes into low resistance state with the resistance value that surge is reduced the unit from high resistance state; Acquiring unit, when the change processing was performed, this acquiring unit obtained the relevant parameter value of change that reduces the resistance value of unit with surge; And diagnosis unit, whether it is unusual based on taking place in the parameter value diagnosis inrush current minimizing unit.
If in inrush current minimizing unit, take place to adhere to unusually, then change processing and can't change the resistance value that inrush current reduces the unit, so reducing the resistance value of unit, inrush current do not have to change.Consider this point, whether the present invention can come suitably to diagnose inrush current to reduce in the unit and take place unusually change handling when being performed based on reducing the relevant parameter value of change of the resistance value of unit with surge.
Parameter value can be the change amount of the curtage one of at least in the power path between battery, starting arrangement and battery and the starting arrangement.
The change amount of curtage is used as parameter value, can suitably diagnoses inrush current to reduce in the unit and whether take place unusually.
Reduce the degeneration whether unusual degree of accuracy takes place in the unit for fear of the diagnosis inrush current, preferably the change with battery current is used as parameter value.If the temperature change of battery or battery time to time change, then the internal resistance of battery changes.When above change processing was performed, the change rate of cell voltage changed.This can make based on the change amount of cell voltage to diagnose whether unusual degree of accuracy degeneration takes place in the inrush current minimizing unit.
The inrush current unit can comprise being connected in parallel of resistor and switch, and switches on and off switch to allow resistance value variable.Be connected in parallel and be connected in series to switch element.Can switch on and off switch element to allow power path open circuit and closed.
The traffic tool can be provided with automatic start-stop control unit, and it controls starting arrangement as follows: if satisfy predetermined stop condition, then stop engine automatically, and subsequently, if satisfy predetermined restarting condition, then automatic restarting engine.
Automatically the start-stop control unit is carried out so-called " free time stops control "; It controls starting arrangement as follows: if satisfy predetermined stop condition, then stop engine automatically, and subsequently; If satisfy predetermined restarting condition, then automatic restarting engine.Compare with not carrying out the traffic tool that the free time stops to control, use starting arrangement continually, so can become main owing to inrush current reduces the inconvenience that unusual generation causes in the unit.So, stopping control owing to can carry out the free time, the present invention has the substantial advantage that comprises above diagnosis unit.
Control apparatus also can comprise exception processing unit, if diagnosis unit diagnosis inrush current reduces takes place in the unit unusually, and then this exception processing unit is carried out the processing with this result notification driver.
Exception processing unit can reduce such situation: reduce at inrush current and take place in the unit to use starting arrangement continuously in unusual.
Description of drawings
In the accompanying drawings:
Fig. 1 illustrates the block diagram of system layout of vehicle-mounted automotive engine system that is used for the control apparatus of starting arrangement according to being provided with of example embodiment of the present invention;
Fig. 2 is the figure that illustrates according to the change of the battery current when the engine of example embodiment;
Fig. 3 A is the figure that the drive condition of the ICR relay when breaking off ICR (inrush current minimizing) relay (reducing the unit corresponding to inrush current) according to example embodiment is shown;
Fig. 3 B is the figure that illustrates according to the drive condition of the ICR relay when connecting the ICR relay of example embodiment;
Fig. 4 is the figure that illustrates according to the summary of the abnormity diagnosis scheme of the ICR relay of example embodiment;
Fig. 5 is the flow chart that illustrates according to the abnormity diagnosis processed steps of the ICR relay of example embodiment;
Fig. 6 is the figure that illustrates according to the transformation of the battery current when the engine of example embodiment;
Fig. 7 is the block diagram that the configuration of the microcomputer that is included in ECU shown in Figure 1 (corresponding to the control apparatus that is used for starting arrangement according to example embodiment) is shown;
Fig. 8 is the block diagram that the functional configuration that is included in the microcomputer among the ECU shown in Figure 1 is shown.
Embodiment
Hereinafter, with reference to accompanying drawing, will describe according to example embodiment of the present invention now and be applied to the control apparatus of vehicle-mounted automotive engine system.
Fig. 1 illustrates the configuration according to the vehicle-mounted automotive engine system of present embodiment.
As shown in Figure 1, vehicle-mounted automotive engine system is provided with the starting arrangement that the engine 42 that is installed on the traffic tool is started.Starting arrangement 10 comprises small gear (pinion) 12, is used to promote the electromagnetic drive type actuator 14 of small gear 12 and is used for the motor 16 of driving pinion 12 rotatably.The promotion driving operations of small gear 12 is respectively executable with the rotation driving operations.Particularly, by as the battery 18 of power supply drive motor 16 rotatably.ICR relay 20 (corresponding to reducing the unit according to the inrush current of present embodiment) and switch (are called as hereinafter that " SL (solenoid, solenoid) 2 switches 22) is arranged between motor 16 and the battery 18.SL2 switch 22 is in the energising of motor 16 and go to switch between the energising.Especially, the ICR relay 20 that is connected in series is arranged on the power path that is connected battery 18 and motor 16 with SL2 switch 22.SL2 switch 22 is connected to the SL2 that SL2 switch 22 is switched on and off and drives relay 24.
In the present embodiment, with the normally closed type as short-circuit relay 20b, its respectively the coil through short-circuit relay 20b energising and go energising to switch on and off.If it is unusual that certain factor can cause that short-circuit relay 20b can't connect, then electric current is fed to motor 16 from battery 18 via resistor 20a continuously when starting arrangement 10 startings.Therefore, resistor 20a can be destroyed by heat, so starting arrangement 10 can't start.Because this as short-circuit relay 20b, makes short-circuit relay 20b can except the starting of starting arrangement 10, keep state wherein as much as possible on the normally closed type.Therefore, this can guarantee from battery 18 to motor 16 supply path, thereby reduces the situation that starting arrangement 10 can't drive.
In addition, SL2 switch 22 is configured to switched on and off by SL2 driving relay 24.This configuration can be switched on and off SL2 switch 22 by the instruction from the electronic control unit (be called as " ECU 26 " hereinafter, it is corresponding to the control apparatus that is used for starting drive according to present embodiment) of following description.Because very large electric current flows through in SL2 switch 22 when motor 16 operations, so switch on and off SL2 switch 22 needed electrorheologicals big (for example, some amperes [A]).But, owing to only can supply little electric current (for example, hundreds of milliamperes [mA]) as its command signal, so ECU 26 is difficult to direct control SL2 switch 22 from ECU 26.Here, SL drive relay 24 on current capacity less than SL2 switch 22, so can be by switching on and off SL and drive relay 24 than switching on and off the littler electric current of the needed electric current of SL2 switch.The instruction that switches on and off based on from ECU 26 switches on and off SL2 and drives relay 24, switching on and off the SL2 switch, switches on and off SL2 switch 22 in being based on to instruct from these of ECU 26.
When operating ignition switch (ignition key) 30 rotatably by driver's (vehicle operator), also electric power is fed to motor 16 and actuator 14 from battery 18.Particularly, SL2 switch 22 also is provided with SL2 initial driving relay 32 except that SL drives 24, and can switch on and off SL2 switch 22 by SL2 initial driving relay 32.Switch on and off SL2 initial driving relay 32 through starting drive switch 36, neutral position switch 38 and delay circuit 40.Rotary manipulation by ignition switch 30 switches on and off starting drive switch 36.When the drive range of unshowned transmission device among Fig. 1 is shifted gears N (neutral) or P (parking) scope etc., connect neutral position switch 38.Except that SL1 drives relay 28, also between battery 18 and actuator 14, arrange SL1 initial driving relay 34.Switch on and off SL1 initial driving relay 34 through starting arrangement 36 and neutral position switch 38.
In such configuration; Drive relay 28 with SL1 initial driving relay 34, when switching on by 18 pairs of actuators 14 of battery then when connecting SL1; Small gear 12 is advanced in the ring gear 46 with output shaft (bent axle 44) mechanical coupling of engine 42, is meshed with ring gear 46 then.Drive relay 24 or SL2 initial driving relay 32 so that connect SL2 switch 22, when switching on by 18 pairs of motor 16 of battery then, operate small gear 12 rotatably when connecting SL2, give bent axle 44 (execution is shaken) thereby will initially rotate.
Above system is equipped with the for example apparatus of air conditioning 48 or power steering apparatus 50.The apparatus of air conditioning 48 is carried out the air conditioning in the cars, and the turning to of power steering apparatus 50 driver assistance persons.
Fig. 7 illustrate the microcomputer 260 that is included among the ECU 26 (corresponding to according to the change processing unit of present embodiment, acquiring unit, diagnosis unit, automatically start-stop control unit, exception processing unit and forbid processing unit) configuration.
As shown in Figure 7, mainly by battery 18 is formed as the microcomputer 260 of power supply, wherein, microcomputer 260 comprises known CPU (central processing unit) 261, ROM (ROM (read-only memory)) 262 and RAM (random access storage device) 263 to ECU 26.ECU 26 receives from the for example output signal of voltage transducer 52, current sensor 54 and air conditioning deploy switch 56.Voltage transducer 52 detects the voltage and current in the battery 18 respectively with current sensor 54.The driver is used for the car internal object temperature of air conditioning control and the mode of air quantity with setting, operates air conditioning deploy switch 56.ECU 26 carries out the various control programs that are stored among the ROM 262 based on above input, comprises the processing of the following with execution: air conditioning control processing, the control processing to power steering apparatus 50, reset processing, free time of the apparatus of air conditioning 48 stopped control processing and the drive controlling of starting arrangement 10 is handled.
In fact in the apparatus of air conditioning 48, power steering apparatus 50 and the automotive engine system etc. each operated by independent electronic control unit.In the present embodiment, these electronic control units are represented by ECU 26.
Reset processing is such processing: if be lower than needed voltage (for example 6V) based on the output value calculated cell voltage of voltage transducer 52, then carry out the processing of the data that empty storage among the RAM 263 and the microcomputer 260 that resets.The purpose of this processing is the situation that the various controls of the minimizing traffic tool can't suitably be carried out.The checkout value that ECU 26 obtains from various sensors is stored in these checkout values among the RAM 263 temporarily, and carries out various controls based on the checkout value of these storages.If, then can't suitably carry out various controls owing to the reliability of the checkout value that causes guaranteeing the operation of microcomputer as degradation under the voltage of the battery 18 of power supply or stored reduces.Because this; Carry out reset processing the default value of storage among the ROM 262 is used as the needed data of various controls of the traffic tool; And again with desired storage in RAM263, the situation that these various controls that reduce the traffic tool can't suitably be carried out.
It is such processing that free time stops control processing: if satisfy predetermined stop condition; Then stop fuel injection etc. so that stop engine automatically; And if satisfy predetermined restarting condition subsequently, the drive controlling of then starting starting arrangement 10 and fuel injection etc. are so that automatic restarting engine.The logical produc that stop condition can be condition is genuine condition, and wherein condition comprises that the travelling speed of the condition of carrying out brake operating and the traffic tool is lower than the second condition greater than zero predetermined speed.The restarting condition can be the condition that discharges brake operating.
The drive controlling processing of starting arrangement 10 is to carry out the processing of shaking through the power-on servicing of short-circuit relay 20b, SL1 driving relay 28 and SL2 driving relay 24.With reference to figure 2, above drive controlling will be described here.Particularly, Fig. 2 (a) illustrates the change based on the battery current I of the output value of current sensor 54, and Fig. 2 (b) illustrates the change of the drive condition of short-circuit relay 20b, and Fig. 2 (c) illustrates the change of the drive condition of SL2 switch 22.
As shown in Figure 2, at first, at time t1, in order to reduce the inrush current when starting arrangement 10 starting, from ECU 26 output needles to the open command of short-circuit relay 20b to break off short-circuit relay 20b (with reference to figure 3A).Subsequently, at time t2, connect SL and drive relay 24 and connect SL2 switch 22 then, so that motor 16 is switched on.With battery 18 is compared with the situation of motor 16 short circuits shown in the dotted line of Fig. 2 (a), this can reduce the inrush current that in motor 16, flows through shown in the solid line of Fig. 2 (a).
Then, at time t3, by connecting short-circuit relay 20b from going code of ECU 26, then with battery 18 and motor 16 short circuits so that electric current can be fed to motor 16 (referring to Fig. 3 B) fully.Particularly, the electric current that is fed to motor 16 is carried out rectification, can guarantee that motor 16 is by the value of shaking needed generation moment of torsion so that become.Subsequently,, shake the speed that the rotational speed that causes engine is higher than definition if ECU26 judges, then break off the SL2 switch with the control processing of completion to starting arrangement 10 at time t4.
Here, with describing since the operation of ignition switch 30 cause when engine 42 starts (initial start) to the drive controlling of starting arrangement 10.At first, ignition switch 30 is moved to ACC or on positi rotatably, break off short-circuit relay 20b then by driver's operation.Subsequently, ignition switch 30 is moved to the starting position rotatably, connect starting arrangement switch 36 then.When connecting starting arrangement switch 36, connect SL1 initial driving switch 34, then electric power is fed to actuator 14 from battery 18.Then, after the delay of the scheduled time that causes owing to delay circuit 40, connect SL2 initial driving relay 32, connect SL2 switch 22 then to switch on from 18 pairs of motor 16 of battery, this makes it possible to carry out and shakes.
When switching on and off short-circuit relay 20b, produce electrical spark.Because electrical spark etc., the adhesion that the switch 20b that can in ICR relay 20, be short-circuited can't switch on and off is unusual.In this case, can cause following inconvenience.For example, if above " open failure " that causes short-circuit relay 20b unusually, then shown in the dot and dash line of Fig. 2 (a), electric current is by resistor 20a restriction, so resistor 20a can be by thermal destruction when shaking.In this case, can't drive starting arrangement 10, so can't start engine 42.
On the other hand, if above " the connection fault " that causes short-circuit relay 20b unusually then shown in the dotted line of Fig. 2 (a), can't reduce the inrush current that in motor 16, flows through when shaking, so the voltage of battery 18 can descend.Therefore, can carry out reset processing.In this case, stop the drive controlling of starting arrangement 10 is handled and fuel Injection Control etc.Because this can postpone the completion of the starting of engine 42.In addition, when carrying out reset processing, the air conditioning configuration information of being set through air conditioning deploy switch 56 by the driver such as air quantity and target temperature becomes default value, bothers so the driver can be regulated configuration information by input air again.
In the present embodiment, can when the traffic tool just move, stop control and stop engine 42 automatically, and can start starting arrangement 10 by the free time, so as when the traffic tool just to move restarting engine 42.In this case, because the decline of cell voltage is carried out reset processing, so can cause following inconvenience.When carrying out reset processing, stop control, so can't suitably operate the actuator of the electric action type of this equipment 50 to power steering apparatus 50.Therefore, in the operation traffic tool, power steering apparatus 50 is the operational capacity of assisted diversion wheel suitably.
In order to address these problems; In the present embodiment; When the open command of the short-circuit relay 10 when starting arrangement 10 startings is changed into and is gone code; ECU 26 execute exception diagnostic process to be diagnosing unusual the existing or do not exist of ICR relay 20 based on the change amount of battery current, if diagnosis exists unusually then, go back exercise notice and handle with this result notification driver.This has reduced the situation of using starting arrangement under the unusual state of in ICR relay 20 generation continuously.Hereinafter, the abnormity diagnosis of describing in detail ICR relay 20 is handled.
Fig. 4 illustrates the abnormity diagnosis technology according to present embodiment.Particularly, Fig. 4 (a) and Fig. 4 (c) correspond respectively to Fig. 2 (a) and Fig. 2 (b), and Fig. 4 (b) illustrates the change amount Δ I of battery current.Here, shown in Fig. 4 (c), Δ I is the change amount of battery current with respect to predetermined amount of time Δ t (for example some milliseconds).
As shown in Figure 4; At time t1; From the open command of ECU 26 output short-circuit relay 20b,, become when going code when changing to the open command of short-circuit relay 20b by ECU 26 subsequently at time t3; If ECU 26 judges that the change amount Δ I of battery current is greater than specified value α (Δ I＞α), then do not take place unusual in the ECU 26 judgement ICR relays 20.On the contrary, be specified value α or littler (Δ I≤α), then in the ECU 26 judgement ICR relays 20 unusual (" connection fault " or " open failure ") takes place if ECU26 judges the change amount Δ I of battery current.This is a diagnostic techniques of having considered the following fact: if take place to adhere to unusually among the short-circuit relay 20b, the resistance value that then changes over ICR relay 20 when going code when open command does not have change.Can preestablish specified value α based on for example test result.
Here, because following former thereby change amount Δ I use battery current in the abnormity diagnosis operation.If the temperature change of battery 18 or battery 18 times to time change, then shown in Fig. 3 A and Fig. 3 B, the internal resistance of battery 18 changes, so with respect to electric power Vo, cell voltage (terminal voltage) Vb can change.In this case, when open command changes over when going code, the change amount of cell voltage Vb changes.Because this can't set to be suitable for confirming in the ICR relay 20 whether unusual specified value α to take place, in the diagnosis ICR relay 20 whether unusual degree of accuracy takes place and degenerate so can make.According to this, not the change amount of cell voltage but the change amount of battery current is used to prevent above inconvenience.
The traffic tool generally are equipped with the current sensor 45 of the state that is used for monitoring battery 18, are not used for the new sensor that abnormity diagnosis is handled so the traffic tool need not be equipped with.
Fig. 5 diagram is according to the abnormity diagnosis processed steps of ICR relay 20 of the present invention.This processing is for example carried out with the predetermined cycle by ECU 26.Fig. 8 illustrates the functional configuration of microcomputer 260 of the ECU 26 of execute exception diagnostic process.In the example of Fig. 8, microcomputer 260 comprises abnormity diagnosis unit 100 (corresponding to the diagnosis unit according to present embodiment) and Δ I acquiring unit 200 (corresponding to the acquiring unit according to present embodiment).Abnormity diagnosis unit 100 comprises that diagnostic markers F2 (being called as " diagnosing execute flag F2 " hereinafter) judging unit 114, first diagnoses execute flag F2 setup unit 116, Δ I judging unit 118, second opinion execute flag F2 setup unit 120, abnormity diagnosis sign F1 setup unit 122 and notice and IS to forbid processing unit 124 in abnormity diagnosis sign F1 judging unit 110, diagnosis executive condition judging unit 112, the execution.
In handling sequence; At step S10; ECU 26 judges whether the value of abnormity diagnosis sign F1 is that " 0 " (this processing response is in predetermined beginning control signal S100; This begins control signal S100 and is used for controlling the beginning timing with the processing sequence of predetermined period generation by ECU 26, and for example carries out this processing by abnormity diagnosis sign F1 judging unit 110 shown in Figure 8).Here, the value of abnormity diagnosis sign F1 is " 0 " and " 1 ", does not wherein take place unusually in " 0 " expression ICR relay 20, and takes place unusual in " 1 " expression ICR relay 20.The value of this abnormity diagnosis sign F1 is stored in the nonvolatile memory of the EEPROM (electric erasable and programmable read only memory) such as ECU 26, and its initial value is set to " 0 ".
At step S10; If ECU 26 judges that the value of abnormity diagnosis sign F1 is " 0 " (being); Then ECU 26 advances to the processing of execution in step S12, to judge whether to satisfy diagnosis executive condition (this processing is for example carried out by diagnosis executive condition judgement judging unit 112 shown in Figure 8).In the present embodiment, the diagnosis executive condition is the logic of condition and is genuine condition that wherein, condition comprises the condition and the condition that satisfies the restarting condition of the initial start that has engine 42.To whether existing the judgement of the initial start of engine 42 can be based on the operational condition of ignition switch 30.
At step S12; If judging, ECU 26 satisfies diagnosis executive condition (being); Then ECU 26 advances to the processing of execution in step S14, to judge whether diagnosis execute flag F2 is " 0 " (this processing is for example carried out by diagnosis execute flag F2 judging unit 114 shown in Figure 8).The purpose of this processing is even handle when the abnormity diagnosis of carrying out short-circuit relay 20b, owing to short-circuit relay 20b " connection fault " carried out reset processing, when stopping the abnormity diagnosis processing then, also suitably to take action subsequently.Here, the value of diagnosis execute flag F2 is " 0 " and " 1 ", and wherein not execute exception diagnostic process is represented also in " 0 ", and " 1 " expression abnormity diagnosis is handled in commission.The value of diagnosis execute flag F2 is stored in the nonvolatile memory such as the EEPROM of ECU 26, and its initial value is set to " 0 ".
At step S14; F2 is " 0 " (being) if ECU 26 judges the diagnosis execute flag; Then ECU 26 advances to the processing of execution in step S16, is set at " 1 " (this processing is for example carried out by the first diagnosis execute flag F2 setup unit 116 shown in Figure 8) with the value that will diagnose execute flag F2.
Subsequently, at step S18, when ECU 26 changes over open command when going code, ECU26 judges that whether the change amount Δ I of battery current is greater than specified value α (Δ I＞α) (this processing is for example carried out by Δ I judging unit 118 shown in Figure 8).By the Δ I acquiring unit 200 shown in Fig. 8 based on the value I amount of obtaining Δ I by current sensor 54 detected battery currents.
At step S18; If the change amount Δ I in the ECU 26 judgement battery currents is greater than specified value α (Δ I＞α) (be); Then do not take place unusually in the ECU 26 diagnosis ICR relays 20, will diagnose the value of execute flag F2 to be set at " 0 " (this processing is for example carried out by the second opinion execute flag F2 setup unit 120 shown in Fig. 8) at step S20 then.
On the contrary; At step S18; If it is specified value α or (Δ I≤α) (deny) still less that ECU 26 judges the change amount Δ I of battery currents; Then ECU 26 judges that generation is unusual in the ICR relay 20, will diagnose the value of execute flag F2 to set " 1 " (this processing is for example carried out by the abnormity diagnosis sign F1 setup unit 122 shown in Fig. 8) at step S22 then.
If ECU 26 is judged as not at step S10 or S14; The perhaps processing of completing steps S22; Then ECU 26 advances to the processing of execution in step S24, promptly notifier processes with forbid the processing that the free time stops to control (IS forbids handling) (this processing for example forbids that by notice shown in Fig. 8 and IS processing unit 124 carries out).The purpose of these processing is the situations that prevent in ICR relay 20, to take place to use continuously in the unusual state starting arrangement 10.Here; Notifier processes for example can be to be opened stand by lamp or passes through this result of sound notification; And IS forbids handling and for example can be the self-braking subsequently processing of forbidding engine 42 (for example, forbidding that via notice and IS 100 outputs are used to control notice and IS and forbid the control signal handled processing unit 124 from the abnormity diagnosis unit).
Abnormity diagnosis sign F1 for example can be repaired at repairing factory with the value of diagnosis execute flag F2, is configured to " 0 " then.
If ECU 26 is not judged as not at step S10, S12 or S14, the perhaps processing of completing steps S20 or S24 is then accomplished and is handled sequence (for example, relevant therewith completion signal S110 100 outputs from the abnormity diagnosis unit via the corresponding unit shown in Fig. 8).
In the present embodiment of above detailed description, the effect below obtaining.
(1) when starting arrangement starts, if open command is changed over when going code as ECU 26, ECU 26 judges that the change amount Δ I of battery currents is specified value α or still less (Δ I≤α), then ECU 26 diagnosis take place unusual in ICR relay 20.This makes to diagnose suitably whether possibility takes place in the ICR relay 20 to become unusually.In addition, the change amount Δ I based on battery current comes diagnosing abnormal.This also can reduce the generation of such situation: because the change of the internal resistance of battery 18 makes whether unusual degree of accuracy degeneration takes place in the diagnosis ICR relay 20.
(2) if ECU 26 judges to be taken place in the ICR relay 20 unusually, then processing of ECU 26 exercise notices and IS forbid handling.This can suitably reduce the situation of using starting arrangement 10 under the unusual state of in ICR relay 20 generation continuously.
(3) the abnormity diagnosis processing is applied to carry out the traffic tool that the free time stops to control.In this case, compare, frequently use starting arrangement 10, so the inconvenience that causes owing to the unusual generation in the ICR relay 20 becomes main with not carrying out the traffic tool that the free time stops to control.In the present invention, abnormity diagnosis is handled and is applied to carry out the traffic tool that the free time stops to control, and also is very useful so abnormity diagnosis is handled.
(4) if in the abnormity diagnosis processing of carrying out ICR relay 20, carry out reset processing, then forbid handling by processing of ECU 26 exercise notices and IS subsequently by ECU 26.According to this,, also can suitably carry out action subsequently even the microcomputer 260 of ECU 26 resets owing to " the connection fault " of short-circuit relay 20b.
(other embodiment)
Can make amendment to above embodiment like following institute with providing.
(i) in above embodiment, ECU 26 is configured to judge whether take place in the ICR relay unusually based on the change amount Δ I of battery current, but the invention is not restricted to this configuration.For example, ECU 26 can judge whether take place in the ICR relay 20 unusually based on the change amount Δ V of cell voltage.As shown in Figure 6, this is based on battery current and cell voltage is relative to each other.Particularly, Fig. 6 (a) illustrates the change of battery current I and cell voltage V, and Fig. 6 (b) and Fig. 6 (c) correspond respectively to Fig. 2 (b) and Fig. 2 (c).As stated, because the change of the internal resistance of battery 18 can make the degree of accuracy degeneration to the diagnosis of ICR relay 20.According to this, if desired diagnosis accuracy is remained height, preferably use the change amount Δ I of battery current.
(ii) in above embodiment, ECU 26 is configured to come the execute exception diagnostic process based on the output value of the sensor of the state that is used for monitoring battery 18 (current sensor 54), but the invention is not restricted to this configuration.For example; ECU 26 can comprise following one of at least: the sensor that is used for detecting the electric current that starting arrangement 10 flows through; Be used to detect the sensor of the voltage that is applied to starting arrangement 10; And be used to detect the sensor of the curtage on the power path between battery 18 and the starting arrangement 10, and ECU 26 comes the execute exception diagnostic process based on the change of the curtage that calculates according to the output value of same sensor.
Being applied to (iii) that rotation that starting arrangement 10 of the present invention is not limited to small gear 12 drives and promote operation is respectively executable starting arrangement, has the starting arrangement that Japan Patent is openly announced disclosed configuration among Fig. 4 of 2009-185760 number but for example can be.In this case, when starting arrangement starts, change over to the open command of short-circuit relay 20b and to go code, if short-circuit relay 20b is in proper working order then, then battery current changes, and this makes it possible to carry out the abnormity diagnosis to ICR relay 20.
(iv) in above embodiment, short-circuit relay 20b is configured to when the drive controlling of starting arrangement 10 is handled, switch on and off through the instruction that switches on and off from ECU 26, but the invention is not restricted to this configuration.For example, short-circuit relay 20b can be configured to switch on and off through following configuration: the power path between SL2 driving relay 24 and the SL2 switch is connected to the coil of short-circuit relay 20b via delay circuit.In this case, connect SL2 and drive relay 24, in the past after the scheduled time, connect short-circuit relay 20b subsequently.
(v) inrush current minimizing unit is not limited to the unit such as ICR relay 20 that its resistance value is a two-stage variable, but can be the device of its resistance value continuous variable.For example, the resistance value of device can be set to specified value (＞0) when starting arrangement 10 startings, be reduced to zero subsequently along with the time.
(vi) short-circuit relay 20b is not limited to the normally closed type, but can be normal open ended.
(vii) be applied to the traffic tool of the present invention and be not limited to carry out the traffic tool that the free time stops to control, do not carry out the traffic tool that the free time stops to control but can be.In this case, when starting arrangement 10 is driven by the operation of ignition switch 30, for example can cause inconvenience, so application of the present invention is effective unusually by the execution of reset processing if take place in the ICR relay 20.
Can under the situation that does not depart from spirit of the present invention, come embodiment of the present invention with some other forms.So, because scope of invention limits appending claims rather than in the specification before claims, so to be intended to only be illustrative for up to the present described embodiment and modification, rather than restrictive.So being equal to interior being changed of scope and border or such scope and border that falls into claims, be intended to surrounded by claims.
Claims (11)
1. control apparatus (26) that is used to control the starting arrangement (10) that the engine (42) that is installed on the traffic tool is started; These traffic tool are provided with has variable-resistance surge minimizing unit (20); This surge reduces unit (20) and is arranged on the power path that connects said starting arrangement (10) and battery (18), and said control apparatus (26) comprising:
Change processing unit (260); From said battery (18) in said starting arrangement (10) supply electric power; Said change processing unit (260) is carried out to change and is handled, and changes into low resistance state with the resistance value that said surge is reduced unit (20) from high resistance state;
Acquiring unit (200,260), when said change processing was performed, said acquiring unit (200,260) obtained the relevant parameter value (Δ I) of change that reduces the said resistance value of unit (20) with said surge; And
Diagnosis unit (100,260), whether it diagnoses said inrush current to reduce to take place in the unit (20) unusual based on said parameter value (Δ I).
2. control apparatus according to claim 1, wherein:
Said parameter value (Δ I) is the change amount of the curtage one of at least in the said power path between said battery (18), said starting arrangement (10) and said battery (18) and the said starting arrangement (10).
3. control apparatus according to claim 1, wherein:
What said inrush current unit (20) comprised resistor (20a) and switch (20b) is connected in parallel that (20a 20b), and switches on and off said switch (20b) to allow said resistance value variable; And
(20a 20b) is connected in series to switch element (22) to said being connected in parallel, and said switch element (22) is switched on and breaks off to allow said power path open circuit and closed.
4. control apparatus according to claim 1, wherein:
The said traffic tool are provided with the automatic start-stop control unit (260) of controlling said starting arrangement (10) as follows: if satisfy predetermined stop condition; Then stop said engine (42) automatically; And subsequently, if satisfy predetermined restarting condition, the then automatic said engine of restarting (42).
5. control apparatus according to claim 1 also comprises:
Exception processing unit (124), said unusual if said diagnosis unit is diagnosed said inrush current to reduce to take place in the unit (20), then said exception processing unit (124) exercise notice is handled with this result notification driver.
6. control apparatus according to claim 5, wherein:
If when carrying out the processing of said diagnosis unit (100,260), carry out reset processing, then said exception processing unit (124) is carried out said notifier processes.
7. control apparatus according to claim 4 also comprises:
Forbid processing unit (124); If it is said unusual that the said inrush current of said diagnosis unit (100) diagnosis reduces the middle generation in unit (20); Then saidly forbid that processing unit (124) is carried out and forbid handling, control said starting arrangement (10) to forbid said automatic start-stop control unit (260).
8. control apparatus according to claim 4, wherein:
Said diagnosis unit (100; 260) said parameter value (Δ I) and predetermined value (α) are compared; And if said parameter value (Δ I) is greater than said predetermined value (α); Then diagnose said inrush current to reduce not take place in the unit (20) said unusual, and if said parameter value (Δ I) be said predetermined value (α) or still less, then diagnose said inrush current to reduce to take place in the unit (20) said unusual.
9. starting arrangement system comprises:
The starting arrangement (10) that the engine (42) that is installed on the traffic tool is started; And
Control the control apparatus (26) of said starting arrangement (10),
Wherein:
The said traffic tool are provided with has variable-resistance surge minimizing unit (20), and this surge reduces unit (20) and is arranged on the power path that connects said starting arrangement (10) and battery (18), and
Said control apparatus (26) comprising:
Change processing unit (260); From said battery (18) in said starting arrangement (10) supply electric power; Said change processing unit (260) is carried out to change and is handled, and changes into low resistance state with the resistance value that said surge is reduced unit (20) from high resistance state;
Acquiring unit (200,260), when said change processing was performed, said acquiring unit (200,260) obtained the relevant parameter value (Δ I) of change that reduces the said resistance value of unit (20) with said surge; And
Diagnosis unit (100,260), whether it diagnoses said inrush current to reduce to take place in the unit (20) unusual based on said parameter value (Δ I).
10. vehicle-mounted automotive engine system comprises:
Be installed in the engine (42) on the traffic tool;
Start the starting arrangement (10) of said engine (42); And
Control the control apparatus (26) of said starting arrangement (10),
Wherein:
The said traffic tool are provided with surge and reduce unit (20), and this surge reduces the unit and is arranged on the power path that connects said starting arrangement (10) and battery (18), and allows its resistance-variable, and
Said control apparatus (26) comprising:
Change processing unit (260); From said battery (18) in said starting arrangement (10) supply electric power; Said change processing unit (260) is carried out to change and is handled, and changes over low resistance state with the resistance value that said surge is reduced unit (20) from high resistance state;
Acquiring unit (200,260), when said change processing was performed, said acquiring unit (200,260) obtained the relevant parameter value (Δ I) of change that reduces the said resistance value of unit (20) with said surge; And
Diagnosis unit (100,260), whether it diagnoses said inrush current to reduce to take place in the unit (20) unusual based on said parameter value (Δ I).
11. controlling method that is used to control the starting arrangement (10) that the engine (42) that is installed on the traffic tool is started; The said traffic tool are provided with has variable-resistance surge minimizing unit (20); This surge reduces unit (20) and is arranged on the power path that connects said starting arrangement (10) and battery (18), and said controlling method comprises:
From said battery (18) in said starting arrangement (10) supply electric power, carry out to change and handle, change into low resistance state with the resistance value that said surge is reduced unit (20) from high resistance state;
When said change processing is performed, obtain the relevant parameter value (Δ I) of change that reduces the said resistance value of unit (20) with said surge; And
Whether diagnose said inrush current to reduce in the unit (20) based on said parameter value (Δ I) takes place unusually.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010250405A JP5418470B2 (en) | 2010-11-09 | 2010-11-09 | Starter control device |
| JP2010-250405 | 2010-11-09 |
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| Publication Number | Publication Date |
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| CN102705127A true CN102705127A (en) | 2012-10-03 |
| CN102705127B CN102705127B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110353726.XA Active CN102705127B (en) | 2010-11-09 | 2011-11-09 | Control equipment for starting device |
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| Country | Link |
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| JP (1) | JP5418470B2 (en) |
| CN (1) | CN102705127B (en) |
| DE (1) | DE102011055140A1 (en) |
Cited By (2)
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| CN103061944A (en) * | 2012-12-29 | 2013-04-24 | 广州汽车集团零部件有限公司 | Method for inhibiting peak starting current of start-stop motor, relay and start-stop motor |
| CN106184066A (en) * | 2015-05-28 | 2016-12-07 | 丰田自动车株式会社 | Vehicle |
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| JP5910476B2 (en) * | 2012-12-06 | 2016-04-27 | 株式会社デンソー | Engine starter |
| JP5962575B2 (en) * | 2013-04-23 | 2016-08-03 | 株式会社デンソー | Starter |
| WO2016021003A1 (en) * | 2014-08-06 | 2016-02-11 | 日産自動車株式会社 | Engine-starting control device, and engine-starting control method |
| US11345358B2 (en) | 2020-02-17 | 2022-05-31 | Honda Motor Co., Ltd. | Engine electronic control unit for a vehicle |
| JP7314880B2 (en) | 2020-08-21 | 2023-07-26 | トヨタ自動車株式会社 | BATTERY DIAGNOSTIC APPARATUS, METHOD, PROGRAM AND VEHICLE |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5418470B2 (en) | 2014-02-19 |
| JP2012102640A (en) | 2012-05-31 |
| CN102705127B (en) | 2015-04-08 |
| DE102011055140A1 (en) | 2012-05-10 |
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