CN111211611A - Motorcycle power supply control method - Google Patents
Motorcycle power supply control method Download PDFInfo
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- CN111211611A CN111211611A CN201811391968.6A CN201811391968A CN111211611A CN 111211611 A CN111211611 A CN 111211611A CN 201811391968 A CN201811391968 A CN 201811391968A CN 111211611 A CN111211611 A CN 111211611A
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- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000010248 power generation Methods 0.000 claims abstract description 26
- 239000007858 starting material Substances 0.000 claims description 26
- 238000010586 diagram Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 230000008859 change Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
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Abstract
The invention relates to a motorcycle power supply control method, which comprises the following steps: (A) the engine of the motorcycle is in a starting state, and the integrated starting generator provides power generation voltage; (B) detecting whether the voltage is higher than a first protection voltage, if so, performing step (B1): executing a protection mechanism and carrying out the step (C), if not, returning to the step (A); (C) detecting whether the number of times of execution of the protection mechanism is greater than or equal to a first specific number of times within a first specific time, if so, performing step (D), otherwise, performing step (C1): zeroing the first specific number of times and returning to the step (A); (D) entering a battery offline mode, and controlling the integrated starting generator to generate power at a low power generation voltage; (E) and (D) judging whether the batteries are normally connected by using at least one battery offline judging method, if so, recovering normal power generation and returning to the step (A), and if not, returning to the step (D).
Description
Technical Field
The invention relates to a motorcycle power supply control method, in particular to a motorcycle power supply control method for adjusting the generating voltage of an integrated starter generator by using a protection mechanism.
Background
The present commonly used personal transportation means generally includes an automobile and a motorcycle, and the motorcycle type transportation means is a two-wheel, three-wheel or four-wheel vehicle which is driven by an engine and mainly uses a handle to operate the direction, and the vehicle is the most commonly used transportation means at present due to the characteristics of simple operation, convenient action and low price.
Generally, motorcycles that use an Integrated Starter Generator (ISG) include a controller electrically connected to the Integrated Starter Generator, wherein the controller controls the battery energy to be transmitted to the Integrated Starter Generator to drive a crankshaft and start an engine, when the engine is started, the engine drives the Integrated Starter Generator to rotate, the voltage of the Integrated Starter Generator is higher than that of the battery, and the controller needs to convert a control mode to convert the generated energy of the Integrated Starter Generator into a proper voltage and current through rectification, phase control, and the like, and then charges the battery.
Generally, an integrated starter generator is directly driven by an engine, the rotating speed of the integrated starter generator is synchronous with the engine, the integrated starter generator can reach a high rotating speed to ten thousand revolutions or even more than ten thousand revolutions, the generated voltage generated by the integrated starter generator is in direct proportion to the rotating speed, and the generated voltage is higher than a battery, so the voltage must be controlled to be reduced to charge the battery, if a connecting wire or a joint electrically connected with the battery of a controller drops, the controller can lose a loop for charging the battery instantly, and if the generated voltage is not adjusted and controlled instantly, the voltage can be pulled up instantly by a large margin, and irreversible damage to elements such as the controller is caused.
Therefore, the inventor conceives a power supply control method for a motorcycle based on the spirit of active invention creation, and utilizes a controller to execute a protection mechanism, so that the power supply control method can still have stable voltage to supply the normal operation and the normal riding of the whole motorcycle under the condition that a battery is off-line, and can have a corresponding control mode when the battery is in poor contact or the battery is electrically connected back to the controller so as to keep the voltage supplied to the power supply load of the whole motorcycle stable, and the invention is finally completed through research and experiments.
Disclosure of Invention
The present invention is directed to solving the above problems, and provides a power control method for a motorcycle, which utilizes a protection mechanism to adjust the generated voltage of an integrated starter generator, so as to stabilize the voltage supplied to the power load of the whole motorcycle.
In order to achieve the above object, the motorcycle power control method of the present invention is applied to a motorcycle having a battery, a controller and an integrated starting generator, wherein the battery is electrically connected with the controller, the controller is electrically connected with the integrated starting generator, the controller comprises a microcomputer unit, a voltage sensing circuit, a control circuit and a switch circuit which are electrically connected with each other, and the motorcycle power control method comprises the following steps: (A) the engine of the motorcycle is in a starting state, and the integrated starter generator provides power generation voltage; (B) detecting whether the voltage is higher than a first protection voltage, if so, performing step (B1): executing a protection mechanism and performing the step (C), if not, returning to the step (A), wherein the protection mechanism is used for controlling the switching circuit to enable the three phases of the integrated starting generator to be in short circuit and cause voltage drop, and when the voltage drops to be lower than a second protection voltage, enabling the integrated starting generator to return to normal power generation; (C) taking the voltage higher than the first protection voltage for the first time as a starting point, detecting whether the execution times of the protection mechanism is greater than or equal to a first specific time within a first specific time, if so, performing step (D), and if not, performing step (C1): the first specific times is reset to zero and returns to the step (A); (D) entering a battery off-line mode, and controlling the integrated starting generator to generate power at a low power generation voltage; (E) using at least one battery off-line judging method to judge whether the battery is normally connected, if so, performing the step (E5): and (D) controlling the integrated starter generator to recover normal power generation and returning to the step (A), and if not, returning to the step (D).
The method may further comprise a step (D1) after the step (D): the protection mechanism is performed when the voltage is higher than the first protection voltage.
The first protection voltage may be 15.5V, the second protection voltage may be 14.6V, the first specific time may be 200 milliseconds (ms), and the first specific number of times may be 3 times.
The switch circuit can be a single-phase two-arm circuit, a single-phase four-arm circuit, a three-phase six-arm circuit, or a structure that increases the number of parallel switches of each arm in a three-phase structure.
The above-mentioned at least one battery offline judging method may include: detecting a second specific number of voltage readings, determining whether each voltage reading in the second specific number of voltage readings is within +/-0.3V of a charging voltage, if so, determining that the battery is normally connected, otherwise, determining that the battery is abnormally connected, and otherwise, setting the second specific number to be between 10 and 100 times.
The above-mentioned at least one battery offline judging method may include: detecting a voltage reading value in a second specific time, and judging whether the voltage reading value in the second specific time is within +/-0.3V of a charging voltage every time, if so, judging that the battery is normally connected, otherwise, judging that the battery is abnormally connected, and in addition, the second specific time can be set to be 10 milliseconds or 100 milliseconds.
The above-mentioned at least one battery offline judging method may include: calculating the average value of the detected voltage readings within a third specific time or a third specific time, determining whether the average value is within +/-0.2V of a charging voltage, if so, determining that the battery is normally connected, if not, determining that the battery is abnormally connected, otherwise, setting the third specific time to be 10 times or 100 times, and setting the third specific time to be 10 milliseconds or 100 milliseconds.
The above-mentioned at least one battery offline judging method may include: determining the amount of variation S2Whether the voltage is less than or equal to 0.5, if so, judging the battery to be normally connected, if not, judging the battery to be abnormally connected, and changing the quantity S2Satisfies the following relation (1):
S2n is a fourth specific number of times, Xi is the voltage reading measured in each of the fourth specific number of times,
the fourth specific number of times may be set to be between 10 and 100 times, in addition to the average value of all the voltage readings measured in the fourth specific number of times.
The charging voltage may be 14.5V.
The foregoing general description and the following detailed description are exemplary in nature and are intended to provide further explanation of the invention claimed, and further explanation of the invention claimed, so that the objects, features and advantages of the invention will be understood more fully from the following description and accompanying drawings.
Drawings
Fig. 1 is a schematic view of the electrical connection structure in a motorcycle to which the motorcycle power supply control method of the present invention is applied.
Fig. 2 is a schematic view showing an off-line structure of a battery in a motorcycle to which the power control method of the motorcycle of the present invention is applied.
FIG. 3 is a schematic diagram of the variation of the generated voltage in the motorcycle power control method of the present invention.
Fig. 4 is a schematic diagram of a determination process of the motorcycle power control method according to the first embodiment of the present invention.
Fig. 5 is a schematic diagram of a determination process of a motorcycle power control method according to a second embodiment of the present invention.
Fig. 6 is a schematic diagram of a determination process of a motorcycle power control method according to a third embodiment of the present invention.
Fig. 7 is a schematic diagram of a judgment flow of a motorcycle power control method according to a fourth embodiment of the present invention.
Description of the main element symbols:
11 cell
12 controller 121 microcomputer unit
122 voltage sensing circuit 123 control circuit
124 switching circuit
13 integrated starting generator
Excess voltage of P1, P2 and P3
SA-SD step SB1 step
SC1 step SD1 step
SE 1-SE 5 steps
T1 first specific time
V1 first protection voltage V2 second protection voltage
V3 low generating voltage
Detailed Description
Referring to fig. 1 to 3, there are respectively shown a schematic diagram of an electrical connection structure in a motorcycle, a schematic diagram of an off-line structure of a battery in the motorcycle, and a schematic diagram of a change in generated voltage of the motorcycle power control method according to the present invention.
The motorcycle power supply control method of the invention is applied to a motorcycle with a battery 11, a controller 12 and an integral starting generator 13, the battery 11 is electrically connected with the controller 12, and the controller 12 is electrically connected with the integral starting generator 13, the controller 12 comprises a microcomputer unit 121, a voltage sensing circuit 122, a control circuit 123 and a switch circuit 124 which are electrically connected with each other, the microcomputer unit 121 detects voltage through the voltage sensing circuit 122 and adjusts the voltage through the control circuit 123 and the switch circuit 124, so that the whole motorcycle power supply load is kept stable, and the integral starting generator 13 and a crankshaft of an engine of the motorcycle coaxially rotate and provide generating voltage.
Fig. 1 is an electrical connection diagram of a motorcycle in normal operation, and fig. 2 is an electrical connection diagram of a situation such as when a connection wire or a joint electrically connected with a battery falls, that is, a battery off-line state, when the situation as shown in fig. 2 occurs, the motorcycle power control method of the present invention can protect according to a generated voltage change (as shown in fig. 3), so as to prevent the generated voltage from being out of control when the battery is off-line, and damage to the controller 12 or the entire vehicle electronic system is avoided.
Next, a motorcycle power control method of the present invention is described with reference to fig. 4, which is a schematic diagram of a determination process of a first embodiment of the motorcycle power control method of the present invention, and with reference to fig. 1 to 3.
The first embodiment of the motorcycle power supply control method of the present invention comprises the steps of: step SA, the engine of the motorcycle is in a starting state, and the integrated starter generator 13 provides power generation voltage; step SB detects whether the voltage is higher than a first protection voltage V1, if yes, step SB1 executes a protection mechanism and step SC, if no, step SA is returned.
The protection mechanism of the present invention is to control the switch circuit 124 to short-circuit the three phases of the integrated starter generator 13 and cause voltage drop, and when the voltage drops below a second protection voltage V2, the integrated starter generator 13 is returned to normal power generation, and then, the step SC is performed with the voltage first higher than the first protection voltage V1 as the starting point, and whether the number of times of execution of the protection mechanism is greater than or equal to a first specific number of times within a first specific time T1 is detected, if yes, the step SD is performed, if no, the step SC1 is performed to zero the first specific number of times and the step SA is returned.
Specifically, after the engine has started, the microcomputer unit 121 of the controller 12 monitors the generated voltage through the voltage sensing circuit 122 during the power generation process, and the control circuit 123 and the switching circuit 124 adjust the generated voltage and current, so that when the connection wire or the connector electrically connected to the battery drops, the generated voltage will fluctuate greatly, as shown in fig. 3, the excess voltages P1, P2 and P3 with voltages higher than the first protection voltage V1 are generated at different time points, respectively, when the first excess voltage P1 occurs, the voltage sensing circuit 122 detects that the voltage is higher than the first protection voltage V1, the controller 12 controls the switching circuit 124 to start the three-phase short circuit of the generator 13, the generated voltage will drop rapidly when the three-phase short circuit occurs, and the power generation will be resumed when the voltage is lower than the second protection voltage V2.
At this time, the number of times of executing the protection mechanism within the first specific time T1 is detected from the time point when the first excess voltage P1 occurs, if the number of times exceeds a first specific number of times (the setting of the first embodiment is 3 times), it is determined that the battery is in the off-line state, and the battery off-line mode is entered, and if the protection mechanism has been executed, but the protection mechanism is not executed again within the first specific time T1, or the protection mechanism is not executed to the first specific number of times in an accumulated manner, the first specific number of times is reset to zero, and then the step SA is returned to maintain the normal power generation mode.
When the battery is determined to be in the off-line state, the integrated starter generator 13 is controlled to generate power at a low power generation voltage V3 in step SD entering the off-line battery mode, and the protection mechanism is executed in step SD1 when the voltage is higher than the first protection voltage V1.
When the battery 11 is off-line, because the voltage fluctuation is large, the original generating voltage is reduced to the low generating voltage V3 to generate power when entering the battery off-line mode, so as to prevent the controller 12 or the entire vehicle electronic system from being damaged due to the unstable voltage surge, and in the battery off-line mode, if the voltage surge is still higher than the first protecting voltage V1, the protection mechanism is also executed to stabilize the voltage change, so that the generating voltage when the battery is off-line is maintained to enable the entire vehicle electronic system to normally operate, and the controller 12 or the entire vehicle electronic system cannot be damaged due to the overhigh voltage.
And finally, detecting a voltage reading value of a second specific time in the step SE1, judging whether the voltage reading value of each time in the voltage reading value of the second specific time is within +/-0.3V of a charging voltage, if so, judging that the battery 11 is normally connected, controlling the integrated starter generator 13 to recover normal power generation in the step SE5 and returning to the step SA, otherwise, judging that the battery 11 is abnormally connected, and returning to the step SD.
Overall, when the battery 11 is off-line, if the generated voltage fluctuation is too large to cause instability of the generated power, the voltage is too high to cause burning of the controller 12 or the entire car electronic system, the voltage is too low to cause normal operation of the controller 12 and the entire car electronic system, even the battery 11 is damaged due to too low voltage, therefore, through the determination process of the first embodiment of the present invention, the controller 12 can rapidly determine that a protection mechanism needs to be executed to stabilize the voltage by the voltage fluctuation when the battery 11 is off-line, and when the battery 11 returns to normal connection, the normal power generation mode can be rapidly and accurately returned to ensure normal operation of the entire car electronic system.
In the present invention, the first protection voltage V1 is set to 15.5V, the second protection voltage V2 is set to 14.6V, the first specific time T1 is set to 200 milliseconds (ms), the first specific number of times is set to 3 times, the charging voltage is set to 14.5V, and the low generated voltage V3 is set to 12.5V.
Referring to fig. 5, which is a schematic diagram of a determination process of a second embodiment of the motorcycle power control method of the present invention, and referring to fig. 1 to 3, the determination process of the second embodiment of the motorcycle power control method of the present invention is substantially the same as the determination process of the first embodiment, and the difference is that the battery offline determination method used in the second embodiment is different from that used in the first embodiment.
In the second embodiment, when the battery 11 is determined to be in the battery offline state, the step SD is performed to enter the battery offline mode, the integrated starter generator 13 is controlled to generate power at a low power generation voltage V3, the step SD1 is performed when the voltage is higher than the first protection voltage V1, the protection mechanism is performed, the step SE2 is performed to detect a voltage reading value within a second specific time, whether the voltage reading value is within ± 0.3V of a charging voltage each time in the voltage reading value within the second specific time is determined, if yes, the battery 11 is determined to be normally connected, the step SE5 is performed to control the integrated starter generator 13 to return to normal power generation and return to the step SA, and if not, the battery 11 is determined to be abnormally connected and return to the step SD.
Referring to fig. 6, which is a schematic diagram of a determination process of a third embodiment of the motorcycle power control method of the present invention, and referring to fig. 1 to 3, the determination process of the third embodiment of the motorcycle power control method of the present invention is substantially the same as that of the first embodiment, except that the battery offline determination method used in the third embodiment is different from that of the first embodiment.
In the third embodiment, when the battery 11 is determined to be in the off-line state, the step SD is performed to enter the off-line mode, the integrated starter generator 13 is controlled to generate power at a low power generation voltage V3, the step SD1 is performed when the voltage is higher than the first protection voltage V1, the protection mechanism is performed, the step SE3 is performed to calculate an average value of the detected voltage readings for a third specific time or a third specific time, whether the average value is within a charging voltage ± 0.2V is determined, if yes, the battery 11 is determined to be in the normal connection state, the step SE5 is performed to control the integrated starter generator 13 to return to the normal power generation state and return to the step SA, and if not, the battery 11 is determined to be in the abnormal connection state and return to the step SD.
Referring to fig. 7, which is a schematic diagram of a determination process of a fourth embodiment of the motorcycle power control method of the present invention, and referring to fig. 1 to 3, the determination process of the fourth embodiment of the motorcycle power control method of the present invention is substantially the same as the determination process of the first embodiment, except that the battery offline determination method used in the fourth embodiment is different from that of the first embodiment.
In the fourth embodiment, when the battery 11 is determined to be in the off-line state, the step SD is performed to enter the off-line mode, the integrated starter-generator 13 is controlled to generate power at a low generation voltage V3, the step SD1 is performed to execute the protection mechanism when the voltage is higher than the first protection voltage V1, and the step SE4 is performed to determine the variation S2If the difference is less than or equal to 0.5, the battery 11 is judged to be normally connected, the step SE5 is carried out to control the integrated starter generator 13 to recover the normal power generation and return to the step SA, if the difference is not less than the difference, the battery 11 is judged to be abnormally connected and return to the step SD, wherein the variation S of the fourth embodiment2For detecting a fourth specific number of voltage readings, the following relation (1) is used to calculate:
S2n is the fourth specific number of times, Xi is the voltage reading measured at each time in the fourth specific number of times,
average of all voltage readings measured in the fourth specific number of times.
In addition, in the first to fourth embodiments of the present invention, the second specific time is set to be 10 times to 100 times, the second specific time is set to be 10 milliseconds or 100 milliseconds, the third specific time is set to be 10 times or 100 times, the third specific time is set to be 10 milliseconds or 100 milliseconds, and the fourth specific time is set to be 10 times to 100 times, but the present invention is not limited thereto, and the time length setting and the time setting parameters can be changed according to the actual requirements.
It can be seen from the above that, the motorcycle power control method of the present invention can reduce the adverse effect of the unstable voltage on the controller 12 or the entire electronic system when the power generation voltage is unstable due to the battery 11 being offline, and after the controller 12 determines that the battery is in the offline state, the controller 12 will also execute the battery offline determination method to determine whether the battery 11 is normally connected, so as to recover the normal power generation voltage, thereby ensuring the normal operation of the entire electronic system of the motorcycle.
The above-mentioned embodiments are merely exemplary for convenience of description, and the claimed invention should not be limited to the above-mentioned embodiments, but should be limited only by the claims.
Claims (9)
1. A power control method of motorcycle is applied to a motorcycle with a battery, a controller and an integrated starting generator, the battery is electrically connected with the controller, and the controller is electrically connected with the integrated starting generator, the controller comprises a microcomputer unit, a voltage sensing circuit, a control circuit and a switch circuit which are electrically connected with each other, and the power control method of the motorcycle is characterized by comprising the following steps:
(A) the engine of the motorcycle is in a starting state, and the integrated starter generator provides power generation voltage;
(B) detecting whether the voltage is higher than a first protection voltage, if so, performing step (B1): executing a protection mechanism and performing the step (C), if not, returning to the step (A), wherein the protection mechanism controls the switching circuit to enable the three phases of the integrated starting generator to be short-circuited and cause voltage drop, and when the voltage drops to be lower than a second protection voltage, enabling the integrated starting generator to return to normal power generation;
(C) taking the voltage higher than the first protection voltage for the first time as a starting point, detecting whether the execution times of the protection mechanism is greater than or equal to a first specific time within a first specific time, if so, performing step (D), and if not, performing step (C1): the first specific times is reset to zero and returns to the step (A);
(D) entering a battery off-line mode, and controlling the integrated starting generator to generate power at a low power generation voltage; and
(E) using at least one battery off-line judging method to judge whether the battery is normally connected, if so, performing the step (E5): and (D) controlling the integrated starter generator to recover normal power generation and returning to the step (A), and if not, returning to the step (D).
2. A motorcycle power supply control method as claimed in claim 1, characterized in that the first protection voltage is 15.5V, the second protection voltage is 14.6V, the first specific time is 200 msec, and the first specific number of times is 3.
3. A motorcycle power supply control method as claimed in claim 1, wherein the switching circuit is a single-phase two-arm circuit, a single-phase four-arm circuit, a three-phase six-arm circuit or a three-phase configuration in which the number of parallel switches of each arm is increased.
4. A motorcycle power supply control method as claimed in claim 1, further comprising a step (D1) after the step (D): the protection mechanism is performed when the voltage is higher than the first protection voltage.
5. A motorcycle power control method as claimed in claim 1, wherein the at least one battery off-line judging method includes: detecting a voltage reading value of a second specific time, and judging whether the voltage reading value of each time in the voltage reading value of the second specific time is within +/-0.3V of a charging voltage, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected.
6. A motorcycle power control method as claimed in claim 1, wherein the at least one battery off-line judging method includes: detecting the voltage reading value in a second specific time, and judging whether the voltage reading value in the second specific time is within +/-0.3V of a charging voltage every time, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected.
7. A motorcycle power control method as claimed in claim 1, wherein the at least one battery off-line judging method includes: calculating the average value of the detected voltage readings within a third specific time or a third specific time, and judging whether the average value is within +/-0.2V of a charging voltage, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected.
8. A motorcycle power control method as claimed in claim 1, wherein the at least one battery off-line judging method includes: determining the amount of variation S2Whether the voltage is less than or equal to 0.5, if so, judging the battery to be normally connected, if not, judging the battery to be abnormally connected, and changing the quantity S2Satisfies the following relation (1):
S2n is a fourth specific number of times, Xi is the voltage reading measured in each of the fourth specific number of times,
9. a motorcycle power supply control method as claimed in any one of claims 5 to 7, characterized in that the charging voltage is 14.5V.
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| CN201811391968.6A CN111211611B (en) | 2018-11-21 | 2018-11-21 | Motorcycle power supply control method |
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| CN201811391968.6A CN111211611B (en) | 2018-11-21 | 2018-11-21 | Motorcycle power supply control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113547954A (en) * | 2021-07-26 | 2021-10-26 | 江门市大长江集团有限公司 | Battery electric quantity control method, equipment, control device and motorcycle |
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