CN111211611B - Motorcycle power supply control method - Google Patents
Motorcycle power supply control method Download PDFInfo
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- CN111211611B CN111211611B CN201811391968.6A CN201811391968A CN111211611B CN 111211611 B CN111211611 B CN 111211611B CN 201811391968 A CN201811391968 A CN 201811391968A CN 111211611 B CN111211611 B CN 111211611B
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- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000010248 power generation Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 239000007858 starting material Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 16
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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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 an engine state, and the integrated starting generator provides power generation voltage; (B) Detecting whether the voltage is higher than a first protection voltage, if yes, performing step (B1): executing a protection mechanism and performing the step (C), if not, returning to the step (A); (C) Detecting whether the execution times of the protection mechanism is greater than or equal to a first specific times within a first specific time, if yes, performing step (D), otherwise, performing step (C1): zeroing the first specified number of times and returning to step (a); (D) Entering a battery off-line mode, and controlling the integrated starting generator to generate electricity with a low power generation voltage; (E) And (3) judging whether the battery is normally connected by using at least one battery off-line judging method, if so, returning to normal power generation and returning to the step (A), and if not, returning to the step (D).
Description
Technical Field
The present invention relates to a power control method for a motorcycle, and more particularly to a power control method for a motorcycle, which uses a protection mechanism to adjust the power generation voltage of an integrated starter generator.
Background
The conventional personal vehicles generally comprise automobiles and motorcycles, the vehicles in the form of motorcycles are vehicles driven by engines and mainly use two-wheel, three-wheel or four-wheel vehicles in the handle operation direction, and the vehicles are the most commonly used vehicles at present due to the characteristics of simple operation, convenient action and low price.
Generally, a motorcycle using an integrated starter generator (ISG: integrated Starter Generator) is provided with a controller electrically connected to the integrated starter generator, wherein the controller controls battery energy to be transmitted to the integrated starter generator for driving a crankshaft and starting the engine when the engine is started, and the engine drives the integrated starter generator to rotate after the engine is started, at this time, the voltage of the integrated starter generator is higher than that of the battery, and the controller needs to convert the control mode to convert the generated energy of the integrated starter generator into proper voltage and current through rectifying, phase regulating and other modes, and then charges the battery.
The integrated starting generator is usually directly driven by an engine, the rotation speed of the integrated starting generator is synchronous with the engine, the higher rotation speed to ten thousand revolutions or even higher than ten thousand revolutions can be achieved, the generated voltage of the integrated starting generator is proportional to the rotation speed, and the generated voltage is generally higher than that of a battery, so that the voltage is controlled to be reduced to charge the battery.
Therefore, the present inventors devised a motorcycle power control method based on the spirit of the active invention, which uses a controller to execute a protection mechanism, can still have stable voltage to supply the normal operation and maintain the normal riding of the whole motorcycle under the condition that the 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 maintain the stable voltage for supplying the whole motorcycle power load, and finally the present invention is completed through several research experiments.
Disclosure of Invention
The main purpose of the invention is to solve the above problems and provide a motorcycle power control method, which uses a protection mechanism to adjust the power generation voltage of an integrated starting generator so as to stabilize the voltage of the whole motorcycle power load.
In order to achieve the above object, the power control method of the present invention is applied to a motorcycle having a battery, a controller and an integrated starter generator, wherein the battery is electrically connected with the controller, and the controller is electrically connected with the integrated starter 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, the power control method of the motorcycle comprises the following steps: (A) The engine of the motorcycle is in an engine state, and the integrated starting generator provides power generation voltage; (B) Detecting whether the voltage is higher than a first protection voltage, if yes, performing step (B1): executing a protection mechanism and performing the step (C), if not, returning to the step (A), wherein the protection mechanism enables the control switch circuit to enable the three phases of the integrated starting generator to be short-circuited and cause voltage reduction, and enables the integrated starting generator to return to normal power generation when the voltage is reduced to be lower than a second protection voltage; (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 times in a first specific time, if so, performing the step (D), and if not, performing the step (C1): zeroing the first specified number of times and returning to step (a); (D) Entering a battery off-line mode, and controlling the integrated starting generator to generate electricity with a low power generation voltage; (E) Judging whether the battery is normally connected or not by using at least one battery off-line judging method, if yes, performing the step (E5): and (3) controlling the integrated starting generator to return to normal power generation and returning to the step (A), if not, returning to the step (D).
Step (D) of the present invention may further comprise a step (D1): 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 may be 3.
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 from a three-phase structure.
The at least one battery offline judging method may include: detecting a voltage reading value of a second specific number of times, judging whether each voltage reading value is within +/-0.3V of a charging voltage in the voltage reading value of the second specific number of times, if yes, judging that the battery is normally connected, if not, judging that the battery is abnormally connected, and in addition, setting the second specific number of times to be between 10 and 100 times.
The at least one battery offline judging method may include: detecting a voltage reading value in a second specific time, judging whether each voltage reading value is within +/-0.3V of a charging voltage in the voltage reading value in the second specific time, if yes, judging that the battery is normally connected, if not, judging that the battery is abnormally connected, and in addition, setting the second specific time to be 10 milliseconds or 100 milliseconds.
The at least one battery offline judging method may include: calculating an average value of the detected voltage readings within a third specific time or a third specific time, judging whether the average value is within +/-0.2V of a charging voltage, if yes, judging that the battery is normally connected, if not, judging that the battery is abnormally connected, wherein the third specific time can be set to 10 times or 100 times, and the third specific time can be set to 10 milliseconds or 100 milliseconds.
The at least one battery offline judging method may include: determining the variation S 2 Whether the battery is smaller than or equal to 0.5, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected, wherein the variation S is the variation S 2 The following relation (1) is satisfied:
S 2 variation, n=a fourth specific number, xi=voltage readings measured each time in the fourth specific number,the average value of all the voltage readings measured in the fourth specific number of times, in addition, the fourth specific number of times may be set to between 10 times and 100 times.
The charging voltage may be 14.5V.
The foregoing summary and the following detailed description are exemplary in nature and are intended to provide further explanation of the invention as claimed in the appended claims, in order to make the above objects, features and advantages of the invention more readily apparent.
Drawings
Fig. 1 is a schematic diagram of an electric connection construction in a motorcycle to which the motorcycle power control method of the present invention is applied.
Fig. 2 is a schematic diagram showing an off-line configuration of a battery in a motorcycle to which the motorcycle power control method of the present invention is applied.
Fig. 3 is a schematic diagram of the power generation voltage variation of the motorcycle power control method of the present invention.
Fig. 4 is a schematic diagram of a judging flow of a first embodiment of the motorcycle power control method of the present invention.
Fig. 5 is a schematic diagram of a judging flow of a second embodiment of the motorcycle power control method of the present invention.
Fig. 6 is a schematic diagram of a judging flow of a third embodiment of the motorcycle power control method of the present invention.
Fig. 7 is a schematic diagram of a judgment flow of a fourth embodiment of the motorcycle power control method of the present invention.
Description of main reference numerals:
11. battery cell
12. Microcomputer unit of controller 121
122. Voltage sensing circuit 123 control circuit
124. Switching circuit
13. Integrated starting generator
Excess voltages of P1, P2 and P3
SA-SD step SB1 step
SC1 step SD1 step
SE1 to SE5 steps
T1 first specific time
V1 first protection voltage V2 second protection voltage
V3 low power generation voltage
Detailed Description
Referring to fig. 1 to 3, it is a schematic diagram of an electric 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 power generation voltage variation of the motorcycle power control method of the present invention, respectively.
The invention relates to a motorcycle power control method, which is applied to a motorcycle with a battery 11, a controller 12 and an integrated starting generator 13, wherein the battery 11 is electrically connected with the controller 12, the controller 12 is electrically connected with the integrated 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 the voltage is regulated through the control circuit 123 and the switch circuit 124, so that the whole motorcycle power load is kept stable, and the integrated starting generator 13 and a crankshaft of an engine of the motorcycle coaxially rotate and provide power generation voltage.
Fig. 1 is an electrical connection schematic diagram of a motorcycle in normal operation, fig. 2 is an electrical connection schematic diagram of a battery in an off-line state when a connection line or a connector of the electrical connection battery is dropped, and the like, and when the situation shown in fig. 2 occurs, the motorcycle power supply control method of the present invention protects the battery according to a change of a power generation voltage (shown in fig. 3), and prevents the power generation voltage from being out of control when the battery is off-line, thereby damaging the controller 12 or the entire vehicle electronic system.
Next, the motorcycle power control method of the present invention is described with reference to fig. 4, which is a schematic diagram of a judgment flow of a first embodiment of the motorcycle power control method of the present invention, and simultaneously, with reference to fig. 1 to 3.
A first embodiment of the motorcycle power control method of the present invention includes the steps of: step SA the engine of the motorcycle is in a starting state, and the integrated starting generator 13 provides power generation voltage; step SB detects whether the voltage is higher than a first protection voltage V1, if yes, step SB1 is executed to execute a protection mechanism and step SC is executed, 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, then, step SC is performed to detect whether the execution frequency of the protection mechanism is greater than or equal to a first specific frequency within a first specific time T1 with the voltage first higher than the first protection voltage V1 as a starting point, if yes, step SD is performed, if no, step SC1 is performed to return the first specific frequency to zero and step SA is returned.
In detail, after the engine is started, the microcomputer unit 121 of the controller 12 can monitor the generated voltage through the voltage sensing circuit 122 during the power generation process, and adjust the generated voltage and current through the control circuit 123 and the switch circuit 124, when the connection wire or the connector electrically connected to the battery falls, the generated voltage will generate larger fluctuation, as shown in fig. 3, the excessive voltages P1, P2 and P3 with voltages higher than the first protection voltage V1 are generated at different time points, when the first excessive 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 switch circuit 124 to firstly short-circuit the three phases of the integrated start generator 13, the generated voltage will rapidly drop during the three-phase short-circuit, and the generated voltage will be recovered when the voltage is lower than the second protection voltage V2.
At this time, starting from the point of time when the first excessive voltage P1 occurs, the number of times of execution of the protection mechanism within the first specific time T1 is detected, if the number exceeds a first specific number of times (the setting of the first embodiment is 3 times), it is determined that the battery is in an off-line state, the battery off-line mode is entered, 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 cumulatively for the first specific number of times, and after the first specific number of times is zeroed, the normal power generation mode is maintained in step SA.
When it is determined that the battery is in the off-line state, step SD is performed to enter the off-line battery mode, the integrated starter generator 13 is controlled to generate power at a low power generation voltage V3, and step SD1 is performed to perform the protection mechanism when the voltage is higher than the first protection voltage V1.
When the battery 11 is offline, since the voltage fluctuation is large, the original power generation voltage is reduced to the low power generation voltage V3 to generate power when the battery offline mode is entered, so that the controller 12 or the whole vehicle electronic system is prevented from being damaged due to the unstable voltage surge, and in the battery offline mode, if the voltage surge is still higher than the first protection voltage V1, a protection mechanism is also executed to stabilize the voltage variation, so that the power generation voltage is maintained when the battery is offline, the whole vehicle electronic system can normally operate, and the controller 12 or the whole vehicle electronic system is prevented from being damaged due to the excessive high voltage.
Finally, step SE1 is performed to detect a voltage reading value of a second specific number of times, and whether each voltage reading value is within ±0.3v of a charging voltage is determined in the voltage reading value of the second specific number of times, if yes, the battery 11 is determined to be normally connected, step SE5 is performed to control the integrated starter generator 13 to return to normal power generation and to return to step SA, if no, the battery 11 is determined to be abnormally connected and to return to step SD.
In general, when the battery 11 is offline, if the generated voltage fluctuates too much to cause instability of the generated power, the controller 12 or the whole vehicle electronic system may be burned out, and if the voltage is too low to cause the controller 12 and the whole vehicle electronic system to fail to operate normally, or even the battery 11 is damaged due to the too low voltage, the controller 12 can quickly judge that the protection mechanism needs to be executed to stabilize the voltage by the voltage fluctuation when the battery 11 is offline through the judgment process of the first embodiment of the invention, and when the battery 11 returns to normal connection, the normal power generation mode can be quickly and accurately returned to ensure normal operation of the whole vehicle 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 power generation voltage V3 is set to 12.5V, but the present invention is not limited thereto, and parameters such as voltage setting, time length setting, and number of times setting may be changed according to actual needs.
Referring to fig. 5, which is a schematic diagram illustrating a judging flow of a second embodiment of the power control method for a motorcycle according to the present invention, and also referring to fig. 1 to 3, the judging flow of the second embodiment of the power control method for a motorcycle according to the present invention is substantially the same as that of the first embodiment, except that the off-line judging method for the battery used in the second embodiment is different from that in the first embodiment.
In the second embodiment, when the battery 11 is determined to be in the off-line state, the step SD is performed to enter the off-line battery mode, the integrated starter generator 13 is controlled to generate power at a low power generation voltage V3, the step SD1 is performed to execute the protection mechanism when the voltage is higher than the first protection voltage V1, finally, the step SE2 is performed to detect a voltage reading value within a second specific time, and to determine 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, 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 to return to the step SA, if no, the battery 11 is determined to be abnormally connected and to return to the step SD.
Referring to fig. 6, which is a schematic diagram illustrating a judging flow of a third embodiment of the power control method for a motorcycle according to the present invention, and also referring to fig. 1 to 3, the judging flow of the third embodiment of the power control method for a motorcycle according to the present invention is substantially the same as that of the first embodiment, except that the off-line judging method for the battery used in the third embodiment is different from that in 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 battery mode, the integrated starter generator 13 is controlled to generate power at a low power 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 finally, the step SE3 is performed to calculate a third specific number of times or an average value of the detected voltage readings within a third specific time, and determine whether the average value is within a charging voltage ±0.2v, 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 the normal power generation mode and return to the step SA, if no, the battery 11 is determined to be abnormally connected and return to the step SD.
Referring to fig. 7, which is a schematic diagram illustrating a judging flow of a fourth embodiment of the power control method for a motorcycle according to the present invention, and also referring to fig. 1 to 3, the fourth embodiment of the power control method for a motorcycle according to the present invention is substantially the same as the judging flow of the first embodiment, except that the battery offline judging method used in the fourth embodiment is different from 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 power 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 finally the step SE4 is performed to determine the variation S 2 If the power is less than or equal to 0.5, if yes, the battery 11 is judged to be normally connected, and step SE5 is performed to control the integrated starter generator 13 to return to normal power generation and returnStep SA, if not, judging that the battery 11 is abnormally connected, returning to step SD, wherein the variation S of the fourth embodiment 2 To detect a fourth voltage reading of a specific number of times, the voltage reading is calculated by the following relation (1):
S 2 variation, n=fourth specific number, xi=voltage reading measured each time in the fourth specific number,the 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 10 to 100 times, the second specific time is set to 10 ms or 100 ms, the third specific time is set to 10 or 100 times, the third specific time is set to 10 ms or 100 ms, and the fourth specific time is set to 10 to 100 times, but not limited thereto, the parameters such as the time length setting and the time setting may be changed according to the actual requirement, and the battery offline determination methods used in the first to fourth embodiments are not limited to be used alone, and the battery offline determination methods of the first to fourth embodiments may be used in cooperation with each other according to the actual requirement, thereby being capable of more precisely determining the voltage change situation and accurately determining whether the battery 11 is normally connected.
As can be seen from the above description, the motorcycle power control method of the present invention can reduce the adverse effect of the unstable voltage on the controller 12 or the whole vehicle electronic system when the power generation voltage is unstable due to the offline battery 11, and after the controller 12 determines that the battery is in the offline state, the controller 12 also executes the battery offline determination method to determine whether the battery 11 is normally connected, so as to restore the normal power generation voltage, thereby ensuring the normal operation of the whole vehicle electronic system of the motorcycle.
The above embodiments are merely illustrative, and the claimed invention should not be limited to the above embodiments, but rather should be construed according to the claims.
Claims (9)
1. The power supply control method for 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 is characterized in that the power supply control method for motorcycle comprises the following steps:
(A) The engine of the motorcycle is in an engine state, and the integrated starting generator provides power generation voltage;
(B) Detecting whether the generated voltage is higher than a first protection voltage, if yes, performing step (B1): executing a protection mechanism and performing the step (C), if not, returning to the step (A), wherein the protection mechanism is to control the switch circuit to enable the three phases of the integrated starting generator to be short-circuited and cause the generation voltage to drop, and enable the integrated starting generator to return to normal generation when the generation voltage drops below a second protection voltage;
(C) Taking the power generation voltage higher than the first protection voltage for the first time as a starting point, detecting whether the execution times of the protection mechanism are greater than or equal to a first specific times in a first specific time, if so, performing the step (D), and if not, performing the step (C1): zeroing the first specified number of times and returning to step (a);
(D) Entering a battery off-line mode, and controlling the integrated starting generator to generate electricity with a low power generation voltage; and
(E) Judging whether the battery is normally connected or not by using at least one battery off-line judging method, if yes, performing the step (E5): and (3) controlling the integrated starting generator to return to normal power generation and returning to the step (A), if not, returning to the step (D).
2. The method of claim 1, wherein the first protection voltage is 15.5V, the second protection voltage is 14.6V, the first specified time is 200 ms, and the first specified number of times is 3.
3. The method according to 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 configuration in which the number of parallel switches per arm is increased by a three-phase structure.
4. The motorcycle power supply control method according to claim 1, further comprising a step (D1) after the step (D): the protection mechanism is executed when the power generation voltage is higher than the first protection voltage.
5. The motorcycle power control method according to claim 1, wherein the at least one battery off-line judging method comprises: detecting a second specific number of power generation voltage readings, judging whether each power generation voltage reading is within +/-0.3V of a charging voltage in the second specific number of power generation voltage readings, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected.
6. The motorcycle power control method according to claim 1, wherein the at least one battery off-line judging method comprises: detecting a power generation voltage reading value in a second specific time, judging whether the power generation voltage reading value in the second specific time is within +/-0.3V of a charging voltage each time, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected.
7. The motorcycle power control method according to claim 1, wherein the at least one battery off-line judging method comprises: calculating the average value of the read values of the detected power generation voltage in a third specific time or a third specific time, 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. The motorcycle power control method according to claim 1, wherein the at least one battery off-line judging method comprises: determining the variation S 2 Whether the battery is smaller than or equal to 0.5, if so, judging that the battery is normally connected, and if not, judging that the battery is abnormally connected, wherein the variation S is the variation S 2 The following relation (1) is satisfied:
S 2 variation, n=a fourth specific number, xi=the power generation voltage reading measured each time in the fourth specific number,
9. the motorcycle power supply control method according to 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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| CN107069850A (en) * | 2017-03-20 | 2017-08-18 | 东莞市仲康电子科技有限公司 | A kind of automobile starting power supply wiring folder, which comes off, to be protected and reverse connecting protection system and method |
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- 2018-11-21 CN CN201811391968.6A patent/CN111211611B/en active Active
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| CN101174715A (en) * | 2007-09-28 | 2008-05-07 | 深圳先进技术研究院 | Power battery management system with control and protection function and method thereof |
| JP2010220445A (en) * | 2009-03-18 | 2010-09-30 | Autonetworks Technologies Ltd | Power supply controller for vehicle |
| CN204271684U (en) * | 2014-11-21 | 2015-04-15 | 何远强 | The startup battery pack that a kind of novel height ensures |
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