CN105298709A - Engine starting control system and control method - Google Patents
Engine starting control system and control method Download PDFInfo
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- CN105298709A CN105298709A CN201510620834.7A CN201510620834A CN105298709A CN 105298709 A CN105298709 A CN 105298709A CN 201510620834 A CN201510620834 A CN 201510620834A CN 105298709 A CN105298709 A CN 105298709A
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Abstract
The invention discloses an engine starting control system and a control method. The system comprises a starting switch, a brake switch, a starting request judging module, a CAN bus, a starting control module, a starter, a starting relay and a 12 V battery power supply; and needed signals comprise a gear signal, an antitheft authentication result signal, an engine rotating speed signal, a cooling water temperature signal and a battery voltage signal. The control method comprises the starting request judgment, the starting beginning, the starting result judgment and the starting related fault diagnosis. The engine starting control system and the control method can more effectively protect the starter when realizing a more convenient and quicker vehicle starting mode for drivers, so that the reliability of a vehicle starting system is improved; and meanwhile, as related faults of the starting system are diagnosed, customer service managers can quickly perform related fault maintenance for the starting system.
Description
Technical field
The invention belongs to vehicle starting control system field, be specifically related to engine start control system and controlling method.
Background technique
Along with the fast development of automobile, the application of automotive electronics on automobile also gets more and more, more and more high-end, and the intelligent demand of people to vehicle is also more and more higher; Traditional car engine start is, by driver, key is screwed to start gear, connect starter relay, starter motor is operated, and then drive engine start, this starting method is before engine start success, and need driver to twist key is not put always, if there occurs starter motor stall fault when starting, because user is ignorant and can twist key always, starter power will be connected always, then may damage the generation that starter motor even may cause burning car event.And along with the raising of people's living standard; people more wish the engine start profile realizing a kind of intelligent and safe, and namely driver only needs to click starting button, and automatically can complete engine start; automatically realize the protection of starter motor simultaneously, extend starter motor working life.
The patent of invention close with content of the present invention has a kind of vehicle launch control system of Biyadi Co Ltd and vehicle launch control system (application publication number CN101734161A) two parts of patent of invention of controlling method (application publication number CN101767588A) and Guangyong Industry Co., Ltd respectively; Although two parts of patent of invention are all the same with this patent, be all the summary of the invention of vehicle launch control system and controlling method aspect thereof, there is basic difference with the present invention in it in concrete problem to be solved.
The vehicle launch control system of Biyadi Co Ltd and controlling method, be to provide a kind of hybrid vehicle when automobile power source is closed, and prevents the energy-storage travelling wave tube in power drive part from destroying the system and method for other circuit.The vehicle launch control system of Guangyong Industry Co., Ltd, be by cut off start time non-starting associated component power supply, reduce use the electrical load of storage battery with this, raising storage battery starting capability, and then reach vehicle can by the object of starting easily.Above two technology are all directly started by rigid line switch control rule.
Summary of the invention
The object of the present invention is to provide a kind of engine start control system and controlling method thereof, what driver only need click switch starter just can Successful startup motor, the control of starter motor was controlled through a series of Logic judgment afterwards by controller, its realize for driver a kind of more convenient, more efficiently while start mode, the more effective protection starting machine of energy, extend starter motor working life, improve the reliability of vehicle start system, simultaneously by the diagnosis to starting system dependent failure, make to carry out after sale the relevant breakdown maintenance of starting system fast.
The present invention is by the following technical solutions:
A kind of engine start control system, realizes primarily of switch starter, brake switch, start request judge module, CAN, starting control module, starter motor, starter relay and 12V battery power.For realizing a key start-up function, its signal needed has: gear signal, antitheft authentication result signal, engine rotational speed signal, cooling water temperature signal, cell voltage signal.
In native system, switch starter and being directly connected by vehicle wire between brake switch with start request judge module, then realize start request signal by CAN between start request judge module and starting control module and exit the transmission of activating signal, and then realizing the co-controlling to starter relay.
Starter relay and start request judge module and starting between control module is directly connected by vehicle wire.
Starter relay, directly to be connected by vehicle wire between 12V battery power and starter motor.
For MT vehicle, by vehicle wire, gear signal is passed to starting control module 10 by driving switch; In embodiments of the invention, start control module integrated in control unit of engine, therefore antitheft authentication result signal, engine rotational speed signal, cooling water temperature signal and cell voltage signal are all direct is directly passed to starting control module by control unit of engine other function logic modules inner.
In native system, because start request judge module needs to detect that switch starter is pressed and brake switch is operated simultaneously, just think that driver has start request, just can enter next step start-up function; So just achieve the safe starting of motor, the generation of vehicle preshoot dangerous problem when avoiding engine start.
Meanwhile, start control module except needing to receive start request signal that start request judge module sends, also need antitheft certification to be in P/N shelves by, Transmission gear and motor is current is in outage state; So namely, prevent starter motor to damage because of the engine gear directly accessed in running, when in turn ensure that engine start, speed changer is in P/N shelves, reach the object of safe starting, further enhancing the anti-theft feature of vehicle simultaneously, namely, in the unsanctioned situation of antitheft certification, starter motor can not drive engine start.
In addition; starting control module achieves vehicle launch success, the accurate judgement of starting time-out and starting stall according to engine rotational speed signal, cooling water temperature signal, cell voltage signal; achieve the accurate control of starter motor; reach the object of protection starting machine, extend the working life of starter motor.
The control procedure of this control system comprises:
Start request judges: start request judge module is according to the start request of the condition adjudgement driver of switch starter and brake switch, when the start request of driver being detected, start request judge module just controls high-end (the connection battery power) of starter relay, and gives starting control module by CAN by the start request Signal transmissions of driver.
Start to start: after starting control module receives start request signal, just carry out starting conditions judgement according to gear signal 5, antitheft authentication result signal, engine rotational speed signal, if starting conditions meets, just control the low side (ground connection) of starter relay, now starter relay adhesive, starter motor entry into service, starts and starts;
Start result to judge: starting control module needs according to engine rotational speed signal, cooling water temperature signal, and cell voltage signal judges starting result, when detecting that motor has started successfully, or start time-out, or after starting stall, the low side that will disconnect starter relay controls, activating signal will be exited by CAN simultaneously and issue start request judge module, after start request judge module receives and exits activating signal, the high-end control of starter relay will be disconnected, this proceed-to-send.
Start dependent failure diagnosis; Start control module and also will carry out the diagnosis of starter relay open fault, starter relay adhesion fault diagnosis, starter relay low side shorted to earth fault diagnosis, starter relay low side to power supply short circuit fault diagnosis, the diagnosis of starter relay low side open fault, starter relay is high-end diagnoses and starter motor fault diagnosis power supply short circuit fault diagnosis, the diagnosis of starter relay high-end shorted to earth fault diagnosis, the high-end open fault of starter relay; When starting control module and the relevant fault of above starting being detected, will fault be preserved, and make to read dependent failure information by diagnostic device after sale, instruct starting system breakdown maintenance.
Engine starting system of the present invention and controlling method thereof realize for driver a kind of more convenient, more efficiently while vehicle launch mode; the more effective protection starting machine of energy; improve the reliability of vehicle start system; simultaneously by the diagnosis to starting system dependent failure, make to carry out after sale the relevant breakdown maintenance of starting system fast.
Accompanying drawing explanation
Figure 1 shows that logic diagram of the present invention;
Figure 2 shows that start request judge module schematic flow sheet of the present invention;
Figure 3 shows that the present invention starts control module schematic flow sheet.
Embodiment
Below in conjunction with Figure of description, the present invention is described further.
See Fig. 1, engine starting system realizes primarily of switch starter 1, brake switch 2, start request judge module 3, CAN 4, starting control module 10, starter motor 11, starter relay 12 and 12V battery power 13.For realizing function of the present invention, its signal needed has: gear signal 5, antitheft authentication result signal 6, engine rotational speed signal 7, cooling water temperature signal 8, cell voltage signal 9.
Wherein switch starter 1 and being directly connected by vehicle wire between brake switch 2 with start request judge module 3, then realize start request signal by CAN 4 between start request judge module 3 and starting control module 10 and exit the transmission of activating signal, and then achieving the co-controlling to starter relay 12.Starter relay 12 and start request judge module 3 and starting between control module 10 is directly connected by vehicle wire.Starter relay 12, directly to be connected by vehicle wire between 12V battery power 13 and starter motor.For MT vehicle, by vehicle wire, gear signal 5 is passed to starting control module 10 by driving switch; In the present embodiment, starting control module 10 is integrated in control unit of engine, and therefore all direct being directly passed to by control unit of engine other function logic modules inner of antitheft authentication result signal 6, engine rotational speed signal 7, cooling water temperature signal 8 and cell voltage signal starts control module 10.
Because start request judge module 3 needs to detect that switch starter 1 is pressed and brake switch 2 is operated simultaneously, just think that driver has start request, just can enter next step start-up function, so just achieve the safe starting of motor, the generation of vehicle preshoot dangerous problem when avoiding engine start;
Start control module 10 except needing to receive start request signal that start request judge module 3 sends, also need antitheft certification to be in P/N shelves by, Transmission gear and motor is current is in outage state; So namely, prevent starter motor to damage because of the engine gear directly accessed in running, when in turn ensure that engine start, speed changer is in P/N shelves, reach the object of safe starting, further enhancing the anti-theft feature of vehicle simultaneously, namely, in the unsanctioned situation of antitheft certification, starter motor can not drive engine start.
Starting control module 10 achieves vehicle launch success, the accurate judgement of starting time-out and starting stall according to engine rotational speed signal 7, cooling water temperature signal 8, cell voltage signal 9; achieve the accurate control of starter motor; reach the object of protection starting machine, extend the working life of starter motor.
See Fig. 2 and Fig. 3, the controlling method of a key start-up function of the present embodiment comprises following steps:
One, start request judge module (see Fig. 2):
[001] the high-end state of a control of relay judges: be in if current in the high-end control of relay, then directly arrived [006], otherwise to [002]
[002] switch starter and brake switch state read;
[003] driver's start request judges:
(1) switch starter is pressed;
(2) brake is stepped on;
When above two conditions meet simultaneously, being just judged as that driver is current has start request;
Wherein switch starter is pressed and steps on brake again following two kinds of decision logics respectively, and respectively in table 1 and table 2, concrete vehicle is chosen wherein one according to respective demand and applied, and the present embodiment uses the logic of employing scheme two;
Table 1 switch starter is pressed judgement
Table 2 brake is operated judgement
As detected, driver has start request, then arrive [004], otherwise terminates this program cycle;
[004] starter relay high-end (connection battery power) is controlled:
[005] start request signal is dealt into CAN:
[006] exit start request to judge: exit start request signal if read from CAN, then arrive [007], otherwise terminate this program cycle;
[007] the high-end control of starter relay (disconnection battery power) is exited;
Two, control module (see Fig. 3) is started:
[001] signal-obtaining: read gear signal, antitheft authentication result signal, coolant temperature signal, engine rotational speed signal, cell voltage signal, start request signal;
[002] engine start condition adjudgement: if current being in starting process of motor (has namely been in the control of starter relay low side), then arrive [006], otherwise to [003];
[003] start request judges: if read start request signal from CAN, then arrive [004], otherwise terminates this this program cycle;
[004] starting conditions judges:
(1) Transmitted chains is thrown off:
For AT vehicle, be exactly gear signal=P shelves or N shelves;
For MT vehicle, be exactly that gear signal=N shelves or clutch pedal are operated;
Wherein the gear signal of AT vehicle from the gear signal of TCU, MT vehicle from driving switch or clutch bottom switch;
(2) antitheft certification is passed through: antitheft authentication result signal=1; Antitheft authentication result signal is from the antitheft authentication module of control unit of engine;
(3) motor is in outage state: engine rotational speed signal=0rpm; Engine rotational speed signal is from engine rotation speed sensor;
When above 3 conditions meet simultaneously, then think that starting conditions meets, to [005], otherwise terminate this program cycle;
[005] starter relay low side (ground connection) is controlled;
[006] exit starting conditions to judge:
(1) start successfully: engine rotational speed signal 7>N
start(wherein N
startrelevant to cooling water temperature signal 8, temperature its value lower is larger, N
startconcrete numerical value by demarcate determine; The number range of cooling water temperature signal 8 is :-40 DEG C ~ 150 DEG C; N
startnumber range be: 0rpm ~ 1500rpm.)；
(2) time-out is started: starting time t>T
start(start control module 10 timing starting time t, T from when controlling the low side of starter relay 12
startbe correlated with cooling water temperature signal 8, temperature is lower, and its value is larger, illustrates that the starting time needed is longer, T
startconcrete numerical value by demarcate determine, its number range is: 0 second ~ 50 seconds.)；
(3) stall is started:
The low side that A, starting control module 10 have started starter relay 12 controls;
B, the difference >U of cell voltage signal 9 of adjacent twice
△(U
△numerical value by demarcate determine, its number range is: 0V ~ 12V.)。
When above A, B two conditions meet simultaneously, start control module 10 and just judge that starter motor there occurs stall;
When above arbitrary condition meets (start successfully, or start time-out, or start stall), arrive [007], otherwise terminate this cyclic program;
[007] exit starter relay low side to control;
[008] activating signal will be exited and be dealt into CAN;
The present embodiment requires that startup module 9 carries out fault diagnosis to this starting system, and timely storage failure code, instruct after-sales service;
The starting system dependent failure that the present embodiment requires is as follows:
Starter relay open fault;
Starter relay adhesion fault;
Starter relay is high-end to power supply short circuit fault;
The high-end shorted to earth fault of starter relay;
The high-end open circuit fault of starter relay;
Starter relay low side is to power supply short circuit fault;
Starter relay low side shorted to earth fault;
Starter relay low side open circuit fault;
Starter motor fault;
In the present embodiment, start request judge module 3 and starting control module 10 are realized by different hardware, carry out start request signal and exit the transmission of activating signal between them by CAN.
Claims (8)
1. an engine start control system, comprises switch starter (1), brake switch (2), start request judge module (3), CAN (4), starts control module (10), starter motor (11), starter relay (12) and 12V battery power (13);
Wherein switch starter (1) and being directly connected by vehicle wire between brake switch (2) with start request judge module (3), then realize start request signal by CAN (4) between start request judge module (3) and starting control module (10) and exit the transmission of activating signal, and then realizing the co-controlling to starter relay (12); Starter relay (12) and start request judge module (3) and starting between control module (10) is directly connected by vehicle wire; Starter relay (12), directly to be connected by vehicle wire between 12V battery power (13) and starter motor; Gear signal (5) will be passed to by vehicle wire starts control module (10); Starting control module (10) is integrated in control unit of engine, and antitheft authentication result signal (6), engine rotational speed signal (7), cooling water temperature signal (8) and cell voltage signal (9) are directly directly passed to by control unit of engine built-in function logic module and start control module (10);
Described start request judge module (3) needs to detect that switch starter (1) is pressed and brake switch (2) is operated simultaneously, just thinks that driver has start request, just can enter next step start-up function;
Described starting control module (10) is except the start request signal needing to receive start request judge module (3) and send, also need antitheft certification to be in P/N shelves by, Transmission gear and motor is current is in outage state, starter motor just drives engine start;
Described starting control module (10) realizes vehicle launch success, the judgement of starting time-out and starting stall according to engine rotational speed signal (7), cooling water temperature signal (8) cell voltage signal (9).
2. engine start control system according to claim 1, is characterized in that, described engine start controls needs and carries out:
Start request judges: start request judge module (3) is according to the start request of the condition adjudgement driver of switch starter (1) and brake switch (2), when the start request of driver being detected, start request judge module (3) controls the high-end of starter relay (12), namely connect battery power, and give starting control module (10) by CAN (4) by the start request Signal transmissions of driver;
Start to start: after starting control module (10) receives start request signal, starting conditions judgement is carried out according to gear signal (5), antitheft authentication result signal (6), engine rotational speed signal (7), if starting conditions meets, control the low side of starter relay (12), i.e. ground connection, now starter relay adhesive, starter motor (11) entry into service, starts and starts;
Start result to judge: starting control module (10) needs according to engine rotational speed signal (7), cooling water temperature signal (8), and cell voltage signal (9) judges starting result, when detecting that motor has started successfully, or start time-out, or after starting stall, namely the low side disconnecting starter relay (12) controls, activating signal will be exited by CAN (4) simultaneously and issue start request judge module (3), after start request judge module (3) receives and exits activating signal, disconnect the high-end control of starter relay (12), terminate this to start.
3. engine start control system according to claim 1, is characterized in that, also comprises:
Start dependent failure diagnosis: (carry out the diagnosis of starter relay open fault, starter relay adhesion fault diagnosis, starter relay low side shorted to earth fault diagnosis, starter relay low side are high-end to power supply short circuit fault diagnosis, the diagnosis of starter relay high-end shorted to earth fault diagnosis, the diagnosis of starter relay high-end open fault and starter motor fault diagnosis to power supply short circuit fault diagnosis, the diagnosis of starter relay low side open fault, starter relay to start control module; When starting control module and the relevant fault of above starting being detected, will fault be preserved, and make to read dependent failure information by diagnostic device after sale, instruct starting system breakdown maintenance.
4. a controlling method for engine start control system, it comprises the following steps:
(1), start request judges:
Whether start request judge module has start request according to the condition adjudgement driver of switch starter and brake switch;
Start request decision logic is as follows:
(1.1) switch starter is pressed;
(1.2) brake is stepped on;
When above two conditions meet simultaneously, being judged as that driver is current has start request;
(2), control is started:
When starting control module and receiving start request signal, must starting conditions judgement be carried out, only when starting conditions meets, just allow to start;
Starting conditions decision logic is as follows:
(2.1) Transmitted chains is thrown off:
For AT vehicle, be exactly gear signal=P shelves or N shelves;
For MT vehicle, be exactly that gear signal=N shelves or clutch pedal are operated;
Wherein the gear signal of AT vehicle from the gear signal of TCU, MT vehicle from driving switch or clutch bottom switch;
(2.2) antitheft certification is passed through: antitheft authentication result signal=1; Antitheft authentication result signal is from the antitheft authentication module of control unit of engine;
(2.3) motor is in outage state: engine rotational speed signal=0rpm; Engine rotational speed signal is from engine rotation speed sensor;
When starting control module and receiving start request signal, if above three conditions meet simultaneously, then think that starting conditions meets, now start control module and just will control the low side of starter relay, now starter relay adhesive, motor starts to start;
(3) start result to judge:
After motor has started starting, starting control module has also needed to monitor starting process, needs to judge starting result;
(3.1) start and successfully judge: engine rotational speed signal >N
start;
(3.2) start time-out to judge: starting time t>T
start;
(3.3) start stall to judge:
The low side that A, starting control module have started starter relay controls;
B, the difference >U of cell voltage signal of adjacent twice
△, U
△concrete numerical value determined by demarcation, its number range is: 0V ~ 12V;
When above A, B two conditions meet simultaneously, start control module and just judge that starter motor there occurs stall;
When starting control module detects that motor has started successfully, or start time-out, or after starting stall, the low side that can disconnect starter relay controls, activating signal will be exited by CAN simultaneously and issue start request judge module, after start request judge module receives and exits activating signal, the high-end control of starter relay will be disconnected, terminate this and start.
5. the controlling method of engine start control system according to claim 1, is characterized in that, also comprises,
Start dependent failure diagnosis: startup module needs to carry out fault diagnosis to this starting system, and timely storage failure code, instruct after-sales service; Starting system dependent failure comprises:
Starter relay open fault;
Starter relay adhesion fault;
Starter relay is high-end to power supply short circuit fault;
The high-end shorted to earth fault of starter relay;
The high-end open circuit fault of starter relay;
Starter relay low side is to power supply short circuit fault;
Starter relay low side shorted to earth fault;
Starter relay low side open circuit fault;
Starter motor fault.
6. the controlling method of the engine start control system according to claim 4 or 5, is characterized in that, wherein switch starter is pressed and steps on brake has again following two kinds of decision logics, respectively respectively in table 1 and table 2:
Table 1 switch starter is pressed judgement
Table 2 brake is operated judgement
7. the controlling method of the engine start control system according to claim 4 or 5, is characterized in that, wherein N
startwith cooling water temperature signal correction, temperature its value lower is larger, N
startconcrete numerical value by demarcate determine; The number range of cooling water temperature signal is :-40 DEG C ~ 150 DEG C; N
startnumber range be: 0rpm ~ 1500rpm.
8. the controlling method of the engine start control system according to claim 4 or 5, is characterized in that, wherein starts control module timing starting time t, T from when controlling the low side of starter relay
startwith cooling water temperature signal correction, temperature is lower, and its value is larger, illustrates that the starting time needed is longer, T
startconcrete numerical value by demarcate determine, its number range is: 0 second ~ 50 seconds.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620834.7A CN105298709A (en) | 2015-09-25 | 2015-09-25 | Engine starting control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510620834.7A CN105298709A (en) | 2015-09-25 | 2015-09-25 | Engine starting control system and control method |
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| CN105298709A true CN105298709A (en) | 2016-02-03 |
Family
ID=55196387
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| CN201510620834.7A Pending CN105298709A (en) | 2015-09-25 | 2015-09-25 | Engine starting control system and control method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105971797A (en) * | 2016-07-07 | 2016-09-28 | 安徽江淮汽车股份有限公司 | Automobile starting protection method and system |
| CN106240362A (en) * | 2016-08-03 | 2016-12-21 | 重庆长安汽车股份有限公司 | A kind of automobile start control system and control method |
| CN107035595A (en) * | 2017-04-05 | 2017-08-11 | 奇瑞汽车股份有限公司 | Automobile starter guard method and its method of testing |
| CN107165756A (en) * | 2017-06-28 | 2017-09-15 | 上汽通用汽车有限公司 | A kind of automobile start-stop electrical power guard method and system |
| CN111188712A (en) * | 2019-11-29 | 2020-05-22 | 潍柴动力股份有限公司 | Starter exiting method and device, storage medium and terminal |
| CN114537138A (en) * | 2022-04-26 | 2022-05-27 | 杭叉集团股份有限公司 | Control method and control system for safe starting of static pressure transmission industrial vehicle |
| CN114544183A (en) * | 2022-02-24 | 2022-05-27 | 湖南道依茨动力有限公司 | Starter fault diagnosis method and device, engine starting system and engineering equipment |
| CN114576060A (en) * | 2022-03-28 | 2022-06-03 | 浙江舟山市匠驱动力技术有限公司 | Control method and device for hybrid power starting of motorcycle and electronic equipment |
| CN114962111A (en) * | 2022-04-27 | 2022-08-30 | 一汽奔腾轿车有限公司 | Engine starting failure troubleshooting method |
| CN116653854A (en) * | 2023-07-11 | 2023-08-29 | 浙江春风动力股份有限公司 | motorcycle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971797A (en) * | 2016-07-07 | 2016-09-28 | 安徽江淮汽车股份有限公司 | Automobile starting protection method and system |
| CN106240362A (en) * | 2016-08-03 | 2016-12-21 | 重庆长安汽车股份有限公司 | A kind of automobile start control system and control method |
| CN107035595A (en) * | 2017-04-05 | 2017-08-11 | 奇瑞汽车股份有限公司 | Automobile starter guard method and its method of testing |
| CN107165756A (en) * | 2017-06-28 | 2017-09-15 | 上汽通用汽车有限公司 | A kind of automobile start-stop electrical power guard method and system |
| CN111188712A (en) * | 2019-11-29 | 2020-05-22 | 潍柴动力股份有限公司 | Starter exiting method and device, storage medium and terminal |
| CN114544183A (en) * | 2022-02-24 | 2022-05-27 | 湖南道依茨动力有限公司 | Starter fault diagnosis method and device, engine starting system and engineering equipment |
| CN114576060A (en) * | 2022-03-28 | 2022-06-03 | 浙江舟山市匠驱动力技术有限公司 | Control method and device for hybrid power starting of motorcycle and electronic equipment |
| CN114537138A (en) * | 2022-04-26 | 2022-05-27 | 杭叉集团股份有限公司 | Control method and control system for safe starting of static pressure transmission industrial vehicle |
| CN114962111A (en) * | 2022-04-27 | 2022-08-30 | 一汽奔腾轿车有限公司 | Engine starting failure troubleshooting method |
| CN116653854A (en) * | 2023-07-11 | 2023-08-29 | 浙江春风动力股份有限公司 | motorcycle |
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Application publication date: 20160203 |