A method and system for quick upshift of a motorcycle engine system

Abstract

The application provides a quick upshift method and system of a motorcycle engine system, and relates to the technical field of motorcycle manual gearbox systems, and comprises the following steps: S1, when a gear sensor detects that a shift lever is lifted, real-time gear and target gear are obtained, and an upshift signal is sent; S2, an electronic control unit determines whether the upshift signal is continuously monitored: if yes, the process proceeds to S3; if no, the process returns to S1; S3, the electronic control unit performs open-loop control, so that the engine system loses power; S4, the electronic control unit obtains real-time engine speed and target speed, processes the real-time engine speed and the target speed to obtain a torque reduction coefficient, adjusts the ignition angle according to the torque reduction coefficient, and adjusts the real-time engine speed to the target speed, so as to complete the quick upshift of the motorcycle. The beneficial effect is that the system does not need to be installed with external devices, the electronic control unit actively responds to reduce the speed during the upshift process, the accelerator and the clutch do not need to be operated, the gear shifting time is shortened, the operation is simple, and the driving experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motorcycle manual gearbox system, and particularly relates to a quick upshift method and system of a motorcycle engine system. BACKGROUND

[0002] The motorcycle manual gearbox system is a gear ratio fixed type shifting system. When a driver needs to upshift, the driver first releases the throttle, grabs the clutch, separates the gearbox from the engine power, synchronizes the input shaft and the output shaft of the gearbox in speed, and then performs the gear shifting operation. The operation process is completed by the driver and the transmission mechanical structure, and the electronic control unit has no relevant control and intervention.

[0003] The same type of quick gear shifting system on the market is composed of a gear shifting sensor, a controller and a wire harness, and is independent of the engine electronic control system. When the sensor senses the gear shifting action of the foot, the controller controls the high-pressure pack to be ignited through the wire harness, and the gear is instantly engaged at this time.

[0004] Since the motorcycle manual gearbox system needs the driver to perform complex operations during the upshift process, the entire upshift process is relatively long, and the quality of gear shifting and the driving experience are affected. The existing quick gear shifting system on the market needs to install a separate controller, and can only control the ignition, but cannot control the fuel injection and the ignition angle reduction PI control. SUMMARY

[0005] In view of the problems in the prior art, the present application provides a quick upshift method of a motorcycle engine system. A gear position sensor is installed on a gear shifting lever of the engine system. An electronic control unit of the engine system is connected to the gear position sensor. The electronic control unit is also connected to an ignition device and a fuel injector of the motorcycle. The quick upshift method comprises the following steps.

[0006] In step S1, when the gear position sensor detects that the gear shifting lever is lifted, the real-time gear position is obtained, the target gear position is obtained according to the real-time gear position, and an upshift signal is sent.

[0007] In step S2, the electronic control unit judges whether the upshift signal is continuously monitored within a preset confirmation signal time.

[0008] If yes, go to step S3.

[0009] If no, return to step S1.

[0010] In step S3, the electronic control unit performs open-loop control on the ignition device and the fuel injector within a preset open-loop control time corresponding to the target gear position at the end of the confirmation signal time, so that the engine system loses power and then sends a closed-loop control signal.

[0011] Step S4, the electronic control unit acquires engine real-time speed and target speed corresponding to the target gear according to the closed-loop control signal within preset closed-loop control time corresponding to the target gear, and obtains a torque reduction coefficient according to the engine real-time speed and the target speed, and then adjusts the ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, so as to complete the rapid upshift of the motorcycle.

[0012] Preferably, the open-loop control comprises that the electronic control unit controls the fuel injector to interrupt fuel injection, or controls the ignition device to interrupt ignition, or controls the fuel injector to interrupt fuel injection and controls the ignition device to interrupt ignition at the same time.

[0013] Preferably, the step S4 comprises:

[0014] Step S41, the electronic control unit acquires engine real-time speed and target speed corresponding to the target gear according to the closed-loop control signal within the closed-loop control time corresponding to the target gear, and obtains a torque reduction coefficient according to the engine real-time speed and the target speed.

[0015] Step S42, the electronic control unit multiplies the torque reduction coefficient by the current ignition angle of the ignition device to obtain a target ignition angle, so as to control the ignition device to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, so as to complete the rapid upshift of the motorcycle.

[0016] Preferably, after the step S42 is executed, it further comprises:

[0017] Step S43, the electronic control unit continuously monitors the real-time gear within the closed-loop control time to determine whether the real-time gear is the target gear.

[0018] If yes, the closed-loop control is immediately stopped and the closed-loop control time is ended, and then the step S1 is turned to;

[0019] If no, return to step S43.

[0020] Preferably, after the step S2 is executed, it further comprises a suppression signal process, the suppression signal process comprising:

[0021] The electronic control unit does not receive the monitoring signal of the gear sensor within a preset suppression time corresponding to the target gear at the end of the confirmation signal time.

[0022] Preferably, the suppression time is not less than the open-loop control time and the closed-loop control time.

[0023] The application further provides a quick upshift system of a motorcycle engine system, which applies the quick upshift method as claimed in any one of claims 1-6, and comprises:

[0024] a gear sensor installed on a shift lever of the engine system;

[0025] an electronic control unit connected with the gear sensor, an ignition device of the motorcycle and an oil injector respectively, and comprising:

[0026] a shift monitoring module for obtaining a real-time gear detected when the shift lever is lifted up as monitored by the gear sensor, obtaining a target gear according to the real-time gear, and sending a shift signal;

[0027] an open-loop control module connected with the shift monitoring module, for judging whether the shift signal is continuously monitored within a preset confirmation signal time, performing open-loop control on the ignition device and the oil injector within a preset open-loop control time corresponding to the target gear at the end of the confirmation signal time to make the engine system lose power and then send a closed-loop control signal, and generating a first signal when the shift signal is not continuously monitored;

[0028] the shift monitoring module continues to monitor the real-time gear according to the first signal;

[0029] a speed adjustment module connected with the open-loop control module, for obtaining an engine real-time speed and a target speed corresponding to the target gear within a preset closed-loop control time corresponding to the target gear according to the closed-loop control signal, processing a torque reduction coefficient according to the engine real-time speed and the target speed, and then adjusting an ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, thereby completing the quick upshift of the motorcycle.

[0030] Preferably, the speed adjustment module comprises:

[0031] a calculation unit for processing the torque reduction coefficient according to the engine real-time speed and the target speed within the closed-loop control time corresponding to the target gear according to the closed-loop control signal;

[0032] an adjustment unit connected with the calculation unit, for multiplying the torque reduction coefficient by a current ignition angle of the ignition device to obtain a target ignition angle, and controlling the ignition device to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, thereby completing the quick upshift of the motorcycle.

[0033] Preferably, the open-loop control comprises the electronic control unit controlling the fuel injector to interrupt fuel injection, or controlling the ignition device to interrupt ignition, or simultaneously controlling the fuel injector to interrupt fuel injection and controlling the ignition device to interrupt ignition.

[0034] The above technical solution has the following advantages or beneficial effects: without the need to install system peripherals, in the upshift process, the electronic control unit actively responds to reduce the speed, without the need to operate the throttle and clutch, simple operation, shortens the shifting time, and improves the driving experience. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 For the preferred embodiment of the present application, a flowchart of the rapid upshift method of the motorcycle engine system is shown in the figure.

[0036] Figure 2 For the preferred embodiment of the present application, a sub-flowchart of step S4 of the rapid upshift method of the motorcycle engine system is shown in the figure.

[0037] Figure 3 For the preferred embodiment of the present application, a structure diagram of the rapid upshift system of the motorcycle engine system is shown in the figure. DETAILED DESCRIPTION

[0038] The present application will be described in detail below in conjunction with the drawings and specific embodiments. The present application is not limited to this embodiment, and other embodiments can also fall within the scope of the present application as long as they comply with the spirit of the present application.

[0039] In the preferred embodiment of the present application, based on the above-mentioned problems existing in the prior art, a rapid upshift method of a motorcycle engine system is provided, as shown in the figure, comprising: Figure 1 As shown in the figure, comprising:

[0040] Step S1: When the gear sensor detects that the shift lever is lifted, the real-time gear is obtained, the target gear is obtained according to the real-time gear, and the upshift signal is sent out;

[0041] Step S2: The electronic control unit judges whether the upshift signal is continuously monitored within the preset confirmation signal time:

[0042] If yes, go to step S3;

[0043] If no, return to step S1;

[0044] Step S3: The electronic control unit performs open-loop control on the ignition device and the fuel injection device within the preset open-loop control time corresponding to the target gear at the end of the confirmation signal time, so that the engine system loses power and then sends out a closed-loop control signal;

[0045] Step S4, the electronic control unit obtains the engine real-time speed and the target speed corresponding to the target gear according to the closed-loop control signal within the preset closed-loop control time corresponding to the target gear, and obtains the torque reduction coefficient according to the engine real-time speed and the real-time target speed, and then adjusts the ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, so as to complete the rapid gear shifting of the motorcycle.

[0046] Specifically, in the embodiment, when the gear sensor detects that the shift lever is lifted, the real-time gear is obtained, the next gear of the real-time gear is the target gear according to the real-time gear, and a gear-up signal is sent. The electronic control unit continuously monitors the gear-up signal within the preset confirmation signal time to control the ignition device to interrupt ignition and / or control the fuel injection device to interrupt fuel injection, so that the engine system no longer provides power, which plays a role equivalent to interrupting the clutch in the traditional operation mode. Then, the engine real-time speed and the target speed corresponding to the target gear are obtained, and the torque reduction coefficient is obtained according to the proportional relationship between the engine real-time speed and the target speed. The torque reduction coefficient is used to adjust the ignition angle of the ignition device. In this process, the ignition angle is gradually and continuously adjusted by adjusting the torque reduction coefficient in a closed-loop control manner to reduce the engine real-time speed to match the target speed, so as to complete the rapid gear shifting of the motorcycle.

[0047] In a preferred embodiment of the application, the open-loop control includes the electronic control unit controlling the fuel injector to interrupt fuel injection, or controlling the ignition device to interrupt ignition, or simultaneously controlling the fuel injector to interrupt fuel injection and the ignition device to interrupt ignition.

[0048] Specifically, in the embodiment, the specific operation of the open-loop control can be selected according to the needs in three modes of the electronic control unit controlling the fuel injector to interrupt fuel injection, or controlling the ignition device to interrupt ignition, or simultaneously controlling the fuel injector to interrupt fuel injection and the ignition device to interrupt ignition.

[0049] In a preferred embodiment of the application, step S4 includes:

[0050] Step S41, the electronic control unit obtains the torque reduction coefficient according to the engine real-time speed and the target speed within the closed-loop control time corresponding to the target gear according to the closed-loop control signal.

[0051] Step S42, the electronic control unit multiplies the torque reduction coefficient by the current ignition angle of the ignition device to obtain a target ignition angle, and controls the ignition device to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, so as to complete the rapid gear shifting of the motorcycle.

[0052] Specifically, in the embodiment, the electronic control unit takes the real-time engine speed and the target speed corresponding to the target gear, matches the reduction torque coefficient in the pre-stored proportional relationship and reduction torque coefficient corresponding relationship table according to the proportional relationship between the real-time engine speed and the target speed, and the reduction torque coefficient is used to adjust the ignition angle of the ignition device. In this process, the ignition angle is gradually and continuously adjusted in a closed-loop control manner to reduce the real-time engine speed to match the target speed, so as to complete the rapid gear shifting of the motorcycle.

[0053] In the preferred embodiment of the present application, after step S42, the following step is further included:

[0054] Step S43, the electronic control unit continuously monitors the real-time gear within the closed-loop control time, and judges whether the real-time gear is the target gear:

[0055] If yes, the closed-loop control is immediately stopped and the closed-loop control time is ended, and then the step S1 is turned to;

[0056] If no, the step S43 is returned.

[0057] Specifically, in the embodiment, the real-time gear is continuously monitored within the closed-loop control time. If the real-time gear is the same as the target gear, the gear shifting is completed, and the current upshift process is immediately ended, and then the signal of the gear sensor is monitored again. If not, the real-time gear is continuously monitored.

[0058] In the preferred embodiment of the present application, after step S2, the following step is further included: the inhibition signal process, the inhibition signal process includes:

[0059] The electronic control unit does not receive the monitoring signal of the gear sensor within the preset inhibition time corresponding to the target gear at the end of the confirmation signal time.

[0060] Specifically, in the embodiment, at the end of the confirmation signal time, the open-loop control signal is sent while the monitoring signal of the gear sensor is not received within the preset inhibition time, so as to prevent the upshift process from being affected by the gear misoperation.

[0061] In the preferred embodiment of the present application, the inhibition time is not less than the open-loop control time and the closed-loop control time.

[0062] The present application also provides a rapid upshift system of a motorcycle engine system, the rapid upshift system comprising:

[0063] The gear sensor 1 is installed on the gear shifting lever of the engine system.

[0064] The electronic control unit 2 is connected with the gear sensor 1, the ignition device 3 of the motorcycle and the fuel injector 4 respectively, and the electronic control unit 2 comprises:

[0065] The upshift monitoring module 21 is configured to obtain a real-time gear position detected when the gear lever is lifted up as monitored by the gear sensor, obtain a target gear position according to the real-time gear position, and send an upshift signal;

[0066] The open-loop control module 22 is connected to the upshift monitoring module 21 and configured to determine whether the upshift signal is continuously monitored within a preset confirmation signal time, perform open-loop control on the ignition device and the fuel injector within a preset open-loop control time corresponding to the target gear position at the end of the confirmation signal time to make the engine system lose power and then send a closed-loop control signal, and generate a first signal when the upshift signal is not continuously monitored.

[0067] The upshift monitoring module 21 continues to monitor the real-time gear position according to the first signal.

[0068] The speed adjustment module 23 is connected to the open-loop control module 22 and configured to obtain an engine real-time speed and a target speed corresponding to the target gear position within a preset closed-loop control time corresponding to the target gear position according to the closed-loop control signal, process a torque reduction coefficient according to the engine real-time speed and the target speed, and then adjust the ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, thereby completing the rapid upshift of the motorcycle.

[0069] In a preferred embodiment of the present application, the speed adjustment module 23 comprises:

[0070] The calculation unit 231 is configured to perform closed-loop control according to the engine real-time speed and the target speed within the closed-loop control time corresponding to the target gear position according to the closed-loop control signal to obtain the torque reduction coefficient.

[0071] The adjustment unit 232 is connected to the calculation unit 231 and configured to multiply the torque reduction coefficient by the current ignition angle of the ignition device to obtain a target ignition angle, and control the ignition device 3 to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, thereby completing the rapid upshift of the motorcycle.

[0072] In a preferred embodiment of the present application, the open-loop control comprises interrupting fuel injection of the fuel injector 4 or interrupting ignition of the ignition device 3 or interrupting fuel injection of the fuel injector 4 and interrupting ignition of the ignition device 3 simultaneously.

[0073] The above is only a preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. Those skilled in the art should be able to realize that any equivalent replacement and obvious changes made according to the present application and drawings should be included in the protection scope of the present application.

Claims

1. A method of quick upshift for a motorcycle engine system, characterized in that, The shift lever of an engine system is provided with a gear sensor, and an electronic control unit of the engine system is connected to the gear sensor, and the electronic control unit is also connected to an ignition device and an oil injector of a motorcycle, and the quick upshift method comprises the following steps: Step S1, when the gear sensor monitors that the shift lever is lifted, a real-time gear is obtained, a target gear is obtained according to the real-time gear, and an upshift signal is sent out; Step S2, the electronic control unit judges whether the upshift signal is continuously monitored within a preset confirmation signal time: If yes, go to step S3; If no, return to step S1; Step S3, the electronic control unit performs open-loop control on the ignition device and the oil injector within a preset open-loop control time corresponding to the target gear at the end of the confirmation signal time, so that the engine system loses power and then sends out a closed-loop control signal; Step S4, the electronic control unit obtains an engine real-time speed and a target speed corresponding to the target gear according to the closed-loop control signal within a preset closed-loop control time corresponding to the target gear, and processes a torque reduction coefficient according to the engine real-time speed and the target speed, and then adjusts the ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, so as to complete the quick upshift of the motorcycle.

2. The quick upshift method of claim 1, wherein, The open-loop control comprises that the electronic control unit controls the oil injector to interrupt oil injection, or controls the ignition device to interrupt ignition, or simultaneously controls the oil injector to interrupt oil injection and controls the ignition device to interrupt ignition.

3. The method of quick upshifting according to claim 1, characterized in that, The step S4 comprises: Step S41, the electronic control unit processes a torque reduction coefficient according to the engine real-time speed and the target speed within the closed-loop control time corresponding to the target gear according to the closed-loop control signal; Step S42, the electronic control unit multiplies the torque reduction coefficient by the current ignition angle of the ignition device to obtain a target ignition angle, so as to control the ignition device to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, so as to complete the quick upshift of the motorcycle.

4. The method of quick upshifting according to claim 3, characterized in that, After the step S42 is executed, it further comprises: Step S43, the electronic control unit continuously monitors the real-time gear within the closed-loop control time to judge whether the real-time gear is the target gear: If yes, immediately stop the closed-loop control and end the closed-loop control time, and then go to step S1; If no, return to step S43.

5. The method for quick upshifting according to claim 1, wherein, After the step S2 is executed, it further comprises an inhibition signal process, which comprises: The electronic control unit does not receive the monitoring signal of the gear sensor within a preset inhibition time corresponding to the target gear at the end of the confirmation signal time.

6. The method for quick upshifting according to claim 5, characterized in that, The inhibition time is not less than the open-loop control time and the closed-loop control time.

7. A quick upshift system for a motorcycle engine system, characterized by, The quick upshift system comprises: A gear sensor installed on the shift lever of the engine system; An electronic control unit is connected to the gear sensor, an ignition device and an injector of the motorcycle, and comprises: a gear-up monitoring module configured to obtain a real-time gear detected when the gear sensor detects that the gear lever is lifted, to obtain a target gear according to the real-time gear, and to send a gear-up signal; an open-loop control module connected to the gear-up monitoring module, configured to determine whether the gear-up signal is continuously monitored within a preset confirmation signal time, to perform open-loop control on the ignition device and the injector within a preset open-loop control time corresponding to the target gear at the end of the confirmation signal time to make the engine system lose power and then send a closed-loop control signal, and to generate a first signal when the gear-up signal is not continuously monitored; the gear-up monitoring module continues to monitor the real-time gear according to the first signal; a speed adjustment module connected to the open-loop control module, configured to obtain an engine real-time speed and a target speed corresponding to the target gear within a preset closed-loop control time corresponding to the target gear according to the closed-loop control signal, to obtain a torque reduction coefficient according to the engine real-time speed and the target speed, and to adjust the ignition angle of the ignition device according to the torque reduction coefficient to adjust the engine real-time speed to the target speed, thereby completing the rapid gear-up of the motorcycle.

8. The quick upshift system of claim 7, wherein, The speed adjustment module comprises: a calculation unit configured to obtain a torque reduction coefficient according to the engine real-time speed and the target speed within the closed-loop control time corresponding to the target gear according to the closed-loop control signal; an adjustment unit connected to the calculation unit, configured to multiply the torque reduction coefficient by the current ignition angle of the ignition device to obtain a target ignition angle, to control the ignition device to adjust the ignition angle according to the target ignition angle to adjust the real-time speed to the target speed, and to complete the rapid gear-up of the motorcycle.

9. The quick upshift system of claim 7, wherein, The open-loop control comprises that the electronic control unit controls the injector to interrupt fuel injection, controls the ignition device to interrupt ignition, or controls the injector to interrupt fuel injection and controls the ignition device to interrupt ignition at the same time.

Images