Anti-lock brake system (ABS) of motorcycle

Abstract

The utility model relates to a motorcycle ABS (anti-lock brake system), which comprises a power management module, a signal input judgment module, a wheel speed monitoring output module, a motor drive control module, a communication module, an indication alarm module, a brake control module and a main control module, the signal input judgment module is used for receiving and judging ABS mode switching signals and brake signals, the wheel speed monitoring output module is used for monitoring and outputting rotating speed information of wheels in real time, and the motor driving control module is used for receiving control signals output by the main control module to drive a motor and outputting motor state signals to the main control module. The communication module is used for being in communication connection with external equipment for data interaction, the indication alarm module is used for controlling on and off of an ABS indication lamp so as to prompt the system state, the brake control module is used for controlling the wheel brake process so as to prevent wheels from being locked, and the main control module is used for collecting signals and processing output signals. And the braking force is adjusted according to the collected signals.

Description

Technical Field

[0001] The present application relates to the technical field of motorcycle brakes, and in particular to an ABS anti-lock braking system for motorcycles. Background Art

[0002] During motorcycle driving, especially at high speed or in emergency braking, tire locking is a serious safety hazard. Traditional braking systems cannot accurately control the braking force, which can easily cause tire locking during emergency braking, leading to serious consequences such as vehicle loss of control, side sliding, or even rollover. In order to solve this problem and improve the safety and stability of motorcycle driving, the anti-lock braking system (ABS) came into being.

[0003] The ABS system achieves precise control of the braking process by integrating advanced computer technology, sensor technology and precision control algorithms. However, the existing ABS system still has certain problems and challenges in power management, system response speed, communication reliability and other aspects.

[0004] Traditional ABS systems may face power interference problems. When the motor starts, it may interfere with other circuits and affect system stability. In addition, system response speed and communication reliability are also key factors, especially in complex and changeable driving environments. Therefore, there is room for improvement. Utility Model Content

[0005] In order to effectively shorten the braking distance, improve the braking efficiency, maintain the stability and directional controllability of the vehicle during emergency braking, and prevent skidding and loss of control, the present application provides a motorcycle ABS anti-lock braking system.

[0006] The present application provides a motorcycle ABS anti-lock braking system adopts the following technical solution:

[0007] A motorcycle ABS anti-lock braking system comprises a power management module, a signal input judgment module, a wheel speed monitoring output module, a motor drive control module, a communication module, an indication alarm module, a brake control module and a main control module, wherein the power management module is used to supply power to each module, the signal input judgment module is used to receive and judge an ABS mode switch signal and a brake signal, the wheel speed monitoring output module is used to monitor and output the rotation speed information of the wheel in real time, the motor drive control module is used to receive the control signal output by the main control module to drive the motor, and output the motor status signal to the main control module, the communication module is used to communicate with an external device to exchange data, the indication alarm module is used to control the lighting and extinguishing of the ABS indicator light to indicate the system status, the brake control module is used to control the wheel braking process to prevent the wheel from locking, and the main control module is used to collect signals and process the output signals, and adjust the braking force according to the collected signals.

[0008] By adopting the above technical solution, the power management module provides a stable and reliable power supply for the entire ABS system, ensuring that each module can obtain sufficient power support during the system startup and operation. The signal input judgment module receives the signal from the ABS mode switch and the brake pedal, judges the validity of the signal and outputs the signal judgment result to the main control module. The wheel speed is monitored in real time through the wheel speed monitoring output module, and the speed information is converted into an electrical signal and output to the main control module. The main control module outputs a control signal to the motor drive control module according to the signal output by the wheel speed monitoring output module. The motor drive control module drives the belt in the ABS system to work, and at the same time feeds back the working state of the motor to the main control module. When the ABS system is working or a fault occurs, the main control module outputs a signal to the indication alarm module, and the indication alarm module controls the lighting and extinguishing of the ABS indicator light, so as to provide the driver with intuitive feedback on the state of the ABS system. The brake control module adjusts the braking torque of the wheel according to the control instruction of the main control module to prevent the wheel from locking, which can effectively shorten the braking distance and improve the braking efficiency. It can also maintain the stability and directional controllability of the vehicle during emergency braking to prevent the occurrence of side slip and loss of control.

[0009] Optionally, the power management module includes a first power supply sub-module and a second power supply sub-module, the first power supply sub-module is electrically connected to the signal input judgment module, the wheel speed monitoring output module, the communication module, the indication alarm module, the braking control module and the main control module, and the second power supply sub-module is electrically connected to the motor drive control module.

[0010] By adopting the above technical solution, the power management module uses two power supply circuits. The first power supply submodule supplies power to the signal input judgment module, the wheel speed monitoring output module, the communication module, the indication alarm module, the brake control module and the main control module, and the second power supply submodule is electrically connected to the motor drive control module to prevent interference with other circuits when the motor is started.

[0011] Optionally, the power management module further includes a battery coil power protection submodule, including an anti-reverse connection protection D1 and a power switch Q2, which is used to automatically disconnect the power supply of non-essential circuits when the vehicle is not ignited, thereby reducing static current consumption.

[0012] By adopting the above technical solution, in the process of managing battery power and reducing quiescent current consumption, when the vehicle is not ignited, the power switch Q2 is in the off state, preventing the power supply of non-essential circuits. In this way, only the necessary circuits will remain powered, thereby greatly reducing the quiescent current consumption. Once the vehicle is ignited, the ignition signal will trigger the power switch Q2 to close, allowing the non-essential circuits that were previously disconnected to be powered. By combining the functions of anti-reverse connection protection and intelligent power switch, important safety and energy-saving features are provided for the vehicle electrical system. It helps prevent battery damage, extend battery life, and automatically manage power distribution and reduce quiescent current consumption when the vehicle is not ignited.

[0013] Optionally, the wheel speed monitoring output module includes a whole wheel speed output submodule and a front wheel speed output submodule, the whole wheel speed output submodule is used to obtain the rotational speed information of the wheels of the whole vehicle, and the front wheel speed output submodule is used to obtain the wheel speed information of the front wheels.

[0014] By adopting the above technical solution, the wheel speed monitoring and output module can comprehensively and accurately obtain the vehicle's rotational speed information by integrating the functions of the whole wheel speed output circuit and the front wheel speed output circuit, providing important data support for the vehicle's control system.

[0015] Optionally, the signal input judgment module includes a voltage detection submodule, a brake signal input submodule and an ABS mode start detection submodule. The ABS mode start submodule is used to confirm whether the user has enabled the ABS function, the brake signal input submodule is used to detect the braking action in real time, and the voltage detection submodule is used to monitor the voltage of the ignition power supply and the battery power supply.

[0016] By adopting the above technical solution, the voltage of the ignition power supply and the battery power supply is monitored through the voltage detection submodule to ensure stable operation of the system. The brake signal input submodule confirms whether the user steps on the brake by judging the input level. The ABS mode start detection submodule confirms whether the user enables the ABS function by judging the input level.

[0017] Optionally, the brake control module includes a linear valve driving submodule and a valve signal detection submodule, the valve signal detection submodule is used to detect whether the brake valve is open, and the linear valve driving submodule is used to control the brake fluid pressure according to the control signal to achieve vehicle braking.

[0018] By adopting the above technical solution, the valve signal detection submodule and the linear valve drive submodule in the brake control module cooperate with each other to ensure the normal operation of the vehicle brake system. The valve signal detection submodule is responsible for monitoring the state of the brake valve to ensure that the brake signal can be accurately transmitted; while the linear valve drive submodule adjusts the brake fluid pressure according to the control signal to realize the vehicle's braking function.

[0019] Optionally, the communication module includes a K-line communication submodule and a CAN communication submodule, the K-line communication submodule is used to support low-speed data communication, and the CAN communication submodule is used to support high-speed data communication.

[0020] By adopting the above technical solutions, the K-line communication submodule and the CAN communication submodule each play different roles and tasks in the vehicle communication system. Through different communication methods and characteristics, they jointly realize data transmission and exchange between various control units inside the vehicle, providing strong support for the safety, comfort and intelligence of the vehicle.

[0021] Optionally, the motor drive control module includes a motor state monitoring submodule, and an output end of the motor state monitoring submodule is electrically connected to the main control module to feed back the motor state to the main control module.

[0022] By adopting the above technical solution, the motor working status can be obtained in real time through the motor status monitoring sub-module, and the motor status can be fed back to the MCU so that the control strategy can be adjusted in time.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The power management module provides a stable and reliable power supply for the entire ABS system to ensure that each module can obtain sufficient power support during the system startup and operation. The signal input judgment module receives signals from the ABS mode switch and the brake pedal, judges the validity of the signal and outputs the signal judgment result to the main control module. The wheel speed monitoring output module monitors the wheel speed in real time and converts the speed information into an electrical signal and outputs it to the main control module. The main control module outputs a control signal to the motor drive control module according to the signal output by the wheel speed monitoring output module. The motor drive control module drives the belt in the ABS system to work, and at the same time feedbacks the working status of the motor to the main control module. When the ABS system is working or fails, the main control module outputs a signal to the indication alarm module, which controls the lighting and extinguishing of the ABS indicator light to provide the driver with intuitive feedback on the status of the ABS system. The brake control module adjusts the wheel braking torque according to the control instructions of the main control module to prevent the wheel from locking, which can effectively shorten the braking distance and improve the braking efficiency. It can also maintain the stability and directional controllability of the vehicle during emergency braking to prevent skidding and loss of control.

[0025] 2. The power management module uses two power supply circuits. The first power supply module supplies power to the signal input judgment module, wheel speed monitoring output module, communication module, indication alarm module, brake control module and main control module. The second power supply module is electrically connected to the motor drive control module to prevent interference with other circuits when the motor starts;

[0026] 3. In the process of managing battery power and reducing quiescent current consumption, when the vehicle is not ignited, the power switch Q2 is in the off state, preventing non-essential circuits from being powered. In this way, only the necessary circuits will remain powered, thereby greatly reducing the quiescent current consumption. Once the vehicle is ignited, the ignition signal will trigger the power switch Q2 to close, allowing the previously disconnected non-essential circuits to be powered. By combining the functions of anti-reverse connection protection and intelligent power switch, it provides important safety and energy-saving features for the vehicle electrical system. It helps prevent battery damage, prolong battery life, and automatically manages power distribution and reduces quiescent current consumption when the vehicle is not ignited. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a circuit diagram of a main control module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0028] Figure 2 It is a circuit diagram of a battery coil power protection submodule of a motorcycle ABS anti-lock braking system in an embodiment of the present application.

[0029] Figure 3 It is a circuit diagram of a wheel speed monitoring output module of a motorcycle ABS anti-lock braking system in an embodiment of the present application.

[0030] Figure 4 It is a circuit diagram of a motor drive control module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0031] Figure 5 It is a circuit diagram of a communication module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0032] Figure 6 The present invention is a circuit diagram of a signal input judgment module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0033] Figure 7 It is a circuit diagram of a brake control module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0034] Figure 8 It is a circuit diagram of an indication alarm module of a motorcycle ABS anti-lock braking system according to an embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. Power management module; 11. First power supply submodule; 12. Second power supply submodule; 13. Battery coil power protection submodule; 2. Signal input judgment module; 21. Voltage detection submodule; 22. Brake signal input submodule; 23. ABS mode start detection submodule; 3. Wheel speed monitoring output module; 31. Whole wheel speed output submodule; 32. Front wheel speed output submodule; 4. Motor drive control module; 41. Motor status monitoring submodule; 5. Communication module; 51. K-line communication submodule; 52. CAN communication submodule; 6. Indication alarm module; 7. Braking control module; 71. Linear valve drive submodule; 72. Valve signal detection submodule; 8. Main control module. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] The present application embodiment discloses a motorcycle ABS anti-lock braking system. Figure 1-8 The motorcycle ABS anti-lock braking system includes a power management module 1, a signal input judgment module 2, a wheel speed monitoring output module 3, a motor drive control module 4, a communication module 5, an indication alarm module 6, a brake control module 7 and a main control module 8.

[0038] like Figure 1As shown, the main control module 8 includes a control chip U4 of model AC7811QBGE, C34, C35, Y1, and R45 form a crystal oscillator circuit, D13, C31, and R48 form a reset circuit, a filter capacitor, and a bias circuit, which are used to process and judge input signals and make corresponding output controls through MCU internal software and algorithms.

[0039] like Figure 2 As shown, the power management module 1 includes a first power supply submodule 11, a second power supply submodule 12 and a battery coil power protection submodule 13. The first power supply submodule 11 and the second power supply submodule 12 are not shown in the figure. The first power supply submodule 11 outputs AF+12V, and the second power supply submodule 12 outputs AM+12V. The first power supply submodule 11 supplies power to the signal input judgment module 2, the wheel speed monitoring output module 3, the communication module 5, the indication alarm module 6, the brake control module 7 and the main control module 8. The second power supply submodule 12 is electrically connected to the motor drive control module 4 to prevent interference with other circuits when the motor is started. The battery coil power protection submodule 13 includes an anti-reverse protection D1, a drive tube Q1 and a power switch Q2. Q1 is a Q2 drive tube, which automatically disconnects the power supply of non-essential circuits when the vehicle is not ignited to reduce static current consumption.

[0040] like Figure 3 As shown, the wheel speed monitoring output module 3 includes a whole wheel speed output submodule 31 and a front wheel speed output submodule 32. R25, R26, R27, and Q5 constitute the whole wheel speed output submodule 31, and R29, R30, R31, and Q6 constitute the front wheel speed output submodule 32. The whole wheel speed output submodule 31 is used to obtain the rotational speed information of the wheels of the whole vehicle, and the front wheel speed output submodule 32 is used to obtain the wheel speed information of the front wheels. The rotational speed information of the vehicle can be fully and accurately obtained, and important data support is provided for the control system of the vehicle.

[0041] like Figure 4 As shown, the motor drive control module 4 includes a motor state monitoring submodule 41. The motor drive control module 4 is composed of R33, Q7, R35, R36, C24, Q8, D12, C25, and R67. R37, R38, Q9, and C26 constitute the motor state monitoring submodule 41, which feeds back the motor state to the MCU to determine whether the motor is connected.

[0042] like Figure 5As shown, the communication module 5 includes a K-line communication submodule 51 and a CAN communication submodule 52. D7, C15, R22, R23, D8, U2, and C16 constitute the K-line communication submodule 51. External communication uses this part of the circuit to communicate with the MCU via the K-line. C12, U1, R19, C13, C14, D6, R20, and R21 constitute the CAN communication submodule 52. External communication uses this part of the circuit to communicate with the MCU via the CAN line. The K-line communication submodule 51 and the CAN communication submodule 52 each play different roles and tasks in the vehicle communication system. Through different communication methods and characteristics, they jointly realize data transmission and exchange between various control units in the vehicle, providing strong support for the safety, comfort, and intelligence of the vehicle.

[0043] like Figure 6 As shown, the signal input judgment module 2 includes a voltage detection submodule 21, a brake signal input submodule 22 and an ABS mode start detection submodule 23. R10, R11, R12, Q4, C8, and C9 constitute the ABS mode start detection submodule 23, which determines whether the user has enabled the ABS function by determining the input level. R7, R8, R9, Q3, C6, and C7 constitute the brake signal input submodule 22, which determines whether the user has stepped on the brake by determining the input level. C10, R13, R14, and R15 constitute an ignition power supply voltage divider bias circuit; C11, R16, R17, and R18 constitute a battery power supply voltage bias circuit to monitor the voltages of the ignition power supply and the battery power supply.

[0044] like Figure 7 As shown, the brake control module 7 includes a linear valve driving submodule 71 and a valve signal detection submodule 72. D14, D15, Q11, R54, R57 and D16, D17, Q12, R58, R59 respectively form two groups of linear valve driving submodules 71. R53, R55, R56, C29 and R60, R61, R62, C30 respectively form two groups of valve signal detection submodules 72 for detecting whether the valve is open. The valve signal detection submodule 72 and the linear valve driving submodule 71 cooperate with each other to ensure the normal operation of the vehicle braking system.

[0045] like Figure 8 As shown, R65, R66, Q13, D18, D19, Q14, F1, and R64 constitute an ABS light control circuit, which drives the ABS light to light up or turn off through the MCU output signal.

[0046] The implementation principle of the motorcycle ABS anti-lock braking system in the embodiment of the present application is as follows: a stable and reliable power supply is provided to the entire ABS system through the power management module 1 to ensure that each module can obtain sufficient power support during the startup and operation of the system; a signal input judgment module 2 receives signals from the ABS mode switch and the brake pedal, judges the validity of the signal and outputs the signal judgment result to the main control module 8; a wheel speed monitoring output module 3 monitors the rotation speed of the wheel in real time, and converts the rotation speed information into an electrical signal and outputs it to the main control module 8; the main control module 8 outputs a control signal to the motor drive control module according to the signal output by the wheel speed monitoring output module 3 The brake module 4 and the motor drive control module 4 drive the belt in the ABS system to work, and at the same time feedback the working status of the motor to the main control module 8. When the ABS system is working or fails, the main control module 8 outputs a signal to the indication alarm module 6, and the indication alarm module 6 controls the lighting and extinguishing of the ABS indicator light to provide the driver with intuitive feedback on the ABS system status. The brake control module 7 adjusts the braking torque of the wheel according to the control instruction of the main control module 8 to prevent the wheel from locking, which can effectively shorten the braking distance, improve the braking efficiency, and maintain the stability and directional controllability of the vehicle during emergency braking to prevent the occurrence of skidding and loss of control.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A motorcycle ABS anti-lock braking system, characterized in that: The invention comprises a power management module (1), a signal input judgment module (2), a wheel speed monitoring output module (3), a motor drive control module (4), a communication module (5), an indication alarm module (6), a brake control module (7) and a main control module (8), wherein the power management module (1) is used to supply power to each module, the signal input judgment module (2) is used to receive and judge an ABS mode switch signal and a brake signal, the wheel speed monitoring output module (3) is used to monitor and output wheel speed information in real time, the motor drive control module (4) is used to receive a control signal output by the main control module (8) to drive the motor, and output a motor status signal to the main control module (8), the communication module (5) is used to communicate with an external device to perform data exchange, the indication alarm module (6) is used to control the lighting and extinguishing of the ABS indicator light to indicate the system status, the brake control module (7) is used to control the wheel braking process to prevent the wheel from locking, and the main control module (8) is used to collect signals and process the output signals, and adjust the braking force according to the collected signals.

2. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The power management module (1) comprises a first power supply submodule (11) and a second power supply submodule (12); the first power supply submodule (11) is electrically connected to a signal input judgment module (2), a wheel speed monitoring output module (3), a communication module (5), an indication alarm module (6), a brake control module (7) and a main control module (8), respectively; and the second power supply submodule (12) is electrically connected to a motor drive control module (4).

3. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The power management module (1) further comprises a battery coil power protection submodule (13), including an anti-reverse connection protection D1 and a power switch Q2, which is used to automatically disconnect the power supply of non-essential circuits when the vehicle is not ignited, thereby reducing static current consumption.

4. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The wheel speed monitoring output module (3) comprises a whole wheel speed output submodule (31) and a front wheel speed output submodule (32); the whole wheel speed output submodule (31) is used to obtain rotation speed information of the wheels of the whole vehicle, and the front wheel speed output submodule (32) is used to obtain rotation speed information of the front wheels.

5. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The signal input judgment module (2) comprises a voltage detection submodule (21), a brake signal input submodule (22) and an ABS mode start detection submodule (23), wherein the ABS mode start submodule is used to confirm whether the user has enabled the ABS function, the brake signal input submodule (22) is used to detect the brake action in real time, and the voltage detection submodule (21) is used to monitor the voltage of the ignition power supply and the battery power supply.

6. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The brake control module (7) comprises a linear valve driving submodule (71) and a valve signal detection submodule (72), wherein the valve signal detection submodule (72) is used to detect whether the brake valve is open, and the linear valve driving submodule (71) is used to control the brake fluid pressure according to a control signal to achieve vehicle braking.

7. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The communication module (5) comprises a K-line communication submodule (51) and a CAN communication submodule (52), wherein the K-line communication submodule (51) is used to support low-speed data communication, and the CAN communication submodule (52) is used to support high-speed data communication.

8. The motorcycle ABS anti-lock braking system according to claim 1, characterized in that: The motor drive control module (4) comprises a motor state monitoring submodule (41), and the output end of the motor state monitoring submodule (41) is electrically connected to the main control module (8) to feed back the motor state to the main control module (8).

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