Two-wheeled vehicle safe driving auxiliary electronic stabilization system and control method thereof

By introducing actuators, sensors and controllers into the two-wheeler safe driving assistance electronic stability system, and using switch control units and volume adjustment units for intelligent hydraulic adjustment, the problems of complexity and single functions of the brake system in the existing system are solved, and higher driving safety and service life of the brake system are achieved.

CN119928798APending Publication Date: 2025-05-06WENZHOU RUILI KEMI AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202510194370.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

The existing two-wheeler safety driving auxiliary electronic stability system has problems such as large size, expensive, complex structure, single function and complex operation. Especially in terms of the braking system, there are problems such as hydraulic impact on the main brake pump, handle rebounding and pressurization, and negative pressure forming in the pressure chamber, which affects the driver's driving judgment and the service life of the brake system.

Method used

It provides a two-wheeler safe driving auxiliary electronic stability system, including actuator, sensor and controller. Through the switch control unit and volume adjustment unit, intelligent boosting and decompression adjustment of the hydraulic pressure at the brake caliper is realized to avoid hydraulic impact from the brake main pump and provide backup braking force when the brake fails.

Benefits of technology

It realizes a two-wheeler safe driving assist electronic stability system with compact structure, diverse functions and simple operation, which can effectively reduce the difficulty of braking adjustment operation, improve driving safety performance and braking service life.

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Abstract

The invention discloses a two-wheeled vehicle safe driving auxiliary electronic stabilization system and a control method thereof.The system comprises an actuator, an inductor used for inducting the braking state of a vehicle and a controller used for receiving signals transmitted by the inductor and controlling the actuator to be switched on and off; the actuator comprises a first passage, a switch control unit communicated with the brake main pump through the first passage, a second passage, a volume adjusting unit communicated with the switch control unit through the second passage, and a third passage for communicating the volume adjusting unit with the brake calipers; the controller judges the braking state of the vehicle based on the signal transmitted by the sensor; when the controller judges that the vehicle is in a locked state or a brake failure state, the controller controls the switch control unit to be switched off and controls the volume adjusting unit to adjust the hydraulic pressure. The brake adjusting device has the vehicle anti-lock function and the standby brake function, the brake adjusting hand feeling can be smooth, the brake adjusting operation difficulty is lowered, the installation space requirement is reduced, and therefore the driving safety is improved, and the brake service life is prolonged.
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Description

Technical Field

[0001] The invention belongs to the technical field of safe driving auxiliary electronic stability systems, and in particular relates to a safe driving auxiliary electronic stability system for a two-wheeled vehicle and a control method thereof. Background Art

[0002] Two-wheeled vehicles include fuel-assisted bicycles, electric bicycles and other types of vehicles. Due to their lightness and flexibility, they are the first choice for short-distance travel. The existing electronic stability control systems for safe driving assistance on the market have problems such as large size, high price, complex structure, single function, and complex operation, which are difficult to meet the needs of drivers. Especially in the braking system, when the existing electronic stability control system performs anti-lock braking adjustment, there are problems such as hydraulic shock to the brake master pump, rebound of the handle against the hand, and negative pressure in the pressure-building chamber, which affect the driver's driving judgment and the service life of the braking system.

[0003] The Chinese invention patent with patent number ZL202111593805.8 simplifies the hydraulic circuit, reduces the number of accessories, and reduces the size of the anti-lock device. However, the anti-lock device cannot cut off the hydraulic input of the handbrake brake master pump when it is working. The adjustment chamber is continuously adjusted during the decompression adjustment, and the main pump hydraulic pressure is continuously input, which reduces the adjustment effect. In addition, the handle also absorbs the displacement of the main pump's propulsion stroke as the adjustment chamber absorbs, and continues to sink, misleading the driver about brake failure. The device has a single function and is easy to confuse the brake feel given to the driver by brake failure with the brake feel given to the driver by ABS adjustment, which is easy to cause safety accidents in critical driving scenarios. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides an electronic stability assist system for safe driving of a two-wheeled vehicle and a control method thereof.

[0005] In a first aspect, the present invention provides an electronic stability assist system for safe driving of a two-wheeled vehicle, comprising:

[0006] The actuator includes a first passage, a switch control unit connected to a brake master pump through the first passage, a second passage, a volume adjustment unit connected to the switch control unit through the second passage, and a third passage connecting the volume adjustment unit to a brake caliper;

[0007] A sensor for sensing the braking status of a vehicle;

[0008] A controller for receiving signals transmitted by the sensor and controlling the switch of the actuator, which is electrically connected to the sensor, the switch control unit in the actuator and the volume adjustment unit in the actuator; and

[0009] The controller determines the braking state of the vehicle based on the signal transmitted by the sensor;

[0010] When the controller determines that the vehicle is in a locked state, the controller controls the switch control unit in the actuator to disconnect, and at the same time, the controller controls the volume adjustment unit in the actuator to adjust the hydraulic pressure at the brake caliper.

[0011] In some embodiments, when the controller determines that the vehicle is in a brake failure state, the controller controls the switch control unit in the actuator to disconnect, and at the same time, the controller controls the volume adjustment unit in the actuator to provide braking force instead of the brake master pump.

[0012] In some embodiments, the switch control unit comprises:

[0013] a first valve body;

[0014] A normally open solenoid valve is disposed in the first valve body; and

[0015] When the controller controls the normally open solenoid valve to be disconnected, the normally open solenoid valve separates the cavity of the first valve body into two parts isolated from each other, wherein the part communicating with the second passage in the actuator is the first sealed cavity.

[0016] In some embodiments, the volume adjustment unit comprises:

[0017] A second valve body;

[0018] an adjusting plunger, which is disposed in the second valve body, wherein the outer wall of the adjusting plunger is in sealing contact with the inner wall of the second valve body, and the adjusting plunger divides the cavity of the second valve body into two parts isolated from each other, wherein the part connected with both the second passage in the actuator and the third passage in the actuator is the second sealed cavity; and

[0019] The motor has an output end connected to the regulating plunger, driving the regulating plunger to perform reciprocating motion in the cavity of the second valve body.

[0020] In some embodiments, the controller controls the volume adjustment unit in the actuator to adjust the hydraulic pressure at the brake caliper as follows:

[0021] The controller controls the motor in the volume regulating unit to drive the regulating plunger in the volume regulating unit to move in the volume chamber of the second valve body in the volume regulating unit, so that the volume of the second sealed chamber in the volume regulating unit is reduced to perform pressurization; and

[0022] The controller controls the motor in the volume regulating unit to drive the regulating plunger in the volume regulating unit to move in the volume chamber of the second valve body in the volume regulating unit so that the volume of the second sealed chamber in the volume regulating unit increases to perform decompression.

[0023] In some embodiments, the volume adjustment unit is provided with a limit structure for controlling the maximum movement distance of the adjustment plunger.

[0024] In some embodiments, the regulating plunger in the volume regulating unit is provided with a plurality of protrusions evenly distributed around the circumference, and the inner wall of the second valve body in the volume regulating unit is provided with a plurality of straight grooves that cooperate with the protrusions in the regulating plunger to form a rotation-stopping structure.

[0025] In some embodiments, a liquid guiding groove is provided on an end surface of an adjusting plunger in the volume adjusting unit close to the third passage in the actuator.

[0026] In some embodiments, the first valve body in the switch control unit and the second valve body in the volume regulating unit are arranged in parallel, and the second passage in the actuator and the first valve body in the switch control unit and the second valve body in the volume regulating unit are arranged vertically.

[0027] In a second aspect, a method for using an electronic stability assist system for safe driving of a two-wheeled vehicle is provided, and the method for using the electronic stability assist system for safe driving of a two-wheeled vehicle comprises the following steps:

[0028] First, a controller is used to determine the braking state of the vehicle based on the signal transmitted by the sensor;

[0029] Secondly, if the controller determines that the vehicle is in a locked state, the controller is used to control the switch control unit in the actuator to disconnect, and at the same time, the controller is used to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to move so as to adjust the volume of the second sealed chamber in the actuator;

[0030] Then, if the controller determines that the vehicle is in a brake failure state, the controller controls the switch control unit in the actuator to disconnect, and at the same time uses the controller to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to reciprocate;

[0031] Finally, if the controller determines that the vehicle is in a normal state, the controller controls the switch control unit in the actuator to be connected, and at the same time uses the controller to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to reset and then close, and uses the control main pump to execute pressure building.

[0032] The beneficial effects of the present invention are as follows: the present invention has a compact structure, low layout space requirements, and has both vehicle anti-lock braking function and backup brake active pressure building function, which can achieve a smooth brake adjustment feel, reduce the difficulty of brake adjustment operation and reduce installation space requirements, thereby achieving the purpose of improving driving safety performance and brake service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 is an overall structural diagram of a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0035] Figure 2 is a control connection diagram of a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0036] Figure 3 is a cross-sectional view of a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0037] Figure 4 is a disassembly and connection diagram of a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0038] Figure 5 It is a structural enlarged diagram of the first sealed cavity and the second sealed cavity in the two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0039] Figure 6 It is a structural diagram of the connection between the motor and the regulating plunger in the two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0040] Figure 7 2 is a schematic structural diagram of a second valve body in a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0041] Figure 8 is a cross-sectional view of a second valve body in a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention;

[0042] Fig. 9 is a schematic structural diagram of an adjustment plunger in a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention at a first viewing angle;

[0043] Fig.10 It is a schematic structural diagram of an adjustment plunger in a two-wheeled vehicle safe driving auxiliary electronic stability system provided in one embodiment of the present invention at a second viewing angle. DETAILED DESCRIPTION

[0044] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0045] like Figure 1-2 As shown, the present invention provides an electronic stability assist system for safe driving of a two-wheeled vehicle, comprising an actuator 10 , a sensor 20 for sensing a braking state of the vehicle, and a controller 30 for receiving a signal transmitted by the sensor 20 and controlling the switch of the actuator 10 .

[0046] The actuator 10 includes a first passage 101, a switch control unit 102 connected to the brake master pump 40 through the first passage 101, a second passage 103, a volume adjustment unit 104 connected to the switch control unit 102 through the second passage 103, and a third passage 105 connecting the volume adjustment unit 104 to the brake caliper 50.

[0047] like Figure 1-5 As shown, in one embodiment, the switch control unit 102 includes a first valve body 1021 and a normally open solenoid valve 1022 disposed in the first valve body 1021. When the controller 30 controls the normally open solenoid valve 1022 to be disconnected, the normally open solenoid valve 1022 separates the cavity of the first valve body 1021 into two parts isolated from each other, wherein the part communicating with the second passage 103 in the actuator 10 is the first sealed cavity 1023.

[0048] In order to reduce vibration and impact and improve the stability and life of the switch control unit 102, as Figure 4 As shown, in one embodiment, the switch control unit 102 further includes a solenoid valve coil 1024 disposed on the normally open solenoid valve 1022 and a coil buffer ball 1025 disposed on the solenoid valve coil 1024 .

[0049] It is understandable that the normally open solenoid valve 1022 is an isolation valve, and the hydraulic isolation or conduction between the brake master pump 40 and the brake caliper 50 can be achieved by disconnecting or connecting the normally open solenoid valve 1022. When the controller 30 controls the normally open solenoid valve 1022 to be disconnected, the hydraulic pressure generated by the brake master pump 40 is isolated in the first sealed chamber 1023 in the switch control unit 102. When the controller 30 controls the normally open solenoid valve 1022 to be connected, the hydraulic pressure generated by the brake master pump 40 normally passes through the first channel in the actuator 10, the second channel in the actuator 10, and the third passage 105 in the actuator 10 to reach the brake caliper 50 to perform pressure building. The setting of the normally open solenoid valve 1022 effectively blocks the impact of the hydraulic pressure on the seal of the brake master pump 40 during the wheel-end anti-lock pressure adjustment of the brake system, and improves the service life of the brake master pump 40. At the same time, it prevents the vehicle brake handle from sinking continuously as the actuator 10 absorbs the displacement of the brake master pump 40 in the advancement stroke, so as to mislead the driver into thinking that the brake fails.

[0050] like Figure 2 , 3As shown in Figures 5 and 6, in one embodiment, the volume adjustment unit 104 includes a second valve body 1041, an adjustment plunger 1042 and a motor 1043 disposed in the second valve body 1041. The outer wall of the adjustment plunger 1042 is in sealing contact with the inner wall of the second valve body 1041, and the adjustment plunger 1042 separates the volume of the second valve body 1041 into two parts isolated from each other, wherein the part connected with the second passage 103 in the actuator 10 and the third passage 105 in the actuator 10 is the second sealed chamber 1044. The output end of the motor 1043 is connected to the adjustment plunger 1042, driving the adjustment plunger 1042 to reciprocate in the volume of the second valve body 1041.

[0051] like Figure 6 and Figure 8 As shown, in one embodiment, the inner wall of the second valve body 1041 in the volume regulating unit 104 is provided with a plurality of sealing ring grooves 1041a, and the sealing ring grooves 1041a are filled with sealing rings 1041b. The outer diameter of the regulating plunger 1042 is sealed by an interference fit with the sealing ring 1041b, thereby achieving the purpose of sealing contact between the outer wall of the regulating plunger 1042 and the inner wall of the second valve body 1041.

[0052] like Figure 6 and Figure 8 As shown, in one embodiment, one end of the adjusting plunger 1042 in the volume adjusting unit 104 is provided with a threaded hole 1042a, and the output end of the motor 1043 in the volume adjusting unit 104 is connected to the adjusting plunger 1042 through the threaded hole 1042a in the adjusting plunger 1042.

[0053] like Figure 6-10As shown, in one embodiment, the volume adjustment unit 104 is provided with a limiting structure for controlling the maximum movement distance 60 of the adjusting plunger 1042. In one embodiment, the limiting structure in the volume adjustment unit 104 includes a limiting flange 1042c provided at one end of the adjusting plunger 1042 in the volume adjustment unit 104 opposite to the output end connection end of the motor 1043 in the volume adjustment unit 104, and a valve body step surface 1041c is provided on the inner wall of the second valve body 1041 in the volume adjustment unit 104. When the adjusting plunger 1042 in the volume adjustment unit 104 moves under the drive of the motor 1043 in the volume adjustment unit 104 so that the volume of the second sealed cavity 1044 in the volume adjustment unit 104 reaches the minimum, the limiting flange 1042c contacts the valve body step surface 1041c, thereby limiting the adjusting plunger 1042 in the volume adjustment unit 104 from continuing to move to squeeze the volume of the second sealed cavity 1044. A ball head 1043a is provided at the top of the output end of the motor 1043 in the volume regulating unit 104, and a conical surface 1042b is provided at the bottom of the threaded hole 1042a in the regulating plunger 1042. When the regulating plunger 1042 in the volume regulating unit 104 moves driven by the motor 1043 in the volume regulating unit 104 so that the volume of the second sealed cavity 1044 in the volume regulating unit 104 reaches the maximum, the ball head 1043a contacts the conical surface 1042b, thereby limiting the regulating plunger 1042 in the volume regulating unit 104 from continuing to move to expand the volume of the second sealed cavity 1044.

[0054] It can be understood that by setting a limit structure to control the maximum movement distance 60 of the adjusting plunger 1042, the internal space can be fully utilized, the length of the second valve body 1041 in the volume adjustment unit 104 can be shortened, thereby shortening the length of the actuator 10, making the setting more compact and reasonable.

[0055] like Figure 6 As shown, in one embodiment, a portion of the regulating plunger 1042 in the volume regulating unit 104 can enter the passage for communication. Compared with conventional arrangements, this arrangement can further reduce the length of the second valve body 1041 in the volume regulating unit 104.

[0056] In order to prevent the adjusting plunger 1042 in the volume adjusting unit 104 from rotating, as Figure 7 and Fig. 9 As shown, in one embodiment, the regulating plunger 1042 in the volume regulating unit 104 is provided with a plurality of protrusions 1042d evenly distributed around the circumference, and the inner wall of the second valve body 1041 in the volume regulating unit 104 is provided with a plurality of straight grooves 1041d that cooperate with the protrusions 1042d in the regulating plunger 1042 to form a rotation-stopping structure. Specifically, the plurality of protrusions 1042d are evenly distributed around the circumference of the limiting flange 1042c in the regulating plunger 1042.

[0057] like Fig.10As shown, in one embodiment, a liquid guiding groove 1042 e is provided on an end surface of an adjusting plunger 1042 in the volume adjusting unit 104 close to the third passage 105 in the actuator 10 .

[0058] It can be understood that the end face of the regulating plunger 1042 in the volume regulating unit 104 close to the third passage 105 in the actuator 10 is the end face that encloses the second sealed cavity 1044 in the volume regulating unit 104. Compared with the conventional setting, the setting of the liquid guiding groove 1042e can make the gap between the regulating plunger 1042 and the valve body plane smaller, and the structure is more compact, so that the area of ​​the radiating outflow channel of the liquid in the second sealed cavity 1044 in the volume regulating unit 104 through the annular plane gap of the liquid guiding groove 1042e is increased from πAh / 2 to πBh / 2;.

[0059] In order to make the structure of the actuator 10 more compact, Figure 3 , Figure 5 As shown, in one embodiment, the first valve body 1021 in the switch control unit 102 is arranged in parallel with the second valve body 1041 in the volume adjustment unit 104, and the second passage 103 in the actuator 10 is arranged vertically with the first valve body 1021 in the switch control unit 102 and the second valve body 1041 in the volume adjustment unit 104. Further, the first passage 101 in the actuator 10 is arranged in parallel with the third passage 105 in the actuator 10.

[0060] In order to make the structure of the actuator 10 more compact, Figure 4 As shown, in one embodiment, the second passage 103 in the actuator 10 is sealed to the outside by a sealing ball 1031 .

[0061] The controller 30 is electrically connected to the sensor 20 , the switch control unit 102 in the actuator 10 , and the volume adjustment unit 104 in the actuator 10 .

[0062] The controller 30 determines the braking state of the vehicle based on the signal transmitted by the sensor 20 .

[0063] like Figure 2 As shown, in one embodiment, the sensor 20 includes an environment perception sensor 201 disposed on the vehicle and a wheel speed sensor 202 disposed at the wheel.

[0064] When the controller 30 determines that the vehicle is in a locked state, the controller 30 controls the switch control unit 102 in the actuator 10 to be disconnected, and at the same time, the controller 30 controls the volume adjustment unit 104 in the actuator 10 to adjust the hydraulic pressure at the brake caliper 50 .

[0065] like Figure 2 and Figure 6As shown, in one embodiment, the controller 30 controls the volume adjustment unit 104 in the actuator 10 to adjust the hydraulic pressure at the brake caliper 50, as follows:

[0066] The controller 30 controls the motor 1043 in the volume regulating unit 104 to drive the regulating plunger 1042 in the volume regulating unit 104 to move in the volume chamber of the second valve body 1041 in the volume regulating unit 104 so that the volume of the second sealed chamber 1044 in the volume regulating unit 104 is reduced to perform pressurization; and

[0067] The controller 30 controls the motor 1043 in the volume regulating unit 104 to drive the regulating plunger 1042 in the volume regulating unit 104 to move in the volume cavity of the second valve body 1041 in the volume regulating unit 104 so that the volume of the second sealed cavity 1044 in the volume regulating unit 104 increases to perform decompression.

[0068] It can be understood that when the vehicle is in a normal state, the brake master pump 40 works normally, the controller 30 controls the switch control unit 102 in the actuator 10 to be connected, and the controller 30 controls the motor 1043 in the volume adjustment unit 104 to drive the adjusting plunger 1042 in the volume adjustment unit 104 to return to the initial position, and the hydraulic pressure generated by the brake master pump 40 passes through the first passage 101 in the actuator 10, the second passage 103 in the actuator 10, and the third passage 105 in the actuator 10 in sequence to reach the brake caliper 50 to build pressure. When the vehicle is in a locked state, the controller 30 controls the switch control unit 102 in the actuator 10 to be disconnected, and at the same time, the controller 30 controls the volume adjustment unit 104 in the actuator 10 to adjust the movement of the plunger 1042 to adjust the volume of the second sealed chamber 1044 in the actuator 10, thereby realizing intelligent pressure increase and pressure reduction adjustment of the hydraulic pressure at the brake caliper 50; specifically, when the switch control unit 102 is disconnected, the hydraulic pressure generated by the brake master pump 40 is isolated in the first sealed chamber 1023 in the switch control unit 102 and cannot be transmitted to the volume adjustment unit 104 through the second passage 103 in the actuator 10. A reduction in the volume of the second sealed chamber 1044 in the volume regulating unit 104 will increase the hydraulic pressure retained therein; conversely, an increase in the volume of the second sealed chamber 1044 in the volume regulating unit 104 will reduce the hydraulic pressure retained therein. The hydraulic pressure in the second sealed chamber 1044 in the volume regulating unit 104 is always kept consistent with the hydraulic pressure at the brake caliper 50 through the third passage 105 in the actuator 10, thereby achieving the purpose of active pressure increase and pressure reduction. The controller 30 controls the volume regulating unit 104 to intelligently increase and reduce pressure to quickly eliminate the locked state of the vehicle and restore it to a normal braking state.

[0069] like Figure 2As shown, in one embodiment, when the controller 30 determines that the vehicle is in a brake failure state, the controller 30 controls the switch control unit 102 in the actuator 10 to disconnect, and at the same time, the controller 30 controls the volume adjustment unit 104 in the actuator 10 to provide braking force instead of the brake master pump 40.

[0070] It can be understood that when the vehicle is in a brake failure state, the present invention can be used as a backup brake to replace the brake master pump 40 to perform active pressure building.

[0071] A method for using a two-wheeled vehicle safe driving auxiliary electronic stability system, the method for using the two-wheeled vehicle safe driving auxiliary electronic stability system comprising the following steps:

[0072] First, the controller 30 is used to determine the braking state of the vehicle based on the signal transmitted by the sensor 20;

[0073] Secondly, if the controller 30 determines that the vehicle is in a locked state, the controller 30 is used to control the switch control unit 102 in the actuator 10 to be disconnected, and the controller 30 is used to control the motor 1043 in the volume adjustment unit 104 to drive the adjustment plunger 1042 in the volume adjustment unit 104 to move to adjust the volume of the second sealed chamber 1044 in the actuator 10;

[0074] Then, if the controller 30 determines that the vehicle is in a brake failure state, the controller 30 controls the switch control unit 102 in the actuator 10 to be disconnected, and at the same time uses the controller 30 to control the motor 1043 in the volume adjustment unit 104 to drive the adjustment plunger 1042 in the volume adjustment unit 104 to reciprocate;

[0075] Finally, if the controller 30 determines that the vehicle is in a normal state, the controller 30 controls the switch control unit 102 in the actuator 10 to be connected, and at the same time uses the controller 30 to control the motor 1043 in the volume adjustment unit 104 to drive the adjustment plunger 1042 in the volume adjustment unit 104 to reset and then close, and at the same time uses the control main pump to execute pressure building.

[0076] The present invention has a compact structure and eliminates the need for a plunger pump, a one-way valve, an accumulator, and four groups of solenoid valves including a pressure limiting valve, a suction valve, a boost valve, and a pressure reducing valve. Only one group of normally open solenoid valves 1022 and a volume adjustment unit 104 is provided, thereby reducing the number of system parts, reducing the system volume, and reducing the system cost. The present invention also has both a vehicle anti-lock braking function and a backup brake active pressure building function, and can achieve a smooth brake adjustment feel, reduce the difficulty of brake adjustment operation, and reduce the installation space requirement, thereby achieving the purpose of improving driving safety performance and brake service life.

[0077] The above description is merely a preferred embodiment of one or more embodiments of the present specification and is not intended to limit one or more embodiments of the present specification. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present specification shall be included in the scope of protection of one or more embodiments of the present specification.

Claims

1. A two-wheeled vehicle safe driving auxiliary electronic stability system, characterized in that: include: an actuator, comprising a first passage, a switch control unit connected to a brake master pump through the first passage, a second passage, a volume adjustment unit connected to the switch control unit through the second passage, and a third passage connecting the volume adjustment unit to a brake caliper; A sensor for sensing the braking status of a vehicle; A controller for receiving the signal transmitted by the sensor and controlling the switch of the actuator, which is electrically connected to the sensor, the switch control unit in the actuator and the volume adjustment unit in the actuator; and The controller determines the braking state of the vehicle based on the signal transmitted by the sensor; When the controller determines that the vehicle is in a locked state, the controller controls the switch control unit in the actuator to be disconnected, and at the same time, the controller controls the volume adjustment unit in the actuator to adjust the hydraulic pressure at the brake caliper.

2. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 1, characterized in that: When the controller determines that the vehicle is in a brake failure state, the controller controls the switch control unit in the actuator to disconnect, and at the same time, the controller controls the volume adjustment unit in the actuator to provide braking force instead of the brake master pump.

3. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 1, characterized in that: The switch control unit comprises: a first valve body; A normally open solenoid valve is disposed in the first valve body; and When the controller controls the normally open solenoid valve to be disconnected, the normally open solenoid valve separates the cavity of the first valve body into two parts isolated from each other, wherein the part communicating with the second passage in the actuator is the first sealed cavity.

4. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 1, characterized in that: The volume adjustment unit comprises: A second valve body; an adjusting plunger, disposed in the second valve body, wherein the outer wall of the adjusting plunger is in sealing contact with the inner wall of the second valve body, and the adjusting plunger divides the cavity of the second valve body into two parts isolated from each other, wherein the part connected with both the second passage in the actuator and the third passage in the actuator is the second sealed cavity; and A motor, wherein the output end of the motor is connected to the regulating plunger, driving the regulating plunger to perform reciprocating motion in the cavity of the second valve body.

5. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 4, characterized in that: The controller controls the volume adjustment unit in the actuator to adjust the hydraulic pressure at the brake caliper, including: The controller controls the motor in the volume regulating unit to drive the regulating plunger in the volume regulating unit to move in the volume chamber of the second valve body in the volume regulating unit so that the volume of the second sealed chamber in the volume regulating unit is reduced to perform pressurization; and The controller controls the motor in the volume regulating unit to drive the regulating plunger in the volume regulating unit to move in the volume cavity of the second valve body in the volume regulating unit, so that the volume of the second sealed cavity in the volume regulating unit increases to perform decompression.

6. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 4, characterized in that: The volume adjustment unit is provided with a limiting structure for controlling the maximum movement distance of the adjustment plunger.

7. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 4, characterized in that: The regulating plunger in the volume regulating unit is provided with a plurality of protrusions evenly distributed around the circumference, and the inner wall of the second valve body in the volume regulating unit is provided with a plurality of straight grooves cooperating with the protrusions in the regulating plunger to form a rotation-stopping structure.

8. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 4, characterized in that: A liquid guiding groove is provided on an end surface of an adjusting plunger in the volume adjusting unit close to the third passage in the actuator.

9. The two-wheeled vehicle safe driving auxiliary electronic stability system according to claim 1, characterized in that: The first valve body in the switch control unit is arranged in parallel with the second valve body in the volume regulating unit, and the second passage in the actuator is arranged vertically with the first valve body in the switch control unit and the second valve body in the volume regulating unit.

10. A method for using a two-wheeled vehicle safe driving auxiliary electronic stability system, characterized in that: Based on the two-wheeled vehicle safe driving auxiliary electronic stability system according to any one of claims 1 to 9, the method for using the two-wheeled vehicle safe driving auxiliary electronic stability system comprises the following steps: First, using the controller to determine the braking state of the vehicle based on the signal transmitted by the sensor; Secondly, if the controller determines that the vehicle is in a locked state, the controller is used to control the switch control unit in the actuator to be disconnected, and at the same time, the controller is used to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to move so as to adjust the volume of the second sealed chamber in the actuator; Then, if the controller determines that the vehicle is in a brake failure state, the controller controls the switch control unit in the actuator to disconnect, and at the same time uses the controller to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to reciprocate; Finally, if the controller determines that the vehicle is in a normal state, the controller controls the switch control unit in the actuator to be connected, and at the same time uses the controller to control the motor in the volume adjustment unit to drive the adjustment plunger in the volume adjustment unit to reset and then close, and uses the control main pump to execute pressure building.

Citation Information

Patent Citations

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