Two-wheeled vehicle hydraulic ABS system

Abstract

A hydraulic ABS system for a two-wheeled vehicle includes a controller and an actuator. The controller is mounted on the actuator, which includes a valve body, a motor, an accumulator, a solenoid valve, and a pump assembly. The motor, accumulator, solenoid valve, and pump assembly are all located inside the valve body. Several interconnected valve body flow channels are formed within the valve body. The solenoid valves are located within their respective valve body flow channels. The solenoid valves include two normally open solenoid valves and two normally closed solenoid valves. The valve body orifices include normally open solenoid valve orifices and normally closed solenoid valve orifices corresponding to the normally open and normally closed solenoid valves. An oil inlet and an oil outlet are provided on the valve body. An inclined flow channel is provided between adjacent normally open and normally closed solenoid valves. By providing inclined flow channels on the inner walls of the normally open and normally closed solenoid valve orifices, the number of external process holes in the valve body is reduced, avoiding the need to seal the process holes with steel balls and preventing product sealing defects caused by poor riveting of the sealing steel balls.

Description

Technical Field

[0001] This utility model relates to the field of automotive ABS technology, specifically to a hydraulic ABS system for a two-wheeled vehicle. Background Technology

[0002] Hydraulic ABS for two-wheeled vehicles is applied to the braking system to prevent wheel lock-up during braking. When the two-wheeled vehicle brakes, the hydraulic ABS controller switches the coils and motor on and off based on the collected wheel speed signals, thereby controlling the ABS actuator (HCU), such as controlling the opening and closing of the solenoid valve. This, in conjunction with the motor driving the piston movement of the pump assembly, draws brake fluid from the wheel cylinder to the master cylinder. Alternatively, if the solenoid valve and motor do not operate, brake fluid from the master cylinder is pumped into the wheel cylinder, thus depressurizing or pressurizing the wheel cylinder and controlling the wheels to maintain an anti-lock state. However, in existing technologies, the flow channel between the normally open and normally closed solenoid valve orifices typically requires multiple external process holes on the valve body and is sealed with sealing steel balls. This not only increases the manufacturing difficulty but also easily leads to sealing problems due to poor sealing. Summary of the Invention

[0003] In view of this, the present invention provides a hydraulic ABS system for two-wheeled vehicles.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic ABS system for a two-wheeled vehicle includes a controller and an actuator. The controller is mounted on the actuator, which includes a valve body, a motor, an accumulator, a solenoid valve, and a pump assembly. The motor, accumulator, solenoid valve, and pump assembly are all located inside the valve body. Several interconnected valve body flow channels are formed within the valve body. The solenoid valves are located within corresponding valve body flow channels. Each solenoid valve includes two normally open solenoid valves and two normally closed solenoid valves. The valve body orifices include normally open solenoid valve orifices and normally closed solenoid valve orifices corresponding to the normally open and normally closed solenoid valves. An oil inlet and an oil outlet are provided on the valve body. An inclined flow channel is provided between adjacent normally open and normally closed solenoid valves. The inclined flow channel has a first inclined portion and a second inclined portion, which are respectively connected to the normally open solenoid valve orifice and the normally closed solenoid valve orifice.

[0005] Preferably, the inclination angle of the first inclined portion and the second inclined portion is 40°, and the first inclined portion and the second inclined portion are respectively inclined towards the lower center of the normally open solenoid valve hole and the normally closed solenoid valve hole.

[0006] Preferably, the normally open solenoid valve orifice has an oil inlet channel and an oil outlet channel on both sides, which connect the oil inlet and the oil outlet. The oil inlet channel is set at a 70° angle from the normally open solenoid valve orifice toward the oil inlet, and the oil outlet channel is set at a 40° angle from the normally open solenoid valve orifice toward the oil outlet.

[0007] Preferably, the controller includes a housing, a coil, a circuit board, and a top cover, with a sealed cavity formed between the housing and the top cover, the circuit board disposed within the sealed cavity, the coil press-fitted between the housing and the actuator, and the housing connected to the actuator by bolts.

[0008] Preferably, the housing is provided with housing pins, the coil is provided with coil pins, one end of the coil pins passes through the housing and connects to the circuit board, the housing pins are located on the side of the housing close to the circuit board, and the housing pins are connected to the circuit board.

[0009] Preferably, both the housing pin and the coil pin are fisheye pins, and both the housing pin and the coil pin are interference-fitted with the circuit board.

[0010] Preferably, the motor is a DC high-speed motor without a reducer.

[0011] The beneficial effects of this utility model are as follows: by opening inclined flow channels on the inner walls of the normally open solenoid valve hole and the normally closed solenoid valve hole, the number of external process holes of the valve body is reduced, avoiding the need to seal the process holes with sealing steel balls, and eliminating the situation of poor product sealing caused by poor riveting of sealing steel balls. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the controller structure breakdown; Appendix Figure 3 This is a schematic diagram showing the exploded structure of the actuator; Appendix Figure 4 This diagram illustrates the connection between the housing pins and the circuit board. Appendix Figure 5 A schematic diagram showing the connection between the normally open solenoid valve port and the normally closed solenoid valve port. Appendix Figure 6 This is a schematic diagram of a normally open solenoid valve orifice. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] This utility model provides the following technical solution: As attached Figure 1-6 As shown, this utility model discloses a hydraulic ABS system for a two-wheeled vehicle, including a controller 1 and an actuator 2. The controller 1 is mounted on the actuator 2. The actuator 2 includes a valve body 3, a motor 4, an accumulator 5, a solenoid valve 6, and a pump assembly 7. The motor 4, accumulator 5, solenoid valve 6, and pump assembly 7 are all located inside the valve body 3. The valve body 3 forms several interconnected valve body flow channels 8. The solenoid valve 6 is located in the corresponding valve body flow channel 8. The solenoid valve 6 includes two normally open solenoid valves 9 and two normally open solenoid valves 9. The normally closed solenoid valve 10 has a flow channel within the valve body 3, including normally open solenoid valve holes 11 and 12 corresponding to normally open solenoid valves 9 and 10, respectively. The valve body 3 has an oil inlet 13 and an oil outlet 14. An inclined flow channel 15 is provided between adjacent normally open solenoid valves 9 and 10. The inclined flow channel 15 has a first inclined portion 16 and a second inclined portion 17, which are respectively connected to the normally open solenoid valve hole 11 and the normally closed solenoid valve hole 12. Specifically, in this design, by providing inclined flow channels 15 on the inner walls of the normally open solenoid valve hole 11 and the normally closed solenoid valve hole 12, the number of external process holes in the valve body 3 is reduced, avoiding the need to seal the process holes with steel balls. This reduces material usage and eliminates the possibility of poor product sealing due to improper riveting of the steel balls.

[0017] Furthermore, the first inclined portion 16 and the second inclined portion 17 both have an inclination angle of 40°. The first inclined portion 16 and the second inclined portion 17 are respectively inclined towards the lower center of the normally open solenoid valve hole 11 and the normally closed solenoid valve hole 12. Specifically, in this embodiment, the 40° inclination angle allows the oil to smoothly transition from the normally open solenoid valve hole 11 to the normally closed solenoid valve hole 12, or from the normally closed solenoid valve hole 12 to the normally open solenoid valve hole 11, when flowing through the inclined flow channel 15, reducing the resistance to oil flow and improving the system's response speed and stability. In addition, the inclined flow channel 15 can also effectively reduce eddies and turbulence in the oil within the valve body 3, reducing the system's energy consumption and noise. Meanwhile, the inclined flow channel 15 is inclined towards the lower center of the normally open solenoid valve hole 11 and the normally closed solenoid valve hole 12, which allows the oil to better fit the inner wall of the valve body 3 when flowing through the inclined flow channel 15, further improving the sealing performance of the system.

[0018] Furthermore, the normally open solenoid valve orifice 11 has an inlet channel 18 and an outlet channel 19 on both sides, connecting the inlet port 13 and the outlet port 14. The inlet channel 18 is inclined at 70° from the normally open solenoid valve orifice 11 towards the inlet port 13, and the outlet channel 19 is inclined at 40° from the normally open solenoid valve orifice 11 towards the outlet port 14. Specifically, in this embodiment, the inclined arrangement of the inlet channel 18 and the outlet channel 19 can further optimize the flow path of the oil. The 70° inclination angle in the inlet channel 18 allows the oil to obtain a larger flow velocity and impact force when flowing into the normally open solenoid valve orifice 11, which helps the oil to quickly fill the entire valve body flow channel 8 and improves the system response speed. The 40° inclination angle in the outlet channel 19 slows down the flow velocity when the oil flows out of the normally open solenoid valve orifice 11, making the oil flow out more smoothly, reducing the impact and vibration of the oil, and further reducing the noise of the system. In addition, the inclined arrangement of the oil inlet channel 18 and the oil outlet channel 19 can also create a certain vortex effect during the flow of oil, which helps to separate impurities and bubbles in the oil, thereby improving the purity of the oil and the stability of the system.

[0019] Furthermore, the controller 1 includes a housing 20, a coil 21, a circuit board 22, and a top cover 23. A sealed cavity is formed between the housing 20 and the top cover 23. The circuit board 22 is disposed in the sealed cavity. The coil 21 is press-fitted between the housing 20 and the actuator 2. The housing 20 is connected to the actuator 2 by bolts 24.

[0020] Furthermore, a housing pin 25 is provided on the housing 20, and a coil pin 26 is provided on the coil 21. One end of the coil pin 26 passes through the housing 20 and connects to the circuit board 22. The housing pin 25 is located on the side of the housing 20 closest to the circuit board 22 and is connected to the circuit board 22. Specifically, in this embodiment, the housing pin 25 is embedded in the housing 20 and connected to the circuit board 22, ensuring stable electrical signal transmission between the circuit board 22 and the coil 21, and making it less susceptible to external interference. Simultaneously, the connection of one end of the coil pin 26 through the housing 20 to the circuit board 22 further enhances the internal electrical connection performance of the controller 1. In addition, the housing pin 25 and the coil pin 26 are both located on the side closest to the circuit board 22, making the overall structure of the controller 1 more compact, reducing space occupation, and improving system integration.

[0021] Furthermore, both the housing pin 25 and the coil pin 26 are fisheye pins, and both are interference-fitted with the circuit board 22. Specifically, in this embodiment, the connection between the coil pin 26, the housing pin 25, and the circuit board 22 uses a fisheye pin interference fit with an interference amount of 0.2mm. Compared with traditional soldering, this avoids the problem of weak connection caused by poor soldering, eliminates problems such as solder splattering during soldering, and also reduces equipment investment, maintenance costs, and production time.

[0022] Furthermore, the motor 4 is a DC high-speed motor 4 without a reducer. Specifically, in this embodiment, using a DC high-speed motor 4 without a reducer allows for higher motor speeds and greater output speeds, thereby improving the system's response speed and braking performance. Simultaneously, the reducer-less design reduces system complexity and failure rate, improving system reliability and stability. In addition, the use of the DC high-speed motor 4 effectively reduces system energy consumption and noise, improving the overall system performance.

[0023] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydraulic ABS system for a two-wheeled vehicle, characterized in that: The device includes a controller and an actuator. The controller is mounted on the actuator. The actuator includes a valve body, a motor, an accumulator, a solenoid valve, and a pump assembly. The motor, accumulator, solenoid valve, and pump assembly are all located inside the valve body. Several interconnected valve body flow channels are formed inside the valve body. The solenoid valves are located in the corresponding valve body flow channels. The solenoid valves include two normally open solenoid valves and two normally closed solenoid valves. The valve body orifices include normally open solenoid valve orifices and normally closed solenoid valve orifices corresponding to the normally open and normally closed solenoid valves. An oil inlet and an oil outlet are provided on the valve body. An inclined flow channel is provided between adjacent normally open and normally closed solenoid valves. The inclined flow channel has a first inclined portion and a second inclined portion. The first inclined portion and the second inclined portion are respectively connected to the normally open solenoid valve orifice and the normally closed solenoid valve orifice.

2. The hydraulic ABS system for two-wheeled vehicles according to claim 1, characterized in that: The first inclined portion and the second inclined portion are both inclined at an angle of 40°. The first inclined portion and the second inclined portion are respectively inclined towards the lower center of the normally open solenoid valve hole and the normally closed solenoid valve hole.

3. The hydraulic ABS system for two-wheeled vehicles according to claim 1, characterized in that: The normally open solenoid valve orifice has an oil inlet channel and an oil outlet channel on both sides, which connect the oil inlet and the oil outlet. The oil inlet channel is set at a 70° angle from the normally open solenoid valve orifice toward the oil inlet, and the oil outlet channel is set at a 40° angle from the normally open solenoid valve orifice toward the oil outlet.

4. The hydraulic ABS system for two-wheeled vehicles according to claim 1, characterized in that: The controller includes a housing, a coil, a circuit board, and a top cover. A sealed cavity is formed between the housing and the top cover. The circuit board is disposed in the sealed cavity. The coil is press-fitted between the housing and the actuator. The housing is connected to the actuator by bolts.

5. The hydraulic ABS system for two-wheeled vehicles according to claim 4, characterized in that: The box body is provided with a box body pin, and the coil is provided with a coil pin. One end of the coil pin passes through the box body and is connected to the circuit board. The box body pin is located on the side of the box body close to the circuit board and is connected to the circuit board.

6. The hydraulic ABS system for two-wheeled vehicles according to claim 5, characterized in that: Both the housing pins and the coil pins are fisheye pins, and both the housing pins and the coil pins are interference-fitted with the circuit board.

7. The hydraulic ABS system for two-wheeled vehicles according to claim 1, characterized in that: The motor is a DC high-speed motor without a reducer.

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