Normally-open dual-channel air pressure adjusting device of electric control braking system

Abstract

The utility model discloses a normally open two-channel air pressure adjusting device of an electric control braking system, which comprises an air control part and an electric control part, the air control part comprises a valve body, an aluminum cover, a sensor assembly, a circuit board, a connector, a silencer, a pilot valve cover and an air pressure adjusting unit, the valve body is connected with a normally open solenoid valve and a normally closed solenoid valve, and the valve body is connected with a valve rod. The circuit board, the normally-open solenoid valve and the normally-closed solenoid valve are connected through the wire harness, and signal receiving and feedback are achieved. The electromagnetic coil assembly and the sensor assembly are integrated into a whole, the sensor assembly, the whole gas circuit, an electrical circuit and other structural designs are simplified, installation is convenient, installation space is saved, disassembly is convenient, and the electromagnetic sensor is suitable for large-scale application and popularization.

Description

Technical Field

[0001] This utility model belongs to the field of air pressure regulation technology, and specifically relates to a normally open dual-channel air pressure regulation device for an electrically controlled braking system. Background Technology

[0002] With the development of the automotive industry, electronic braking systems are being used more and more widely. Dual-channel air pressure regulation devices use an electronic control system to replace traditional mechanical transmission to control the braking system. They offer advantages such as faster braking response time, shorter braking distance compared to ABS, more precise adjustment, and are more space-saving. They encompass all the functions of ABS and can be expanded to include more chassis control system functions, making them an active safety device for automobiles.

[0003] Existing braking systems employ a fully redundant service brake design to meet the demands of autonomous driving. The dual-channel air pressure regulator is a key component of the braking system. Its function is to simulate and replace the vehicle's braking system in air pressure control, according to the braking requirements of the vehicle controller, to decelerate or stop the vehicle during autonomous driving operations. In existing braking systems, components such as the electromagnetic coils and pressure sensors in the electronic control unit typically need to be installed separately, resulting in complex design, large space requirements, and cumbersome disassembly and assembly. Utility Model Content

[0004] The main purpose of this utility model is to provide a normally open dual-channel air pressure regulating device for an electric braking system, which solves the problem that in existing braking systems, components such as electromagnetic coils and pressure sensors in the electronic control part generally need to be installed separately, resulting in complex design, large space occupation, and cumbersome disassembly and assembly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a normally open dual-channel air pressure regulating device for an electric control braking system, comprising an air control part and an electric control part. The air control part includes a valve body, an aluminum cover, a sensor assembly, a circuit board, a connector, a muffler, a pilot valve cover, and an air pressure regulating unit. The valve body is connected to a normally open solenoid valve and a normally closed solenoid valve.

[0006] Furthermore, the aluminum cover, connector, and valve body are fixedly connected by a first mounting screw, the sensor assembly, circuit board, and connector are fixedly connected by a second mounting screw, and the normally open solenoid valve, normally closed solenoid valve, and valve body are fixedly connected by a third mounting screw.

[0007] Furthermore, the air pressure regulating unit includes a first air inlet, a first air outlet, a second air inlet, and a second air outlet. The first air inlet and the first air outlet are located at the left end of the valve body, and the second air inlet and the second air outlet are located at the right end of the valve body. The sensor assembly is independent of the first air outlet and the second air outlet.

[0008] Furthermore, the circuit board, normally open solenoid valve, and normally closed solenoid valve are connected by a wiring harness to achieve signal reception and feedback.

[0009] Furthermore, there are two sets of air pressure regulating units, which have the same function and are independent of each other. The two sets of air pressure regulating units share a set of silencers.

[0010] Compared with the prior art, the present invention has the following advantages: The present invention integrates the electromagnetic coil assembly and the sensor assembly into one unit, and simplifies the sensor assembly, the entire air circuit, and the electrical wiring structure design, which facilitates installation, saves installation space, and is easy to disassemble. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a normally open dual-channel air pressure regulating device for an electrically controlled braking system according to this utility model;

[0012] Figure 2 This is a front view of a normally open dual-channel air pressure regulating device for an electrically controlled braking system according to this utility model;

[0013] Figure 3 This is a cross-sectional structural schematic diagram of the normally closed solenoid valve of a normally open dual-channel pneumatic pressure regulating device for an electrically controlled braking system according to this utility model.

[0014] Figure 4 This is a cross-sectional schematic diagram of the normally open solenoid valve of a normally open dual-channel pneumatic pressure regulating device for an electrically controlled braking system according to this utility model.

[0015] Figure 5 This is a cross-sectional structural diagram of a normally open dual-channel air pressure regulating device silencer for an electrically controlled braking system according to this utility model.

[0016] In the diagram: 1. Silencer; 2. Valve body; 3. Sensor assembly; 4. Connector; 5. Circuit board; 6. First mounting screw; 7. Aluminum cover; 8. Second mounting screw; 9. Pilot valve cover; 10. Normally open solenoid valve; 11. Normally closed solenoid valve; 12. Third mounting screw; 13. First air inlet; 14. First air outlet; 15. Second air inlet; 16. Second air outlet. Detailed Implementation

[0017] 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.

[0018] Example 1

[0019] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This embodiment discloses a normally open dual-channel air pressure regulating device for an electric control braking system, including an air control part and an electric control part. The air control part includes a valve body 2, an aluminum cover 7, a sensor assembly 3, a circuit board 5, a connector 4, a muffler 1, a pilot valve cover 9, and an air pressure regulating unit.

[0020] Furthermore, the valve body 2 is connected to a normally open solenoid valve 10 and a normally closed solenoid valve 11. Specifically, the pressure-reducing solenoid valve on the valve body 2 is a normally closed solenoid valve 11, and the pressure-holding solenoid valve on the valve body 2 is a normally open solenoid valve 10.

[0021] Furthermore, the aluminum cover 7, connector 4 and valve body 2 are fixedly connected by the first mounting screw 6, the sensor assembly 3, circuit board 5 and connector 4 are fixedly connected by the second mounting screw 8, and the normally open solenoid valve 10 and normally closed solenoid valve 11 are fixedly connected to the valve body 2 by the third mounting screw 12.

[0022] Furthermore, the air pressure regulating unit includes a first air inlet 13, a first air outlet 14, a second air inlet 15, and a second air outlet 16. The valve body 2 has a first air inlet 13 and a first air outlet 14 at its left end, and a second air inlet 15 and a second air outlet 16 at its right end. The sensor assembly 3 is independent of the first air outlet 14 and the second air outlet 16.

[0023] In this embodiment, circuit board 5, normally open solenoid valve 10, and normally closed solenoid valve 11 are connected by a wiring harness to achieve signal reception and feedback. The entire regulating device communicates with the ECU via cables through circuit board 5, normally open valve 10, and normally closed valve 11.

[0024] This patent integrates the electromagnetic coil assembly and the sensor assembly 3 into one unit, and simplifies the design of the sensor assembly 3, the entire air path, and the electrical wiring, making it easier to install, saving installation space, and facilitating disassembly.

[0025] Example 2

[0026] In this embodiment, there are two sets of air pressure regulating units, which are functionally identical and independent of each other. The two sets of functionally identical and independent air pressure regulating units share a set of silencers 1, which can save space. When exhausting, the two sets of normally closed solenoid valves 11 are energized, and the first output port 14 and the second output port 16 are connected to the silencer 1.

[0027] This structure, as an electronically controlled braking system, can meet the vehicle braking requirements. It is a braking module with a compact structure, high integration, and strong functionality.

[0028] Furthermore, this device integrates two air pressure sensors, which can monitor the output air pressure in real time.

[0029] This device is used in regenerative braking systems. Internally, it consists of two functionally identical but independent air pressure regulating units, one for controlling the output air pressure of the front axle and the other for the rear axle. The device integrates two intake solenoid valves and two exhaust solenoid valves, used in two sets. Each air pressure regulating unit can precisely control the brake air pressure according to the controller's output commands. Simultaneously, the device integrates two air pressure sensors to monitor the output air pressure in real time, thereby adjusting the front and rear brake air pressures of the front and rear axles to achieve the overall vehicle braking safety electronic control system.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A normally open dual-channel air pressure regulating device for an electrically controlled braking system, characterized in that: It includes a pneumatic control section and an electronic control section. The pneumatic control section includes a valve body (2), an aluminum cover (7), a sensor assembly (3), a circuit board (5), a connector (4), a silencer (1), a pilot valve cover (9), and a pressure regulating unit. The valve body (2) is connected to a normally open solenoid valve (10) and a normally closed solenoid valve (11). The aluminum cover (7), connector (4) and valve body (2) are fixedly connected by the first mounting screw (6), the sensor assembly (3), circuit board (5) and connector (4) are fixedly connected by the second mounting screw (8), and the normally open solenoid valve (10), normally closed solenoid valve (11) and valve body (2) are fixedly connected by the third mounting screw (12). The air pressure regulating unit includes a first air inlet (13), a first air outlet (14), a second air inlet (15), and a second air outlet (16). The first air inlet (13) and the first air outlet (14) are located at the left end of the valve body (2), and the second air inlet (15) and the second air outlet (16) are located at the right end of the valve body (2). The sensor assembly (3) is independent of the first air outlet (14) and the second air outlet (16). The circuit board (5), normally open solenoid valve (10), and normally closed solenoid valve (11) are connected by a wire harness to realize signal reception and feedback. The pressure regulating unit consists of two sets, which have the same function and are independent of each other. The two sets of pressure regulating units share a set of silencers (1).

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