Pneumatic electronic parking brake integrated valve

Abstract

The invention discloses a pneumatic electronic parking brake integrated valve which is used for connecting with an air storage tank and a parking brake air chamber. The integrated valve comprises a relay valve assembly (M5), a solenoid valve assembly (M234), a parking brake controller assembly (M10), an upper shell (55) and a lower shell (101), the relay valve assembly (M5) comprises a relay valve (5), the solenoid valve assembly (M234) comprises a first solenoid valve (2), a second solenoid valve (3) and a third solenoid valve (4), the parking brake controller assembly (M10) comprises a parking brake controller (10), the upper shell (55) is detachably and fixedly connected with the lower shell (101), the solenoid valve assembly (M234) is adjacent to the relay valve assembly (M5), the mounting surface of the solenoid valve assembly (M234) is mutually perpendicular to that of the relay valve assembly (M5), both the solenoid valve assembly (M234) and the relay valve assembly (M5) are arranged in the upper shell (55), and the parking brake controller assembly (M10) is arranged at the bottom of the integrated valve and mounted in the lower shell (101). According to the integrated valve, the parking brake controller, three solenoid valves and the relay valve are effectively integrated, pipeline connection is simplified, manufacturing and assembling of components are simplified, and the integrated valve is compact in structure, low in cost and reliable in performance.

Description

technical field [0001] The invention belongs to the technical field of automobile brake components, in particular to a pneumatic electronic parking brake integrated valve with compact structure, low cost and reliable performance. Background technique [0002] Pneumatic electronic parking brake system (EPB, Electronic Parking Brake) refers to the integration of temporary braking during driving and long-term braking after parking, and realizes parking braking by electronic control. technology, which is a category of automotive brake-by-wire systems. The emergence and application of the electronic parking brake system has further promoted the integration of the electronic control system of the vehicle, reduced the complexity of the body structure, and improved the reliability of the system. [0003] In the existing commonly used pneumatic EPB systems, each control valve is installed on the bracket respectively, and then the working port, the air inlet and the exhaust port of e...

AI Technical Summary

Problems solved by technology

[0004] However, this installation method of installing each control valve separately and realizing the communication of each control valve through an external pipeline not only makes the installation process more troublesome and difficult to repair and maintain, but also makes the length of the pipeline longer and increases the braking response time, resulting in The braking distance is increased; and the entire air pressure control system takes up a large installation space, resulting in tight layout space

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