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Hydraulic adjustment unit, brake system and control method

A braking system and adjusting unit technology, applied in the direction of brakes, braking transmissions, vehicle components, etc., can solve the problems of the hydraulic adjustment unit being incapable, lost, unable to control the on-off of the brake pipeline, etc.

Active Publication Date: 2022-02-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, both the first brake pipeline and the second brake pipeline are based on the one-way valve to control the flow direction of the brake fluid, and the on-off of the brake pipeline cannot be controlled.
In this way, when one of the brake pipelines leaks, the brake fluid in the brake system will be lost along with the leaked brake pipeline, causing the hydraulic adjustment unit to fail to pressurize the brake system, reducing the driving safety of the vehicle. safety

Method used

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  • Hydraulic adjustment unit, brake system and control method
  • Hydraulic adjustment unit, brake system and control method
  • Hydraulic adjustment unit, brake system and control method

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Embodiment Construction

[0085] The technical solution in this application will be described below with reference to the accompanying drawings.

[0086] It should be noted that the "liquid outlet pipeline" and "liquid inlet pipeline" mentioned below may correspond to different brake pipelines, or may correspond to the same brake pipeline. The distinction between "outlet line" and "inlet line" is based solely on the function of the brake line in the braking system. For example, when the "liquid outlet pipeline" and "liquid inlet pipeline" correspond to the same brake pipeline 1, it can be understood that, in the process of decompressing the wheels of the car, the brake pipeline in the brake system 1 is used to deliver the brake fluid in the brake wheel cylinder to the fluid storage device. At this time, the brake pipeline 1 can be called the "liquid outlet pipeline". In the process of pressurizing the wheels of the car, the brake line 1 is used to provide brake fluid for the wheels of the car to provide...

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Abstract

Hydraulic adjustment unit, brake system, automobile and control method, the second hydraulic chamber (17) of the hydraulic adjustment unit is used for the first group of brakes through the first brake pipeline (110) provided with the first control valve (111) The wheel cylinders (28, 29) provide braking force, and provide braking force for the second group of brake wheel cylinders (26, 27) through the second brake pipeline (120) provided with the second control valve (121), to avoid In the prior art, the first group of brake wheel cylinders (28, 29) and the second group of brake cylinders (28, 29) are braked by the first brake line (110) and the second brake line (120) with check valves. When the wheel cylinders (26, 27) provide braking force, the on-off state of the first brake pipeline (110) and the second brake pipeline (120) cannot be controlled.

Description

technical field [0001] The present application relates to the field of automobiles, and more particularly, to a hydraulic adjustment unit, a braking system and a control method. Background technique [0002] The braking system of a car is a system that applies a certain braking force to the wheels of the car to perform a certain degree of mandatory braking. The function of the braking system is to make the driving car decelerate or even stop forcibly according to the requirements of the driver or the controller, or to make the stopped car stably park under various road conditions (for example, on a slope), or to make the The speed of the car traveling downhill remains steady. [0003] As a popular braking system, an electro-hydraulic brake system (Electro-Hydraulic Brake, EHB) usually includes a dual-circuit braking system and a distributed braking system. Among them, for the dual-circuit braking system, the hydraulic adjustment device is used to provide braking force for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/135
CPCB60T13/12B60T13/745B60T13/662B60T13/146B60T7/042B60T8/4081B60T7/12B60T8/94B60T13/142B60T13/168B60T13/686B60T17/04B60T17/08B60T2270/402B60T2270/403
Inventor 杨维妙张永生靳彪张伟
Owner HUAWEI TECH CO LTD