Title:
BRAKING SYSTEM FOR VEHICLE BRAKING, AND AUTONOMOUS VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/006843
Kind Code:
A1
Abstract:
Disclosed is a braking system for vehicle braking, the system relating to the technical field of automatic driving. The system comprises: at least one brake wheel cylinder (26, 27, 28, 29); a main brake module (40) used for providing brake pressure so as to brake a vehicle; and an auxiliary brake module (39), comprising an electric linear pump (31), a first pipeline and a second pipeline, wherein the electric linear pump (31) comprises a piston (312) and a pump cavity (311); the pump cavity (311) is connected to a liquid storage tank (10) by means of the second pipeline; when the piston (312) moves away from a first interface, the pump cavity (311) receives brake fluid from the liquid storage tank (10) by means of the second pipeline, and the first interface is an interface between the pump cavity (311) and the first pipeline; the pump cavity (311) is connected to the at least one brake wheel cylinder (26, 27, 28, 29) by means of the first pipeline; and the piston (312) can move towards the first interface and make the brake fluid in the pump cavity (311) enter the first pipeline, so as to provide the brake pressure. The system can provide long-term and high-precision redundant braking.
Inventors:
ZHANG YONGSHENG (CN)
YANG WEIMIAO (CN)
LIU DONGHAO (CN)
YANG WEIMIAO (CN)
LIU DONGHAO (CN)
Application Number:
PCT/CN2020/101307
Publication Date:
January 13, 2022
Filing Date:
July 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
B60T13/66
Foreign References:
| CN106184173A | 2016-12-07 | |||
| CN104192112A | 2014-12-10 | |||
| CN104136291B | 2016-10-19 | |||
| CN106740784A | 2017-05-31 | |||
| US20020084691A1 | 2002-07-04 |
Other References:
See also references of EP 4169782A4
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
Download PDF: