Title:
ELECTRO-HYDRAULIC COUPLING DRIVE-BY-WIRE POWER-ASSISTED BRAKING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/004526
Kind Code:
A1
Abstract:
An electro-hydraulic coupling drive-by-wire power-assisted braking system, comprising a drive-by-wire power-assisted system and an electro-hydraulic coupling braking system which are designed in a manner of integrating with IBS, wherein the drive-by-wire power-assisted system comprises a pedal execution unit (1) and a pressure building unit (2), and the electro-hydraulic coupling braking system comprises an ABS anti-lock braking system (3), a hub motor driving system, and a hydraulic brake; the pedal execution unit (1) comprises a master cylinder (9) and an input push rod (12); a brake pedal (4) and a piston push rod for executing braking in the master cylinder (9) are not directly connected in a normal state, so that full decoupling is achieved, and the brake pedal (4) detects data by means of a pressure sensor and transmits the data to a brake control system ECU (14) to act on the braking. According to the present invention, the pressure build-up time is shortened, the noise can be effectively reduced, the full decoupling of the brake pedal and the push rod of the master cylinder is implemented, the regenerative energy recovery efficiency of the motor is effectively improved, the energy consumption of the whole vehicle is reduced, the braking requirement of the whole vehicle is implemented by maximally utilizing the electromagnetic braking of the motor, the endurance mileage is improved, and the safety and the stability of vehicle driving are improved. The present invention further relates to an electro-hydraulic coupling braking method.
Inventors:
SHI ZHENGTANG (CN)
SUN YIPENG (CN)
ZHANG HE (CN)
YANG YANG (CN)
ZHANG SHAODAN (CN)
CHEN HANTAO (CN)
CHEN ZHENYING (CN)
SUN YIPENG (CN)
ZHANG HE (CN)
YANG YANG (CN)
ZHANG SHAODAN (CN)
CHEN HANTAO (CN)
CHEN ZHENYING (CN)
Application Number:
PCT/CN2020/101317
Publication Date:
January 14, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
ZHEJIANG ASIA PACIFIC MECHANICAL@ELECTRONIC CO LTD (CN)
International Classes:
B60T13/74
Foreign References:
| CN110406518A | 2019-11-05 | |||
| CN105793129A | 2016-07-20 | |||
| CN105793129A | 2016-07-20 | |||
| CN105383462A | 2016-03-09 | |||
| CN104648164A | 2015-05-27 | |||
| CN104709259A | 2015-06-17 | |||
| CN107499296A | 2017-12-22 | |||
| CN106218619A | 2016-12-14 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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