Title:
BRAKE BOOSTING SYSTEM, BRAKING METHOD AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/000601
Kind Code:
A1
Abstract:
A brake boosting system, a braking method and an electric vehicle, the brake boosting system comprising: a brake pedal (10), a boosting motor (30), an analog motor (20), a planetary row coupling node (100) and a brake master cylinder (40). The brake master cylinder (40) is used to provide the braking force of a vehicle. The brake pedal (10), the boosting motor (30) and the analog motor (20) are respectively connected to the planetary row coupling node (100). The planetary row coupling node (100) is used to convert the torque of the brake pedal (10) and the torque outputted by the boosting motor (30) and the analog motor (20) into a force acting on a piston rod in the brake master cylinder (40). By means of the provided planetary row coupling node (100), the output torque of the analog motor (20) and the booster motor (30) are concurrently used as a force that drives the piston rod of the brake master cylinder (40), which may thereby improve the output power requirements of a single motor. In addition, if two motors are used to concurrently drive the brake master cylinder (40), when one motor fails, the other motor may be used for braking, which improves the reliability of the entire brake boosting system.
Inventors:
LIU FENGYU (CN)
YING ZHUOFAN (CN)
LIU XIAOKANG (CN)
YING ZHUOFAN (CN)
LIU XIAOKANG (CN)
Application Number:
PCT/CN2020/079771
Publication Date:
January 07, 2021
Filing Date:
March 17, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
B60T13/74
Foreign References:
| CN105857283A | 2016-08-17 | |||
| US5706918A | 1998-01-13 | |||
| CN107226076A | 2017-10-03 | |||
| CN102050107A | 2011-05-11 | |||
| JP2005112025A | 2005-04-28 | |||
| CN204567642U | 2015-08-19 | |||
| CN107757591A | 2018-03-06 |
Other References:
See also references of EP 3851348A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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