Title:
MAGNETORHEOLOGICAL FLUID BRAKE AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/174502
Kind Code:
A1
Abstract:
Disclosed are a magnetorheological fluid brake and a control method therefor. When braking is not required, the brake does not work, and no magnet exciting coils are powered on; and when braking is required and the brake receives a retarding braking signal, a magnet exciting coil module is powered on, the current is gradually increased, an oil port is gradually closed, and an internal back pressure of the brake is gradually increased, thereby gradually increasing the braking force so as to achieve a braking effect. The characteristics of a pump and valve characteristics of a magnetorheological fluid are utilized to adjust the viscosity of the magnetorheological fluid, such that a back pressure is generated in a pump body, a braking torque is generated for a shaft, braking is conducted, the braking torque is large, the response is fast, and the safety of a braking system is significantly improved.
Inventors:
REN FENG (CN)
JIANG ZHENGYING (CN)
JIANG ZHENGYING (CN)
Application Number:
PCT/CN2020/078056
Publication Date:
September 10, 2021
Filing Date:
March 05, 2020
Export Citation:
Assignee:
REN FENG (CN)
International Classes:
F16D57/00; F16D65/78
Foreign References:
| CN110792704A | 2020-02-14 | |||
| US7891474B2 | 2011-02-22 | |||
| US20070181391A1 | 2007-08-09 | |||
| CN104295639A | 2015-01-21 | |||
| CN210034234U | 2020-02-07 | |||
| CN205173301U | 2016-04-20 | |||
| CN103758896A | 2014-04-30 |
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