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Title:
ANTI-PINCH DETECTION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/004188
Kind Code:
A1
Abstract:
The present invention provides an anti-pinch detection method and system. The method comprises: determining a first current change rate according to a current collected in the present current collection period and a current collected in a previous current collection period; determining a second current change rate according to the current collected in the present current collection period and a current collected in a target current collection period, there being N collection periods between the target current collection period and the present current collection period; detecting whether a closure component encounters an obstacle according to the second current change rate, and if yes, determining the stiffness of the obstacle according to the first current change rate; determining a real-time obstacle compression distance according to a contact position zero point and a motor position collected in real time; and determining a real-time anti-pinch force according to the stiffness of the obstacle and the real-time obstacle compression distance, and controlling a motor to reverse when the real-time anti-pinch force is greater than a preset anti-pinch detection threshold. The anti-pinch detection method provided in the present invention can satisfy S5 regulations, and the detection effect is good.

Inventors:
LIU SHUANG (CN)
ZHU WEIHAO (CN)
LIU YANZHAO (CN)
JIA SHENG (CN)
Application Number:
CN2020/093160
Publication Date:
January 14, 2021
Filing Date:
May 29, 2020
Export Citation:
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Assignee:
BEIJING JINGWEI HIRAIN TECH CO INC (CN)
International Classes:
E05F15/42; B60J5/00; E05F15/40
Foreign References:
CN106899254A2017-06-27
CN102979397A2013-03-20
CN106712605A2017-05-24
US20050067987A12005-03-31
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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