Vehicle door obstacle early warning method and device, equipment, and storage medium

An obstacle and door technology, applied in the information field, can solve the problems of easy misjudgment, low sensitivity, poor real-time performance, etc., and achieve the effect of solving resistance mutation, high real-time performance and sensitivity, and improving accuracy
CN112576134AActive Publication Date: 2021-03-30BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BYD CO LTD
Publication Date
2021-03-30

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Abstract

The invention discloses a vehicle door obstacle early warning method and device, equipment, and a storage medium. The method includes the steps of obtaining a three-phase Hall pulse signal outputted by a Hall element on a stator winding of a vehicle door drive motor and a Hall pulse count value corresponding to the three-phase Hall pulse signal in the opening / closing process of a vehicle door; setting a current threshold value in a current control mode and a time threshold value in a Hall pulse control mode according to the Hall pulse count value; and executing the current control mode and theHall pulse control mode so as to detect a vehicle door obstacle and output a vehicle door anti-pinch early warning signal. According to the vehicle door obstacle early warning method and device, theequipment, and the storage medium, the current threshold value and the time threshold value are set through the Hall pulse count value, so that segmented control over the opening / closing process of the vehicle door is achieved, and the misjudgment problem caused by the sudden change of the resistance of the vehicle door on a curve part is solved; and by combining double mechanisms of current detection and Hall pulse detection, the precision of obstacle detection is effectively improved, and the real-time performance and the sensitivity are relatively high.
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Description

technical field

[0001] The present invention relates to the field of information technology, in particular to an early warning method, device, equipment and storage medium for vehicle door obstacles. Background technique

[0002] In recent years, with the rapid development of the urban rail transit industry, passengers have paid more and more attention to the safety of urban rail transit vehicles.

[0003] As the passage for passengers to get on and off the train, the door is a very important part of the train, which is related to the normal operation of the urban rail vehicle and the safety of passengers. An existing obstacle detection method of an Electronic Door Control Unit (EDCU for short) is to realize the obstacle detection function by detecting the change of the motor current. When the door clamps an object or person and cannot be closed normally, the load torque of the motor suddenly increases, and the corresponding armature current value also increases suddenly. W...

Claims

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