Anti-pinch control method for vehicle open-close body

Abstract

The invention provides an anti-pinch control method for a vehicle open-close body. In method, a self-study initializing step of the open-close body is finished first and then the anti-pinch control of the open-close body is realized. The anti-pinch control method comprises the following steps of: judging the area where the open-close body is positioned by acquiring a current position signal of the open-close body; acquiring a rotating speed value n and a voltage value U of a current motor, and obtaining the current load torque value T of the motor according to the formula 3:n=aU-kT-A; comparing an anti-pinch torque threshold Tp and the load torque value; if the T is greater than the Tp, controlling the motor to rotate reversely according to the judgment results of the area where the open-close body is positioned currently and the stroke position of the area; and otherwise, continuing to perform the current operation. In the anti-pinch method, the error of anti-pinch force is only related to the rotating speed droop constant of an actual motor, so that the effect of reducing variable number to reduce the error is achieved; the requirement on motor consistency is low; and the control cost is reduced.

Description

technical field [0001] The invention relates to a control method of a vehicle opening and closing body, in particular to an anti-pinch control method of a vehicle opening and closing body. Background technique [0002] With the development of electronic technology, and with the public's increasing demand for vehicle comfort and convenience, some opening and closing bodies on vehicles have developed from mechanical control methods to electronic control methods, such as doors, windows, sunroofs, etc., but for The door, window or sunroof that can be opened and closed automatically has the risk of pinching people. Therefore, many car doors, windows or sunroofs on the market are designed with an anti-pinch function. At present, this function is mainly through the motor and the Hall sensor. cooperate to achieve it. For example, in the current sunroof system as a kind of opening and closing body, the memory position points after self-learning are: fully tilted position, closed pos...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of the anti-clamping function of the opening and closing body for vehicles in the prior art, the requirements for the consistency of the motor are too high, the anti-pinch force of the opening and closing body for vehicles is unstable, and the precise control of the opening and closing body cannot be implemented, the present invention Provided is an anti-pinch control method for a vehicle opening and closing body, through the control method, the requirement for the consistency of the motor for the vehicle opening and closing body can be reduced, the stability of the anti-pinch force of the vehicle opening and closing body can be improved, and the anti-pinch force of the vehicle opening and closing body can be effectively Precise control of opening and closing bodies

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