Vehicle window motor control method and device

Abstract

The invention discloses a vehicle window motor control method and device. The method comprises the steps of obtaining the working current value and the first preset locked-rotor current value of a vehicle window motor; then recording an abnormal working current value and updating the number of motor abnormities when it is judged that the vehicle window motor abnormally operates according to the working current value and the first preset locked-rotor current value; then resetting a locked-rotor current value according to the abnormal working current value to obtain a second preset locked-rotor current value when the updated number of abnormal times of the motor is equal to a preset value; and finally, controlling the vehicle window motor according to the second preset locked-rotor current value. According to the embodiment of the vehicle window motor control method, the locked-rotor current value can be flexibly set, and the motor is effectively prevented from being seriously damaged due to long-time locked rotor.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to a method and device for controlling a window motor. Background technique [0002] In the prior art, the motor stall protection is generally realized by setting the motor stall current value, specifically: when the motor is working, the current value is greater than the preset stall current value and lasts for a certain period of time, stop driving the motor, To achieve the purpose of motor stall protection. However, the locked-rotor current of the traditional window motor is easily affected by external factors, such as the operating temperature of the window motor and the state of the window rubber strip. Moreover, due to the diversity of the window motors, when the external conditions are the same, the locked-rotor current value of each window motor also has a certain difference. [0003] Therefore, since the set stall current value is a fixed value, if the set stall...

AI Technical Summary

Problems solved by technology

However, the locked-rotor current of the traditional window motor is easily affected by external factors, such as the operating temperature of the window motor, the state of the window rubber strip, etc.

Moreover, due to the diversity of the window motors, when the external conditions are the same, the locked-rotor current value of each window motor also has a certain difference.

[0003] Therefore, since the set stall current value is a fixed value, if the set stall current value is too large or when the motor is idling due to a window failure, the actual motor current cannot reach the stall condition, so the stall protection cannot be achieved If the value of the locked rotor current is too small, it will easily cause the problem that the window cannot be raised to the top or lowered to the bottom normally.

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