Automobile air conditioner control system air door self-calibration method

Abstract

The present invention discloses an air door self-calibration method for an automobile air-conditioning control system. The method comprises the followings steps of: A. driving an air door motor to an anticlockwise limit position; B. reading the value of the anticlockwise limit position of the motor; C. writing the value of the anticlockwise limit position; D. driving the air door motor to a clockwise limit position; E. reading the value of the clockwise limit position of the motor; F. writing the value of the clockwise limit position; G. after each motor obtains two limit positions, obtaining an ideal motor calibration value at any position between the two limit positions according to the linear interpolation algorithm; H. writing the calibration value. With the method, the self- calibration strategy is adopted by the control motor with position feedback so that the production errors and assembling errors generated by the air-conditioning system are effectively overcome and the reliability of the air-conditioning system is improved.

Description

Self-calibration method for damper of automobile air-conditioning control system Technical field: The invention relates to an automobile air-conditioning control system, in particular to a self-calibrating method for a damper of the automobile air-conditioning control system. Background technique: The temperature control of the automobile air-conditioning system, the control of the air supply mode and the wind direction are mainly realized by driving the damper to different positions by the motor, such as the temperature control of the air-conditioning system, the temperature selection is realized by controlling the change of the resistance value of the potentiometer by the temperature knob, and the temperature The control is realized by controlling the motor position of the mixing damper, and different damper positions represent different temperatures. The position calibration of the damper mainly adopts the default value method. When the assembly and manufacturing accura...

AI Technical Summary

Problems solved by technology

The position calibration of the damper mainly adopts the default value method. When the assembly and manufacturing accuracy of the air conditioning system is good, the default value method is simple and reliable, but when the air conditioning system assembly and manufacturing accuracy is poor, the default value method is used. Often there will be problems such as the air door is not closed tightly, or the motor is blocked, resulting in poor cooling / heating effect of the air conditioner, or the aging of the motor is accelerated, and the motor is damaged, etc.

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