Control system and method of car window
A technology for control systems and car windows, applied in door/window accessories, operating mechanisms of wing sashes, buildings, etc., can solve the problems of complex wiring harnesses, difficult installation, maintenance and layout, and improve safety performance and operability. , Stable and reliable effect of anti-pinch performance
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[0021] Examples such as figure 1 A control system for a car window is shown, comprising a window motor drive circuit, a button sampling circuit, a ripple sampling circuit, a power supply circuit and a window ripple anti-pinch controller 1, and the window ripple anti-pinch controller 1 includes Processor 2, an operational amplifier circuit 3 for collecting the motor current value up and down, and a detection circuit 4 for detecting the amount of motor current ripple; the ripple sampling circuit includes a sampling resistor arranged at the electrical terminal of the window motor, and The anti-pinch controller 1 is connected to the output end of the button sampling circuit, the ripple sampling circuit and the power supply circuit of the button sampling circuit;
[0022] The MCU controller includes corresponding modules. When the window is moving, the number of pulses is collected and the position of the window is calculated through the number of pulses. When the window encounters...
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