How Does A Car Power Seat Work?

- Mar 11, 2019 -

The control circuit of the electric seat motor of the car has the front and rear sliding adjustment of the seat, the up and down adjustment of the front part of the seat, the up and down adjustment of the rear part of the seat, the tilt adjustment of the backrest, the up and down adjustment of the headrest and the front and rear of the waist cushion. Adjustment, etc. The front and rear adjustment of the lumbar pad is directly controlled by the lumbar pad switch and the lumbar pad motor, and has no storage function.

The driver can control the remaining five adjustments by manipulating the motor power seat motor switch. When the seat position is adjusted, press the store and reset switch, the electronic control unit will store the signal of each position sensor for reuse when the seat position is restored next time. When used next time, as long as the position storage and reset switch is pressed, the seat ECU drives the seat motor to adjust the seat to its original position.

The automotive electric seat motor consists of three parts: the seat position sensor, the electronic controller ECU and the drive motor of the actuator. The sensor includes a position sensor, a rear view mirror position sensor, a seat belt buckle sensor, a steering wheel tilt sensor, etc.; the ECU includes an input interface, a microcomputer CPU, and an output processing circuit; and the actuator mainly includes performing seat adjustment, rearview mirror adjustment, and safety. Micromotors with buckles and steering wheel tilt adjustments, and these motors can be flexibly forward and reverse to perform various device adjustment functions.

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