Vehicle electric seat anti-clamping control method based on motor current ripple waves and controller

Abstract

The invention discloses a vehicle seat anti-clamping control method based on motor current ripple waves, and further discloses a controller used for achieving the vehicle seat anti-clamping control method based on the motor current ripple waves. The vehicle seat anti-clamping control method comprises the following steps that a current ripple wave signal of a seat motor is collected; the collectedcurrent ripple wave signal is calculated to obtain current position information and current operating state information of the seat motor; according to the current position information and the currentoperating state information of the seat motor, by combining with the operating state characteristics of the seat motor when a vehicle seat encounters an obstacle, whether the vehicle seat encountersthe obstacle or not is judged; and if it is judged that vehicle seat encounters the obstacle, the seat motor is controlled to stop rotating or reversely rotate. The anti-clamping function of the vehicle electric seat is achieved, the safety performance of the vehicle electric seat is improved, meanwhile, a hall sensor does not need to be additionally arranged, a connecting wire harness is omitted,and thus the manufacturing cost is effectively lowered.

Description

technical field [0001] The invention relates to the technical field of car seat control, in particular to an anti-pinch control method of an electric car seat based on motor current ripple and a controller thereof. Background technique [0002] As people have higher and higher requirements for car safety in recent years, many car seats are electrically adjustable, but the existing car electric seat control has the following defects: when the car electric seat encounters obstacles during motion It will not stop until the rotor is blocked to the point where it cannot move, and there is a greater safety risk. [0003] At present, some manufacturers will add Hall sensors in the seat motor to collect Hall signals to obtain seat position information to realize the anti-pinch function of automobile electric seats, but the Hall signals generated by the Hall sensors are easily affected by the modulation signal. interference. In addition, more wire harnesses (such as Hall power wire...

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide a car seat anti-pinch control method based on the motor current ripple in view of the existing car electric seats that have relatively high safety risks and high manufacturing costs.

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