Analysis of anti-pinch failure of window glass lifting system of a car

As a function to protect occupant safety, anti-pinch is getting more and more attention from consumers and has become a highlight in automobile sales. However, the problem of anti-pinch failure often occurs in practical use, which brings serious after-sales complaints and economic claims, and may cause a large number of vehicle recalls. In order to solve the antipinch failure problem, this paper carries out an in-depth study on the principle of window anti-pinch, the control strategy, the logical algorithm and the control strategy for each calibration condition. Compare the difference between the motor operation curves of the faulty vehicle and the calibrated vehicle, and find out the reasons for the failure of the anti-pinch of the faulty vehicle. According to the failure reason, the controller software algorithm is deeply optimized. Taking a certain model as an example, the complaint rate of after-sales 12mis significantly reduced, proving that the optimization measures are effective, and the theories and measures in this paper can be widely used in the development and anti-pinch calibration of new models in the future.