余紅燕

摘 要：針對(duì)汽車照明系統(tǒng)車燈在行駛過(guò)程中轉(zhuǎn)彎、上下坡等情況下，出現(xiàn)照明盲區(qū)和遠(yuǎn)近光燈不能有效切換等問(wèn)題，同時(shí)對(duì)比傳統(tǒng)的PID控制對(duì)照明步進(jìn)電機(jī)，存在采集時(shí)間較短，若步進(jìn)電機(jī)參數(shù)數(shù)值變化較大，那么控制結(jié)果就可能出現(xiàn)偏差，使得控制精度降低，為此提出一種基于增量式PID 控制算法，來(lái)優(yōu)化步進(jìn)電機(jī)的控制。仿真結(jié)果證明，基于增量式 PID 控制算法的汽車照明系統(tǒng)的步進(jìn)電機(jī)，響應(yīng)速度快，控制精度高，魯棒性較強(qiáng)。

關(guān)鍵詞：汽車照明系統(tǒng) 步進(jìn)電機(jī) 增量式 PID控制

Research on Optimal Control of Stepping Motor in Automotive Adaptive Lighting System

Yu Hongyan

Abstract：Aiming at the problems of the lighting blind zone and the inability to switch between the far and near beams when the car lights of the automotive lighting system are turning or going up and down during driving， and at the same time， compared with the traditional PID control on the lighting stepper motor， there is a shorter acquisition time if the parameter value of the stepper motor changes greatly， and the control result may be deviated， which reduces the control accuracy. For this reason， an incremental PID control algorithm is proposed to optimize the control of the stepper motor. The simulation results prove that the stepper motor of the automotive lighting system based on the incremental PID control algorithm has fast response speed， high control accuracy and strong robustness.

Key words：automotive lighting system， stepper motor， incremental， PID control