汽車自適應照明系統(tǒng)步進電機優(yōu)化控制研究
2021-10-13 22:41:51余紅燕
時代汽車 2021年20期
余紅燕
摘 要：針對汽車照明系統(tǒng)車燈在行駛過程中轉(zhuǎn)彎、上下坡等情況下，出現(xiàn)照明盲區(qū)和遠近光燈不能有效切換等問題，同時對比傳統(tǒng)的PID控制對照明步進電機，存在采集時間較短，若步進電機參數(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，來優(yōu)化步進電機的控制。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)的步進電機，響應速度快，控制精度高，魯棒性較強。
關鍵詞：汽車照明系統(tǒng) 步進電機 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
