CAJ | 학술논문

基于Simulink建立了用于分析电动助力转向系统特性的非线性汽车动力学模型。针对转向系统转向轻便性、高速行驶稳定性和回正性的多重目标，制订了包括助力、补偿、回正和阻尼的控制策略。根据方向盘检测转矩和转角制定死区控制，并在此基础上制定了综合控制策略。进行了Simulink仿真分析。结果表明，所设计的综合控制策略在满足转向轻便性和路感要求的同时，可以解决低速回正慢、高速回正超调的问题，在防止电机频繁启动的基础上，可以改善汽车高速行驶稳定性。
기우Simulink건립료용우분석전동조력전향계통특성적비선성기차동역학모형。침대전향계통전향경편성、고속행사은정성화회정성적다중목표，제정료포괄조력、보상、회정화조니적공제책략。근거방향반검측전구화전각제정사구공제，병재차기출상제정료종합공제책략。진행료Simulink방진분석。결과표명，소설계적종합공제책략재만족전향경편성화로감요구적동시，가이해결저속회정만、고속회정초조적문제，재방지전궤빈번계동적기출상，가이개선기차고속행사은정성。
A non-linear model used for analysis of EPS was established in Simulink. In order to improve the steering efforts, high speed stability and return ability of the steering wheel, the combination control strategies including assistance control strategy, return control strategy, damping control strate- gy and compensation control strategy were built based on dead zone control. The simulation results validate that the combination control strategies could achieve the request of steering efforts and steering feeling, and it also greatly enhances the return ability. Furthermore, the handling and stability were improved at high speeds with the motor not being started frequently.