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汽车转向系统是影响汽车操纵稳定性、主动安全性和舒适性的关键部件。电动助力转向(EPS)是一种全新的汽车动力转向技术,通过建立EPS系统的动力学模型,得出系统的空间状态方程,再利用Matlab软件对系统在单位阶跃、脉冲和正弦输入作用下的转向角度跟随特性进行仿真分析。结果表明系统的角度跟随特性较好,为EPS的研究和设计提供了一个很好的依据。
The car steering system is a key component that affects the stability of the car’s handling, active safety and comfort. Electric power steering (EPS) is a new technology of vehicle power steering. By establishing the dynamic model of EPS system, the space state equation of the system is obtained, and the system software is used to measure the state equation of the system under unit step, pulse and sinusoidal input Steering angle to follow the characteristics of simulation analysis. The results show that the system has good follow-up characteristics and provides a good basis for the research and design of EPS.