June 27, 2022
Automobile Electric Power Steering
Automobile Electric Power Steering

The development of steering systems began with manual steering, hydraulic power steering and electric power steering. Current market trends show that electric power steering is preferred over the other two steering systems: manual steering and hydraulic power steering. Electric power steering was chosen because it is light in operation and the control system is simple.

The motor’s booster position affects the overall dynamic behaviour of the electric power steering system. In the next study, we developed a damping element, including wheel and road forces. The components involved in this movement are also increasing: rack and pinion, tie rods, and drag links. Because this factor more accurately calculates the torque required for the motor booster and control system. In the case of a large car, the similarity of motion will also be different because the difference with a city car is 2380mm in distance from the steering rod, which is 2 to 4 times that of a city car.  This mechanism was later distinguished from the dynamic equations of motion in electric power steering systems with city cars and their types.

There are several issues such as electric power steering system, uncertain model and external interference. However, it is difficult to solve these problems and the performance of the system with a general controller. Therefore, in this paper, we propose a control method based on generalized internal model control based on feedback and Youla parameterization, including performance controller and compensation controller. The performance controller is used to make the electric power steering system work well, and the compensation controller is used to address model uncertainty and external interference. First, in this paper, the model of the electric steering system is established, the two-degree-of-freedom vehicle and tire model are introduced, the state space of the electric steering system including model uncertainty and interference is established, and a generalized internal model control system is designed. do.