Abstract
To evaluate the control performance of the PID controller for the cars, a 3D car dynamic model with 8-DOF which can fully reflect the pitch and roll of the car body is proposed in this study. The PID controller is then researched and applied to control the active suspension system of the cars under the different excitations of the road surface and the various car speeds. The control performance for improving the ride comfort of the driver is evaluated via the root-mean-square (RMS) of acceleration responses of the vertical driver’s seat, pitching and rolling car body angles. The research results show that the PID controller for the car suspension system have an obvious impact on reducing the vibration and controlling the car body shaking in comparison with the passive suspension system.
Highlights
Nowadays, due to the demand for transport development, all vehicles need to travel at a higher speed, safer, and more stable, the cars
The innovation in this paper is that a 3D dynamic model of the cars which can fully reflect the car body shaking vibrations is studied
The control performance of the PID controller for the active suspension system on the car driver comfort is evaluated under different operation conditions of the cars
Summary
Due to the demand for transport development, all vehicles need to travel at a higher speed, safer, and more stable, the cars. The study for controlling the damping force or coefficients of the suspension system had been concerned. The vehicle suspension system model with the damping coefficient of the magneto-rheological (MR) fluid was researched and controlled [3,4,5,6,7,8]. The results showed that the damper force of the RM could improve the vehicle ride comfort. The quarter car models with the damping coefficient of the MR fluid were mostly applied and controlled for all the researches. CONTROL PERFORMANCE OF SUSPENSION SYSTEM OF CARS WITH PID CONTROL BASED ON 3D DYNAMIC MODEL. The PID controller is researched and applied to control the active force for the car suspension system. The performance and stability of the PID controller are evaluated under the various excitations of the road surface and the different speeds of the cars
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