Abstract
This paper has investigated an integrated control of active front steering (AFS) and direct yaw-moment control (DYC) for vehicle systems. First of all, the desired yaw rate and sideslip angle are estimated by using a two-degree-of-freedom (2-DOF) model of the vehicle system. On this basis, the actual sideslip angle is estimated by means of an observer. Then, the sliding mode control (SMC) is developed for AFS and DYC, respectively, to guarantee that the actual yaw rate and the sideslip angle track their reference signals. Additionally, the disturbance observer (DOB) technique is introduced to further improve the control performance. Finally, the simulation results validate the superiority of the AFS and DYC integrated control by using CarSim software during the following conditions: double lane change and side wind disturbance.
Highlights
With the development of electronic technology, the use of control technology to improve the active safety of automobiles has become a hot topic in the automotive field
Is paper focuses on the investigation of the integrated sliding mode control (SMC) control for the active front steering (AFS) and direct yaw-moment control (DYC) system, which is designed to make sure the actual yaw rate and sideslip angle track the desired signals
Under the other three controllers, the vehicle trajectory can track the expected trajectory, the actual yaw rate can follow the ideal value, and the actual sideslip angle can be controlled in a stable region
Summary
With the development of electronic technology, the use of control technology to improve the active safety of automobiles has become a hot topic in the automotive field. The effect of DYC is very obvious at this time, and it is easy to realize It does not require a great change in the original structure of the vehicle. Us, the integrated control of AFS and DYC can further improve the lateral stability of the vehicle and reduce the influence of braking on longitudinal dynamics and improve the driving comfort. Is paper focuses on the investigation of the integrated SMC control for the AFS and DYC system, which is designed to make sure the actual yaw rate and sideslip angle track the desired signals. An integrated control of AFS and DYC for vehicle systems has been studied. The Lyapunov stability analysis and simulation results have been given to demonstrate the effectiveness of the proposed strategy.
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