Anti-jerk Control Approach to?Improve Ride Comfort of?a?Half-Car Model Using Aerodynamic Actuators

Abstract

In addition to the heaving acceleration the vehicle body jerk is also considered as passenger discomfort parameter. In this work a more realistic half-car model equipped with aerodynamic surfaces is investigated for the applications of anti-jerk optimal control strategy. Our purpose is to eliminate the body jerk, therefore the derivative of control input is included in the performance index. To evaluate the effectiveness of the proposed anti-jerk control law (AJCL) with respect to the moment of aerodynamic surfaces (AS), a bump velocity input subjected to the right side of the vehicle is considered as road disturbance. The optimal preview control strategy is proposed which has the ability to generate anticipative actions against the future road disturbances. The simulation results are carried out for two different weighting sets, which show that a maximum jerk reduction can be obtained with a minor decrease in rms tyre and suspension deflection, thus improve the ride comfort as well as vehicle handling capability. ? 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.