Simultaneous Optimum Design for the Structural and Control Systems of the Pneumatic Servo-Type Active Suspension
Published August 22, 2005 by Society of Automotive Engineers of Korea in South Korea
In this paper, we propose the simultaneous optimum design method of structured and control systems for an active suspension using a sensitivity analysis. We deal with an analytical half-car model based on the experimental equipment, which has a pneumatic servo-type active suspension. Control design variables for the optimum design are feedback gains of optimal control and structured design variables are spring constants, viscous damping coefficients, cylinder sectional areas, piston strokes and a wheelbase. We used the steepest descent method as search algorithm. We investigated the performance of the proposed control method from numerical simulations. From some simulation results, we confirmed that the proposed method was useful for the control of the bounding vibration and pitching vibration, compared with the control performance in the case of using the conventional optimal control method that doesn't optimize the structural systems.