Decoupled Multi-mode Controllable Electrically Interconnected Suspension for Improved Vehicle Damping Performance
Publication Name
Lecture Notes in Electrical Engineering
Abstract
This paper proposes a new multi-mode controllable electrically interconnected suspension (EIS) system to further improve the driving smoothness and stability of passive suspension vehicles. The multi-mode controllable EIS utilizes the bi-directional conversion of mechanical and electrical energy of the electromagnetic damper and adds an active energy dissipation control circuit module to the semi-active EIS, which can realize active and semi-active multi-mode switching control of the EIS. Due to the decoupling characteristics of interconnected suspension, the switch in the designed active control circuit can achieve the effect of active segment decoupling control in conjunction with the adjustable resistor in the semi-active electrical network, which will greatly reduce the control difficulty of the EIS system. To deeply study the performance of each part of the multi-mode controllable EIS, the dynamics model, multi-mode controllable circuit model, and state equation of the semi-vehicle EIS are established. The target force required to improve the performance of the suspension is solved by an H∞ state feedback controller, and the control logic is designed for the coordination relationship between the bridge switch and the adjustable resistor module of the multi-mode controllable EIS so that the force generated by the EIS can better track the target force and achieve the purpose of semi-vehicle vibration control. The acceleration, body attitude, and power consumption information of the semi-active EIS only, active EIS only, and multi-mode controllable EIS are compared and analyzed by numerical simulation.
Open Access Status
This publication is not available as open access
Volume
1152
First Page
105
Last Page
119