Four-wheel-steering Control Strategy and its Integration with Vehicle Dynamics Control and Active Roll Control 2004-01-1061
The paper presents a 4-wheel-steering (4WS) control strategy devoted to reduce the turn diameter for small longitudinal speed values and to obtain a yaw rate damping effect in dynamic manoeuvres. Moreover, the 4WS active system conceived produces compensation both for lateral wind and road irregularities. The main results obtained through a functional vehicle model are presented. 4WS was integrated with a Vehicle Dynamics Control (VDC), which was improved for turn while braking manoeuvres. The results due to integration were very good, with a reduction of both systems interventions. Finally, a VDC-4WS-Active Roll Control (ARC) integration was tried, based on only one reference body yaw rate for all the active systems. The main results obtained are presented and discussed.
Citation: Velardocchia, M., Morgando, A., and Sorniotti, A., "Four-wheel-steering Control Strategy and its Integration with Vehicle Dynamics Control and Active Roll Control," SAE Technical Paper 2004-01-1061, 2004, https://doi.org/10.4271/2004-01-1061. Download Citation
Mauro Velardocchia, Andrea Morgando, Aldo Sorniotti
Politecnico di Torino, Department of Mechanics
SAE 2004 World Congress & Exhibition
Vehicle Dynamics and Simulation 2004-SP-1869, Electronic Braking, Traction, and Stability Controls, Volume 2-PT-129