Traction and braking of hybrid electric vehicles using control allocation

Journal article, 2008

This paper considers how a reusable motion control system can be designed to handle Hybrid Electric Vehicle (HEV) systems. The design considers simultaneously energy management and vehicle stability control, by distributing the task among available actuators. The suggested control system includes a control law for longitudinal, lateral, and yaw motion and a control distributor which distributes the desired control signals on the available actuators. The distribution among available actuators is designed by using constrained control allocation with mixed optimisation formulation, which gives a smooth blending among the available actuators. Simulations confirm that the proposed motion control system not only works as a traction, braking, and steering controller, it also works well as a vehicle stability controller.