Abstract

This paper presents a method for designing an active roll control system (ARCS) and an integrated chassis control (ICC) for hybrid 4-wheel drive vehicles (H4Vs). ARCS adopts an active anti-roll bar as an actuator. ARCS is designed by sliding mode control with an open-loop roll observer. To maintain the maneuverability of a vehicle with ARCS, ICC for H4Vs is designed. H4V consists of a front internal combustion engine and independent motor-driven rear wheels, and is equipped with electronic stability control (ESC), active front steering (AFS) and 4-wheel drive (4WD). Direct yaw moment control (DYC) is used to generate a control yaw moment. Weighted least square (WLS) and simulation-based optimization are proposed to distribute the control yaw moment. Simulations on vehicle simulation software, CarSim®, show that the proposed ARCS with ICC is effective for H4V.

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