Vehicle Motion Stability Enhancement Based on Active Camber Angle Control for a Double Wishbone Suspension

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H.M. El-Zomor
Eid S. Mmohamed

Abstract

This work studies the combination of the active camber angle actuator with a double wishbone suspension to guarantee vehicle stability enhancement. The effect of camber angle on vehicle stability and manoeuvrability parameters are monitored in order to estimate the optimal values of camber angle for left and right wheels under single-lane change manoeuvring test. The proposed system is simulated based on the full car simulation package ADAMS/Car in connection with MATLAB/Simulink. The simulated result looks promising as the camber angle control can dominate the motion at various yaw rate, side slip and lateral acceleration during a vehicle manoeuvring test. A quarter-car double wishbone suspension prototype has been built with the proposed active camber angle system. The effect of the tire load on the camber angle is evaluated; the actuator effectively works to the optimal value of camber angle in order to enhance vehicle stability.

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