Enhancement of Vehicle Wheel Vibration Level by using active Camber angle based on a Double Wishbone System

Abstract

Active camber angle position systems for vehicle wheel alignments can better regulate the wheel camber angle position in different operating conditions of vehicles. The aim of this work is to illustrate the application of active camber angle position theory. A prototype of one wheel equipped by the double wishbone suspension system and the variable camber angle control with suspension system concept is proposed. Active camber system uses a linear actuator with Arduino microcontroller. A comparative study was done on wheel vibration characteristics of the conventional camber system (passive system) and active system. The experimental results and analysis show that the vibration signature is influenced by the camber angle position. It is found that the vibration signal increases when the vehicle wheel speed and normal load are increased. Moreover, the results indicate that the root mean square (RMS) of vehicle wheel vibration is improved by 17.78%, 38.6% and 49.63% at wheel speed of 250 rpm, 500 rpm and 750 rpm respectively by using the proposed active camber angle. The vehicle wheel vibration behaviour with active camber angles is likely to be optimum under the different wheel operating conditions.