Variable Roll Stiffness System of An Automobile

Abstract

In different road conditions every one's first priority is comfort as well as safety and there is a lot of importance of ride quality & ease while travelling. The comfort of vehicle is directly linked with the level of safety offered during various road conditions. Road safety is one of the primary concern of each and every automobile driver. The anti-roll bar is an established feature of suspension design and is found on just about every modern day car -and plenty of classic cars too. In order to resist the car during the situation of extreme body roll Anti-Roll bar works as a link which stiffen the suspension to control this sort of action. Our objective is to develop a new active safety system for vehicles which controls the overall vehicle behavior in emergency situations. An adjustable anti-roll bar having a single set of mounting apertures whose roll stiffness can be adjusted at the middle of the Anti-Roll bar, in which variable roll stiffness is achieved by providing gear mechanism consisting of three mitre type bevel gears which is actuated by pneumatic means according to different road conditions. According to our design we are working in the area of vehicle dynamics in which our main focus is to provide variable roll stiffness at different road condition. Components which we will include for prototype building are 3 equal bevel gears, antiroll bar, pneumatic piston-plunger, suspensions. Pneumatic system is used which helps in providing flexibility to gear mechanism and hence improving the function of Anti-Roll bar.