F2010B040
A Study on the Vehicle Dynamics Properties using Active Roll Control Stabilizer Bar System
Generally speaking, the vehicle dynamics performance is mainly governed by some trade-off relations. Especially, ride and handling performance should be handled based on this consideration. In case of the driving straight, the driver wants a smooth ride without left hand side and right hand side connection. Otherwise, when the car is in cornering, the vehicle has to have acceptable body roll with respect to the lateral acceleration. For the case, roll stiffness acts as vehicle parameters and could be a control factor for each case, if necessary. In this paper, we would like to study the vehicle level performance clarification based on the trade-off relation on ride and handling performance at first. That study would be clarified through the simple vehicle roll dynamic model with stabilizer bar. And then we would like to think about how to overcome this situation using another solution with theoretical basic. The one of answers is control system could be ARC (Active Roll Control Stabilizer Bar System). It could be considered as a solution of the improvement on this trade-off to reduce and to compensate for the roll dynamics during cornering by changing the wheel normal forces at each axle. The purpose of an active roll control system is to eliminate the compromise between ride and handling performance that is inevitable with the use of a passive stabilizer bar. Based on the study on passive stabilizer bar, we would like to show a proposal of ARC system control algorithm. The algorithms for Active Roll Control Stabilizer Bar System have been developed along with a reliable simulation environment for design and validation of the algorithms. This research arranges the ARC functionality and performance limits using by vehicle dynamic simulation environment. Finally, we will execute the vehicle test which is built-in proto-ARC system. This experimental data from the vehicle would be brought into series production prove the performance of the ARC system.
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