선회 성능 향상을 위한 eLSD 제어 알고리즘 및 랩타임 시뮬레이션

초록

The eLSD (Electronic Limited Slip Differential) is the device that provides limited slip differential function by electric control of friction clutch. The advantage of eLSD is that it can control LSD function according to vehicle state properly. Traditionally, many studies about eLSD were performed to improve traction and stability of the vehicle, but it also can be used to improve turning performance of the vehicle. In this paper, we propose eLSD control algorithm in order to improve turning performance of the vehicle that is applied eLSD. The proposed algorithms are compared with the eLSD basic control algorithm and open differential in the simulation environment in terms of turning performance and stability of the vehicle. The simulations are conducted using CarSim of Mechanical Simulation and VSM of AVL. We conduct basic test scenario like steady-state circular test and ramp steer test using CarSim, and conduct lap time simulation at circuit using VSM.