ADAMS를 이용한 상시 4륜 구동 차량의 운동 해석

The full-time 4WD(four-wheel-drive) vehicle which has a device to equalize the angular velocities of front and rear wheels always drives the whole wheels, while the conventional 4WD vehicle can drive four wheels by selection of the 4WD mode. The viscous coupling in full-time 4WD vehicle links the front propeller shaft to the rear one to rotate together, as well as permits them to have different revolution speeds in some ranges of the fluid friction. The ADAMs full vehicle model including the viscous coupling and the speed controller has been built to know the behavior of the full-time 4WD vehicle, and to verify the performance of the dynamic characteristics of it. Some simulation results of the acceleration and the cornering maneuver show that the full-time 4WD vehicle can improve stability and driveability in comparison with the conventional one.