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고영은(Young.E.Ko),오태일(Tae.I.Oh) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_2
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.<br/>