Principles and Applications of DYC in Transient State (Third Report)

-Effects of Friction Torque of the Front and Rear Differential Gears of 4WD Vehicle -

Abstract

The characteristics of a 4WD vehicle in a high-speed straight driving range were analyzed against a 2WD vehicle. A characteristic of 4WD vehicles is that they have differential gears on the front and rear wheels, so the two differential gears increase yaw damping. As a result, the gain during steering is reduced, the phase delay is reduced, and the effect of suppressing disturbances such as crosswinds is increased. These are probably the reasons why 4WD vehicles are said to have a better feeling of going straight at high speeds than 2WD vehicles.