Analysis of Part-Time Four-Wheel Drive Vehicle 820743

This paper reviews the operation of the part-time four-wheel drive vehicle on a high friction paved road. A summary of our investigations follows: 1) The difference in tire radius between the front and rear wheels has a significant influence on traction. 2) When braking, the torque which occurs in the drive line is much larger with four-wheel drive. 3) The driving resistance of four-wheel drive is different from that of two-wheel drive; it is smaller when driving force is in operation.


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