Understanding the Interaction Between Passive Four Wheel Drive and Stability Control Systems

Syun K. Lee; Nancy M. Atkinson

doi:10.4271/2002-01-1047

2002-03-04

Understanding the Interaction Between Passive Four Wheel Drive and Stability Control Systems 2002-01-1047

The purpose of this paper is to describe and define the interaction between a brake based stability control system and a passive coupler (viscous coupling unit) inside the transfer case of a Four-Wheel Drive (4WD) vehicle. This paper will focus on the driveline system and the impact that a stability control system can have on it. It will provide understanding of torque transfer on 4WD vehicles that are equipped with a brake based stability control system and use this knowledge to recommend ways to reduce the undesirable torque transfer interaction between the two systems. These recommendations can be readily applied to future 4WD/AWD vehicles to improve compatibility between the two systems.

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Understanding the Interaction Between Passive Four Wheel Drive and Stability Control Systems 2002-01-1047

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