Motion control apparatus for four-wheel drive vehicle

Details Motion control apparatus for four-wheel drive vehicle Motion control apparatus for four-wheel drive vehicle

2008-01-08

2008-01-08

Williams, Thomas (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

With yaw control

C303S169000, C303S190000, C701S072000

Reexamination Certificate

active

11234272

ABSTRACT:
A motion control apparatus for a four-wheel drive vehicle performs over-steer suppressing control when the vehicle is in an over-steer state so as to apply a braking force to a front wheel located on the outer side of a turning locus without lowering engine output, and performs LSD control for the front/rear wheels when the obtained difference between wheel speeds of the left and right wheels exceeds an allowable limit so as to apply a braking force for suppressing idle rotation to the one of the left and right wheels that is of higher wheel speed. During execution of the over-steer suppression control, the braking force for suppressing front-wheel idle rotation to be imparted to the front wheel located on the inner side of the turning locus by means of the front-wheel-side LSD control is lowered, whereby the rear wheels become unlikely to produce excessive idle rotation.

REFERENCES:
patent: 5722743 (1998-03-01), Sano
patent: 5850616 (1998-12-01), Matsuno et al.
patent: 6132014 (2000-10-01), Kiso et al.
patent: 6183052 (2001-02-01), Harada et al.
patent: 6974195 (2005-12-01), Batistic et al.
patent: 2004-066941 (2004-03-01), None

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