Motor vehicles – With means for detecting wheel slip during vehicle...
Patent
1992-04-14
1993-11-23
Focarino, Margaret A.
Motor vehicles
With means for detecting wheel slip during vehicle...
36442603, B60K 2816, B60T 858
Patent
active
052635481
ABSTRACT:
A slip control system for a vehicle having a differential which distributes engine output to left and right driving wheels suppresses the engine output when the slip of at least one of the driving wheels exceeds a first threshold value. Slips of the left and right driving wheels are periodically detected, and a spin pattern of the driving wheels is periodically determined on the basis of the slips of the left and right driving wheels. Whether the vehicle is running on a split surface road, where the parts of the road surface in contact with the left and right driving wheels have different friction coefficients, is determined on the basis of the present spin pattern and the preceding spin pattern according to a predetermined split surface determining rule. When it is determined that the vehicle is running on a split surface road, the first threshold value is increased.
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Kageyama Fumio
Kawamura Makoto
Nobumoto Kazutoshi
Okazaki Haruki
Sotoyama Kaoru
English Peter
Focarino Margaret A.
Mazda Motor Corporation
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