Motor vehicles – With means for detecting wheel slip during vehicle...
Patent
1997-03-31
2000-01-18
Mai, Lanna
Motor vehicles
With means for detecting wheel slip during vehicle...
701 55, 701 56, 701 90, G06G 770
Patent
active
060150203
ABSTRACT:
A gear shift control device of an automatic transmission of a vehicle, including a slip angle estimator for estimating a slip angle of at least one of a pair of drive wheels; a slip ratio estimator that estimates the slip ratio of the one drive wheel; a determiner that determines an upshift of the automatic transmission when the absolute value of the estimated slip ratio is greater than a threshold value; and a upshift executor for executing the upshift automatic transmission according to the upshift determined by the determiner, wherein the determiner determines the upshift to be of a greater number of stage within an available range against the absolute value of the estimated slip ratio according as the absolute value of the estimated slip angle is greater.
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Cuff Michael
Mai Lanna
Toyota Jidosha & Kabushiki Kaisha
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