Patent ID: 6851766
Filing Date: 2005-02-08
Classification: B60K,B60T,B60W

Abstract:
1. A traction control apparatus for a vehicle provided with slip ratio related amount obtaining means for obtaining respective slip ratio related amounts showing respective degrees of slip for driving wheels and braking force controlling means for exerting braking force for traction control on the driving wheel when a slip ratio related amount exceeds a predetermined allowable slip ratio related amount, the predetermined allowable slip ratio related amount is common to all of the driving wheels and is used to determined whether the traction control should be initiated or not when the vehicle is in a state to be driven, such that the slip ratio related amount of the driving wheel is placed within the predetermined allowable slip ratio related amount, the traction control apparatus comprising: wheel speed obtaining means for obtaining respective wheel speeds of plural driving wheels; dispersion amount obtaining means for obtaining a wheel speed dispersion amount showing a degree of dispersion in the wheel speeds of the plural driving wheels based on a comparison result with respect to the wheel speeds of the plural driving wheels; and allowable slip ratio related amount changing means for changing the predetermined allowable slip ratio related amount according to the wheel speed dispersion amount.