Patent ID: 6199005
Filing Date: 2001-03-06
Classification: B60K,B60W,F16H,Y10T

Abstract:
A vehicle drive force controller for suppressing a slip of a drive wheel of a vehicle driven by a multi-cylinder engine, via a continuously variable transmission, comprising:a first sensor for detecting a slip of said drive wheel;a drive force reducing mechanism for reducing a drive force of said drive wheel;a second sensor for detecting a running state of said engine; anda microprocessor programmed to:calculate a target speed change ratio according to said running state;output, to said transmission, a speed change ratio command signal to control a speed change ratio of said transmission to the target speed change ratio;control said drive force reducing mechanism so as to further reduce the drive force of the drive wheel when the slip of said drive wheel was detected, when said engine load is larger than a predetermined load than when said engine load is equal to or less than said predetermined load;set said command signal such that a response of said transmission is delayed with respect to a variation of said running state, the set step being performed when the slip of said drive wheel is detected; andmodify said command signal such that the response of said transmission when said engine load is equal to or less than said predetermined load, is higher than when said engine load is larger than said predetermined load, the modify step being performed when the slip of said drive wheel is detected.