Patent ID: 6733418
Filing Date: 2004-05-11
Classification: B60W,F02D,Y10S,Y10T

Abstract:
A control system for a vehicle including an electric throttle control device for electrically controlling a throttle valve that controls an amount of intake air to be supplied to an internal combustion engine, and an automatic transmission,the control system comprising: uncontrollability-determining means for determining whether or not the electric throttle control device is in a condition incapable of controlling the throttle valve; energization-interrupting means for interrupting energization of the electric throttle control device when it is determined by said uncontrollability-determining means that the electric throttle control device is in the condition incapable of controlling the throttle valve; opening-holding means for holding the throttle valve at a default opening position when the electric throttle control device is determined to be in the condition incapable of controlling the throttle valve; throttle opening-detecting means for detecting a degree of opening of the throttle valve; and automatic transmission control means for controlling a speed position of the automatic transmission to a highest speed position if the detected degree of opening of the throttle valve is equal to or smaller than a predetermined reference value when the electric throttle control device is determined to be in the condition incapable of controlling the throttle valve.