Patent ID: 7413526

Claim:
An automatic shifting-operation control system comprising: an intake air amount detecting means configured to detect an intake air amount of an engine; an engine control means configured to control operation of the engine by a signal indicating detected intake air amount, and to include one or both of a vehicle speed limiting function for reducing a fuel injection amount to suppress a driving speed of a vehicle to a speed equal to or less than a predetermined limited value and a cruise control function for setting the driving speed of the vehicle to an optional constant speed capable of allowing automatic cruise of the vehicle; and a transmission control means configured to control a transmission in accordance with a driving state of the vehicle, wherein the automatic shifting-operation control system further comprises a means for determining whether or not the vehicle speed is being limited by the vehicle speed limiting function, and wherein the automatic shifting-operation control system controls the transmission such that when it is determined that the vehicle speed is being limited, reference made to a detected intake air amount is interrupted while interrupting reference to a shifting map on the basis of the detected intake air amount and an engine rotating number, and reference is instead made to a pseudo intake air amount calculated from a fuel injection amount controlled to suppress the driving speed of the vehicle to a speed equal to or less than a predetermined limited value and the engine rotating number and to a specified shifting map based on the calculated pseudo intake air amount and the engine rotating number.