Patent ID: 8290669

Claim:
A system for controlling an engine of a vehicle comprising: an engine including an engine output shaft; a transmission including an input shaft, an output shaft, and a plurality of speed ratios; a coupling intermediate the engine output shaft and the input shaft; and a controller configured to adjust a speed of the engine output shaft to be substantially equal to a speed of the input shaft when an operator of the vehicle changes from a first one of the plurality of speed ratios to a second one of the plurality of speed ratios and a speed of the vehicle is within a first speed range, and the controller is configured to adjust the speed of the engine output shaft based on a comparison of the shaft speed of the input shaft with a shaft speed limit when an operator of the vehicle changes from the first one of the plurality of speed ratios to the second one of the plurality of speed ratios and the speed of the vehicle is within a second speed range different from the first speed range; wherein the second one of the plurality of speed ratios is numerically greater than the first one of the speed ratios.