Patent ID: 9625035
Date: 2017-04-18
CPC Classifications: B60W,F16H

Claim:
1. A method of controlling a transmission of a vehicle, the method comprising: continuously sensing a position of an accelerator pedal over time, with a position sensor, to detect a first inflection point and a second inflection point in the movement of the accelerator pedal; calculating an amplitude between the first inflection point and the second inflection point; measuring a period of time between an occurrence of the first inflection point and an occurrence of the second inflection point; defining an attenuation coefficient from the calculated amplitude and the measured period of time; defining a current iteration temporary gear ratio for the transmission with an iterative gear ratio selection algorithm, in which the gear ratio calculated during the most recent iteration of the gear ratio selection algorithm is defined as the current iteration temporary gear ratio; adjusting the current iteration temporary gear ratio with the defined attenuation coefficient to define a current iteration final output gear ratio; and controlling the operation of the transmission to change the transmission from a previous iteration final output gear ratio to the current iteration final output gear ratio to limit excessive gear ratio changes in response to a change of mind event, wherein the gear ratio calculated during the immediately previous iteration of the gear ratio selection algorithm is defined as the previous iteration final output gear ratio.