Patent ID: 9090246
Filing Date: 2015-07-28
Classification: B60W,F16H,Y10S,Y10T

Abstract:
1. A method for controlling a spark-ignited engine coupled to an automatic transmission via a torque converter, comprising: during a first position of a driver foot pedal and during a manual gear ratio change to a future, lower gear in response to a change in a driver-selectable transmission lever, controlling engine speed to a synchronous speed in the future gear ratio by adjusting an engine operating parameter so that the engine speed is close to an engine speed that will be achieved after the gear change is completed; maintaining the engine speed at the close engine speed after the gear change is complete; and upon a second position of the driver foot pedal, the engine speed is changed to a different engine speed that is controlled by adjusting at least an electronically controlled throttle plate communicating with an intake manifold, where the electronically controlled throttle plate adjusts airflow to the engine, the automatic transmission including a plurality of manual driver-selectable discrete gear ratios.