Patent ID: 7292932
Filing Date: 2007-11-06
Classification: B60K,B60W,F02D,F02N,Y02T

Abstract:
1. A method for controlling speed of an engine in a vehicle including at least one mechanical system, a battery, and a passenger compartment, the method comprising: determining a desired engine power output; using at least the desired engine power output to determine a desired engine speed; determining whether the desired engine speed is within one of a plurality of predetermined engine speed ranges; determining a noise-vibration level for the vehicle as a function of at least one of a corresponding vibration level for at least one vehicle mechanical system and a sound level for the passenger compartment for the engine operating at the desired engine speed; determining whether the noise-vibration level is within a target range when it is determined that the desired engine speed is within one of the predetermined engine speed ranges; and controlling the engine at the desired engine speed when the determined noise-vibration level is within the target range and it is determined that the desired engine speed is within one of the predetermined engine speed ranges.