Patent ID: 7775934
Filing Date: 2010-08-17
Classification: F02D,F02P,Y02T,Y10T

Abstract:
1. A control system for an internal combustion engine, comprising: an intake manifold for directing airflow to a plurality of cylinders of the engine; an electronically controlled throttle valve disposed within said intake manifold for regulating airflow into the engine; an engine retard control determination module determining whether retard control of the engine is disabled; and a throttle control module communicating with said electronically controlled throttle valve, said throttle control module commanding movement of said throttle valve from an initial position to a more closed position upon detection of a transmission upshift, the throttle control module initially setting a throttle return trigger point to be a point in time when a first gear ratio threshold value is reached but modifying the initial throttle return trigger point during said transmission upshift when said retard control determination module determines that retard control of the engine is disabled, and said throttle control module further commanding movement of said throttle valve back to said initial position at said throttle return trigger point.