Patent ID: 7446426
Filing Date: 2008-11-04
Classification: B60K,B60W,F02D,F02N,Y02T

Abstract:
1. A system for boosting a torque output of a drive train, the system comprising: an engine speed detector for detecting an engine speed of an engine having a baseline torque versus engine speed curve; a torque sensor for detecting an engine torque of the engine; a data processor for determining if the detected engine speed is within a first speed range and if the detected engine torque is within a first torque range; and a motor controller for activating an electric motor to rotate substantially synchronously with a corresponding engine speed associated with the detected engine torque within the first range in an electric propulsion mode in accordance with a supplemental torque versus engine speed curve if the detected engine speed is within the first speed range if the detected engine torque is within the first torque range, the supplemental torque versus engine speed curve intercepting the baseline torque versus engine speed curve at a lower speed point and a higher speed point.