System and method for boosting torque output of a drive train

Details System and method for boosting torque output of a drive train System and method for boosting torque output of a drive train

2007-10-02

2007-10-02

Schuberg, Darren (Department: 2834)

Prime-mover dynamo plants

Electric control

Engine control

C290S04000F, C290S04000F, C322S011000, C322S013000, C322S025000

Reexamination Certificate

active

11672374

ABSTRACT:
An engine speed detector detects an engine speed of an engine having a baseline torque versus engine speed curve. A torque sensor detects an engine torque of the engine. A data processor determines if the detected engine speed is within a first speed range and if the detected engine torque is within a first torque range. A motor controller activates an electric motor to rotate substantially synchronously with a corresponding engine speed associated with the detected engine torque 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 and if the detected engine torque is within the first torque range. The supplemental torque versus engine speed curve intercepts the baseline torque versus engine speed curve at a lower speed point and a higher speed point.

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