Patent ID: 9561763
Date: 2017-02-07
CPC Classifications: B60R,H02J,H02P

Claim:
1. An electrical system comprising: a power plant operable to provide motive power; a first motor/generator and a second motor/generator operatively coupled to a common gear shaft, and to the power plant via a gearbox and drive shaft; and a system controller configured to selectively operate at least one of the first motor/generator and the second motor/generator in one of a motor operating mode and a generator operating mode based on at least one parameter, and to alter the operating mode when the at least one parameter exceeds a predetermined threshold; wherein at least one of the first motor/generator and the second motor/generator provides power to the power plant in the motor operating mode, and extracts power from the power plant in the generator operating mode; wherein the at least one parameter includes a temperature of at least one of the first motor/generator and the second motor/generator.