Patent ID: 9401617
Filing Date: 2016-07-26
CPC Classification: B60L,B60W,H02J,Y02T

Claim Text:
1. A method for operating a hybrid drive device including an internal combustion engine-generator unit as a range extender, at least one electric machine for driving and decelerating the hybrid vehicle, and a battery, the method comprising: generating mechanical energy in an internal combustion engine of the internal combustion engine-generator unit; converting, in a generator of the internal combustion engine-generator unit, the mechanical energy into electrical power; and at least one of: i) charging the battery with the electrical power from the generator, and ii) charging the battery with electrical power from the electric machine in a regenerative mode of the electric machine; wherein during operation of the at least one electric machine in at least one of: i) the electrical power provided by the generator of the internal combustion engine-generator unit, and ii) the electrical power provided by the at least one electric machine in the regenerative mode for charging the battery, is controlled or regulated so that an electrical charging capacity of the battery is below a predefined limiting value, and wherein at least one of: i) the electrical power provided by the generator of the internal combustion engine-generator unit is controlled or regulated in inverse proportion to the regenerative torque of the electric machine, and ii) the regenerative torque of the electric machine is controlled or regulated in inverse proportion to the electrical power provided by the generator of the internal combustion engine-generator unit.