Patent ID: 8706335
Filing Date: 2014-04-22
Classification: B60W,B60Y,Y02T,Y10S

Abstract:
1. A method of operating a hybrid drive unit ( 1 ) comprising a first drive-power source ( 2 ), in the form of a supercharged internal combustion engine, and a second drive-power source ( 3 ), comprising an electric machine which is operable as a generator for charging an energy accumulator ( 4 ) that co-operates therewith and as a motor for discharging the energy accumulator ( 4 ), such that as a function of an output torque desired by a driver, a first drive torque can be called for from the first drive-power source ( 2 ) and a second drive torque called for from the second drive-power source ( 3 ) operating as a motor, the method comprising the steps of: when the driver indicates a desire for an increased output torque, one of: supplementing the first drive torque with the second drive torque to achieve the increased output torque and compensate for the increased time span during which the first drive torque reaches the increased output torque desired by the driver or the decreased slope of an initial torque increasing by which the first drive torque reaches the increased output torque desired by the driver when the charge condition of the energy accumulator (