Patent ID: 7998025
Filing Date: 2011-08-16
Classification: B60K,B60L,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
1. A method of operating a drivetrain of a motor vehicle having, in a force flow direction in the following sequential order: an internal combustion engine, a clutch, an electric motor, a transmission having a split group and a range group and a transmission input shaft having a mass suspend therefrom, and an axle gearset, the method comprising the steps of: disengaging the clutch, engaging the split group and the transmission, shifting the range group into a neutral position, accelerating the mass associated with the transmission input shaft via the electric motor, preparing the internal combustion engine for starting, and starting the internal combustion engine by engaging the clutch such that inertia of the accelerated mass of the transmission input shaft facilitates starting the combustion engine.