Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Zf Friedrichshafen Ag

Henrik Schrage

Wolfgang Grosspietsch

Michael Roske

Timo Wehlen

Dieter Kraxner

Leo Spiegel

Steffen Matschas

Sebastian Wachter

Andreas Ratte

Alexander Bartha

Immo Stache

Martin Fuchtner

Joachim Grünberger

A drive train () for driving a motor vehicle has a combustion engine () for providing purely mechanical drive for the motor vehicle. A transmission () can be coupled to the combustion engine () via a shaft unit () for transmitting torque between the motor vehicle transmission () and the combustion engine (). A reserve volume () is between the combustion engine () and the motor vehicle transmission () and is penetrated by the shaft unit (). The reserve volume () can accommodate a high-voltage electric machine for purely electric drive of the motor vehicle or a low-voltage electric machine () for applying an electrically generated assistance torque to the motor vehicle transmission (). As a result, a hybrid functionality can be made available to an at least limited degree, with the result that a cost-effective drive train () configured for a hybrid motor vehicle is made possible.

Drive train and method for operating a drive train

A drive module for a vehicle has a transmission () and an electric machine () that is coupled to an input shaft () of the transmission (). An air-filled cavity () is formed between the electric machine () and the transmission (). The electric machine () is an external-rotor motor with a rotor () that surrounds the stator (). A fan impeller () rotates with the rotor () and draws air out of the air-filled cavity () in an axial direction, draws the air through windings () of the stator () for cooling, and subsequently conveys the air in the radial direction into a housing-side flow duct () in which heated air can be accumulated and via which the air can be returned toward the cavity (). The heated air can be cooled in the region of the flow duct () and/or in the region of the cavity ().

Drive module for a vehicle

A hybrid drive arrangement for a vehicle with an internal combustion engine for driving, under engine power, and at least one electric machine (), for electric driving, and with a double-clutch transmission. The electric machine () can be separated from the internal combustion engine by at least one separator clutch (), in the form of a wet-operating, hydraulically actuated disk clutch. The outer disk carrier () of the separator clutch () and the outer disk carriers (A) of the two double clutches, of the double-clutch transmission, are connected and mounted on the transmission housing ().

Hybrid drive arrangement

A drive system () for a motor vehicle has a double clutch transmission (), with two component transmissions (), a double clutch () and an output shaft (). An internal combustion engine () optionally can be connected operatively to one of the component transmissions () via the double clutch () to drive the output shaft (). A gear drive () is arranged rotatably on the output shaft (). An electric machine () can be connected operatively via the gear drive () to at least one fixed gear () of one of the component transmissions () to drive the output shaft () and/or to recover kinetic energy from the drive system ().

Drive system and method for operating such a drive system, in particular for a motor vehicle

A hybrid drive train () has an electric machine () with a stator () fastened to a clutch housing () and a rotor () that can be rotated relative to the stator () with a radial gap () therebetween. The hybrid drive train () also has a wet-running multiple disk clutch device () with an outer multiple disk carrier () that has at least one oil passage opening (). The radial gap () between the rotor () and the stator () is shielded from the oil passage opening () of the outer multiple disk carrier () by an oil shielding device ().

Hybrid drive train

Growing community of inventors

Weinsberg, Germany

Henrik Schrage