Patent ID: 7540151

Claim:
A drive device for a motor vehicle, comprising: a multi-cylinder internal combustion engine, each cylinder including at least two outlet valves wherein at least one of the at least two outlet valves has a variable control stroke; at least two exhaust gas turbocharger devices; wherein at least one outlet valve of each cylinder is assigned to at least one of the two exhaust gas turbocharger devices such that an exhaust gas duct assigned to the one outlet valve is coupled to a turbine wheel of the one exhaust gas turbocharger device; wherein a compressor side on the output side of the exhaust gas turbocharger device, which on the intake side is connected by its turbine to the controllable outlet valves, a first controllable valve is assigned for closing the compressor outlet such that an outflow of intake air compressed via a compressor of the first exhaust gas turbocharger device, via the compressor of the second exhaust gas turbocharger device, is prevented; wherein on the compressor side on the output side of the first exhaust gas turbocharger device, which on the intake side is connected by its turbine to the controllable outlet valves, a second controllable valve is assigned for a controlled conducting away of the air compressed via the compressor of the second exhaust gas turbocharger device, and wherein a control unit is operatively configured such that, after opening the controllable outlet valves until reaching a predetermined rotary speed of the compressor of the second exhaust gas turbocharger device and/or until a predetermined period of time has elapsed after opening the controllable outlet valves, the first controllable valve is closed and the second controllable valve is opened.