Drive assembly for a vehicle

A drive assembly for a vehicle having an internal-combustion engine for delivering driving energy, comprising an exhaust gas turbocharger having a compressor, the turbine being drivable by exhaust gases of the internal-combustion engine and the compressor being drivable by the turbine, and an air guiding system configured to feed fresh air to the compressor in which the fresh air is compressed to form charge air and to guide the charge air from the compressor to the internal-combustion engine, and an additional compressor operatively arranged to generate compressed fresh air which, as a function of system requirements, is feedable to the air guiding system upstream of the internal-combustion engine, the additional compressor comprising an existing vehicle compressor provided for a purpose other than generating the compressed fresh air, wherein the internal-combustion engine is an Otto engine, an emission control system comprising a catalyst is arranged in an exhaust pipe downstream of a turbine of the exhaust gas turbocharger in an exhaust pipe, and a connectable secondary air supply system having a connectable secondary air compressor which, as a function of the system requirements, feeds fresh air via a secondary air pipe upstream of the catalyst to the exhaust gas pipe, the secondary air compressor being the additional compressor, and at least one valve device being operatively arranged to feed the compressed fresh air generated by the additional compressor as a function of the system requirements to the air guiding system or the exhaust pipe, and the drive assembly has a throttle valve in a charge air pipe guiding the charge air from the compressor to the internal-combustion engine, the at least one valve device being operatively arranged in the secondary air pipe, and the throttle valve is operative to throttle the charge air for supplying the catalyst with compressed fresh air.