Audi Ag

Marcus Schiele

Siegfried Meixner

Arthur Waldau

Mark Banzer

Gerold Berthold

A method and a drive control device for operating at least two electric drive machines in the event of a change in load of a vehicle. A first torque can be transferred to at least one wheel of a first vehicle axle by a first electric drive machine, and a second torque can be transferred to at least one wheel of a second vehicle axle by a second electric drive machine. Each torque is defined by an amount and by a direction. In the method, it is determined whether a change in load is pending within a first defined timeframe and, if this is affirmed, the second torque is set for a second definable timeframe with a direction which is set opposite a current direction of the first torque.

Method and drive control device for operating at least two electric drive machines in the event of a change in load and motor vehicle with a drive control device

A drive device for a motor vehicle includes an exhaust pipe and a secondary air device having a first secondary air path which feeds into the exhaust gas pipe. Disposed in the first secondary air path is a secondary air pump and a secondary air valve. To compensate, for example, fluctuations in the supply voltage of the secondary air pump, provision is made for arrangement in the secondary air path of a Laval nozzle which can be placed downstream of the secondary air valve.

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Etting, Germany

Marcus Schiele