Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 pip. 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.

Abstract: An electromagnetic hydraulic valve (18) comprising an armature (2) which, in the region of its bottom-proximate end position (7) comprises a pressure chamber (9) which serves to damp the movements of the armature (2) and which is relieved from pressure via an annular gap (11) and for enhancing the damping action, the armature (2) further comprises a front-end cavity (36) for receiving hydraulic medium.