Zf Friedrichshafen Ag

Jan Döring

Rico Glöckner

Migen Bebeti

Norbert Feuchtner

Gerhard Stempfer

Peter Tepfenhart

Johannes Kugler

A traction drive system for a work machine, including at least one electric motor, a transmission, and a controller. The controller is configured to select a gear ratio of the transmission depending on a change to be expected in a motor output of the at least one electric motor. The change to be expected in the motor output is conditional on a change in the gear ratio of the transmission. The change to be expected in the motor output is determined on the basis of at least one operating parameter of the work machine.

Traction drive system and method for operating a traction drive system

A method for adaptively setting a shift point of a multi-speed powershift transmission of a working machine that includes an electric drive system and a control device. The electric drive system has a battery and an electric motor. The multi-speed powershift transmission is connected to the electric drive system. The control device is connected to the electric drive system and the multi-speed powershift transmission in a signal-effective manner. The method includes specifying a tractive force which must be present during shifting operations of the multi-speed powershift transmission, determining a state variable of the electric drive system, and determining based on the state variable and the specified tractive force, a driving speed at which the specified tractive force is essentially maintained during the shifting operation. The method includes setting the shift point at the determined driving speed and carrying out the shifting operation at the shift point.

Method for adaptively determining a shifting point of a multi-gear powershift transmission of a working machine, control unit, computer program product and working machine

A drive axle for a work machine for driving wheels that are coupled to the drive axle. The drive axle includes a spur gear stage with an input shaft. A differential gear unit couples to the spur gear stage and to the wheels via wheel drive shafts. The drive axle further includes a reduction gear unit with an output element couples to the input shaft of the spur gear stage&#x2014;and an input element which couples to an output shaft of an electric drive machine.

Growing community of inventors

Passau, Germany

Jan Döring