Zf Friedrichshafen Ag

Zf Drivetech (suzhou) Co. Ltd.

Frank Seemann

Martin Mach

Andre Ehrsam

Gabriel Scherer

Matthias Engicht

Zbynek Stepan

Paul Lenz

Marco Di Sarno

Vladimir Dvorak

Cong Ren

Werner Hechberger

Kai Borntraeger

Andreas Grossl

Maik Woerl

Tato Gervais Amani

Kai Bornträger

Andreas Grossi

Zbynek Štepán

Maik Wörl

Vladimír Dvojak

Andreas Kubisch

A device for providing operating energy for an auxiliary drive for an electric vehicle. The device has a battery interface and an inverter, which is designed to convert, for a boost function, a direct voltage into an alternating voltage. The device also has a switch apparatus, which includes: —a switch terminal, which connects the switch apparatus to the inverter; —an auxiliary interface for connecting the device to the auxiliary drive; and —a charging interface for feeding electrical energy into the device. The switch apparatus is designed to connect the charging interface to the switch terminal and to the auxiliary interface by a switching signal.

Device and method for providing operating energy for an auxiliary drive for an electric vehicle, and electric vehicle

A network of an electric vehicle has an energy supply interface, an inverter, an energization interface and a soft starter. The inverter has a first inverter connection configured to connect the inverter to the energy supply interface and a second inverter connection configured to connect the inverter to the energization interface and the soft starter. The inverter is configured to convert a DC voltage applied to the first inverter connection to an AC voltage and to supply same at the second inverter connection. The soft starter is configured to reduce an input voltage applied to the first soft starter connection and to supply the operating voltage, which is reduced compared to the input voltage, at the second soft starter connection.

Network for supplying an operating voltage for an electric vehicle, electric vehicle and method for supplying an operating voltage

Apparatus () for providing an operating energy () for an auxiliary drive () for an electric vehicle (). The apparatus () has a battery interface () for connecting the apparatus () to a vehicle battery (), a bidirectional inverter () having a first terminal for connecting the inverter () to the battery interface () and a second terminal. The inverter () is formed to convert a DC voltage into an AC voltage and back. A switch with a terminal which the switch to the second terminal, to an auxiliary interface () for connecting the apparatus () to the auxiliary drive () and to a charge interface () for feeding electrical energy () into the apparatus (). The switch connects the charge interface to the switch and to the auxiliary interface (). The apparatus () has a control device for providing the boost signal and the charge signal.

Device for providing an operating power for an auxiliary drive for an electric vehicle and method for converting an operating voltage

An apparatus for increasing an input voltage for an electric vehicle has an energy supply interface to a vehicle battery, a DC-DC converter and an inverter. The DC-DC converter has a first connection for connection to the energy supply interface and a second connection for connection to the inverter. The DC-DC converter is designed to supply an output voltage at the second connection in response to an amplifier signal, the output voltage being increased with respect to an input voltage applied to the first connection. The inverter has an inverter connection for connecting the inverter to the second connection and has at least one energization interface for energizing at least one unit coupled to the energization interface, the inverter converts a DC voltage applied to the inverter connection to an AC voltage and to supply same to the energization interface.

Apparatus for increasing an input voltage for an electric vehicle, electric vehicle and method for operating an apparatus

A power distribution includes first and second inputs, first and second outputs, and a third output configured to connect to a low-voltage vehicle power supply, a high-voltage distributor is connected to the first input and forms the connection between the energy storage and further components of the power distribution. A controller monitors at least the high-voltage distributor and can control components of the power distribution. At least one inverter is arranged in the current path between the high-voltage distributor and at least one of the contacts for the first output, the second output or the second input, a first converter is arranged between the high-voltage distributor and the third output and converts a DC voltage provided by the high-voltage distributor to a lower DC voltage.

Power distributor unit for a utility vehicle and utility vehicle comprising said power distributor unit

An electric drive axle for a vehicle includes at least one first electric vehicle drive system () for driving at least one vehicle wheel () and at least one connection interface () for at least one power take-off (PTO). The vehicle drive system () is coupled at least to one first double shift element () such that, at least in a first engagement position of the first double shift element (), the vehicle drive system () is drivingly coupled to at least one vehicle wheel () and, in a second engagement position of the first double shift element (), the vehicle drive system () is decoupled from the at least one vehicle wheel () and is drivingly coupled to the connection interface () for the power take-off (PTO). A vehicle with an electric drive axle is also provided.

Electric drive axle for a vehicle

An axle drive () for a motor vehicle axle includes at least a first drive unit (), a second drive unit (), and an output axle (). The first and second drive units () are arranged such that an overall center of gravity () of the axle drive () is situated proximate to a center of the output axle () and/or an axis of rotation of a vehicle wheel of the motor vehicle driven by the axle drive ().

Axle drive

A drive device for an electrically driven axle of a motor vehicle may include at least one electric machine, a shiftable transmission connected downstream from the at least one electric machine, and a differential coupled to the transmission for distributing drive torque to the axle. The transmission has first and second planetary gear sets connected in series. The at least one electric machine engages with an external toothing of a ring gear of the first planetary gear set. A carrier of the first planetary gear set is rotationally fixed to a sun gear of the second planetary gear set. A sun gear of the first planetary gear set is detachably couplable to a housing. A ring gear of the second planetary gear set is coupled to the housing. A carrier of the second planetary gear set is an output of the transmission. The first planetary gear set is interlockable.

Growing community of inventors

Euerbach, Germany

Frank Seemann