Schaeffler Technologies Ag & Co .kg

Eduard Enderle

Vincent Leonhardt

Ronald Glas

Cédric Blaes

Peter Schwanemann

Julian Botiov

Huan Fu

Nicolai Gramann

Patrick Augustin

Andre Speck

Daniel Eckstein

Johannes Herrmann

Christian Möhring

Sebastian Ackermann

Stephan Preising

Denis Muller

A method is provided for testing switch signals of an inverter of an electric machine of a drive system of a motor vehicle. The electric machine is controlled via a pulse-width modulation generated by a control unit using a target duty cycle and a triangular-waveform voltage sequence. An actual duty cycle of a current pulse-width modulation is continuously ascertained from the switch signals and compared with the target duty cycle of the control unit.

Method for testing switch signals of an inverter of an electric machine controlled via a pulse-width modulation

An electrical circuit arrangement includes an inverter, a driver circuit and a protective circuit. The inverter includes a plurality of inverter switching elements each having a drive connection. The drive connection of at least one inverter switching element is connected to the driver circuit via a first switching element of the protective circuit (). A drive connection of the first switching element is connected to a circuit node, which is connected to a first potential via a resistor and to a second potential via a second switching element. The protective circuit comprises a comparison device, an input of which is connected to an operating voltage and a reference voltage and an output of which is connected to a drive connection of the second switching element so that, if the operating voltage deviates from the reference voltage, the second switching element is switched and the first switching element is switched due to one of the first potential or the second potential being applied to the circuit node as a result of the switching of the second switching element.

Electrical circuit arrangement and drive arrangement for driving a motor vehicle

An electronic system housing for an E-axle drive of a motor vehicle is disclosed. The electronic system housing comprises a power electronic system received within the electronic system housing for processing voltage in high voltage systems. At least one low voltage component is further received within the electronic system housing.

Electronics housing for an E-axis drive and E-axis having an electronics housing

A busbar for power electronics is disclosed for connecting a first electrical element to a second electrical element. The busbar includes at least one positive lamination as a first current-carrying element and at least one negative lamination as a second current-carrying element. The at least one positive lamination is arranged on the at least one negative lamination in such a way to form a laminated stack.

Busbar comprising a metal-sheet stack and method for producing a busbar

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Gengenbach, Germany

Eduard Enderle