Robert Boschgmbh

Manfred Grabs

Thomas Zeltwanger

Klaus-Juergen Schuler

Andreas Mittag

A method for operating an electric machine for a vehicle. A target torque of the electric machine is regulated during a driving process depending on a detected time-dependent rotational speed of the electric machine. In the process, the detected rotational speed is differentiated by means of a first high-pass filter over time, the detected rotational speed is then differentiated again over time in a limited manner to positive rotational speed values and using a second high-pass filter, and the target torque is regulated depending on the output value of the second high-pass filter.

Method for operating an electric machine, device, drive device, and motor vehicle

The invention relates to an energy supply system having an energy storage device. The energy storage device has a plurality of energy storage modules that are serially connected in at least one energy supply branch, each comprising an energy storage cell module having at least one energy storage cell, and a coupling device having coupling elements configured to selectively switch the energy storage cell module into the respective energy supply branch, or to circumvent same, and comprising a plurality of driver devices, each dedicated to one of the energy storage modules, and coupled to one of the energy storage modules, and which are configured to actuate the coupling elements of the coupling devices according to a driver signal. The energy supply system further comprises a control device, which is coupled to the driver devices by way of a control signal line, and which is configured to emit a control signal to the driver devices by way of the control signal line, which is provided with a physical control signal parameter, into the value of which a control mode for the driver devices is coded. The driver devices are configured to receive the control signal, and to generate the respective driver signal subject to the value of the control signal parameter, and a control mode assignment that can be predetermined.

Energy supply system comprising an energy storage device and method for actuating coupling devices of the energy storage device

System for controlling an operating parameter of an internal combustion

A circuit for measuring the internal resistance of a lambda probe 10 is provided with a junction device 16 for selectively loading the probe. Loading the probe via a junction device affords the advantage that an internal-resistance measurement can be effected in a simple manner within a very wide range of from several ohms up to several megaohms.

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Wiernsheim, Germany

Manfred Grabs