Audi Ag

Herbert Ernst

Tobias Brok

A method and a device for determining wheel slip information of an electrically driven wheel of a motor vehicle, according to which during travel, the speed (nE-motor) of an electric motor driving the wheel is detected and the detected speed (nE-motor) of the electric motor is used to determine the wheel slip information.

Method and device for determining wheel slip information of an electrically driven wheel of a motor vehicle

A method for operating an assistance system of a motor vehicle, with a first control unit and with a second control unit, wherein a first rotational speed sensor is connected to the first control unit for recording a rotational speed of a first wheel, wherein a second rotational speed sensor is connected to the second control unit for recording a rotational speed of a second wheel, and wherein the first control unit is coupled to the second control unit using signal technology.

Method for operating an assistance system of a motor vehicle

A method for activating a parking brake of a motor vehicle, wherein the parking brake is activated automatically if the motor vehicle is at a standstill or its ignition is switched off. The motor vehicle and/or the environment is detected subsequent to the automatic activation of the parking brake, and that said current situation is compared to stored situations of the motor vehicle and/or the environment, for which a rolling capability of the motor vehicle at a standstill and/or with its ignition switched off has been designated.

Method for activating a parking brake of a motor vehicle, and system for controlling a parking brake of a motor vehicle

A method is indicated for operating a motor vehicle, as well as a motor vehicle, having an electric machine for the positive or negative acceleration of the motor vehicle as well as a mechanical brake device for reducing the vehicle speed of the motor vehicle. In a special brake operation mode, a deceleration demand (V) is detected, and a target rotational speed curve (n) of the electric machine is determined in dependence on the deceleration demand (V). An actual rotational speed (n) of the electric machine for reducing the vehicle speed of the motor vehicle is then adapted to the target rotational speed curve (n) so determined.

Method for operating a motor vehicle, and motor vehicle

A brake system for a motor vehicle. A braking pressure source and at least one wheel brake, which can be impinged by brake pressure provided by the brake pressure source. The brake pressure is provided with at least one pressure piston arranged so that it is linearly displaceable in a pressure cylinder, and with an engine for displacing the pressure piston in the engine which is coupled to pressure piston via a gear. At the same time the gear is provided with force transmission paths which are at least partially parallel to each other and arranged in an operative connection between the engine and the pressure piston.

Brake system for a motor vehicle

A brake system for a motor vehicle has at least a first wheel brake and at least a second wheel brake. A first inlet valve is fluidically connected, on the one hand, to the first wheel brake, and, on the other hand, to a brake pressure source, and a second inlet valve is fluidically connected, on the one hand, to the second wheel brake, and, on the other hand, to the brake pressure source. In this case, a switching valve is provided, which fluidically connects the one fluid outlet of the second inlet valve in a first switching position to the second wheel brake and in a second switching position to the first wheel brake.

Brake system for a motor vehicle as well as method of operating a brake system for a motor vehicle

A brake system for a motor vehicle, having a brake pressure source and at least one first wheel brake and at least one second wheel brake, which can be acted on with a brake pressure supplied by the brake pressure source. The first wheel brake is fluidically connected at a first inlet valve and at a first outlet valve, which is fluidically parallel to the first inlet valve, and at a first separating valve via the first inlet valve, and the second wheel brake is fluidically connected at a second inlet valve and at a second outlet valve, which is fluidically parallel to the second inlet valve, and at a second separating valve via the second inlet valve.

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Ingolstadt, Germany

Herbert Ernst