Audi Ag

Schalli, Niklas

Niklas Schalli

Sami Robert Zaki

Holger Haecker

Florian Steinlechner

A method for preparing the supply of electrical power to a vehicle having a supply device from a supply apparatus providing at least a supply voltage, wherein the vehicle and the supply apparatus are separate from one another and releasably electrically connectable to one another by a plug contact disposed in a line between the supply device of the vehicle and the supply apparatus. While preparing the supply of electrical power and after the supply device of the vehicle has been electrically connected to the supply apparatus connected by way of the plug contact, a specific voltage identifying the voltage class of the vehicle is determined. The supply apparatus reports back the determined voltage class to the supply device of the vehicle via a power line communication.

Method for preparing the supply of power to a vehicle where a voltage level of the power is decided by communication between the supply apparatus and the supply device

A diagnostic device for checking a control signal wire between a controller of a motor vehicle and a charging port for a battery of the motor vehicle located on the motor vehicle side is disclosed, wherein on the charging port side, a first resistor is provided in the controller connecting the control signal wire to chassis ground, and a second resistor connected in parallel to the first resistor is provided. An evaluation device of the controller has a current source and/or a voltage source for supplying an electric current and/or a voltage independent of a charging process, and is configured to measure an electric current indicating a defect in the control signal wire, or a voltage indicating a defect in the control signal wire, utilizing the first and the second resistor.

Diagnostic device for checking a control signal line

A method for operating an onboard power supply system of a motor vehicle, wherein the onboard power supply system includes at least two electric networks with different supply voltages. A network component, in particular an electrical load, is connected to each network, and a high-voltage battery is connected to the high-voltage network. A specified amount of power is supplied from the high-voltage network to a low-voltage network, wherein the supply voltage of the low-voltage network is lower than the supply voltage of the high-voltage network. Power of at least one network component connected in the low-voltage network is reduced when a power shortfall occurs in the high-voltage network while the high-voltage battery is being charged. The amount of power supplied by the high-voltage network to the network component in the low-voltage network is also reduced.

Method for operating an on-board power supply system of a motor vehicle

A diagnostic device for checking a control signal line between a control device of a motor vehicle and a motor-vehicle-side charging connection for a battery of the motor vehicle, includes a first resistor disposed at the charging connection and connecting the control signal line to ground, a second resistor connected in parallel with first resistor to form a parallel circuit, an evaluation device associated with the control device and comprising a current source and/or a voltage source for supplying a corresponding current or voltage outside a charging operation, and a diode connected in series with the first and second resistors and blocking a current flow from ground to the control signal line. The evaluation device is configured to measure, by using the first and second resistor, a current indicating a control signal line defect or a voltage indicating a control signal line defect.

A plurality of types of heat-treatment requests are described in a signal in a single byte.

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Munich, Germany

Niklas Schalli