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
First Claim
1. A method comprising:
- establishing an electrical connection representing a first communication path between a supply device housed in a vehicle and an external supply apparatus via a line and a plug contact,with the supply apparatus, determining via the first communication path a defined voltage characteristic of a voltage class of the vehicle and identifying the voltage class of the vehicle based on the determined defined voltage characteristic, wherein the defined voltage characterizing the voltage class of the vehicle is generated by the voltage drop across a voltage divider comprising pre-selected resistors, by measuring a voltage present at the voltage divider formed by the pre-selected resistors with a voltmeter at the supply apparatus, and evaluating the voltage applied to or dropping across the voltage divider by a controller located in the supply device of the vehicle,with the supply apparatus, reporting the identified voltage class back to the supply device of the vehicle via a second communication path in the form of a power-line communication, andsupplying electrical energy to the vehicle from the supply apparatus, wherein the supplied electrical energy charges an electrical energy storage device of the vehicle based on the voltage class of the vehicle,wherein the voltage class is a maximum of 600V or a maximum of 1000V or a maximum of 1500V.
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Abstract
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.
81 Citations
6 Claims
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1. A method comprising:
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establishing an electrical connection representing a first communication path between a supply device housed in a vehicle and an external supply apparatus via a line and a plug contact, with the supply apparatus, determining via the first communication path a defined voltage characteristic of a voltage class of the vehicle and identifying the voltage class of the vehicle based on the determined defined voltage characteristic, wherein the defined voltage characterizing the voltage class of the vehicle is generated by the voltage drop across a voltage divider comprising pre-selected resistors, by measuring a voltage present at the voltage divider formed by the pre-selected resistors with a voltmeter at the supply apparatus, and evaluating the voltage applied to or dropping across the voltage divider by a controller located in the supply device of the vehicle, with the supply apparatus, reporting the identified voltage class back to the supply device of the vehicle via a second communication path in the form of a power-line communication, and supplying electrical energy to the vehicle from the supply apparatus, wherein the supplied electrical energy charges an electrical energy storage device of the vehicle based on the voltage class of the vehicle, wherein the voltage class is a maximum of 600V or a maximum of 1000V or a maximum of 1500V. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification