Detection of an Electric Vehicle Via a Two-Line Bus Termination
AssigneeABB E-mobility B.V.
InventorsLars Peter Bech, Jim van-der-Heijden
Life of this patent
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Abstract
A method and system for detection of an electric vehicle via a two-line bus includes a detection unit for detecting a presence status of an electric vehicle. The electric vehicle connects to a charger having the detection unit. The detection unit includes a first output for driving a two-line bus, which connects the charger and the electric vehicle; and a first input for receiving signals from the two-line bus. An additional input detects a second bus termination arranged within the electric vehicle through a voltage measurement and/or a current measurement of the two-line bus, wherein detecting the second bus termination is an indication of the presence status of the electric vehicle.
Claims17
A detection unit for detecting a presence status of an electric vehicle, the electric vehicle configured for connecting to a charger that comprises the detection unit, the detection unit comprising:
- a first output configured for driving a two-line bus, which is to connect the charger and the electric vehicle;
- a first input configured for receiving signals from the two-line bus;
- and
- an additional input configured for detecting a second bus termination arranged within the electric vehicle by means of a voltage measurement and/or a current measurement of the two-line bus,
- wherein detecting the second bus termination is an indication of the presence status of the electric vehicle.
A detection system for detecting a presence status of an electric vehicle, the system comprising a detection unit, the detection unit comprising:
- a first output configured for driving a two-line bus, which is to connect the charger and the electric vehicle;
- a first input configured for receiving signals from the two-line bus;
- and
- an additional input configured for detecting a second bus termination arranged within the electric vehicle by means of a voltage measurement and/or a current measurement of the two-line bus,
- wherein detecting the second bus termination is an indication of the presence status of the electric vehicle.
A method for detecting a presence status of an electric vehicle, the method comprising:
- pausing a two-line bus configured for exchanging information packets between a first bus instance within a charger and a second bus instance within the electric vehicle, the second bus instance comprising a second bus termination;
- activating a detection unit within the first bus instance for a detection activation time span;
- and
- detecting, by the detection unit, the second bus termination by utilizing a voltage measurement and/or a current measurement of the two-line bus, wherein detecting the second bus termination is an indication of the presence status of the electric vehicle.
Dependencies are inferred from the claim text.