Method and device for identifying an electric vehicle by receiving a current contract key in an electric vehicle
First Claim
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1. Method for identifying an electric vehicle to a billing centre, comprising the steps of:
- a) initiating at the vehicle side a charging process at a charging station, wherein the charging process comprises providing a charging current to the electric vehicle by;
b) emitting from the vehicle a piece of information about the vehicle being ready for receiving the charging current,c) initiating the charging current,d) checking if a first contract key is stored in the vehicle and;
i) if the check for the first contract key is positive then the first contract key is emitted to the billing centre; and
ii.) if the check for the first contract key is negative then a corresponding piece of information indicating the absence of the first contract key is emitted from the vehicle to the billing centre and a second contract key is emitted from the billing centre to the vehicle after providing the charging current to the vehicle;
wherein the second contract key creates an encrypted and/or signed data packet including information about the charging process; and
the encrypted and/or signed data packet is sent from the vehicle to the billing centre where it is used for billing purposes without the identity of the vehicle being traced by a vehicle identifier.
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Abstract
Method, device and system for charging electric vehicles. Carrying out 28 on the vehicle side a charging process at a charging station, emitting 30 on the vehicle side an item of information about the charging process and receiving 24 on the vehicle side a current contract key after the emission on the vehicle side of the information about the charging process are proposed for identifying an electric vehicle to a billing center.
4 Citations
18 Claims
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1. Method for identifying an electric vehicle to a billing centre, comprising the steps of:
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a) initiating at the vehicle side a charging process at a charging station, wherein the charging process comprises providing a charging current to the electric vehicle by; b) emitting from the vehicle a piece of information about the vehicle being ready for receiving the charging current, c) initiating the charging current, d) checking if a first contract key is stored in the vehicle and; i) if the check for the first contract key is positive then the first contract key is emitted to the billing centre; and ii.) if the check for the first contract key is negative then a corresponding piece of information indicating the absence of the first contract key is emitted from the vehicle to the billing centre and a second contract key is emitted from the billing centre to the vehicle after providing the charging current to the vehicle; wherein the second contract key creates an encrypted and/or signed data packet including information about the charging process; and the encrypted and/or signed data packet is sent from the vehicle to the billing centre where it is used for billing purposes without the identity of the vehicle being traced by a vehicle identifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 15, 16, 18)
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10. Method for identifying an electric vehicle in a billing centre comprising the steps of:
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receiving on the billing centre side a piece of information about the vehicle being ready for receiving a charging current, checking if a first contract key is stored in the vehicle; and i) if the check for the first contract key is negative then; enabling the charging current, enabling a second contract key in the billing centre, and transmitting the second contract key from the billing centre to the vehicle, storing the second contract key in a memory of the vehicle; creating a first encrypted and/or signed data packet with the second contract key including information about the charging process; and sending the first encrypted and/or signed data packet to the billing centre where it is used for billing purposes without the identity of the vehicle being traced by a vehicle identifier, and ii) if the check for the first contract key is positive then; comparing the first contract key stored in the vehicle with a third contract key in the billing centre to determine if the information on the first contract key has changed, and emitting the third contract key from the billing centre to the vehicle if the information on the first contract key has changed; and storing the third contract key in the memory of the vehicle; creating a second encrypted and/or signed data packet with the third contract key including information about the charging process; and sending the second encrypted and/or signed data packet from the vehicle to the billing centre where it is used for billing purposes without the identity of the vehicle being traced by a vehicle identifier. - View Dependent Claims (11, 12, 13, 14, 17)
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Specification