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System for Allocating the Cost of Charging an Electric Vehicle in a Public or Semi-Public Location

IP.com Disclosure Number: IPCOM000235720D
Publication Date: 2014-Mar-24
Document File: 4 page(s) / 32K

Publishing Venue

The IP.com Prior Art Database

Abstract

This article presents according to one ombodiment a charging pole to charge an electric vehicle comprising an authentication unit to authenticate the provider and the consumer of the electricity and a metering unit for metering the provided electricity. According to a further embodiment a charging cable to charge an electric vehicle is disclsoed comprising an authentication unit to authenticate the provider and the consumer of the electricity and a metering unit for metering the charged electricity.

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System for Allocating the Cost of Charging an Electric Vehicle in a Public or Semi-Public Location

    Owners of electric vehicles (EVs) need the ability to charge them when they are parked. If the car is parked at a location where the car owner is responsible for paying for electricity, there are no special requirements. However, if the EV is parked somewhere else then the owner would like to have the convenience of being able to charge his EV and at the same time be able to pay for the electricity consumed.

    Given that the current globally installed base of equipment to distribute and meter power does not support this function, a system is required to allow it to be implemented on top of the existing infrastructure. The functions required from such a system include:

o Metering the power consumed from a specific plug for a specific time, i.e., while the EV is being charged.

o Identifying the Consumer of the power, i.e., the person whose account is to be charged for the energy consumed.

o Identifying the Provider of the power, i.e., the individual or commercial customer who will be charged for all energy consumed at the location where the EV is being charged.

    For purpose of this description, the Supplier is the company who supplies electricity to the Provider and who bills the Provider for that power. Furthermore the Supplier must have a direct relationship with the Consumer or a relationship with the Consumer's Supplier to enable billing of the Consumer.

    In the system described herein, the Consumer and Provider will be identified to the Supplier before any energy is consumed. All electricity consumed during the EV charging session will be metered. When the charging is complete (i.e., when the Consumer disconnects his EV from the electricity source) the consumed power is reported to the Supplier who will credit the account of the Provider and bill the account of the Consumer appropriately. A heartbeat with intermediate consumption information will be reported on a regular basis to cap the maximum loss if the system should fail before the full consumption can be reported. If a specified number of consecutive heartbeats are not received, the session will be considered terminated, and billing/crediting will be done according to the most recent heartbeat.

    The legacy system for distribution and billing electricity (the mechanism in use such that the Supplier bills the Provider for power) is not changed by the mechanism

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described herein. The system proposed here would result in credits and debits to the Provider and Consumer on top of the existing mechanisms.

    Assumption: The ability to transmit data over the power grid from any plug to the Supplier is considered prior art.

Two cases will be considered:


Charging Pole: This solution is more appropriate for public areas (e.g., a

public parking lot) where the number of Consumers is likely to be a large, diverse group, and the cost of installing a Charging Pole can be justified as...