Use Cases for Customer Communication for Plug-in Electric Vehicles

Standard:
Scope:

This SAE Information Report J2836/5™ establishes the use cases for communications between Plug-In Electric Vehicles (PEV) and their customers. The use case scenarios define the information to be communicated related to customer convenience features for charge on/off control, charge power curtailment, customer preference settings, charging status, EVSE availability/access, and electricity usage. Also addresses customer information resulting from conflicts to customer charging preferences. This document only provides the use cases that define the communications requirements to enable customers to interact with the PEV and to optimize their experience with driving a Plug-In Electric Vehicle. Specifications such as protocols and physical transfer methods for communicating information are not within the scope of this document.

Rationale:

PEV recharging is very much different from refueling a conventional internal combustion engine vehicle where a customer inserts the gas pump nozzle and in several minutes the vehicle’s gasoline tank is full. Standard refueling time for a PEV, especially at 120V and 240V charge levels, is several hours. The customer plugs in the EVSE connector and goes about their business for the next several hours expecting the PEV will be fully charged upon their return. The payment approach is therefore also different where is varies depending on the particular grid load at a particular time of day and could vary from weekdays to weekends. Payment for charging at residences is also different than at public charging locations. If a residence is a home, it may be an merely an addition to the existing home energy bill but if a multifamily dwelling, could be different since assigned parking may not be available and if a rental, some agreements may or may not include electricity with the rent. Conversely, public locations may or may not be able to charge for the energy and may only add a fee to the parking fee at the EVSE, to cover the cost of electricity. If however the public location charges a fee for the parking spot or for the energy, there needs to be a means to include this, and any authorizations, for the customer. This document is being updated to include the Use Case (U10) for this payment function.

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