| 摘要 |
Apparatus and methods for discerning information about a vehicle (e.g., an electric vehicle's make, model, and/or year of manufacturer) being charged by an electric vehicle supply equipment ("EVSE"). Vehicle make, model, and model year can be discerned by measuring charging current supplied to the electric vehicle over time and comparing this profile to stored profiles of known electric vehicles. Vehicle information can also be discerned by monitoring a pilot signal sent to the electric vehicle by the EVSE. When the EVSE is ready to charge the electric vehicle, the pilot signal sends a charge-ready indication. When the electric vehicle is ready to be charged, it sends an acknowledgement. The time between the EVSE indicating it is ready to charge and the electric vehicle acknowledging that it is ready to be charged is measurable and can used to identify an electric vehicle make, model, and model year. |
