High-voltage battery off-board chargers
AssigneeFord Global Technologies, LLC
InventorsJeffery R. GRIMES, Benjamin A. TABATOWSKI-BUSH, William David TREHARNE, Jonathan Andrew BUTCHER, Robert John LINK, Xuemei SUN
Life of this patent
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Abstract
A vehicle charging system includes a charger configured to receive power form an external power source and a connector. The connector is configured to receive power from the charger and transmit the received power to a vehicle via a high-voltage cable. The cable is configured to connect the connector to a vehicle battery. Each of the charger and the connector includes a high voltage interlock loop (HVIL) configured to cause the charger to cease power transfer upon recognizing a predetermined voltage difference at a pair of ports of the HVIL.
Claims20
A vehicle off-board charger comprising:
- a charger component configured to receive power from an external power source and transfer the received power to a vehicle;
- and
- a gateway configured to communicate with the vehicle via a vehicle connection, to receive controller area network (CAN) information from a vehicle controller, and in response to the CAN information indicating charge complete or fault detected, to cease the transfer of power of the charger component.
An off-board charger for a vehicle comprising:
- a gateway controller programmed to communicate with a vehicle battery controller and a charger component of the charger to
- receive battery information from the vehicle,
- transmit a constant voltage request to the charger component in response to the battery information,
- receive a battery contactor status from the battery controller,
- transmit current instructions to the charger component in response to the battery contactor status indicating closed contactors,
- receive battery charge information from the controller, and
- transmit a zero voltage message to the controller in response to the battery charge information indicating battery charge is complete.
A vehicle charging system comprising:
- a charger configured to receive power form an external power source;
- and
- a connector configured to receive power from the charger and transmit the received power to a vehicle via a high-voltage cable, wherein the cable is configured to connect the connector to a vehicle battery and wherein each of the charger and the connector includes a high voltage interlock loop (HVIL) configured to cause the charger to cease power transfer upon recognizing a predetermined voltage difference at a pair of ports of the HVIL.
Dependencies are inferred from the claim text.