Method and system for servicing high voltage battery packs

摘要

A system and method for providing energy management and maintenance of a high energy battery pack that does not require installation of the battery pack into an operational EV. A battery service unit has multiple access mechanisms to charge or discharge a high energy battery pack through a primary or secondary high voltage port of the pack, irrespective of whether the battery pack is installed into an operating environment by adding a capability of providing a signature duplicating installation of the pack in the operating environment when necessary.

主权项

1. A battery service unit for state-of-charge (SOC) maintenance and management of a high-voltage energy storage system (ESS) that includes a battery management system and is configured for installation in an operating environment, the battery service unit separate from the battery management system and comprising:
a primary connection system interfacing with the ESS; a high voltage battery service interface coupled to said primary connection system, said high voltage battery service interface including a discharge port; a high voltage discharger unit coupled to said discharge port, said high voltage discharger unit configured to dissipate energy from the ESS transferred through said primary connection system; and a controller, coupled to said high voltage battery service interface, selectively dissipating energy from the ESS using said high voltage discharger unit to automatically set an SOC level for the ESS to a predetermined SOC level when said SOC level for the ESS exceeds said predetermined SOC level; wherein the ESS is NOT installed in the operating environment, wherein the ESS includes an interlock inhibiting an energy transfer with respect to the ESS unless said interlock detects an operating environment signature, and wherein said primary connection system includes a control interface in communication with said interlock, further comprising: an operating environment simulator coupled to said interlock using said control interface, said operating environment simulator providing said operating environment signature to said interlock and enabling said energy transfer with respect to the ESS.