METHOD AND SYSTEM FOR SERVICING HIGH VOLTAGE BATTERY PACKS
First Claim
1. A battery service unit for state-of-charge (SOC) maintenance and management of an energy storage system (ESS) configured for installation in an operating environment, 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.
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Accused Products
Abstract
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.
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Citations
25 Claims
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1. A battery service unit for state-of-charge (SOC) maintenance and management of an energy storage system (ESS) configured for installation in an operating environment, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for state-of-charge (SOC) maintenance and management of an energy storage system (ESS) configured for installation in an operating environment, comprising:
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a) selecting a desired SOC level for the ESS; b) transferring energy between the ESS and an external high voltage service unit through a primary connection system of the operating environment; and c) dissipating selectively said energy transferred between the ESS and said external high voltage service unit through said primary connection system using said high voltage service unit to automatically set an SOC level for the ESS to said desired SOC level when said SOC level for the ESS exceeds said desired SOC level. - View Dependent Claims (19, 20)
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21. A method for state-of-charge (SOC) maintenance and management of an energy storage system (ESS) installed in an operating environment, comprising:
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a) selecting a desired SOC level for the ESS; b) testing the operating environment for a non-compromised operation using an external service unit coupled to the operating environment using a primary connection system, said primary connection system including a control interface; and c) dissipating selectively, responsive to a discharge command provided from said external service unit, energy stored in the ESS using the operating environment to automatically set an SOC level for the ESS to said desired SOC level when said SOC level for the ESS exceeds said desired SOC level and when the operating environment includes said non-compromised operation. - View Dependent Claims (22, 23, 24)
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25. A battery service unit for service of high voltage batteries used in electric vehicles, comprising:
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a vehicle signature simulation circuitry that provides an electrical characteristic of a vehicle causing a battery management system in a battery pack to provide high voltage access to batteries in the battery pack and low voltage communication access to the battery management system; a battery service communication interface that communicates with the battery management system over the low voltage communication access when charging and discharging the battery pack; and a primary charging port connection with the battery pack used to charge and discharge the battery pack when the battery service unit determines that the battery pack and battery management system are functioning properly, wherein the battery management system facilitates the charging and discharging from the battery service unit; and a secondary charging port connection with the battery pack used to charge and discharge the battery pack directly without intervention from the battery management system when the battery service unit determines at least one of the battery pack and the battery management system is not functioning properly.
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Specification