Cycle life management for mixed chemistry vehicle battery pack
AssigneeGM Global Technology Operations LLC
InventorsShuonan Xu, Jun-mo Kang
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Abstract
A method for cycle life management of a mixed chemistry battery pack configured for electrically powering a traction motor of a vehicle. The method may include determining a driving load request made for requesting the mixed chemistry battery pack to provide a requested amount of electrical power to the traction motor for purposes of driving the vehicle and disconnecting the driving load request into a battery request suitable for providing the requested amount of electrical power from the mixed chemistry battery pack while managing a cycle life of the mixed chemistry battery pack independently of the driving load request.
Claims20
A method for cycle life management of a mixed chemistry battery pack configured for electrically powering a traction motor of a vehicle, the mixed chemistry battery pack including an energy subpack connected in parallel with a propulsion subpack, the method comprising:
- determining a driving load request made for requesting the mixed chemistry battery pack to provide a requested amount of electrical power to the traction motor for purposes of driving the vehicle;
- and
- generating a battery request in response to the driving load request, the battery request suitable for providing the requested amount of electrical power from the mixed chemistry battery pack while managing a cycle life of the mixed chemistry battery pack independently of the driving load request.
A cycle life managed mixed chemistry battery pack configured for electrically powering a traction motor of a vehicle, comprising:
- a propulsion subpack;
- an energy subpack;
- a converter configured for controlling electrical energy transfer from the energy subpack to the propulsion subpack;
- and
- a controller configured for:
- determining a driving load request made for requesting the mixed chemistry battery pack to provide a requested amount of electrical power to the traction motor for purposes of driving the vehicle;
- and
- generating a battery request in response to the driving load request, the battery request suitable for providing the requested amount of electrical power from the mixed chemistry battery pack while managing a cycle life of the mixed chemistry battery pack independently of the driving load request.
A cycle life managed electrical power system for powering a traction motor of a vehicle, comprising:
- a mixed chemistry battery pack having a propulsion subpack, an energy subpack, and a converter configured for controlling electrical power transfer from the energy subpack to the propulsion subpack;
- and
- a controller configured for:
- determining a driving load request made for requesting the mixed chemistry battery pack to provide a requested amount of electrical power to the traction motor for purposes of driving the vehicle;
- and
- generating a battery request in response to the driving load request, the battery request being suitable for providing the requested amount of electrical power from the mixed chemistry battery pack while managing a cycle life of the mixed chemistry battery pack.
Dependencies are inferred from the claim text.