摘要:
A system for supplying power internal to a battery pack is disclosed. In one embodiment, the system includes a power supply that is powered by battery cells in the battery pack such that each battery cell supplies substantially the same amount of current to power the power supply. In this way, power can be distributed within the battery pack without causing imbalance between an amount of charge stored in different battery cells.
摘要:
Systems and methods for communicating notice to limit battery degradation within a battery pack are disclosed. In one example, a signal is generated and passed between modules of a battery pack to provide notice to limit battery pack degradation. The system and method may be particularly useful for a battery pack with distributed battery modules.
摘要:
Systems and methods for controlling a contactor of a battery pack are disclosed. In one embodiment, the coil of the contactor is controlled by a power supply. Further, the contactor coil holding current may be adjusted in response to vehicle drive mode.
摘要:
Systems and methods for communicating notice to limit battery degradation within a battery pack are disclosed. In one example, a signal is generated and passed between modules of a battery pack to provide notice to limit battery pack degradation. The system and method may be particularly useful for a battery pack with distributed battery modules.
摘要:
Systems and methods for communicating a state of a battery to a vehicle controller are disclosed. In one example, a battery pack outputs a signal indicative of an amount of capability the battery pack has to source or sink current at present operating conditions. The system and method may improve vehicle drivability and reduce battery pack degradation.
摘要:
Systems and methods for communicating a state of a battery to a vehicle controller are disclosed. In one example, a battery pack outputs a signal indicative of an amount of capability the battery pack has to source or sink current at present operating conditions. The system and method may improve vehicle drivability and reduce battery pack degradation.
摘要:
Systems and methods for adjusting sampling and switching rates of a battery management system are provided. For example, a rate at which different battery cells of a battery cell stack are in communication with an analog to digital converter may be adjusted in response to conditions of a battery cell.
摘要:
Systems and methods for controlling the output of a battery pack are disclosed. In one example, a battery pack contactor is opened in response to battery pack current. The system and method may reduce battery pack degradation and increase system flexibility.
摘要:
Systems and methods for controlling the output of a battery pack are disclosed. In one example, a battery pack contactor is closed after receiving a request to open the battery pack contactor during a power-up sequence. The system and method may reduce battery pack degradation.
摘要:
Systems and methods for balancing battery cells of a battery pack are disclosed. In one example, a charge imbalance is determined while battery cells operate in a high charge resolution voltage range. The charge imbalance determined during operation in the high charge resolution voltage range may be removed when the battery cells are operated in a low charge resolution voltage range. The system and method may be particularly useful for balancing battery cells that operate in the low charge resolution voltage range for a large portion of their operating time.