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Power management in electric vehicles

  • US 10,144,304 B2
  • Filed: 07/20/2016
  • Issued: 12/04/2018
  • Est. Priority Date: 03/16/2015
  • Status: Active Grant
First Claim
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1. An electric vehicle power management system used for managing a plurality of battery modules, the electric vehicle power management system comprising:

  • a plurality of battery modules;

    a plurality of battery management systems, each said battery management system comprising a battery management processor, a battery management communication module, and a unique battery management system address, wherein each of the plurality of battery management systems is connected to a corresponding battery module and is configured to manage one or more battery cells of its corresponding battery module;

    an energy management system comprising an energy management processor and an energy management communication module, wherein the energy management system is configured to;

    transmit a command to each of the plurality of battery management systems using a wireless frequency channel, the command carrying an address identifying a first selected battery management system;

    wherein each of the plurality of battery management systems is further configured to use its respective battery management processor and battery management communication module to;

    start receiving the command from the energy management system via the wireless frequency channel; and

    before the command is completely received,compare the address in the command identifying the first selected battery management system to its unique battery management system address; and

    determine, based on the comparison whether it is the first selected battery management system;

    when determining that it is the first selected battery management system, continue receiving the command, and process and respond to the received command from the energy management system; and

    when determining that it is not the first selected battery management system, stop receiving the command from the energy management system and discard partially received command.

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