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Power management in electric vehicles

  • US 9,499,067 B2
  • Filed: 06/23/2015
  • Issued: 11/22/2016
  • 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 and a battery management communication module configured to communicate via a unique wireless frequency channel, 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;

    determine a first wireless frequency channel from a plurality of wireless frequency channels in a wireless data channel, the determined first wireless frequency channel corresponding to the unique wireless frequency channel of a first selected battery management system; and

    transmit a first command to the first selected battery management system using the determined first wireless frequency channel;

    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;

    receive commands from the energy management system transmitted via its respective unique wireless frequency channel; and

    upon receiving a command from the energy management system transmitted via its respective unique wireless frequency channel, process and respond to the received command.

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