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Systems and methods for supplying power in a hybrid vehicle using capacitors, a battery and one or more DC/DC converters

  • US 10,876,510 B2
  • Filed: 02/16/2017
  • Issued: 12/29/2020
  • Est. Priority Date: 03/02/2016
  • Status: Active Grant
First Claim
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1. A system for controlling connections between a battery of a hybrid vehicle and at least one of a capacitor of the vehicle and electrical loads of the vehicle, the electrical loads including essential loads and nonessential loads, the system comprising:

  • a battery monitoring circuit configured to determine a state of charge of the battery; and

    a battery protection circuit configured to;

    monitor the state of charge of the battery when the vehicle is off; and

    disconnect the nonessential loads from the battery while maintaining a connection between the essential loads and the battery when the state of charge of the battery is less than a first state of charge threshold, wherein the battery protection circuit is configured to reconnect the nonessential loads to the battery when an engine start is likely to occur within a first predetermined period.

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