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INTEGRATED BATTERY SENSOR FOR MULTIPLE BATTERY MODULES

  • US 20150293180A1
  • Filed: 04/02/2015
  • Published: 10/15/2015
  • Est. Priority Date: 04/11/2014
  • Status: Active Grant
First Claim
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1. An automotive battery system, comprising:

  • a lead acid battery module configured to couple to an electrical system;

    a lithium ion battery module coupled in parallel with the lead acid battery module;

    a first terminal of the lithium ion battery corresponding to a positive voltage;

    a second terminal and a third terminal of the lithium ion battery corresponding to a first negative voltage;

    a resistor coupled to the second terminal and the third terminal, wherein the second terminal is coupled to a fourth terminal of the lead acid battery module, and wherein the fourth terminal corresponds to a second negative voltage; and

    a control system disposed within the lithium ion battery module, wherein the control system is configured to receive a voltage signal associated with the resistor, and wherein the voltage signal is associated with a voltage of the lead acid battery module.

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