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Battery sensor data transmission unit and a method for transmitting battery sensor data

  • US 9,720,048 B2
  • Filed: 01/24/2013
  • Issued: 08/01/2017
  • Est. Priority Date: 02/23/2012
  • Status: Active Grant
First Claim
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1. A battery sensor data transmission unit for a battery cell of a battery unit, the battery unit having multiple battery cells connected in series, comprising:

  • a connection state ascertainment unit for the battery cell, and configured for;

    ascertaining a series connection state in which the battery cell is connected in series to another battery cell with the aid of a power supply line, anddetermining a bypassing state in which at least one pole of the battery cell is decoupled from at least the other battery cell; and

    a data transmission unit for the battery cell, and configured for;

    outputting, if the battery cell is in the series connection state, a sensor signal that represents a physical variable one of in and at the battery cell in the series connection state to an evaluation device of the battery unit with the power supply line, andoutputting, if the battery cell is in the bypassing state, the sensor signal in the bypassing state to the evaluation device with a battery housing wall as a transmission medium;

    wherein the data transmission unit is coupled to the connection state ascertainment unit.

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