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Method for checking the proper method of operating of a current sensor

  • US 9,372,224 B2
  • Filed: 08/19/2011
  • Issued: 06/21/2016
  • Est. Priority Date: 09/23/2010
  • Status: Active Grant
First Claim
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1. A method for checking a proper operation of a current sensor that is configured to measure a battery current, comprising:

  • pre-charging at least one electrical component by way of a pre-charge current during a pre-charge phase that commences at a point in time at which the at least one electrical component is connected to a battery;

    measuring a first current value at a first point in time using the current sensor;

    comparing the first current value with an expected current value at the first point in time that is determined from an expected progression with respect to time of the pre-charge current; and

    determining that the current sensor is operating properly in response to the first current value being within a predetermined range of the expected current value at the first point in time.

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