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Electrical Testing System And Method

  • US 20170299465A1
  • Filed: 10/30/2015
  • Published: 10/19/2017
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. A method for measuring and determining cranking RPM of a vehicle, the method comprising the steps of:

  • measuring voltage of a portion of an electrical system of the vehicle during at least a portion of a starting cycle; and

    in one or more computing devices,determining a first extreme voltage point of the portion of the electrical system after the starting cycle has begun to designate a first reference time,determining a second extreme voltage point of the portion of the electrical system after the first reference time to create a second reference time,determining an amount of time between the first and second reference times,determining a number of compression strokes per minute based on the amount of time between the first and second reference times, anddetermining the cranking RPM of the vehicle based on the number of compression strokes per minute and number of cylinders in the vehicle.

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