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Apparatus and method for starter RPM detection

  • US 7,640,795 B2
  • Filed: 12/20/2002
  • Issued: 01/05/2010
  • Est. Priority Date: 12/20/2002
  • Status: Active Grant
First Claim
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1. A tester for vehicle engine starter motors, comprising:

  • a mechanical clamping apparatus to restrain a motor under test from rotating during startup and slowdown;

    an electrical circuit to apply power to the starter motor;

    a data storage capability allowing entered data characterizing a plurality of starter motor types to be retained within said starter tester;

    a data selection device allowing a single starter motor type to be selected from entered data;

    a detector circuit to sense the rate at which the starter motor spins and comparing with a standard spin rate of a motor of the same type; and

    a display to report the detected spin rate and the comparison with the standard spin rate.

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