Speedometer/odometer/cruise control tester and related methods

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...

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Details

324503, 340653, G01R 3102

Patent

active

050404075

ABSTRACT:
An electronic motor control system is taught herein which utilizes a speedometer testing circuit. The (electronic) speedometer/odometer of a vehicle is tested, with the testing device being interconnected with the (input) terminals of the speedometer, exclusive of whether the speedometer is installed or removed from the vehicle. The testing device is utilized without vehicle input to the speedometer in order to determine whether the speedometer can produce an expected signal upon testing thus determining whether the speedometer is functional or not. The testing circuit has a self-contained power supply, is compact in size, and lightweight, thereby insuring complete mobility of the testing unit and dual application of the circuit to both installed and disengaged speedometer and odometer mechanisms. Use of the novel invention and related methods described herein eliminates the former dangerous necessity with prior art of having to test the speedometer which the rear tires of the vehicle are in motion, thus greatly improving the safety of the such testing procedures.

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