Engine horsepower measurement system

Details Engine horsepower measurement system Engine horsepower measurement system

1978-01-17

1979-06-12

Myracle, Jerry W.

Measuring and testing

Brake testing

Single wheel rotating and resistance measuring means

G01M 1500

Patent

active

041576586

ABSTRACT:
An apparatus for producing an indication of the horsepower produced by a motor, engine or the like in which a load beam mounted on the motor produces a signal which is applied to a torque circuit which includes an A/D converter operating as a dual slope integrating A/D converter to produce a window pulse having a width which varies as a function of detected torque. A tachometer circuit produces a pulse train having a frequency indicating the speed of the motor in revolutions per unit time. The pulses from the tachometer are counted in a horsepower circuit during the window pulse from the torque circuit. Reset and store signals are applied to the counter by a flip-flop responsive to a variable frequency clock and the window pulse. The variable frequency clock drives the A/D converter and can be varied to set the constant K. Seven segment LED displays show the torque, speed and horsepower.

REFERENCES:
patent: 3525861 (1970-08-01), Alexander
patent: 3686941 (1972-08-01), Kramasz, Jr. et al.
patent: 3978718 (1976-09-01), Schorsch

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