Rotational position detecting apparatus

Details Rotational position detecting apparatus Rotational position detecting apparatus

1979-06-26

1981-04-21

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

123416, G01M 1500

Patent

active

042625262

ABSTRACT:
This invention discloses a rotational position detecting apparatus for an internal combustion engine for detecting the rotational position of a crank shaft of the engine. The apparatus comprises a rotating disk driven by the engine and giving a large number of angular information signals and also a rotating disk having one reference information on the periphery thereof, an angle sensor for detecting the angular informations on the disk, a rotational reference sensor for detecting the reference information on the disk, waveform reshaping circuits for reshaping the output signals of said both sensors, and an electric circuit for determining the angular position and the reference position from the outputs of said waveform reshaping circuits, wherein a logical product of the reshaped output of the angle sensor and the reshaped output of the reference sensor is implemented, and the time of either one of the rise or fall of an output signal of the logical product is set to be an angular position, while the other one is set to be a reference position.

REFERENCES:
patent: 3625054 (1971-12-01), Vesper et al.
patent: 4018202 (1977-04-01), Gartner
patent: 4079709 (1978-03-01), Schuette
patent: 4162666 (1979-07-01), Maioglio

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