Rotational position detector for controlling an internal combust

Details Rotational position detector for controlling an internal combust Rotational position detector for controlling an internal combust

1988-06-02

1990-06-05

Gruber, Felix D.

Boots, shoes, and leggings

364559, 36443104, 123414, 73116, G01M 1500, F02P 5145, G06F 1520

Patent

active

049319400

ABSTRACT:
A rotational position detector for controlling an internal combustion engine comprises a rotary body rotatable in synchronism with internal combustion engine operation. A plurality of detectable portions is disposed on the rotary body. A pulse generator is operatively positioned adjacent to the rotary body for generating a pulse each time one of the detectable portions on the rotary body passes the pulse generator. A measuring device measures time intervals between respective pulses. An increase/decrease discriminator is provided to compare previous and current values of the output of the measuring device to check for an increase or decrease therein. A memory stores the output of the increase/decrease discriminator for a predetermined period in an increase/decrease pattern. A comparator compares the increase/decrease pattern with a predetermined increase/decrease pattern and develops an output for controlling the operation of the internal combustion engine.

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