Camshaft or crankshaft sensor for automotive vehicle and diagnostic method for such a sensor
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United States of America Patent
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Sep 7, 2021
Grant Date -
Nov 9, 2017
app pub date -
Nov 26, 2015
filing date -
Nov 28, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a camshaft or crankshaft sensor including a toothed target, a measuring cell adapted to supply a raw signal and a processor module having two modes of operation: 1) a measurement mode in which the processor module is adapted to supply an output port of the sensor a measurement signal representing the times of passage of the teeth of the target at the level of the measuring cell; and 2) a diagnostic mode in which the processor module is adapted to supply at the output port of the sensor a diagnostic signal different from the measurement signal and representing the amplitude of the raw signal. Also disclosed is a method and a module for diagnosing such a sensor.
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