METHOD FOR DETERMINING INFORMATION REPRESENTATIVE OF THE POSITION OF A REAL TOOTH ON A TOOTHED TARGET RIGIDLY ATTACHED IN ROTATION TO A SHAFT OF AN INTERNAL COMBUSTION ENGINE AND ASSOCIATED DEVICE
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Jul 23, 2012
filing date -
Jul 28, 2011
priority date (Note) -
Abandoned
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Abstract
A method an device for determining information representative of the position of a real tooth of a toothed target rigidly attached in rotation to a shaft of an internal combustion engine, the toothed target including n real teeth and m missing teeth forming a reference area and the engine being equipped with a sensor for detecting the passage of the real teeth of the toothed target in front of the sensor and with a unit capable of measuring, for each tooth k, the period of time, called period (T(k)) of the tooth k, separating the tooth k from the preceding tooth k−1. For the tooth k, the following ratio is calculated:
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