Richard Andre Radu, Age 763877 E Long Lake Rd, Traverse City, MI 49685

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Traverse City, MI

4036 Pine Ridge Ct, Fenton, MI 48430

Auburn Hills, MI

Richmond, KY

Grand Blanc, MI

Lexington, KY

Clarkston, MI

1057 Merrick Dr #2, Richmond, KY 40475

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Position: Professional/Technical

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Degree: Graduate or professional degree

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Us Patents

02 Sensor Filter

US Patent:
2003002, Feb 6, 2003
Filed:
Aug 1, 2001
Appl. No.:
09/920055
Inventors:
Richard Radu - Grand Blanc MI, US
Robert Nankee - Canton MI, US
William Eichbrecht - Livonia MI, US
Leon Cribbins - Farmington MI, US
Joseph Kopera - Trenton MI, US
George Mitchell - Brighton MI, US
International Classification:
G01N027/00
US Classification:
073/001060
Abstract:
A method of filtering an oxygen sensor signal is provided. The method includes obtaining the oxygen sensor signal from the oxygen sensor on a periodic basis. The oxygen sensor signal is then compared to an average oxygen sensor signal value. If the oxygen sensor signal is greater than the average oxygen sensor signal value, a high signal counter is incremented. If the high signal counter is greater than a high signal count threshold, the oxygen sensor signal is forced to a high signal value. If the oxygen sensor signal is less than the average oxygen sensor signal value, a low signal counter is incremented. If the low signal counter is greater than a low signal count threshold, the oxygen sensor signal is forced to the low signal value. The high and low signal count thresholds correspond to a preselected period of time indicating a low or high signal trend within the oxygen sensor signal.

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