A new force detector has been developed to control an advanced lean combustion engine. The principle of the detector is a special type of the piezoresistive effect of silicon single crystal. A piezoresistive effect analysis system, called PREAPS, has been developed. It enables us to consider stress distribution and three-dimensional anisotropic conductivity. The detector of the silicon crystal achieves the toughness against large stress and high accuracy at high temperature. The detector is used as a key part of a combustion pressure sensor. The combustion pressure is measured by the sensor in an engine cylinder and the fuel consumption and No(x) emission of the engine is reduced.
New piezoresistive force detector for automotive use
Neuer piezoresistiver Kraftsensor für den Einsatz in Kraftfahrzeugen
1994
6 Seiten, 8 Bilder, 18 Quellen
Aufsatz (Konferenz)
Englisch
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