Law Offices of David G. Posz
Sensor failure or abnormality detecting system incorporated in a physical or dynamic quantity detecting apparatus
A reference voltage generating circuit is constituted by resistors RE and RF each having a resistance not influenced by an application of pressure. The reference voltage generating circuit is connected between one and the other ends of a bridge circuit. A failure judgement of the bridge circuit is performed based on a comparison of a voltage difference VBC between two midpoints B and C of the bridge circuit and voltage differences VCE and VBE between a reference voltage level of the reference voltage generating circuit and the voltage levels of two midpoints B and C.
Denso Corporation
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G01L G01L G01R G01L G01D
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Hiroaki Yoshifumi Yasutoshi Nobukazu Seiichiro Yukihiko Inao
Tanaka Murakami Suzuki Oba Ishio Tanizawa Toyoda