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APPARATUS FOR CORRECTING OUTPUT OF CYLINDER INTERNAL PRESSURE SENSOR, AND CYLINDER INTERNAL PRESSURE DETECTION APPARATUS INCLUDING THE SAME
APPARATUS FOR CORRECTING OUTPUT OF CYLINDER INTERNAL PRESSURE SENSOR, AND CYLINDER INTERNAL PRESSURE DETECTION APPARATUS INCLUDING THE SAME
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机译:用于校正气缸内部压力传感器的输出的设备以及包括该气缸内部压力检测器的气缸内部压力检测设备
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摘要
An output correction apparatus that corrects offset drift of a cylinder internal pressure sensor, and a cylinder internal pressure detection apparatus that accurately detects cylinder internal pressure of an internal combustion engine through use of the output correction apparatus. The cylinder internal pressure detection apparatus includes a detection circuit section which detects a change in the resistance of a piezoresistor element as an electrical signal; an amplification circuit section which amplifies and outputs the electrical signal (output value); and a correction circuit section which corrects the output value. The correction circuit section includes a reset control section which resets the output value of the amplification circuit section to a reference value, and a reset timing detection section which determines a timing of the resetting.
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