Method for assessing the operatability of a sensor for detecting soot

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United States of America

PATENT NO 11933751
SERIAL NO

17292369

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Abstract

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A method for evaluating the functionality of a ceramic sensor for detecting soot, the sensor including two measurement electrodes exposable to an exhaust and spaced apart from one another, and an electrical resistance heating element. The method includes: activating the resistance heating element to heat up the sensor and to burn soot off the two measurement electrodes; then deactivating the resistance heating element; then waiting for a first predetermined time period and/or waiting until a signal that is received from the sensor and represents the sensor temperature reaches a first predefined value; then measuring a first variable representing the electrical resistance between the measurement electrodes; then evaluating the functionality of the sensor based on the first variable representing the electrical resistance between the measurement electrodes.

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Patent Owner(s)

  • 502 ROBERT BOSCH GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Herweg, Karola Stuttgart, DE 3 17
Klenk, Mathias Loechgau, DE 12 65
Schilling, Carolin Maria Bad Schoenborn, DE 3 2

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