JPS55136905A - Method of correcting aged change of exhaust gas sensor - Google Patents

Method of correcting aged change of exhaust gas sensor

Info

Publication number
JPS55136905A
JPS55136905A JP4435379A JP4435379A JPS55136905A JP S55136905 A JPS55136905 A JP S55136905A JP 4435379 A JP4435379 A JP 4435379A JP 4435379 A JP4435379 A JP 4435379A JP S55136905 A JPS55136905 A JP S55136905A
Authority
JP
Japan
Prior art keywords
sensor
exhaust gas
integrated value
gas sensor
aged change
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4435379A
Other languages
Japanese (ja)
Inventor
Yasunori Mori
Seiji Suda
Taiji Hasegawa
Masami Shida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4435379A priority Critical patent/JPS55136905A/en
Publication of JPS55136905A publication Critical patent/JPS55136905A/en
Pending legal-status Critical Current

Links

Landscapes

  • Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To maintain always constant detecting function by picking up an engine driving age information to detect the engine driving time, accumulating the time and correcting the aged change of the slice level of an exhaust gas sensor on the basis of the information.
CONSTITUTION: The data of the slice level of an exhaust gas sensor corresponding to the integration of the engine driving age information from a table stored in a ROM is retrieved in a step 162. This slice level is stored in a RAM in a step 164. The integrated value is compared with the exchange time of the sensor in a step 166 to finish a task when the integrated value is judged not to reach the exchange time of the sensor. When the integrated value is judged to reach the exchange time of the sensor in a step 166, an alarm output is produced in a step 168. When the sensor is exchanged and reset-on is detected in a step 170, the integrated value of the aged change of the previous sensor is set to zero in a step 174 to complete a task, and new integration will start. As a result, the aged change is corrected.
COPYRIGHT: (C)1980,JPO&Japio
JP4435379A 1979-04-13 1979-04-13 Method of correcting aged change of exhaust gas sensor Pending JPS55136905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4435379A JPS55136905A (en) 1979-04-13 1979-04-13 Method of correcting aged change of exhaust gas sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4435379A JPS55136905A (en) 1979-04-13 1979-04-13 Method of correcting aged change of exhaust gas sensor

Publications (1)

Publication Number Publication Date
JPS55136905A true JPS55136905A (en) 1980-10-25

Family

ID=12689141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4435379A Pending JPS55136905A (en) 1979-04-13 1979-04-13 Method of correcting aged change of exhaust gas sensor

Country Status (1)

Country Link
JP (1) JPS55136905A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148953A (en) * 1982-03-02 1983-09-05 Chugai Ro Kogyo Kaisha Ltd Controller for indication of oxygen concentration
JPH01161142A (en) * 1987-12-17 1989-06-23 Saginomiya Seisakusho Inc Physical quantity detecting device
US20090282808A1 (en) * 2006-04-26 2009-11-19 Andrews Eric B Method and system for improving sensor accuracy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148953A (en) * 1982-03-02 1983-09-05 Chugai Ro Kogyo Kaisha Ltd Controller for indication of oxygen concentration
JPH01161142A (en) * 1987-12-17 1989-06-23 Saginomiya Seisakusho Inc Physical quantity detecting device
US20090282808A1 (en) * 2006-04-26 2009-11-19 Andrews Eric B Method and system for improving sensor accuracy
US8474242B2 (en) * 2006-04-26 2013-07-02 Cummins Inc. Method and system for improving sensor accuracy

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