JP2017020406A5 - - Google Patents
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- JP2017020406A5 JP2017020406A5 JP2015138202A JP2015138202A JP2017020406A5 JP 2017020406 A5 JP2017020406 A5 JP 2017020406A5 JP 2015138202 A JP2015138202 A JP 2015138202A JP 2015138202 A JP2015138202 A JP 2015138202A JP 2017020406 A5 JP2017020406 A5 JP 2017020406A5
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- intake air
- combustion engine
- air temperature
- measuring means
- 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.)
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- 238000002485 combustion reaction Methods 0.000 claims 14
- 238000003745 diagnosis Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
Claims (5)
前記制御機能部には、吸気管内に設けられた吸気湿度測定手段と吸気温度測定手段からの情報が入力され、
前記制御機能部は、前記内燃機関が駆動されている状態で、前記吸気湿度測定手段からの相対湿度情報と前記吸気温度測定手段からの吸気温度情報の相関関係に基づき、吸気温度が上昇したときに前記相対湿度が上昇した場合、或いは前記吸気温度が低下したときに前記相対湿度が低下した場合には前記吸気湿度測定手段が故障していると判定する診断機能を備えていることを特徴とする内燃機関用制御装置。 And it has a function of calculating at least one or more of the control target value of the internal combustion engine, an internal combustion having a control function unit having a function of correcting the magnitude of the relative humidity at least one of the control target value of the control target value In the engine control device,
Information from the intake air humidity measuring means and the intake air temperature measuring means provided in the intake pipe is input to the control function unit,
The control function unit, in a state where the internal combustion engine is driven,-out based on the correlation between the intake air temperature information from the relative humidity information and the intake air temperature measuring means from the intake humidity measuring means, intake air temperature When the relative humidity rises when it rises, or when the relative humidity falls when the intake air temperature falls, it has a diagnostic function to determine that the intake humidity measurement means has failed A control device for an internal combustion engine.
前記診断機能は、
前記吸気温度が上昇した時の前記吸気温度の変化量が所定値以上で、かつ前記相対湿度の変化量が所定値以上の場合、或いは前記吸気温度が低下した時の前記吸気温度の変化量が所定値以上で、かつ前記相対湿度の変化量が所定値以上の場合に前記吸気湿度測定手段が故障していると判定することを特徴とする内燃機関用制御装置。 The control device for an internal combustion engine according to claim 1,
The diagnostic function is:
The amount of change in the intake air temperature when the amount of change in the intake air temperature when the intake air temperature rises is greater than or equal to a predetermined value and the amount of change in the relative humidity is greater than or equal to a predetermined value, or when the intake air temperature decreases. A control apparatus for an internal combustion engine, wherein when the amount of change in the relative humidity is equal to or greater than a predetermined value, the intake humidity measuring means is determined to be malfunctioning.
前記制御機能部には、吸気管内に設けられた吸気湿度測定手段と吸気温度測定手段からの情報が入力され、
前記制御機能部は、前記内燃機関が駆動されている状態で、前記吸気湿度測定手段からの相対湿度情報が所定の上限値、或いは所定の下限値、或いは所定の上下限値に張り付いた場合に前記吸気湿度測定手段が故障していると判定する診断機能を備えていることを特徴とする内燃機関用制御装置。 And it has a function of calculating at least one or more of the control target value of the internal combustion engine, an internal combustion having a control function unit having a function of correcting the magnitude of the relative humidity at least one of the control target value of the control target value In the engine control device,
Information from the intake air humidity measuring means and the intake air temperature measuring means provided in the intake pipe is input to the control function unit,
The control function unit, when the relative humidity information from the intake humidity measuring means sticks to a predetermined upper limit value, a predetermined lower limit value, or a predetermined upper and lower limit value while the internal combustion engine is driven A control device for an internal combustion engine, further comprising a diagnostic function for determining that the intake humidity measuring means is malfunctioning.
前記制御機能部は、前記吸気湿度測定手段からの相対湿度情報と前記吸気温度測定手段からの吸気温度情報をデジタルフィルタリング処理を行って求めることを特徴とする内燃機関用制御装置。 In the control device for an internal combustion engine according to claim 1 or 3,
The control device for an internal combustion engine, wherein the control function unit obtains the relative humidity information from the intake humidity measuring means and the intake air temperature information from the intake air temperature measuring means by performing a digital filtering process.
前記診断機能は、故障と判定する回数を計数し、所定の回数に達すると故障を確定することを特徴とする内燃機関用制御装置。 In the control device for an internal combustion engine according to claim 1 or 3,
The internal combustion engine control apparatus according to claim 1, wherein the diagnosis function counts the number of times that the failure is determined and determines the failure when the predetermined number of times is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015138202A JP2017020406A (en) | 2015-07-10 | 2015-07-10 | Control device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015138202A JP2017020406A (en) | 2015-07-10 | 2015-07-10 | Control device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017020406A JP2017020406A (en) | 2017-01-26 |
| JP2017020406A5 true JP2017020406A5 (en) | 2017-10-26 |
Family
ID=57887703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015138202A Pending JP2017020406A (en) | 2015-07-10 | 2015-07-10 | Control device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2017020406A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6421763B2 (en) * | 2016-01-13 | 2018-11-14 | トヨタ自動車株式会社 | Abnormality detection device for humidity sensor |
| KR101806372B1 (en) | 2016-12-09 | 2018-01-10 | 현대오트론 주식회사 | Diagnosis Method of the Relative Humidity Sensor for Vehicle |
| EP3404237B1 (en) * | 2017-05-15 | 2021-01-27 | Winterthur Gas & Diesel AG | Large diesel engine and method for operating a large diesel engine |
| JP6841162B2 (en) * | 2017-05-25 | 2021-03-10 | 株式会社デンソー | Electronic control device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0782058B2 (en) * | 1986-06-23 | 1995-09-06 | 富士通テン株式会社 | Sensor system abnormality detection device |
| JPS6441753A (en) * | 1987-08-07 | 1989-02-14 | Sanyo Electric Co | Air conditioner of basement for living |
| JP3495470B2 (en) * | 1995-09-01 | 2004-02-09 | 三菱電機株式会社 | Internal combustion engine control device |
| JP4366781B2 (en) * | 1999-09-30 | 2009-11-18 | 株式会社デンソー | Air conditioner for vehicles |
| JP2001227790A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Device for diagnosing fault of sensor of air conditioner |
| JP4186630B2 (en) * | 2003-01-24 | 2008-11-26 | 日新電機株式会社 | Isolation detection method |
| US9163588B2 (en) * | 2011-03-10 | 2015-10-20 | Ford Global Technologies, Llc | Method and system for humidity sensor diagnostics |
| JP6141746B2 (en) * | 2013-10-16 | 2017-06-07 | 日立オートモティブシステムズ株式会社 | Control device for internal combustion engine |
| JP6060887B2 (en) * | 2013-12-12 | 2017-01-18 | 株式会社デンソー | Physical quantity sensor |
-
2015
- 2015-07-10 JP JP2015138202A patent/JP2017020406A/en active Pending
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