JP2022010836A - 噴射制御装置 - Google Patents
噴射制御装置 Download PDFInfo
- Publication number
- JP2022010836A JP2022010836A JP2020111596A JP2020111596A JP2022010836A JP 2022010836 A JP2022010836 A JP 2022010836A JP 2020111596 A JP2020111596 A JP 2020111596A JP 2020111596 A JP2020111596 A JP 2020111596A JP 2022010836 A JP2022010836 A JP 2022010836A
- Authority
- JP
- Japan
- Prior art keywords
- correction amount
- energization
- time correction
- energization time
- drive control
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 title claims abstract description 99
- 239000007924 injection Substances 0.000 title claims abstract description 99
- 238000012937 correction Methods 0.000 claims abstract description 149
- 239000000446 fuel Substances 0.000 claims abstract description 73
- 238000004364 calculation method Methods 0.000 claims abstract description 51
- 230000005856 abnormality Effects 0.000 claims abstract description 39
- 239000000243 solution Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 29
- 230000008569 process Effects 0.000 description 25
- 238000003745 diagnosis Methods 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2034—Control of the current gradient
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2048—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit said control involving a limitation, e.g. applying current or voltage limits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
なおマイコン4は、クランク角センサのパルス信号により算出されるエンジン回転数に基づいて、各気筒に対する噴射開始時間を算出できる。
図6に示すマップ14のデータは、エンジン負荷率が高い場合には分割回数Nを小さく設定し、エンジン負荷率が低くなると分割回数を大きく設定する。
ΔTn(k)=ΔTn(k-1)-ΔTN …(5)
また、通電指示時間補正量ΔTiを減じるタイミングは、所定回数あるいは所定周期を単位として実施するようにしても良い。
本発明は、前述した実施形態に限定されるものではなく、種々変形して実施することができ、その要旨を逸脱しない範囲で種々の実施形態に適用可能である。例えば以下に示す変形又は拡張が可能である。前述した複数の実施形態を必要に応じて組み合わせて構成しても良い。
Claims (5)
- エンジンへの燃料噴射を行う燃料噴射弁を電流駆動する噴射制御装置であって、
前記燃料噴射弁を電流駆動して燃料を噴射させる際に、前記燃料噴射弁に流れる電流の面積補正を実施して通電時間補正量(ΔTi)を算出する通電時間補正量算出部(5d)を備え、通電指示時間を補正して通電制御する駆動制御部(5)と、
前記駆動制御部により算出された前記通電時間補正量が予め設定された上限値を超えるときに前記駆動制御部の制御系統の異常判定をする異常判定部(12)と、
前記異常判定部が前記駆動制御部の制御系統の異常判定をしたときに、前記通電時間補正量算出部による前記通電時間補正量の算出を停止させ、前記駆動制御部に前記異常判定時の前記通電時間補正量を直接もしくは段階的に減じるように設定する補正量減算設定部(11)と
を備えた噴射制御装置。 - 前記エンジンの負荷率を検出するセンサ(8)を備え、
前記補正量減算設定部は、前記センサにより検出された前記エンジンの負荷率が高いほど減じる段階数を多く設定する請求項1に記載の噴射制御装置。 - 前記補正量減算設定部は、前記駆動制御部に前記異常判定時の前記通電時間補正量を前記上限値からゼロになるまで減じるように設定する請求項1または2に記載の噴射制御装置。
- 前記補正量減算設定部は、前記駆動制御部に前記異常判定時の前記通電時間補正量を前記上限値から回数を設定して段階的に減じるように設定する請求項1から3のいずれか一項に記載の噴射制御装置。
- 前記補正量減算設定部は、前記駆動制御部に前記異常判定時の前記通電時間補正量を前記上限値から所定周期毎に段階的に減じるように設定する請求項1から4のいずれか一項に記載の噴射制御装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111596A JP7367625B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
US17/357,329 US11313308B2 (en) | 2020-06-29 | 2021-06-24 | Injection control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020111596A JP7367625B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022010836A true JP2022010836A (ja) | 2022-01-17 |
JP7367625B2 JP7367625B2 (ja) | 2023-10-24 |
Family
ID=79031587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020111596A Active JP7367625B2 (ja) | 2020-06-29 | 2020-06-29 | 噴射制御装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US11313308B2 (ja) |
JP (1) | JP7367625B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7318594B2 (ja) * | 2020-06-29 | 2023-08-01 | 株式会社デンソー | 噴射制御装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000104610A (ja) * | 1998-09-29 | 2000-04-11 | Denso Corp | 内燃機関の燃料噴射制御装置 |
JP2002188501A (ja) * | 2000-12-15 | 2002-07-05 | Toyota Motor Corp | 内燃機関の燃料供給系異常検出装置 |
WO2004053317A1 (ja) * | 2002-12-10 | 2004-06-24 | Mikuni Corporation | 燃料噴射制御方法及び燃料噴射制御装置 |
JP2010223008A (ja) * | 2009-03-19 | 2010-10-07 | Denso Corp | 内燃機関の自動停止始動制御装置 |
JP2011127474A (ja) * | 2009-12-16 | 2011-06-30 | Hitachi Automotive Systems Ltd | 内燃機関の診断装置 |
JP2012031735A (ja) * | 2010-07-28 | 2012-02-16 | Toyota Motor Corp | 多気筒内燃機関の制御装置 |
WO2019207903A1 (ja) * | 2018-04-27 | 2019-10-31 | 日立オートモティブシステムズ株式会社 | 燃料噴射制御装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379332A (en) * | 1978-09-25 | 1983-04-05 | The Bendix Corporation | Electronic fuel injection control system for an internal combustion engine |
JPS5612027A (en) * | 1979-07-10 | 1981-02-05 | Nippon Denso Co Ltd | Electric controller for injection pump |
US5050562A (en) * | 1988-01-13 | 1991-09-24 | Hitachi, Ltd. | Apparatus and method for controlling a car |
JP4089244B2 (ja) * | 2002-03-01 | 2008-05-28 | 株式会社デンソー | 内燃機関用噴射量制御装置 |
JP3966096B2 (ja) * | 2002-06-20 | 2007-08-29 | 株式会社デンソー | 内燃機関用噴射量制御装置 |
JP4840288B2 (ja) * | 2006-11-14 | 2011-12-21 | 株式会社デンソー | 燃料噴射装置及びその調整方法 |
JP2008190388A (ja) * | 2007-02-02 | 2008-08-21 | Denso Corp | 電磁弁駆動装置及び燃料噴射制御装置 |
JP4483908B2 (ja) * | 2007-08-23 | 2010-06-16 | 株式会社デンソー | 燃料噴射制御装置 |
JP4656198B2 (ja) * | 2008-07-15 | 2011-03-23 | 株式会社デンソー | 燃料噴射制御装置 |
JP5807948B2 (ja) * | 2011-03-17 | 2015-11-10 | ボッシュ株式会社 | コモンレール式燃料噴射制御装置における燃料噴射量補正方法及びコモンレール式燃料噴射制御装置 |
JP6221828B2 (ja) * | 2013-08-02 | 2017-11-01 | 株式会社デンソー | 高圧ポンプの制御装置 |
JP6292070B2 (ja) | 2014-07-31 | 2018-03-14 | 株式会社デンソー | 燃料噴射制御装置 |
JP6973010B2 (ja) * | 2017-12-13 | 2021-11-24 | トヨタ自動車株式会社 | 燃料ポンプの制御装置 |
JP7172753B2 (ja) * | 2019-03-07 | 2022-11-16 | 株式会社デンソー | 噴射制御装置 |
JP7367614B2 (ja) * | 2020-05-28 | 2023-10-24 | 株式会社デンソー | 噴射制御装置 |
JP7322816B2 (ja) * | 2020-05-28 | 2023-08-08 | 株式会社デンソー | 噴射制御装置 |
JP7380425B2 (ja) * | 2020-05-28 | 2023-11-15 | 株式会社デンソー | 噴射制御装置 |
JP7415821B2 (ja) * | 2020-06-29 | 2024-01-17 | 株式会社デンソー | 噴射制御装置 |
JP7298555B2 (ja) * | 2020-06-29 | 2023-06-27 | 株式会社デンソー | 噴射制御装置 |
-
2020
- 2020-06-29 JP JP2020111596A patent/JP7367625B2/ja active Active
-
2021
- 2021-06-24 US US17/357,329 patent/US11313308B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000104610A (ja) * | 1998-09-29 | 2000-04-11 | Denso Corp | 内燃機関の燃料噴射制御装置 |
JP2002188501A (ja) * | 2000-12-15 | 2002-07-05 | Toyota Motor Corp | 内燃機関の燃料供給系異常検出装置 |
WO2004053317A1 (ja) * | 2002-12-10 | 2004-06-24 | Mikuni Corporation | 燃料噴射制御方法及び燃料噴射制御装置 |
JP2010223008A (ja) * | 2009-03-19 | 2010-10-07 | Denso Corp | 内燃機関の自動停止始動制御装置 |
JP2011127474A (ja) * | 2009-12-16 | 2011-06-30 | Hitachi Automotive Systems Ltd | 内燃機関の診断装置 |
JP2012031735A (ja) * | 2010-07-28 | 2012-02-16 | Toyota Motor Corp | 多気筒内燃機関の制御装置 |
WO2019207903A1 (ja) * | 2018-04-27 | 2019-10-31 | 日立オートモティブシステムズ株式会社 | 燃料噴射制御装置 |
Also Published As
Publication number | Publication date |
---|---|
JP7367625B2 (ja) | 2023-10-24 |
US20210404408A1 (en) | 2021-12-30 |
US11313308B2 (en) | 2022-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7380425B2 (ja) | 噴射制御装置 | |
JP7298555B2 (ja) | 噴射制御装置 | |
US11326538B2 (en) | Injection control device | |
JP7415821B2 (ja) | 噴射制御装置 | |
US11384704B2 (en) | Injection control device | |
US20210404407A1 (en) | Injection control device | |
JP2022010836A (ja) | 噴射制御装置 | |
US11306675B2 (en) | Injection control device | |
US20220034278A1 (en) | Injection control device | |
US11525418B2 (en) | Injection control device | |
JP7298554B2 (ja) | 噴射制御装置 | |
US11674467B2 (en) | Injection control device | |
US11255286B2 (en) | Injection control device | |
JP7306339B2 (ja) | 噴射制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221107 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230628 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230704 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230830 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230912 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230925 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 7367625 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |