WO2014184871A1 - 内燃機関の制御装置 - Google Patents
内燃機関の制御装置 Download PDFInfo
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- WO2014184871A1 WO2014184871A1 PCT/JP2013/063430 JP2013063430W WO2014184871A1 WO 2014184871 A1 WO2014184871 A1 WO 2014184871A1 JP 2013063430 W JP2013063430 W JP 2013063430W WO 2014184871 A1 WO2014184871 A1 WO 2014184871A1
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- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0055—Special engine operating conditions, e.g. for regeneration of exhaust gas treatment apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/02—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by hand, foot, or like operator controlled initiation means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
- F02D13/0223—Variable control of the intake valves only
- F02D13/0226—Variable control of the intake valves only changing valve lift or valve lift and timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
-
- 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
- F02D41/0002—Controlling intake air
-
- 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
- F02D41/0002—Controlling intake air
- F02D41/0005—Controlling intake air during deceleration
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- 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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
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- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1497—With detection of the mechanical response of the engine
-
- 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
- F02D41/3005—Details not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/045—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions combined with electronic control of other engine functions, e.g. fuel injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1521—Digital data processing dependent on pinking with particular means during a transient phase, e.g. starting, acceleration, deceleration, gear change
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D21/00—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas
- F02D21/06—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air
- F02D21/08—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine
- F02D2021/083—Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas peculiar to engines having other non-fuel gas added to combustion air the other gas being the exhaust gas of engine controlling exhaust gas recirculation electronically
-
- 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
- F02D41/0002—Controlling intake air
- F02D2041/001—Controlling intake air for engines with variable valve actuation
-
- 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
- F02D41/0002—Controlling intake air
- F02D2041/0017—Controlling intake air by simultaneous control of throttle and exhaust gas recirculation
-
- 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
- Y02T10/12—Improving ICE efficiencies
-
- 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
Definitions
- the arithmetic unit 206 calculates the gear ratio of the automatic transmission and transmits a signal for instructing the gear ratio to a transmission controller (not shown).
- the transmission controller is realized as one function of the ECU, like the powertrain manager 200 and the engine controller 100.
- a flag signal is input from the engine controller 100 to the arithmetic unit 206. In the figure, the flag signal is described as “FLG”.
- the flag signal is a signal indicating that the operation mode is being switched. While the flag signal is on, the arithmetic unit 206 fixes the gear ratio of the automatic transmission. That is, while the operation mode is being switched, the change of the gear ratio by the automatic transmission is prohibited so that the operation state of the engine does not change greatly.
- the engine controller 100 in FIG. 1 among the various functions provided in the engine controller 100, four types of actuators, that is, the throttle 2 and VVT 8 as the first actuator, the injector 4 as the second actuator,
- the functions related to the cooperative operation of the ignition device 6 that is the three actuators and the EGR valve 12 that is the fourth actuator are represented by blocks.
- An arithmetic unit is assigned to each of these blocks.
- Programs corresponding to the respective blocks are prepared in the ECU, and the functions of the respective arithmetic units are realized in the ECU by being executed by the processor.
- the arithmetic unit which comprises the engine controller 100 can be distributed and allocated to several cores.
- the required first torque, other first torque, target air-fuel ratio, virtual air-fuel ratio, switching target efficiency, other efficiency, required second torque, switching target second Torque and other second torque are output. These control parameters are input to the large arithmetic unit 140.
- the requested first torque and the requested second torque provided from the powertrain manager 200 are shaft torques, but the large arithmetic unit 120 corrects them to the indicated torque.
- the required torque is corrected to the indicated torque by adding or subtracting the friction torque, accessory driving torque, and pump loss to the required torque. Note that the torque such as the switching target second torque calculated within the large arithmetic unit 120 is calculated as the indicated torque.
- the arithmetic unit 174 calculates the fuel injection amount necessary for achieving the target air-fuel ratio, that is, the fuel supply amount, from the target air-fuel ratio and the estimated air amount.
- the calculation of the fuel injection amount is executed when the calculation timing of the fuel injection amount arrives in each cylinder. In the figure, the fuel injection amount is described as “TAU”.
- the fuel injection amount calculated by the arithmetic unit 174 is converted into a signal for driving the injector 4 and transmitted to the injector 4 via the interface 114 of the ECU.
- the arithmetic units 174 and 176 correspond to the second actuator control means in the present invention.
- the arithmetic unit 404 will be described.
- the requested first torque is input to the arithmetic unit 404.
- the reference value calculated by the arithmetic unit 402 is set for the arithmetic unit 404.
- the arithmetic unit 404 changes the value of the virtual air-fuel ratio used for calculating the target air amount based on the relationship between the input requested first torque and the reference value. More specifically, the arithmetic unit 404 switches the virtual air-fuel ratio from the first air-fuel ratio to the second air-fuel ratio or from the second air-fuel ratio to the first air-fuel ratio.
- the first air-fuel ratio is a theoretical air-fuel ratio (for example, 14.5). In the figure, the first air-fuel ratio is indicated as “AF1”.
- the fifth chart in FIG. 3 shows the time change of the ignition timing. As described above, “SA” is the ignition timing.
- the actual air amount and the estimated air amount that is the estimated value do not increase stepwise, but increase after the target air amount. I will do it.
- the actual air amount and the estimated air amount gradually converge to the target air amount, and the difference between the target air amount and the estimated air amount becomes less than the threshold value.
- the target air-fuel ratio is switched from the first air-fuel ratio to the second air-fuel ratio.
- the arithmetic unit 502 calculates the target EGR rate using the EGR rate map.
- the EGR rate map is a map in which the EGR rate is associated with the engine state quantity including the engine speed, the air amount, and the air-fuel ratio as keys. This map is determined by adaptation for each air amount, engine speed, and air-fuel ratio. The actual value or target value of the engine state quantity is used for searching the EGR rate map. As for the air-fuel ratio, the virtual air-fuel ratio is used for map search. Therefore, the arithmetic unit 502 calculates the EGR rate necessary for realizing the target EGR rate for EGR control under the virtual air-fuel ratio as the first target value of the EGR rate. In the figure, the first target value of the EGR rate is described as “EGRt1”. The arithmetic unit 502 corresponds to the first target value calculation means in the present invention.
- FIG. 6 is a time chart showing an image of a control result during deceleration by the ECU according to the present embodiment.
- the time chart of FIG. 6 is composed of a plurality of charts. The contents shown in this chart are the same as those of the time chart of FIG. 3 except for the time change of the EGR rate at the eighth stage.
- the eighth chart in FIG. 6 shows the time change of the EGR rate.
- EGRt is the target EGR rate
- EGRt1 is the first target value of the EGR rate
- EGRt2 is the second target value of the EGR rate.
- the actual EGR rate is represented by a solid line together with the target EGR rate. However, the actual EGR rate is not measured by actual engine control.
- the actual EGR rate line drawn on the chart is an image line supported by the test results.
Abstract
Description
。
以下、本発明の実施の形態1について図を参照して説明する。
次に、本発明の実施の形態2について図を参照して説明する。
次に、本発明の実施の形態3について図を参照して説明する。
本発明は上述の実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変形して実施することができる。例えば、以下のような変形例を採用してもよい。
4 インジェクタ
6 点火装置
8 可変バルブタイミング機構
10 ウエストゲートバルブ
12 EGRバルブ
100 エンジンコントローラ
105 要求トルク受信手段としてのインタフェース
200 パワートレインマネージャ
162;182 目標空気量算出手段としての演算ユニット
164、166;178 第1アクチュエータ制御手段としての演算ユニット
174、176 第2アクチュエータ制御手段としての演算ユニット
168、170、172 第3アクチュエータ制御手段としての演算ユニット
192、196 目標EGR率算出手段としての演算ユニット
194 第4アクチュエータ制御手段としての演算ユニット
404 パラメータ値変更手段としての演算ユニット
406 目標空燃比切替手段としての演算ユニット
Claims (8)
- 筒内に吸入される空気の量を変化させる第1アクチュエータと、筒内に燃料を供給する第2アクチュエータと、筒内の混合気に点火する第3アクチュエータと、EGR率を調整する第4アクチュエータとを有し、第1空燃比による運転と前記第1空燃比よりもリーンな第2空燃比による運転とを選択可能に構成された内燃機関の制御装置において、
要求トルクを受信する要求トルク受信手段と、
空燃比に対応するパラメータである仮想空燃比を用いて前記要求トルクを達成するための目標空気量を前記要求トルクから逆算する目標空気量算出手段と、
前記要求トルクの基準値以下への減少に応答して前記仮想空燃比を前記第1空燃比から前記第2空燃比へ切り替える仮想空燃比変更手段と、
前記仮想空燃比が前記第1空燃比から前記第2空燃比へ変更された後、目標空燃比を前記第1空燃比から前記第2空燃比へ切り替える目標空燃比切替手段と、
前記仮想空燃比を用いて目標EGR率を算出する目標EGR率算出手段と、
前記目標空気量に基づいて前記第1アクチュエータの操作量を決定し、前記操作量に従って前記第1アクチュエータを操作する第1アクチュエータ制御手段と、
前記目標空燃比に基づいて燃料供給量を決定し、前記燃料供給量に従って前記第2アクチュエータを操作する第2アクチュエータ制御手段と、
前記第1アクチュエータの操作量と前記目標空燃比とから推定されるトルクと前記要求トルクとに基づいて前記要求トルクを達成するための点火時期を決定し、前記点火時期に従って前記第3アクチュエータを操作する第3アクチュエータ制御手段と、
前記目標EGR率に基づいて前記第4アクチュエータの操作量を決定し、前記操作量に従って前記第4アクチュエータを操作する第4アクチュエータ制御手段と、
を備えることを特徴とする内燃機関の制御装置。 - 前記目標EGR率算出手段は、
前記仮想空燃比を用いてEGR率の第1目標値を算出する第1目標値算出手段と、
前記目標空燃比を用いてEGR率の第2目標値を算出する第2目標値算出手段と、
前記第1目標値と前記第2目標値とを比較してより小さい方を前記目標EGR率として選択する選択手段と、
を含むことを特徴とする請求項1記載の内燃機関の制御装置。 - 前記目標空燃比切替手段は、前記仮想空燃比が前記第1空燃比から前記第2空燃比へ変更された後、前記目標空気量と前記第1アクチュエータの操作量から推定される空気量との差が閾値以下になってから、前記目標空燃比を前記第1空燃比から前記第2空燃比へ切り替えることを特徴とする請求項1または2に記載の内燃機関の制御装置。
- 前記目標空燃比切替手段は、前記仮想空燃比が前記第1空燃比から前記第2空燃比へ変更された後、一定時間が経過してから、前記目標空燃比を前記第1空燃比から前記第2空燃比へ切り替えることを特徴とする請求項1乃至3の何れか1項に記載の内燃機関の制御装置。
- 前記第4アクチュエータはEGRバルブを含み、
前記第4アクチュエータ制御手段は、前記目標EGR率に基づいて目標EGRバルブ開度を決定し、前記目標EGRバルブ開度に従って前記EGRバルブを操作することを特徴とする請求項1乃至4の何れか1項に記載の内燃機関の制御装置。 - 前記第1アクチュエータはスロットルを含み、
前記第1アクチュエータ制御手段は、前記目標空気量から算出される目標吸気管圧に基づいて目標スロットル開度を決定し、前記目標スロットル開度に従って前記スロットルを操作することを特徴とする請求項1乃至5の何れか1項に記載の内燃機関の制御装置。 - 前記第1アクチュエータは吸気バルブのバルブタイミングを変化させる可変バルブタイミング機構を含み、
前記第1アクチュエータ制御手段は、前記目標空気量に基づいて目標バルブタイミングを決定し、前記目標バルブタイミングに従って前記可変バルブタイミング機構を操作することを特徴とする請求項1乃至6の何れか1項に記載の内燃機関の制御装置。 - 前記内燃機関は過給器を備えた過給エンジンであり、
前記第1アクチュエータは前記過給器の過給特性を変化させる過給特性可変アクチュエータを含み、
前記第1アクチュエータ制御手段は、前記目標空気量から算出される目標過給圧に基づいて前記過給特性可変アクチュエータの操作量を決定し、前記操作量に従って前記過給特性可変アクチュエータを操作することを特徴とする請求項1乃至7の何れか1項に記載の内燃機関の制御装置。
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PCT/JP2013/063430 WO2014184871A1 (ja) | 2013-05-14 | 2013-05-14 | 内燃機関の制御装置 |
CN201380076620.7A CN105229287B (zh) | 2013-05-14 | 2013-05-14 | 内燃机的控制装置 |
JP2015516794A JP6041049B2 (ja) | 2013-05-14 | 2013-05-14 | 内燃機関の制御装置 |
DE112013007079.0T DE112013007079B9 (de) | 2013-05-14 | 2013-05-14 | Steuervorrichtung für Verbrennungsmotor |
US14/890,473 US9879624B2 (en) | 2013-05-14 | 2013-05-14 | Controlling device for internal combustion engine |
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PCT/JP2013/063430 WO2014184871A1 (ja) | 2013-05-14 | 2013-05-14 | 内燃機関の制御装置 |
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US (1) | US9879624B2 (ja) |
JP (1) | JP6041049B2 (ja) |
CN (1) | CN105229287B (ja) |
DE (1) | DE112013007079B9 (ja) |
WO (1) | WO2014184871A1 (ja) |
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WO2019230406A1 (ja) * | 2018-05-31 | 2019-12-05 | 株式会社デンソー | 内燃機関の制御装置および内燃機関の制御方法 |
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JP5733478B2 (ja) * | 2012-07-25 | 2015-06-10 | 日産自動車株式会社 | 内燃機関の制御装置及び制御方法 |
EP2998548B1 (en) * | 2013-05-14 | 2017-09-27 | Toyota Jidosha Kabushiki Kaisha | Control device for internal combustion engine |
US20160123250A1 (en) * | 2013-05-24 | 2016-05-05 | Toyota Jidosha Kabushiki Kaisha | Device for controlling internal combustion engine |
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Also Published As
Publication number | Publication date |
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DE112013007079B4 (de) | 2019-03-14 |
US9879624B2 (en) | 2018-01-30 |
JP6041049B2 (ja) | 2016-12-07 |
US20160090929A1 (en) | 2016-03-31 |
JPWO2014184871A1 (ja) | 2017-02-23 |
DE112013007079B9 (de) | 2019-05-16 |
DE112013007079T5 (de) | 2016-02-11 |
CN105229287A (zh) | 2016-01-06 |
CN105229287B (zh) | 2018-04-20 |
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