WO2023209895A1 - ４ストロークエンジン - Google Patents

４ストロークエンジン Download PDF

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Publication number
WO2023209895A1
WO2023209895A1 PCT/JP2022/019159 JP2022019159W WO2023209895A1 WO 2023209895 A1 WO2023209895 A1 WO 2023209895A1 JP 2022019159 W JP2022019159 W JP 2022019159W WO 2023209895 A1 WO2023209895 A1 WO 2023209895A1
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WO
WIPO (PCT)
Prior art keywords
injection
amount
fuel
intake valve
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.)
Ceased
Application number
PCT/JP2022/019159
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
茂 浜松
剛史 杉本
正彦 伊藤
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP2023515063A priority Critical patent/JP7271811B1/ja
Priority to DE112022000138.0T priority patent/DE112022000138B4/de
Priority to PCT/JP2022/019159 priority patent/WO2023209895A1/ja
Priority to TW112113803A priority patent/TWI827500B/zh
Priority to FR2304198A priority patent/FR3134854B1/fr
Publication of WO2023209895A1 publication Critical patent/WO2023209895A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/34—Controlling fuel injection of the low 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • F02D41/126—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off transitional corrections at the end of the cut-off period
    • 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
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
    • F02D41/345—Controlling injection timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/02—Four-stroke combustion engines with electronic control

Definitions

  • the present invention relates to a four-stroke engine.
  • a four-stroke engine includes at least one combustion chamber, an intake passage connected to the combustion chamber, at least one intake valve that opens and closes an intake opening that is a connection between the combustion chamber and the intake passage, and supplies fuel to the intake passage.
  • This configuration includes a fuel injection device that injects fuel, and a control device that controls the fuel injection device.
  • Patent Document 1 describes that a predetermined basic amount of fuel is injected during the valve closing period, and when an increased amount of fuel occurs to cope with transients such as acceleration, the increased amount is injected during the valve opening period. has been done.
  • the present invention has been made in view of the above, and it is an object of the present invention to provide a four-stroke engine that can perform good combustion without causing deterioration of emissions even during transitions such as acceleration. .
  • a four-stroke engine includes at least one combustion chamber, an intake passage connected to the combustion chamber, and at least one intake valve that opens and closes an intake opening that is a connection part between the combustion chamber and the intake passage.
  • a four-stroke engine comprising: a fuel injection device that injects fuel into the intake passage; and a control device that controls the fuel injection device, the control device starting from an intake stroke defined by a piston position, and starting from a compression stroke defined by a piston position.
  • the intake valve close injection in which the supply of fuel ends during the valve closing period before the intake valve opens and the intake valve multi-injection control that controls the fuel injector so that both intake valve open injection and intake valve open injection in which fuel supply ends during the open valve opening period are performed within one combustion cycle; and one combustion cycle.
  • the multi-injection control and the single injection control are executed by switching between the single injection control that controls the fuel injection device so that the intake valve-closed injection is performed and the intake valve-opened injection is not performed.
  • a limit amount is set for the intake valve-closed injection amount, which is the fuel injection amount in the intake valve-closed injection, and when the intake valve-closed injection amount exceeds the limit amount, at least the limit amount is set.
  • the multi-injection control is executed so that the same amount of fuel is supplied in the intake valve opening injection.
  • the intake valve closing injection amount can be adjusted within the limit amount range in single injection control and multi-injection control.
  • single injection control for example, during a transient period when the amount of fuel increases, such as when the opening of the throttle valve increases, the increased amount is injected when the intake valve is closed, as long as it does not exceed the limit amount. Since fuel can be supplied, atomization of fuel in the intake passage can be promoted, and deterioration of emissions can be prevented from occurring.
  • multi-injection control even during a transient period, instead of supplying all the increased amount through injection when the intake valve is closed, a part of the increased amount can also be supplied through injection when the intake valve is opened. It is possible to prevent the occurrence of deterioration of emissions. In this way, good combustion can be achieved without deteriorating emissions even during transient times such as acceleration.
  • the control device controls the amount of fuel that is required when returning from fuel cut control that temporarily interrupts fuel supply to fuel injection control that causes fuel supply to be performed in an engine operating state.
  • the single injection control is performed, and when the determined fuel injection amount exceeds the limit amount, the multi-injection control is performed.
  • the control device changes the fuel cut period in the fuel cut control stepwise from a short operating condition to a long operating condition, and controls the intake passage when returning to fuel injection control.
  • the position of the throttle valve that is provided inside and adjusts the amount of air taken into the combustion chamber is at a predetermined position, under operating conditions where the fuel cut period is short, the intake air closes as the fuel cut period increases.
  • the intake valve-closed injection amount reaches the limit amount while changing to an operating condition in which the valve-time injection amount increases and the fuel cut period is longer, the increase in the intake-valve-closed injection amount is stopped.
  • the four-stroke engine according to the present invention further includes a throttle valve provided inside the intake passage to adjust the amount of air taken into the combustion chamber, and the control device controls the restriction on the injection amount when the intake valve is closed. The amount is controlled so that the amount is greater than the steady-state injection amount, which is the injection amount when the throttle valve is at a predetermined position and the fuel cut control is not performed.
  • the control device changes the limit amount according to the position of a throttle valve that is provided inside the intake passage and adjusts the amount of air taken into the combustion chamber.
  • the intake valve closing injection amount can be flexibly set according to the load.
  • FIG. 1 is a diagram schematically showing an example of a four-stroke engine.
  • FIG. 2 is a diagram schematically showing an example of the temporal relationship between the throttle valve position and the injection signal in the fuel injection device.
  • FIG. 3 is a diagram schematically showing another example of the temporal relationship between the throttle valve position and the injection signal in the fuel injection device.
  • FIG. 4 is a flowchart showing an example of control in a four-stroke engine control device.
  • FIG. 5 is a diagram showing an example of a four-stroke engine according to this embodiment.
  • FIG. 1 is a diagram schematically showing an example of a four-stroke engine 100.
  • the four-stroke engine 100 includes an engine body 10, an intake passage 21 and an exhaust passage 22, an intake valve 31 and an exhaust valve 32, a throttle valve 33, a crank angle detector 41, a throttle valve position detector 42, and an intake passage. It includes a passage pressure detector 43, a fuel injection device 50, and a control device 60.
  • the engine main body 10 has a cylinder 11 and a crankcase 12. At least one cylinder 11 is provided.
  • the number of cylinders 11 is not particularly limited, and may be a single cylinder, two cylinders, three cylinders, four cylinders, or the like.
  • the cylinder 11 has a combustion chamber 13.
  • the combustion chamber 13 has an intake opening 17 and an exhaust opening 18 .
  • a spark plug 19 is arranged in the combustion chamber 13 . The spark plug 19 ignites the air-fuel mixture supplied into the combustion chamber 13, thereby combusting the air-fuel mixture.
  • a piston 14 is arranged in the combustion chamber 13.
  • the piston 14 reciprocates within the cylinder 11 by combustion of the air-fuel mixture containing fuel supplied to the combustion chamber 13 .
  • the volume of the combustion chamber 13 increases or decreases.
  • Piston 14 is connected to crankshaft 16 via connecting rod 15.
  • the crankshaft 16 rotates in conjunction with the reciprocating movement of the piston 14.
  • Crankshaft 16 is arranged within crankcase 12 .
  • the intake passage 21 is connected to the intake opening 17 of the combustion chamber 13.
  • the intake opening 17 is a connection between the combustion chamber 13 and the intake passage 21 .
  • the intake passage 21 has an atmosphere opening 21a which is an opening to the atmosphere.
  • the exhaust passage 22 is connected to the exhaust opening 18 of the combustion chamber 13.
  • the exhaust opening 18 is a connection between the combustion chamber 13 and the exhaust passage 22.
  • the intake valve 31 opens and closes the intake opening 17.
  • the exhaust valve 32 opens and closes the exhaust opening 18.
  • the intake valve 31 and the exhaust valve 32 open and close by being driven by a drive mechanism 34 such as a camshaft, for example.
  • the throttle valve 33 is arranged inside the intake passage 21.
  • the throttle valve 33 adjusts the amount of air taken into the combustion chamber 13.
  • the responsiveness of the amount of air taken into the combustion chamber 13 is improved.
  • the crank angle detector 41 detects the crank rotation angle, which is the rotation angle of the crankshaft 16.
  • the throttle valve position detector 42 detects the throttle valve position, which is the position of the throttle valve 33.
  • the intake passage pressure detector 43 detects the intake passage pressure, which is the pressure inside the intake passage 21.
  • detectors In addition to the above-mentioned detectors, various types of detectors (not shown) may be used, such as a detector that detects the temperature inside the intake passage 21, a detector that detects the temperature inside the engine body 10, a detector that detects the engine rotation speed, etc. A detector is provided.
  • the fuel injection device 50 injects fuel into the intake passage 21.
  • the fuel injection device 50 supplies fuel into the intake passage 21 by injecting fuel.
  • the control device 60 includes a processing device such as a CPU (Central Processing Unit), a storage device such as a RAM (Random Access Memory) or a ROM (Read Only Memory), a timer, and the like.
  • the control device 60 receives detection results from each detector such as a crank angle detector 41, a throttle valve position detector 42, an intake passage pressure detector 43, and the like.
  • the control device 60 controls the fuel injection device 50 and the spark plug 19.
  • the control device 60 controls the amount of fuel injected and the timing at which the fuel injection device 50 injects the fuel.
  • Control device 60 controls the timing of addition of spark plug 19.
  • the four-stroke engine 100 configured as described above repeats a combustion cycle.
  • One combustion cycle includes four strokes, starting with a compression stroke defined by the piston position, ending with an expansion stroke, an exhaust stroke, and an intake stroke.
  • fuel is injected into the intake passage 21 from the fuel injection device 50.
  • the intake stroke when the intake valve 31 opens, a mixture of air passing through the throttle valve 33 and fuel injected from the fuel injection device 50 is supplied to the combustion chamber 13 of the cylinder 11.
  • the piston 14 compresses the air-fuel mixture in the combustion chamber 13.
  • the air-fuel mixture ignited by the spark plug 19 burns and pushes the piston 14.
  • the exhaust stroke the exhaust valve 32 opens, and the exhaust gas after combustion is discharged from the combustion chamber 13 to the exhaust passage 22.
  • FIG. 2 is a diagram schematically showing an example of the temporal relationship between the throttle valve position P and the injection signal in the fuel injection device 50.
  • the horizontal axis indicates time.
  • the horizontal axis may be the crank angle.
  • the control device 60 switches between single injection control and multi-injection control.
  • Single injection control refers to controlling the fuel injection device 50 so that the intake valve closed injection J1 is performed and the intake valve open injection J2 is not performed within one combustion cycle.
  • Multi-injection control refers to controlling the fuel injection device 50 so that the intake valve-closed injection J1 and the intake valve-opened injection J2 are performed within one combustion cycle.
  • the intake valve closing injection J1 is an injection in which the supply of fuel ends during the valve closing period before the intake valve 31 opens.
  • the control device 60 is configured to operate, for example, in a steady state where the position of the throttle valve 33 does not change, or in a low load state where the throttle valve opening is small, and in which the opening of the throttle valve 33 gradually increases at a constant small rate of change. In a slow acceleration scene, control can be performed so that the intake valve closing injection J1 is performed.
  • the intake valve open injection J2 is an injection in which the supply of fuel ends during the open period when the intake valve 31 is open.
  • the control device 60 can perform the intake valve-closed injection J1 and the intake-valve-opened injection J2 in an acceleration scene in which the position of the throttle valve 33 changes to a larger open state.
  • the intake valve open injection J2 refers to injecting fuel from the fuel injection device 50 during the valve open period R2 during which the intake valve 31 is open after the valve closed period R1 within one combustion cycle.
  • an acceleration scene in which the position of the throttle valve 33 changes to a larger open state includes, for example, an acceleration scene in which the position of the throttle valve 33 changes from a low load state to a high load state.
  • the low load state can be, for example, a state in which the load is lower than the average value of the load in one combustion cycle.
  • the high load state can be a state in which the load is higher than the average value of the load in one combustion cycle.
  • the control device 60 controls the injection amount of fuel in the intake valve-closing injection J1 at a first time point t1, which is a predetermined timing corresponding to the intake valve-closing injection J1, in one combustion cycle, for example. Obtain the injection amount when the intake valve is closed. Further, the control device 60 controls, for example, in one combustion cycle, at a second time point t2, which is a predetermined timing corresponding to the intake valve open injection J2, the control device 60 controls the intake valve open injection amount, which is the fuel injection amount in the intake valve open injection J2, at a second time point t2, which is a predetermined timing corresponding to the intake valve open injection J2. Get the hourly injection amount. As shown in FIG. 2, when the position of the throttle valve 33 is different between the first time point t1 and the second time point t2, the control device 60 can perform multi-injection control regardless of the presence or absence of a restriction amount, which will be described later. .
  • FIG. 3 is a diagram schematically showing an example of the temporal relationship between the throttle valve position P and the injection signal in the fuel injection device 50.
  • the horizontal axis indicates time.
  • the horizontal axis may be the crank angle.
  • the control device 60 performs intake valve closing injection J3 when returning from fuel cut control to fuel injection control that supplies fuel.
  • Fuel cut control is, for example, control that temporarily interrupts the supply of fuel while the engine is operating.
  • Fuel injection control is control for supplying fuel in an engine operating state.
  • the control device 60 executes single injection control if the determined fuel injection amount is below the limit amount, and if the determined fuel injection amount exceeds the limit amount. If it exceeds the limit, multi-injection control is performed.
  • the control device 60 changes the fuel cut period in the fuel cut control stepwise from a short operating condition to a long operating condition, and when the throttle valve 33 is at a predetermined position when returning to fuel injection control, Execute the following controls. That is, the control device 60 executes single injection control so that the intake valve closing injection amount increases as the fuel cut period increases under operating conditions where the fuel cut period is short, and under operating conditions where the fuel cut period is long. When the intake valve closed injection amount reaches the limit amount during the change, single injection control is executed so that the increase in the intake valve closed injection amount stops, and the operating conditions change to a longer fuel cut period. Then, multi-injection control is executed so that the amount of fuel that does not exceed the limit amount is supplied in the intake valve-closed injection J3, and at least the amount of fuel that exceeds the limit amount is supplied in the intake valve-opened injection J4.
  • the control device 60 controls the outside temperature when the rotation speed at the time of returning to fuel injection control is a predetermined speed.
  • the above control may be executed when the environments such as atmospheric pressure and the like are the same, and when the engine temperatures are the same.
  • the control device 60 sets the limit amount to the intake valve closing injection amount to the steady state injection amount, which is the injection amount when the throttle valve 33 is at a predetermined position and fuel cut control is not performed. Control so that it is more than the amount.
  • the limit amount of the intake valve closing injection amount can be, for example, a value obtained by multiplying the steady state injection amount by a predetermined constant.
  • the control device 60 may change the restriction amount depending on the position of the throttle valve 33. By changing the limit amount according to the position of the throttle valve 33, the intake valve closing injection amount can be flexibly set according to the load.
  • the control device 60 acquires the intake valve closing injection amount at a third time point t3, which is a predetermined timing corresponding to the intake valve closing injection J3.
  • the control device 60 executes multi-injection control so that at least the amount of fuel exceeding the limit amount is supplied in the intake valve opening injection J4.
  • the control device 60 acquires the timing at a fourth time t4, which is a predetermined timing corresponding to the intake valve open injection J4.
  • the intake valve opening injection amount includes at least the injection amount exceeding the limit amount of the intake valve closing injection amount described above.
  • the control device 60 performs the intake valve open injection J4 at an injection amount corresponding to the obtained intake valve open injection amount.
  • FIG. 4 is a flowchart showing an example of control in the control device 60 of the four-stroke engine 100.
  • FIG. 4 is an example in which multi-injection control is performed when returning from fuel cut control to fuel injection control.
  • the control device 60 acquires the intake valve closing injection amount at a third time point t3, which is a predetermined timing corresponding to the intake valve closing injection J3 (step S10).
  • the control device 60 determines whether the obtained intake valve closing injection amount exceeds a preset limit amount (step S20). When the control device 60 determines that the intake valve closing injection amount exceeds the limit amount (Yes in step S20), the control device 60 controls the fuel injection device 50 to perform multi-injection control (step S30). Further, when the control device 60 determines that the intake valve closing injection amount does not exceed the limit amount (No in step S20), the control device 60 controls the fuel injection device 50 to perform single injection control (step S40). .
  • FIG. 5 is a diagram showing an example of the four-stroke engine 100 according to the present embodiment.
  • the four-stroke engine 100 is an independent throttle type engine.
  • the independent throttle type four-stroke engine 100 has an independent intake passage portion 21R for each cylinder 11 through which air taken into a single combustion chamber 13 flows.
  • the throttle valve 33 is provided for each independent intake passage section 21R.
  • the control device 60 obtains the intake valve closing injection amount and the intake valve opening injection amount in accordance with the rate of change in the position of each throttle valve 33 in an acceleration scene.
  • the throttle valve 33 can be provided at a position close to the intake valve 31. Therefore, the responsiveness of the amount of air taken into the combustion chamber 13 can be improved.
  • the injection amount when the intake valve is closed and the injection amount when the intake valve is opened can be obtained according to the rate of change in the position of the throttle valve 33, which has high responsiveness to the air amount.
  • the four-stroke engine 100 is not limited to an independent throttle type engine.
  • the four-stroke engine 100 may be a single throttle engine having a single throttle valve 33 and one or more cylinders 11.
  • the four-stroke engine 100 includes at least one combustion chamber 13, an intake passage 21 connected to the combustion chamber 13, and an intake passage 21 that is a connection portion between the combustion chamber 13 and the intake passage 21.
  • a four-stroke engine 100 that includes at least one intake valve 31 that opens and closes an opening 17, a fuel injection device 50 that injects fuel into an intake passage 21, and a control device 60 that controls the fuel injection device 50. 60, when one combustion cycle is defined as four strokes that start with an intake stroke defined by the piston position and end with a compression stroke, an expansion stroke, and an exhaust stroke, the fuel is removed during the valve closing period before the intake valve 31 opens.
  • Fuel injection is performed so that both the intake valve closed injection J3, in which supply ends, and the intake valve open injection J4, in which fuel supply ends during the open period when the intake valve 31 is open, are performed within one combustion cycle.
  • multi-injection control is executed so that at least the amount of fuel exceeding the limit amount is supplied in the intake valve open injection J4.
  • the intake valve closing injection amount can be adjusted within the limit amount range in single injection control and multi-injection control.
  • single injection control for example, during a transient period when the amount of fuel increases, such as when the opening degree of the throttle valve 33 increases, the increased amount is injected at intake valve close injection J3 as long as it does not exceed the limit amount. Since the fuel can be supplied through the intake passage 21, atomization of the fuel in the intake passage 21 can be promoted, and deterioration of emissions can be prevented from occurring.
  • the control device 60 performs the required control when returning from the fuel cut control, which temporarily interrupts the supply of fuel, to the fuel injection control, which supplies the fuel in the engine operating state. If the determined fuel injection amount is less than or equal to the limit amount, single injection control is performed, and if the determined fuel injection amount exceeds the limit amount, multi-injection control is performed.
  • the control device 60 changes the fuel cut period in the fuel cut control stepwise from a short operating condition to a long operating condition, and controls the inside of the intake passage 21 when returning to fuel injection control.
  • the position of the throttle valve 33 which is installed in the combustion chamber 13 and adjusts the amount of air taken into the combustion chamber 13, is at a predetermined position, under operating conditions where the fuel cut period is short, the fuel cut period increases and the intake valve close injection is performed.
  • the intake valve closed injection amount reaches the limit amount while changing to an operating condition where the amount increases and the fuel cut period is long, single injection control is executed so that the increase in the intake valve closed injection amount is stopped.
  • the amount of fuel that does not exceed the limit amount is supplied in the intake valve closed injection J3, and at least the amount of fuel that exceeds the limit amount is supplied in the intake valve open injection J4. Execute multi-injection control like this.
  • the four-stroke engine 100 further includes a throttle valve 33 that is provided inside the intake passage 21 and adjusts the amount of air taken into the combustion chamber 13, and the control device 60 controls the injection amount when the intake valve is closed.
  • the limit amount is controlled to be larger than the steady-state injection amount, which is the injection amount when the throttle valve 33 is at a predetermined position and fuel cut control is not performed.
  • control device 60 changes the restriction amount according to the position of the throttle valve 33, which is provided inside the intake passage 21 and adjusts the amount of air taken into the combustion chamber 13. .
  • the intake valve closing injection amount can be flexibly set according to the load.

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  • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
PCT/JP2022/019159 2022-04-27 2022-04-27 ４ストロークエンジン Ceased WO2023209895A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2023515063A JP7271811B1 (ja) 2022-04-27 2022-04-27 ４ストロークエンジン
DE112022000138.0T DE112022000138B4 (de) 2022-04-27 2022-04-27 Viertaktmotor
PCT/JP2022/019159 WO2023209895A1 (ja) 2022-04-27 2022-04-27 ４ストロークエンジン
TW112113803A TWI827500B (zh) 2022-04-27 2023-04-13 四衝程引擎
FR2304198A FR3134854B1 (fr) 2022-04-27 2023-04-26 Moteur à quatre temps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/019159 WO2023209895A1 (ja) 2022-04-27 2022-04-27 ４ストロークエンジン

Publications (1)

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WO2023209895A1 true WO2023209895A1 (ja) 2023-11-02

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DE (1) DE112022000138B4 (https=)
FR (1) FR3134854B1 (https=)
TW (1) TWI827500B (https=)
WO (1) WO2023209895A1 (https=)

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JPS639656A (ja) * 1986-06-27 1988-01-16 Nissan Motor Co Ltd 内燃機関の燃料噴射時期制御装置
JPH05141293A (ja) * 1991-11-21 1993-06-08 Daihatsu Motor Co Ltd 空燃比補正方法
JPH06280660A (ja) * 1993-01-29 1994-10-04 Mazda Motor Corp エンジンの燃料制御装置
JPH11247681A (ja) * 1998-02-27 1999-09-14 Aisan Ind Co Ltd エンジンの燃料噴射制御装置およびその方法
JPH11257130A (ja) * 1998-03-17 1999-09-21 Suzuki Motor Corp 内燃機関の燃料制御装置
JP2008151095A (ja) * 2006-12-20 2008-07-03 Nissan Motor Co Ltd 燃料噴射制御装置
JP2009144649A (ja) * 2007-12-17 2009-07-02 Honda Motor Co Ltd 燃料噴射制御装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05202783A (ja) * 1992-01-28 1993-08-10 Toyota Motor Corp 内燃機関の燃料噴射制御装置
EP3252288A4 (en) * 2015-01-30 2018-12-26 Yamaha Hatsudoki Kabushiki Kaisha Engine unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62150044A (ja) * 1985-12-23 1987-07-04 Mazda Motor Corp エンジンの燃料制御装置
JPS639656A (ja) * 1986-06-27 1988-01-16 Nissan Motor Co Ltd 内燃機関の燃料噴射時期制御装置
JPH05141293A (ja) * 1991-11-21 1993-06-08 Daihatsu Motor Co Ltd 空燃比補正方法
JPH06280660A (ja) * 1993-01-29 1994-10-04 Mazda Motor Corp エンジンの燃料制御装置
JPH11247681A (ja) * 1998-02-27 1999-09-14 Aisan Ind Co Ltd エンジンの燃料噴射制御装置およびその方法
JPH11257130A (ja) * 1998-03-17 1999-09-21 Suzuki Motor Corp 内燃機関の燃料制御装置
JP2008151095A (ja) * 2006-12-20 2008-07-03 Nissan Motor Co Ltd 燃料噴射制御装置
JP2009144649A (ja) * 2007-12-17 2009-07-02 Honda Motor Co Ltd 燃料噴射制御装置

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TW202342869A (zh) 2023-11-01
FR3134854B1 (fr) 2024-11-15
DE112022000138T5 (de) 2023-12-28
JPWO2023209895A1 (https=) 2023-11-02
JP7271811B1 (ja) 2023-05-11
TWI827500B (zh) 2023-12-21
FR3134854A1 (fr) 2023-10-27
DE112022000138B4 (de) 2025-05-15

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