WO2009060979A1 - 火花点火式内燃機関 - Google Patents
火花点火式内燃機関 Download PDFInfo
- Publication number
- WO2009060979A1 WO2009060979A1 PCT/JP2008/070534 JP2008070534W WO2009060979A1 WO 2009060979 A1 WO2009060979 A1 WO 2009060979A1 JP 2008070534 W JP2008070534 W JP 2008070534W WO 2009060979 A1 WO2009060979 A1 WO 2009060979A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compression ratio
- engine
- mechanical compression
- load
- operation side
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D15/00—Varying compression ratio
- F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
-
- 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
- F02D13/0234—Variable control of the intake valves only changing the valve timing only
-
- 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
- F02D2041/001—Controlling intake air for engines with variable valve actuation
-
- 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 present invention relates to a spark ignition internal combustion engine. Background Technology ''
- the mechanical compression ratio increases as the engine load decreases with the actual compression ratio held constant, and the closing timing of the intake valve is delayed.
- a spark ignition internal combustion engine is known (see, for example, Japanese Patent Laid-Open No. 2000-0 2 1 8 5 2).
- An object of the present invention is to provide a spark ignition internal combustion engine capable of improving thermal efficiency.
- variable compression ratio mechanism capable of changing the mechanical compression ratio and the variable valve timing mechanism capable of controlling the closing timing of the intake valve are provided.
- the mechanical compression ratio becomes higher than that during operation and the mechanical compression ratio gradually decreases as the engine load increases on the engine high load operation side, and the actual compression ratio decreases as the engine load decreases on the engine low load operation side.
- Spark ignition An internal combustion engine is provided. Brief Description of Drawings
- Fig. 1 is an overall view of a spark ignition type internal combustion engine
- Fig. 2 is an exploded perspective view of a variable compression ratio mechanism
- Fig. 3 is a side sectional view of the internal combustion engine schematically shown
- Fig. 4 is a variable valve timing mechanism.
- Fig. 5 is a diagram showing the lift amount of the intake and exhaust valves
- Fig. 6 is a diagram for explaining the mechanical compression ratio, actual compression ratio, and expansion ratio
- Fig. 7 is the relationship between theoretical thermal efficiency and expansion ratio.
- Fig. 8 is a diagram for explaining a normal cycle and an ultra-high expansion ratio cycle
- Fig. 9 is a diagram showing changes in the mechanical compression ratio according to the engine load
- Fig. 10 is for controlling the operation.
- FIG. 11 is a diagram showing a map of intake valve closing timing and the like.
- Figure 1 shows a side cross-sectional view of a spark ignition internal combustion engine.
- 1 is a crankcase
- 2 is a cylinder block
- 3 is a cylinder head
- 4 is a piston
- 5 is a combustion chamber
- 6 is a spark plug disposed in the center of the top surface of the combustion chamber 5
- 7 is Inlet valve
- 8 indicates intake port
- 9 indicates exhaust valve
- 10 indicates exhaust port.
- the intake port 8 is connected to a surge tank 1 2 via an intake branch pipe 1 1, and each intake branch pipe 1 1 has a fuel injection valve 1 3 for injecting fuel into the corresponding intake port 8. Is placed.
- the fuel injection valve 13 may be arranged in each combustion chamber 5 instead of being attached to each intake branch pipe 11.
- Surge tank 1 2 is connected to air cleaner 15 via intake duct 14, and in intake duct 14, throttle valve 17 driven by actuate 16 and intake air using, for example, heat rays
- a quantity detector 1 8 is arranged.
- exhaust port 10 is connected to exhaust manifold 19
- an air-fuel ratio sensor 21 is disposed in the exhaust manifold 19, and is connected to a catalyst component 20 having a built-in three-way catalyst.
- the piston 4 is compressed and dead by changing the relative position of the crankcase 1 and the cylinder block 2 in the cylinder axial direction at the connecting portion between the crankcase 1 and the cylinder block 2.
- a variable compression ratio mechanism A that can change the volume of the combustion chamber 5 when located at the point is provided, and an actual compression action start timing changing mechanism B that can change the start time of the actual compression action is provided.
- the actual compression action start timing changing mechanism B is a variable valve timing mechanism capable of controlling the closing timing of the intake valve 7.
- the electronic control unit 30 consists of a digital computer and is connected to each other by a bidirectional bus 3 1, R 0 M (read only memory) 3 2, RAM (random access memory) 3 3, CPU (microphone processor) 3 4, with input port 3 5 and output port 3 6
- the output signal of the intake air amount detector 1 8 and the output signal of the air-fuel ratio sensor 2 1 are input to the input port 3 5 via the corresponding AD converter 37.
- a load sensor 41 that generates an output voltage proportional to the depression amount L of the accelerator pedal 40 is connected to the accelerator pedal 40, and the output voltage of the load sensor 41 is passed through a corresponding AD converter 37.
- crank angle sensor 42 is connected to the input port 35 to generate an output pulse every time the crankshaft rotates, for example, 30 °.
- the output port 3 6 is connected to the spark plug 6, the fuel injection valve 13, the throttle valve drive actuate 16, the variable compression ratio mechanism A, and the variable valve timing mechanism B through the corresponding drive circuit 38. Connected.
- FIG. 2 shows an exploded perspective view of the variable compression ratio mechanism A shown in FIG. 1, and FIG. 3 shows a side sectional view of the internal combustion engine schematically shown.
- Figure 2 I / j Do ⁇ ⁇ / 070534 Referring to the figure, a plurality of protrusions 50 spaced apart from each other are formed below both side walls of the cylinder block 2, and each of the protrusions 50 has a cross section. A circular cam insertion hole 51 is formed.
- the corresponding protrusions 5 are spaced apart from each other.
- a plurality of protrusions 52 that can be fitted to each other between zeros are formed, and cam insertion holes 53 having a circular cross section are also formed in each of the protrusions 52.
- a pair of camshafts 5 4 and 5 5 are provided as shown in FIG.
- Each camshaft 5 4, 5 5 has another cam insertion hole
- a circular cam 5 6 inserted rotatably in 1 is fixed. These circular cams 5 6 are coaxial with the rotation axis of each cam shaft 5 4 and 5 5
- an eccentric shaft 5 7 that is eccentrically arranged with respect to the rotation axis of each cam shaft 5 4, 55 extends, and another circular cam 5 is placed on the eccentric shaft 5 7.
- these circular cams 58 are disposed between the circular cams 56, and these circular cams 58 are inserted into the corresponding cam insertion holes 53 so as to be rotatable.
- crankcase 1 and cylinder block 2 are the center of the circular cam 5 6 and the circle.
- the cylinder block 2 moves away from the crankcase 1 as the distance between the center of the circular cam 5 6 and the center of the circular cam 5 8 increases.
- the volume of the combustion chamber 5 increases when the piston 4 is located at the compression top dead center. Therefore, the pistons are rotated by rotating the camshafts 5 4 and 5 5. The volume of the combustion chamber 5 when 4 is located at the compression top dead center can be changed.
- a pair of worm gears 6 1 and 6 2 each having a spiral direction opposite to the rotation shaft of the drive motor 59 are provided to rotate the cam shafts 5 4 and 5 5 in the opposite directions.
- the gears 6 3 and 6 4 that mesh with the worm gears 6 1 and 6 2 are fixed to the ends of the force shafts 5 4 and 5 5, respectively.
- the volume of the combustion chamber 5 when the piston 4 is located at the compression top dead center can be changed over a wide range.
- the variable compression ratio mechanism A shown in FIGS. 1 to 3 is an example, and any type of variable compression ratio mechanism can be used.
- FIG. 4 is for driving the intake valve 7 in FIG.
- variable valve timing mechanism B attached to the end of the camshaft 70 is shown.
- this variable valve timing mechanism B is a cylindrical cylinder that rotates together with a timing pulley 7 1 that is rotated by an engine crankshaft through a timing belt in the direction of the arrow, and a timing pulley 7 1.
- a rotating shaft 7 3 that rotates together with the housing 7 2, the camshaft 70 for driving the intake valve and can rotate relative to the cylindrical housing 7 2, and a rotating shaft 7 from the inner peripheral surface of the cylindrical housing 7 2.
- the hydraulic oil supply control to the hydraulic chambers 7 6 and 7 7 is performed by the hydraulic oil supply control valve 7 8.
- This hydraulic oil supply control valve 7 8 has hydraulic chambers 7 6,
- hydraulic ports 7 9, 80 connected respectively, hydraulic oil supply port 8 2 discharged from the hydraulic pump 8 1, a pair of drain ports 8 3, 8 4, each port 7 9, And a spool valve 8 5 for performing communication cutoff control between 8 0, 8 2, 8 3 and 8 4.
- the hydraulic oil supplied from 82 is supplied to the advance hydraulic chamber 76 through the hydraulic port 79 and the hydraulic oil in the retard hydraulic chamber 77 is discharged from the drain port 84. At this time, the rotary shaft 73 is rotated relative to the cylindrical housing 72 in the direction of the arrow.
- the spool valve 85 is moved to the left in FIG. 4, and the hydraulic oil supplied from the supply port 82 is hydraulically The hydraulic oil in the advance hydraulic chamber 76 is supplied to the retard hydraulic chamber 77 through the port 80 and discharged from the drain port 83.
- the rotating shaft 73 is rotated relative to the cylindrical housing 72 in the direction opposite to the arrow.
- the spool valve 85 is When returned to the neutral position shown in FIG. 4, the relative rotational movement of the rotary shaft 73 is stopped, and the rotary shaft 73 is held at the relative rotational position at that time.
- variable valve timing mechanism B can advance and retard the cam phase of the intake valve driving cam shaft 70 by a desired amount.
- the solid line indicates the time when the cam phase of the intake valve driving cam shaft 70 is advanced most by the variable valve timing mechanism B
- the broken line indicates the cam phase of the intake valve driving cam shaft 70. Indicates when is most retarded. Therefore, the valve opening period of the intake valve 7 can be arbitrarily set between the range indicated by the solid line and the range indicated by the broken line in FIG. 5, and therefore the closing timing of the intake valve 7 is also indicated by the arrow C in FIG. Any crank angle within the range can be set.
- variable valve timing mechanism B shown in FIGS. 1 and 4 shows an example.
- variable valve timing that can change only the closing timing of the intake valve while keeping the opening timing of the intake valve constant.
- variable valve timing mechanisms such as mechanisms, can be used.
- FIG. 6 show an engine having a combustion chamber volume of 50 ml and a piston stroke volume of 500 ml for explanation.
- the combustion chamber volume represents the volume of the combustion chamber when the piston is located at the compression top dead center.
- Figure 6 (A) explains the mechanical compression ratio.
- the mechanical compression ratio is determined mechanically from only the piston stroke volume and the combustion chamber volume during the compression stroke, and this mechanical compression ratio is expressed as (combustion chamber volume + stroke volume) Z combustion chamber volume.
- Figure 6 (B) explains the actual compression ratio.
- This actual compression ratio is a value determined from the actual piston stroke volume and the combustion chamber volume from when the compression action is actually started until the piston reaches top dead center.
- Figure 6 (C) illustrates the expansion ratio.
- FIG. 7 shows the relationship between the theoretical thermal efficiency and the expansion ratio
- FIG. 8 shows a comparison between a normal cycle and an ultra-high expansion ratio cycle that are selectively used according to the load in the present invention.
- Fig. 8 (A) shows the normal cycle when the intake valve closes near the bottom dead center and the compression action by the piston starts almost from the vicinity of the intake bottom dead center.
- Fig. 8 (A), (A), (B) shows the normal cycle when the intake valve closes near the bottom dead center and the compression action by the piston starts almost from the vicinity of the intake bottom dead center.
- the combustion chamber volume is 50 ml
- the piston stroke volume is 50 ml.
- the actual compression ratio is almost 1 1
- the 'solid line in Fig. 7 indicates that the actual compression ratio and expansion ratio are almost equal. This shows the change in theoretical thermal efficiency in the normal cycle. In this case, the theoretical thermal efficiency increases as the expansion ratio increases, that is, as the actual compression ratio increases. Therefore, in order to increase the theoretical thermal efficiency in the normal cycle, the actual compression ratio should be increased. However, the actual compression ratio can only be reduced to a maximum of about 12 due to the occurrence of knocking during engine high-load operation. Can not.
- the present inventor has studied to increase the theoretical thermal efficiency by strictly dividing the mechanical compression ratio and the actual compression ratio. As a result, the theoretical thermal efficiency is governed by the expansion ratio. Thus, the actual compression ratio was found to have little effect. That is, if the actual compression ratio is increased, the explosive force increases, but a large amount of energy is required for compression, and thus the theoretical thermal efficiency is hardly increased even if the actual compression ratio is increased.
- FIG. 8 (B) shows an example of using the variable compression ratio mechanism A and variable valve timing mechanism B to increase the expansion ratio while maintaining the actual compression ratio at a low value.
- variable compression ratio mechanism A reduces the combustion chamber volume from 50 ml to 20 ml.
- variable valve timing mechanism B delays the closing timing of the intake valve until the actual piston stroke volume is reduced from 500 ml to 200 ml.
- the actual compression ratio is almost 11 and the expansion ratio is 11 as described above. Compared to this case, the expansion ratio is higher in the case shown in Fig. 8 (B). It can be seen that only is raised to 26. This is why it is called an ultra-high expansion ratio cycle.
- the lower the engine load the worse the thermal efficiency. Therefore, in order to improve the thermal efficiency during engine operation, that is, to improve fuel efficiency, improve the thermal efficiency when the engine load is low. Is required.
- the ultra-high expansion ratio cycle shown in Fig. 8 (B) the actual piston stroke volume during the compression stroke is reduced, so the amount of intake air that can be drawn into the combustion chamber 5 is reduced.
- the ultra-high expansion ratio cycle can only be adopted when the engine load is relatively low. Therefore, in the present invention, when the engine load is relatively low, the super high expansion ratio cycle shown in FIG. 8 (B) is adopted, and during the engine high load operation, the normal cycle shown in FIG. 8 (A) is adopted.
- Figure 9 shows the mechanical compression ratio, expansion ratio, intake valve 7 closing timing, actual compression ratio, intake air volume, throttle valve opening degree 17 and bombing loss according to the engine load at a certain engine speed. Each change is shown.
- Unburned HC in the exhaust gas Te cowpea into the three-way catalyst of the catalytic converter 2 in 0 in this embodiment of the present invention the average air-fuel ratio in the C_ ⁇ and I Nyu_ ⁇ ⁇ to be reduced simultaneously urchin normal combustion chamber 5 Is feedback-controlled to the theoretical air-fuel ratio based on the output signal of the air-fuel ratio sensor 21.
- the normal cycle shown in Fig. 8 (8) is executed during engine high-load operation. Accordingly, as shown in FIG. 9, the expansion ratio is low because the mechanical compression ratio is lowered at this time, and as shown by the solid line in FIG. 9, the closing timing of the intake valve 7 is advanced as shown by the solid line in FIG. It has been. At this time, the amount of intake air is large, and at this time, the opening degree of the throttle valve 17 is kept fully open or almost fully open, so that the pumping loss is zero.
- the closing timing of the intake valve 7 is delayed to reduce the intake air amount.
- the mechanical compression ratio is increased as the engine load is lowered so that the actual compression ratio is kept substantially constant, and therefore, the expansion ratio is also increased as the engine load is lowered.
- the throttle valve 17 is kept fully open or almost fully open, and therefore the amount of intake air supplied into the combustion chamber 5 does not depend on the throttle valve 17 but the intake valve 7 It is controlled by changing the valve closing timing. At this time, the bombing loss is zero.
- the mechanical compression ratio is increased as the intake air amount is decreased while the actual compression ratio is substantially constant. That is, the volume of the combustion chamber 5 when the piston 4 reaches the compression top dead center is reduced in proportion to the reduction of the intake air amount. Therefore, the volume of the combustion chamber 5 when the piston 4 reaches the compression top dead center changes in proportion to the intake air amount.
- the air-fuel ratio in the combustion chamber 5 is the stoichiometric air-fuel ratio.
- the mechanical compression ratio When the engine load is further reduced, the mechanical compression ratio is further increased, and when the engine load is lowered to a medium load L slightly close to the low load, the mechanical compression ratio reaches the limit mechanical compression ratio that is the structural limit of the combustion chamber 5. .
- the mechanical compression ratio When the mechanical compression ratio reaches the limit mechanical compression ratio, the mechanical compression ratio is maintained at the limit mechanical compression ratio in a region where the load is lower than the engine load L when the mechanical compression ratio reaches the limit mechanical compression ratio. Therefore, the mechanical compression ratio is maximized and the expansion ratio is maximized on the low load side engine medium load operation and engine low load operation, that is, on the engine low load operation side. In other words, the mechanical compression ratio is maximized so that the maximum expansion ratio is obtained on the engine low load operation side.
- the closing timing of the intake valve 7 is delayed as the engine load becomes lower as shown by the solid line in FIG.
- the throttle valve 17 is closed as the engine load decreases.
- the actual compression ratio on the engine low load operation side is lowered compared to the actual compression ratio on the engine high load operation side.
- the actual compression ratio decreases in this way, the temperature in the combustion chamber 5 at the compression end decreases, and there is a risk that the ignition and combustion of the fuel will deteriorate.
- the throttle valve 17 is closed as shown in FIG. 9, turbulence occurs in the combustion chamber 5 due to the throttle action of the intake air flow by the throttle valve 17, so that the fuel Since the ignition and combustion are improved, there is no risk of worsening of the fuel ignition and combustion.
- the expansion ratio is set to 26 in the ultra-high expansion ratio cycle shown in Fig. 8 (B).
- variable compression ratio mechanism ⁇ is formed so that the expansion ratio becomes 20 or more.
- the intake air amount can be controlled without depending on the throttle valve 17 by advancing the closing timing of the intake valve 7 as the engine load becomes lower. Accordingly, in the embodiment according to the present invention, when the solid line and the broken line in FIG. 9 are both included, in the embodiment according to the present invention, the engine load becomes low when the intake valve 7 is closed. As a result, it is moved away from the intake bottom dead center BDC.
- Figure 10 shows the operation control routine. Referring to FIG. 10, first, at step 100, the target actual compression ratio is calculated. Next, at step 1 0 1, the closing timing of the intake valve 7 from the map shown in FIG. 11 (A) / nr _.
- I C is calculated. That is, the required intake air amount is supplied into the combustion chamber 5.
- the closing timing of intake valve 7 required for engine I is engine load L and engine speed
- step 1002 the mechanical compression ratio CR is calculated. Then
- step 103 the opening of the throttle valve 17 is calculated.
- Opening angle of the rotary valve 1 7 is a function of the engine load L and the engine speed N.
- step 1 0 4 the mechanical compression ratio is
- variable compression ratio mechanism A When the variable compression ratio mechanism A is controlled by C, the intake valve 7 is closed.
- Variable valve evening mechanism B is controlled so that the timing is the closing timing I C
- the throttle valve 1 7 so that the opening degree is 0.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008003292.0T DE112008003292B4 (de) | 2007-11-06 | 2008-11-05 | Brennkraftmaschine der Bauart mit Fremdzündung |
BRPI0815776-6A BRPI0815776B1 (pt) | 2007-11-06 | 2008-11-05 | Motor de combustão interna do tipo de ignição por faísca |
US12/674,625 US8352157B2 (en) | 2007-11-06 | 2008-11-05 | Spark ignition type internal combustion engine |
CN2008801044334A CN101815854B (zh) | 2007-11-06 | 2008-11-05 | 火花点火式内燃机 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007288926A JP4367548B2 (ja) | 2007-11-06 | 2007-11-06 | 火花点火式内燃機関 |
JP2007-288926 | 2007-11-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009060979A1 true WO2009060979A1 (ja) | 2009-05-14 |
Family
ID=40625861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/070534 WO2009060979A1 (ja) | 2007-11-06 | 2008-11-05 | 火花点火式内燃機関 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8352157B2 (ja) |
JP (1) | JP4367548B2 (ja) |
CN (1) | CN101815854B (ja) |
BR (1) | BRPI0815776B1 (ja) |
DE (1) | DE112008003292B4 (ja) |
RU (1) | RU2436981C2 (ja) |
WO (1) | WO2009060979A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3327270A1 (en) | 2016-11-29 | 2018-05-30 | Toyota Jidosha Kabushiki Kaisha | Variable compression ratio internal combustion engine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9051875B2 (en) | 2012-10-30 | 2015-06-09 | Scott BLACKSTOCK | Variable compression ratio engine |
KR102394575B1 (ko) | 2017-11-20 | 2022-05-04 | 현대자동차 주식회사 | 연속 가변 밸브 듀레이션 장치 및 이를 포함하는 엔진 |
KR101807036B1 (ko) * | 2015-12-11 | 2017-12-08 | 현대자동차 주식회사 | 연속 가변 밸브 듀레이션 엔진의 밸브 타이밍 제어 시스템 및 방법 |
JP2017190742A (ja) * | 2016-04-14 | 2017-10-19 | トヨタ自動車株式会社 | 内燃機関 |
JP6384509B2 (ja) * | 2016-04-14 | 2018-09-05 | トヨタ自動車株式会社 | 内燃機関 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007071046A (ja) * | 2005-09-05 | 2007-03-22 | Toyota Motor Corp | 可変圧縮比機構を備えた内燃機関 |
JP2007239550A (ja) * | 2006-03-07 | 2007-09-20 | Nissan Motor Co Ltd | 圧縮比可変エンジン |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0983433B1 (en) * | 1998-02-23 | 2007-05-16 | Cummins Inc. | Premixed charge compression ignition engine with optimal combustion control |
JP2001159329A (ja) * | 1999-12-01 | 2001-06-12 | Nissan Motor Co Ltd | 可変動弁エンジンの制御装置 |
JP4035963B2 (ja) * | 2001-03-27 | 2008-01-23 | 日産自動車株式会社 | 内燃機関の制御装置 |
JP2003232233A (ja) | 2001-12-06 | 2003-08-22 | Nissan Motor Co Ltd | 内燃機関の制御装置 |
JP4345307B2 (ja) * | 2003-01-15 | 2009-10-14 | トヨタ自動車株式会社 | 可変圧縮比機構を備えた内燃機関の制御装置 |
DE102004026157B4 (de) * | 2003-05-30 | 2017-11-09 | Honda Motor Co., Ltd. | Ventilzeitsteuerungs-Steuer-/Regelsystem und Steuer-/Regelsystem für einen Verbrennungsmotor |
JP4438368B2 (ja) * | 2003-10-01 | 2010-03-24 | 日産自動車株式会社 | 可変圧縮比エンジンの制御装置 |
JP2005120942A (ja) * | 2003-10-17 | 2005-05-12 | Nissan Motor Co Ltd | 直噴火花点火式内燃機関の制御装置 |
JP4103769B2 (ja) * | 2003-10-23 | 2008-06-18 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
JP4433861B2 (ja) * | 2004-04-05 | 2010-03-17 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP4276198B2 (ja) * | 2005-03-17 | 2009-06-10 | 株式会社日立製作所 | 筒内噴射式内燃機関の制御装置 |
US7267087B2 (en) * | 2005-12-01 | 2007-09-11 | Ford Global Technologies, Llc | Variable compression ratio scheduling at idle speed conditions |
JP4367439B2 (ja) * | 2006-05-30 | 2009-11-18 | トヨタ自動車株式会社 | 火花点火式内燃機関 |
JP4259569B2 (ja) * | 2006-11-10 | 2009-04-30 | トヨタ自動車株式会社 | 火花点火式内燃機関 |
JP4483915B2 (ja) * | 2007-09-06 | 2010-06-16 | トヨタ自動車株式会社 | 火花点火式内燃機関のアイドリング制御装置 |
JP4396756B2 (ja) * | 2007-10-11 | 2010-01-13 | トヨタ自動車株式会社 | 動力出力装置およびこれを備える車両ならびに動力出力装置の制御方法 |
JP4367549B2 (ja) * | 2007-11-06 | 2009-11-18 | トヨタ自動車株式会社 | 火花点火式内燃機関 |
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2007
- 2007-11-06 JP JP2007288926A patent/JP4367548B2/ja not_active Expired - Fee Related
-
2008
- 2008-11-05 US US12/674,625 patent/US8352157B2/en active Active
- 2008-11-05 BR BRPI0815776-6A patent/BRPI0815776B1/pt not_active IP Right Cessation
- 2008-11-05 DE DE112008003292.0T patent/DE112008003292B4/de not_active Expired - Fee Related
- 2008-11-05 RU RU2010107187/06A patent/RU2436981C2/ru active
- 2008-11-05 CN CN2008801044334A patent/CN101815854B/zh not_active Expired - Fee Related
- 2008-11-05 WO PCT/JP2008/070534 patent/WO2009060979A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007071046A (ja) * | 2005-09-05 | 2007-03-22 | Toyota Motor Corp | 可変圧縮比機構を備えた内燃機関 |
JP2007239550A (ja) * | 2006-03-07 | 2007-09-20 | Nissan Motor Co Ltd | 圧縮比可変エンジン |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3327270A1 (en) | 2016-11-29 | 2018-05-30 | Toyota Jidosha Kabushiki Kaisha | Variable compression ratio internal combustion engine |
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US8352157B2 (en) | 2013-01-08 |
DE112008003292T5 (de) | 2010-11-04 |
BRPI0815776A2 (pt) | 2015-08-25 |
JP4367548B2 (ja) | 2009-11-18 |
CN101815854B (zh) | 2012-10-24 |
RU2010107187A (ru) | 2011-09-10 |
JP2009114962A (ja) | 2009-05-28 |
BRPI0815776B1 (pt) | 2019-09-17 |
RU2436981C2 (ru) | 2011-12-20 |
US20110114063A1 (en) | 2011-05-19 |
DE112008003292B4 (de) | 2018-06-07 |
CN101815854A (zh) | 2010-08-25 |
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