EP2160507A2 - Dispositif electrohydraulique de pilotage en boucle fermee du verin de commande d'un moteur a taux de compression variable - Google Patents
Dispositif electrohydraulique de pilotage en boucle fermee du verin de commande d'un moteur a taux de compression variableInfo
- Publication number
- EP2160507A2 EP2160507A2 EP08805484A EP08805484A EP2160507A2 EP 2160507 A2 EP2160507 A2 EP 2160507A2 EP 08805484 A EP08805484 A EP 08805484A EP 08805484 A EP08805484 A EP 08805484A EP 2160507 A2 EP2160507 A2 EP 2160507A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- compression ratio
- control
- variable compression
- cylinder
- controlling
- 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
- 230000006835 compression Effects 0.000 title claims abstract description 105
- 238000007906 compression Methods 0.000 title claims abstract description 105
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 238000007872 degassing Methods 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 description 14
- 230000005540 biological transmission Effects 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000009347 mechanical transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
-
- 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
- F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/048—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable crank stroke length
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
Definitions
- the subject of the present invention is an electrohydraulic closed-loop control device of the control cylinder of a variable compression ratio engine comprising at least one hydraulic transfer valve and a control rack position sensor.
- the mechanical transmission device for variable compression ratio engine comprises a piston secured in its lower part of a transmission member cooperating on the one hand with a device rolling guide, and secondly with a toothed wheel secured to a connecting rod for transmitting the movement between said piston and said connecting rod.
- the mechanical transmission device for variable compression ratio engine comprises at least one cylinder in which moves a piston which is secured in its lower part, an organ transmission cooperating on the one hand by means of a small rack with a rolling guide device, and on the other hand by means of another rack of large dimension with a toothed wheel secured to a connecting rod.
- Said mechanical transmission device for variable compression ratio engine also comprises at least one control rack cooperating with the gear wheel, means for fixing the piston on the transmission member which provide a clamping preload, connecting means which make it possible to stiffen the teeth of the racks, and means for reinforcing and lightening the structure of the toothed wheel.
- control cylinder comprises a hydraulic fluid inlet under pressure designed to compensate for any leaks from said control cylinder, and to ensure a pre-charge pressure to increase the pressure. accuracy of keeping the setpoint in the vertical position of said control cylinder by reducing the effects of the compressibility of the oil while avoiding any cavitation phenomenon.
- a single electric motor can control the compression ratio of several cylinders via a camshaft or eccentric shaft.
- the adjustment of the initial compression ratio of each cylinder can be carried out by means of an independent adjustment device which can be a thread that is stopped in rotation.
- the electrohydraulic closed-loop control device of the control cylinder according to the invention makes it possible to solve a set of problems related to the control of the control cylinder (s) of the variable compression ratio engine:
- valves and their springs and the control rod involve providing a large diameter for the control cylinder, these components being housed at the periphery of the piston of said cylinder. This lowers the operating pressure and responsiveness of the control cylinder, increases the flow rates of hydraulic fluid between upper and lower chambers, and increases the bulk and weight of the entire control cylinder.
- the control of the compression ratio common to all the cylinders of the variable compression ratio engine involves transmission means between an electric motor for controlling the compression ratio and the control rods of each cylinder of the engine to variable compression ratio, as well as adjustment means specific to each cylinder. These bodies increase the size, weight and cost of the variable compression ratio engine.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine comprises at least one solenoid valve that can open or close at least one hydraulic fluid duct between the upper and lower chambers of a control cylinder at least one position sensor of a control rack, an angular position sensor of the engine crankshaft for adjusting the compression ratio and at least one computer.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine comprises a duct between the upper and lower chamber of the control jack which is arranged in the piston of said jack.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine comprises a duct between the upper and lower chamber of the control cylinder which is arranged in the crankcase of the engine with a variable compression ratio.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine according to the present invention comprises an upper chamber and a lower chamber of the control cylinder which are respectively supplied with pressurized hydraulic fluid from a hydraulic power unit by two feed-back check valves which open respectively into each of the two chambers and which allow the hydraulic fluid to enter the said chambers while prohibiting the exit.
- the electro-hydraulic device for controlling the compression ratio of a variable compression ratio engine according to the present invention cooperates with a knock detector in order to independently adjust the compression ratio of each cylinder of the engine according to its own physical characteristics.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine comprises a degassing solenoid valve enabling the upper chamber of the control cylinder to be connected to the engine oil sump.
- the electrohydraulic device for controlling the compression ratio of a variable compression ratio engine comprises a two-way solenoid valve having no non-return valve.
- FIG. 1 is a diagrammatic sectional view illustrating the main components and their positioning in the variable compression ratio motor of the electrohydraulic device according to the invention and according to a first embodiment which comprises two independent solenoid valves each placed on a circuit provided with a check valve, said solenoid valves cooperating with a position sensor of the control rack and a computer.
- FIG. 2 is a diagrammatic sectional view illustrating the main components and their positioning in the variable compression ratio motor of the electrohydraulic device according to the invention and according to a second variant embodiment which comprises a single solenoid valve comprising a two-way electrical slide inputs and two separate outputs defining two independent circuits each provided with a non-return valve, said solenoid valve cooperating with a position sensor of the control rack and a computer.
- a single solenoid valve comprising a two-way electrical slide inputs and two separate outputs defining two independent circuits each provided with a non-return valve, said solenoid valve cooperating with a position sensor of the control rack and a computer.
- FIG. 3 is a diagrammatic sectional view illustrating the main components and their positioning in the variable compression ratio motor of the electrohydraulic device according to the invention and according to a third variant embodiment which comprises a single solenoid valve cooperating with a position sensor of the control rack, an angular position sensor of the crankshaft of the variable compression ratio engine, and a calculator.
- FIGS. 1 to 3 show an electrohydraulic closed loop control device 80 of the control cylinder 8 of a variable compression ratio engine according to the present invention.
- the variable compression ratio engine comprises a mechanical transmission device 1 comprising in the lower part of the piston 2 a transmission member 3 integral with said piston and co-operating, of a part with a rolling guide device 4, and secondly with a gear wheel 5.
- the toothed wheel 5 cooperates with a connecting rod 6 connected to a crankshaft 9 in order to carry out the transmission of the movement between the piston 2 and said crankshaft 9.
- the toothed wheel 5 cooperates opposite the transmission member 3 with a control rack 7 whose vertical position relative to the cylinder block 100 is controlled by a control device 12 comprising the control cylinder 8, whose piston cylinder 13 is guided in a cylinder cylinder 112 arranged in the cylinder block 100.
- the control cylinder 8 comprises above an actuator cylinder 13 an upper chamber 121 and a lower chamber 122.
- the actuating cylinder 8 consists of an upper cylinder rod 10, a lower piston rod 16 cooperating with the jack piston 13.
- the upper cylinder rod 10 of the control cylinder 8 cooperates in its extension and in a sealed manner with a chamber 184 arranged in the cylinder head 300 of the variable compression ratio engine.
- the upper cylinder rod 10 may comprise in its inner part and at its center a check valve 185, the inlet of which is in communication with the chamber 184 arranged in the cylinder head 300 of the control cylinder 8, while the output of said booster check valve 185 is connected to a duct 187, formed in the jack piston 13 of the control jack 8 and opening into the lower chamber 122.
- the chamber 184 arranged in the cylinder head 300 is connected via a conduit to another booster check valve 188 housed in said cylinder head and communicating with the upper chamber 121 of the control cylinder 8.
- the upper chamber 121 and the lower chamber 122 of the control jack 8 are respectively fed with hydraulic fluid under pressure from a hydraulic unit by the two feed-back valves 185, 188 which open respectively into each of the two chambers 121, 122 and which allow the hydraulic fluid to enter the said rooms while prohibiting the exit.
- the transmission member 3 integral with the piston 2 is provided on one of its faces with a first large-sized rack 35 whose teeth 34 cooperate with those 51 of the toothed wheel 5.
- the transmission member 3 comprises, opposite the first rack 35, a second rack 37 whose teeth 38 of small dimensions cooperate with those of a roller 40 of the rolling guide device 4.
- crankcase 100 is secured to a support 41 comprising racks 46 ensuring the synchronization of the displacement of the roller 40 of the rolling guide device 4 with that of the piston 2.
- the electrohydraulic control device 80 of the compression ratio of the variable compression ratio engine comprises at least one solenoid valve 81 by control cylinder 8 that can open or close at least one conduit 83 of hydraulic fluid between the upper chamber 122 and lower 121 of said cylinder order 8.
- the electro-hydraulic control device 80 comprises in the cylinder head 300 and at each control cylinder 8 at least one position sensor 82 making it possible to determine, using at least one computer 84, the position of the control rack 7.
- the electrohydraulic device for controlling the compression ratio 80 of a variable compression ratio engine comprises a duct 83 between the upper chamber 121 and lower 122 of the control jack 8 which is arranged in the jack piston 13 of said control cylinder 8 .
- conduit 83 between the upper chamber 121 and lower 122 of the control cylinder 8 can be arranged in the crankcase 100 of the variable compression ratio engine.
- the electrohydraulic device 80 for controlling the compression ratio of a variable compression ratio engine comprises two solenoid valves 81 with an inlet and an outlet each of which can open or close the duct 83 connecting the upper chamber 121 to the lower chamber 122 of the cylinder. control 8, as illustrated in FIG.
- Each solenoid valve 81 comprises a non-return valve 85, 86 so that the non-return valve 85 of the first solenoid valve 81 prevents the hydraulic fluid from going from the upper chamber 121 to the lower chamber 122 of the control cylinder 8 but not the reverse, while the check valve 86 of the second solenoid valve 81 prohibits the hydraulic fluid to go from the lower chamber 122 to the upper chamber 121 of the control cylinder 8 but not vice versa.
- FIG. 2 illustrates a second variant of the electrohydraulic device 80 for controlling the compression ratio of a variable compression ratio engine which comprises a solenoid valve 81 comprising two inlets and two outlets which define two independent circuits, and a drawer three positions 87 allowing to connect the first input to the first output the second input being closed, either to connect the second input to the second output the first input being closed, or to close the two inputs.
- a solenoid valve 81 comprising two inlets and two outlets which define two independent circuits
- a drawer three positions 87 allowing to connect the first input to the first output the second input being closed, either to connect the second input to the second output the first input being closed, or to close the two inputs.
- the electrically operated solenoid valve 81 with slide 81 has two check valves 85, 86, the first check valve 85 prohibiting the hydraulic fluid from going from the upper chamber 121 to the lower chamber 121. of the control cylinder 8 but not vice versa, while the second non-return valve 86 prohibits the hydraulic fluid to go from the lower chamber 122 to the upper chamber 121 of the control cylinder 8 but not vice versa.
- FIG. 3 shows a third variant of the electrohydraulic device 80 for controlling the compression ratio of a variable compression ratio engine which consists of a single solenoid valve 81 able to open or close at least one hydraulic fluid conduit 83 between the upper chamber 121 and lower 122 of a control cylinder 8.
- the solenoid valve 81 is in two directions, has no check valve and can be controlled in a cyclic opening ratio.
- the two-way solenoid valve 81 cooperates with an angular position sensor 88 of the crankshaft 9 of the engine to adjust the compression ratio, in addition to the position sensor 82 of the control rack 7 and the computer 84.
- the two-way solenoid valve 81 comprises two parallel channels, one closed by a slow-speed, high-volume shutter device, the other closed by a fast-response, low-flow shutter device.
- the electrohydraulic device 80 for controlling the compression ratio of the variable compression ratio engine can cooperate with a knock detector, not shown, in order to independently adjust the compression ratio of each cylinder 110 of the engine as a function of its own physical characteristics.
- the electrohydraulic device 80 for controlling the compression ratio of a variable compression ratio engine comprises a degassing solenoid valve, not shown, for connecting the upper chamber 121 of the control cylinder 8 with the oil sump. of the motor.
- the opening of the electrovalve 81 for reducing the compression ratio is controlled by the calculator 84.
- control rack 7 Taking into account the forces applied to the control rack 7, and the ratchet effect produced by the non-return valve 86 placed on the same conduit 83 that the solenoid valve 81 kept open, said control rack 7 will move in one or more times until the position sensor 82 of said control rack 7 indicates to the computer 84 that the position of said control rack 7 corresponds to the desired compression ratio.
- the operation is identical when it comes to raising the compression ratio of the engine, but then involves the opening of the other solenoid valve 81 for increasing the compression ratio, cooperating with the nonreturn valve 85.
- the position sensor 82 of the control rack 7 will inform the computer 84 of the progressive drift of the position of the control rack 7.
- the computer 84 will open either the solenoid valve 81 for reducing the compression ratio or the solenoid valve 81 for increasing the compression rate. compression to restore the set position of said control rack 7.
- the second variant embodiment shown in FIG. 2 operates according to the same principle as that previously described in FIG. 1, with the difference that the functions of the separate solenoid valves 81 are in this case provided by a single solenoid valve 81 having an electrically operated slide 87 with two inputs and two outputs.
- a single solenoid valve 81 with two directions is provided, said solenoid valve being able to open and close fast enough to allow the control rack 7 to move only for a few degrees of angular displacement of the crankshaft 9.
- the computer 84 includes in its memory the angular position ranges of the crankshaft 9 during which the force applied to the control rack 7 is in the direction of increasing or reducing the compression when the conduit connecting the upper chamber 121 and lower 122 of the control cylinder 8 is open.
- the mapping of the direction of the force applied to the control rack 7 that integrates the computer 84 covers the entire range of speed and operating load of the variable compression ratio engine.
- the computer 84 controls the opening of the two-way solenoid valve 81 only when the angular position of the crankshaft 9 coincides with a force applied to the control rack 7 which goes in the direction of reducing the compression ratio.
- the computer 84 controls the opening of the two-way solenoid valve 81 only when the angular position of the crankshaft 9 coincides with a force applied to the rack command 7 which goes in the direction of increasing the compression ratio.
Landscapes
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0702732A FR2914951B1 (fr) | 2007-04-16 | 2007-04-16 | Dispositif electrohydraulique de pilotage en boucle fermee du verin de commande d'un moteur a taux de compression variable. |
US90777607P | 2007-04-17 | 2007-04-17 | |
PCT/FR2008/000529 WO2008148948A2 (fr) | 2007-04-16 | 2008-04-16 | Dispositif electrohydraulique de pilotage en boucle fermee du verin de commande d'un moteur a taux de compression variable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2160507A2 true EP2160507A2 (fr) | 2010-03-10 |
EP2160507B1 EP2160507B1 (fr) | 2016-04-13 |
Family
ID=38814520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08805484.6A Active EP2160507B1 (fr) | 2007-04-16 | 2008-04-16 | Dispositif électrohydraulique de pilotage en boucle fermée du verin de commande d'un moteur a taux de compression variable |
Country Status (10)
Country | Link |
---|---|
US (2) | US8875671B2 (fr) |
EP (1) | EP2160507B1 (fr) |
JP (1) | JP5111602B2 (fr) |
KR (1) | KR101387772B1 (fr) |
CN (1) | CN101688473B (fr) |
AU (1) | AU2008259733B2 (fr) |
CA (1) | CA2681616C (fr) |
ES (1) | ES2570764T3 (fr) |
FR (1) | FR2914951B1 (fr) |
WO (1) | WO2008148948A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018100529A1 (de) | 2018-01-11 | 2019-07-11 | Schaeffler Technologies AG & Co. KG | Aktorik zur variablen Einstellung der Kompression in einer Brennkraftmaschine |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2969705B1 (fr) * | 2010-12-23 | 2014-04-04 | Vianney Rabhi | Vanne tubulaire de commande d'un moteur a rapport volumetrique variable |
FR2984399B1 (fr) * | 2011-12-16 | 2014-01-31 | MCE 5 Development | Piste de roulement a fixation par clip pour moteur a taux de compression variable |
JP5240374B2 (ja) * | 2012-02-27 | 2013-07-17 | トヨタ自動車株式会社 | 内燃機関 |
DE112013005522T5 (de) * | 2012-12-21 | 2015-08-13 | Borgwarner Inc. | Kolbensystem mit variablem Verdichtungsverhältnis |
CN104500270B (zh) * | 2014-12-09 | 2016-07-06 | 南京理工大学 | 电动旋转滑盘阀式固体火箭冲压发动机燃气流量调节装置 |
FR3029977B1 (fr) | 2014-12-12 | 2018-11-30 | MCE 5 Development | Dispositif de transmission d'un moteur, notamment pour un moteur a taux de compression et/ou a cylindree variable. |
FR3030010B1 (fr) | 2014-12-15 | 2018-02-09 | MCE 5 Development | Electrovanne comprenant deux circuits fluidiques independants et etanches, commandes par un actionneur electromagnetique unique, et moteur comprenant une telle electrovanne |
DE102015203378A1 (de) * | 2015-02-25 | 2016-08-25 | Fev Gmbh | Verbrennungskraftmaschine mit einstellbarem variablen Verdichtungsverhältnis und einem Schaltmodul |
DE102016201035A1 (de) | 2016-01-26 | 2017-07-27 | Schaeffler Technologies AG & Co. KG | Hubkolbenbrennkraftmaschine mit veränderlichem Verdichtungsverhältnis |
FR3063307B1 (fr) * | 2017-02-28 | 2019-03-29 | MCE 5 Development | Dispositif presseur pour exercer un effort de maintien sur un dispositif de transmission et moteur muni d’un tel dispositif. |
FR3063518B1 (fr) | 2017-03-01 | 2022-01-07 | MCE 5 Development | Dispositif pour piloter le taux de compression d’un moteur a rapport volumetrique variable comprenant une electrovanne a double sens pourvue d’un circuit secondaire de re-gavage en fluide |
FR3063519B1 (fr) * | 2017-03-01 | 2019-03-29 | MCE 5 Development | Dispositif pour piloter le taux de compression d’un moteur a rapport volumetrique variable comprenant une electrovanne a double sens presentant une fuite permanente maitrisee |
CN108019287B (zh) * | 2017-12-15 | 2020-07-03 | 东风汽车集团有限公司 | 一种可变压缩比发动机的缸体缸盖与顶盖组件 |
KR102575172B1 (ko) * | 2018-04-06 | 2023-09-05 | 현대자동차 주식회사 | 가변 압축비 엔진의 제어 장치 및 방법 |
US10614864B1 (en) | 2019-05-13 | 2020-04-07 | Winbond Electronics Corp. | Buffer output circuit, driving method thereof and memory apparatus |
FR3104209B1 (fr) | 2019-12-05 | 2022-06-03 | MCE 5 Development | système hydraulique de commande pour un moteur à taux de compression variable |
CN111878228B (zh) * | 2020-06-28 | 2021-06-11 | 东风汽车集团有限公司 | 可变压缩比发动机 |
CN112177772A (zh) * | 2020-08-26 | 2021-01-05 | 东风汽车集团有限公司 | 活塞防撞击结构及可变压缩比发动机 |
CN113669170B (zh) * | 2021-08-10 | 2023-02-24 | 东风汽车集团股份有限公司 | 一种发动机压缩比调节方法和装置 |
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US2971536A (en) * | 1958-06-26 | 1961-02-14 | Caterpillar Tractor Co | Hydraulic control valve throttling mechanism |
JPS63105244A (ja) * | 1986-10-22 | 1988-05-10 | Toyota Motor Corp | 可変圧縮比内燃機関における圧縮比検出装置 |
JPH0772515B2 (ja) * | 1987-07-30 | 1995-08-02 | トヨタ自動車株式会社 | 可変圧縮比内燃機関の制御装置 |
US5136987A (en) * | 1991-06-24 | 1992-08-11 | Ford Motor Company | Variable displacement and compression ratio piston engine |
FR2763097B1 (fr) * | 1997-05-09 | 1999-09-03 | Vianney Paul Rabhi | Dispositif permettant de controler la position de la cremaillere de commande d'un moteur a cylindree variable |
AT2333U1 (de) * | 1997-08-11 | 1998-08-25 | Avl List Gmbh | Brennkraftmaschine mit fremdzündung |
FR2786530B1 (fr) | 1998-11-26 | 2001-01-19 | Vianney Rabhi | Dispositif de transmission mecanique pour moteur a cylindree variable |
US6443107B1 (en) * | 1999-05-27 | 2002-09-03 | Edward Charles Mendler | Rigid crankshaft cradle and actuator |
JP4236391B2 (ja) * | 2001-04-23 | 2009-03-11 | 株式会社日本自動車部品総合研究所 | 可変圧縮比エンジン |
FR2827634B1 (fr) | 2001-07-18 | 2003-10-03 | Vianney Rabhi | Perfectionnements apportes aux dispositifs de transmission mecanique pour moteur a cylindree variable |
JP4136602B2 (ja) | 2002-10-30 | 2008-08-20 | トヨタ自動車株式会社 | エンジンの圧縮比変更方法と可変圧縮比エンジン |
JP4096700B2 (ja) * | 2002-11-05 | 2008-06-04 | 日産自動車株式会社 | 内燃機関の可変圧縮比装置 |
JP4134821B2 (ja) * | 2003-06-12 | 2008-08-20 | 日産自動車株式会社 | 内燃機関の制御装置 |
JP4204915B2 (ja) | 2003-07-08 | 2009-01-07 | 本田技研工業株式会社 | 可変圧縮比エンジン |
FR2867515B1 (fr) * | 2004-03-11 | 2006-06-02 | Vianney Rabhi | Dispositif de reglage pour moteur a rapport volumetrique variable |
JP4229867B2 (ja) * | 2004-03-31 | 2009-02-25 | 本田技研工業株式会社 | 圧縮比可変機構を備える内燃機関を備える動力装置 |
FR2896544B1 (fr) | 2006-01-26 | 2008-05-02 | Vianney Rabhi | Ensemble culasse et bloc moteur pour moteur a rapport volumetrique variable |
FR2896539B1 (fr) | 2006-01-26 | 2008-05-02 | Vianney Rabhi | Dispositif presseur pour moteur a rapport volumetrique variable. |
FR2896538B1 (fr) | 2006-01-26 | 2008-05-02 | Vianney Rabhi | Dispositif electromecanique de commande d'un moteur a rapport volumetrique variable |
WO2008006042A1 (fr) * | 2006-07-07 | 2008-01-10 | Borgwarner Inc | Procédé de contrôle pour un système d'actionnement à compression variable |
EP1911952B1 (fr) * | 2006-10-11 | 2017-11-22 | Nissan Motor Co., Ltd. | Moteur à combustion interne |
US7827943B2 (en) * | 2008-02-19 | 2010-11-09 | Tonand Brakes Inc | Variable compression ratio system |
-
2007
- 2007-04-16 FR FR0702732A patent/FR2914951B1/fr not_active Expired - Fee Related
-
2008
- 2008-04-16 CN CN200880020059XA patent/CN101688473B/zh active Active
- 2008-04-16 EP EP08805484.6A patent/EP2160507B1/fr active Active
- 2008-04-16 CA CA2681616A patent/CA2681616C/fr not_active Expired - Fee Related
- 2008-04-16 KR KR1020097023672A patent/KR101387772B1/ko active IP Right Grant
- 2008-04-16 AU AU2008259733A patent/AU2008259733B2/en not_active Ceased
- 2008-04-16 US US12/596,378 patent/US8875671B2/en not_active Expired - Fee Related
- 2008-04-16 WO PCT/FR2008/000529 patent/WO2008148948A2/fr active Application Filing
- 2008-04-16 JP JP2010503544A patent/JP5111602B2/ja active Active
- 2008-04-16 ES ES08805484T patent/ES2570764T3/es active Active
-
2014
- 2014-08-01 US US14/449,451 patent/US9376966B2/en active Active
Non-Patent Citations (1)
Title |
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See references of WO2008148948A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018100529A1 (de) | 2018-01-11 | 2019-07-11 | Schaeffler Technologies AG & Co. KG | Aktorik zur variablen Einstellung der Kompression in einer Brennkraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
WO2008148948A2 (fr) | 2008-12-11 |
JP5111602B2 (ja) | 2013-01-09 |
CN101688473A (zh) | 2010-03-31 |
US9376966B2 (en) | 2016-06-28 |
JP2010525207A (ja) | 2010-07-22 |
FR2914951B1 (fr) | 2012-06-15 |
KR101387772B1 (ko) | 2014-04-21 |
CN101688473B (zh) | 2012-01-11 |
CA2681616C (fr) | 2015-10-06 |
ES2570764T3 (es) | 2016-05-20 |
US8875671B2 (en) | 2014-11-04 |
KR20100016505A (ko) | 2010-02-12 |
US20140338641A1 (en) | 2014-11-20 |
AU2008259733A1 (en) | 2008-12-11 |
FR2914951A1 (fr) | 2008-10-17 |
US20100163003A1 (en) | 2010-07-01 |
CA2681616A1 (fr) | 2008-12-11 |
WO2008148948A3 (fr) | 2009-03-19 |
EP2160507B1 (fr) | 2016-04-13 |
AU2008259733B2 (en) | 2011-12-15 |
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