FR2608675A1 - Device for controlling rotational drive, particularly for a combustion engine variable timing - Google Patents

Device for controlling rotational drive, particularly for a combustion engine variable timing Download PDF

Info

Publication number
FR2608675A1
FR2608675A1 FR8618062A FR8618062A FR2608675A1 FR 2608675 A1 FR2608675 A1 FR 2608675A1 FR 8618062 A FR8618062 A FR 8618062A FR 8618062 A FR8618062 A FR 8618062A FR 2608675 A1 FR2608675 A1 FR 2608675A1
Authority
FR
France
Prior art keywords
electric motor
shaft
crankshaft
speed
combustion engine
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.)
Pending
Application number
FR8618062A
Other languages
French (fr)
Inventor
Thierry Mingers
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.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Regie Nationale des Usines Renault
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 Renault SAS, Regie Nationale des Usines Renault filed Critical Renault SAS
Priority to FR8618062A priority Critical patent/FR2608675A1/en
Publication of FR2608675A1 publication Critical patent/FR2608675A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/356—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear making the angular relationship oscillate, e.g. non-homokinetic drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Device for controlling rotational drive of a receiving shaft at a speed which is synchronous or asynchronous with respect to that of a drive shaft, which comprises an electric motor 4 associated with a computer 3 and capable of being disengaged mechanically from this drive shaft. Application to the variable timing of a combustion engine.

Description

DISPOSITIF DE COMMANDE D'ENTRAINEMENT EN ROTATION, NOTAI*FN'. POUF:
UNF DISTRIBUTION VARIABLE DE TEUR THERMIQUE.ROTATION DRIVE CONTROL DEVICE, NOTAI * FN '. POUF:
A VARIABLE DISTRIBUTION OF THERMAL DYE.

La présente invention se rapporte à un dispositif électrique, permettant d'entrainer en rotation un arbre à une vitesse que l'on définit synchrone ou asynchrone par rapport à la vitesse de rotation d'un autre élément, en fonction d'évènements pré-programmés.The present invention relates to an electrical device, making it possible to rotate a shaft at a speed which is defined as synchronous or asynchronous with respect to the speed of rotation of another element, as a function of pre-programmed events. .

Ce dispositif est applicable à la distribution variable d'un moteur thermique (distribution par arbre à cames et soupapes ou distribution par boisseau rotatif).This device is applicable to the variable distribution of a heat engine (distribution by camshaft and valves or distribution by rotary valve).

Les dispositifs de distribution classiques (arbre à cames et soupapes ou boisseau rctatif) sont entrainés mécaniquement en rotation par le vilebrequin à ue vitesse moitié et totalement synchrone de celui-ci, quel que soient le régime et la charge du moteur thermique.Conventional distribution devices (camshaft and valves or rotary valve) are mechanically rotated by the crankshaft at half speed and completely synchronous with it, whatever the speed and the load of the engine.

Ceci a pour inconvénient de ne pouvoir moduler les temps d'admission et d échappement en fonction du régime et de la charge afin d'obt.e- nir l'écoulement optimal en phase gazeuse du combustible et donc la combustion idéale assurant le rejet minimal d'éléments polluants, d'où la nécessité de disposer d'une distributiol variable.This has the drawback of not being able to modulate the intake and exhaust times as a function of the speed and the load in order to obtain the optimum flow in the gas phase of the fuel and therefore the ideal combustion ensuring minimal rejection. pollutants, hence the need for a variable distributiol.

On peut trouver actuellement des dispositifs mécaniques ou hydrome' caniques permettant une faible modification des calages de la distribution ; ils donnent lieu toutefois à des solutions complexes.We can currently find mechanical or hydromechanical devices allowing a slight modification of the timing of the distribution; however, they give rise to complex solutions.

L'invention propose, au contraire, un dispositif électrique entraînant la distribution et désolidarisabie mécaniquement du vilebrequin, qui permettra de faire varier les temps d'ouverture et donc les débits de gaz à l'admission, favorisant ainsi la combstion et permettant à tout instant adopter le calage idéal de la distribution. The invention proposes, on the contrary, an electrical device driving the distribution and mechanically separating the crankshaft, which will make it possible to vary the opening times and therefore the gas flow rates at the intake, thus promoting combstion and allowing at any time adopt the ideal timing of the distribution.

L'invention sera maintenant décrite, à titre d'exemple non limitatif au regard des figures 1, 2 et 3 qui se rapportent respectivement : - La figure 1, à un schéma de l'entrainement d'une distribution
par arbre à cames et soupapes - la figure 2, à un schéma de l'entralnement d'une distribution
par boisseau rotatif.The invention will now be described, by way of nonlimiting example with regard to FIGS. 1, 2 and 3 which relate respectively: - FIG. 1, to a diagram of the drive of a distribution
by camshaft and valves - figure 2, to a diagram of the centering of a distribution
by rotary valve.

- la figure 3, à une variante de ces deux schémas.- Figure 3, a variant of these two diagrams.

Comme l'illustre la figure 1, la vitesse de rotation d'un vilebrequin 1 est mesurée par un capteur 2, par exemple un capteur à effet de Hall. Ce dernier transmet les informations à un calculateur embarqué 3 qui assure le synchronisme par cycles entre le vilebrequin 1 et la distribution, d'une part, et également la modulation de l'accélération d'un moteur électrique 4 en fonction d'autres paramètres, par exemple l'angle du papillon des gaz, d'autre part.As illustrated in FIG. 1, the rotational speed of a crankshaft 1 is measured by a sensor 2, for example a Hall effect sensor. The latter transmits the information to an on-board computer 3 which ensures synchronism in cycles between the crankshaft 1 and the distribution, on the one hand, and also the modulation of the acceleration of an electric motor 4 as a function of other parameters, for example the angle of the throttle valve, on the other hand.

Le moteur électrique 4 dont le stator est fixé à une culasse entraîne un arbre à cames 5 avec une accélération modulée, ce qui a pour conséquence de modifier les instants e. les durées d'ouverture des soupapes 6 ; on obtient ainsi une distribution variable.The electric motor 4, the stator of which is fixed to a cylinder head, drives a camshaft 5 with modulated acceleration, which has the consequence of modifying the instants e. the opening times of the valves 6; a variable distribution is thus obtained.

Une variante est illustrée sur la figure 2 où un boisseau rotatif 7 remplace l'arbre à cames 5 et les soupapes 6.A variant is illustrated in FIG. 2 where a rotary plug 7 replaces the camshaft 5 and the valves 6.

Une deuxième variante applicable aux deux principes de distribution est schématisée sur la figure 3.A second variant applicable to the two distribution principles is shown diagrammatically in FIG. 3.

Le vilebrequin 1 entraîne cette fois une poulie 8 qui lui est rigidement liée. Au moyen d'une courroie crantée 9, la poulie 8 entraine une poulie 10 rigidement liée au moteur électrique 4. Ce dernier, lorsqu'il n'agit pas, transmet intégralement la vitesse de rota tion de 3e poulie 10 à l'arbre à cames 5. En fonction d'un certain nombre de paramètres, le calculateur 3 peut commander un déplacement angulaire du rotor du moteur électrique 4, ceci se traduisant par un décalage de la distribution ; on obtient ainsi une distribution variable. The crankshaft 1 this time drives a pulley 8 which is rigidly linked to it. By means of a toothed belt 9, the pulley 8 drives a pulley 10 rigidly connected to the electric motor 4. The latter, when it does not act, transmits the speed of rotation of the 3rd pulley 10 to the shaft to cams 5. Depending on a certain number of parameters, the computer 3 can control an angular displacement of the rotor of the electric motor 4, this resulting in a shift in the distribution; a variable distribution is thus obtained.

Claims (4)

REVENDICATIONS.CLAIMS. 1. Dispositif de commande d'entraînement en rotation, destiné notamment à une distribution variable d'un moteur thermique, du type assurant l'entraînement en rotation d'un arbre récepteur à une vitesse synchrone ou asynchrone par rapport à celle d'un arbre moteur, caractérisé en ce qu'il comprend un moteur électrique (4) associé à un calculateur (3) et désolidarisable mécaniquement de cet arbre moteur.1. A rotary drive control device, intended in particular for variable distribution of a heat engine, of the type ensuring the rotary drive of a receiving shaft at a synchronous or asynchronous speed relative to that of a shaft. motor, characterized in that it comprises an electric motor (4) associated with a computer (3) and mechanically separable from this motor shaft. 2. Dispositif suivant la revendication 1, caractérisé en ce qu'un capteur (2) mesure la vitesse de rotation d'un vilebrequin (1) et transmet les informations au calculateur (3) qui pilote le moteur électrique (4) entraînant un arbre à cames (5) et des soupapes (6) avec une accélération modulée.2. Device according to claim 1, characterized in that a sensor (2) measures the speed of rotation of a crankshaft (1) and transmits the information to the computer (3) which controls the electric motor (4) driving a shaft cam (5) and valves (6) with modulated acceleration. 3. Dispositif suivant la revendication 1, caractérisé en ce qu'un capteur (2) mesure la vitesse de rotation d'un vilebrequin (1) et transmet les informations au calculateur (3) qui pilote le moteur électrique (4) entraînant un boisseau rotatif (7) avec une accélération modulée.3. Device according to claim 1, characterized in that a sensor (2) measures the speed of rotation of a crankshaft (1) and transmits the information to the computer (3) which controls the electric motor (4) driving a bushel rotary (7) with modulated acceleration. 4. Dispositif suivant la revendication 1,4. Device according to claim 1, caractérisé en ce que le moteur électrique (4) est rigidement lié à une poulie (10) entraînée au moyen d'une courroie crantée (9) par une poulie (8) rigidement liée au vilebrequin (1).  characterized in that the electric motor (4) is rigidly linked to a pulley (10) driven by means of a toothed belt (9) by a pulley (8) rigidly linked to the crankshaft (1).
FR8618062A 1986-12-23 1986-12-23 Device for controlling rotational drive, particularly for a combustion engine variable timing Pending FR2608675A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8618062A FR2608675A1 (en) 1986-12-23 1986-12-23 Device for controlling rotational drive, particularly for a combustion engine variable timing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8618062A FR2608675A1 (en) 1986-12-23 1986-12-23 Device for controlling rotational drive, particularly for a combustion engine variable timing

Publications (1)

Publication Number Publication Date
FR2608675A1 true FR2608675A1 (en) 1988-06-24

Family

ID=9342224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8618062A Pending FR2608675A1 (en) 1986-12-23 1986-12-23 Device for controlling rotational drive, particularly for a combustion engine variable timing

Country Status (1)

Country Link
FR (1) FR2608675A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603929A1 (en) * 1992-12-22 1994-06-29 General Motors Corporation Method and apparatus for electrically driving engine valves
US5331931A (en) * 1986-09-02 1994-07-26 Blish Nelson A Variable intake valve
WO1999035376A1 (en) * 1998-01-09 1999-07-15 Siemens Automotive Corporation Engine valve actuation control system
FR2808838A1 (en) * 2000-05-12 2001-11-16 Jacques Clausin Control of fuel injection valves of an automotive IC engine, uses electromagnetic clutching and a drive shaft
WO2003016683A1 (en) * 2001-08-17 2003-02-27 Bayerische Motoren Werke Aktiengesellschaft Rotary actuator device for controlling the stroke of a gas-shuttle poppet valve in the cylinder head of an internal combustion engine
EP1445430A1 (en) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Valve gear for an internal combustion engine
FR2858831A1 (en) * 2003-08-06 2005-02-18 Toyota Motor Co Ltd SYSTEM AND METHOD FOR CONTROLLING VALVES FOR INTERNAL COMBUSTION ENGINE, AND DEVICE FOR GENERATING POWER
FR2860265A1 (en) * 2003-09-30 2005-04-01 Jean Pierre Christian Choplet Fuel consumption reducing and operational safety increasing device for thermal engine, optimizes output of cylinder by individual adjustment of cam, where orientation of cam operation is made perpendicular to those of existing shafts
FR2863303A1 (en) * 2003-12-08 2005-06-10 Toyota Motor Co Ltd VALVE CONTROL MEMBER OF AN INTERNAL COMBUSTION ENGINE
WO2005059319A1 (en) * 2003-12-17 2005-06-30 Toyota Jidosha Kabushiki Kaisha Valve gear of internal combustion engine
WO2005061863A1 (en) * 2003-12-12 2005-07-07 Bayerische Motoren Werke Aktiengesellschaft Electrical valve actuating device comprising a rotary actuator
EP1788201A1 (en) * 2005-11-16 2007-05-23 Delphi Technologies, Inc. Cam drive apparatus and method
GB2447034A (en) * 2007-02-28 2008-09-03 Dakota Ltd Gibraltar Camshaft Drive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1478488A (en) * 1975-01-15 1977-06-29 British Leyland Uk Ltd Reiciprocating piston internal combustion engine with rotary valve member
DE3305059A1 (en) * 1982-03-24 1983-10-06 Toyota Motor Co Ltd DEVICE FOR CHANGING THE TIMED VALVE DRAIN IN AN INTERNAL COMBUSTION ENGINE
JPS61108817A (en) * 1984-11-02 1986-05-27 Mitsubishi Electric Corp Control device for opening and closing valve in internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1478488A (en) * 1975-01-15 1977-06-29 British Leyland Uk Ltd Reiciprocating piston internal combustion engine with rotary valve member
DE3305059A1 (en) * 1982-03-24 1983-10-06 Toyota Motor Co Ltd DEVICE FOR CHANGING THE TIMED VALVE DRAIN IN AN INTERNAL COMBUSTION ENGINE
JPS61108817A (en) * 1984-11-02 1986-05-27 Mitsubishi Electric Corp Control device for opening and closing valve in internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 295 (M-523)[2351], 7 octobre 1986; & JP-A-61 108 817 (MITSUBISHI ELECTRIC CORP.) 27-05-1986 *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331931A (en) * 1986-09-02 1994-07-26 Blish Nelson A Variable intake valve
EP0603929A1 (en) * 1992-12-22 1994-06-29 General Motors Corporation Method and apparatus for electrically driving engine valves
US5327856A (en) * 1992-12-22 1994-07-12 General Motors Corporation Method and apparatus for electrically driving engine valves
US5494007A (en) * 1992-12-22 1996-02-27 General Motors Corporation Method and apparatus for electrically driving engine valves
US5598814A (en) * 1992-12-22 1997-02-04 General Motors Corporation Method and apparatus for electrically driving engine valves
WO1999035376A1 (en) * 1998-01-09 1999-07-15 Siemens Automotive Corporation Engine valve actuation control system
FR2808838A1 (en) * 2000-05-12 2001-11-16 Jacques Clausin Control of fuel injection valves of an automotive IC engine, uses electromagnetic clutching and a drive shaft
WO2003016683A1 (en) * 2001-08-17 2003-02-27 Bayerische Motoren Werke Aktiengesellschaft Rotary actuator device for controlling the stroke of a gas-shuttle poppet valve in the cylinder head of an internal combustion engine
US7055475B2 (en) 2001-08-17 2006-06-06 Bayerische Motoren Werke Ag Rotary actuator device to control the stroke of a charge exchange poppet valve in the cylinder head of an internal combustion engine
CN1325772C (en) * 2001-08-17 2007-07-11 宝马股份公司 Rotary actuator device for controlling the stroke of a gas-shuttle poppet valve in the cylinder head of an internal combustion engine
EP1445430A1 (en) * 2003-02-04 2004-08-11 Bayerische Motoren Werke Aktiengesellschaft Valve gear for an internal combustion engine
FR2858831A1 (en) * 2003-08-06 2005-02-18 Toyota Motor Co Ltd SYSTEM AND METHOD FOR CONTROLLING VALVES FOR INTERNAL COMBUSTION ENGINE, AND DEVICE FOR GENERATING POWER
DE102004038130B4 (en) * 2003-08-06 2010-11-11 Toyota Jidosha Kabushiki Kaisha, Toyota-shi Valve drive system and method for an internal combustion engine and power output device
US7082911B2 (en) 2003-08-06 2006-08-01 Toyota Jidosha Kabushiki Kaisha Valve-driving system and method for internal combustion engine, and power output apparatus
FR2860265A1 (en) * 2003-09-30 2005-04-01 Jean Pierre Christian Choplet Fuel consumption reducing and operational safety increasing device for thermal engine, optimizes output of cylinder by individual adjustment of cam, where orientation of cam operation is made perpendicular to those of existing shafts
US7055480B2 (en) 2003-12-08 2006-06-06 Toyota Jidosha Kabushiki Kaisha Valve gear of internal combustion engine
FR2863303A1 (en) * 2003-12-08 2005-06-10 Toyota Motor Co Ltd VALVE CONTROL MEMBER OF AN INTERNAL COMBUSTION ENGINE
WO2005061863A1 (en) * 2003-12-12 2005-07-07 Bayerische Motoren Werke Aktiengesellschaft Electrical valve actuating device comprising a rotary actuator
US7367300B2 (en) 2003-12-12 2008-05-06 Bayerische Motoren Werke Aktiengesellschaft Electric valve drive with a rotating actuator
WO2005059319A1 (en) * 2003-12-17 2005-06-30 Toyota Jidosha Kabushiki Kaisha Valve gear of internal combustion engine
US7513231B2 (en) 2003-12-17 2009-04-07 Toyota Jidosha Kabushiki Kaisha Valve gear of internal combustion engine
EP1788201A1 (en) * 2005-11-16 2007-05-23 Delphi Technologies, Inc. Cam drive apparatus and method
GB2447034A (en) * 2007-02-28 2008-09-03 Dakota Ltd Gibraltar Camshaft Drive

Similar Documents

Publication Publication Date Title
FR2608675A1 (en) Device for controlling rotational drive, particularly for a combustion engine variable timing
US5331931A (en) Variable intake valve
FR2426152A1 (en) COMPOUND CAMSHAFT, IN PARTICULAR OF INTERNAL COMBUSTION ENGINE
EP0052554B1 (en) Variable distribution device for an internal-combustion engine
FR2453979A1 (en) VALVE CONTROL MECHANISM FOR INTERNAL COMBUSTION ENGINES
EP1128028A3 (en) Valve timing control device
FR2505402A1 (en) EXHAUST GAS RECIRCULATION CONTROL DEVICE WITH AUTOMATIC CORRECTION FUNCTION OF ZERO OPENING VALUE DETECTED FROM THE EXHAUST GAS RECIRCULATION VALVE
EP0628132B1 (en) Variable timing gear device
FR2616481A1 (en) Internal combustion engine electronic valve-control device and methods of implementation
EP0457757A1 (en) Device for varying the angular relationship between the crankshaft and the camshaft of an internal combustion engine.
US5349929A (en) Valve controller for controlling the suction valve of an internal-combustion engine
FR2364329A1 (en) DECOMPRESSION DEVICE FOR MOPED ENGINES
FR2454531A1 (en) COMPRESSED AIR STARTING SYSTEM, ESPECIALLY FOR A DIESEL ENGINE
JP2001248410A (en) Continuous variable control device of valve switching phase of engine valve system
KR20110104009A (en) Compact electric cam phaser
JP3329933B2 (en) Variable valve timing device
JPH08177695A (en) Ignition timing control device for engine
JPS59183009A (en) Valve timing variable device for 4-cycle engine
JPH04148023A (en) Intake air control device for vehicle engine
JPH0549804B2 (en)
ES8501482A1 (en) Engine camshaft drive mechanism.
JPS59183010A (en) Variable valve timing device for 4-cycle engine
KR20010059127A (en) Variable valve timing device
JPS6193217A (en) Variable valve unit of four-cycle engine
JPS6196112A (en) Device for altering valve timing in 4-cycle engine