公开(公告)号：EP1897193B1

公开(公告)日：2010-05-19

申请号：EP06726273.3

申请日：2006-03-23

申请人： Renault SAS

发明人： JAFFREZIC, Xavier ,  AGNERAY, André

IPC分类号： H01T13/40 ,  H01T13/50

CPC分类号： H01T13/50 ,  H01T13/40

公开(公告)号：EP2057533A1

公开(公告)日：2009-05-13

申请号：EP07823652.8

申请日：2007-07-27

申请人： Renault SAS

发明人： AGNERAY, André ,  DELORAINE, Franck ,  COUILLAUD, Julien

IPC分类号： G06F7/00 ,  H03K5/00

CPC分类号： G06F7/62 ,  F02P9/007 ,  G06F7/58

摘要： Generator of a pseudoperiodic logic signal of mean period Tmean comprising: a reference clock (5) of period Tref, a logic memory means (6), changing state on receipt of a pulse, a first means (7) for producing a nominal pulse on completion of a base time interval Tsec = K × Tref, with K an integer, a second means (8) of producing a shifted pulse on completion of a modified time interval T'sec = (K ± 1) × Tref, a selector means (10, 12) capable of selecting the means which produces the pulse, in such a way as to regularly include a shifted pulse so as to correct the mean period, in order to generate a pseudoperiodic signal. Application to the driving of a resonator for producing a plasma spark for radiofrequency ignition.

公开(公告)号：EP2002117B1

公开(公告)日：2011-05-11

申请号：EP07731715.4

申请日：2007-03-09

申请人： Renault SAS

发明人： AGNERAY, André ,  NOUVEL, Clément

IPC分类号： F02P17/12 ,  F02P15/08

CPC分类号： F02P17/12 ,  F02P3/01 ,  F02P9/007 ,  F02P15/08 ,  F02P2017/125

摘要： The invention concerns a device for measuring an ionization current of a spark plug of the type with resonant structure, equipping a motor vehicle ignition system, said spark plug (BR) being coupled to a generator (GEN) comprising a regulating capacitor. Said generator further comprises polarizing means (MPOL) for polarizing the spark plug (BR), connected between the generator (GEN) and said spark plug (BR) and means for measuring (MMES) the ionization current of said spark plug (BR), connected between the regulating capacitor (Cb) and the ground.

公开(公告)号：EP2080254A1

公开(公告)日：2009-07-22

申请号：EP07823538.9

申请日：2007-07-03

申请人： Renault SAS

发明人： AGNERAY, André ,  PARIENTE, Marc

IPC分类号： H01T13/44 ,  H01T13/50

CPC分类号： H01T13/44 ,  H01T13/50

摘要： The invention proposes a device (110) comprising two plasma generation electrodes (103, 106), a series resonator having a resonant frequency above 1 MHz and comprising a capacitor (111) provided with two terminals, and an induction coil (112) surrounded by a screen (132), the capacitor and the coil being placed in series, the electrodes being connected to the respective terminals of the capacitor, the device being characterized in that the ratio of the spark plug to the radius of the screen is equal to 0.56. The invention makes it possible to optimize the Q-factor of such a device by adjusting the radius of the coil (112) to that of the screen (132).

公开(公告)号：EP2024627A1

公开(公告)日：2009-02-18

申请号：EP07766086.8

申请日：2007-05-23

申请人： Renault SAS

发明人： NOUVEL, Clément ,  AGNERAY, André

IPC分类号： F02D41/20 ,  F02M69/04 ,  H02H9/00

CPC分类号： F02D41/2096 ,  F02M69/041 ,  H02N2/067

摘要： The invention relates to a device for the electronic control of at least one ultrasound piezoelectric injector driven by a control computer and powered with a DC voltage source, comprising: a first stage of amplifying said DC voltage delivering a high DC voltage signal; a second stage of generating an injector charge current, made up of an inductor connected to a chopping switch and forming an oscillating circuit with each driven injector; a third stage of selecting which injectors to drive, comprising a selection switch in series with each injector; characterized in that the selection third stage comprises, for each injector, a cell for damping the residual energy stored in each said injector at the end of injection command and causing alternating raised voltages at the terminals of said injector, the damping cell containing a resistor. Application to motor vehicles.

摘要翻译： 本发明涉及一种用于电子控制由控制计算机驱动并由DC电压源供电的至少一个超声波压电喷射器的装置，包括：放大所述DC电压的第一级，其输送高直流电压信号; 产生喷射器充电电流的第二阶段，其由连接到斩波开关的电感器构成并与每个驱动的注入器形成振荡电路; 选择哪个喷射器驱动的第三阶段，包括与每个喷射器串联的选择开关; 其特征在于，对于每个喷射器，所述选择第三级包括用于在喷射命令结束时阻尼存储在每个所述喷射器中的剩余能量的单元，并且在所述喷射器的端子处引起交替的升高的电压，所述阻尼单元包含电阻器。 适用于机动车辆。

公开(公告)号：EP2002117A1

公开(公告)日：2008-12-17

申请号：EP07731715.4

申请日：2007-03-09

申请人： Renault SAS

发明人： AGNERAY, André ,  NOUVEL, Clément

IPC分类号： F02P17/12 ,  F02P15/08

CPC分类号： F02P17/12 ,  F02P3/01 ,  F02P9/007 ,  F02P15/08 ,  F02P2017/125

摘要： The invention concerns a device for measuring an ionization current of a spark plug of the type with resonant structure, equipping a motor vehicle ignition system, said spark plug (BR) being coupled to a generator (GEN) comprising a regulating capacitor. Said generator further comprises polarizing means (MPOL) for polarizing the spark plug (BR), connected between the generator (GEN) and said spark plug (BR) and means for measuring (MMES) the ionization current of said spark plug (BR), connected between the regulating capacitor (Cb) and the ground.

公开(公告)号：EP1963665A1

公开(公告)日：2008-09-03

申请号：EP06842058.7

申请日：2006-11-29

申请人： Renault SAS

发明人： MALEK, Nadim ,  AGNERAY, André

IPC分类号： F02M69/04 ,  F02M63/00

CPC分类号： F02M63/0029 ,  F02M45/10 ,  F02M69/041 ,  F02M2200/21

摘要： The fuel injector (44, 66, 70, 74) for an internal combustion engine, particularly of the inwards or outwards opening needle injector type, comprises an injector body (12) which in particular forms a nozzle (16) ending in an injection orifice, means for closing off the said injection orifice of the said injector body, the said closing-off means comprising a vibrating pintle (24) ending in a head (26) for closing off the said injection orifice, return means (30) for returning the said closing-off means to the position in which they close off the said injection orifice, and means (36, 72) for setting the said pintle (24) and/or the said nozzle (16) into cyclic longitudinal vibration so as to open and close the injection orifice alternately. The fuel injector (44, 66, 70, 74) is notable in that it comprises selectively activatable means (46, 48) for immobilizing the said pintle (24) with respect to the said body (12).

公开(公告)号：EP1910665A2

公开(公告)日：2008-04-16

申请号：EP06794480.1

申请日：2006-07-18

申请人： Renault SAS

发明人： MALEK, Nadim ,  AGNERAY, André

IPC分类号： F02M69/04 ,  F02M45/10

CPC分类号： F02M51/0603 ,  F02M45/10 ,  F02M69/041

摘要： The invention concerns a fuel injection device for internal combustion engine. The fuel injection device for internal combustion engine comprises an injecting head integral with the end of a needle (3) mobile in translation inside an injection housing (4) supplied with high pressure fuel and having a seat for the injecting head, and a piezoelectric or magnetoresistive vibratory element (5) capable, when it is energized, to act on the needle (3), maintained by a return spring (10), to cause same to vibrate, such that the injecting head co-operates with its seat to periodically open and close a passage for fuel injection. The device comprises means for controlling (16, 17) the movement of the needle in translation, countering the return spring (10), independent of the vibratory element (5).

公开(公告)号：EP2126334B1

公开(公告)日：2012-06-27

申请号：EP08788034.0

申请日：2008-03-25

申请人： Renault SAS

发明人： AGNERAY, André ,  MALEK, Nadim ,  LEVIN, Laurent

IPC分类号： F02M61/06 ,  F02M61/08 ,  F02M61/16 ,  F02M51/06 ,  F02M61/20 ,  F02M63/06

CPC分类号： F02M61/205 ,  F02M45/10 ,  F02M61/08 ,  F02M61/161 ,  F02M61/167 ,  F02M2200/21 ,  F02M2200/304

摘要： The fuel injector for an internal combustion engine comprises: an injector body (12) forming a nozzle (4) tipped with an injection aperture (23); means for capping the injection aperture (23) including an assembly (28) bearing a vibrating rod (23) finished with a head for capping (26) the injection aperture (23); means for vibrating the rod (24) and/or the nozzle (14) in such a way as to alternatively open and close the injection aperture (23) and; means for recoil (30) of the capping means to the position for capping the injection aperture (23), which cooperate with the assembly (28) bearing the rod (24), and; means for locking the assembly (28) bearing the rod (24) in relation to the injector body (12) which are selectively activatable depending on the speed of movement of the assembly (28) bearing the rod (24).

公开(公告)号：EP2126341B1

公开(公告)日：2010-08-25

申请号：EP08762077.9

申请日：2008-02-13

申请人： Renault SAS

发明人： NOUVEL, Clément ,  AGNERAY, André ,  JAFFREZIC, Xavier

IPC分类号： F02P9/00 ,  F02P17/12 ,  F02P23/04

CPC分类号： F02P9/007 ,  F02P3/01 ,  F02P17/12 ,  F02P23/045 ,  F02P2017/121

摘要： The invention relates to a method for controlling a radio-frequency plasma generator, comprising a supply circuit (2) with a switch (9) controlled by at least one control pulse train, for applying an intermediate voltage (Vinter) at a control frequency on an output to which is connected a resonator (6) for generating a spark between two electrodes (103, 106) when a high voltage level is applied to the output, said method being characterised in that it comprises: receiving first and second measurement signals respectively representative of the operation of a combustion engine and of the type of spark generated; real-time adjusting, based on the received measurement signals, at least one parameter selected from at least the intermediate voltage level, the control frequency and the duration of the control train, in order to promote the branching of the spark generated.