WO2011151288A1 - Verfahren und vorrichtung zum steuern eines ventils - Google Patents
Verfahren und vorrichtung zum steuern eines ventils Download PDFInfo
- Publication number
- WO2011151288A1 WO2011151288A1 PCT/EP2011/058838 EP2011058838W WO2011151288A1 WO 2011151288 A1 WO2011151288 A1 WO 2011151288A1 EP 2011058838 W EP2011058838 W EP 2011058838W WO 2011151288 A1 WO2011151288 A1 WO 2011151288A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- current
- value
- valve
- actuator
- ref
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
- F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2037—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for preventing bouncing of the valve needle
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/14—Timing of measurement, e.g. synchronisation of measurements to the engine cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
Definitions
- the invention relates to a method and a device for controlling a valve.
- such a valve is used in a high-pressure ⁇ pump for pumping fluid for a storage injection system for internal combustion engines of motor vehicles.
- valves are subject to heavy loads, especially when exposed to continuous loads, such as in high pressure pumps. Since the high-pressure pump pressures of, for example 2000 bar or more exposed, ho ⁇ he demands are made on the valves in such pumps. Both when closing and when opening these valves, noise may occur.
- the object of the invention is to provide a method and an apparatus for controlling a valve, with or by which a precise and cost-effective operation of the valve is made possible.
- the invention is characterized by a method and a corresponding device for controlling a valve.
- the valve has a spring with a spring force, an actuator with an actuator spring acting counter to the spring force, and a pin which can be actuated by means of the actuator is.
- the actuator m is impressed with a current having a predetermined non-constant course in a first mode of operation from an initial value of the current at which the pin is in a position to allow closing of the valve. Measured values of the current are determined in chronological succession, a reference value of the current assumes the current measured value of the current as soon as the course of the measured values of the current deviates from the impressed course of the current by a predetermined amount.
- the reference value of the current is representative as ⁇ for that the actuator force is equal to the spring force.
- a current having ei nem predetermined non-constant course is impressed out ⁇ from the initial value of the current up to a final value of the current.
- the reference value is between the initial value and the final value of the current.
- the pin is at the final value of the current in a position in which it does not allow the closing of the valve.
- the deviation of the course of the measured values of the current impressed by the actuator profile of the current means that a difference of the measured value of the current from the value of the impressed current exceeds a pre give ⁇ NEN threshold value in a predetermined extent.
- valve can be opened so slowly that the noise of the valve kept small and yet a reliable and sufficiently ra ⁇ cal opening of the valve can be achieved. Furthermore, wear of the valve can be kept small. In addition, a cost-effective design of the valve is possible.
- the actuator is impressed with a current of a predetermined linear path in the first operation mode, determines a current value of a zeitli ⁇ chen variation of the current depends on two successive measurements of the current, a reference value of the current assumes the current measured value of the current as soon as the current value of the temporal change of the current from a previous value of the temporal variation of the current deviates to a predetermined extent, and in which two ⁇ th mode of operation, a current having a predetermined linear course is the actuator imprinted.
- Deviating the current value of the time variation of the current from one of the preceding values of the time variation of the current by a predetermined amount means that a difference of the current value of the time variation of the current from one of the preceding values of the time variation of the current is a predetermined threshold value exceeds.
- the spring is designed to open the valve.
- the impressed current decreases linearly, starting from the initial value of the current.
- the actuator force is greater than the spring force.
- the impressed current decreases linearly from the initial value of the current, and the final value is smaller than the reference value.
- the impressed current is set as a function of a pulse width modulation. This has the advantage that the impressed current can be adjusted in a very simple manner.
- time points for determining the measured values of the current are dependent on times of maxima of the pulse-width-modulated current.
- a frequency of the pulse width modulation is dependent on times for determining the measured values of the current.
- the measured values of the current are determined as a function of a voltage across a shunt resistor. This is a particularly easy way to reliably measure the current.
- the reference value of the current is determined depending on a temperature of a fluid in the valve or in a predetermined range of the valve. This has the advantage that reference values of the current can be determined under different, in particular temperature-dependent operating conditions of the valve.
- valve is arranged in an injection system of an internal combustion engine, and the reference value of the current is determined from ⁇ dependent characteristic values of the internal combustion engine.
- the reference value of the current is stored in an operating point-dependent characteristic map.
- the initial value of the current and the final value of the stream are added in such a way before ⁇ that the reference value of the current is the arithmetic average of the initial value and the final value.
- FIG. 1 shows a schematic view of a pump with a valve in a longitudinal section
- Figure 2 is a schematic view of the valve ⁇ cut in a longitudinal
- FIG. 3 shows a schematic view of the valve in three operating states
- Figure 4 is a schematic view of current curves in
- the pump 10 is designed in particular as a high pressure pump, preferably as a radial piston pump.
- a pump piston 14 is movably mounted in the pump housing 12 in order to fill the pressure chamber 16 with fluid, this has a supply line 18, in which preferably designed as an inlet valve 20 is angeord ⁇ net.
- the valve 20 designed as an inlet valve is preferably designed as a digitally switched valve.
- the valve 20 facilitates the filling of the pressure chamber 16 and prevents the backflow of the fluid from the feed line 18 during filling.
- the pressure chamber 16 also has a drain line 22, in which an outlet valve designed as a further valve 24 is arranged. This fluid can be ejected from the pressure chamber 16.
- the pump 10 further has a drive shaft 26, which is in operative connection with an eccentric ring 28 and is rotatable in a rotational direction D in the clockwise direction.
- a drive shaft 26 which is in operative connection with an eccentric ring 28 and is rotatable in a rotational direction D in the clockwise direction.
- the eccentric ring 28 and a camshaft can be used.
- the pump can be designed as a crank drive pump ⁇ leads 10th
- FIG. 2 shows the valve 20 with a valve housing 29, which has a recess 30.
- a spring 32 biases the sealing element 36 over the pin 34 by being supported on a wall of the recess 30.
- the pin 34 has a first cylindrical part 34a and a second cylindrical part 34b, the first part 34a having a larger diameter than the second part 34b.
- a sealing seat 38 which is fixedly arranged relative to the valve housing 29 and has passage openings 40. Fluid can flow via the passage recesses 40 when the sealing element 36 does not bear against the sealing seat 38.
- the valve 20 further comprises an actuator 42, which is in particular ⁇ special designed as a magnetic coil.
- the first portion 34a of the pin 34 is disposed within the actuator 42 and may be actuated by the actuator 42.
- the valve 20 is closed by applying a current to the actuator 42, whereby an actuator force F_2 acting counter to the spring force F_1 can act on the pin 34.
- an actuator force F_2 acting counter to the spring force F_1 can act on the pin 34.
- the sealing ⁇ element 36 can bear against the sealing seat 38, and a Fluidströ- mung through the through holes 40 is prevented.
- the compressed in the pressure chamber 16 fluid can now be completely discharged from the pump 10 via the formed as an outlet valve further valve 24.
- the pump piston 14 has now reached a top dead center.
- the pump 10 is a high-pressure fuel pump of an injection system of an internal combustion engine
- the fuel subjected to high pressure can reach a fluid reservoir which is designed as a high-pressure fuel reservoir, the so-called common rail.
- Both when opening and when closing the valve 20 may occur due to mechanical and hydraulic causes noise on the valve 20.
- the noises occurring when the valve 20 is opened are described below with reference to FIG.
- the sealing member 36 comes into abutment with the Ven ⁇ tilgephase 29 ( Figure 3A), whereby a first sound may occur.
- the sealing element 36 can move back toward the pin 34 by the contact with the valve housing 29 while the pin 34 in turn is moved by the spring force ⁇ F_l of the spring 32 on the sealing element 36th If the sealing element 36 and the part 34a of the pin 34 meet, another noise may occur (FIG. 3B). In the following, the pin 34 is moved by the spring force F_l of the spring 32 against the sealing seat 38. If the part 34b of the pin 34 encounters the sealing seat 38, a further noise may occur (FIG. 3C).
- the actuator 42 is impressed in a first operating mode, a current having a predetermined course.
- the first operating mode can also be referred to as a detection mode.
- the impressed current increases from ⁇ going from an initial value I_0.
- the actuator force I_0 F_2 is greater than the spring force ⁇ F_l.
- the pin 34 is pressed against the spring force F_l in the direction of the spring 32 out.
- the valve 20 may be closed in this state. If the valve 20 is arranged in the pump 10, then the impressed current takes the Initial value I_0 when the pump piston 14 reaches the top dead center.
- the high-resolution representation of the course of the current in FIG. 4 also shows fluctuations in the current caused by a pulse width modulation.
- the course of the current is to be understood as linear, and the linear course of the current is only superimposed on the comparatively very small fluctuations of the pulse width modulation.
- measured values I_AV of the current are determined in chronological succession.
- a current value I_grad of a temporal change of the current is determined.
- the current is linearly reduced until the current value I_grad of the time variation of the current deviates from a previous value I_grad_p of the time variation of the current by a predetermined amount, that is, the deviation between the current value I_grad of the time variation of the current to the previous value
- I_grad_p the time variation of the current exceeds a predetermined threshold. Such a situation is illustrated in the enlarged section of FIG. 4, where the current value I_grad of the temporal variation of the
- the impressed current is adjusted depending on a pulse width modulation.
- ⁇ geous when timings for determining the measured values of the current I_AV are dependent pulse-width modulated by times of the maxima of the current.
- the value I_grad the temporal change of the current can be determined in this case from the difference between two consecutive peak values of the pulse-width-profiled stream, as can be seen in particular in Fi gur ⁇ . 4
- the frequency of the pulse width modulation can be adjusted to the desired time for determining the measured values I_AV of the current. This makes it possible in particular to adapt the distance of the maxima of the pulse width modulated current to the desired measuring points for determining the measured values I_AV of the current.
- the measured values I_AV of the current are determined by a voltage measurement on a shunt resistor.
- the first mode of operation may in particular be carried out depending on ambient conditions, such as the temperature of the valve 20 or a temperature of a fluid in the valve 20 or on characteristics of the internal combustion engine, such as the speed or the running time of the internal combustion engine.
- the storage of the determined for the various operating conditions of the valve 20 or the engine reference values I_REF of the current can be stored by storing in an operating point Map done.
- the reference values I_REF of the current for different operating conditions of the valve 20 or of the internal combustion engine can be stored in the context of the first operating mode.
- a second operating mode which is also called work mode ⁇ be distinguished
- the actuator 42 of the current with a predetermined profile is imparted.
- the current in turn decreases linearly starting from the output value I_0 at which the actuator force F_2 is greater than the spring force F_1.
- From the linear ⁇ acquisition of the current is now carried out to a final value of the current I_F.
- the final value I_F of the current is smaller than the Refe rence value ⁇ I_REF. If the valve 20 is arranged in the pump 10, the impressed current assumes the final value I_F when the pump piston 14 is near the bottom dead center.
- the final value I_F is representative of the fact that the pin 34 is in a position where it does not allow the valve 20 to close. In other words, this means that the Fe ⁇ derkraft F_l is only slightly larger than the actuator force F_2.
- the pin 34 can be in gentle contact with the sealing element 36 in contact, and thus determine the position of the sealing element 36 relative to the sealing seat 38, whereby the valve 20 can be effectively kept open. Due to the slow movement of the pin 34, the noise of the valve 20 can be kept very small and the valve 20 can still be opened reliably and quickly enough. In addition, the slow movement of the pin 34, the wear of the valve 20 can be kept small.
- the reference value I_REF relative to the initial value and the end value I_0 I_F the current can be positioned by the duty cycle of the pulse width modulated stream into entspre ⁇ chender way is adjusted.
- an adjustment of the reference value of the current through a I_REF An ⁇ adjustment of the slope of the current curve from the initial value I 0 of the current can be achieved to the final value of the current IF.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Magnetically Actuated Valves (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/701,598 US9103458B2 (en) | 2010-06-02 | 2011-05-30 | Method and device for controlling a valve |
KR1020127034235A KR101832473B1 (ko) | 2010-06-02 | 2011-05-30 | 밸브를 제어하기 위한 방법 및 장치 |
CN201180038050.3A CN103026038B (zh) | 2010-06-02 | 2011-05-30 | 用于控制阀的方法和装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010022536.3 | 2010-06-02 | ||
DE102010022536A DE102010022536A1 (de) | 2010-06-02 | 2010-06-02 | Verfahren und Vorrichtung zum Steuern eines Ventils |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011151288A1 true WO2011151288A1 (de) | 2011-12-08 |
Family
ID=44484898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/058838 WO2011151288A1 (de) | 2010-06-02 | 2011-05-30 | Verfahren und vorrichtung zum steuern eines ventils |
Country Status (5)
Country | Link |
---|---|
US (1) | US9103458B2 (de) |
KR (1) | KR101832473B1 (de) |
CN (1) | CN103026038B (de) |
DE (1) | DE102010022536A1 (de) |
WO (1) | WO2011151288A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9103458B2 (en) | 2010-06-02 | 2015-08-11 | Continental Automotive Gmbh | Method and device for controlling a valve |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5577289B2 (ja) * | 2011-03-30 | 2014-08-20 | アズビル株式会社 | ポジショナ |
DE102011075269B4 (de) | 2011-05-04 | 2014-03-06 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern eines Ventils |
JP6011447B2 (ja) * | 2013-05-10 | 2016-10-19 | トヨタ自動車株式会社 | 燃料噴射弁の制御装置 |
JP5772884B2 (ja) * | 2013-06-24 | 2015-09-02 | トヨタ自動車株式会社 | 燃料噴射弁駆動システム |
EP2860390A1 (de) | 2013-10-10 | 2015-04-15 | Continental Automotive GmbH | Strömungsverteilungsmessung eines Flüssigkeitszerstäubungsvorhangs durch Kühlung eines Tastdrahts |
DE102014206231A1 (de) * | 2014-04-02 | 2015-10-08 | Continental Automotive Gmbh | Verfahren zum Betreiben einer Hochdruckpumpe eines Einspritzsystems und Einspritzsystem |
DE102014219536B4 (de) * | 2014-09-26 | 2022-02-03 | Zf Friedrichshafen Ag | Verfahren zur Ermittlung einer Betätigungskraft eines Stellaktuators sowie Betätigungseinrichtung mit einem Stellaktuator |
DE102015219036A1 (de) * | 2015-10-01 | 2017-04-06 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Betreiben einer Hochdruckpumpe für einen Brennkraftmotor |
JP6464076B2 (ja) * | 2015-11-17 | 2019-02-06 | ヤンマー株式会社 | 燃料噴射ポンプ |
DE102016219954B3 (de) * | 2016-10-13 | 2018-01-25 | Continental Automotive Gmbh | Verfahren zum Überprüfen eines Drucksensors eines Hochdruckeinspritzsystems, Steuervorrichtung, Hochdruckeinspritzsystem und Kraftfahrzeug |
EP3346121B1 (de) * | 2017-01-10 | 2019-09-11 | Continental Automotive GmbH | Magnetventil für ein kraftstoffeinspritzsystem und kraftstoffhochdruckpumpe |
DE102017207685A1 (de) * | 2017-05-08 | 2018-11-08 | Robert Bosch Gmbh | Verfahren zum Ansteuern mindestens eines Magnetventils |
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EP2453122B1 (de) * | 2010-11-12 | 2016-09-07 | Hitachi, Ltd. | Verfahren und Steuergerät zur Steuerung einer Hochdruckkraftstoffförderpumpe zur Speisung von Kraftstoff unter Druck in einen Verbrennungsmotor |
-
2010
- 2010-06-02 DE DE102010022536A patent/DE102010022536A1/de not_active Ceased
-
2011
- 2011-05-30 US US13/701,598 patent/US9103458B2/en active Active
- 2011-05-30 KR KR1020127034235A patent/KR101832473B1/ko active IP Right Grant
- 2011-05-30 WO PCT/EP2011/058838 patent/WO2011151288A1/de active Application Filing
- 2011-05-30 CN CN201180038050.3A patent/CN103026038B/zh active Active
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DE3942836A1 (de) * | 1989-12-23 | 1991-06-27 | Daimler Benz Ag | Verfahren zur bewegungs- und lagezustandserkennung eines durch magnetische wechselwirkung zwischen zwei endpositionen beweglichen bauteiles eines induktiven elektrischen verbrauchers |
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US20050066940A1 (en) * | 2003-09-26 | 2005-03-31 | Sheikh Ahmed Esa | Apparatus and method for accurate detection of locomotive fuel injection pump solenoid closure |
WO2007090228A1 (en) * | 2006-02-06 | 2007-08-16 | Orbital Australia Pty Limited | Fuel injection apparatus |
EP2060763A2 (de) * | 2007-11-15 | 2009-05-20 | Delphi Technologies, Inc. | Störungsdetektor und Verfahren zum Erkennen von Störungsereignissen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US9103458B2 (en) | 2010-06-02 | 2015-08-11 | Continental Automotive Gmbh | Method and device for controlling a valve |
Also Published As
Publication number | Publication date |
---|---|
DE102010022536A1 (de) | 2011-12-08 |
KR101832473B1 (ko) | 2018-02-26 |
CN103026038B (zh) | 2015-11-25 |
US9103458B2 (en) | 2015-08-11 |
CN103026038A (zh) | 2013-04-03 |
US20130134335A1 (en) | 2013-05-30 |
KR20130111251A (ko) | 2013-10-10 |
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