EP1547220A1 - Verfahren zur überstromerkennung eines elektrischen antriebes - Google Patents
Verfahren zur überstromerkennung eines elektrischen antriebesInfo
- Publication number
- EP1547220A1 EP1547220A1 EP03798041A EP03798041A EP1547220A1 EP 1547220 A1 EP1547220 A1 EP 1547220A1 EP 03798041 A EP03798041 A EP 03798041A EP 03798041 A EP03798041 A EP 03798041A EP 1547220 A1 EP1547220 A1 EP 1547220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power semiconductor
- electric drive
- voltage
- pwm
- semiconductor component
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
Definitions
- blowers are generally used which bring about heat dissipation when the wind at low speeds of the motor vehicle is no longer sufficient to dissipate heat from the radiator.
- One-piece plastic fans are generally used on passenger cars, which are also increasingly being used in commercial vehicles for heat dissipation.
- Direct current motors are used today on cooling fans of ner internal combustion engines, by means of which the fan wheel of the fan is possibly driven with the interposition of a clutch.
- the electrical drives used are controlled by power controls, for which purpose the supply voltage is clocked at a frequency above 15 kHz.
- the supply voltage is clocked by pulse width modulation, with which the pulse width ratio, i. H. the pulse interval length between the control pulses can be lengthened or shortened, as a result of which the terminal voltage at the terminals of the electrical drives used can be varied within a wide range.
- the speed of the electric drives can be adjusted over a wide range with the aid of pulse width modulation of the supply voltage. This is of particular interest when the vehicle is running at low speed or when it is stationary. Then, by increasing the rotational speed of the electric drive of the fan wheel, sufficient heat dissipation can be brought about at the cooler of the ner internal combustion engine when the cooling from the air stream flowing through the cooler is no longer sufficient.
- the clocking of the supply voltage which is present at the terminals of the electric drives, however, requires the use of free-wheeling diodes and capacitor elements. Electrolytic capacitors are usually used. The freewheeling diode enables the freewheeling of the electric drive or electric drives while the electrolytic capacitors allow free running for the supply line. In order for the electrolytic capacitors to work without problems even at high temperatures and to achieve the required service lives, these are usually large-sized in terms of capacity. Furthermore, it may be necessary to connect two electrolytic capacitors in parallel in order to achieve the desired smoothing of the ripple.
- DE 197 32 094 AI relates to a control circuit for a DC motor.
- An electrolytic capacitor is connected in parallel with the DC motor.
- the control circuit has a freewheeling diode and a nerpol protection device which contains a transistor switch with a diode connected in parallel with it.
- the nerpol protection device is connected to the circuit of the electrolytic capacitor and the freewheeling diode.
- the transistor switch is designed as a ⁇ -channel power MOSFET and lies with its drain connection on the minus connection of the electrolytic capacitor and on the anode of the filing diode.
- the free-wheeling diode is located on the positive side of the DC motor with its cathode.
- the source is connected to the negative side of the DC motor and the gate is connected to a positive voltage via a resistor.
- DE 197 32 098 AI also relates to a control circuit for a DC motor.
- the DC motor is driven in a clocked manner and comprises an electrolytic capacitor connected in parallel and a free-wheeling diode.
- the control radiation is reduced in that a choke is connected between the positive motor supply voltage and the positive connection of the electrolytic capacitor, and in that the freewheeling diode with its cathode between the choke and the electrolytic capacitor and with its anode on the negative side of the DC motor is.
- overcurrent is detected by detecting a current in the freewheeling circuit of the electric drive.
- the current in the free-wheeling circuit of the electric drive is measured indirectly by measuring the induced voltage at the line inductance of the free-wheeling circuit.
- the current detection in the freewheeling circuit can be implemented using a shunt, which, however, has the disadvantage that it generates power loss and thus generates heat.
- current measurement using a shunt is relatively expensive.
- the outlined methods for measuring the induced voltage at the line inductance of the freewheeling circuit depend, among other parameters, on the line routing and on the switching behavior of the power transistors.
- the measurement of the induced voltage at the line inductance of the freewheeling circuit is due to the low against voltages and high impedance sensitive to interference, e.g. B. by electric fields.
- an electric drive can be blocked by indirect overcurrent detection.
- Blocking, stiffness or the respective rotational speed of the electric drive can occur via the current or the current form or also from voltage pulses derived from the current form when controlling a power semiconductor component, such as, for example, B.
- a MOSFET can be obtained.
- the electrical drive of an engine cooling fan is controlled in the partial load range with a PWM clock signal ⁇ 100%.
- the pulses of the current are counted within an evaluation circuit in which a microcontroller ( ⁇ C) is recorded.
- the evaluation circuit comprises a biased comparator which switches the output when a threshold input voltage is exceeded.
- the edge change at the output of the preloaded comparator can be detected by the microcontroller and the number of edge changes can be counted in it.
- the number of edges is AI.
- This value AI represents a reference value. If a number of edges AI is determined which is less than the number of edges occurring during normal operation of the electric drive, there may be a defect in the power semiconductor component (MOSFET), in the electric drive itself or in the electrical connecting lines , Thereupon the energization of the electric drive via the evaluation circuit is prevented by switching off the current control.
- MOSFET power semiconductor component
- the cycle can be switched to a cycle ratio of 99%) for a short period of time.
- a check is made as to whether a certain number A2 of pulses occur per time period. If, when checking the number of pulses A2 per time period, a number A2 is determined that is less than the number A2, a defect in the power semiconductor component (MOSFET), in the electrical drive itself or in the free-wheeling circuit or in the electrical connecting lines is concluded and the electrical drive is deenergized.
- MOSFET power semiconductor component
- Blocking of the electric drive can also be determined by detecting the absolute value of the voltage of the electric drive.
- the level of the absolute value of the voltage can be detected by the microcontroller, which immediately switches off the power semiconductor component which drives the electrical drive. Since the limit voltage of the electric drive depends on the PWM clock signal and on the supply voltage, the limit voltage can be adjusted by the microcontroller ⁇ C depending on the PWM clock signal and the voltage supply Ü B.
- Figure 1 is a schematic diagram of an evaluation circuit for overcurrent detection of an electric drive
- Figure 2 shows an extended evaluation circuit with voltage tap between the power semiconductor component and comparator.
- FIG. 1 shows the basic circuit diagram of an evaluation circuit for overcurrent detection of an electric drive.
- An energy storage device in the form of a vehicle battery, which is integrated in a vehicle electrical system 4, represents a voltage source 1.
- the voltage source 1 is connected in parallel with a capacitor 2, with which voltage peaks or voltage fluctuations within the vehicle electrical system 4 can be smoothed.
- An electrical drive 3 is accommodated in the electrical system 4, which drives the fan wheel of an engine cooling fan, for example.
- the drive of the electric drive 3 takes place via a first power semiconductor component, which can be designed as a MOSFET, or as a bipolar transistor or comparable power semiconductor component.
- the freewheeling of the electric drive 3 is realized by a freewheeling diode 5 accommodated in a freewheeling circuit 6.
- the first power semiconductor component 7, for example embodied as a MOSFET transistor 7, comprises a transistor base 8 (G), which is arranged opposite a source gate 9 (S) and a drain gate 10 (D).
- the control of the electrical Drive 3 is carried out by a control of the transistor base 8 (G) of the first power semiconductor component 7 via a control line 13. If the electric drive 3 for driving a fan wheel of an engine cooling fan is to be operated in the partial load range, the first power semiconductor component 7 is operated by means of a PWM applied to the control line 13 -Signal controlled ⁇ 100%.
- the electric drive 3 is driven via the first power semiconductor component 7 by means of a PWM signal 29 of 100%, which in this case is on the drive line 13 of the transistor base 8 (G ) is present.
- the transistor base 8 (G) of the first power semiconductor component 7 is driven via a pulse width signal 29, which is output by a microcontroller 25 ( ⁇ C) on its output side 28.
- the microcontroller 25 comprises, on an input side 26, an input for counting pulses determined in an evaluation circuit 37. B. may be present as edge change 20.
- a stiffness or a blocking of the electric drive 3 can be determined by an indirect overcurrent detection. Blocking or sluggishness as well as the speed of the electric drive 3 can be determined by the current I or the current shape or the voltage pulses of the current derived from the current shape when the first power semiconductor component 7 is controlled.
- each connection of the first power semiconductor component 7 generates a current I in the context of the PWM control line, which current flows through the first power semiconductor component 7.
- the electronic component used as the first power semiconductor component 7 is preferably an electronic component (SENSEFET) that senses the current.
- the current I flowing via the first power semiconductor component 7, corresponding to the control by the PWM signal generates evaluable or countable pulses.
- the first power semiconductor component 7 is assigned a first tap 11 or a second tap 12, via which voltage pulses derived from the current form of the current I can be fed to the evaluation circuit 37.
- the evaluation circuit 37 shown schematically in FIG. 1 with its essential components comprises a comparator component 14. On the input side 15 of the comparator component 14 there is a first comparator input 17 (-) and a second comparator input 18 (+). The first comparator input 17 is connected to the first tap 11, while at the second comparator input 18 a supply Voltage is present. The output of the comparator component 14 is identified by reference number 16. A comparator component 14 with a bias voltage 19 Vcc is preferably used as the comparator component 14 within the evaluation circuit 37.
- the voltage application of the comparator component 14 with a bias voltage 19 (Vcc) follows via a first resistor 21 (Ri), a resistor 22 (R 2 ) connected in parallel with this and a third resistor 23 (R 3 ), which is connected in series with the first resistor 21 lies.
- the bias voltage 19 (Vcc) is the comparator component 14 on the input side 15 at the second comparator input 18; the connection point is formed by a terminal 24.
- the threshold input voltage of the comparator component 14 is predetermined via the bias voltage 19 (Vcc) with which the comparator component 14 is applied.
- the current Is to be sensed is detected at the second tap 12.
- the current 1 $ to be sensed flows through a resistor Rs (Rsen se ), which at KS is connected to the line leading to the first comparator input 17.
- KS represents a temperature detection point in relation to the first power semiconductor component 7. If this threshold input voltage, which in the present case is applied to the second comparator input 18 (+), is exceeded by a detected voltage value, the comparator component 14 switches its output 16.
- the switching of the output 16 is characterized by an edge change 20.
- This edge change 20 can be detected by the microcontroller 25 ( ⁇ C) and counted therein.
- the edge changes 20 occurring at the output 16 of the prestressed comparator component 14 are applied to an input 27 on the input side 26 of the microcontroller 25 ( ⁇ C).
- the number of edge changes 20, which represent the detectable pulses is AI.
- This number of edge changes 20 occurring in normal operation of the electric drive 3 in the partial load range is stored in the microcontroller 25 ( ⁇ C) and represents a reference value.
- a number of pulses, ie edge changes 20 on the output side 16 of the preloaded comparator component, are stored in the evaluation circuit 37 14, AI transmitted to the input 27 of the microcontroller 25 ( ⁇ C), there is a comparison between the number of edge changes 20, AI occurring during normal operation and the determined number of edge changes 20 AI.
- a defect in a first power semiconductor component 7 can be, for example, a temporary or permanent trigger-independent high impedance of the first power semiconductor component.
- the PWM clock signal When the electric drive 3 is fully activated with a PWM clock signal 29 of 100%), the PWM clock signal is cyclically reduced to, for example, 99% for a short period of time. In normal operation, this PWM clock signal produces a number of A2 pulses, i. H. Edge changes 20 per time interval.
- the expected number A2 of edge changes 20 in normal operation of the electric drive 3 in full load operation is also stored within the microcontroller 25 ( ⁇ C).
- the number of the by the evaluation circuit 37, i. H. edge changes 20, A2 determined at the output 16 of the preloaded comparator element 14 are compared with the number A2 of edge changes 20 stored in the microcontroller 25 ( ⁇ C) and valid for normal operation.
- FIG. 2 shows an extended evaluation circuit with a voltage tap between the first power semiconductor component in the biased comparator component of the evaluation circuit.
- an inductance denoted by L is contained in the freewheeling circuit assigned to the electric drive 3.
- the freewheeling circuit 6 assigned to the electric drive 3 comprises a second power semiconductor component 32.
- the voltage source 1 is integrated into the electrical system 4 of a vehicle, not shown here, for example a motor vehicle. Both the inductance and the capacitor 2 are connected in parallel to the voltage source 1.
- the electric drive 3 is driven by the first power semiconductor component 7, which can be designed, for example, as a MOSFET or as a bipolar transistor. Its transistor base 8 (G) is supplied with a PWM signal 31 via the control line 13.
- the first power semiconductor component 7 which can be designed, for example, as a MOSFET or as a bipolar transistor.
- Its transistor base 8 (G) is supplied with a PWM signal 31 via the control line 13.
- the first power semiconductor component 7 comprises a drain gate 10 (D) and a source gate 9 (S).
- the current that arises at the first power semiconductor component 7 is indicated by the arrow labeled I and arises at the first power semiconductor component 7 in accordance with the PWM clock signal 31.
- the first power semiconductor component 7 are assigned the first tap 11 and the second tap 12, via which the current, the current form or voltage pulses determined from the current form are fed to the evaluation circuit 37.
- the evaluation circuit 37 corresponds essentially to the evaluation circuit in the basic circuit diagram according to FIG. 1. In the evaluation circuit 37 according to FIG. 2, the comparator component 14 is also supplied with a voltage 19 (Vcc).
- the pulses generated at the first tap 11 or at the second tap 12 stem from the switching through of the first power semiconductor component 7 as part of the actuation by the PWM clock signal 31, at which a current I is set via the first power semiconductor component 7, which current can be evaluated or counted Represents impulse.
- IQ denotes the current in the drain branch 10 which flows in accordance with the P WM clock signal.
- the evaluable or countable pulses resulting from the current flow through the first power semiconductor component 7 are fed to the first comparator input 17 (-) or the second comparator input 18 (+) via the first tap 11 or the second tap 12.
- the current Is detected at the second tap 12 flows through a resistor Rs, which at KS is connected to the line leading to the first comparator input 17 (-).
- the connection point KS simultaneously represents a temperature detection point (Kellvin source) for the first power semiconductor component 7.
- an absolute voltage tap 36 is assigned to the first tap 11.
- the absolute value of the voltage Ui of the first power semiconductor component 7 can be detected at the absolute voltage tap 36. If the electric drive 3 is blocked or stiff, the absolute value of the voltage Ui becomes a limit voltage Ui. Crossing borders.
- the detected absolute value of the voltage Ui is fed to an input 38 of the microcontroller 25. If the voltage Ui detected at the absolute voltage tap 36 overlaps the permissible voltage value Ui. Limit, the energization of the first power semiconductor component 7 can be canceled by the microcontroller 25 via the control line 29.
- the limit voltage Ui is the limit voltage Ui.
- Limit is dependent on the PWM signal 31, with which the first power semiconductor component 7 and the second power semiconductor component 32 contained in the free-wheeling circuit 6 are controlled. Furthermore, the limit voltage Ui, limit is also dependent on the supply voltage Ü B of the voltage source 1. Therefore, the voltage Ü B of the voltage source 1 is supplied to the microcontroller 25 ( ⁇ C) at an input 30, and the P WM timing signal is also supplied to the microcontroller 25 , The limit voltage Ui. G re n influencing PWM signal depends on whether the electric drive 3 is operated in the partial load range or at full load.
- the freewheeling circuit 6 contains the second power semiconductor component 32 as shown in FIG. 2.
- the PWM clock signal 31 is accordingly a first PWM control branch 33 in parallel for the first power semiconductor component 7 and a second PWM control branch 34 for driving the second power semiconductor component 32.
- an inverter module 35 is accommodated in order to provide an alternating control circuit for the first power semiconductor component 7 and the second power semiconductor component 32 accommodated in the freewheeling circuit 6 enable.
- the first power semiconductor component 7 for driving the electric drive 3 in the partial-load or full-load range is accordingly operated alternately with the second power semiconductor component 32, which is accommodated in the freewheeling circuit 6 of the electric drive 3.
- the method proposed according to the invention enables detection of blocking or stiffness of an electric drive 3 in both design variants.
- the speed of the electric drive 3 can also be determined via the proposed method.
- the proposed method according to the embodiment variants according to FIGS. 1 and 2 eliminates the need to integrate a shunf that generates power loss and thus produces heat. Furthermore, falsifications relating to the pulse pick-up resulting from the line routing and from the switching behavior of the power semiconductor components 7, 32 are avoided.
- MOSFET first power semiconductor component
- MOSFET 32 second power semiconductor component
Landscapes
- Control Of Direct Current Motors (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10245242 | 2002-09-26 | ||
DE10245242A DE10245242A1 (de) | 2002-09-26 | 2002-09-26 | Verfahren zur Überstromerkennung eines elektrischen Antriebes |
PCT/DE2003/002144 WO2004030173A1 (de) | 2002-09-26 | 2003-06-27 | Verfahren zur überstromerkennung eines elektrischen antriebes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1547220A1 true EP1547220A1 (de) | 2005-06-29 |
Family
ID=32038189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03798041A Withdrawn EP1547220A1 (de) | 2002-09-26 | 2003-06-27 | Verfahren zur überstromerkennung eines elektrischen antriebes |
Country Status (6)
Country | Link |
---|---|
US (1) | US7122984B2 (de) |
EP (1) | EP1547220A1 (de) |
JP (1) | JP4395441B2 (de) |
KR (1) | KR100995485B1 (de) |
DE (1) | DE10245242A1 (de) |
WO (1) | WO2004030173A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004030129A1 (de) * | 2004-06-22 | 2006-01-19 | Robert Bosch Gmbh | Schaltungsanordnung und Verfahren zur Einstellung der Leistungsaufnahme einer an einem Gleichspannungsnetz betreibbaren Last |
TWI331845B (en) * | 2006-06-06 | 2010-10-11 | Asustek Comp Inc | Control system for fan |
DE102007005571B4 (de) * | 2007-02-05 | 2022-07-07 | Robert Bosch Gmbh | Lüfteranordnung mit erhöhter Verfügbarkeit und Verfahren zu ihrem Betrieb |
JP4430724B2 (ja) * | 2007-09-13 | 2010-03-10 | 日本特殊陶業株式会社 | スパークプラグ |
DE102007062724A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Vorrichtung zur Bestimmung einer Schwergängigkeit oder eines Blockierfalls eines Elektromotors |
DE102010030153A1 (de) * | 2010-06-16 | 2011-12-22 | Robert Bosch Gmbh | Motorsteuerung |
IT1404251B1 (it) * | 2011-01-25 | 2013-11-15 | Gate Srl | Dispositivo di controllo per un motore elettrico in corrente continua di un ventilatore di raffreddamento per autoveicoli |
DE102012019556A1 (de) * | 2012-10-05 | 2014-02-20 | M&S sectec GbR | Verfahren zum Betreiben einer Stromquelle und Vorrichtung zum Trennen einer Stromquelle von einem Verbraucher |
KR20140055986A (ko) | 2012-10-31 | 2014-05-09 | 대성전기공업 주식회사 | 스위치 릴레이 장치 |
EP2746890B1 (de) * | 2012-12-19 | 2017-09-27 | Nxp B.V. | Stromüberwachungsschaltungen und -verfahren |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4873453A (en) * | 1987-10-27 | 1989-10-10 | Eaton Corporation | DC motor speed controller having protection |
EP0688077B1 (de) * | 1989-05-09 | 1999-08-11 | UT Automotive Dearborn, Inc. | Schaltung zur Leistungsabgabe mit Stromerfassung |
US5374857A (en) * | 1992-05-29 | 1994-12-20 | Sgs-Thomson Microelectronics, Inc. | Circuit for providing drive current to a motor using a sensefet current sensing device and a fast amplifier |
TW308754B (de) * | 1994-12-28 | 1997-06-21 | Yamaha Motor Co Ltd | |
JP3067601B2 (ja) * | 1995-08-02 | 2000-07-17 | 株式会社デンソー | 電動モータの制御装置 |
US5742142A (en) * | 1996-08-09 | 1998-04-21 | Delco Electronics Corp. | Low radiated emission motor speed control with PWM regulator |
US5710495A (en) * | 1996-08-14 | 1998-01-20 | Texas Instruments Incorporated | Apparatus and method for measuring average motor current |
DE19732098A1 (de) | 1997-07-25 | 1999-01-28 | Bosch Gmbh Robert | Steuerschaltung für einen Gleichstrommotor |
DE19732094A1 (de) | 1997-07-25 | 1999-01-28 | Bosch Gmbh Robert | Steuerschaltung für einen Gleichstrommotor |
DE19756461A1 (de) * | 1997-12-18 | 1999-07-01 | Bosch Gmbh Robert | Verfahren zum Beeinflussen der elektrischen Leistung einer Last mit einem impulsbreitenmodulierten Signal |
US6054823A (en) * | 1998-05-19 | 2000-04-25 | Telcom Semiconductor, Inc. | Verification of fan operation |
DE19826458A1 (de) * | 1998-06-13 | 1999-12-16 | Papst Motoren Gmbh & Co Kg | Anordnung mit einem Elektromotor |
AU2001233663A1 (en) * | 2000-02-07 | 2001-08-20 | Papst-Motoren Gmbh And Co. Kg | Arrangement for supplying a user, especially a d.c. motor, that consumes power in a non-continuous manner from a d.c. system |
JP3521842B2 (ja) * | 2000-04-13 | 2004-04-26 | 株式会社デンソー | モータ駆動装置 |
DE10336512B4 (de) * | 2002-08-08 | 2015-12-17 | Denso Corporation | Ansteuerungsvorrichtung für eine PWM-Steuerung von zwei induktiven Lasten mit reduzierter Erzeugung von elektrischen Störungen |
US6924633B2 (en) * | 2003-12-19 | 2005-08-02 | Texas Instruments Incorporated | Pulse width modulation controller with double pulse immunity |
TWM251395U (en) * | 2004-02-16 | 2004-11-21 | Welltek Energy Technology Comp | Programmable fast motor torque controller |
-
2002
- 2002-09-26 DE DE10245242A patent/DE10245242A1/de not_active Ceased
-
2003
- 2003-06-27 KR KR1020057004935A patent/KR100995485B1/ko not_active IP Right Cessation
- 2003-06-27 EP EP03798041A patent/EP1547220A1/de not_active Withdrawn
- 2003-06-27 JP JP2004538679A patent/JP4395441B2/ja not_active Expired - Fee Related
- 2003-06-27 US US10/528,850 patent/US7122984B2/en not_active Expired - Fee Related
- 2003-06-27 WO PCT/DE2003/002144 patent/WO2004030173A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2004030173A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004030173A1 (de) | 2004-04-08 |
KR20050071501A (ko) | 2005-07-07 |
KR100995485B1 (ko) | 2010-11-22 |
US7122984B2 (en) | 2006-10-17 |
JP4395441B2 (ja) | 2010-01-06 |
DE10245242A1 (de) | 2004-04-22 |
US20060066276A1 (en) | 2006-03-30 |
JP2006500893A (ja) | 2006-01-05 |
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