DE4038301A1 - Verfahren und vorrichtung zur unterdrueckung von schwingungen des fahrzeugaufbaus - Google Patents
Verfahren und vorrichtung zur unterdrueckung von schwingungen des fahrzeugaufbausInfo
- Publication number
- DE4038301A1 DE4038301A1 DE4038301A DE4038301A DE4038301A1 DE 4038301 A1 DE4038301 A1 DE 4038301A1 DE 4038301 A DE4038301 A DE 4038301A DE 4038301 A DE4038301 A DE 4038301A DE 4038301 A1 DE4038301 A1 DE 4038301A1
- Authority
- DE
- Germany
- Prior art keywords
- vibration
- vehicle
- alternator
- acceleration
- pulse width
- 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- Withdrawn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
- 230000001133 acceleration Effects 0.000 title claims abstract description 70
- 230000005284 excitation Effects 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 19
- 230000001629 suppression Effects 0.000 claims description 13
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 7
- 230000009102 absorption Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 206010012289 Dementia Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
-
- 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
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/18—Suppression of vibrations in rotating systems by making use of members moving with the system using electric, magnetic or electromagnetic means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1446—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle in response to parameters of a vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/20—Reducing vibrations in the driveline
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Multimedia (AREA)
- Combustion & Propulsion (AREA)
- Control Of Eletrric Generators (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1314066A JPH03178599A (ja) | 1989-12-02 | 1989-12-02 | 自動車の車体振動抑制方法及び装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4038301A1 true DE4038301A1 (de) | 1991-06-06 |
Family
ID=18048818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4038301A Withdrawn DE4038301A1 (de) | 1989-12-02 | 1990-11-30 | Verfahren und vorrichtung zur unterdrueckung von schwingungen des fahrzeugaufbaus |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH03178599A (ko) |
KR (1) | KR910011505A (ko) |
DE (1) | DE4038301A1 (ko) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0604979A2 (en) * | 1992-12-28 | 1994-07-06 | Nippondenso Co., Ltd. | Vibration damping control apparatus for vehicle |
EP0661791A2 (en) * | 1993-12-28 | 1995-07-05 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling output of vehicular AC generator |
DE4412945A1 (de) * | 1992-10-16 | 1995-10-19 | Heidelberger Druckmasch Ag | Vorrichtung und Verfahren zur Dämpfung von mechanischen Schwingungen von Druckmaschinen |
EP0725473A2 (en) * | 1995-01-31 | 1996-08-07 | Nippondenso Co., Ltd. | Vehicle power generating apparatus |
DE19532164A1 (de) * | 1995-08-31 | 1997-03-06 | Clouth Gummiwerke Ag | Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben |
US6138629A (en) * | 1995-08-31 | 2000-10-31 | Isad Electronic Systems Gmbh & Co. Kg | System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this |
US6148784A (en) * | 1995-08-31 | 2000-11-21 | Isad Electronic Systems Gmbh & Co. Kg | Drive systems, especially for a motor vehicle, and method of operating same |
US6149544A (en) * | 1995-08-31 | 2000-11-21 | Isad Electronic Systems Gmbh & Co. Kg | Drive system for a motor vehicle with a drive unit and electric machine, and method of operating the system |
US6158405A (en) * | 1995-08-31 | 2000-12-12 | Isad Electronic Systems | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method of operating the system |
US6177734B1 (en) | 1998-02-27 | 2001-01-23 | Isad Electronic Systems Gmbh & Co. Kg | Starter/generator for an internal combustion engine, especially an engine of a motor vehicle |
US6199650B1 (en) | 1995-08-31 | 2001-03-13 | Isad Electronic Systems Gmbh & Co. Kg | Drive system, especially for a motor vehicle, and method of operating same |
US6202776B1 (en) | 1995-08-31 | 2001-03-20 | Isad Electronic Systems Gmbh & Co. Kg | Drive system, especially for a motor vehicle, and method of operating same |
US6209692B1 (en) | 1996-08-02 | 2001-04-03 | Isad Electronic Systems Gmbh & Co., Kg | Electric machine for dampening vibrations in a drive train and method of using the same |
US6405701B1 (en) | 1995-08-31 | 2002-06-18 | Isad Electronic Systems Gmbh & Co. Kg | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method for this |
EP0964985B1 (de) * | 1997-03-06 | 2002-07-10 | Continental ISAD Electronic Systems GmbH & Co. oHG | Antriebssystem, insbesondere für ein kraftfahrzeug und verfahren zur steuerung der leerlaufdrehzahl eines verbrennungsmotors |
DE10261437B4 (de) * | 2002-01-03 | 2005-04-21 | General Motors Corp., Detroit | Steuerung zur Resonanzschwingungsunterdrückung für einen Kraftfahrzeug-Antriebsstrang |
DE4447574B4 (de) * | 1994-02-28 | 2006-07-13 | Temic Automotive Electric Motors Gmbh | Verfahren zur aktiven Schwingungsdämpfung und ein System zu dessen Durchführung |
DE19608992B4 (de) * | 1996-03-08 | 2007-12-06 | Robert Bosch Gmbh | Generatoranlage für eine Brennkraftmaschine |
WO2009039172A2 (en) | 2007-09-17 | 2009-03-26 | Cummins Power Generation, Inc. | Active control of torsional vibration from an engine driven generator set |
EP2073195A1 (de) * | 2007-12-17 | 2009-06-24 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren und Vorrichtung zum Unterdrücken, zumindest aber zum Verringern von störenden Vibrationen in einem motorbetriebenen Gerät, insbesondere einem Hausgerät |
DE102006042593B4 (de) * | 2005-09-12 | 2013-06-27 | Denso Corporation | Generator für Fahrzeuge |
DE102014203727A1 (de) * | 2014-02-28 | 2015-09-03 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben eines Antriebsstrangs für ein Kraftfahrzeug, Antriebsstrang und Kraftfahrzeug |
WO2016012360A3 (de) * | 2014-07-25 | 2016-04-21 | Robert Bosch Gmbh | Verfahren zum betreiben einer zumindest generatorisch betreibbaren elektrischen maschine und mittel zu dessen implementierung |
US9758170B2 (en) | 2015-09-28 | 2017-09-12 | Ford Global Technologies, Llc | Coordinated control of transmission and accessories |
DE102016219147A1 (de) | 2016-10-04 | 2018-04-05 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Reduzierung von Schall und/oder Drehmomentwelligkeit bei fremderregten elektrischen Maschinen |
US10071725B2 (en) | 2015-08-05 | 2018-09-11 | Toyota Jidosha Kabushiki Kaisha | Driving-force control device for vehicle |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020052322A (ko) * | 2000-12-26 | 2002-07-04 | 이계안 | 자동차의 엔진 진동 저감 장치 |
KR20040026830A (ko) * | 2002-09-26 | 2004-04-01 | 현대자동차주식회사 | 차량의 진동 소음 저감 방법 |
KR100812416B1 (ko) * | 2006-11-29 | 2008-03-10 | 현대자동차주식회사 | 정차 중인 차량의 진동 감소 방법 |
JP6223038B2 (ja) * | 2013-07-25 | 2017-11-01 | ダイハツ工業株式会社 | 内燃機関の制御装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212723A (ja) * | 1987-02-27 | 1988-09-05 | Hitachi Ltd | 内燃機関のトルク制御装置 |
US4808863A (en) * | 1987-07-15 | 1989-02-28 | The Boeing Company | Active control system and method for reducing engine noise and vibration |
EP0372590A1 (en) * | 1988-12-05 | 1990-06-13 | The Boeing Company | Active control system and method for reducing engine noise and vibration |
-
1989
- 1989-12-02 JP JP1314066A patent/JPH03178599A/ja active Pending
-
1990
- 1990-11-30 DE DE4038301A patent/DE4038301A1/de not_active Withdrawn
- 1990-12-03 KR KR1019900019766A patent/KR910011505A/ko not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63212723A (ja) * | 1987-02-27 | 1988-09-05 | Hitachi Ltd | 内燃機関のトルク制御装置 |
US4808863A (en) * | 1987-07-15 | 1989-02-28 | The Boeing Company | Active control system and method for reducing engine noise and vibration |
US5049768A (en) * | 1987-07-15 | 1991-09-17 | The Boeing Company | Reducing engine noise by active oscillatory torque control |
EP0372590A1 (en) * | 1988-12-05 | 1990-06-13 | The Boeing Company | Active control system and method for reducing engine noise and vibration |
Cited By (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4412945A1 (de) * | 1992-10-16 | 1995-10-19 | Heidelberger Druckmasch Ag | Vorrichtung und Verfahren zur Dämpfung von mechanischen Schwingungen von Druckmaschinen |
DE4412945B4 (de) * | 1992-10-16 | 2013-05-29 | Heidelberger Druckmaschinen Ag | Vorrichtung und Verfahren zur Dämpfung von mechanischen Schwingungen von Druckmaschinen |
EP0604979A2 (en) * | 1992-12-28 | 1994-07-06 | Nippondenso Co., Ltd. | Vibration damping control apparatus for vehicle |
EP0604979A3 (en) * | 1992-12-28 | 1996-08-28 | Nippon Denso Co | Vibration damping control apparatus for vehicle. |
EP0661791A2 (en) * | 1993-12-28 | 1995-07-05 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling output of vehicular AC generator |
EP0661791A3 (en) * | 1993-12-28 | 1995-12-13 | Mitsubishi Electric Corp | Control device for a vehicle AC generator. |
US5581172A (en) * | 1993-12-28 | 1996-12-03 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for controlling output of vehicular AC generator |
CN1041041C (zh) * | 1993-12-28 | 1998-12-02 | 三菱电机株式会社 | 用于控制车辆交流发电机输出的装置 |
DE4447574B4 (de) * | 1994-02-28 | 2006-07-13 | Temic Automotive Electric Motors Gmbh | Verfahren zur aktiven Schwingungsdämpfung und ein System zu dessen Durchführung |
EP0725473A2 (en) * | 1995-01-31 | 1996-08-07 | Nippondenso Co., Ltd. | Vehicle power generating apparatus |
EP0725473A3 (en) * | 1995-01-31 | 1997-02-26 | Nippon Denso Co | Power supply system for vehicles |
US5767636A (en) * | 1995-01-31 | 1998-06-16 | Nippondenso Co., Ltd. | Vehicle power generating apparatus |
US6405701B1 (en) | 1995-08-31 | 2002-06-18 | Isad Electronic Systems Gmbh & Co. Kg | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method for this |
US6487998B1 (en) | 1995-08-31 | 2002-12-03 | Isad Electronic Systems Gmbh & Co., Kg | Drive system, particularly for a motor vehicle, and process for operating it |
US6158405A (en) * | 1995-08-31 | 2000-12-12 | Isad Electronic Systems | System for actively reducing rotational nonuniformity of a shaft, in particular, the drive shaft of an internal combustion engine, and method of operating the system |
DE19532164A1 (de) * | 1995-08-31 | 1997-03-06 | Clouth Gummiwerke Ag | Antriebssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben desselben |
US6199650B1 (en) | 1995-08-31 | 2001-03-13 | Isad Electronic Systems Gmbh & Co. Kg | Drive system, especially for a motor vehicle, and method of operating same |
US6202776B1 (en) | 1995-08-31 | 2001-03-20 | Isad Electronic Systems Gmbh & Co. Kg | Drive system, especially for a motor vehicle, and method of operating same |
US6149544A (en) * | 1995-08-31 | 2000-11-21 | Isad Electronic Systems Gmbh & Co. Kg | Drive system for a motor vehicle with a drive unit and electric machine, and method of operating the system |
US6281646B1 (en) | 1995-08-31 | 2001-08-28 | Isad Electronic Systems Gmbh & Co. Kg | Drive system with drive-motor, electric machine and battery |
US6148784A (en) * | 1995-08-31 | 2000-11-21 | Isad Electronic Systems Gmbh & Co. Kg | Drive systems, especially for a motor vehicle, and method of operating same |
US6138629A (en) * | 1995-08-31 | 2000-10-31 | Isad Electronic Systems Gmbh & Co. Kg | System for actively reducing radial vibrations in a rotating shaft, and method of operating the system to achieve this |
DE19608992B4 (de) * | 1996-03-08 | 2007-12-06 | Robert Bosch Gmbh | Generatoranlage für eine Brennkraftmaschine |
US6209692B1 (en) | 1996-08-02 | 2001-04-03 | Isad Electronic Systems Gmbh & Co., Kg | Electric machine for dampening vibrations in a drive train and method of using the same |
EP0964985B1 (de) * | 1997-03-06 | 2002-07-10 | Continental ISAD Electronic Systems GmbH & Co. oHG | Antriebssystem, insbesondere für ein kraftfahrzeug und verfahren zur steuerung der leerlaufdrehzahl eines verbrennungsmotors |
US6177734B1 (en) | 1998-02-27 | 2001-01-23 | Isad Electronic Systems Gmbh & Co. Kg | Starter/generator for an internal combustion engine, especially an engine of a motor vehicle |
DE10261437B4 (de) * | 2002-01-03 | 2005-04-21 | General Motors Corp., Detroit | Steuerung zur Resonanzschwingungsunterdrückung für einen Kraftfahrzeug-Antriebsstrang |
DE102006042593B4 (de) * | 2005-09-12 | 2013-06-27 | Denso Corporation | Generator für Fahrzeuge |
EP2201232A4 (en) * | 2007-09-17 | 2017-05-24 | Cummins Power Generation Inc. | Active control of torsional vibration from an engine driven generator set |
WO2009039172A2 (en) | 2007-09-17 | 2009-03-26 | Cummins Power Generation, Inc. | Active control of torsional vibration from an engine driven generator set |
EP2073195A1 (de) * | 2007-12-17 | 2009-06-24 | BSH Bosch und Siemens Hausgeräte GmbH | Verfahren und Vorrichtung zum Unterdrücken, zumindest aber zum Verringern von störenden Vibrationen in einem motorbetriebenen Gerät, insbesondere einem Hausgerät |
DE102014203727A1 (de) * | 2014-02-28 | 2015-09-03 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben eines Antriebsstrangs für ein Kraftfahrzeug, Antriebsstrang und Kraftfahrzeug |
WO2016012360A3 (de) * | 2014-07-25 | 2016-04-21 | Robert Bosch Gmbh | Verfahren zum betreiben einer zumindest generatorisch betreibbaren elektrischen maschine und mittel zu dessen implementierung |
CN106537757A (zh) * | 2014-07-25 | 2017-03-22 | 罗伯特·博世有限公司 | 用于运行至少发电地能够运行的电机的方法以及用于施行该方法的器件 |
US9991816B2 (en) | 2014-07-25 | 2018-06-05 | Seg Automotive Germany Gmbh | Method for operating an at least generator-operable electric motor and means for the implementation thereof |
CN106537757B (zh) * | 2014-07-25 | 2019-02-15 | 索恩格汽车德国有限责任公司 | 用于运行至少发电地能够运行的电机的方法以及用于施行该方法的器件 |
US10071725B2 (en) | 2015-08-05 | 2018-09-11 | Toyota Jidosha Kabushiki Kaisha | Driving-force control device for vehicle |
DE102016114339B4 (de) | 2015-08-05 | 2022-05-05 | Toyota Jidosha Kabushiki Kaisha | Antriebskraft-Steuervorrichtung für ein Fahrzeug |
US9758170B2 (en) | 2015-09-28 | 2017-09-12 | Ford Global Technologies, Llc | Coordinated control of transmission and accessories |
DE102016219147A1 (de) | 2016-10-04 | 2018-04-05 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Reduzierung von Schall und/oder Drehmomentwelligkeit bei fremderregten elektrischen Maschinen |
Also Published As
Publication number | Publication date |
---|---|
KR910011505A (ko) | 1991-08-07 |
JPH03178599A (ja) | 1991-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8125 | Change of the main classification |
Ipc: F16F 15/03 |
|
8130 | Withdrawal |