KR920704406A - 파워 스티어링 차량용 유도 모터 추진 시스템 - Google Patents

파워 스티어링 차량용 유도 모터 추진 시스템

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Publication number
KR920704406A
KR920704406A KR1019920701435A KR920701435A KR920704406A KR 920704406 A KR920704406 A KR 920704406A KR 1019920701435 A KR1019920701435 A KR 1019920701435A KR 920701435 A KR920701435 A KR 920701435A KR 920704406 A KR920704406 A KR 920704406A
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South Korea
Prior art keywords
motor
speed
power
signal
propulsion system
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KR1019920701435A
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English (en)
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엘. 죠셉 크레이그
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리챠드 비. 미그리
에프 엠 씨 코포레이션
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Publication of KR920704406A publication Critical patent/KR920704406A/ko

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Classifications

    • 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
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/46—Series type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/13—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines using AC generators and AC motors
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/04—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/12—Induction machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Multiple Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Power Steering Mechanism (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

내용 없음.

Description

파워 스티어링 차량용 유도 모터 추진 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 전기적 재생 스티어링 및 제동을 갖는 본 발명의 전기적 구동 차량 추진 시스템의 블럭도,
제2도는 엔진 속도 모터 파워 출력, 교류 발전기 출력 전압, 차량 제동을 제어하고 차량의 제1사이드를 파워 스티어링하는 전기회로 블럭도와, 제2도의 중복부분을 포함하며, 차량의 제2사이드에 대해 파워 및 스티어링을 제공함을 표시하는 또다른 전기 회로의 블럭도,
제3A도 및 제3B도는 제2도의 상세부를 도시하는 전기 회로도,

Claims (15)

  1. 회전자 및 다수의 고정자 권선을 가진 유도 모터와, 회전자 속도에 비례하는 신호를 발생하는 수단과, 소망 회전자 속도 신호를 공급하는 수단과, 상기 회전자 속도 신호와 소망속도 신호를 비교하여 차신호(difference signal)를 발생하는 수단과, 상기 유도 모터 속도를 소망값에 설정하기 위해 전류 펄스를 상기 고정자 권선에 제공하도록 상기 차 신호를 이용하는 수단을 포함하는 광범위의 모터 속도상에서 모터 속도 및 파워를 제어하는 전기 추진 시스템.
  2. 제1항에 있어서, 상기 전류 펄스 사이의 시간 동안 고정자 전류를 제공하도록 상기 고정자 권선의 인덕턴스를 이용하는 수단을 포함하는 전기 추진 시스템.
  3. 제1항에 있어서, 상기 엔진과 상기 유도 모터에 결합된 엔진과 교류발전기를 포함하며, 상기 엔진 속도를 제어하고 상기 모터에서 상기 교류 발전기에 의해 공급된 전류량을 제어하기 위해 상기 차 신호를 감지하는 것을 수단을 포함하는 전기 추진 시스템.
  4. 제1항에 있어서, 상기 모터에 의해 발생된 파워량을 결정하도록 상기 전류 펄스 폭을 제어하는 수단을 포함하는 전기 추진 시스템.
  5. 제1항에 있어서, 상기 모터 속도를 결정하기 위해 상기 전류 펄스 주파수를 제어하는 수단을 포함하는 전기 추진 시스템.
  6. 속도 명령 신호 및 스티어링 명령 신호에 응답하여 한쌍의 차량 구동 휠에 파워를 공급하기 위한 파워 스티어링 차량용 전기 추진 시스템에서, 상기 시스템은 제1 및 제2전기유도 모터와, 상기 제1모터를 제1차량 구동 휠에 결합하고 상기 제2모터를 제2차량 구동 휠에 결합하기 위한 수단과, 상기 제1차량 구동 휠의 속도를 감지하여 제1구동 속도 신호를 발생하기 위한 수단과, 상기 제1구동 속도 신호를 제1모터 제어 신호를 발생하는 스티어링 명령 신호 및 속도 명령 신호와 결합하기 위한 수단과, 전력을 상기 제1 및 제2모터에 공급하기 위한 dc 파워 버스와, 상기 제1모터를 이 제1모터 속도를 제어하는 파워 버스에 결합하도록 상기 제1모터 제어 신호를 이용하는 수단과, 상기 제2차량 구동 휠 속도를 감지하여 제2구동 속도 신호를 발생하는 수단과, 제2모터 제어 신호를 발생하는 상기 스티어링 명령 신호 및 상기 속도 명령신호와 상기 제2구동 속도 신호를 결합하는 수단과, 상기 제2모터를 상기 제2모터 속도를 제어하는 상기 파워 버스에 결합하기 위해 상기 제2모터 제어 신호를 이용하는 수단을 포함하는 전기 추진 시스템.
  7. 제6항에 있어서, 상기 결합 모터의 속도가 모터 제어 신호에 의해 요구된 속도보다 클때 상기 제1 및 제2모터중 어느 하나에서 상기 dc 파워 버스로 파워를 결합하기 위한 수단을 포함하는 것을 특징으로 하는 전기 추진 시스템.
  8. 제7항에 있어서, 상기 모터중 하나에서 상기 dc 파워 버스까지 결합된 파워는 상기 모터상에서 제동작용을 제공하는 전기 추진 시스템.
  9. 제6항에 있어서, 차량이 선회할시 내부 모터에서 상기 dc 파워 버스까지 파워를 결합하기 위한 수단을포함하며, 상기 결합 파워가 상기 선회간 외부 모터에 가산된 파워를 제공하는 전기 추진 시스템.
  10. 속도 명령 신호 및 스티어링 명령신호에 응답하여 좌,우 차량 구동휠에 파워를 공급하기 위한 파워 스티어링 차량용 전기 추진 시스템으로, 상기 시스템의 회전자와 다수의 고정자 권선을 가진 제1 및 제2전기 유도모터와, 좌측 구동회리에 상기 제1모터를, 우측 구동횔에 상기 제2모터를 결합하기 위한 수단과, 상기 좌측 구동휠의 속도를 감지하여 좌측 구동속도 신호를 발생하는 수단과, 좌측 모터 제어 신호를 발생하는 스티어링 명령신호 및 속도 명령 신호와 상기 좌측 구동 속도 신호를 결합하기 위한 수단과, 상기 제1모터를 동작하기 위하여 상기 제1모터의 상기 고정자 권선에 다수의 전류 펄스를 제공하도록 상기 좌측 모터 제어 신호를 이용하는 좌측 파워 브릿지와, 상기 우측 구동 휠의 속도를 감지함으로써 우측 구동 속도 신호를 발생하는 수단과, 우측 모터 제어 신호를 발생하기 위하여 상기스티어링 명령 신호 및 상기 속도 명령 신호와 상기 우측 구동 속도 신호를 결합하는 수단과, 상기 제2모터를 동작하기 위하여 상기 제2모터의 상기 고정자 권선에 다수의 전류 펄스를 제공하도록 상기 후측 모터 제어 신호를 이용하는 우측 파워 브릿지를 포함하는 전기 추진 시스템.
  11. 제10항에 있어서, 상기 전류 펄스간 고정자 전류를 제공하기 위하여 상기 고정자 권선의 인덕턴스를 이용하는 수단을 포함하는 전기 추진 시스템.
  12. 제10항에 있어서, 상기 제1 및 제2모터에 파워를 제공하는 상기 우측 및 좌측 파워 브릿지를 파워를 제공하도록 접속된 dc 파워 버스를 포함하며, 상기 제1 및 제2모터는 상기 모터 속도가 모터 제어 신호에 의해서 요구된 속도보다 클때 상기 dc 파워 버스로 파워를 복구하고, 상기 복구 파워로 상기 모터에 제동작용을 제공하는 전지 추진 시스템.
  13. 제10항에 있어서, 각각의 상기 모터에서 상기 전류 펄스 주파수는 대응모터 속도를 한정하고 상기 전류 펄스의 폭이 상기 대응 모터에 의해 발생되는 파워량을 결정하는 전기 추진 시스템.
  14. 제10항에 있어서, 비교적 타이트한 선회시 차량을 스티어링함으로써 내부적으로 상기 선회 구동 휠에 접속된 모터가 상기 dc 파워 버스에 가산된 파워를 제공하며, 상기 가산된 파워로 외부에서 상기 선회의 구동휠에 접속된 모터의 개선된 동작을 야기하는 전기 추진 시스템.
  15. 제10항에 있어서, 상기 좌,우측 파워 브릿지에 전력을 제공하기 위한 교류 발전기와, 실제 차량 속도 신호를 발생하는 것을 이용한 수단과, 엔진 속도를 제어하는 차속도 신호를 발생하도록 속도 명령 신호와 상기 실제 차량 속도 신호를 이용하는 수단을 포함하는 전기 추진 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019920701435A 1990-10-24 1991-09-30 파워 스티어링 차량용 유도 모터 추진 시스템 KR920704406A (ko)

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US602839 1990-10-24
US07/602,839 US5162707A (en) 1990-10-24 1990-10-24 Induction motor propulsion system for powering and steering vehicles
PCT/US1991/007203 WO1992008278A1 (en) 1990-10-24 1991-09-30 Induction motor propulsion system for powering and steering vehicles

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TR27292A (tr) 1994-12-28
IL99832A (en) 1995-08-31
AU650926B2 (en) 1994-07-07
US5289100A (en) 1994-02-22
IL99832A0 (en) 1992-08-18
US5162707A (en) 1992-11-10
EP0506938A4 (en) 1993-07-28
EP0506938A1 (en) 1992-10-07
AU8925491A (en) 1992-05-26
CA2070643A1 (en) 1992-04-25
NO922415D0 (no) 1992-06-19
JPH05503833A (ja) 1993-06-17
WO1992008278A1 (en) 1992-05-14
TW221044B (ko) 1994-02-11

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