KR20200069854A - Dual-motor drive system for electric vehicle - Google Patents

Dual-motor drive system for electric vehicle Download PDF

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KR20200069854A
KR20200069854A KR1020180157383A KR20180157383A KR20200069854A KR 20200069854 A KR20200069854 A KR 20200069854A KR 1020180157383 A KR1020180157383 A KR 1020180157383A KR 20180157383 A KR20180157383 A KR 20180157383A KR 20200069854 A KR20200069854 A KR 20200069854A
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South Korea
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driving
connecting member
power transmission
main
auxiliary
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KR1020180157383A
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Korean (ko)
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KR102133767B1 (en
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손병래
좌승현
백승모
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호남대학교 산학협력단
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    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/04—Gearings for conveying rotary motion by endless flexible members with ropes
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/0007—Applications not otherwise provided for
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/50—Drive Train control parameters related to clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric 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
    • Y02T10/72—Electric energy management in electromobility

Abstract

The present invention relates to a dual-motor drive system for an electric vehicle and, more specifically, to a dual-motor drive system for an electric vehicle which drives a vehicle by two drive motors and transfers power to only one drive motor as needed to increase driving efficiency. According to the present invention, the dual-motor drive system for an electric vehicle comprises: a main drive motor to drive by electricity to transfer driving power to an electric vehicle; an auxiliary drive motor to provide driving power of the electric vehicle with the main drive motor; a main shaft to transfer driving power to wheels to drive the electric vehicle; a main power transfer unit to transfer driving power of the main drive motor to the main shaft; an auxiliary power transfer unit to transfer driving power of the auxiliary drive motor to the main shaft; a control unit to limit driving of the auxiliary drive motor in accordance with a selection signal of a driver or a driving condition of the vehicle; and a clutch unit to allow or block power connection of the auxiliary power transfer unit and the main shaft depending on whether the auxiliary drive motor drives.

Description

전기 차량용 듀얼모터 구동 시스템 {Dual-motor drive system for electric vehicle}Dual-motor drive system for electric vehicle

본 발명은 전기 차량용 듀얼모터 구동 시스템에 관한 것으로, 더욱 상세하게는 두 개의 구동모터를 통해 차량을 구동하면서도 필요에 따라 하나의 구동모터만으로 동력을 전달하여 구동효율을 높일 수 있는 전기 차량용 듀얼모터 구동 시스템에 관한 것이다. The present invention relates to a dual-motor driving system for an electric vehicle, and more specifically, to drive a vehicle through two driving motors, but also to drive a dual-motor for an electric vehicle that can increase driving efficiency by transmitting power with only one driving motor as needed. It's about the system.

전기자동차(Electric vehicle ; EV)는 주로 배터리의 전원을 이용하여 AC 또는 DC모터를 구동하여 동력을 얻는 자동차로서 가솔린 자동차가 출현되기 훨씬 이전인 1873년 영국의 알 데이비슨(R. Davidson)에 의해 최초로 제작되었으나 1차 세계대전 후 가솔린 자동차의 급속한 발전으로 인하여 일반의 관심에서 멀어져 자취를 감추게 되었다. 그러나 80년대에 이르러 자동차 배출가스에 의한 공해문제가 대두되면서 그 해법으로 전기자동차의 사용이 제시되었으나, 축전지 기술부족으로 상용화가 미루어져왔다. 이에, 90년대 초반에 이르러 축전지 신기술의 가능성이 창출되며 미국을 중심으로 급속하게 전기자동차의 개발이 추진되었다. Electric vehicles (EVs) are primarily vehicles powered by AC or DC motors using battery power, and were first developed by R. Davidson of England in 1873, long before the appearance of gasoline vehicles. It was produced, but after the First World War, the rapid development of gasoline cars made it disappear from the general public and disappeared. However, in the 80's, as the pollution problem caused by automobile emissions emerged, the use of electric vehicles was suggested as the solution, but commercialization has been delayed due to the lack of battery technology. Accordingly, in the early 90s, the possibility of new battery technology was created, and the development of electric vehicles was rapidly promoted mainly in the United States.

오늘날 미국의 Tesla로 대변되는 고성능 고효율 전기차 시장이 본격화되면서 고성능과 고효율을 모두 추구하는 방향으로의 기술 개발이 진행되고 있다.Today, as the market for high-performance, high-efficiency electric vehicles represented by Tesla in the US is in full swing, technology development in the direction of pursuing both high-performance and high efficiency is progressing.

한국등록특허 제10-145487호 : 듀얼 저용량 전기모터와 변속형 기어박스를 적용한 하이브리드 전기 자동차의 구동 시스템Korean Registered Patent No. 10-145487: Driving system of hybrid electric vehicle using dual low-capacity electric motor and variable speed gearbox 한국등록특허 제10-1454868호 : 듀얼 전기모터를 적용한 하이브리드 전기 자동차의 구동 시스템Korean Registered Patent No. 10-1454868: Driving system of hybrid electric vehicle using dual electric motors

본 발명은 듀얼 모터를 적용하는 전기자동차에서 동력 성능의 효율성을 높이기 위해 상황에 따라 두 개의 모터 중 어느 하나만 구동시키고, 다른 하나의 모터와의 동력 연결을 차단할 수 있는 전기 차량용 듀얼모터 구동 시스템을 제공하는데 그 목적이 있다. The present invention provides a dual motor driving system for an electric vehicle capable of driving only one of two motors depending on the situation and blocking power connection with the other motor in order to increase the efficiency of power performance in an electric vehicle applying a dual motor. There is a purpose.

본 발명에 따른 전기 차량용 듀얼모터 구동 시스템은 전기 차량에 구동력을 전달하기 위해 전기에 의해 구동하는 메인구동모터와, 상기 메인구동모터와 함께 상기 전기 차량의 구동력을 제공하는 보조구동모터와, 상기 전기차량이 주행하도록 바퀴에 구동력을 전달하는 메인샤프트와, 상기 메인구동모터의 구동력을 상기 메인샤프트로 전달하는 메인동력전달부와, 상기 보조구동모터의 구동력을 상기 메인샤프트로 전달하는 보조동력전달부와, 차량의 주행조건에 따라 또는 운전자의 선택신호에 따라 상기 보조구동모터의 구동을 제한하는 제어부와, 상기 보조구동모터의 구동여부에 따라 상기 메인샤프트와 보조동력전달부의 동력 연결을 허용하거나 차단하는 클러치부를 포함한다.A dual motor driving system for an electric vehicle according to the present invention includes a main driving motor driven by electricity to transmit driving power to an electric vehicle, an auxiliary driving motor providing driving power of the electric vehicle together with the main driving motor, and the electricity The main shaft transmitting the driving force to the wheel to drive the vehicle, the main power transmitting unit transmitting the driving power of the main driving motor to the main shaft, and the auxiliary power transmitting unit transmitting the driving power of the auxiliary driving motor to the main shaft And, according to the driving conditions of the vehicle or a control signal for limiting the driving of the auxiliary drive motor according to the driver's selection signal, and the main shaft and the auxiliary power transmission unit to allow or block the power connection according to whether the driving of the auxiliary drive motor It includes a clutch portion.

상기 메인동력전달부는 상기 메인구동모터의 메인구동축과 연결되는 제1 구동연결부재와, 상기 메인샤프트에 설치되는 제1 종동연결부재와, 상기 제1 구동연결부재와 제1 종동연결부재를 연결하는 제1 동력전달부재를 포함하는 것이 바람직하다. The main power transmission unit connects a first driving connecting member connected to the main driving shaft of the main driving motor, a first driven connecting member installed in the main shaft, and the first driving connecting member and the first driven connecting member. It is preferred to include a first power transmission member.

상기 보조동력전달부는 상기 보조구동모터의 보조구동축과 연결되는 제2 구동연결부재와, 상기 메인샤프트에 설치되는 제2 종동연결부재와, 상기 제2 구동연결부재와 제2 종동연결부재를 연결하는 제2 동력전달부재를 포함할 수 있다. The auxiliary power transmission unit connects a second driving connecting member connected to the auxiliary driving shaft of the auxiliary driving motor, a second driven connecting member installed on the main shaft, and the second driving connecting member and the second driven connecting member. It may include a second power transmission member.

상기 제1 구동연결부재와 제1 종동연결부재는 스프로킷이고, 상기 제1 동력전달부재는 체인인 것이 바람직하다.Preferably, the first drive connecting member and the first driven connecting member are sprockets, and the first power transmission member is a chain.

상기 제1 구동연결부재와 제1 종동연결부재는 풀리이고, 상기 제1 동력전달부재는 벨트일 수 있다. The first driving connecting member and the first driven connecting member may be pulleys, and the first power transmission member may be a belt.

상기 제2 구동연결부재와 제2 종동연결부재는 스프로킷이고, 상기 제2 동력전달부재는 체인인 것이 바람직하다. Preferably, the second drive connecting member and the second driven connecting member are sprockets, and the second power transmission member is a chain.

상기 제2 구동연결부재와 제2 종동연결부재는 풀리이고, 상기 제2 동력전달부재는 벨트로 형성될 수 있다. The second drive connection member and the second driven connection member are pulleys, and the second power transmission member may be formed of a belt.

상기 제어부는 상기 메인동력전달부와 보조동력전달부의 구동속도를 측정하는 센서부를 더 구비하고, 상기 제어부는 상기 센서부의 측정신호에 따라 상기 클러치부의 구동 및 상기 메인구동모터 또는 보조구동모터에 공급되는 전원을 제어하도록 형성될 수 있다. The control unit further includes a sensor unit for measuring the driving speed of the main power transmission unit and the auxiliary power transmission unit, and the control unit is supplied to the driving of the clutch unit and the main driving motor or the auxiliary driving motor according to the measurement signal of the sensor unit. It can be formed to control the power.

상기 메인동력전달부는 상기 메인구동모터의 메인구동축과 연결되는 제1 구동연결부재와, 상기 메인샤프트에 설치되는 제1 종동연결부재와, 상기 제1 구동연결부재와 제1 종동연결부재를 연결하는 제1 동력전달부재를 포함하고, 상기 보조동력전달부는 상기 보조구동모터의 보조구동축과 연결되는 제2 구동연결부재와, 상기 메인샤프트에 설치되는 제2 종동연결부재와, 상기 제2 구동연결부재와 제2 종동연결부재를 연결하는 제2 동력전달부재를 포함하며, 상기 센서부는 상기 제1 구동연결부재와 제2 구동연결부재의 회전속도를 감지하는 광센서로 형성될 수 있다. The main power transmission unit connects a first driving connecting member connected to the main driving shaft of the main driving motor, a first driven connecting member installed in the main shaft, and the first driving connecting member and the first driven connecting member. It includes a first power transmission member, the auxiliary power transmission unit is a second drive connection member connected to the auxiliary drive shaft of the auxiliary drive motor, a second driven connection member installed on the main shaft, the second drive connection member And a second power transmission member connecting the second driven connection member, and the sensor unit may be formed of an optical sensor that senses rotational speeds of the first drive connection member and the second drive connection member.

상기 제1 구동연결부재와 제2 구동연결부재는 각각 스프로킷이고, 상기 센서부는 상기 제1 구동연결부재와 제2 구동연결부재의 사이에 마련되는 센서본체와, 상기 센서본체에 설치되는 레이저 발진기와, 상기 레이저 발진기에서 발진된 레이저를 상기 제1 구동연결부재 또는 제2 구동연결부재 측으로 반사할 수 있도록 반사면이 형성되어 있고, 회전하는 회전반사체와, 상기 회전반사체에 반사된 후 상기 제1 구동연결부재 또는 제2 구동연결부재를 향해 발진된 레이저가 상기 제1 구동연결부재 또는 제2 구동연결부재에 반사되면, 반사된 레이저를 수광하는 수광기와, 상기 레이저 발진기에서 발진된 후 되돌아 오는 반사 레이저의 수신 시간차를 통해 상기 제1 구동연결부재 및 제2 구동연결부재의 회전 속도를 계산하는 정보처리부를 포함하도록 형성될 수 있다. Each of the first driving connecting member and the second driving connecting member is a sprocket, and the sensor unit includes a sensor body provided between the first driving connecting member and the second driving connecting member, and a laser oscillator installed in the sensor body. , A reflecting surface is formed so as to reflect the laser oscillated by the laser oscillator toward the first driving connecting member or the second driving connecting member, and the rotating reflector rotating, and the first driving after being reflected by the rotating reflector When the laser oscillated toward the connecting member or the second driving connecting member is reflected on the first driving connecting member or the second driving connecting member, the light receiving unit receives the reflected laser, and the reflection returning after being emitted by the laser oscillator It may be formed to include an information processing unit for calculating the rotational speed of the first driving connecting member and the second driving connecting member through the time difference of the laser reception.

본 발명의 전기 차량용 듀얼모터 구동 시스템은 속도와 토크의 변화가 다양한 전기차량의 주행조건에 따라 각각의 상황에 맞도록 두 개의 모터 또는 하나의 모터만을 선택적으로 구동함으로써 동력성능과 구동 효율을 높일 수 있는 이점이 있다. The dual-motor drive system for an electric vehicle according to the present invention can improve power performance and driving efficiency by selectively driving only two motors or only one motor so that the speed and torque are changed according to driving conditions of various electric vehicles. There is an advantage.

도 1은 본 발명의 전기 차량용 듀얼모터 구동 시스템의 일 실시예의 사시도,
도 2는 도 1의 전기 차량용 듀얼모터 구동 시스템의 개념도,
도 3은 도 1의 전기 차량용 듀얼모터 구동 시스템의 구동 관계를 표시한 블럭도,
도 4는 본 발명의 전기 차량용 듀얼모터 구동 시스템의 다른 실시예의 개념도,
도 5는 도 4의 전기 차량용 듀얼모터 구동 시스템의 센서부의 구성을 개략적으로 표시한 개념도,
도 6은 도 4의 전기 차량용 듀얼모터 구동 시스템의 구동 관계를 표시한 블럭도이다. 1 is a perspective view of an embodiment of a dual motor drive system for an electric vehicle of the present invention,
2 is a conceptual diagram of a dual motor driving system for the electric vehicle of FIG. 1,
3 is a block diagram showing a driving relationship of the dual-motor driving system for an electric vehicle of FIG. 1,
4 is a conceptual diagram of another embodiment of the dual-motor drive system for an electric vehicle of the present invention,
5 is a conceptual diagram schematically showing the configuration of the sensor unit of the dual-motor drive system for an electric vehicle of FIG. 4,
FIG. 6 is a block diagram showing a driving relationship of the dual motor driving system for the electric vehicle of FIG. 4.

이하, 첨부한 도면을 참조하여 본 발명의 실시예에 따른 전기 차량용 듀얼모터 구동 시스템에 대해 상세히 설명한다. 본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는 바, 특정 실시 예들을 도면에 예시하고 본문에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 각 도면을 설명하면서 유사한 참조부호를 유사한 구성요소에 대해 사용하였다. 첨부된 도면에 있어서, 구조물들의 치수는 본 발명의 명확성을 기하기 위하여 실제보다 확대하여 도시한 것이다. Hereinafter, a dual motor driving system for an electric vehicle according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention can be applied to various changes and may have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosure form, and it should be understood as including all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals are used for similar components. In the accompanying drawings, the dimensions of the structures are shown to be enlarged than the actual for clarity of the present invention.

제1, 제2 등의 용어는 다양한 구성요소들을 설명하는데 사용될 수 있지만, 상기 구성요소들은 상기 용어들에 의해 한정되어서는 안 된다. 상기 용어들은 하나의 구성요소를 다른 구성요소로부터 구별하는 목적으로만 사용된다. 예를 들어, 본 발명의 권리 범위를 벗어나지 않으면서 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소도 제1 구성요소로 명명될 수 있다. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component.

본 출원에서 사용한 용어는 단지 특정한 실시 예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, "포함하다" 또는 "가지다" 등의 용어는 명세서 상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.Terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as “include” or “have” are intended to indicate the presence of features, numbers, steps, actions, elements, parts or combinations thereof described in the specification, but one or more other features. It should be understood that the presence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥 상 가지는 의미와 일치하는 의미를 가지는 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms such as those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

도 1 내지 도 3에는 본 발명의 전기 차량용 듀얼모터 구동 시스템(100)의 제1 실시예가 도시되어 있다. 1 to 3 show a first embodiment of a dual motor driving system 100 for an electric vehicle of the present invention.

도면을 참조하면, 본 실시예의 전기 차량용 듀얼모터 구동 시스템(100)은 전기 차량에 구동력을 전달하기 위한 메인구동모터(100)와 보조구동모터(200), 전기 차량의 구동을 위해 바퀴와 연결되는 메인샤프트(300)와, 메인구동모터(100) 및 보조구동모터(200)와 메인샤프트(300)를 연결하는 메인동력전달부(400)와 보조동력전달부(500), 주행조건에 따라 보조구동모터(200)의 구동을 제한하는 제어부(700) 및, 메인샤프트(300)와 보조동력전달부(500)의 연결을 단속하는 클러치부(600)를 포함한다.Referring to the drawings, the dual-motor driving system 100 for an electric vehicle according to the present embodiment is connected to a wheel for driving an electric vehicle, a main driving motor 100 and an auxiliary driving motor 200 for transmitting driving force to the electric vehicle The main power transmission unit 400 and the auxiliary power transmission unit 500 that connect the main shaft 300, the main driving motor 100, and the auxiliary driving motor 200 and the main shaft 300, are assisted according to driving conditions It includes a control unit 700 for limiting the driving of the driving motor 200, and a clutch unit 600 for controlling the connection of the main shaft 300 and the auxiliary power transmission unit 500.

상기 메인구동모터(100)와 보조구동모터(200)는 전기에 의해 구동하는 모터이며, 직류전원 또는 교류전원에 의해 회전하는 모터이다. The main driving motor 100 and the auxiliary driving motor 200 are motors driven by electricity, and are motors rotating by DC power or AC power.

상기 메인구동모터(100)는 차량의 주행 과정에서는 상시 구동하는 상시구동모터이고, 보조구동모터(200)는 후술하는 제어부(700)에 의해 필요에 따라 메인구동모터(100)의 구동을 보조한다. The main driving motor 100 is a permanent driving motor that is always driven during the driving process of the vehicle, and the auxiliary driving motor 200 assists the driving of the main driving motor 100 as necessary by the controller 700 described later. .

즉, 고속주행시나 고출력이 필요한 구간에서는 보조구동모터(200)를 구동하고, 저속주행시에는 메인구동모터(100)만을 구동함으로써 에너지 효율을 높인다. That is, when driving at high speed or in a section requiring high power, the auxiliary driving motor 200 is driven, and only the main driving motor 100 is driven at low speed to increase energy efficiency.

상기 메인샤프트(300)는 전기 차량의 바퀴와 연결되어 바퀴의 회전 구동을 하는 것으로, 후술하는 메인동력전달부(400)와 보조동력전달부(500)를 통해 메인구동모터(100)와 보조구동모터(200)의 구동력을 전달받아 회전하며, 이 외전력이 바퀴로 전달된다. The main shaft 300 is connected to the wheel of the electric vehicle to drive the rotation of the wheel, and the main driving motor 100 and the auxiliary driving through the main power transmission unit 400 and the auxiliary power transmission unit 500 to be described later It receives and rotates the driving force of the motor 200, and this external power is transmitted to the wheel.

상기 메인동력전달부(400)와 보조동력전달부(500)는 상술한 것처럼 메인구동모터(100)와 보조구동모터(200)를 메인샤프트(300)와 동력 전달이 가능하도록 연결하는 것이다. The main power transmission unit 400 and the auxiliary power transmission unit 500 is to connect the main driving motor 100 and the auxiliary driving motor 200 to the main shaft 300 to enable power transmission as described above.

메인동력전달부(400)는 상기 메인구동모터(100)의 메인구동축과 연결되는 제1 구동연결부재(410)와, 상기 메인샤프트(300)에 설치되는 제1 종동연결부재(420)와, 상기 제1 구동연결부재(410)와 제1 종동연결부재(420)를 연결하는 제1 동력전달부재(430)를 포함하고, 보조동력전달부(500)는 보조동력전달부(500)는 상기 보조구동모터(200)의 보조구동축과 연결되는 제2 구동연결부재(510)와, 상기 메인샤프트(300)에 설치되는 제2 종동연결부재(520)와, 상기 제2 구동연결부재(510)와 제2 종동연결부재(520)를 연결하는 제2 동력전달부재(530)를 포함한다. The main power transmission unit 400 includes a first driving connecting member 410 connected to a main driving shaft of the main driving motor 100, a first driven connecting member 420 installed on the main shaft 300, A first power transmission member 430 connecting the first drive connection member 410 and the first driven connection member 420, the auxiliary power transmission unit 500, the auxiliary power transmission unit 500 is the The second driving connecting member 510 connected to the auxiliary driving shaft of the auxiliary driving motor 200, the second driven connecting member 520 installed on the main shaft 300, and the second driving connecting member 510 And a second power transmission member 530 connecting the second driven connection member 520.

상기 제1 구동연결부재(410)와 제2 구동연결부재(510)는 각각 메인구동모터(100)와 보조구동모터(200)의 구동축과 연결되는 스프로켓이고, 제1 종동연결부재(420)와 제2 종동연결부재(520)는 메인샤프트(300)에 장착되는 스프로켓이며, 제1 동력전달부재(430)와 제2 동력전달부재(530)는 각각 스프로켓들을 연결하는 체인으로 형성된다. The first driving connecting member 410 and the second driving connecting member 510 are sprockets connected to the driving shafts of the main driving motor 100 and the auxiliary driving motor 200, respectively, and the first driven connecting member 420. The second driven connection member 520 is a sprocket mounted on the main shaft 300, and the first power transmission member 430 and the second power transmission member 530 are formed of chains connecting the sprockets, respectively.

본 실시예에서는 메인동력전달부(400)와 보조동력전달부(500)가 체인과 스프로켓으로 된 동력전달수단인 것으로 도시되어 있으나, 이와는 달리 벨트와 풀리로 동력전달이 이루어지도록 할 수도 있다. In this embodiment, the main power transmission unit 400 and the auxiliary power transmission unit 500 are shown as a power transmission means made of a chain and a sprocket, but unlike this, the power transmission may be performed by a belt and a pulley.

그리고 도시되지는 않았으나, 상기 체인인 제1 동력전달부재(430)와 제2 동력전달부재(530)의 장력유지를 위해 별도의 아이들 스프로켓이 더 마련될 수도 있다. In addition, although not shown, separate idle sprockets may be further provided to maintain the tension of the chains of the first power transmission member 430 and the second power transmission member 530.

상기 제어부(700)는 상술한 것처럼 보조구동모터(200)의 구동을 제어하는 것으로, 운전자의 입력신호에 따라 또는 차량의 주행 조건에 대한 감지 결과와 미리 세팅된 설정 주행조건을 비교하여 자동으로 보조구동모터(200)의 구동을 허용하거나 제한하도록 한다. The control unit 700 controls the driving of the auxiliary driving motor 200 as described above, and automatically assists according to a driver's input signal or by comparing a detection result for a vehicle driving condition with a preset driving condition. To allow or limit the driving of the driving motor 200.

상기 보조구동모터(200)의 구동이 제한되는 경우 메인샤프트(300)는 메인구동모터(100)의 구동력을 통해서만 구동하게 되는데, 상기 보조동력전달부(500)가 메인샤프트(300)의 회전력을 보조구동모터(200)로 전달하여 동력손실이 발생하게 될 수 있으므로, 클러치부(600)를 통해 메인샤프트(300)와 제2 종동연결부재(520)의 연결을 해제하여 메인샤프트(300)의 회전력이 보조구동모터(200) 및 보조동력전달부(500)로 전달되는 것을 차단한다. When the driving of the auxiliary driving motor 200 is limited, the main shaft 300 is driven only through the driving force of the main driving motor 100, and the auxiliary power transmission unit 500 receives the rotational force of the main shaft 300. Since power loss may occur due to transmission to the auxiliary driving motor 200, the connection of the main shaft 300 and the second driven connecting member 520 through the clutch part 600 is released, thereby causing the power loss of the main shaft 300. The rotational force is prevented from being transmitted to the auxiliary driving motor 200 and the auxiliary power transmission unit 500.

도 4 내지 도 6에는 본 발명에 따른 전기 차량용 듀얼모터 구동 시스템(100)의 다른 실시예가 도시되어 있다. 4 to 6 shows another embodiment of the dual motor drive system 100 for an electric vehicle according to the present invention.

본 실시예의 경우 제어부(700)가 메인동력전달부(400)와 보조동력전달부(500)의 구동속도를 측정하는 센서부(800)를 더 구비한다. In the present embodiment, the control unit 700 further includes a sensor unit 800 that measures driving speeds of the main power transmission unit 400 and the auxiliary power transmission unit 500.

본 실시예의 제어부(700)는 메인구동모터(100)와 보조구동모터(200)가 동시에 구동하는 상태에서 센서부(800)에서 측정한 메인동력전달부(400)와 보조동력전달부(500)의 구동속도 정보를 바탕으로 클러치부(600)의 구동 및 메인구동모터(100)와 보조구동모터(200)에 공급되는 전원을 제어한다. The control unit 700 of the present embodiment is the main power transmission unit 400 and the auxiliary power transmission unit 500 measured by the sensor unit 800 while the main driving motor 100 and the auxiliary driving motor 200 are driving at the same time. Based on the driving speed information, the driving of the clutch unit 600 and the power supplied to the main driving motor 100 and the auxiliary driving motor 200 are controlled.

즉, 메인동력전달부(400)보다 보조동력전달부(500)의 구동속도에 속도차가 있으면 전원공급부(900)를 통해 메인구동모터(100) 또는 보조구동모터(200)의 전류량을 높이거나 클러치부(600)를 짧은 시간 가동하여 양쪽 회전속도의 밸런스를 맞춰줌으로, 메인샤프트(300)에 연결되는 메인동력전달부(400)와 보조동력전달부(500)의 속도차를 보정한다. That is, if there is a speed difference in the driving speed of the auxiliary power transmission unit 500 than the main power transmission unit 400, increase the current amount of the main driving motor 100 or the auxiliary driving motor 200 through the power supply unit 900 or the clutch By operating the unit 600 for a short time to balance the rotational speeds of both sides, the speed difference between the main power transmission unit 400 and the auxiliary power transmission unit 500 connected to the main shaft 300 is corrected.

상기 센서부(800)는 도 5에 도시되어 있는 것처럼, 제1 구동연결부재(410)와 제2 구동연결부재(510)의 사이에 마련되는 센서본체(810)와, 센서본체(810)에 설치되는 레이저 발진기(820), 레이저를 제1 구동연결부재(410) 또는 제2 구동연결부재(510) 측으로 반사하는 회전반사체(830), 제1 구동연결부재(410)와 제2 구동연결부재(510)에 반사되어 돌아온 레이저를 수광하는 수광기(840), 레이저의 수신 시간차를 통해 제1 구동연결부재(410)와 제2 구동연결부재(510)의 회전속도를 계산하는 정보처리부(미도시)를 포함한다. The sensor unit 800, as shown in Figure 5, the first drive connecting member 410 and the second drive connecting member 510 is provided between the sensor body 810 and the sensor body 810 is provided The installed laser oscillator 820, the rotating reflector 830 reflecting the laser toward the first driving connecting member 410 or the second driving connecting member 510, the first driving connecting member 410 and the second driving connecting member A receiver 840 for receiving the laser beam reflected by the 510, and an information processing unit for calculating the rotational speeds of the first driving connecting member 410 and the second driving connecting member 510 through a difference in receiving time of the laser (not shown) Poetry).

레이저 발진기(820)는 하나만 마련되어 있으며 회전반사체(830)를 향해 레이저를 발진한다. Only one laser oscillator 820 is provided and oscillates the laser toward the rotating reflector 830.

회전반사체(830)는 외면에 반사면이 형성되어 있는 육면체이고, 회전모터에 의해 회전하게 되는데, 회전에 따라 반사면의 각도가 변하게 되므로, 하나의 레이저 발진기(820)에서 발진된 레이저를 제1 구동연결부재(410) 또는 제2 구동연결부재(510)를 향해 선택적으로 반사할 수 있다. 따라서 하나의 레이저 발진기(820) 만으로 양측의 구동속도를 모두 측정한다. The rotating reflector 830 is a hexahedron having a reflective surface formed on its outer surface, and is rotated by a rotating motor. As the angle of the reflective surface changes with rotation, the laser oscillated by one laser oscillator 820 is first It may selectively reflect toward the driving connecting member 410 or the second driving connecting member 510. Therefore, the driving speeds of both sides are measured by only one laser oscillator 820.

도시되지는 않았으나, 상기 제1 구동연결부재(410)와 제2 구동연결부재(510)에는 센서부(800)를 향해 노출되는 면에 속도 측정을 위한 돌출패턴이 형성되어 있고, 이 돌출패턴에 의해 레이저의 발진시 수광되는 레이저 광의 수신 시간차가 발생한다. Although not shown, the first driving connecting member 410 and the second driving connecting member 510 are formed with a protruding pattern for measuring speed on the surface exposed toward the sensor unit 800, and the protruding pattern Due to this, a reception time difference of the laser light received during the laser oscillation occurs.

정보처리부는 레이저 발진기(820)에서 발진된 레이저가 수광부에서 수광될 때까지의 시간 계산을 통해 돌출패턴의 회전량을 구하고 이를 바탕으로 제1 구동연결부재(410)와 제2 구동연결부재(510)가 회전하는 회전속도를 산출한다. The information processing unit calculates the amount of rotation of the protruding pattern by calculating the time until the laser oscillated by the laser oscillator 820 is received by the light receiving unit, and based on this, the first driving connecting member 410 and the second driving connecting member 510 ) To calculate the rotational speed.

이렇게 산출된 회전속도는 상술한 것처럼 제어부(700)로 전달되며, 제어부(700)는 회전속도값에 따라 클러치부(600)나 메인구동모터(100) 또는 보조구동모터(200)의 구동량을 제어한다. The calculated rotation speed is transmitted to the control unit 700 as described above, and the control unit 700 determines the driving amount of the clutch unit 600, the main driving motor 100, or the auxiliary driving motor 200 according to the rotation speed value. Control.

제시된 실시예들에 대한 설명은 임의의 본 발명의 기술분야에서 통상의 지식을 가진 자가 본 발명을 이용하거나 또는 실시할 수 있도록 제공된다. 이러한 실시예들에 대한 다양한 변형들은 본 발명의 기술 분야에서 통상의 지식을 가진자에게 명백할 것이며, 여기에 정의된 일반적인 원리들은 본 발명의 범위를 벗어남이 없이 다른 실시예들에 적용될 수 있다. 그리하여, 본 발명은 여기에 제시된 실시예들로 한정되는 것이 아니라, 여기에 제시된 원리들 및 신규한 특징들과 일관되는 최광의의 범위에서 해석되어야 할 것이다.The description of the presented embodiments is provided to enable any person of ordinary skill in the art to use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art of the present invention, and the general principles defined herein can be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention should not be limited to the embodiments presented herein, but should be interpreted in the broadest scope consistent with the principles and novel features presented herein.

10: 전기 차량용 듀얼모터 구동 시스템
100: 메인구동모터 200: 보조구동모터
300: 메인샤프트 400: 메인동력전달부
410: 제1 구동연결부재 420: 제1 종동연결부재
430: 제1 동력전달부재 500: 보조동력전달부
510: 제2 구동연결부재 520: 제2 종동연결부재
530: 제2 동력전달부재 600: 클러치부
700: 제어부 800: 센서부
810: 센서본체 820: 레이저발진기
830: 회전반사체 840: 수광기
900: 전원공급부10: Dual motor drive system for electric vehicles
100: main drive motor 200: auxiliary drive motor
300: main shaft 400: main power transmission unit
410: first drive connecting member 420: first driven connecting member
430: first power transmission member 500: auxiliary power transmission unit
510: second drive connecting member 520: second driven connecting member
530: second power transmission member 600: clutch portion
700: control unit 800: sensor unit
810: sensor body 820: laser oscillator
830: rotating reflector 840: light receiver
900: power supply

Claims (10)

전기 차량에 구동력을 전달하기 위해 전기에 의해 구동하는 메인구동모터와;
상기 메인구동모터와 함께 상기 전기 차량의 구동력을 제공하는 보조구동모터와;
상기 전기차량이 주행하도록 바퀴에 구동력을 전달하는 메인샤프트와;
상기 메인구동모터의 구동력을 상기 메인샤프트로 전달하는 메인동력전달부와;
상기 보조구동모터의 구동력을 상기 메인샤프트로 전달하는 보조동력전달부와;
차량의 주행조건에 따라 또는 운전자의 선택신호에 따라 상기 보조구동모터의 구동을 제한하는 제어부와;
상기 보조구동모터의 구동여부에 따라 상기 메인샤프트와 보조동력전달부의 동력 연결을 허용하거나 차단하는 클러치부를 포함하는
전기 차량용 듀얼모터 구동 시스템.
A main driving motor driven by electricity to transmit driving force to the electric vehicle;
An auxiliary drive motor providing a driving force of the electric vehicle together with the main drive motor;
A main shaft that transmits a driving force to the wheel to drive the electric vehicle;
A main power transmission unit transmitting the driving power of the main driving motor to the main shaft;
An auxiliary power transmission unit transmitting the driving power of the auxiliary driving motor to the main shaft;
A control unit for limiting driving of the auxiliary driving motor according to a driving condition of a vehicle or a selection signal of a driver;
And a clutch unit that allows or blocks power connection between the main shaft and the auxiliary power transmission unit according to whether the auxiliary driving motor is driven.
Dual motor drive system for electric vehicles.
제 1항에 있어서,
상기 메인동력전달부는 상기 메인구동모터의 메인구동축과 연결되는 제1 구동연결부재와,
상기 메인샤프트에 설치되는 제1 종동연결부재와,
상기 제1 구동연결부재와 제1 종동연결부재를 연결하는 제1 동력전달부재를 포함하는 것을 특징으로 하는
전기 차량용 듀얼모터 구동 시스템.
According to claim 1,
The main power transmission unit includes a first driving connecting member connected to a main driving shaft of the main driving motor,
A first driven connecting member installed on the main shaft,
And a first power transmission member connecting the first driving connecting member and the first driven connecting member.
Dual motor drive system for electric vehicles.
제 1항에 있어서,
상기 보조동력전달부는 상기 보조구동모터의 보조구동축과 연결되는 제2 구동연결부재와,
상기 메인샤프트에 설치되는 제2 종동연결부재와,
상기 제2 구동연결부재와 제2 종동연결부재를 연결하는 제2 동력전달부재를 포함하는 것을 특징으로 하는
전기 차량용 듀얼모터 구동 시스템.
According to claim 1,
The auxiliary power transmission unit and a second drive connecting member connected to the auxiliary drive shaft of the auxiliary drive motor,
A second driven connecting member installed on the main shaft,
And a second power transmission member connecting the second drive connection member and the second driven connection member.
Dual motor drive system for electric vehicles.
제 2항에 있어서,
상기 제1 구동연결부재와 제1 종동연결부재는 스프로킷이고,
상기 제1 동력전달부재는 체인인 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
According to claim 2,
The first driving connecting member and the first driven connecting member are sprockets,
The first power transmission member is characterized in that the chain
Dual motor drive system for electric vehicles.
제 2항에 있어서,
상기 제1 구동연결부재와 제1 종동연결부재는 풀리이고,
상기 제1 동력전달부재는 벨트인 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.

According to claim 2,
The first driving connecting member and the first driven connecting member are pulleys,
The first power transmission member is characterized in that the belt
Dual motor drive system for electric vehicles.

제 3항에 있어서,
상기 제2 구동연결부재와 제2 종동연결부재는 스프로킷이고,
상기 제2 동력전달부재는 체인인 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
According to claim 3,
The second driving connecting member and the second driven connecting member are sprockets,
The second power transmission member is characterized in that the chain
Dual motor drive system for electric vehicles.
제 3항에 있어서,
상기 제2 구동연결부재와 제2 종동연결부재는 풀리이고,
상기 제2 동력전달부재는 벨트인 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
According to claim 3,
The second driving connecting member and the second driven connecting member are pulleys,
The second power transmission member is characterized in that the belt
Dual motor drive system for electric vehicles.
제 1항에 있어서,
상기 제어부는 상기 메인동력전달부와 보조동력전달부의 구동속도를 측정하는 센서부를 더 구비하고,
상기 제어부는 상기 센서부의 측정신호에 따라 상기 클러치부의 구동 및 상기 메인구동모터 또는 보조구동모터에 공급되는 전원을 제어하는 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
According to claim 1,
The control unit further includes a sensor unit for measuring the driving speed of the main power transmission unit and the auxiliary power transmission unit,
The control unit controls the driving of the clutch unit and the power supplied to the main driving motor or auxiliary driving motor according to the measurement signal of the sensor unit.
Dual motor drive system for electric vehicles.
제 8항에 있어서,
상기 메인동력전달부는 상기 메인구동모터의 메인구동축과 연결되는 제1 구동연결부재와, 상기 메인샤프트에 설치되는 제1 종동연결부재와, 상기 제1 구동연결부재와 제1 종동연결부재를 연결하는 제1 동력전달부재를 포함하고,
상기 보조동력전달부는 상기 보조구동모터의 보조구동축과 연결되는 제2 구동연결부재와, 상기 메인샤프트에 설치되는 제2 종동연결부재와, 상기 제2 구동연결부재와 제2 종동연결부재를 연결하는 제2 동력전달부재를 포함하며,
상기 센서부는 상기 제1 구동연결부재와 제2 구동연결부재의 회전속도를 감지하는 광센서인 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
The method of claim 8,
The main power transmission unit connects a first driving connecting member connected to the main driving shaft of the main driving motor, a first driven connecting member installed on the main shaft, and the first driving connecting member and the first driven connecting member. It includes a first power transmission member,
The auxiliary power transmission unit connects a second driving connecting member connected to the auxiliary driving shaft of the auxiliary driving motor, a second driven connecting member installed on the main shaft, and the second driving connecting member and the second driven connecting member. It includes a second power transmission member,
The sensor unit is characterized in that the optical sensor for sensing the rotational speed of the first drive connecting member and the second drive connecting member
Dual motor drive system for electric vehicles.
제 9항에 있어서,
상기 제1 구동연결부재와 제2 구동연결부재는 각각 스프로킷이고,
상기 센서부는 상기 제1 구동연결부재와 제2 구동연결부재의 사이에 마련되는 센서본체와,
상기 센서본체에 설치되는 레이저 발진기와,
상기 레이저 발진기에서 발진된 레이저를 상기 제1 구동연결부재 또는 제2 구동연결부재 측으로 반사할 수 있도록 반사면이 형성되어 있고, 회전하는 회전반사체와,
상기 회전반사체에 반사된 후 상기 제1 구동연결부재 또는 제2 구동연결부재를 향해 발진된 레이저가 상기 제1 구동연결부재 또는 제2 구동연결부재에 반사되면, 반사된 레이저를 수광하는 수광기와,
상기 레이저 발진기에서 발진된 후 되돌아 오는 반사 레이저의 수신 시간차를 통해 상기 제1 구동연결부재 및 제2 구동연결부재의 회전 속도를 계산하는 정보처리부를 포함하는 것을 특징으로 하는
전기 차량용 듀얼모터 구동시스템.
The method of claim 9,
Each of the first driving connecting member and the second driving connecting member is a sprocket,
The sensor unit and the sensor body provided between the first driving connecting member and the second driving connecting member,
The laser oscillator installed in the sensor body,
A reflecting surface is formed so as to reflect the laser oscillated by the laser oscillator toward the first driving connecting member or the second driving connecting member, and a rotating reflector,
When the laser oscillated toward the first driving connecting member or the second driving connecting member after being reflected by the rotating reflector is reflected by the first driving connecting member or the second driving connecting member, the light receiving unit receives the reflected laser ,
And an information processing unit that calculates rotational speeds of the first driving connecting member and the second driving connecting member through a difference in reception time of the reflected laser returned after being oscillated by the laser oscillator.
Dual motor drive system for electric vehicles.
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