KR102663982B1 - Power transmission system of hybrid electric vehicle - Google Patents

Power transmission system of hybrid electric vehicle Download PDF

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KR102663982B1
KR102663982B1 KR1020180120708A KR20180120708A KR102663982B1 KR 102663982 B1 KR102663982 B1 KR 102663982B1 KR 1020180120708 A KR1020180120708 A KR 1020180120708A KR 20180120708 A KR20180120708 A KR 20180120708A KR 102663982 B1 KR102663982 B1 KR 102663982B1
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South Korea
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gear
shaft
input shaft
output
motor
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KR1020180120708A
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Korean (ko)
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KR20200040590A (en
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정의철
김완수
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현대자동차 주식회사
기아 주식회사
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    • 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
    • B60K6/36—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 transmission gearings
    • B60K6/365—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 transmission gearings with the gears having orbital motion
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • 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
    • B60Y2200/92—Hybrid vehicles
    • 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
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)

Abstract

하이브리드 차량용 동력전달장치가 개시된다. 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 엔진과, 제1, 제2 모터/제너레이터를 동력원으로 하며, 상기 엔진의 회전동력이 입력되는 입력축; 상기 입력축과 동일 축선 상에 배치되어 상기 제1 모터/제너레이터와 동력 연결되는 제1 모터축; 상기 입력축과 일정간격을 두고 평행하게 배치되어 상기 제2 모터/제너레이터와 동력 연결되는 제2 모터축; 상기 제1 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제1 모터축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 다른 하나의 회전요소가 상기 입력축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 또 다른 하나의 회전요소가 출력요소로 작동하는 제1 유성기어세트; 상기 제2 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제2 모터축과 고정 연결되고, 다른 하나의 회전요소가 출력요소로 작동하고, 또 다른 하나의 회전요소가 상기 입력축의 회전동력을 전달받는 제2 유성기어세트; 상기 입력축과 일정 간격을 두고 평행하게 배치되어 상기 제1, 제2 유성기어세트로부터 전달되는 회전동력을 디프렌셜로 전달하는 출력축; 상기 입력축과 일정 간격을 두고 형행하게 배치되어 상기 입력축으로부터 전달되는 회전동력을 상기 제2 유성기어세트로 전달하는 아이들 축; 상기 제1, 제2 유성기어세트의 회전동력을 상기 출력축으로 전달하는 제1 기어열; 및 상기 입력축의 회전동력을 상기 제2 유성기어세트로 전달하는 제2 기어열을 포함한다.A power transmission device for a hybrid vehicle is disclosed. A power transmission device for a hybrid vehicle according to an embodiment of the present invention uses an engine, first and second motors/generators as power sources, and includes an input shaft through which rotational power of the engine is input. a first motor shaft disposed on the same axis as the input shaft and connected to the first motor/generator for power; a second motor shaft disposed in parallel with the input shaft at a certain distance and connected to the second motor/generator for power; Among the three rotating elements disposed on the first motor shaft, one rotating element is fixedly connected to the first motor shaft and selectively connected to the transmission housing, and the other rotating element is fixedly connected to the input shaft. At the same time, a first planetary gear set is selectively connected to the transmission housing, and another rotation element operates as an output element; Among the three rotation elements disposed on the second motor shaft, one rotation element is fixedly connected to the second motor shaft, another rotation element operates as an output element, and another rotation element is connected to the second motor shaft. A second planetary gear set that receives the rotational power of the input shaft; an output shaft disposed in parallel with the input shaft at a predetermined distance and transmitting rotational power transmitted from the first and second planetary gear sets to a differential; an idle shaft disposed at a predetermined distance from the input shaft and transmitting rotational power transmitted from the input shaft to the second planetary gear set; a first gear train transmitting rotational power of the first and second planetary gear sets to the output shaft; and a second gear train that transmits the rotational power of the input shaft to the second planetary gear set.

Description

하이브리드 차량용 동력전달장치{POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE} Power transmission system for hybrid vehicles {POWER TRANSMISSION SYSTEM OF HYBRID ELECTRIC VEHICLE}

본 발명은 하이브리드 차량용 동력전달장치에 관한 것으로서, 보다 상세하게는 각각 2개의 모터/제너레이터 및 2개의 유성기어세트와, 결합부재를 적용하여 3개의 운전모드(복합분기 모드, 패러럴 모드, 전기자동차 모드)가 가능하도록 한 하이브리드 차량용 동력전달장치에 관한 것이다.The present invention relates to a power transmission device for a hybrid vehicle, and more specifically, by applying two motors/generators, two planetary gear sets, and coupling members, respectively, three driving modes (complex branch mode, parallel mode, electric vehicle mode) ) is about a power transmission device for a hybrid vehicle that makes it possible.

자동차의 친환경 기술은 미래 자동차 산업의 생존이 달린 핵심기술로서, 선진 자동차 메이커들은 환경 및 연비 규제를 달성하기 위한 친환경 자동차 개발에 총력을 기울이고 있다.Eco-friendly automobile technology is a core technology on which the survival of the future automobile industry depends, and advanced automobile manufacturers are putting all their efforts into developing eco-friendly automobiles to meet environmental and fuel efficiency regulations.

이에 따라 각 자동차 메이커들은 전기 자동차(EV : Electric Vehicle), 하이브리드 전기 자동차(HEV : Hybrid Electric Vehicle), 연료전지 자동차(FCEV : Fuel Cell Electric Vehicle)등을 미래형 자동차 기술로서 개발하고 있다.Accordingly, each automobile manufacturer is developing electric vehicles (EV: Electric Vehicle), hybrid electric vehicles (HEV: Hybrid Electric Vehicle), and fuel cell electric vehicles (FCEV: Fuel Cell Electric Vehicle) as future automobile technologies.

상기와 같은 미래형 자동차는 중량 및 원가 등 여러 가지 기술적인 제약이 있기 때문에 자동차 메이커에서는 배기가스 규제를 만족시키고, 연비 성능의 향상을 위한 현실적인 문제의 대안으로서 하이브리드 자동차에 주목하고 있으며, 이를 실용화하기 위해 치열한 경쟁을 벌이고 있다. Since the above-mentioned future cars have various technical limitations such as weight and cost, car manufacturers are paying attention to hybrid cars as an alternative to practical problems to satisfy exhaust gas regulations and improve fuel efficiency, and to put them into practice. There is fierce competition.

하이브리드 자동차는 2개 이상의 동력원(Power Source)을 사용하는 자동차로서, 여러 가지 방식으로 조합될 수 있으며, 동력원으로는 기존의 화석 연료를 사용하는 가솔린 엔진 또는 디젤 엔진과 전기 에너지에 의하여 구동되는 모터/제너레이터가 혼합되어 사용된다.A hybrid vehicle is a vehicle that uses two or more power sources and can be combined in various ways. The power sources include a gasoline engine or diesel engine using existing fossil fuels and a motor/motor driven by electrical energy. Generators are used in combination.

이러한 하이브리드 자동차는 엔진과 모터/제너레이터의 조합에 따라 모터/제너레이터만으로 구동되는 EV모드, 엔진과 모터/제너레이터의 동시 구동에 의한 HEV모드와, 엔진만으로 구동되는 엔진모드의 구현이 가능하며, 차량 정지시 엔진을 정지시키는 아이들 정지(Idle Stop & Go), 차량의 제동시 기전의 마찰에 의한 제동 대신에 차량의 운동에너지를 이용하여 모터/제너레이터를 구동하고, 이때 발생되는 전기 에너지를 배터리에 저장하였다가 차량의 구동 시, 재사용하는 회생제동(Regenertive Braking)등의 기술 적용으로 연료 사용을 저감하여 대폭적인 연비 개선 효과를 얻을 수 있다. Depending on the combination of the engine and motor/generator, these hybrid vehicles can implement EV mode driven only by the motor/generator, HEV mode driven by the simultaneous operation of the engine and motor/generator, and engine mode driven only by the engine, and the vehicle can be stopped. Idle Stop & Go, which stops the engine when braking, uses the vehicle's kinetic energy to drive the motor/generator instead of braking due to mechanical friction, and the electrical energy generated at this time is stored in the battery. When driving a vehicle, fuel use can be reduced by applying technologies such as regenerative braking, thereby significantly improving fuel efficiency.

이 배경기술 부분에 기재된 사항은 발명의 배경에 대한 이해를 증진하기 위하여 작성된 것으로서, 이 기술이 속하는 분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술이 아닌 사항을 포함할 수 있다.The matters described in this background art section have been prepared to enhance understanding of the background of the invention, and may include matters that are not prior art already known to those skilled in the art in the field to which this technology belongs.

본 발명의 실시 예는 각각 2개의 모터/제너레이터 및 2개의 유성기어세트와, 결합부재를 적용하여 3개의 운전모드가 가능하도록 한 하이브리드 차량용 동력전달장치를 제공하고자 한다.An embodiment of the present invention seeks to provide a power transmission device for a hybrid vehicle that enables three driving modes by applying two motors/generators, two planetary gear sets, and coupling members, respectively.

또한, 본 발명의 실시 예는 간단한 구성에 의하여 전장 축소 및 중량을 저감하고, 동력전달효율을 개선할 수 있는 하이브리드 차량용 동력전달장치를 제공하고자 한다.In addition, an embodiment of the present invention seeks to provide a power transmission device for a hybrid vehicle that can reduce overall length and weight and improve power transmission efficiency through a simple configuration.

본 발명의 하나 또는 다수의 실시 예에서는 엔진과, 제1, 제2 모터/제너레이터를 동력원으로 하며, 상기 엔진의 회전동력이 입력되는 입력축; 상기 입력축과 동일 축선 상에 배치되어 상기 제1 모터/제너레이터와 동력 연결되는 제1 모터축; 상기 입력축과 일정간격을 두고 평행하게 배치되어 상기 제2 모터/제너레이터와 동력 연결되는 제2 모터축; 상기 제1 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제1 모터축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 다른 하나의 회전요소가 상기 입력축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 또 다른 하나의 회전요소가 출력요소로 작동하는 제1 유성기어세트; 상기 제2 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제2 모터축과 고정 연결되고, 다른 하나의 회전요소가 출력요소로 작동하고, 또 다른 하나의 회전요소가 상기 입력축의 회전동력을 전달받는 제2 유성기어세트; 상기 입력축과 일정 간격을 두고 평행하게 배치되어 상기 제1, 제2 유성기어세트로부터 전달되는 회전동력을 디프렌셜로 전달하는 출력축; 상기 입력축과 일정 간격을 두고 형행하게 배치되어 상기 입력축으로부터 전달되는 회전동력을 상기 제2 유성기어세트로 전달하는 아이들 축; 상기 제1, 제2 유성기어세트의 회전동력을 상기 출력축으로 전달하는 제1 기어열; 및 상기 입력축의 회전동력을 상기 제2 유성기어세트로 전달하는 제2 기어열을 포함하는 하이브리드 차량용 동력전달장치가 제공될 수 있다.In one or more embodiments of the present invention, an engine and first and second motors/generators are used as power sources, and an input shaft through which the rotational power of the engine is input; a first motor shaft disposed on the same axis as the input shaft and connected to the first motor/generator for power; a second motor shaft disposed in parallel with the input shaft at a certain distance and connected to the second motor/generator for power; Among the three rotating elements disposed on the first motor shaft, one rotating element is fixedly connected to the first motor shaft and selectively connected to the transmission housing, and the other rotating element is fixedly connected to the input shaft. At the same time, a first planetary gear set is selectively connected to the transmission housing, and another rotation element operates as an output element; Among the three rotation elements disposed on the second motor shaft, one rotation element is fixedly connected to the second motor shaft, another rotation element operates as an output element, and another rotation element is connected to the second motor shaft. A second planetary gear set that receives the rotational power of the input shaft; an output shaft disposed in parallel with the input shaft at a predetermined distance and transmitting rotational power transmitted from the first and second planetary gear sets to a differential; an idle shaft disposed at a predetermined distance from the input shaft and transmitting rotational power transmitted from the input shaft to the second planetary gear set; a first gear train transmitting rotational power of the first and second planetary gear sets to the output shaft; And a power transmission device for a hybrid vehicle including a second gear train that transmits the rotational power of the input shaft to the second planetary gear set.

상기 제1 유성기어세트는 싱글 피니언 유성기어세트로 이루어지며, 제1 선기어가 제1 모터축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 제1 유성캐리어가 입력축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 제1 링기어가 출력요소로 작동될 수 있다.The first planetary gear set consists of a single pinion planetary gear set, and the first sun gear is fixedly connected to the first motor shaft and selectively connected to the transmission housing, and the first planetary carrier is fixedly connected to the input shaft, It is selectively connected to the transmission housing, and the first ring gear can be operated as an output element.

상기 제1 선기어는 상기 제1 모터축과 변속기 하우징 사이에 구성되는 제1 브레이크에 의해 선택적인 고정요소로 작동하고, 상기 제1 유성캐리어는 상기 입력축과 변속기 하우징 사이에 구성되는 제2 브레이크에 의해 선택적인 고정요소로 작동할 수 있다. The first sun gear operates as an optional fixing element by a first brake configured between the first motor shaft and the transmission housing, and the first planet carrier operates by a second brake configured between the input shaft and the transmission housing. Can act as an optional fixture.

상기 제2 유성기어세트는 싱글 피니언 유성기어세트로 이루어지며, 제2 선기어가 상기 제2 모터축과 고정 연결되고, 제2 유성캐리어가 출력요소로 작동되고, 제2 링기어가 상기 입력축의 회전동력을 전달받을 수 있다.The second planetary gear set consists of a single pinion planetary gear set, a second sun gear is fixedly connected to the second motor shaft, a second planetary carrier operates as an output element, and a second ring gear rotates the input shaft. Power can be transmitted.

상기 제1 기어열은 상기 제1 유성기어세트를 포함하며, 상기 제1 링기어에 고정 연결되는 제1 출력구동기어와, 상기 출력축에 고정 연결되어 상기 제1 출력구동기어와 외접 기어 연결되는 출력피동기어와, 상기 제2 유성캐리어에 고정 연결되어 상기 출력피동기어와 외접 기어 연결되는 제2 출력구동기어를 포함할 수 있다.The first gear train includes the first planetary gear set, a first output drive gear fixedly connected to the first ring gear, and an output fixedly connected to the output shaft and connected to the first output drive gear and an external gear. It may include a driven gear and a second output drive gear fixedly connected to the second planetary carrier and connected to the output driven gear and an external gear.

상기 제2 기어열은 상기 제2 유성기어세트를 포함하며, 상기 입력축에 고정 연결되는 제1 구동기어와, 상기 아이들 축 상에 구성되어 상기 제1 구동기어와 외접 기어 연결되는 아이들 기어와, 상기 제2 링기어에 고정 연결되어 상기 아이들 기어와 외접 기어 연결되는 제1 피동기어를 포함할 수 있다.The second gear train includes the second planetary gear set, a first drive gear fixedly connected to the input shaft, an idle gear configured on the idle shaft and connected to the first drive gear and an external gear, and It may include a first driven gear fixedly connected to the second ring gear and connected to the idle gear and external gear.

상기 제1 출력구동기어와 상기 제1 피동기어는 기어 잇수가 동일하고, 상기 출력피동기어와 상기 아이들 기어는 기어 잇수가 동일하고, 상기 제2 출력구동기어와 상기 제1 구동기어는 기어 잇수가 동일하게 설정될 수 있다.The first output driving gear and the first driven gear have the same number of gear teeth, the output driven gear and the idle gear have the same number of gear teeth, and the second output driving gear and the first driving gear have the same number of gear teeth. It can be set the same.

본 발명의 실시 예에 따른 의한 하이브리드 차량용 동력전달장치는 엔진과 제1 모터/제너레이터의 회전동력이 입력되는 제1 유성기어세트와, 엔진과 제2 모터/제너레이터의 회전동력이 입력되는 제2 유성기어세트와, 2개의 결합부재의 조합으로 동력전달장치를 구성하고 있기 때문에 그 구성을 매우 간단히 할 수 있다.The power transmission device for a hybrid vehicle according to an embodiment of the present invention includes a first planetary gear set into which the rotational power of the engine and the first motor/generator is input, and a second planetary gear set into which the rotational power of the engine and the second motor/generator is input. Since the power transmission device is composed of a combination of a gear set and two coupling members, the configuration can be very simple.

또한, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 구성이 매우 간단함으로써, 부피를 줄이고, 경량화를 통해 탑재성과 연비를 향상시킬 수 있다.In addition, the power transmission device for a hybrid vehicle according to an embodiment of the present invention has a very simple configuration, so it can improve mountability and fuel efficiency through reduced volume and weight reduction.

또한, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 동력전달이 모두 기계적으로 이루어짐으로써, 동력전달성능을 향상시켜 연비를 향상시킬 수 있다.In addition, in the power transmission device for a hybrid vehicle according to an embodiment of the present invention, all power transmission is mechanically performed, thereby improving power transmission performance and improving fuel efficiency.

그 외에, 본 발명의 실시 예로 인해 얻을 수 있거나 예측되는 효과에 대해서는 본 발명의 실시 예에 대한 상세한 설명에서 직접적 또는 암시적으로 개시하도록 한다. 즉 본 발명의 실시 예에 따라 예측되는 다양한 효과에 대해서는 후술될 상세한 설명 내에서 개시될 것이다.In addition, the effects that can be obtained or expected due to the embodiments of the present invention will be disclosed directly or implicitly in the detailed description of the embodiments of the present invention. That is, various effects expected according to embodiments of the present invention will be disclosed in the detailed description to be described later.

도 1은 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치의 구성도이다.
도 2는 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치의 작동 모드표이다.1 is a configuration diagram of a power transmission device for a hybrid vehicle according to an embodiment of the present invention.
Figure 2 is a table of operating modes of a power transmission device for a hybrid vehicle according to an embodiment of the present invention.

이하, 첨부한 도면을 참고로 하여 본 발명의 실시 예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시 예에 한정되지 않는다.Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 도면부호를 적용하여 설명한다.In order to clearly explain the present invention, parts that are not relevant to the description have been omitted, and the same reference numerals are used to describe identical or similar components throughout the specification.

또한, 하기의 설명에서 구성의 명칭을 제1, 제2 등으로 구분한 것은 그 구성의 명칭이 동일하여 이를 구분하기 위한 것으로, 반드시 그 순서에 한정되는 것은 아니다.In addition, in the description below, the names of the components are divided into first, second, etc. to distinguish them because the names of the components are the same, and the order is not necessarily limited.

도 1은 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치에 대한 구성도이다.1 is a configuration diagram of a power transmission device for a hybrid vehicle according to an embodiment of the present invention.

도 1을 참조하면, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 엔진(ENG)과 제1, 제2 모터/제너레이터(MG1)(MG2)를 동력원으로 하며, 상기 제1, 제2 모터/제너레이터(MG1)(MG2)와 각각 직접 연결되어 상호 2개의 기어열로 연결되는 제1, 제2 유성기어세트(PG1)(PG2)와, 결합요소인 2개의 브레이크(BK1)(BK2)와, 상기 엔진(ENG)의 회전동력이 입력되는 입력축(IS), 제1, 제2 모터축(MS1)(MS2), 아이들 축(IDS)과, 상기 제1, 제2 유성기어세트(PG1)(PG2)로부터 전달되는 회전동력을 디프렌셜(DIFF)로 전달하는 출력축(OS) 등을 포함하여 이루어진다.Referring to FIG. 1, the power transmission device for a hybrid vehicle according to an embodiment of the present invention uses an engine (ENG) and first and second motors/generators (MG1) (MG2) as power sources, and the first and second motors /First and second planetary gear sets (PG1) (PG2), which are directly connected to the generator (MG1) (MG2) and connected to each other as two gear trains, and two brakes (BK1) (BK2) as coupling elements, , an input shaft (IS) through which the rotational power of the engine (ENG) is input, first and second motor shafts (MS1) (MS2), an idle shaft (IDS), and the first and second planetary gear sets (PG1) It includes an output shaft (OS) that transmits the rotational power transmitted from (PG2) to the differential (DIFF).

상기 엔진(ENG)은 주 동력원으로서, 기존의 화석 연료를 사용하는 가솔린 엔진 또는 디젤 엔진 등의 공지된 각종 엔진이 이용될 수 있다.The engine (ENG) is a main power source, and various known engines such as gasoline engines or diesel engines that use existing fossil fuels can be used.

상기 제1, 제2 모터/제너레이터(MG1)(MG2)는 공지와 같이 모터와 제너레이터 기능을 수행하며, 각각 변속기 하우징에 고정되는 제1, 제2 스테이터(ST1)(ST2)와, 상기 제1, 제2 스테이터(ST1)(ST2)의 반경방향 내측에서 회전 가능하게 지지되는 제1, 제2 로터(RT1)(RT2)를 포함하여 이루어진다.The first and second motor/generators (MG1) (MG2) perform motor and generator functions as known, and the first and second stators (ST1) (ST2) are respectively fixed to the transmission housing, and the first and second stators (ST1) (ST2) are respectively fixed to the transmission housing. , and includes first and second rotors RT1 and RT2 rotatably supported on the radial inner side of the second stators ST1 and ST2.

상기 제1 유성기어세트(PG1)는 싱글 피니언 유성기어세트로서, 외륜 기어인 제1 선기어(S1)와, 상기 제1 선기어(S1)와 외접으로 치합되는 외륜 기어인 복수의 제1 피니언 기어(P1)를 자전 및 공전이 가능하게 회전 지지하는 제1 유성캐리어(PC1)와, 상기 제1 선기어(S1)와 동심원 상에 배치되는 내륜 기어로서, 상기 복수의 제1 피니언 기어(P1)와 내접으로 치합되어 상기 제1 선기어(S1)와 동력 연결되는 제1 링기어(R1)를 포함한다.The first planetary gear set (PG1) is a single pinion planetary gear set, including a first sun gear (S1), which is an outer gear, and a plurality of first pinion gears ( A first planet carrier (PC1) that rotates and supports P1) so that it can rotate and rotate, and an inner ring gear disposed on a concentric circle with the first sun gear (S1), and inscribed with the plurality of first pinion gears (P1) It includes a first ring gear (R1) that is engaged and power-connected to the first sun gear (S1).

상기 제2 유성기어세트(PG2)는 싱글 피니언 유성기어세트로서, 외륜 기어인 제2 선기어(S2)와, 상기 제2 선기어(S2)와 외접으로 치합되는 외륜 기어인 복수의 제2 피니언 기어(P2)를 자전 및 공전이 가능하게 회전 지지하는 제2 유성캐리어(PC2)와, 상기 제2 선기어(S2)와 동심원 상에 배치되는 내륜 기어로서, 상기 복수의 제2 피니언 기어(P2)와 내접으로 치합되어 상기 제2 선기어(S2)와 동력 연결되는 제2 링기어(R2)를 포함한다.The second planetary gear set (PG2) is a single pinion planetary gear set, including a second sun gear (S2), which is an outer gear, and a plurality of second pinion gears ( A second planet carrier (PC2) that rotates and supports P2) so that it can rotate and rotate, and an inner ring gear disposed concentrically with the second sun gear (S2), and inscribed with the plurality of second pinion gears (P2) It includes a second ring gear (R2) that is engaged and power-connected to the second sun gear (S2).

상기 엔진(ENG)은 입력축(IS)과 직접 연결되어 회전동력을 전달하고, 상기 제1, 제2 모터/제너레이터(MG1)(MG2)는 각각 제1, 제2 모터축(MS1)(MS2)과 직접 연결되어 회전동력을 전달한다.The engine (ENG) is directly connected to the input shaft (IS) to transmit rotational power, and the first and second motors/generators (MG1) (MG2) are respectively connected to the first and second motor shafts (MS1) (MS2). It is directly connected to and transmits rotational power.

상기 제1 모터/제너레이터(MG1)의 제1 모터축(MS1)은 상기 입력축(IS)과 동일 축선 상에 배치되며, 상기 제2 모터/제너레이터(MG2)의 제2 모터축(MS2)은 상기 입력축(IS)과 일정 간격을 두고 평행하게 배치되며, 상기 아이들 축(IDS)과 출력축(OS)은 상기 입력축(IS)과 일정 간격을 두고 평행하게 배치된다.The first motor shaft (MS1) of the first motor/generator (MG1) is disposed on the same axis as the input shaft (IS), and the second motor shaft (MS2) of the second motor/generator (MG2) is It is arranged in parallel with the input shaft (IS) at a certain distance, and the idle axis (IDS) and the output shaft (OS) are arranged in parallel with the input shaft (IS) at a certain distance.

상기 제1 모터축(MS1)상에는 제1 유성기어세트(PG1)가 배치되며, 상기 제1 유성기어세트(PG1)의 제1 선기어(S1)는 제1 모터축(MS1)과 직접 연결되고, 제1 유성캐리어(PC1)는 입력축(IS)과 직접 연결된다.A first planetary gear set (PG1) is disposed on the first motor shaft (MS1), and a first sun gear (S1) of the first planetary gear set (PG1) is directly connected to the first motor shaft (MS1), The first planetary carrier (PC1) is directly connected to the input shaft (IS).

상기 제2 모터축(MS2)상에서는 제2 유성기어세트(PG2)가 배치되며, 상기 제2 유성기어세트(PG2)의 제2 선기어(S2)는 제2 모터축(MS2)과 직접 연결된다.A second planetary gear set (PG2) is disposed on the second motor shaft (MS2), and a second sun gear (S2) of the second planetary gear set (PG2) is directly connected to the second motor shaft (MS2).

상기 제1, 제2 유성기어세트(PG1)(PG2)는 제1, 제2 기어열(GL1)(GL2)에 의하여 상호 외접 기어 연결된다.The first and second planetary gear sets PG1 and PG2 are externally connected to each other by first and second gear trains GL1 and GL2.

상기 제1 기어열(GL1)은 상기 제1 유성기어세트(PG1)와 함께, 상기 제1 유성기어세트(PG1)의 제1 링기어(R1)에 직접 연결되는 제1 출력구동기어(IOPG1)와, 상기 출력축(OS)에 직접 연결되어 상기 제1 출력구동기어(IOPG1)와 외접 기어 연결되는 출력피동기어(FOSG)와, 상기 제2 유성기어세트(PG2)의 제2 유성캐리어(PC2)에 직접 연결되어 상기 출력피동기어(FOSG)와 외접 기어 연결되는 제2 출력구동기어(IOPG2)를 포함하여 이루어진다.The first gear train (GL1) includes the first planetary gear set (PG1) and a first output drive gear (IOPG1) directly connected to the first ring gear (R1) of the first planetary gear set (PG1). , an output driven gear (FOSG) directly connected to the output shaft (OS) and externally connected to the first output driving gear (IOPG1), and a second planetary carrier (PC2) of the second planetary gear set (PG2). It is directly connected to and includes a second output drive gear (IOPG2) connected to the output driven gear (FOSG) and an external gear.

상기 제2 기어열(GL2)은 상기 제1 유성기어세트(PG1)의 제1 유성캐리어(PC1)와 연결된 입력축(IS) 상에 직접 연결된 제1 구동기어(IPG1)와, 상기 제1 구동기어(IPG1)와 외접 기어 연결되는 아이들 축(IDS) 상의 아이들 기어(IDG)와, 상기 제2 유성기어세트(PG2)와, 상기 제2 유성기어세트(PG2)의 제2 링기어(R2)에 직접 연결되어 상기 아이들 기어(IDG)와 외접 기어 연결되는 제1 피동기어(ISG1)를 포함하여 이루어진다.The second gear train (GL2) includes a first driving gear (IPG1) directly connected to the input shaft (IS) connected to the first planetary carrier (PC1) of the first planetary gear set (PG1), and the first driving gear (IPG1) and an external gear connected to the idle gear (IDG) on the idle shaft (IDS), the second planetary gear set (PG2), and the second ring gear (R2) of the second planetary gear set (PG2). It includes a first driven gear (ISG1) that is directly connected and connected to the idle gear (IDG) and an external gear.

상기에서 제1 출력구동기어(IOPG1)와 제1 피동기어(ISG1)의 기어 잇수가 동일하고, 출력피동기어(FOSG)와 아이들 기어(IDG)의 기어 잇수가 동일하고, 제2 출력구동기어(IOPG2)와 제1 구동기어(IPG1)의 기어 잇수가 동일하게 형성된다.In the above, the number of gear teeth of the first output drive gear (IOPG1) and the first driven gear (ISG1) are the same, the number of gear teeth of the output driven gear (FOSG) and the idle gear (IDG) are the same, and the second output drive gear ( IOPG2) and the number of gear teeth of the first driving gear (IPG1) are formed to be the same.

이에 따라, 상기 제1, 제2 유성기어세트(PG1)(PG2)는 제1 링기어(R1)와 제2 유성캐리어(PC2)가 직접 연결된 것과 같이 회전동력을 상호 전달하고, 제1 유성캐리어(PC1)와 제2 링기어(R2)가 직접 연결된 것과 같이 회전동력을 상호 전달하며, 최종적으로는 4개의 회전축을 갖는 복합유성기어세트와 동일한 작동이 이루어질 수 있다.Accordingly, the first and second planetary gear sets (PG1) (PG2) transmit rotational power to each other as if the first ring gear (R1) and the second planetary carrier (PC2) are directly connected, and the first planetary gearset (R1) and the second planetary carrier (PC2) transmit rotational power to each other, (PC1) and the second ring gear (R2) transmit rotational power to each other as if they were directly connected, and ultimately the same operation as a composite planetary gear set with four rotation axes can be achieved.

또한, 상기에서 제1 모터축(MS1)은 제1 선기어(S1)와 고정 연결된 상태로, 제1 브레이크(BK1)에 의하여 변속기 하우징(H)과 선택적으로 연결되고, 상기 입력축(IS)은 제1 유성캐리어(PC1)와 고정 연결된 상태로, 제2 브레이크(BK2)에 의하여 변속기 하우징(H)과 선택적으로 연결되면서 상기 제1 선기어(S1)와 제1 유성캐리어(PC1)가 선택적인 고정요소로 작동될 수 있도록 한다. In addition, in the above, the first motor shaft (MS1) is fixedly connected to the first sun gear (S1) and is selectively connected to the transmission housing (H) by the first brake (BK1), and the input shaft (IS) is connected to the first sun gear (S1). 1 Fixedly connected to the planetary carrier (PC1) and selectively connected to the transmission housing (H) by the second brake (BK2), the first sun gear (S1) and the first planetary carrier (PC1) are optional fixing elements. so that it can be operated.

도 2는 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치의 작동 모드표이다.Figure 2 is a table of operating modes of a power transmission device for a hybrid vehicle according to an embodiment of the present invention.

도 2를 참조하면, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 복합분기 모드(Compound Mode), 패러럴 모드(Parallel Mode), 전기 자동차 모드(EV Mode; Two Motor Mode)에 의한 전,후진 모드를 구현할 수 있다Referring to FIG. 2, the power transmission device for a hybrid vehicle according to an embodiment of the present invention operates forward and backward by compound mode, parallel mode, and electric vehicle mode (EV Mode; Two Motor Mode). The mode can be implemented

[복합분기 모드(Compound Mode)][Compound Mode]

복합분기 모드(Compound Mode)에서는 엔진(ENG)의 회전동력과 제1 모터/제너레이터(MG1)의 회전동력에 의하여 구현되는데, 이때에는 엔진(ENG)의 회전동력이 입력축(IS)을 통해 제1 유성캐리어(PC1)로 입력되고, 제1 모터/제너레이터(MG1)의 회전동력이 제1 모터축(MS1)을 통해 제1 선기어(S1)로 입력된다.In compound mode, it is implemented by the rotational power of the engine (ENG) and the rotational power of the first motor/generator (MG1). In this case, the rotational power of the engine (ENG) is transmitted through the input shaft (IS) to the first motor/generator (MG1). It is input to the planetary carrier (PC1), and the rotational power of the first motor/generator (MG1) is input to the first sun gear (S1) through the first motor shaft (MS1).

그러면, 상기 제1 유성캐리어(PC1)와 제1 선기어(S1)의 회전수에 따른 제1 유성기어세트(PG1)의 상호 보완 작동에 의하여 제1 링기어(R1)의 속도 변환이 이루어지면서 출력되며, 상기 제1 링기어(R1)를 통해 출력되는 회전동력은 출력피동기어(FOSG)과, 출력축(CS), 최종 출력기어(FOG), 종감속기어(FDG)를 통해 디프렌셜(DIFF)로 전달되면서 차량의 복합분기 모드 운행을 구현할 수 있다.Then, the speed of the first ring gear (R1) is converted by the complementary operation of the first planetary carrier (PC1) and the first planetary gear set (PG1) according to the rotation speed of the first sun gear (S1), and the output The rotational power output through the first ring gear (R1) is differential (DIFF) through the output driven gear (FOSG), output shaft (CS), final output gear (FOG), and final reduction gear (FDG). ), it is possible to implement complex branch mode operation of the vehicle.

이때, 상기 제2 유성기어세트(PG2)에는 상기 출력되는 회전동력이 제2 유성캐리어(PC2)로 입력되고, 엔진(ENG)의 출력이 제2 링기어(R2)로 입력됨으로써, 제2 유성캐리어(PC2)와 제2 링기어(R2)의 회전수에 따라 제2 선기어(S2)가 정회전 또는 역회전 하면서 발전기로서 작동될 수 있다.At this time, the rotational power output from the second planetary gear set (PG2) is input to the second planetary carrier (PC2), and the output of the engine (ENG) is input to the second ring gear (R2), thereby generating the second planetary gear (PG2). Depending on the rotation speed of the carrier (PC2) and the second ring gear (R2), the second sun gear (S2) may rotate forward or reverse and operate as a generator.

[패러럴 모드(Parallel Mode)][Parallel Mode]

패러럴 모드(Parallel Mode)에서는 제1 브레이크(BK1)가 작동 제어되고 있는 상태에서, 엔진(ENG)의 회전동력과 제2 모터/제너레이터(MG2)의 회전동력에 의하여 구현되는데, 이때에는 엔진(ENG)의 회전동력이 입력축(IS)을 통해 제1 유성캐리어(PC1)로 입력되고, 제2 모터/제너레이터(MG2)의 회전동력이 제2 모터축(MS2)을 통해 제2 선기어(S2)로 입력된다.In parallel mode, the first brake (BK1) is controlled and implemented by the rotational power of the engine (ENG) and the rotational power of the second motor/generator (MG2). In this case, the engine (ENG) )'s rotational power is input to the first planetary carrier (PC1) through the input shaft (IS), and the rotational power of the second motor/generator (MG2) is input to the second sun gear (S2) through the second motor shaft (MS2). is entered.

그러면, 제1 유성기어세트(PG1)에서는 제1 브레이크(BK1)의 작동에 의하여 제1 선기어(S1)가 고정된 상태에서, 제1 유성캐리어(PC1)로 엔진(ENG)의 회전동력이 입력되므로 증속되어 제1 링기어(R1)를 통해 출력된다.Then, in the first planetary gear set (PG1), the rotational power of the engine (ENG) is input to the first planetary carrier (PC1) while the first sun gear (S1) is fixed by the operation of the first brake (BK1). Therefore, the speed is increased and output through the first ring gear (R1).

그리고 제2 유성기어세트(PG2)에서는 엔진(ENG)의 회전동력이 입력축(IS), 제1 구동기어(IPG1), 아이들 기어(IDG)를 거쳐 제1 피동기어(ISG1)와 고정 연결된 제2 링기어(R2)로 입력되고 있는 상태에서, 제2 모터/제너레이터(MG2)가 작동 제어된다.And in the second planetary gear set (PG2), the rotational power of the engine (ENG) is fixedly connected to the first driven gear (ISG1) through the input shaft (IS), the first driving gear (IPG1), and the idle gear (IDG). With input to the ring gear R2, the second motor/generator MG2 is controlled to operate.

따라서 제1 링기어(R1)와 고정 연결된 제1 출력구동기어(IOPG1)를 통해 출력되는 회전동력이 출력피동기어(FOSG), 출력축(CS), 최종 출력기어(FOG), 종감속기어(FDG)를 통해 디프렌셜(DIFF)로 전달될 때, 제2 모터/제너레이터(MG2)가 작동 제어되면서 출력피동기어(FOSG)의 구동력을 어시스트하면서 차량의 패러럴 모드 운행을 구현할 수 있다.Therefore, the rotational power output through the first output driving gear (IOPG1) fixedly connected to the first ring gear (R1) is output driven gear (FOSG), output shaft (CS), final output gear (FOG), and final reduction gear (FDG). When transmitted to the differential (DIFF) through ), the second motor/generator (MG2) is operated and controlled to assist the driving force of the output driven gear (FOSG), thereby implementing parallel mode operation of the vehicle.

[전기 자동차(EV) 전진 모드][Electric vehicle (EV) forward mode]

전기 자동차(EV) 전진 모드에서는 엔진(ENG)이 정지된 상태에서, 제2 브레이크(BK2)가 작동 제어되고, 제1, 제2 모터/제너레이터(MG1)(MG2)가 구동된다.In the electric vehicle (EV) forward mode, while the engine (ENG) is stopped, the second brake (BK2) is controlled to operate, and the first and second motors/generators (MG1) and (MG2) are driven.

그러면, 제2 브레이크(BK2)의 작동에 의하여 제1 유성기어세트(PG1)에서는 제1 유성캐리어(PC1)가 고정요소로 작동되고, 제2 유성기어세트(PG2)에서는 제2 링기어(R2)가 고정요소로 작동하게 된다. Then, by the operation of the second brake (BK2), the first planetary carrier (PC1) is operated as a fixed element in the first planetary gear set (PG1), and the second ring gear (R2) is operated as a fixed element in the second planetary gear set (PG2). ) acts as a fixed element.

또한, 제1 모터/제너레이터(PG1)는 역회전 제어하고, 제2 모터/제너레이터(MG2)는 정회전 제어한다.Additionally, the first motor/generator (PG1) controls reverse rotation, and the second motor/generator (MG2) controls forward rotation.

이에 따라, EV 전진 모드에서는 제1, 제2 모터/제너레이터(MG1)(MG2)의 회전동력이 출력피동기어(FOSG)에서 합성되어 출력축(CS), 최종 출력기어(FOG), 종감속기어(FDG)를 통해 디프렌셜(DIFF)로 전달되면서 EV 전진 모드의 차량 운행을 구현할 수 있다.Accordingly, in the EV forward mode, the rotational power of the first and second motors/generators (MG1) (MG2) is synthesized in the output driven gear (FOSG) to drive the output shaft (CS), the final output gear (FOG), and the final reduction gear ( It is transmitted to the differential (DIFF) through FDG, enabling vehicle operation in EV forward mode.

[전기 자동차(EV) 후진 모드][Electric vehicle (EV) reverse mode]

전기 자동차(EV) 후진 모드에서는 엔진(ENG)이 정지된 상태에서, 제2 브레이크(BK2)가 작동 제어되고, 제1, 제2 모터/제너레이터(MG1)(MG2)가 구동된다.In the electric vehicle (EV) reverse mode, while the engine (ENG) is stopped, the second brake (BK2) is controlled to operate, and the first and second motors/generators (MG1) and (MG2) are driven.

그러면, 제2 브레이크(BK2)의 작동에 의하여 제1 유성기어세트(PG1)에서는 제1 유성캐리어(PC1)가 고정요소로 작동되고, 제2 유성기어세트(PG2)에서는 제2 링기어(R2)가 고정요소로 작동하게 된다.Then, by the operation of the second brake (BK2), the first planetary carrier (PC1) is operated as a fixed element in the first planetary gear set (PG1), and the second ring gear (R2) is operated as a fixed element in the second planetary gear set (PG2). ) acts as a fixed element.

또한, 상기 전진 모드와 반대로 제1 모터/제너레이터(PG1)는 정회전 제어하고, 제2 모터/제너레이터(MG2)는 역회전 제어한다.Additionally, contrary to the forward mode, the first motor/generator (PG1) controls forward rotation, and the second motor/generator (MG2) controls reverse rotation.

이에 따라, EV 후진 모드에서는 제1, 제2 모터/제너레이터(MG1)(MG2)의 회전동력이 출력피동기어(FOSG)에서 합성되어 출력축(CS), 최종 출력기어(FOG), 종감속기어(FDG)를 통해 디프렌셜(DIFF)로 전달되면서 EV 후진 모드의 차량 운행을 구현할 수 있다.Accordingly, in EV reverse mode, the rotational power of the first and second motors/generators (MG1) (MG2) is synthesized in the output driven gear (FOSG), and the output shaft (CS), the final output gear (FOG), and the final reduction gear ( It is transmitted to the differential (DIFF) through FDG, enabling vehicle operation in EV reverse mode.

이상에서와 같이, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 엔진(ENG)과 제1 모터/제너레이터(MG1)의 회전동력이 입력되는 제1 유성기어세트(PG1)와, 엔진(EMG)과 제2 모터/제너레이터(MG2)의 회전동력이 입력되는 제2 유성기어세트(PG2)와, 2개의 결합부재(BK1)(BK2)의 조합으로 동력전달장치를 구성하고 있기 때문에 전체 구성을 간단히 할 수 있다.As described above, the power transmission device for a hybrid vehicle according to an embodiment of the present invention includes a first planetary gear set (PG1) into which the rotational power of the engine (ENG) and the first motor/generator (MG1) is input, and the engine (EMG) ) and the second planetary gear set (PG2), into which the rotational power of the second motor/generator (MG2) is input, and two coupling members (BK1) (BK2), so that the overall configuration is It can be done simply.

또한, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 구성이 매우 간단함으로써, 부피를 줄이고, 경량화에 따른 탑재성과 연비를 향상시킬 수 있다.In addition, the power transmission device for a hybrid vehicle according to an embodiment of the present invention has a very simple configuration, thereby reducing the volume and improving mountability and fuel efficiency due to weight reduction.

또한, 본 발명의 실시 예에 따른 하이브리드 차량용 동력전달장치는 동력전달이 모두 기계적으로 이루어짐으로써, 동력전달성능을 향상시켜 연비를 향상시킬 수 있다.In addition, in the power transmission device for a hybrid vehicle according to an embodiment of the present invention, all power transmission is mechanically performed, thereby improving power transmission performance and improving fuel efficiency.

상기에서는 본 발명의 바람직한 실시 예를 참조하여 설명하였으나, 해당 기술 분야에서 통상의 지식을 가진 자라면 하기의 특허 청구의 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although the present invention has been described above with reference to preferred embodiments, those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be modified and changed.

BK1,BK2... 제1, 제2 브레이크
FOSG... 출력피동기어
IOPG1,IOPG2... 제1, 제2 출력구동기어
IPG1... 제1 구동기어
ISG1... 제1 피동기어
IS... 입력축
MG1,MG2... 제1, 제2 모터/제너레이터
MS1,MS2... 제1, 제2 모터축
OS... 출력축
PG1,PG2... 제1, 제2 유성기어세트BK1,BK2... 1st, 2nd brake
FOSG... output driven gear
IOPG1, IOPG2... 1st, 2nd output drive gear
IPG1... 1st driving gear
ISG1... 1st driven gear
IS... input shaft
MG1,MG2... 1st, 2nd motor/generator
MS1,MS2... 1st, 2nd motor shaft
OS... output shaft
PG1, PG2... 1st, 2nd planetary gear sets

Claims (7)

엔진과, 제1, 제2 모터/제너레이터를 동력원으로 하며,
상기 엔진의 회전동력이 입력되는 입력축;
상기 입력축과 동일 축선 상에 배치되어 상기 제1 모터/제너레이터와 동력 연결되는 제1 모터축;
상기 입력축과 일정간격을 두고 평행하게 배치되어 상기 제2 모터/제너레이터와 동력 연결되는 제2 모터축;
상기 제1 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제1 모터축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 다른 하나의 회전요소가 상기 입력축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 또 다른 하나의 회전요소가 출력요소로 작동하는 제1 유성기어세트;
상기 제2 모터축 상에 배치되어 3개의 회전요소 중, 하나의 회전요소가 상기 제2 모터축과 고정 연결되고, 다른 하나의 회전요소가 출력요소로 작동하고, 또 다른 하나의 회전요소가 상기 입력축의 회전동력을 전달받는 제2 유성기어세트;
상기 입력축과 일정 간격을 두고 평행하게 배치되어 상기 제1, 제2 유성기어세트로부터 전달되는 회전동력을 디프렌셜로 전달하는 출력축;
상기 입력축과 일정 간격을 두고 형행하게 배치되어 상기 입력축으로부터 전달되는 회전동력을 상기 제2 유성기어세트로 전달하는 아이들 축;
상기 제1, 제2 유성기어세트의 회전동력을 상기 출력축으로 전달하는 제1 기어열; 및
상기 입력축의 회전동력을 상기 제2 유성기어세트로 전달하는 제2 기어열;
을 포함하는 하이브리드 차량용 동력전달장치.The engine and the first and second motors/generators are used as power sources,
An input shaft through which the rotational power of the engine is input;
a first motor shaft disposed on the same axis as the input shaft and connected to the first motor/generator for power;
a second motor shaft disposed in parallel with the input shaft at a certain distance and connected to the second motor/generator for power;
Among the three rotating elements disposed on the first motor shaft, one rotating element is fixedly connected to the first motor shaft and selectively connected to the transmission housing, and the other rotating element is fixedly connected to the input shaft. At the same time, a first planetary gear set is selectively connected to the transmission housing, and another rotation element operates as an output element;
Among the three rotation elements disposed on the second motor shaft, one rotation element is fixedly connected to the second motor shaft, another rotation element operates as an output element, and another rotation element is connected to the second motor shaft. A second planetary gear set that receives the rotational power of the input shaft;
an output shaft disposed in parallel with the input shaft at a predetermined distance and transmitting rotational power transmitted from the first and second planetary gear sets to a differential;
an idle shaft disposed at a predetermined distance from the input shaft and transmitting rotational power transmitted from the input shaft to the second planetary gear set;
a first gear train transmitting rotational power of the first and second planetary gear sets to the output shaft; and
a second gear train transmitting the rotational power of the input shaft to the second planetary gear set;
A power transmission device for a hybrid vehicle comprising a. 제1항에 있어서,
상기 제1 유성기어세트는
싱글 피니언 유성기어세트로 이루어지며, 제1 선기어가 제1 모터축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 제1 유성캐리어가 입력축과 고정 연결됨과 동시에, 변속기 하우징에 선택적으로 연결되고, 제1 링기어가 출력요소로 작동되는 하이브리드 차량용 동력전달장치.According to paragraph 1,
The first planetary gear set is
It consists of a single pinion planetary gear set, where the first sun gear is fixedly connected to the first motor shaft and selectively connected to the transmission housing, and the first planetary carrier is fixedly connected to the input shaft and selectively connected to the transmission housing. , A power transmission device for a hybrid vehicle in which the first ring gear operates as an output element. 제2항에 있어서,
상기 제1 선기어는
상기 제1 모터축과 변속기 하우징 사이에 구성되는 제1 브레이크에 의해 선택적인 고정요소로 작동하고,
상기 제1 유성캐리어는
상기 입력축과 변속기 하우징 사이에 구성되는 제2 브레이크에 의해 선택적인 고정요소로 작동하는 하이브리드 차량용 동력전달장치.According to paragraph 2,
The first sun gear is
Operates as an optional fixing element by means of a first brake configured between the first motor shaft and the transmission housing,
The first planetary carrier is
A power transmission device for a hybrid vehicle that operates as a selective fixing element by a second brake configured between the input shaft and the transmission housing. 제2항에 있어서,
상기 제2 유성기어세트는
싱글 피니언 유성기어세트로 이루어지며, 제2 선기어가 상기 제2 모터축과 고정 연결되고, 제2 유성캐리어가 출력요소로 작동되고, 제2 링기어가 상기 입력축의 회전동력을 전달받는 하이브리드 차량용 동력전달장치.According to paragraph 2,
The second planetary gear set is
Power for a hybrid vehicle consisting of a single pinion planetary gear set, where the second sun gear is fixedly connected to the second motor shaft, the second planetary carrier operates as an output element, and the second ring gear receives the rotational power of the input shaft. Transmission device. 제4항에 있어서,
상기 제1 기어열은
상기 제1 유성기어세트를 포함하며, 상기 제1 링기어에 고정 연결되는 제1 출력구동기어와, 상기 출력축에 고정 연결되어 상기 제1 출력구동기어와 외접 기어 연결되는 출력피동기어와, 상기 제2 유성캐리어에 고정 연결되어 상기 출력피동기어와 외접 기어 연결되는 제2 출력구동기어를 포함하는 하이브리드 차량용 동력전달장치.According to paragraph 4,
The first gear train is
It includes the first planetary gear set, a first output driving gear fixedly connected to the first ring gear, an output driven gear fixedly connected to the output shaft and connected to the first output driving gear and an external gear, and 2 A power transmission device for a hybrid vehicle including a second output drive gear fixedly connected to a planetary carrier and connected to the output driven gear and an external gear. 제5항에 있어서,
상기 제2 기어열은
상기 제2 유성기어세트를 포함하며, 상기 입력축에 고정 연결되는 제1 구동기어와, 상기 아이들 축 상에 구성되어 상기 제1 구동기어와 외접 기어 연결되는 아이들 기어와, 상기 제2 링기어에 고정 연결되어 상기 아이들 기어와 외접 기어 연결되는 제1 피동기어를 포함하는 하이브리드 차량용 동력전달장치.According to clause 5,
The second gear train is
It includes the second planetary gear set, a first drive gear fixedly connected to the input shaft, an idle gear configured on the idle shaft and connected to the first drive gear and an external gear, and fixed to the second ring gear. A power transmission device for a hybrid vehicle including a first driven gear connected to the idle gear and an external gear. 제6항에 있어서,
상기 제1 출력구동기어와 상기 제1 피동기어는 기어 잇수가 동일하고,
상기 출력피동기어와 상기 아이들 기어는 기어 잇수가 동일하고,
상기 제2 출력구동기어와 상기 제1 구동기어는 기어 잇수가 동일하게 설정되는 하이브리드 차량용 동력전달장치.According to clause 6,
The first output drive gear and the first driven gear have the same number of gear teeth,
The output driven gear and the idle gear have the same number of gear teeth,
A power transmission device for a hybrid vehicle in which the second output drive gear and the first drive gear have the same number of gear teeth.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000127774A (en) 1998-10-26 2000-05-09 Kyowa Gokin Kk Vehicular drive device
JP2005001563A (en) 2003-06-12 2005-01-06 Honda Motor Co Ltd Power transmission device for hybrid vehicle
JP2015205549A (en) 2014-04-18 2015-11-19 トヨタ自動車株式会社 Hybrid-vehicular control apparatus
CN108327515A (en) 2018-02-09 2018-07-27 重庆大学 Hybrid electric vehicle power drive system based on double planet wheel rows of mixing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000127774A (en) 1998-10-26 2000-05-09 Kyowa Gokin Kk Vehicular drive device
JP2005001563A (en) 2003-06-12 2005-01-06 Honda Motor Co Ltd Power transmission device for hybrid vehicle
JP2015205549A (en) 2014-04-18 2015-11-19 トヨタ自動車株式会社 Hybrid-vehicular control apparatus
CN108327515A (en) 2018-02-09 2018-07-27 重庆大学 Hybrid electric vehicle power drive system based on double planet wheel rows of mixing

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