KR101483709B1 - Power transmission system of hybrid electric vehicle - Google Patents
Power transmission system of hybrid electric vehicle Download PDFInfo
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- KR101483709B1 KR101483709B1 KR1020130157661A KR20130157661A KR101483709B1 KR 101483709 B1 KR101483709 B1 KR 101483709B1 KR 1020130157661 A KR1020130157661 A KR 1020130157661A KR 20130157661 A KR20130157661 A KR 20130157661A KR 101483709 B1 KR101483709 B1 KR 101483709B1
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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
- B60K6/42—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
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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
- 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
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
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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
- B60K6/26—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
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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
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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
- B60K6/42—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
- B60K6/442—Series-parallel switching type
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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
- B60K6/42—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
Abstract
Description
본 발명은 하이브리드 자동차의 동력전달장치에 관한 것으로서, 보다 상세하게는 2개의 모터/제너레이터를 적용하여 전자적 무단 변속 주행이 가능하며, 구성부품을 단순화하여 탑재성 및 시스템 효율을 극대화함으로써, 연비 및 요구 성능을 최적화할 수 있는 하이브리드 자동차의 동력전달장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission apparatus for a hybrid vehicle, and more particularly, to a power transmission apparatus for a hybrid vehicle, which is capable of electronically steplessly changing speed by applying two motor / generators, And to a power transmission device of a hybrid vehicle capable of optimizing performance.
자동차의 친환경 기술은 미래 자동차 산업의 생존이 달린 핵심기술로서, 선진 자동차 메이커들은 환경 및 연비 규제를 달성하기 위한 친환경 자동차 개발에 총력을 기울이고 있다.The environmentally friendly technology of automobiles is a core technology with survival of the future automobile industry, and advanced automobile manufacturers are concentrating on development of environmentally friendly vehicles to achieve 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, automobile manufacturers are developing electric vehicles (EVs), hybrid electric vehicles (HEVs), and fuel cell electric vehicles (FCEVs) as futuristic 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. Because the above-mentioned future type of automobile has various technical limitations such as weight and cost, automakers pay attention to the hybrid vehicle as an alternative to realistic problems for satisfying exhaust gas regulations and improving fuel efficiency, and in order to put them into practical use There is intense 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 an automobile using two or more power sources and can be combined in various ways. The power source includes a gasoline engine or a diesel engine using conventional fossil fuel, a motor driven by electric energy, / Generator is mixed and used.
이러한 하이브리드 자동차는 저속에서 상대적으로 저속토크 특성이 좋은 모터/제너레이터를 주 동력원으로 사용하고, 고속에서는 상대적으로 고속토크 특성이 좋은 엔진을 주 동력원으로 사용한다.Such a hybrid vehicle uses a motor / generator having a relatively low torque characteristic at a low speed as a main power source and an engine having a relatively high torque characteristic at a high speed as a main power source.
이에 따라, 하이브리드 자동차는 저속구간에서 화석 연료를 사용하는 엔진의 작동이 정지되고, 모터/제너레이터를 사용하기 때문에 연비 개선과 배기가스의 저감에 우수한 효과가 있다.Accordingly, the hybrid vehicle has an effect of improving the fuel economy and reducing the exhaust gas because the operation of the engine using the fossil fuel is stopped in the low speed section and the motor / generator is used.
그리고 상기와 같은 하이브리드 자동차의 동력전달장치는 단일모드 방식과 다중모드 방식으로 분류된다.The power transmission devices of the hybrid vehicle are classified into a single mode mode and a multimode mode.
상기 단일모드 방식은 변속제어를 위한 클러치 및 브레이크와 같은 토크전달기구가 필요하지 않다는 장점은 있으나, 고속 주행 시 효율이 저하되어 연비가 낮고 대형 자동차에 적용하기 위해서는 부가적인 토크 증배 장치가 필요하다는 단점이 있다.The single-mode system has an advantage in that a torque transmission mechanism such as a clutch and a brake for the shift control is not required. However, the efficiency is lowered at high speed driving and the fuel mileage is low and an additional torque multiplication device is required for application to a large- .
상기 다중모드 방식은 고속 주행 시 효율이 높고, 자체적으로 토크 증배가 가능하도록 설계할 수 있어 중대형 자동차에 적용이 가능하다는 장점이 있다.The multi-mode system can be designed to have high efficiency during high-speed traveling and to be capable of torque multiplication by itself, which is advantageous in that it can be applied to a middle- or large-sized vehicle.
이에 따라, 최근에는 단일모드 방식보다는 다중모드 방식을 주로 채택하고 있으며, 그에 따른 연구가 활발하게 진행되고 있다.Accordingly, recently, a multimode method is mainly adopted rather than a single mode method, and researches thereon have been actively pursued.
상기 다중모드 방식의 동력전달장치는 복수의 유성기어세트와, 모터 및 발전기로 사용되는 복수의 모터/제너레이터와, 상기 유성기어세트의 회전요소를 제어할 수 있는 복수의 토크전달기구(마찰요소)와, 상기 모터/제너레이터의 에너지원으로 사용되는 배터리 등을 포함하여 이루어진다.The multimode type power transmission apparatus includes a plurality of planetary gear sets, a plurality of motor / generators used as motors and generators, a plurality of torque transmission mechanisms (friction elements) capable of controlling the rotation elements of the planetary gear set, And a battery used as an energy source of the motor / generator.
이러한 다중모드 방식의 동력전달장치는 상기의 유성기어세트, 모터/제너레이터, 토크전달기구의 연결 구성에 따라 상이한 작동 메카니즘을 갖는다. Such a multimode type power transmission apparatus has a different operating mechanism depending on the connection configuration of the above-mentioned planetary gear set, the motor / generator, and the torque transmission mechanism.
또한, 상기 다중모드 방식의 동력전달장치는 그 연결 구성에 따라 내구성, 동력전달효율, 크기 등이 달라지는 특성이 있기 때문에 하이브리드 자동차의 동력전달장치 분야에서는 보다 견고하고, 동력손실이 없으며, 콤팩트한 동력전달장치를 구현하기 위한 연구 개발이 지속되고 있다.In addition, since the multimode type power transmission device has characteristics such as durability, power transmission efficiency, size and the like depending on its connection configuration, it is more robust in the power transmission device field of a hybrid vehicle, Research and development for implementing a transmission device is continuing.
본 발명의 실시 예는 2개의 모터/제너레이터를 적용하여 전자적 무단 변속 주행이 가능하며, 구성부품을 단순화하여 탑재성 및 시스템 효율을 극대화함으로써, 연비 및 요구 성능을 최적화할 수 있는 하이브리드 자동차의 동력전달장치를 제공하고자 한다.The embodiment of the present invention is a hybrid vehicle in which two motor / generators are applied to enable the electronic stepless change-speed travel, simplifies the component parts, maximizes the mountability and system efficiency, Device.
본 발명의 하나 또는 다수의 실시 예에서는 엔진의 회전동력이 전달되는 입력축; 상기 입력축 상에 배치되어 엔진의 회전동력을 증속하여 출력하는 유성기어세트; 상기 유성기어세트로부터 전달되는 구동력에 의하여 제너레이터 기능을 수행하며, 엔진의 시동용 모터 기능을 수행하는 제1 모터/제너레이터; 상기 입력축과 소정의 간격을 두고 평행하게 배치되어 상기 입력축으로부터 선택적으로 엔진의 회전동력을 전달받는 출력축; 상기 출력축과 직접 연결되어 차량의 주행을 위한 구동력을 보조하는 모터 기능을 수행하며, 차량의 감속 시에는 차량의 관성력을 전기에너지로 회생하는 제너레이터로서의 기능을 수행하는 제2 모터/제너레이터; 상기 출력축으로부터 동력을 전달받아 구동륜으로 전달하는 종감속 수단을 포함하는 하이브리드 자동차의 동력전달장치를 제공할 수 있다.In one or more embodiments of the present invention, an input shaft through which rotational power of an engine is transmitted; A planetary gear set disposed on the input shaft for increasing the rotational power of the engine and outputting the rotational power; A first motor / generator that performs a generator function by a driving force transmitted from the planetary gear set and performs a function of a starting motor of the engine; An output shaft disposed parallel to the input shaft at a predetermined interval and selectively receiving rotational power of the engine from the input shaft; A second motor / generator which is directly connected to the output shaft to perform a motor function for assisting a driving force for driving the vehicle and to function as a generator for regenerating an inertial force of the vehicle into electric energy when the vehicle decelerates; And a longitudinal deceleration means for receiving power from the output shaft and transmitting the power to the drive wheels.
또한, 상기 유성기어세트는 선기어가 변속기 하우징과 직접 연결되고, 유성캐리어가 입력축과 직접 연결되며, 링기어가 제1 모터/제너레이터의 제1 로터와 연결되는 싱글 피니언 유성기어세트로 이루어질 수 있다. Also, the planetary gear set may be composed of a single pinion planetary gear set in which the sun gear is directly connected to the transmission housing, the planetary carrier is directly connected to the input shaft, and the ring gear is connected to the first rotor of the first motor / generator.
또한, 상기 출력축은 상기 입력축 상에 회전 간섭 없이 배치되어 선택적으로 입력축과 연결되는 아이들 기어와 외접 기어 연결되는 입력기어와, 상기 종감속 수단의 종감속 기어와 외접 기어 연결되는 출력기어를 포함할 수 있다.The output shaft may include an input gear disposed on the input shaft without rotation interference and connected to an external gear and an idle gear selectively connected to the input shaft, and an output gear connected to the external reduction gear and the external gear of the longitudinal deceleration means. have.
또한, 상기 입력축과 상기 아이들 기어 사이에는 클러치가 배치될 수 있다.A clutch may be disposed between the input shaft and the idle gear.
또한, 상기 유성기어세트는 제1 모터/제너레이터의 반경방향 내측부에 배치될 수 있다. Further, the planetary gear set may be disposed at the radially inner side of the first motor / generator.
본 발명의 실시 예는 EV 모드 시, 엔진은 정지되고, 제2 모터/제너레이터에 의해 차량이 구동되므로 불필요한 기계적 손실을 최소화하여 감속기와 같은 동등 수준의 동력전달효율을 확보할 수 있다.In the EV mode of the present invention, since the engine is stopped and the vehicle is driven by the second motor / generator in the EV mode, unnecessary mechanical loss can be minimized and an equal level of power transmission efficiency such as a speed reducer can be ensured.
또한, 엔진 모드에서 엔진(ENG)의 회전동력이 2개의 외접기어를 통해 최종적으로 디프렌셜(DIFF)에 전달됨으로써, 불필요한 기계적 손실을 최소화할 수 있다.In addition, in the engine mode, the rotational power of the engine ENG is transmitted to the differential gear (DIFF) through the two external gears, thereby minimizing unnecessary mechanical loss.
또한, 구성부품이 단순화하여 탑재성 및 시스템 효율을 극대화할 수 있으며, 그에 따른 연비 및 요구 성능을 최적화할 수 있다. In addition, the components can be simplified to maximize the mountability and the system efficiency, thereby optimizing the fuel consumption and the required performance.
도 1은 본 발명의 실시 예에 따른 동력전달장치에 대한 구성도이다.
도 2는 본 발명의 실시 예에 따른 동력전달장치의 EV 모드에서의 동력전달 계통도이다.
도 3은 본 발명의 실시 예에 따른 동력전달장치의 HEV 모드에서의 동력전달 계통도이다.
도 4는 본 발명의 실시 예에 따른 동력전달장치의 엔진 모드에서의 동력전달 계통도이다.1 is a configuration diagram of a power transmitting apparatus according to an embodiment of the present invention.
2 is a power transmission system diagram in the EV mode of the power transmission apparatus according to the embodiment of the present invention.
3 is a power transmission system diagram in the HEV mode of the power transmission apparatus according to the embodiment of the present invention.
4 is a power transmission system diagram in the engine mode of the power transmission apparatus according to the embodiment of the present invention.
이하, 본 발명의 실시 예들을 첨부한 도면을 통하여 상세하게 설명한다. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
단, 본 발명의 실시 예를 명확하게 설명하기 위하여 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 도면부호를 적용하여 설명한다.In order to clearly illustrate the embodiments of the present invention, parts that are not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the entire specification.
하기의 설명에서 구성의 명칭을 제1, 제2 등으로 구분한 것은 그 구성의 명칭이 동일하여 이를 구분하기 위한 것으로, 반드시 그 순서에 한정되는 것은 아니다.In the following description, the names of the components are denoted by the first, second, etc. in order to distinguish them from each other because the names of the components are the same and are not necessarily limited to the order.
도 1은 본 발명의 실시 예에 따른 하이브리드 자동차의 동력전달장치에 대한 구성도이다.1 is a configuration diagram of a power transmission device of a hybrid vehicle according to an embodiment of the present invention.
도 1을 참조하면, 본 발명의 실시 예에 따른 하이브리드 자동차의 동력전달장치는 엔진(ENG), 입력축(IS), 유성기어세트(PG), 제1 모터/제너레이터(MG1), 출력축(OS), 제2 모터 제너레이터(MG2)를 포함하여 이루어진다.1, a power transmission apparatus for a hybrid vehicle according to an embodiment of the present invention includes an engine ENG, an input shaft IS, a planetary gear set PG, a first motor / generator MG1, an output shaft OS, , And a second motor generator MG2.
상기 엔진(ENG)은 주 동력원으로서, 기존의 화석 연료를 사용하는 가솔린 엔진 또는 디젤 엔진 등의 공지된 각종 엔진이 이용될 수 있다.As the main power source, the engine (ENG) may be a known various engine such as a gasoline engine or a diesel engine using conventional fossil fuel.
상기 입력축(IS)은 입력부재로서, 엔진(ENG)에서 발생된 회전동력을 변속기 측으로 전달하며, 상기 입력축(IS)은 댐퍼 및 클러치를 통해 엔진(ENG)의 출력축과 연결될 수 있으며, 상기 댐퍼 및 클러치의 개입 없이 직접 연결될 수 있다.The input shaft IS is an input member and transmits the rotational power generated in the engine ENG to the transmission side. The input shaft IS can be connected to the output shaft of the engine ENG via a damper and a clutch, Can be directly connected without the intervention of the clutch.
상기 유성기어세트(PG)는 싱글 피니언 유성기어세트와 더블 피니언 유성기어세트와 같은 단순 유성기어세트로 이루어지는데, 본 발명에서는 싱글 피니언 유성기어세트를 적용한 것으로 예시하고 있다.The planetary gear set PG is made up of a simple planetary gear set such as a single pinion planetary gear set and a double pinion planetary gear set. The present invention exemplifies the application of the single pinion planetary gear set.
상기 유성기어세트(PG)는 선기어(S)와, 링기어(R)와, 상기 선기어(S)와 링기어(R) 사이에 치합되는 다수의 피니언(P)을 지지하는 유성캐리어(PC)를 포함하여 이루어진다.The planetary gear set PG includes a sun gear S, a ring gear R and a planetary carrier PC supporting a plurality of pinions P meshed between the sun gear S and the ring gear R, .
상기에서 선기어(S)는 변속기 하우징(H)과 직접 연결되어 항상 고정요소로 작동하며, 상기 유성캐리어(PC)는 상기 입력축(IS)과 직접 연결되어 항상 입력요소로 작동하며, 상기 링기어(R)는 항상 출력요소로 작동한다.The sun gear S is directly connected to the transmission housing H and always operates as a fixed element and the planetary carrier PC is directly connected to the input shaft IS and always operates as an input element, R) always acts as an output element.
이에 따라, 상기 유성기어세트(PG)는 유성캐리어(PC)로 입력되는 회전동력을 증속하여 링기어(R)를 통해 출력한다.Accordingly, the planetary gear set PG increases the rotational power input to the planetary carrier PC and outputs it through the ring gear R.
상기 제1 모터/제너레이터(MG1)는 변속기 하우징(H)에 고정되는 제1 스테이터(ST1)와, 상기 제1 스테이터(ST1)의 반경방향 내측에서 회전 가능하게 지지되는 제1 로터(RT1)를 포함하여 이루어진다.The first motor / generator MG1 includes a first stator ST1 fixed to the transmission housing H and a first rotor RT1 rotatably supported in the radial direction of the first stator ST1 .
상기 제1 로터(RT1)는 반경방향 내측부에 위치한 상기 유성기어세트(PG)의 링기어(R)와 직접 연결되어 엔진(ENG)의 회전동력에 의하여 제너레이터 기능을 하면서 발전되는 전기에너지를 미도시한 배터리에 충전하거나, 상기 제2 모터/제너레이터(MG2)에 전기에너지를 공급할 수 있다.The first rotor RT1 is connected directly to the ring gear R of the planetary gear set PG located at the radially inward portion and does not supply electric energy generated by the rotational power of the engine ENG, Or to supply electric energy to the second motor / generator MG2.
또한, 상기 제1 모터/제너레이터(MG1)는 엔진(ENG)의 시동 시, 엔진 스타트 모터의 역할을 수행한다.The first motor / generator MG1 serves as an engine start motor at the start of the engine ENG.
상기 출력축(OS)은 상기 입력축(IS)과 소정의 간격을 두고 평행하게 배치되며, 양측에 입력기어(IG)에 출력기어(OG)는 보유한다.The output shaft OS is disposed parallel to the input shaft IS at a predetermined interval and holds the output gear OG on the input gear IG on both sides.
상기 입력기어(IG)는 상기 입력축(IS)상에 회전 간섭 없이 배치되는 아이들 기어(IDG)와 외접 기어 연결되며, 상기 출력기어(OG)는 종감속 수단인 디프렌셜(DIFF)의 종감속 기어(FG)와 외접 기어 연결된다.The input gear IG is connected to an idle gear IDG disposed on the input shaft IS without rotating intervention and the output gear OG is connected to an IDG And the external gear is connected to the gear FG.
상기에서 아이들 기어(IDG)는 동력단속수단인 클러치(CL)를 개재시켜 상기 입력축(IS)과 선택적으로 연결되며, 상기 클러치(CL)가 작동 제어되면 엔진(ENG)의 회전동력을 출력축(OS)으로 전달할 수 있다. The idle gear IDG is selectively connected to the input shaft IS through a clutch CL which is a power interrupting means. When the clutch CL is operated and controlled, the idling gear is transmitted to the output shaft OS ).
상기 제2 모터/제너레이터(MG2)는 변속기 하우징(H)에 고정되는 제2 스테이터(ST2)와, 상기 제2 스테이터(ST2)의 반경방향 내측에서 회전 가능하게 지지되는 제2 로터(RT2)를 포함하여 이루어지며, 상기 제2 로터(RT2)는 출력축(OS)과 직접 연결된다. The second motor / generator MG2 includes a second stator ST2 fixed to the transmission housing H and a second rotor RT2 rotatably supported inside the second stator ST2 radially , And the second rotor (RT2) is directly connected to the output shaft (OS).
이에 따라, 상기 제2 모터/제너레이터(MG2)는 주로 차량의 주행을 위한 구동력을 보조하는 모터 기능을 수행하며, 차량의 감속 시에는 차량의 관성력을 전기에너지로 회생하는 제너레이터로서의 기능을 수행할 수 있다.Accordingly, the second motor / generator MG2 mainly performs a motor function for assisting the driving force for driving the vehicle, and can function as a generator for regenerating the inertial force of the vehicle into electric energy at the time of deceleration of the vehicle have.
도 2는 본 발명의 실시 예에 따른 동력전달장치의 EV 모드에서의 동력전달 계통도이다.2 is a power transmission system diagram in the EV mode of the power transmission apparatus according to the embodiment of the present invention.
도 2를 참조하면, EV 모드에서는 엔진(ENG)이 정지된 상태에서 제2 모터/제너레이터(MG2)의 구동력이 출력축(OS), 출력기어(OG)를 통하여 디프렌셜(DIFF)의 종감속 기어(FG)로 전달되면서 구동륜을 구동시킨다.2, in the EV mode, the driving force of the second motor / generator MG2 is transmitted through the output shaft OS and the output gear OG in the state where the engine ENG is stopped, the longitudinal deceleration of the differential DIFF And is transmitted to the gear FG to drive the drive wheels.
즉, EV 모드에서는 제2 모터/제너레이터(MG2)의 출력 제어를 통해 전자적 무단 변속이 이루어지면서 차량의 주행이 이루어진다.That is, in the EV mode, the electronic continuously-variable shifting is performed through the output control of the second motor / generator MG2, and the vehicle runs.
도 3은 본 발명의 실시 예에 따른 동력전달장치의 HEV 모드에서의 동력전달 계통도이다.3 is a power transmission system diagram in the HEV mode of the power transmission apparatus according to the embodiment of the present invention.
도 3을 참조하면, HEV 모드에서는 엔진(ENG)의 회전동력이 상기 제1 모터/제너레이터(MG1)의 발전용으로 전달되며, 제2 모터/제너레이터(MG2)의 회전동력은 상기 EV 모드와 마찬가지로 차량 구동용으로 전달된다.Referring to FIG. 3, in the HEV mode, the rotational power of the engine ENG is transmitted to the first motor / generator MG1 for power generation, and the rotational power of the second motor / generator MG2 is, And is transmitted to drive the vehicle.
즉, 엔진(ENG)은 제1 모터/제너레이터(MG1)에 의하여 시동이 이루어지며, 엔진(ENG)의 회전동력은 유성기어세트(PG)에서 증속되어 제1 모터/제너레이터(MG1)로 입력되면서 발전용 구동력으로 전달된다.That is, the engine ENG is started by the first motor / generator MG1, the rotational power of the engine ENG is increased by the planetary gear set PG and input to the first motor / generator MG1 Power generation driving force.
상기 제1 모터/제너레이터(MG1)에서 발전된 전기 에너지는 제2 모터/제너레이터(MG2)의 구동을 위한 전기에너지로 사용되거나 배터리에 충전된다.The electric energy generated in the first motor / generator MG1 is used as electric energy for driving the second motor / generator MG2 or charged in the battery.
도 4는 본 발명의 실시 예에 따른 동력전달장치의 엔진 모드에서의 동력전달 계통도이다.4 is a power transmission system diagram in the engine mode of the power transmission apparatus according to the embodiment of the present invention.
도 4를 참조하면, 엔진 모드에서는 클러치(CL)가 작동하면서 엔진의 회전동력이 발전용과 구동용으로 동시 공급된다.Referring to Fig. 4, in the engine mode, the rotational power of the engine is simultaneously supplied for power generation and driving while the clutch CL is operated.
즉, 엔진(ENG)의 회전동력은 유성기어세트(PG)에서 증속되어 제1 모터/제너레이터(MG1)에 발전용 구동력으로 전달됨과 동시에, 클러치(CL)를 통해 아이들 기어(IDG), 입력기어(IG), 출력축(OS), 출력기어(OG), 디프렌셜(DIFF)의 종감속 기어(FG)를 통해 차량의 구동용 구동력으로 전달된다.That is, the rotational power of the engine ENG is increased by the planetary gear set PG and transmitted to the first motor / generator MG1 as a power generation driving force, and at the same time, the idle gear IDG, Is transmitted to the driving force of the vehicle through the output shaft (IG), the output shaft (OS), the output gear (OG) and the differential reduction gear (FG) of differential gear (DIFF).
상기와 같은 본 발명의 실시예에 따른 동력전달장치는 EV 모드 시, 엔진은 정지되고, 제2 모터/제너레이터에 의해 차량이 구동되므로 불필요한 기계적 손실을 최소화하여 감속기와 같은 동등 수준의 동력전달효율을 확보할 수 있다.Since the engine is stopped and the vehicle is driven by the second motor / generator in the EV mode, the unnecessary mechanical loss is minimized and the same power transmission efficiency as the speed reducer is obtained .
또한, 엔진 모드에서 엔진(ENG)의 회전동력이 2개의 외접기어를 통해 최종적으로 디프렌셜(DIFF)에 전달됨으로써, 불필요한 기계적 손실을 최소화할 수 있다.In addition, in the engine mode, the rotational power of the engine ENG is transmitted to the differential gear (DIFF) through the two external gears, thereby minimizing unnecessary mechanical loss.
또한, 구성부품이 단순화하여 탑재성 및 시스템 효율을 극대화할 수 있으며, 그에 따른 연비 및 요구 성능을 최적화할 수 있다.In addition, the components can be simplified to maximize the mountability and the system efficiency, thereby optimizing the fuel consumption and the required performance.
이상으로 본 발명의 바람직한 실시 예들을 설명하였으나, 본 발명은 상기 실시 예에 한정되지 아니하며, 본 발명의 실시 예로부터 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 용이하게 변경되어 균등하다고 인정되는 범위의 모든 변경을 포함한다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Includes all changes to the scope permitted.
CL... 클러치
DIFF... 디프렌셜
FG... 종감속 기어
IG... 입력기어
IDG... 아이들 기어
IS... 입력축
MG1, MG2... 제1, 제2 모터/제너레이터
OG... 출력기어
OS... 출력축
PG... 유성기어세트 CL ... clutch
DIFF ... Differential
FG ... longitudinal reduction gear
IG ... input gear
IDG ... idle gear
IS ... input shaft
MG1, MG2 ... First and second motor / generators
OG ... output gear
OS ... Output shaft
PG ... planetary gear set
Claims (5)
상기 입력축 상에 배치되어 엔진의 회전동력을 증속하여 출력하는 유성기어세트;
상기 유성기어세트로부터 전달되는 구동력에 의하여 제너레이터 기능을 수행하며, 엔진의 시동용 모터 기능을 수행하는 제1 모터/제너레이터;
상기 입력축과 소정의 간격을 두고 평행하게 배치되어 상기 입력축으로부터 선택적으로 엔진의 회전동력을 전달받는 출력축;
상기 출력축과 직접 연결되어 차량의 주행을 위한 구동력을 보조하는 모터 기능을 수행하며, 차량의 감속 시에는 차량의 관성력을 전기에너지로 회생하는 제너레이터로서의 기능을 수행하는 제2 모터/제너레이터;
상기 출력축으로부터 동력을 전달받아 구동륜으로 전달하는 종감속 수단을 포함하는 하이브리드 자동차의 동력전달장치.An input shaft through which rotational power of the engine is transmitted;
A planetary gear set disposed on the input shaft for increasing the rotational power of the engine and outputting the rotational power;
A first motor / generator that performs a generator function by a driving force transmitted from the planetary gear set and performs a function of a starting motor of the engine;
An output shaft disposed parallel to the input shaft at a predetermined interval and selectively receiving rotational power of the engine from the input shaft;
A second motor / generator which is directly connected to the output shaft to perform a motor function for assisting a driving force for driving the vehicle and to function as a generator for regenerating an inertial force of the vehicle into electric energy when the vehicle decelerates;
And a longitudinal deceleration means for receiving power from the output shaft and transmitting the power to the drive wheels.
상기 유성기어세트는
선기어가 변속기 하우징과 직접 연결되고, 유성캐리어가 입력축과 직접 연결되며, 링기어가 제1 모터/제너레이터의 제1 로터와 연결되는 싱글 피니언 유성기어세트로 이루어지는 하이브리드 자동차의 동력전달장치.The method according to claim 1,
The planetary gear set
Wherein the sun gear is directly connected to the transmission housing, the planetary carrier is directly connected to the input shaft, and the ring gear is connected to the first rotor of the first motor / generator.
상기 출력축은
상기 입력축 상에 회전 간섭 없이 배치되어 선택적으로 입력축과 연결되는 아이들 기어와 외접 기어 연결되는 입력기어와, 상기 종감속 수단의 종감속 기어와 외접 기어 연결되는 출력기어를 포함하는 하이브리드 자동차의 동력전달장치.The method according to claim 1,
The output shaft
An input gear disposed on the input shaft without rotation interference and selectively connected to an input shaft and an external gear connected to the input shaft; and an output gear connected to the external reduction gear and the external gear of the longitudinal deceleration means. .
상기 입력축과 상기 아이들 기어 사이에는 클러치가 배치되는 하이브리드 자동차의 동력전달장치.The method of claim 3,
And a clutch is disposed between the input shaft and the idle gear.
상기 유성기어세트는
제1 모터/제너레이터의 반경방향 내측부에 배치되는 하이브리드 자동차의 동력전달장치.The method according to claim 1,
The planetary gear set
Wherein the first motor / generator is disposed at a radially inner side of the first motor / generator.
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| KR102578581B1 (en) * | 2023-07-11 | 2023-09-14 | 강수정 | Power train for plug-in hybrid vehicle using multi-functional starter-generator and control method thereof |
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