KR20110006907A - Power train for hybrid vehicle - Google Patents

Power train for hybrid vehicle Download PDF

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KR20110006907A
KR20110006907A KR1020090064531A KR20090064531A KR20110006907A KR 20110006907 A KR20110006907 A KR 20110006907A KR 1020090064531 A KR1020090064531 A KR 1020090064531A KR 20090064531 A KR20090064531 A KR 20090064531A KR 20110006907 A KR20110006907 A KR 20110006907A
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South Korea
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planetary gear
gear set
input shaft
hybrid vehicle
motor generator
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KR1020090064531A
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Korean (ko)
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KR101126803B1 (en
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서강수
양호림
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현대자동차주식회사
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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
    • 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
    • B60K6/38—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 driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60K2006/266—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 with two coaxial motors or generators
    • 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

Abstract

PURPOSE: A power train for a hybrid vehicle is provided to enable a hybrid mode to be realized using only two sets of single pinion planetary gear, two clutches and two brakes and to ensure a space by a compact construction. CONSTITUTION: A power train for a hybrid vehicle comprises a first set of planetary gear(PG1), a second set of planetary gear(PG2), a first brake(BK1) and at least two power sources. The first set comprise a rotating element, which is selectively connected to an input shaft(IN), and another rotating element, which is connected to an output elememt(OUT). The second set comprises rotating elements, which are respectively connected to the input shaft and the output element. The first brake constrains the rotation of the rotating element of the first set, which is selectively connected to the input shaft. The power sources can supply power to the first and second sets.

Description

하이브리드 차량의 파워트레인{Power Train for Hybrid Vehicle}Power Train for Hybrid Vehicle

본 발명은 하이브리드 차량의 파워트레인에 관한 것으로서, 보다 상세하게는 구동륜에 구동력을 제공하는 동력원으로서 내연기관인 엔진과, 전기에 의해 구동되는 모터제너레이터를 사용하는 하이브리드 차량의 파워트레인 구조에 관한 기술이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power train of a hybrid vehicle, and more particularly, to a power train structure of a hybrid vehicle using an engine that is an internal combustion engine as a power source for providing driving force to a drive wheel and a motor generator driven by electricity.

엔진과 모터제너레이터를 사용하는 하이브리드 차량은, 저속에서는 상대적으로 저속토크특성이 우수한 모터제너레이터로부터의 동력을 구동력으로 이용하도록 하고, 고속에서는 상대적으로 고속토크특성이 우수한 엔진으로부터의 동력으로 차량이 구동되도록 하는 개념을 기반으로 하여 차량의 연비를 개선하도록 하고 있다.A hybrid vehicle using an engine and a motor generator may use power from a motor generator having a relatively low torque characteristic as a driving force at a low speed, and a vehicle may be driven with power from an engine having a relatively high torque characteristic at a high speed. Based on the concept to improve the fuel economy of the vehicle.

또한, 하이브리드 차량은 모터제너레이터만으로 구동되는 동안에는 엔진에 의한 배기가스가 발생할 여지가 없어서, 연비 개선과 배기가스 저감의 장점을 가진 친환경적인 자동차 기술로 인정받고 있다.In addition, while the hybrid vehicle is driven only by the motor generator, there is no room for the exhaust gas generated by the engine, and thus, the hybrid vehicle is recognized as an environmentally friendly vehicle technology having the advantages of fuel efficiency improvement and exhaust gas reduction.

상기와 같은 하이브리드 차량의 동력전달장치는 차량의 전 운전 영역에서 충 분한 구동력을 확보할 수 있도록 해야 함은 물론, 효율적인 운전으로 연비를 충분히 높게 확보할 수 있어야 할 필요가 있다.The power transmission device of the hybrid vehicle as described above needs to ensure sufficient driving force in the entire driving region of the vehicle, and also needs to be able to secure fuel efficiency sufficiently high by efficient driving.

본 발명은 동력분기방식에 의한 다중모드의 구현은 물론, 일반 변속기의 변속단처럼 고정된 기어비를 복수 개 제공하여, 차량의 주행상황에 따라 이들 다양한 주행모드에 의한 다중모드 운행이 가능하도록 함으로써, 차량의 전체 운전 영역에서 충분한 구동력을 확보함과 아울러 차량의 연비를 높게 확보할 수 있도록 한 하이브리드 차량의 파워트레인을 제공함에 그 목적이 있다.The present invention, as well as the implementation of the multi-mode by the power branch method, by providing a plurality of fixed gear ratio like the gear stage of the general transmission, by enabling the multi-mode operation by these various driving modes according to the driving situation of the vehicle, It is an object of the present invention to provide a power train of a hybrid vehicle that ensures sufficient driving force in the entire driving region of the vehicle and ensures high fuel economy of the vehicle.

상기한 바와 같은 목적을 달성하기 위하여 안출된 본 발명 하이브리드 차량의 파워트레인은The powertrain of the hybrid vehicle of the present invention devised to achieve the object as described above

입력축에 선택적으로 연결되는 회전요소와 출력요소에 연결되는 회전요소를 구비한 제1유성기어세트와;A first planetary gear set having a rotating element selectively connected to the input shaft and a rotating element connected to the output element;

상기 입력축과 상기 출력요소에 각각 연결되는 회전요소들을 구비한 제2유성기어세트와;A second planetary gear set having rotation elements connected to the input shaft and the output element, respectively;

상기 입력축에 선택적으로 연결되는 상기 제1유성기어세트의 회전요소의 회전을 구속할 수 있도록 구비된 제1브레이크와;A first brake provided to restrain rotation of the rotating element of the first planetary gear set selectively connected to the input shaft;

상기 제1유성기어세트와 제2유성기어세트에 구동력을 제공할 수 있도록 연결되는 적어도 2개 이상의 동력원;At least two power sources connected to provide a driving force to the first planetary gear set and the second planetary gear set;

을 포함하여 구성된 것을 특징으로 한다.And a control unit.

또한, 본 발명에 다른 하이브리드 차량의 파워트레인은 In addition, the powertrain of the hybrid vehicle according to the present invention is

엔진으로부터 동력을 입력 받는 입력축과;An input shaft for receiving power from the engine;

동력을 인출하는 출력요소와;An output element for drawing power;

동축상으로 배치된 제1유성기어세트 및 제2유성기어세트와;A first planetary gear set and a second planetary gear set coaxially disposed;

상기 입력축과 연결되는 상기 제2유성기어세트의 회전요소와 상기 제1유성기어세트의 한 회전요소를 선택적으로 연결하는 제1클러치와;A first clutch for selectively connecting a rotating element of the second planetary gear set and one rotating element of the first planetary gear set connected to the input shaft;

상기 제2유성기어세트의 두 회전요소 사이를 선택적으로 연결하는 제2클러치;A second clutch for selectively connecting between two rotating elements of the second planetary gear set;

를 포함하여 구성된 것을 특징으로 한다.Characterized in that configured to include.

본 발명에 따른 하이브리드 차량의 파워트레인은 싱글피니언 유성기어세트 2조와 클러치 2개 및 브레이크 2개 만을 이용하여 입력분기모드와 복합분기모드의 하이브리드모드를 구현할 수 있고, 더불어 상기 고정기어비모드를 2단에 걸쳐 구현할 수 있게 구성됨으로써, 컴팩트한 구성으로 차량의 공간확보에 유리하고 원가 절감에 기여할 수 있게 되며, 연속적인 변속비 구현이 가능하고, 상기 다양한 모드를 차량의 주행조건에 따라 적절히 전환함으로써, 차량의 연비를 개선할 수 있다.The powertrain of the hybrid vehicle according to the present invention can implement the hybrid mode of the input branch mode and the compound branch mode by using only two sets of single pinion planetary gear sets, two clutches and two brakes, and the fixed gear ratio mode in two stages. It can be configured to implement in, the compact configuration is advantageous to secure the space of the vehicle and contribute to cost reduction, it is possible to implement a continuous speed ratio, by switching the various modes according to the driving conditions of the vehicle, It can improve the fuel economy.

또한, 상기한 바와 같은 시스템의 성능 향상에 따라 동일조건 대비 모터제너레이터에서 요구되는 성능을 낮출 수 있어서, 차량의 원가 절감에 기여할 수 있게 된다.In addition, according to the performance improvement of the system as described above, it is possible to lower the performance required by the motor generator compared to the same conditions, thereby contributing to the cost reduction of the vehicle.

도 1을 참조하면, 본 발명 실시예는 입력축(IN)에 선택적으로 연결되는 회전요소와 출력요소(OUT)에 연결되는 회전요소를 구비한 제1유성기어세트(PG1)와; 상기 입력축(IN)과 상기 출력요소(OUT)에 각각 연결되는 회전요소들을 구비한 제2유성기어세트(PG2)와; 상기 입력축(IN)에 선택적으로 연결되는 상기 제1유성기어세트(PG1)의 회전요소의 회전을 구속할 수 있도록 구비된 제1브레이크(BK1)와; 상기 제1유성기어세트(PG1)와 제2유성기어세트(PG2)에 구동력을 제공할 수 있도록 연결되는 적어도 2개 이상의 동력원을 포함하여 구성된다.1, an embodiment of the present invention includes a first planetary gear set PG1 having a rotating element selectively connected to an input shaft IN and a rotating element connected to an output element OUT; A second planetary gear set PG2 having rotation elements connected to the input shaft IN and the output element OUT, respectively; A first brake BK1 provided to restrict rotation of the rotational element of the first planetary gear set PG1 selectively connected to the input shaft IN; And at least two power sources connected to the first planetary gear set PG1 and the second planetary gear set PG2 to provide driving force.

상기 제1유성기어세트(PG1)와 제2유성기어세트(PG2)는 동심축을 이루어 배치되고 각각 3개의 회전요소를 구비한 싱글피니언 유성기어세트로 이루어져 있다.The first planetary gear set PG1 and the second planetary gear set PG2 are formed in a single pinion planetary gear set, which are arranged coaxially and have three rotating elements, respectively.

상기 제1유성기어세트(PG1)에 연결되는 상기 동력원은 상기 제1유성기어세트(PG1)의 회전요소들 중 상기 입력축(IN)과 출력요소(OUT)에 연결되지 않은 회전요소에 연결되고, 상기 제2유성기어세트(PG2)에 연결되는 동력원은 상기 제2유성기 어세트(PG2)의 회전요소들 중 상기 입력축(IN)과 출력요소(OUT)에 연결되지 않은 회전요소에 연결된다.The power source connected to the first planetary gear set PG1 is connected to a rotation element not connected to the input shaft IN and the output element OUT of the rotation elements of the first planetary gear set PG1. The power source connected to the second planetary gear set PG2 is connected to a rotation element not connected to the input shaft IN and the output element OUT of the rotation elements of the second planetary gear set PG2.

본 실시예에서, 상기 동력원은 상기 입력축(IN)에 연결되는 엔진(ENG)과, 상기 제1유성기어세트(PG1)의 회전요소에 연결되는 제1모터제너레이터(MG1)와, 상기 제2유성기어세트(PG2)의 회전요소들에 연결되는 제2모터제너레이터(MG2)로 구성된다.In the present embodiment, the power source includes an engine ENG connected to the input shaft IN, a first motor generator MG1 connected to a rotating element of the first planetary gear set PG1, and the second planetary. It consists of a second motor generator MG2 connected to the rotating elements of the gear set PG2.

상기 출력요소(OUT)는 종감속기어 등에 연결되어 차량의 구동륜으로 연결됨으로써, 상기 엔진(ENG)과 제1모터제너레이터(MG1) 및 제2모터제너레이터(MG2)로부터 상기 제1유성기어세트(PG1) 및 제2유성기어세트(PG2)를 통해 변속된 동력을 구동륜으로 전달할 수 있도록 되어 있다.The output element OUT is connected to a longitudinal reduction gear or the like and is connected to a driving wheel of the vehicle, whereby the first planetary gear set PG1 is connected from the engine ENG, the first motor generator MG1, and the second motor generator MG2. ) And the second planetary gear set PG2 are configured to transmit the shifted power to the drive wheels.

또한, 상기 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2)에는 인버터를 통해 고전압배터리가 연결됨으로써, 회생제동시에는 전기를 고전압배터리로 충전할 수 있고, 구동시에는 상기 고전압배터리로부터의 전기를 이용하여 각각 구동력을 발생시킬 수 있도록 되어 있다.In addition, a high voltage battery is connected to the first motor generator MG1 and the second motor generator MG2 through an inverter, so that electricity can be charged with a high voltage battery at the time of regenerative braking, and from the high voltage battery at the time of driving. The driving force can be generated using electricity.

상기 제1유성기어세트(PG1)의 회전요소들 중 상기 입력축(IN)에 연결되는 회전요소는 제1클러치(CL1)에 의해 상기 엔진(ENG)에 단속적으로 연결되고, 상기 제2유성기어세트(PG2)의 회전요소들 중 상기 출력요소(OUT)에 연결되는 회전요소는 상기 출력요소(OUT)에 직결되며, 상기 제2모터제너레이터(MG2)는 상기 제2유성기어세트(PG2)의 회전요소들 중 상기 입력축(IN)과 상기 출력요소(OUT)에 연결되지 않은 회전요소에 직결된 구조이다.Among the rotating elements of the first planetary gear set PG1, a rotating element connected to the input shaft IN is intermittently connected to the engine ENG by a first clutch CL1, and the second planetary gear set is connected to the engine ENG. Among the rotating elements of PG2, a rotating element connected to the output element OUT is directly connected to the output element OUT, and the second motor generator MG2 rotates the second planetary gear set PG2. Among the elements, the structure is directly connected to the rotating element which is not connected to the input shaft IN and the output element OUT.

또한, 상기 제2모터제너레이터(MG2)가 직결된 상기 제2유성기어세트(PG2)의 회전요소와 상기 입력축(IN)에 연결되는 상기 제2유성기어세트(PG2)의 회전요소 사이를 단속적으로 연결할 수 있도록 제2클러치(CL2)를 구비하고, 상기 제2모터제너레이터(MG2)가 직결된 상기 제2유성기어세트(PG2)의 회전요소의 회전을 구속할 수 있도록 제2브레이크(BK2)를 구비하고 있다.In addition, between the rotational element of the second planetary gear set PG2 to which the second motor generator MG2 is directly connected and the rotational element of the second planetary gear set PG2 connected to the input shaft IN are intermittently intermittent. The second brake CL2 is provided to connect the second brake BK2 to restrain the rotation of the rotating element of the second planetary gear set PG2 to which the second motor generator MG2 is directly connected. Equipped.

즉, 상기 제1유성기어세트(PG1)는 제1선기어(S1)가 상기 제1모터제너레이터(MG1)에 연결되고, 제1캐리어(C1)가 상기 입력축(IN)을 통해 단속적으로 엔진(ENG)에 연결됨과 아울러 상기 제1브레이크(BK1)에 연결되며, 제1링기어(R1)가 상기 출력요소(OUT)에 연결되고; 상기 제2유성기어세트(PG2)는 제2선기어(S2)가 상기 입력축(IN)에 연결됨과 동시에 상기 제2클러치(CL2)를 통해 제2링기어(R2)에 연결되고, 제2캐리어(C2)가 상기 출력요소(OUT)에 연결되며, 제2링기어(R2)가 상기 제2모터제너레이터(MG2) 및 상기 제2브레이크(BK2)에 연결되는 구조인 것이다.That is, in the first planetary gear set PG1, a first sun gear S1 is connected to the first motor generator MG1, and a first carrier C1 is intermittently interposed through the input shaft IN. ) Is connected to the first brake (BK1), the first ring gear (R1) is connected to the output element (OUT); The second planetary gear set PG2 is connected to the second ring gear R2 through the second clutch CL2 at the same time as the second sun gear S2 is connected to the input shaft IN. C2) is connected to the output element OUT, and the second ring gear R2 is connected to the second motor generator MG2 and the second brake BK2.

한편, 도 3에는 본 발명의 다른 실시예로서, 다른 것은 본 실시예와 동일하지만, 상기 제2클러치(CL2)와 제2브레이크(BK2)가 구비되지 않은 점만 다른 실시예가 개시되어 있다.On the other hand, Figure 3 is another embodiment of the present invention, the other embodiment is the same as the present embodiment, except for the second clutch (CL2) and the second brake (BK2) is not provided with the embodiment is disclosed.

도 1에 도시된 본 실시예는 도 2에 도시된 바와 같은 작동모드의 구현이 가능하고, 상기 도 3에 도시된 실시예는 도 2의 작동모드들 중 상기 제2클러치(CL2)와 제2브레이크(BK2)가 개입되는 고정기어비1단과 고정기어비2단을 제외한 입력분기모드와 복합분기모드의 구현이 가능하다.The present embodiment shown in FIG. 1 may implement an operation mode as shown in FIG. 2, and the embodiment shown in FIG. 3 may include the second clutch CL2 and the second clutch of the operation modes of FIG. 2. It is possible to implement the input branch mode and the compound branch mode except for the fixed gear ratio 1 stage and the fixed gear ratio 2 stage where the brake (BK2) is engaged.

먼저, 입력분기모드를 살펴보면, 제1브레이크(BK1)만을 체결하고 나머지 요소들인 제2브레이크(BK2)와 제1클러치(CL1) 및 제2클러치(CL2)는 개방되어 구현된다.First, referring to the input branch mode, only the first brake BK1 is fastened and the remaining elements, the second brake BK2, the first clutch CL1, and the second clutch CL2 are opened.

즉, 상기 제1브레이크(BK1)가 결합되면, 상기 제1모터제너레이터(MG1)로부터의 동력은 상기 제1유성기어세트(PG1)를 통해 단순 감속되어 상기 제1링기어(R1)로 전달되므로, 상기 제1모터제너레이터(MG1)가 결국 상기 출력요소(OUT)에 바로 연결된 것과 마찬가지의 구조가 되어 입력분기모드를 구현하게 되는 것이다.That is, when the first brake BK1 is coupled, the power from the first motor generator MG1 is simply decelerated through the first planetary gear set PG1 and is transmitted to the first ring gear R1. The first motor generator MG1 has a structure similar to that directly connected to the output element OUT, thereby implementing the input branch mode.

이 입력분기모드는 고변속비, 저속에서 사용할 수 있는 동력 분기 구조이다.This input branch mode is a power branch structure that can be used at high speed ratio and low speed.

복합분기모드는 상기 제1브레이크(BK1)는 해제하고, 상기 제1클러치(CL1)만 체결하여 구현된다. 상기 제1클러치(CL1)만 체결된 상태를 단순화 하면, 도 5와 같은 상태가 되는데, 이때 상기 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2)는 모두 엔진(ENG)이 연결된 입력축(IN)이나 출력요소(OUT)에 직접 연결되지 않은 구조이므로 복합분기모드를 형성함을 알 수 있다.The compound branch mode is implemented by releasing the first brake BK1 and engaging only the first clutch CL1. When the state in which only the first clutch CL1 is fastened is simplified, the state as shown in FIG. 5 is obtained. In this case, the first motor generator MG1 and the second motor generator MG2 are both input shafts to which an engine ENG is connected. It can be seen that it forms a complex branch mode because it is not directly connected to IN) or the output element (OUT).

상기와 같은 복합분기모드는 고변속비, 고속에서 사용할 수 있는 동력 분기 구조이다.The complex branch mode as described above is a power branch structure that can be used at high speed ratios and high speeds.

고정기어비 1단모드는 상기 제1브레이크(BK1)와 제2브레이크(BK2)만을 체결하고 상기 제1클러치(CL1)와 제2클러치(CL2)는 해제된 상태로서, 상기 제1유성기어세트(PG1)와 제2유성기어세트(PG2)는 상기 출력요소(OUT)가 연결된 제1링기어(R1) 및 제2캐리어(C2)가 엔진(ENG)이 연결된 제2선기어(S2)와 항상 일정한 변속비를 가지고 회전하게 구속되므로, 상기 제2선기어(S2)로 입력되는 엔진(ENG)의 동력이 상기 제2유성기어세트(PG2)의 감속비에 따라 감속되어 상기 제2캐리어(C2)를 통해 출력요소(OUT)로 인출되는 고정기어비 상태를 구현하게 되며, 변속비는 1보다 큰 감속상태가 구현된다.In the fixed gear ratio first stage mode, only the first brake BK1 and the second brake BK2 are engaged, and the first clutch CL1 and the second clutch CL2 are released, and the first planetary gear set PG1) and the second planetary gear set PG2 are always constant with the first ring gear R1 and the second carrier C2 to which the output element OUT is connected to the second sun gear S2 to which the engine ENG is connected. Since it is constrained to rotate with a speed ratio, the power of the engine ENG input to the second sun gear S2 is decelerated according to the reduction ratio of the second planetary gear set PG2 and output through the second carrier C2. The fixed gear ratio state is drawn out to the element OUT, and the speed ratio is implemented as a deceleration state greater than one.

고정기어비 2단모드는 상기 제1브레이크(BK1)와 제2브레이크(BK2)는 해제하고, 상기 제1클러치(CL1)와 제2클러치(CL2)만 체결한 상태로서, 상기 제2클러치(CL2)가 체결되면, 상기 제2유성기어세트(PG2)는 일체로 잠기게 되고, 상기 제1클러치(CL1)가 체결되면, 상기 제1유성기어세트(PG1)도 상기 제2 유성기어세트(PG2)와 함께 잠기게 되어, 결국 상기 제1유성기어세트(PG1) 및 제2유성기어세트(PG2) 전체가 일체로 회전되므로, 상기 엔진(ENG)으로부터의 입력은 그대로 변속비 1:1로 상기 출력요소(OUT)로 인출되는 고정 기어비 상태가 된다.In the fixed gear ratio two-stage mode, the first brake BK1 and the second brake BK2 are released, and only the first clutch CL1 and the second clutch CL2 are fastened, and the second clutch CL2 is closed. ) Is engaged, the second planetary gear set PG2 is integrally locked, and when the first clutch CL1 is engaged, the first planetary gear set PG1 is also the second planetary gear set PG2. ) And the first planetary gear set PG1 and the second planetary gear set PG2 are rotated integrally, so that the input from the engine ENG is output at a speed ratio of 1: 1 as it is. A fixed gear ratio is drawn out to the element OUT.

본 발명에 따른 하이브리드 차량의 파워트레인은 상기한 바와 같이, 싱글피니언 유성기어세트 2조와 클러치 2개 및 브레이크 2개 만을 이용하여 입력분기모드와 복합분기모드의 하이브리드모드를 구현할 수 있고, 더불어 상기 고정기어비모드를 2단에 걸쳐 구현할 수 있게 구성됨으로써, 컴팩트한 구성으로 차량의 공간확보에 유리하고 원가 절감에 기여할 수 있게 되며, 연속적인 변속비 구현이 가능하고, 상기 다양한 모드를 차량의 주행조건에 따라 적절히 전환함으로써, 차량의 연비를 개선할 수 있다.As described above, the powertrain of the hybrid vehicle according to the present invention can implement the hybrid mode of the input branch mode and the composite branch mode by using only two sets of single-pinion planetary gear sets, two clutches and two brakes. Since the gear ratio mode can be implemented in two stages, the compact configuration is advantageous to secure the space of the vehicle and contribute to cost reduction, and it is possible to realize the continuous transmission ratio, and the various modes can be changed according to the driving conditions of the vehicle. By appropriately switching, the fuel economy of the vehicle can be improved.

또한, 상기한 바와 같은 시스템의 성능 향상에 따라 동일조건 대비 모터제너레이터에서 요구되는 성능을 낮출 수 있어서, 차량의 원가 절감에 기여할 수 있게 된다.In addition, according to the performance improvement of the system as described above, it is possible to lower the performance required by the motor generator compared to the same conditions, thereby contributing to the cost reduction of the vehicle.

도 1은 본 발명에 따른 하이브리드 차량의 파워트레인의 구성도,1 is a configuration diagram of a power train of a hybrid vehicle according to the present invention;

도 2는 도 1의 파워트레인의 각 운전모드의 작동모드표,2 is an operation mode table of each operation mode of the power train of FIG.

도 3은 본 발명에 따른 하이브리드 차량의 파워트레인의 다른 실시예를 도시한 도면,3 illustrates another embodiment of a powertrain of a hybrid vehicle according to the present invention;

도 4는 도 1의 파워트레인을 간략화 한 레버다이어그램,4 is a simplified lever diagram of the powertrain of FIG.

도 5는 도 1의 파워트레인의 복합분기모드 상태를 간략화한 도면이다.FIG. 5 is a simplified diagram illustrating a state of a composite branch mode of the power train of FIG. 1.

<도면의 주요 부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>

IN; 입력축 OUT; 출력요소IN; Input shaft OUT; Output element

PG1; 제1유성기어세트 PG2; 제2유성기어세트PG1; First planetary gear set PG2; 2nd planetary gear set

BK1; 제1브레이크 ENG; 엔진BK1; First brake ENG; engine

MG1; 제1모터제너레이터 MG2; 제2모터제너레이터MG1; First motor generator MG2; 2nd motor generator

CL1; 제1클러치 CL2; 제2클러치CL1; First clutch CL2; Second clutch

BK2; 제2브레이크 S1; 제1선기어BK2; Second brake S1; 1st Sun Gear

C1; 제1캐리어 R1; 제1링기어C1; First carrier R1; 1st ring gear

S2; 제2선기어 R2; 제2링기어S2; Second sun gear R2; 2nd ring gear

C2; 제2캐리어 C2; 2nd carrier

Claims (11)

입력축에 선택적으로 연결되는 회전요소와 출력요소에 연결되는 회전요소를 구비한 제1유성기어세트와;A first planetary gear set having a rotating element selectively connected to the input shaft and a rotating element connected to the output element; 상기 입력축과 상기 출력요소에 각각 연결되는 회전요소들을 구비한 제2유성기어세트와;A second planetary gear set having rotation elements connected to the input shaft and the output element, respectively; 상기 입력축에 선택적으로 연결되는 상기 제1유성기어세트의 회전요소의 회전을 구속할 수 있도록 구비된 제1브레이크와;A first brake provided to restrain rotation of the rotating element of the first planetary gear set selectively connected to the input shaft; 상기 제1유성기어세트와 제2유성기어세트에 구동력을 제공할 수 있도록 연결되는 적어도 2개 이상의 동력원;At least two power sources connected to provide a driving force to the first planetary gear set and the second planetary gear set; 을 포함하여 구성된 것을 특징으로 하는 하이브리드 차량의 파워트레인.Power train of a hybrid vehicle, characterized in that configured to include. 청구항 1에 있어서, The method according to claim 1, 상기 제1유성기어세트에 연결되는 상기 동력원은 상기 제1유성기어세트의 회전요소들 중 상기 입력축과 출력요소에 연결되지 않은 회전요소에 연결되고;The power source connected to the first planetary gearset is connected to a rotational element not connected to the input shaft and the output element of the rotational elements of the first planetary gearset; 상기 제2유성기어세트에 연결되는 동력원은 상기 제2유성기어세트의 회전요소들 중 상기 입력축과 출력요소에 연결되지 않은 회전요소에 연결되는 것The power source connected to the second planetary gear set is connected to a rotation element not connected to the input shaft and the output element among the rotation elements of the second planetary gear set. 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 2에 있어서, 상기 동력원은The method of claim 2, wherein the power source is 상기 입력축에 연결되는 엔진과;An engine connected to the input shaft; 상기 제1유성기어세트의 회전요소에 연결되는 제1모터제너레이터와;A first motor generator connected to the rotating element of the first planetary gear set; 상기 제2유성기어세트의 회전요소들에 연결되는 제2모터제너레이터;A second motor generator connected to the rotating elements of the second planetary gear set; 로 구성된 것을 특징으로 하는 하이브리드 차량의 파워트레인.Power train of a hybrid vehicle, characterized in that consisting of. 청구항 3에 있어서,The method according to claim 3, 상기 제1유성기어세트의 회전요소들 중 상기 입력축에 연결되는 회전요소는 제1클러치에 의해 상기 엔진에 단속적으로 연결되고;One of the rotating elements of the first planetary gear set connected to the input shaft is intermittently connected to the engine by a first clutch; 상기 제2유성기어세트의 회전요소들 중 상기 출력요소에 연결되는 회전요소는 상기 출력요소에 직결되며;A rotating element connected to the output element of the rotating elements of the second planetary gear set is directly connected to the output element; 상기 제2모터제너레이터는 상기 제2유성기어세트의 회전요소들 중 상기 입력축과 상기 출력요소에 연결되지 않은 회전요소에 직결된 것The second motor generator is directly connected to a rotating element of the second planetary gear set that is not connected to the input shaft and the output element. 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 4에 있어서,The method according to claim 4, 상기 제1유성기어세트는 제1선기어가 상기 제1모터제너레이터에 연결되고, 제1캐리어가 상기 입력축을 통해 단속적으로 엔진에 연결됨과 아울러 상기 제1브레이크에 연결되며, 제1링기어가 상기 출력요소에 연결되고;In the first planetary gear set, a first sun gear is connected to the first motor generator, a first carrier is intermittently connected to the engine through the input shaft, and is connected to the first brake, and a first ring gear is connected to the output. Connected to the element; 상기 제2유성기어세트는 제2선기어가 상기 입력축에 연결되고, 제2캐리어가 상기 출력요소에 연결되며, 제2링기어가 상기 제2모터제너레이터에 연결되는 것The second planetary gear set includes a second sun gear connected to the input shaft, a second carrier connected to the output element, and a second ring gear connected to the second motor generator. 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 4에 있어서,The method according to claim 4, 상기 제2모터제너레이터가 직결된 상기 제2유성기어세트의 회전요소와 상기 입력축에 연결되는 상기 제2유성기어세트의 회전요소 사이를 단속적으로 연결할 수 있도록 제2클러치를 더 구비하고;A second clutch for intermittently connecting between the rotating element of the second planetary gear set directly connected to the second motor generator and the rotating element of the second planetary gear set connected to the input shaft; 상기 제2모터제너레이터가 직결된 상기 제2유성기어세트의 회전요소의 회전을 구속할 수 있도록 제2브레이크를 더 구비한 것And further provided with a second brake to restrain the rotation of the rotating element of the second planetary gear set directly connected to the second motor generator. 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 6에 있어서,The method according to claim 6, 상기 제1유성기어세트는 제1선기어가 상기 제1모터제너레이터에 연결되고, 제1캐리어가 상기 입력축을 통해 단속적으로 엔진에 연결됨과 아울러 상기 제1브레이크에 연결되며, 제1링기어가 상기 출력요소에 연결되고;In the first planetary gear set, a first sun gear is connected to the first motor generator, a first carrier is intermittently connected to the engine through the input shaft, and is connected to the first brake, and a first ring gear is connected to the output. Connected to the element; 상기 제2유성기어세트는 제2선기어가 상기 입력축에 연결됨과 동시에 상기 제2클러치를 통해 제2링기어에 연결되고, 제2캐리어가 상기 출력요소에 연결되며, 제2링기어가 상기 제2모터제너레이터 및 상기 제2브레이크에 연결되는 것The second planetary gear set includes a second sun gear connected to the input shaft and a second ring gear through the second clutch, a second carrier connected to the output element, and a second ring gear connected to the second gear. Connected to a motor generator and said second brake 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 엔진으로부터 동력을 입력 받는 입력축과;An input shaft for receiving power from the engine; 동력을 인출하는 출력요소와;An output element for drawing power; 동축상으로 배치된 제1유성기어세트 및 제2유성기어세트와;A first planetary gear set and a second planetary gear set coaxially disposed; 상기 입력축과 연결되는 상기 제2유성기어세트의 회전요소와 상기 제1유성기어세트의 한 회전요소를 선택적으로 연결하는 제1클러치와;A first clutch for selectively connecting a rotating element of the second planetary gear set and one rotating element of the first planetary gear set connected to the input shaft; 상기 제2유성기어세트의 두 회전요소 사이를 선택적으로 연결하는 제2클러치;A second clutch for selectively connecting between two rotating elements of the second planetary gear set; 를 포함하여 구성된 것을 특징으로 하는 하이브리드 차량의 파워트레인.Power train of a hybrid vehicle, characterized in that configured to include. 청구항 8에 있어서,The method according to claim 8, 상기 입력축은 상기 제2유성기어세트의 제2선기어에 직결되고 상기 제1클러치를 통해 제1유성기어세트의 제1캐리어에 연결되고;The input shaft is directly connected to the second sun gear of the second planetary gear set and connected to the first carrier of the first planetary gear set through the first clutch; 상기 출력요소는 상기 제1유성기어세트의 제1링기어 및 제2유성기어세트의 제2캐리어에 연결되며;The output element is connected to a first ring gear of the first planetary gear set and a second carrier of the second planetary gear set; 제1모터제너레이터가 상기 제1유성기어세트의 제1선기어에 연결되고;A first motor generator is connected to the first sun gear of the first planetary gear set; 제2모터제너레이터가 상기 제2유성기어세트의 제2링기어에 연결되는 것A second motor generator connected to the second ring gear of the second planetary gear set 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 9에 있어서,The method according to claim 9, 상기 제1클러치는 상기 제1유성기어세트의 제1캐리어와 상기 제2유성기어세 트의 제2선기어 사이에 설치되고;The first clutch is provided between the first carrier of the first planetary gear set and the second sun gear of the second planetary gear set; 상기 제2클러치는 상기 제2유성기어세트의 제2선기어와 제2링기어 사이에 설치된 것The second clutch is provided between the second sun gear and the second ring gear of the second planetary gear set; 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that. 청구항 10에 있어서,The method according to claim 10, 상기 제1유성기어세트의 제1캐리어의 회전을 구속하는 제1브레이크와;A first brake for restraining rotation of the first carrier of the first planetary gear set; 상기 제2유성기어세트의 제2링기어의 회전을 구속하는 제2브레이크가 더 포함되어 구성된 것And further comprising a second brake for restraining rotation of the second ring gear of the second planetary gear set. 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that.
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