KR101509773B1 - Power Train for Hybrid Vehicle - Google Patents
Power Train for Hybrid Vehicle Download PDFInfo
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- KR101509773B1 KR101509773B1 KR1020090046740A KR20090046740A KR101509773B1 KR 101509773 B1 KR101509773 B1 KR 101509773B1 KR 1020090046740 A KR1020090046740 A KR 1020090046740A KR 20090046740 A KR20090046740 A KR 20090046740A KR 101509773 B1 KR101509773 B1 KR 101509773B1
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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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
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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
- B60K6/22—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
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
본 발명은 일반 변속기의 변속단처럼 고정된 기어비로 운전되는 방식이 결합된 다중모드 운전이 가능하도록 함과 아울러 고효율 운전이 가능하여 차량의 연비를 향상시킬 수 있도록 한 하이브리드 차량용 동력전달장치를 제공한다.The present invention provides a power transmission device for a hybrid vehicle capable of performing multi-mode operation combined with a gear ratio operating at a fixed gear ratio like a gear stage of a general transmission and capable of high-efficiency operation to improve fuel efficiency of the vehicle .
유성기어세트, 변속, 연비, 전기차모드, 하이브리드모드 Planetary Gear Set, Transmission, Fuel Economy, Electric Vehicle Mode, Hybrid Mode
Description
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
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 is configured to allow the vehicle to be driven by power from an engine having a relatively high torque characteristic at a high speed and a power from a motor generator having a relatively low speed torque characteristic at a low speed Based on the concept that the fuel economy of the vehicle is improved.
또한, 하이브리드 차량은 모터제너레이터만으로 구동되는 동안에는 엔진에 의한 배기가스가 발생할 여지가 없어서, 연비 개선과 배기가스 저감의 장점을 가진 친환경적인 자동차 기술로 인정받고 있다.Further, since the hybrid vehicle is driven only by the motor generator, there is no possibility of exhaust gas generated by the engine, and thus it is recognized as an eco-friendly automobile technology having the advantages of improving fuel economy and reducing exhaust gas.
상기와 같은 하이브리드 차량의 동력전달장치에는 동력분기식 장치가 있는데, 상기 동력분기식 장치는 다시 단일모드방식과 2모드방식이 있으며, 상기 단일모드방식은 변속 제어를 위한 클러치나 브레이크 등과 같은 작동요소가 필요 없지만, 고속 주행시 효율이 저하되어 연비가 낮고 대형차량에 적용하기 위해서는 부가적인 토크 증배장치가 필요한 단점이 있다.The power transmission device of the hybrid vehicle includes a power branching device, which is again a single mode mode or a two-mode mode. The single mode mode includes a clutch However, there is a disadvantage that an additional torque multiplication device is required to be applied to a large-sized vehicle because the efficiency is lowered at a high speed and the fuel consumption is low.
한편, 상기 2모드방식은 고속 주행시의 효율확보는 물론, 그 구성에 따라 자체적으로 토크의 증배가 가능하도록 설계할 수 있어서 중대형 차량에도 적용이 가능한 이점이 있다.Meanwhile, the two-mode system can be designed to be capable of multiplying torque according to its construction as well as securing efficiency at high-speed traveling, which is advantageous in that it can be applied to a middle- or large-sized vehicle.
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, 중/고속 주행시의 연비를 크게 향상시킬 수 있도록 한 하이브리드 차량의 파워트레인을 제공함에 그 목적이 있다.The present invention provides a plurality of fixed gear ratios such as a speed change stage of a general transmission as well as an implementation of a multi-mode by a power split mode, and enables multi-mode operation by these various driving modes according to the running state of the vehicle, And to provide a powertrain of a hybrid vehicle capable of greatly improving the fuel economy at the time of medium / high speed driving.
상기한 바와 같은 목적을 달성하기 위하여 안출된 본 발명 하이브리드 차량의 파워트레인은In order to achieve the above object, the power train of the hybrid vehicle of the present invention,
제1유성기어세트와;A first planetary gear set;
두 회전요소가 상기 제1유성기어세트의 모든 회전요소들에 적어도 단속적으로 연결된 제2유성기어세트와;A second planetary gear set in which two rotary elements are intermittently connected at least intermittently to all the rotary elements of the first planetary gear set;
상기 제2유성기어세트의 한 회전요소의 회전을 구속할 수 있도록 구비된 제1브레이크를 포함하여 구성되고,And a first brake provided to restrain rotation of one rotary element of the second planetary gear set,
상기 제1유성기어세트와 제2유성기어세트의 회전요소들에 각각 연결되는 적어도 2개 이상의 동력원과 출력요소;At least two power sources and output elements respectively connected to the rotation elements of the first planetary gear set and the second planetary gear set;
를 포함하여 구성된 것을 특징으로 한다.And a control unit.
상기 동력원은 The power source
상기 제1유성기어세트의 한 회전요소에 연결되는 엔진과;An engine coupled to one rotary element of the first planetary gear set;
상기 제1유성기어세트의 다른 한 회전요소에 연결되는 제1모터제너레이터와;A first motor generator coupled to another rotary element of the first planetary gear set;
상기 제2유성기어세트의 한 회전요소에 연결되는 제2모터제너레이터로 구성되고,And a second motor generator connected to one rotary element of the second planetary gear set,
상기 출력요소는 상기 제2유성기어세트의 회전요소에 연결되는 구조로 할 수 있다.And the output element may be connected to the rotation element of the second planetary gear set.
상기 제2유성기어세트의 한 회전요소는 상기 제1유성기어세트의 서로 인접한 두 회전요소에 제1클러치와 제2클러치에 의해 단속적으로 연결된 구조로 할 수 있다.One rotary element of the second planetary gear set may be intermittently connected to the two adjacent rotary elements of the first planetary gear set by the first clutch and the second clutch.
상기 제1유성기어세트의 회전요소들 중 상기 제1클러치와 제2클러치에 연결되지 않은 나머지 한 회전요소는 상기 제2유성기어세트의 한 회전요소에 직결된 구조로 할 수 있다.And the other one of the rotation elements of the first planetary gear set not connected to the first clutch and the second clutch may be directly connected to one rotation element of the second planetary gear set.
상기 출력요소는 상기 제1유성기어세트의 회전요소와 직결된 상기 제2유성기어세트의 회전요소에 연결되는 구조로 할 수 있다.And the output element may be connected to a rotation element of the second planetary gear set that is directly connected to the rotation element of the first planetary gear set.
상기 제1클러치는 상기 제1유성기어세트의 제1선기어와 상기 제2유성기어세트의 제2선기어 사이를 단속 가능하게 설치되고;The first clutch is interposed between the first sun gear of the first planetary gear set and the second sun gear of the second planetary gear set so as to intermittently;
상기 제2클러치는 상기 제1유성기어세트의 제1캐리어와 상기 제2유성기어세트의 제2선기어 사이를 단속 가능하게 설치되며;The second clutch is interposed between the first carrier of the first planetary gear set and the second sun gear of the second planetary gear set so as to be interlocked;
상기 제1유성기어세트의 제1링기어는 상기 제2유성기어세트의 제2캐리어에 직결된 구조로 할 수 있다.The first ring gear of the first planetary gear set may have a structure directly connected to the second carrier of the second planetary gear set.
상기 제1브레이크는 상기 제2유성기어세트의 제2선기어의 회전을 구속할 수 있도록 설치되고;The first brake is provided to restrain rotation of the second sun gear of the second planetary gear set;
상기 엔진은 상기 제1유성기어세트의 제1캐리어에 연결되며;The engine being connected to a first carrier of the first planetary gear set;
상기 제1모터제너레이터는 상기 제1유성기어세트의 제1선기어에 연결되고;The first motor generator is connected to the first sun gear of the first planetary gear set;
상기 제2모터제너레이터는 상기 제2유성기어세트의 제2링기어에 연결된 구 조로 할 수 있다.And the second motor generator may be a structure connected to the second ring gear of the second planetary gear set.
상기 동력원과 제1유성기어세트 및 제2유성기어세트는 각 회전축이 모두 동심축을 이루어 배치되는 구성으로 할 수 있다.The power source, the first planetary gear set, and the second planetary gear set may be configured such that the respective rotation shafts are disposed concentrically.
또한, 본 발명에 따른 하이브리드 차량의 파워트레인은Further, the powertrain of the hybrid vehicle according to the present invention
엔진이 연결되는 제1유성기어세트와;A first planetary gear set to which an engine is connected;
상기 제1유성기어세트의 엔진이 연결된 회전요소와 단속 가능하게 연결되는 회전요소를 구비한 제2유성기어세트와;A second planetary gear set having a rotation element interlockably connected to a rotation element to which the engine of the first planetary gear set is connected;
상기 엔진에 단속 가능하게 연결되는 제2유성기어세트의 회전요소 이외의 다른 한 회전요소에 연결된 출력요소와;An output element coupled to a second rotary element other than the rotary element of the second planetary gear set interlockably connected to the engine;
상기 엔진에 단속 가능하게 연결되는 제2유성기어세트의 회전요소의 회전을 구속할 수 있도록 설치된 제1브레이크와; A first brake installed to restrain rotation of a rotary element of a second planetary gear set intermittently connected to the engine;
상기 제1유성기어세트에 연결되는 제1모터제너레이터와;A first motor generator coupled to the first planetary gear set;
상기 제2유성기어세트에 연결되는 제2모터제너레이터;A second motor generator coupled to the second planetary gear set;
를 포함하여 구성된 것을 특징으로 한다.And a control unit.
상기 엔진은 상기 제1유성기어세트의 제1캐리어에 연결되고;The engine being connected to a first carrier of the first planetary gear set;
상기 제1유성기어세트의 제1캐리어는 상기 제2유성기어세트의 제2선기어에 제2클러치로 연결되며;A first carrier of the first planetary gear set is connected to a second sun gear of the second planetary gear set by a second clutch;
상기 제1유성기어세트의 제1선기어는 상기 제2유성기어세트의 제2선기어에 제1클러치로 연결되고;A first sun gear of the first planetary gear set is connected to a second sun gear of the second planetary gear set by a first clutch;
상기 제1유성기어세트의 제1링기어는 상기 제2유성기어세트의 제2캐리어에 직결된 구조로 할 수 있다.The first ring gear of the first planetary gear set may have a structure directly connected to the second carrier of the second planetary gear set.
상기 제1모터제너레이터는 상기 제1유성기어세트의 제1선기어에 연결되고;The first motor generator is connected to the first sun gear of the first planetary gear set;
상기 제2모터제너레이터는 상기 제2유성기어세트의 제2링기어에 연결되며;The second motor generator is connected to the second ring gear of the second planetary gear set;
상기 출력요소는 상기 제2유성기어세트의 제2캐리어에 연결되고;The output element being connected to a second carrier of the second planetary gear set;
상기 제1브레이크는 상기 제2유성기어세트의 제2선기어에 연결된 구조로 할 수 있다.And the first brake may be connected to the second sun gear of the second planetary gear set.
본 발명은 일반 변속기의 변속단처럼 고정된 기어비로 운전되는 방식과 동력분기방식이 결합된 다중모드 운전이 가능하도록 함과 아울러 고효율 운전이 가능하여 중/고속 주행시 차량의 연비를 크게 향상시킬 수 있도록 한다.The present invention is capable of multi-mode operation combined with a fixed gear ratio like a speed change gear of a general transmission and a power branching system, and also enables a high efficiency operation so that fuel efficiency of a vehicle can be greatly improved do.
도 1을 참조하면, 본 발명 실시예는 제1유성기어세트(PG1)와; 두 회전요소가 상기 제1유성기어세트(PG1)의 모든 회전요소들에 적어도 단속적으로 연결된 제2유성기어세트(PG2)와; 상기 제2유성기어세트(PG2)의 한 회전요소의 회전을 구속할 수 있도록 구비된 제1브레이크(B1)를 포함하여 구성되고, 상기 제1유성기어세트(PG1)와 제2유성기어세트(PG2)의 회전요소들에 각각 연결되는 적어도 2개 이상의 동력원과 출력요소(OUT)를 포함하여 구성된다.Referring to FIG. 1, an embodiment of the present invention includes a first planetary gear set PG1; A second planetary gear set (PG2) having two rotary elements at least intermittently connected to all the rotational elements of the first planetary gear set (PG1); And a first brake B1 for restricting rotation of one rotary element of the second planetary gear set PG2, wherein the first planetary gear set PG1 and the second planetary gear set PG2 And at least two power sources and an output element (OUT) connected to the rotation elements of the first and second power sources PG1 and PG2.
여기서, 상기 적어도 단속적으로 연결된다는 의미는 직접 연결되거나 클러치 등을 통해 연결될 수 있는 상태로 서로 연결된 구조 전체를 포괄하여 의미하는 것이다.Here, the term " at least intermittently connected " means the entire structure connected to each other in a state that they can be connected directly or through a clutch.
상기 동력원은 상기 제1유성기어세트(PG1)의 한 회전요소에 연결되는 엔진(Engine)과, 상기 제1유성기어세트(PG1)의 다른 한 회전요소에 연결되는 제1모터제너레이터(MG1)와, 상기 제2유성기어세트(PG2)의 한 회전요소에 연결되는 제2모터제너레이터(MG2)로 구성되고, 상기 출력요소(OUT)는 상기 제2유성기어세트(PG2)의 회전요소에 연결된다.
즉, 도 1에 도시된 바와 같이, 상기 제1유성기어세트(PG1)는 제1선기어(S1), 제1링기어(R1) 및 제1캐리어(C1)를 포함하고, 상기 제2유성기어세트(PG2)는 제2선기어(S2), 제2링기어(R2) 및 제2캐리어(C2)를 포함하며, 상기 동력원은 상기 제1유성기어세트(PG1)의 제1캐리어(C1)에 연결되는 엔진(Engine)과, 상기 제1유성기어세트(PG1)의 제1선기어(S1)에 연결되는 제1모터제너레이터(MG1)와, 상기 제2유성기어세트(PG2)의 제2링기어(R2)에 연결되는 제2모터제너레이터(MG2)로 구성되고, 상기 출력요소(OUT)는 상기 제2유성기어세트(PG2)의 제2캐리어(C2)에 연결된다.The power source includes an engine connected to one rotary element of the first planetary gear set PG1, a first motor generator MG1 connected to another rotary element of the first planetary gear set PG1, And a second motor generator MG2 connected to one rotary element of the second planetary gear set PG2 and the output element OUT is connected to the rotary element of the second planetary gear set PG2 .
1, the first planetary gear set PG1 includes a first sun gear S1, a first ring gear R1, and a first carrier C1, The set PG2 includes a second sun gear S2, a second ring gear R2 and a second carrier C2 which are connected to the first carrier C1 of the first planetary gearset PG1 A first motor generator MG1 connected to the first sun gear S1 of the first planetary gear set PG1 and a second motor generator MG2 connected to the second ring gear of the second planetary gear set PG2, And the output element OUT is connected to the second carrier C2 of the second planetary gear set PG2.
상기 제2유성기어세트(PG2)의 한 회전요소는 상기 제1유성기어세트(PG1)의 서로 인접한 두 회전요소에 제1클러치(CL1)와 제2클러치(CL2)에 의해 단속적으로 연결되고, 상기 제1유성기어세트(PG1)의 회전요소들 중 상기 제1클러치(CL1)와 제2클러치(CL2)에 연결되지 않은 나머지 한 회전요소는 상기 제2유성기어세트(PG2)의 한 회전요소에 직결되며, 상기 출력요소(OUT)는 상기 제1유성기어세트(PG1)의 회전요소와 직결된 상기 제2유성기어세트(PG2)의 회전요소에 연결된다.
즉, 도 1에 도시된 바와 같이, 상기 제2유성기어세트(PG2)의 제2선기어(S2)는 상기 제1유성기어세트(PG1)의 서로 인접한 제1캐리어(C1), 제1선기어(S1)에 제1클러치(CL1)와 제2클러치(CL2)에 의해 단속적으로 연결되고, 상기 제1유성기어세트(PG1)의 제1링기어(R1)는 상기 제2유성기어세트(PG2)의 제2캐리어(C2)에 직결되며, 상기 출력요소(OUT)는 상기 제1유성기어세트(PG1)의 제1링기어(R1)에 직결된 상기 제2유성기어세트(PG2)의 제2캐리어(C2)에 연결된다.One rotary element of the second planetary gear set PG2 is intermittently connected to the two adjacent rotary elements of the first planetary gear set PG1 by the first clutch CL1 and the second clutch CL2, The other one of the rotation elements of the first planetary gear set PG1 that is not connected to the first clutch CL1 and the second clutch CL2 is a rotation element of the second planetary gear set PG2, And the output element OUT is connected to the rotation element of the second planetary gearset PG2 which is directly connected to the rotation element of the first planetary gear set PG1.
1, the second sun gear S2 of the second planetary gear set PG2 is meshed with the first carrier C1, the first sun gear S2, the first sun gear S2, S1 and the first ring gear R1 of the first planetary gear set PG1 is intermittently connected to the second planetary gear set PG2 by a first clutch CL1 and a second clutch CL2, Of the second planetary gear set (PG2) directly connected to the first ring gear (R1) of the first planetary gearset (PG1), and the output element (OUT) And is connected to the carrier C2.
상기 제1클러치(CL1)는 상기 제1유성기어세트(PG1)의 제1선기어(S1)와 상기 제2유성기어세트(PG2)의 제2선기어(S2) 사이를 단속 가능하게 설치되고, 상기 제2클러치(CL2)는 상기 제1유성기어세트(PG1)의 제1캐리어(C1)와 상기 제2유성기어세트(PG2)의 제2선기어(S2) 사이를 단속 가능하게 설치되며, 상기 제1유성기어세트(PG1)의 제1링기어(R1)는 상기 제2유성기어세트(PG2)의 제2캐리어(C2)에 직결된다.The first clutch CL1 is interposed between the first sun gear S1 of the first planetary gear set PG1 and the second sun gear S2 of the second planetary gear set PG2, The second clutch CL2 is interposed between the first carrier C1 of the first planetary gear set PG1 and the second sun gear S2 of the second planetary gearset PG2 so as to be interlocked, The first ring gear R1 of the first planetary gear set PG1 is directly connected to the second carrier C2 of the second planetary gear set PG2.
상기 제1브레이크(B1)는 상기 제2유성기어세트(PG2)의 제2선기어(S2)의 회전을 구속할 수 있도록 설치되고, 상기 엔진(Engine)은 상기 제1유성기어세트(PG1)의 제1캐리어(C1)에 연결되며, 상기 제1모터제너레이터(MG1)는 상기 제1유성기어세트(PG1)의 제1선기어(S1)에 연결되고, 상기 제2모터제너레이터(MG2)는 상기 제2유성기어세트(PG2)의 제2링기어(R2)에 연결된다.The first brake B1 is installed to restrain the rotation of the second sun gear S2 of the second planetary gear set PG2 and the engine is disposed on the first planetary gear set PG1, The first motor generator MG1 is connected to the first carrier C1 and the first motor generator MG1 is connected to the first sun gear S1 of the first planetary gear set PG1 and the second motor generator MG2 is connected to the first carrier C1, 2 planetary gear set PG2.
여기서, 상기 동력원과 제1유성기어세트(PG1) 및 제2유성기어세트(PG2)는 각 회전축이 모두 동심축을 이루어 배치된다.Here, the power source, the first planetary gear set PG1, and the second planetary gear set PG2 are disposed such that their rotational axes are concentric.
상기한 바와 같이 구성된 본 발명의 작용을 도면을 참조하여 살펴보면 다음과 같다. Hereinafter, the operation of the present invention will be described with reference to the drawings.
도 2는 본 발명 실시예의 파워트레인이 구현할 수 있는 운전모드를 도표로 표시한 것으로서, 상기 제1브레이크(B1)와 제1클러치(CL1) 및 제2클러치(CL2)의 작동상태의 조합에 의해 다양한 운전모드를 구현할 수 있도록 되어 있다.FIG. 2 is a graphical representation of operation modes that can be implemented by the powertrain of the embodiment of the present invention. By combining the operating state of the first brake B1 and the operating states of the first clutch CL1 and the second clutch CL2 Various operation modes can be implemented.
도 3은 전기차모드인 EV모드를 도시한 것으로서, 엔진(Engine)은 정지해 있는 상태이고 제1브레이크(B1)만 체결되어 상기 제2유성기어세트(PG2)의 제2선기어(S2)를 고정하고 있다.3 shows an EV mode in an electric vehicle mode in which the engine is stopped and only the first brake B1 is engaged so that the second sun gear S2 of the second planetary gear set PG2 is fixed .
따라서, 상기 제2모터제너레이터(MG2)가 상기 제2링기어(R2)를 구동하면 상기 제2캐리어(C2)에서는 감속되어 출력요소(OUT)로 동력이 인출되어 차량을 기동시키게 된다. Accordingly, when the second motor generator MG2 drives the second ring gear R2, the second carrier C2 decelerates and power is drawn to the output element OUT, thereby starting the vehicle.
이때, 상기 엔진(Engine)은 정지한 상태이고, 상기 제2캐리어(C2)에 연결된 제1링기어(R1)는 회전되므로 상기 제1선기어(S1)에 연결된 제1모터제너레이터(MG1)는 상기 제2모터제너레이터(MG2)와는 반대방향으로 회전하는 상태가 된다.At this time, since the engine is stopped and the first ring gear R1 connected to the second carrier C2 is rotated, the first motor generator MG1 connected to the first sun gear S1, And is rotated in a direction opposite to that of the second motor generator MG2.
도 4는 EV모드에서 하이브리드모드인 HEV1모드로 전환하는 상태를 설명하고 있는 바, 상기 EV모드 상태에서 상기 제1모터제너레이터(MG1)의 회전 속도를 줄이면 엔진(Engine)의 속도가 상승하면서 엔진(Engine)에 시동이 걸리게 되어 HEV1모드가 된다.FIG. 4 illustrates a state of switching from the EV mode to the HEV1 mode, which is a hybrid mode. When the rotational speed of the first motor generator MG1 is reduced in the EV mode, the speed of the engine increases, Engine) is started, and the HEV1 mode is set.
이 HEV1모드에서는 입력분기구조로 작용되며 주행 제어 상태에 따라 동력순환이 발생할 수 있으므로 이러한 주행상태에 들어가지 않도록 운전제어를 설정하여야 한다.In this HEV1 mode, the input branching structure is used and the power circulation may occur depending on the driving control state, so that the driving control should be set so that the driving state does not enter the driving state.
도 5는 HEV1모드에서 고정기어비모드인 FG1모드로 전환하는 상태를 도시하고 있는 바, 상기 HEV1모드에서 상기 제1모터제너레이터(MG1)의 속도가 0이 되도록 하고 상기 제2클러치(CL2)를 결합하면 FG1모드가 된다. 물론, 상기 제2클러치(CL2)가 결합할 때 상기 제2클러치(CL2)의 양단은 동일 속도로 회전하므로 상대마찰은 없는 상태이다.5 shows a state of switching from the HEV1 mode to the FG1 mode, which is the fixed gear ratio mode. In the HEV1 mode, the speed of the first motor generator MG1 is set to zero and the second clutch CL2 is engaged FG1 mode is set. Of course, there is no relative friction since both ends of the second clutch CL2 rotate at the same speed when the second clutch CL2 is engaged.
상기 FG1모드의 고정기어비는 물론 유성기어세트의 잇수에 의해 결정되는 것으로서, 여기서 기어비는 제2링기어잇수/(제2링기어잇수+제1선기어(S1)잇수)가 된다.The fixed gear ratio of the FG1 mode is of course determined by the number of teeth of the planetary gear set. Here, the gear ratio is the number of teeth of the second ring gear / (the number of teeth of the second ring gear + the number of teeth of the first sun gear S1).
도 6은 FG1모드에서 하이브리드모드인 HEV2모드로 전환하는 상태를 설명하고 있다. FG1모드에서 제1브레이크(B1)를 해제하면 HEV2모드가 되며, 이때에는 상기 엔진(Engine), 제1모터제너레이터(MG1), 제2모터제너레이터(MG2)의 구동상태에 따라 차량의 주행성능이 결정되며, 배터리의 충전상태에 따라 필요시에는 배터리를 충전할 수도 있다.6 illustrates a state of switching from the FG1 mode to the HEV2 mode which is the hybrid mode. When the first brake B1 is released in the FG1 mode, the HEV2 mode is set. At this time, depending on the driving state of the engine, the first motor generator MG1, and the second motor generator MG2, Depending on the state of charge of the battery, the battery may be charged if necessary.
이 HEV2모드는 FG2모드로 변환되기 전까지 유지되며, 시내 주행시 가장 많이 사용되는 구간이므로 효율적인 운전을 위한 최적제어가 필요한 구간이다.This HEV2 mode is maintained until it is converted into the FG2 mode, and it is the section that is used most during driving in the city, and therefore it is necessary to optimize control for efficient operation.
상기 최적제어는 엔진(Engine)의 운전점을 연비가 가장 좋은 곳에서 작동하도록 상기 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2)가 구동력을 출력 또는 발전하도록 하는 알고리즘을 사용한다.The optimum control uses an algorithm that causes the first motor generator MG1 and the second motor generator MG2 to output or develop the driving force so as to operate the operating point of the engine with the best fuel efficiency.
이 HEV2모드는 복합분기모드(Under drive)로 작동하며 동력순환이 발생하지 않는 변속비에서만 운전되도록 설정한다.The HEV2 mode is set to operate only in a hybrid transmission mode (Under drive) and only in a transmission ratio in which no power circulation occurs.
도 7은 HEV2모드에서 또 다른 고정기어비모드인 FG2모드로 전환하는 상태를 설명한 것으로서, HEV2모드에서 제1유성기어세트(PG1)와 제2유성기어세트(PG2)의 모든 요소의 회전속도가 같아지게 되면 상기 제2클러치(CL2)를 결합하여 구현한다.7 shows a state of switching from the HEV2 mode to the FG2 mode, which is another fixed gear ratio mode. In the HEV2 mode, all the elements of the first planetary gear set PG1 and the second planetary gear set PG2 have the same rotational speed The second clutch CL2 is engaged and implemented.
즉, 이 FG2모드는 상기 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2) 및 제1유성기어세트(PG1)와 제2유성기어세트(PG2)를 포함한 모든 요소가 같은 속도로 회전하며, 엔진(Engine)으로부터 입력된 동력은 그대로 상기 출력요소(OUT)로 빠져 나가게 되어 1:1의 변속비를 구현하는 상태가 되는 것이다.That is, in the FG2 mode, all the elements including the first motor generator MG1 and the second motor generator MG2, the first planetary gear set PG1 and the second planetary gear set PG2 rotate at the same speed , The power input from the engine is directly output to the output element OUT, and a state of realizing a speed ratio of 1: 1 is realized.
상기와 같은 상태에서 상기 제2클러치(CL2)가 해제되면 또 다른 하이브리드모드인 HEV3모드로 전환이 이루어진다.When the second clutch CL2 is released in the above state, the mode is switched to the HEV3 mode which is another hybrid mode.
즉, 도 8에 도시된 바와 같이, 상기 FG2모드에서 상기 제2클러치(CL2)가 해제되어 이루어지며, HEV2와 동일하게 상기 엔진(Engine), 제1모터제너레이터(MG1), 제2모터제너레이터(MG2)의 구동상태에 따라 차량의 주행성능이 결정되는 것이다.8, the second clutch CL2 is released in the FG2 mode, and the engine, the first motor generator MG1, and the second motor generator (not shown) The running performance of the vehicle is determined according to the driving state of the vehicle.
이 HEV3모드는 차량의 고속 주행시 사용되므로 효율적인 운전을 위하여 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2)는 급가속이나 등판 등에서만 사용되고 배터리의 충전상태에 따라 필요시에는 배터리를 충전하도록 작동된다.Since the HEV3 mode is used at a high speed of the vehicle, in order to operate efficiently, the first motor generator MG1 and the second motor generator MG2 are used only for rapid acceleration or back plate, .
물론, 이 모드에서도 엔진(Engine)의 운전점을 엔진(Engine)의 연비가 가장 좋은 곳에서 작동되도록 상기 제1모터제너레이터(MG1)와 제2모터제너레이터(MG2)가 구동력을 출력 또는 발전하도록 하는 알고리즘을 적용한다. Of course, even in this mode, the first motor generator MG1 and the second motor generator MG2 output or develop the driving force so that the operating point of the engine is operated in the place where the fuel economy of the engine is the best Algorithm.
이 HEV3모드는 복합분기모드(OVER DRIVE)로 작동하며 동력순환이 발생하지 않는 변속비에서만 운전되도록 설정한다.The HEV3 mode is set to operate only in a hybrid bifurcation mode (OVER DRIVE) and only in a gear ratio in which no power circulation occurs.
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 작동모드의 작동표,Fig. 2 is an operation table of each operation mode of the power train of Fig. 1,
도 3는 도 1의 파워트레인의 EV모드를 설명한 도면,FIG. 3 is a view for explaining the EV mode of the power train of FIG. 1,
도 4는 도 1의 파워트레인이 EV모드에서 HEV1모드로 전환하는 상태를 설명한 도면,4 is a diagram for explaining a state in which the power train of FIG. 1 is switched from the EV mode to the HEV1 mode, FIG.
도 5는 도 1의 파워트레인이 HEV1모드에서 FG1모드로 전환하는 상태를 설명한 도면,5 is a diagram for explaining a state in which the power train of FIG. 1 is switched from the HEV1 mode to the FG1 mode,
도 6은 도 1의 파워트레인이 FG1모드에서 HEV2모드로 전환하는 상태를 설명한 도면,6 is a diagram for explaining a state in which the power train of FIG. 1 is switched from the FG1 mode to the HEV2 mode,
도 7은 도 1의 파워트레인이 HEV2모드에서 FG2모드로 전환하는 상태를 설명한 도면,7 is a view for explaining a state in which the power train of FIG. 1 is switched from the HEV2 mode to the FG2 mode,
도 8은 도 1의 파워트레인이 FG2모드에서 HEV3모드로 전환하는 상태를 설명한 도면이다.8 is a diagram for explaining a state in which the power train of FIG. 1 is switched from the FG2 mode to the HEV3 mode.
<도면의 주요 부분에 대한 부호의 간단한 설명>BRIEF DESCRIPTION OF THE DRAWINGS FIG.
PG1; 제1유성기어세트 PG2; 제2유성기어세트PG1; A first planetary gear set PG2; The second planetary gear set
B1; 제1브레이크 OUT; 출력요소B1; A first brake OUT; Output element
Engine; 엔진 MB1; 제1모터제너레이터Engine; Engine MB1; The first motor generator
MG2; 제2모터제너레이터 CL1; 제1클러치MG2; A second motor generator CL1; The first clutch
CL2; 제2클러치 S1; 제1선기어CL2; The second clutch S1; The first sun gear
S2; 제2선기어 C1; 제1캐리어S2; A second sun gear C1; The first carrier
R1; 제1링기어 C2; 제2캐리어R1; A first ring gear C2; The second carrier
R2; 제2링기어 R2 is; The second ring gear
Claims (11)
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| KR101358072B1 (en) * | 2011-02-08 | 2014-02-03 | 한국과학기술원 | Planetary gear device having measures for restricting degrees of freedom thereof and transmission device using the same |
| US8840500B2 (en) * | 2011-11-04 | 2014-09-23 | GM Global Technology Operations LLC | Wide-node drive system |
| CN102922982B (en) * | 2012-11-14 | 2015-04-15 | 吉林大学 | Double planetary gear train dynamic coupling transmission system |
| KR101500356B1 (en) * | 2013-07-01 | 2015-03-09 | 현대자동차 주식회사 | Power transmission system of hybrid electric vehicle |
| KR101500355B1 (en) * | 2013-07-01 | 2015-03-09 | 현대자동차 주식회사 | Power transmission system of hybrid electric vehicle |
| KR101500357B1 (en) * | 2013-07-01 | 2015-03-09 | 현대자동차 주식회사 | Power transmission system of hybrid electric vehicle |
| KR101500363B1 (en) * | 2013-07-01 | 2015-03-16 | 현대자동차 주식회사 | Power transmission system of hybrid electric vehicle |
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| JP2004239278A (en) | 2003-02-03 | 2004-08-26 | Nissan Motor Co Ltd | Hybrid transmission |
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| KR100872651B1 (en) | 2006-10-31 | 2008-12-09 | 현대자동차주식회사 | Continuously variable transmission for HEV |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239278A (en) | 2003-02-03 | 2004-08-26 | Nissan Motor Co Ltd | Hybrid transmission |
| KR100872651B1 (en) | 2006-10-31 | 2008-12-09 | 현대자동차주식회사 | Continuously variable transmission for HEV |
| KR100836291B1 (en) | 2006-12-12 | 2008-06-11 | 현대자동차주식회사 | Power train for a hybrid electric vehicle with continuously variable transmission |
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