KR100513522B1 - Power train system of hybrid electric vehicle - Google Patents
Power train system of hybrid electric vehicle Download PDFInfo
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- KR100513522B1 KR100513522B1 KR10-2003-0030203A KR20030030203A KR100513522B1 KR 100513522 B1 KR100513522 B1 KR 100513522B1 KR 20030030203 A KR20030030203 A KR 20030030203A KR 100513522 B1 KR100513522 B1 KR 100513522B1
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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
- B60K6/38—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
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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
- B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
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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
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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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
- B60Y2200/91—Electric vehicles
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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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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
본 발명은 회생 제동 및 타력 주행시 엔진의 관성을 분리하여 변속 시 동력 단절감을 감소할 수 있는 하이브리드 전기 차량의 동력 전달 시스템에 관한 것으로, 엔진과 모터의 두 가지 동력원을 사용하고, 엔진과 모터에 연결되는 변속기를 통해 출력되는 동력을 종감속부로 전달하는 하이브리드 전기 차량의 동력 전달 시스템에 있어서, 엔진에 연결되는 클러치 출력축과 변속기 입력축 사이에 장착되는 제1 모터와; 변속기 출력축과 종감속부의 입력축 사이에 장착되는 제2 모터를 포함하여 구성하며, 엔진, 제1 모터, 제2 모터, 클러치의 작동방식에 따라 각각 엔진 모드, 모터 모드, 하이브리드 모드, 회생 제동 모드로 동력을 전달한다.The present invention relates to a power transmission system of a hybrid electric vehicle that can reduce power disconnection when shifting by separating the inertia of the engine during regenerative braking and inertia driving, using two power sources, an engine and a motor, and connecting the engine and the motor. A power transmission system for a hybrid electric vehicle that transmits power output through a transmission to a longitudinal reduction unit, comprising: a first motor mounted between a clutch output shaft connected to an engine and a transmission input shaft; It comprises a second motor mounted between the transmission output shaft and the input shaft of the longitudinal reduction gear, and according to the operating method of the engine, the first motor, the second motor, the clutch, respectively, into engine mode, motor mode, hybrid mode, regenerative braking mode. Transmits power.
Description
본 발명은 에 관한 것으로서, 특히 에 관한 것이다.The present invention relates to, and in particular to.
통상적으로, 하이브리드 전기 차량은 기존의 내연기관 차량과는 달리 엔진과 모터의 두 가지 동력원을 사용하므로 이 두 동력원과 변속장치, 차량 구동축을 적절하게 연결하여 기능을 발휘할 수 있도록 고유의 하이브리드 전기 차량용 동력 전달계의 설계가 필요하다. Typically, hybrid electric vehicles, unlike conventional internal combustion engine vehicles, use two power sources, an engine and a motor, so that the power of the intrinsic hybrid electric vehicle can be functioned by properly connecting the two power sources, the transmission, and the vehicle drive shaft. The design of the delivery system is necessary.
도 1을 참조하면, 종래 기술에 따른 하이브리드 전기 차량의 경우는 엔진(110)과 모터(120)가 동일 축에 연결되어 있는 기동 발전기(SA ; Starter-Alternator)형식의 동력 전달계가 주로 채택되고 있으며, 아이들 스톱(Idle Stop), 회생 제동, 동력 보조 등의 역할을 수행한다. Referring to FIG. 1, in the hybrid electric vehicle according to the related art, a power transmission system of a starter-alternator (SA) type in which an engine 110 and a motor 120 are connected to the same shaft is mainly adopted. , Idle Stop, Regenerative Braking, Power Assist, etc.
기존의 하이브리드 전기 차량용 동력 전달계로 널리 채용되고 있는 기동 발전기(SA)방식은 엔진(110)과 모터(120)를 작동 중 분리할 수가 없기 때문에 전기 차량 모드를 구현할 수 없으며, 회생 제동 시에도 엔진(110)의 관성 및 마찰 부하가 그대로 적용되므로 효율이 저하될 수밖에 없다. The starter generator (SA) method, which is widely used as a power transmission system for a conventional hybrid electric vehicle, cannot implement the electric vehicle mode because the engine 110 and the motor 120 cannot be separated during operation, and the engine (even during regenerative braking) Since the inertia and friction load of 110 is applied as it is, the efficiency is inevitably deteriorated.
특히 클러치(130)에 엔진(110)과 모터(120)의 동력이 모두 전달되므로 클러치(130)의 토크 전달 용량이 매우 커지며 이에 따라 저속 시 클러치(130) 결합 토크 확보를 위해 일정 수준이상의 유압 펌프를 필요로 하며 이는 차량 전체의 효율을 낮추게 되는 주요 요인이 되는 문제점이 있었다.In particular, since the power of both the engine 110 and the motor 120 is transmitted to the clutch 130, the torque transmission capacity of the clutch 130 becomes very large, and accordingly, a hydraulic pump of a predetermined level or more to secure the coupling torque of the clutch 130 at a low speed. There is a problem that this is a major factor that lowers the efficiency of the entire vehicle.
본 발명의 목적은 회생 제동 및 타력 주행시 엔진의 관성을 분리하여 변속 시 동력 단절감을 감소할 수 있는 하이브리드 전기 차량의 동력 전달 시스템을 제공하는데 있다.An object of the present invention is to provide a power transmission system of a hybrid electric vehicle that can reduce the power disconnection during shifting by separating the inertia of the engine during regenerative braking and inertia driving.
상기와 같은 목적을 달성하기 위하여 본 발명은 엔진과 모터의 두 가지 동력원을 사용하고, 엔진과 모터에 연결되는 변속기를 통해 출력되는 동력을 종감속부로 전달하는 하이브리드 전기 차량의 동력 전달 시스템에 있어서, 엔진에 연결되는 클러치 출력축과 변속기 입력축 사이에 장착되는 제1 모터와; 변속기 출력축과 종감속부의 입력축 사이에 장착되는 제2 모터를 포함하여 구성하며, 엔진, 제1 모터, 제2 모터, 클러치의 작동방식에 따라 각각 엔진 모드, 모터 모드, 하이브리드 모드, 회생 제동 모드로 동력을 전달하는 것을 특징으로 한다.In order to achieve the above object, the present invention uses two power sources of the engine and the motor, in the power transmission system of a hybrid electric vehicle for transmitting the power output through the transmission connected to the engine and the motor to the longitudinal deceleration unit, A first motor mounted between the clutch output shaft and the transmission input shaft connected to the engine; It comprises a second motor mounted between the transmission output shaft and the input shaft of the longitudinal reduction gear, and according to the operating method of the engine, the first motor, the second motor, the clutch, respectively, into engine mode, motor mode, hybrid mode, regenerative braking mode. It is characterized by transmitting power.
이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 상세히 설명한다. 하기 설명 및 첨부 도면과 같은 많은 특정 상세들이 본 발명의 보다 전반적인 이해를 제공하기 위해 나타나 있으나, 이들 특정 상세들은 본 발명의 설명을 위해 예시한 것으로 본 발명이 그들에 한정됨을 의미하는 것은 아니다. 그리고 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.
도 2를 참조하여 본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달 시스템 구성을 설명한다.Referring to Figure 2 will be described the configuration of the power transmission system of a hybrid electric vehicle according to an embodiment of the present invention.
본 발명의 실시예는 엔진과 모터의 두 가지 동력원을 사용하고, 엔진과 모터에 연결되는 변속기를 통해 출력되는 동력을 종감속부(240)로 전달하는 하이브리드 전기 차량의 동력 전달 시스템에 있어서, 제1 모터(250), 제2 모터(260)를 포함하여 구성하고, 엔진(210), 제1 모터(250), 제2 모터(260), 클러치(220)의 작동방식에 따라 각각 엔진 모드, 모터 모드, 하이브리드 모드, 회생 제동 모드로 동력을 전달하는 것을 특징으로 한다.In the embodiment of the present invention, in the power transmission system of a hybrid electric vehicle using two power sources of the engine and the motor, and transmits the power output through the transmission connected to the engine and the motor to the sub-deceleration unit 240, The first motor 250 and the second motor 260 are configured to include the engine mode, the first motor 250, the second motor 260, and the clutch 220, respectively. It is characterized in that the power transmission in the motor mode, hybrid mode, regenerative braking mode.
제1 모터(250)는 도 2에 도시된 바와 같이 엔진(210)에 연결되는 클러치(220) 출력축과 변속기(230) 입력축 사이에 장착되며, 제2 모터(260)는 변속기(230) 출력축과 종감속부(240)의 입력축 사이에 장착된다.As shown in FIG. 2, the first motor 250 is mounted between the clutch 220 output shaft connected to the engine 210 and the transmission 230 input shaft, and the second motor 260 is connected to the transmission 230 output shaft. It is mounted between the input shaft of the longitudinal reduction unit 240.
즉, 본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달계 구조는 엔진(210), 클러치(220), 제1 모터(250), 변속기(230), 제2 모터(260), 종감속부(240)(차동 기어)로 이루어지며 제1 모터(250)는 클러치(220) 출력축과 변속기(230) 입력축 사이에 위치하고, 제2 모터(260)는 변속기(230) 출력축과 차동 기어의 입력축 사이에 위치하게 된다.That is, the power transmission system structure of the hybrid electric vehicle according to the embodiment of the present invention is the engine 210, the clutch 220, the first motor 250, the transmission 230, the second motor 260, longitudinal deceleration unit ( 240 (differential gear), the first motor 250 is located between the clutch 220 output shaft and the transmission 230 input shaft, the second motor 260 is between the transmission 230 output shaft and the input shaft of the differential gear. Will be located.
본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달계 구조에서 변속기(230)는 자동화 수동 변속기(AMT ; Automated Manual Transmission)를 사용하며 종래 기술의 동력 전달계 구조에서 사용되던 대형의 모터 대신 소형의 모터를 2개 사용함으로써 소용량 모터로 전기 차량 모드(ZEV ; Zero Emission Vehicle)의 구현이 가능하다.In the power transmission system structure of the hybrid electric vehicle according to the embodiment of the present invention, the transmission 230 uses an automated manual transmission (AMT) and uses a small motor instead of a large motor used in the conventional power transmission system structure. The use of two allows for the implementation of an electric vehicle mode (ZEV; zero emission vehicle) with a small motor.
또한, 2개의 모터를 사용함으로써 자동화 수동 변속기의 가장 큰 단점인 변속 중 동력 단절 현상을 방지할 수 있다. In addition, by using two motors it is possible to prevent the power cut phenomenon during the shift, which is the biggest disadvantage of the automatic manual transmission.
즉, 회생 제동 및 타력 주행시 엔진(210)의 관성을 분리시킬 수 있다. That is, the inertia of the engine 210 may be separated during regenerative braking and inertia driving.
그리고, 회생 제동 효율을 극대화시킬 수 있고, 종래 기술의 동력 전달계 구조에 비해 엔진(210)의 연료 차단(Fuel-Cut) 구간을 확대할 수 있다.In addition, the regenerative braking efficiency can be maximized, and the fuel-cut section of the engine 210 can be enlarged as compared with the conventional power transmission system structure.
도 2 내지 도 6을 참조하여 본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달 경로를 설명한다.A power transmission path of a hybrid electric vehicle according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 to 6.
1) 엔진 모드1) engine mode
엔진 모드는 엔진(210)만으로 작동하는 모드이며 클러치(220)의 작동 및 동력의 흐름은 도 3에 도시되어 있다.The engine mode is a mode of operating only with the engine 210 and the operation of the clutch 220 and the flow of power are shown in FIG. 3.
엔진 모드의 작동은 클러치(220)를 결합시키고 제1 모터(250), 제2 모터(260)의 동력을 끊음으로써 구현되게 된다.Operation of the engine mode is implemented by coupling the clutch 220 and turning off the power of the first motor 250 and the second motor 260.
배터리의 충전 수준이 낮거나 엔진(210)의 동력만으로 최적 운전이 가능할 경우 선택되는 모드이다.The mode is selected when the level of charge of the battery is low or the optimum operation is possible only by the power of the engine 210.
엔진 모드에서 각각의 제1 모터(250)와 제2 모터(260)에는 전력의 입출력이 일어나지 않으며 단지 관성으로만 작용하며 자유 회전하게 된다.In the engine mode, each of the first motor 250 and the second motor 260 does not occur in the input and output of power, and only acts as inertia and free rotation.
또한 엔진 모드의 주행은 기존 내연기관 차량의 주행과 완전히 동일하므로 기존 내연기관 차량과 동일한 엔진(210) 및 변속기(230) 제어 전략을 사용하게 된다.In addition, since the driving of the engine mode is exactly the same as that of the existing internal combustion engine vehicle, the same engine 210 and transmission 230 control strategy as the existing internal combustion engine vehicle is used.
2) 모터 모드2) motor mode
모터 모드는 제1 모터(250)와 제2 모터(260)만으로 작동하는 모드이며 클러치(220)의 작동 및 동력의 흐름은 도 4에 도시되어 있다.The motor mode is a mode in which only the first motor 250 and the second motor 260 operate, and the operation of the clutch 220 and the flow of power are shown in FIG. 4.
모터 모드는 배터리의 충전 수준이 충분히 높고, 발진 등 엔진(210)의 효율이 극히 낮은 상황에서 선택되는 모드이다.The motor mode is a mode that is selected in a situation where the charge level of the battery is sufficiently high and the efficiency of the engine 210 is extremely low, such as oscillation.
주행 상황에 따라 제1 모터(250), 제2 모터(260)만을 각각 사용하거나 높은 가속력이 요구되는 경우 제1 모터(250), 제2 모터(260)를 모두 사용할 수도 있다.Depending on the driving situation, only the first motor 250 and the second motor 260 may be used respectively, or when the high acceleration force is required, both the first motor 250 and the second motor 260 may be used.
모터 모드가 적용되는 주행 상황은 다음과 같다.Driving conditions to which the motor mode is applied are as follows.
① 발진 시① When oscillation
차량의 발진 시는 저속/고토크가 요구되며, 이러한 상황에서 엔진(210)의 효율은 연/배기 측면에서 일반적으로 매우 낮다. When the vehicle starts, low speed / high torque is required, and in this situation, the efficiency of the engine 210 is generally very low in terms of fuel / exhaust.
따라서 제2 모터(260)를 이용하여 차량의 크립력을 발생시키게 된다.Therefore, the creep force of the vehicle is generated using the second motor 260.
② 타력 주행 중 가속 시② During acceleration
타력 주행 시에는 운전자의 페달 입력에 따라 가벼운 회생 제동 또는 가벼운 모터 보조가 작동된다. In inactive driving, light regenerative braking or light motor assist is activated depending on the driver's pedal input.
타력 주행 시에는 일반적으로 차량이 중/고속에서 운행되므로 제1 모터(250)를 이용해서 가속 보조/회생 제동을 수행하게 된다.In the case of inertia driving, since the vehicle is generally driven at a medium / high speed, acceleration assist / regenerative braking is performed using the first motor 250.
3) 회생 제동 모드3) Regenerative braking mode
회생 제동 모드의 기계적인 구조는 모터 모드와 동일하며, 에너지 흐름만 모터 모드와 반대로 작용한다. The mechanical structure of the regenerative braking mode is the same as that of the motor mode, and only the energy flow is reversed from the motor mode.
회생 제동 모드 시의 클러치(220)의 작동 및 동력의 흐름은 도 5에 도시되어 있다.The operation and power flow of the clutch 220 in the regenerative braking mode is shown in FIG. 5.
회생 제동 모드는 배터리의 충전 수준이 제한치 보다 낮고, 운전자가 브레이크 페달을 밟아 감속을 시도할 때 선택되는 모드이다.The regenerative braking mode is selected when the battery charge level is lower than the limit and the driver attempts to decelerate by pressing the brake pedal.
운전자의 제동량에 따라 제1 모터(250), 제2 모터(260)만을 각각 사용하거나 높은 제동력이 요구되는 경우 제1 모터(250), 제2 모터(260)를 모두 사용할 수도 있다.Depending on the amount of braking of the driver, only the first motor 250 and the second motor 260 may be used, respectively, or when the high braking force is required, both the first motor 250 and the second motor 260 may be used.
4) 하이브리드 모드4) hybrid mode
하이브리드 모드는 급격한 가속이 요구되거나 엔진(210)의 동력만으로는 최적 작동점을 유지하면서 구동력을 발생하기 힘든 경우, 엔진(210)과 제1 모터(250), 제2 모터(260)를 모두 작동하여 주행하는 모드이며 클러치(220)의 작동 및 동력의 흐름은 도 6에 도시되어 있다.In the hybrid mode, when rapid acceleration is required or when driving force is hardly generated while maintaining the optimum operating point only by the power of the engine 210, the engine 210, the first motor 250, and the second motor 260 may be operated. The driving mode and the operation of the clutch 220 and the flow of power are shown in FIG. 6.
급격한 가속이 요구되는 경우 운전자의 요구를 충족시키기 위해 엔진(210)은 전개 운전을 하게 되며 제1 모터(250), 제2 모터(260) 모두 최대 출력으로 운전되게 된다.When a sudden acceleration is required, the engine 210 performs a deployment operation to satisfy the driver's demand, and both the first motor 250 and the second motor 260 are operated at the maximum output.
엔진(210)을 최적 운전시키기 위한 경우 엔진(210)의 운전은 최적 운전점에 고정시키고, 모자라는 동력은 제1 모터(250), 제2 모터(260)를 통해 보조한다.In order to optimally operate the engine 210, the operation of the engine 210 is fixed at the optimum operating point, and power that is insufficient is assisted through the first motor 250 and the second motor 260.
상술한 바와 같이 본 발명에 따른 하이브리드 전기 차량의 동력 전달 시스템은 전기 차량 모드 구현이 가능하며, 회생 제동 효율을 향상시킬 수 있다. As described above, the power transmission system of the hybrid electric vehicle according to the present invention can implement the electric vehicle mode and can improve the regenerative braking efficiency.
또한, 변속 시 동력 단절감 감소할 수 있고, 다양한 주행 상황에 대처할 수 있는 엔진, 모터, 클러치의 작동에 의한 주행 모드를 개발할 수 있는 효과가 있다.In addition, it is possible to reduce the power cut during shifting, and there is an effect of developing a driving mode by operating an engine, a motor, and a clutch that can cope with various driving situations.
도 1은 종래 기술에 따른 하이브리드 전기 차량의 동력 전달 시스템 구성을 도시한 도면.1 is a view showing a configuration of a power transmission system of a hybrid electric vehicle according to the prior art.
도 2는 본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달 시스템 구성을 도시한 도면.2 is a view showing a configuration of a power transmission system of a hybrid electric vehicle according to an embodiment of the present invention.
도 3 내지 도 6은 본 발명의 실시예에 따른 하이브리드 전기 차량의 동력 전달 경로를 도시한 도면.3 to 6 illustrate a power transmission path of a hybrid electric vehicle according to an embodiment of the present invention.
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| JP4325615B2 (en) * | 2005-12-12 | 2009-09-02 | 日産自動車株式会社 | Engine stop control device for hybrid vehicle |
| KR100783315B1 (en) * | 2006-01-20 | 2007-12-26 | 현대자동차주식회사 | Dual Mode Power Transmission Equipment for Hybrid Electric Vehicle |
| US7481733B2 (en) | 2006-06-07 | 2009-01-27 | Hyundai Motor Company | Power train for hybrid electric vehicles and method of controlling the same |
| US9604527B2 (en) * | 2015-07-14 | 2017-03-28 | Saudi Arabian Oil Company | Series-parallel electric hybrid powertrain with multi fuel capabilities |
| CN111703292A (en) * | 2020-08-19 | 2020-09-25 | 浙江吉利控股集团有限公司 | Hybrid power driving system and vehicle |
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| US9139105B2 (en) | 2012-12-18 | 2015-09-22 | Hyundai Motor Company | Deceleration control method and system for electric vehicle while coasting |
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