KR20210142448A - Transmission System - Google Patents

Transmission System Download PDF

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KR20210142448A
KR20210142448A KR1020200059290A KR20200059290A KR20210142448A KR 20210142448 A KR20210142448 A KR 20210142448A KR 1020200059290 A KR1020200059290 A KR 1020200059290A KR 20200059290 A KR20200059290 A KR 20200059290A KR 20210142448 A KR20210142448 A KR 20210142448A
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South Korea
Prior art keywords
gear
motor
engine
shaft
transmission
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KR1020200059290A
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Korean (ko)
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KR102338308B1 (en
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김진성
오상민
이희용
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현대트랜시스 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • B60K17/24—Arrangements of mountings for shafting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/38—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with synchro-meshing
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Abstract

According to one embodiment of the present invention, a transmission comprises: an input shaft rotated by receiving power of an engine; a gear unit connected to the input shaft and selectively outputting the power transmitted from the input shaft; and an output shaft selectively receiving the power from the gear unit to output the power to a vehicle wheel. A first motor for synchronizing the speed of the engine is coupled between the input shaft and the engine, and a second motor for continuously transmitting of the power during shifting is coupled between the output shaft and the vehicle wheel.

Description

변속 시스템{Transmission System}Transmission System

본 발명은 변속 시스템에 관한 것으로, 상세하게는 변속시 동력단절감을 최소화하고 회생 제동 효율을 상승시킬 수 있는 변속 시스템에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift system, and more particularly, to a shift system capable of minimizing a feeling of power cut during shift and increasing regenerative braking efficiency.

자동차에 대한 끊임없는 연비 향상의 요구와 각 나라의 배출가스 규제의 강화에 따라 친환경 자동차에 대한 요구가 증가하고 있으며, 이에 대한 현실적인 대안으로 친환경 자동차가 제공되고 있다.As the demand for continuous improvement of fuel efficiency for automobiles and the strengthening of emission gas regulations in each country increases, the demand for eco-friendly vehicles is increasing, and eco-friendly vehicles are being provided as a realistic alternative to this.

친환경 자동차는 연료전지 자동차, 전기자동차, 플러그인 전기자동차, 하이브리드 자동차를 포괄하는 것으로, 통상적으로 구동력 발생을 위한 모터를 구비한다.The eco-friendly vehicle includes a fuel cell vehicle, an electric vehicle, a plug-in electric vehicle, and a hybrid vehicle, and typically includes a motor for generating driving force.

이러한 친환경 자동차의 일례인 하이브리드 자동차(hybrid vehicle)는 내연기관 엔진(internal combustion engine)과 배터리 전원을 함께 사용한다. 즉, 하이브리드 자동차는 내연기관 엔진의 동력과 모터의 동력을 효율적으로 조합하여 사용한다. 즉, 하이브리드 자동차는 엔진과 모터로 구성되는 두 개의 동력원으로 주행하는 과정에서 엔진과 모터를 조화롭게 동작시켜 따라 추가적인 연비 향상을 도모할 수 있다.A hybrid vehicle, which is an example of such an eco-friendly vehicle, uses an internal combustion engine and battery power together. That is, the hybrid vehicle efficiently combines and uses the power of the internal combustion engine engine and the power of the motor. That is, in the process of driving the hybrid vehicle with two power sources including the engine and the motor, the engine and the motor are harmoniously operated to achieve additional fuel efficiency improvement.

일반적으로, 하이브리드 자동차는 배터리의 전력을 인버터에서 변환하여 모터에 인가함으로 모터를 작동시킨다. 이때, 모터는 높은 회전수를 가지고 회전하여 동력을 프로펠러 샤프트 또는 구동축 등에 전달한다.In general, a hybrid vehicle operates a motor by converting power of a battery in an inverter and applying it to the motor. At this time, the motor rotates with a high rotational speed and transmits power to the propeller shaft or the drive shaft.

한편 도 1에 도시된 종래 기술에서 하이브리드 AMT(자동화 수동 변속기) 변속 시스템의 경우, 엔진 클러치와 변속기 입력축 사이에 모터가 위치하는 구조 혹은 ISG가 추가된 구조의 시스템이다.On the other hand, in the case of the hybrid AMT (automated manual transmission) shifting system in the prior art shown in FIG. 1, the motor is positioned between the engine clutch and the transmission input shaft or the ISG is added.

상기 시스템의 경우 모터를 이용하여 싱크로나이저의 결합을 위한 동기화 수행 후 싱크로나이저를 결합하고, 엔진을 이용하여 엔진 클러치의 결합을 위한 2 차 동기화를 수행한 후에 엔진 클러치를 결합함으로써 짧은 변속시간을 확보하여 변속감 향상을 달성하도록 한다.In the case of the above system, a short shift time is secured by engaging the synchronizer after performing synchronization for coupling of the synchronizer using a motor, and engaging the engine clutch after performing secondary synchronization for coupling of the engine clutch using the engine. to achieve an improvement in the shift feel.

그러나, 상기와 같은 시스템을 통해 변속 시간을 줄이더라도 동력 단절이 발생할 수 밖에 없고, 회생 제동시 변속이 제한되어 고속에서 제동시 높은 회생력을 내지 못할 가능성이 있다.However, even if the shift time is reduced through the system as described above, power interruption inevitably occurs, and the shift is limited during regenerative braking, so there is a possibility that high regenerative force cannot be achieved during braking at high speed.

등록특허공보 제 10-1976620호Registered Patent Publication No. 10-1976620

본 발명은 전술한 문제점을 해결하기 위해 안출된 것으로서, 변속시 동력단절감을 최소화하고 회생 제동 효율을 상승시킬 수 있는 변속 시스템을 제공하는데 그 목적이 있다.The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a shifting system capable of minimizing a power cut during shift and increasing regenerative braking efficiency.

본 발명의 일 실시예에 따른 변속기는, 엔진의 출력을 전달받아 회전하는 입력 샤프트와, 상기 입력 샤프트에 연결되고 상기 입력 샤프트로부터 전달되는 동력을 선택적으로 출력하는 기어부 및 상기 기어부로부터 선택적으로 동력을 전달받아 차륜으로 출력하는 출력 샤프트를 포함하고, 상기 입력 샤프트와 상기 엔진 사이에는 상기 엔진의 속도 동기화를 위한 제 1 모터가 결합되고, 상기 출력 샤프트와 상기 차륜 사이에는 변속시 동력의 연속적 전달을 위한 제 2 모터가 결합되는 것을 특징으로 한다.A transmission according to an embodiment of the present invention includes an input shaft rotating by receiving an output of an engine, a gear connected to the input shaft and selectively outputting power transmitted from the input shaft, and selectively from the gear unit an output shaft receiving power and outputting it to a wheel, a first motor for speed synchronization of the engine is coupled between the input shaft and the engine, and continuous transmission of power during shifting between the output shaft and the wheel It is characterized in that the second motor for the coupled.

바람직하게는, 상기 기어부는, 제 1 기어, 제 2 기어, 제 3 기어 및 제 4 기어를 포함하고, 상기 제 1 기어 내지 제 4 기어는 전진 기어인 것을 특징으로 한다.Preferably, the gear unit includes a first gear, a second gear, a third gear, and a fourth gear, and the first to fourth gears are forward gears.

바람직하게는, 상기 기어부는, 상기 제 1 기어와 상기 제 2 기어 사이에 배치되고 상기 제 1 기어 또는 상기 제 2 기어 중 어느 하나를 선택하여 상기 출력 샤프트와 함께 회전되도록 하는 제 1 싱크로 나이저와, 상기 제 3 기어와 상기 제 4 기어 사이에 배치되고 상기 제 3 기어 또는 상기 제 4 기어 중 어느 하나를 선택하여 상기 출력 샤프트와 함께 회전되도록 하는 제 2 싱크로 나이저를 더 포함하는 것을 특징으로 한다.Preferably, the gear unit includes a first synchronizer disposed between the first gear and the second gear and configured to rotate together with the output shaft by selecting either the first gear or the second gear; and a second synchronizer disposed between the third gear and the fourth gear and configured to rotate with the output shaft by selecting either the third gear or the fourth gear.

바람직하게는, 상기 제 2 모터와 상기 차륜 사이에는 상기 출력 샤프트로부터 전달되는 동력을 감소시키는 감속 기어가 연결되는 것을 특징으로 한다.Preferably, a reduction gear for reducing power transmitted from the output shaft is connected between the second motor and the wheel.

바람직하게는, 상기 기어부는, 상기 입력 샤프트와 연결되고, 상기 제 1 기어 내지 상기 제 4 기어의 입력측에 연결되며 상기 출력 샤프트와 대향되게 배치되는 제 1 카운터 샤프트와, 상기 출력 샤프트와 연결되고, 상기 제 1 기어 내지 상기 제 4 기어의 출력측에 연결되며 상기 입력 샤프트와 대향되게 배치되는 제 2 카운터 샤프트를 더 포함하는 것을 특징으로 한다.Preferably, the gear unit includes a first counter shaft connected to the input shaft, connected to an input side of the first gear to the fourth gear, and disposed opposite to the output shaft, and connected to the output shaft, It characterized in that it further comprises a second counter shaft connected to the output side of the first gear to the fourth gear and disposed to face the input shaft.

바람직하게는, 상기 변속기의 변속시, 상기 제 1 모터의 회전에 의해 상기 엔진의 토크가 상쇄되고, 상기 제 2 모터의 회전에 의해 상기 차륜에 전달되는 동력이 유지되면서 상기 제 1 모터와 상기 엔진의 회전에 의해 상기 엔진 축과 상기 기어부의 기어 중 어느 하나가 동기화되는 것을 특징으로 한다.Preferably, when the transmission is shifted, torque of the engine is offset by rotation of the first motor, and power transmitted to the wheel is maintained by rotation of the second motor while maintaining the first motor and the engine It characterized in that any one of the gear of the engine shaft and the gear unit is synchronized by the rotation of the.

바람직하게는, 상기 변속기는 HEV 모드로 작동가능하고, 상기 HEV 모드 작동시, 상기 제 1 모터와 상기 엔진의 회전에 의해 상기 엔진 축과 상기 기어부의 기어 중 어느 하나가 동기화되는 것을 특징으로 한다.Preferably, the transmission is operable in an HEV mode, and when the HEV mode is operated, one of the gears of the engine shaft and the gear unit is synchronized by rotation of the first motor and the engine.

바람직하게는, 상기 변속기는 EV 모드로 작동가능하고, 상기 EV 모드 작동시, 상기 제 1 모터의 회전에 의해 상기 엔진의 토크가 상쇄되는 것을 특징으로 한다.Preferably, the transmission is operable in the EV mode, and when the EV mode is operated, the torque of the engine is offset by rotation of the first motor.

바람직하게는, 상기 변속기는 후진시 상기 제 2 모터의 역회전으로 후진하는 것을 특징으로 한다. Preferably, when the transmission is reversed, it is characterized in that the second motor reverses the reverse rotation.

본 발명의 실시예에 따르면 종래 기술에 비해 변속기 동력단절감이 감소되고 회생 제동 효율이 상승될 수 있는 효과가 있다.According to the embodiment of the present invention, there is an effect that the transmission power cut-off is reduced and the regenerative braking efficiency can be increased compared to the prior art.

또한, 종래 기술 대비 후진기어와 엔진 클러치가 요구되지 않으므로 원가가 절감되고 변속기의 중량이 저감되는 효과가 있다.In addition, since the reverse gear and the engine clutch are not required compared to the prior art, the cost is reduced and the weight of the transmission is reduced.

도 1은 종래 기술에 따른 변속 시스템을 나타낸 도면이다.
도 2는 본 발명의 일 실시예에 따른 변속 시스템을 나타낸 도면이다.1 is a view showing a transmission system according to the prior art.
2 is a view showing a shifting system according to an embodiment of the present invention.

이하, 본 발명의 바람직한 실시예를 첨부된 도면들을 참조하여 상세히 설명한다. 우선 각 도면의 구성 요소들에 참조 부호를 부가함에 있어서, 동일한 구성 요소들에 대해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 또한, 본 발명을 설명함에 있어, 관련된 공지 구성 또는 기능에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략한다. 또한, 이하에서 본 발명의 바람직한 실시예를 설명할 것이나, 본 발명의 기술적 사상은 이에 한정하거나 제한되지 않고 당업자에 의해 변형되어 다양하게 실시될 수 있음은 물론이다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in adding reference numerals to the components of each drawing, the same components are given the same reference numerals as much as possible even if they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited thereto and may be variously implemented by those skilled in the art without being limited thereto.

도 2는 본 발명의 일 실시예에 따른 변속 시스템을 나타낸 도면이다.2 is a view showing a shifting system according to an embodiment of the present invention.

도 2를 참조하면 본 발명의 일 실시예에 따른 변속 시스템은, 엔진(200)의 출력을 전달받아 회전하는 입력 샤프트(10)와, 입력 샤프트(10)에 연결되고 입력 샤프트(10)로부터 전달되는 동력을 선택적으로 출력하는 기어부와, 기어부로부터 선택적으로 동력을 전달받아 차륜(600)으로 출력하는 출력 샤프트(20)를 구비하는 변속기(100)를 포함할 수 있다.Referring to FIG. 2 , the shift system according to an embodiment of the present invention includes an input shaft 10 that receives the output of the engine 200 and rotates, is connected to the input shaft 10 and transmitted from the input shaft 10 . The transmission 100 may include a gear unit for selectively outputting power to be used, and an output shaft 20 for selectively receiving power from the gear unit and outputting the power to the wheel 600 .

이 때, 상기 변속기(100)는 하이브리드 차량(Hybrid Electric Vehicle, HEV)의 변속기일 수 있고, 변속기(100)는 또한 자동화 수동 변속기(AMT)일 수 있다.In this case, the transmission 100 may be a transmission of a hybrid electric vehicle (HEV), and the transmission 100 may also be an automated manual transmission (AMT).

한편 전술한 기어부는 제 1 기어(G1), 제 2 기어(G2), 제 3 기어(G3) 및 제 4 기어(G4)를 포함할 수 있고, 제 1 기어(G1) 내지 제 4 기어(G4)는 전진 기어일 수 있다.Meanwhile, the aforementioned gear unit may include a first gear G1, a second gear G2, a third gear G3, and a fourth gear G4, and the first gear G1 to the fourth gear G4. ) may be a forward gear.

입력 샤프트(10)는 도 2에 도시된 바와 같이 제 1 기어(G1) 내지 제 4 기어(G4)의 입력측에 연결되어 엔진(200)으로부터 전달되는 동력을 제 1 기어(G1) 내지 제 4 기어(G4)에 전달할 수 있다.The input shaft 10 is connected to the input side of the first gear G1 to the fourth gear G4 as shown in FIG. 2 and transmits the power transmitted from the engine 200 to the first gear G1 to the fourth gear. It can be forwarded to (G4).

또한, 기어부는 제 1 기어(G1)와 제 2 기어(G2) 사이에 배치되고 제 1 기어(G1) 또는 제 2 기어(G2) 중 어느 하나를 선택하여 출력 샤프트(20)와 함께 회전되도록 하는 제 1 싱크로 나이저(40)와, 제 3 기어(G3)와 제 4 기어(G4) 사이에 배치되고 제 3 기어(G3) 또는 제 4 기어(G4) 중 어느 하나를 선택하여 출력 샤프트(20)와 함께 회전되도록 하는 제 2 싱크로 나이저(50)를 더 포함할 수 있다.In addition, the gear unit is disposed between the first gear (G1) and the second gear (G2) and selects either the first gear (G1) or the second gear (G2) to rotate together with the output shaft (20) The output shaft 20 is disposed between the first synchronizer 40 and the third gear G3 and the fourth gear G4 and selects either the third gear G3 or the fourth gear G4. It may further include a second synchronizer 50 to rotate together.

또한, 기어부는 입력 샤프트(10)와 연결되고, 제 1 기어(G1) 내지 제 4 기어(G4)의 입력측에 연결되며 출력 샤프트(20)와 대향되게 배치되는 제 1 카운터 샤프트(30)와, 출력 샤프트(20)와 연결되고, 제 1 기어(G1) 내지 제 4 기어(G4)의 출력측에 연결되며 입력 샤프트(10)와 대향되게 배치되는 제 2 카운터 샤프트(60)를 더 포함할 수 있다.In addition, the gear unit is connected to the input shaft 10, is connected to the input side of the first gear (G1) to the fourth gear (G4), and a first counter shaft 30 disposed opposite to the output shaft 20; It may further include a second counter shaft 60 connected to the output shaft 20, connected to the output side of the first gear G1 to the fourth gear G4, and disposed to face the input shaft 10. .

이 때, 제 1 기어(G1) 내지 제 4 기어(G4)의 입력측은 입력 샤프트(10)와 연결된 제 1 카운터 샤프트(30)를 축으로 회전할 수 있고, 제 1 기어(G1) 내지 제 4 기어(G4)의 출력측은 출력 샤프트(20)와 연결된 제 2 카운터 샤프트(60)를 축으로 회전할 수 있다.In this case, the input side of the first gear G1 to the fourth gear G4 may rotate about the first counter shaft 30 connected to the input shaft 10 , and the first gear G1 to the fourth gear G4 may be rotated as an axis. The output side of the gear G4 may rotate around the second counter shaft 60 connected to the output shaft 20 .

한편, 입력 샤프트(10)와 엔진(200) 사이에는 제 1 모터(300)가 결합되고, 출력 샤프트(20)와 차륜(600) 사이에는 제 2 모터(400)가 결합될 수 있다.Meanwhile, the first motor 300 may be coupled between the input shaft 10 and the engine 200 , and the second motor 400 may be coupled between the output shaft 20 and the wheel 600 .

이 때, 제 2 모터(400)와 차륜(600) 사이에는 출력 샤프트(20)로부터 전달되는 동력을 감소시키는 감속 기어(500)가 연결될 수 있다.At this time, a reduction gear 500 for reducing power transmitted from the output shaft 20 may be connected between the second motor 400 and the wheel 600 .

제 1 모터(300)는 도 1에 도시된 기존의 AMT 하이브리드 차량에 장착된 엔진 클러치를 대신하여 차량의 변속과정에서 엔진(200)의 속도와 타겟 기어의 축의 속도를 동기화하기 위해 구비되는 구성일 수 있고, 제 2 모터(400)는 동력의 연속적 전달을 통해 차량의 변속과정에서 발생할 수 있는 동력 단절감을 감소시키기 위한 구성일 수 있다. The first motor 300 is configured to synchronize the speed of the engine 200 and the speed of the axis of the target gear in the shift process of the vehicle instead of the engine clutch mounted in the conventional AMT hybrid vehicle shown in FIG. 1 . In addition, the second motor 400 may be configured to reduce a feeling of power cut that may occur in the shifting process of the vehicle through continuous transmission of power.

이 때, 제 1 모터(300)와 제 2 모터(400)는 하이브리드 차량에 사용되는 전기 모터(electric motor)일 수 있다.In this case, the first motor 300 and the second motor 400 may be electric motors used in a hybrid vehicle.

또한 차량의 후진시 변속기(100)는 후진시 제 2 모터(400)의 역회전으로 후진이 가능할 수 있어 별도의 후진 기어가 요구되지 않는다.In addition, when the vehicle is reversing, the transmission 100 may be reversed by the reverse rotation of the second motor 400 when reversing, so that a separate reverse gear is not required.

본 발명의 일 실시예에 따른 변속기(100)의 변속시, 사용자가 변속하고자 하는 타겟 기어로 변속 레버를 작동시키면, 제 1 모터(300)의 회전에 의해 엔진(200)의 토크가 빠르게 상쇄될 수 있다. When shifting the transmission 100 according to an embodiment of the present invention, when the user operates the shift lever to the target gear to be shifted, the torque of the engine 200 is quickly offset by the rotation of the first motor 300 . can

이 때, 별도의 엔진 클러치 없이 제 1 모터(300)의 회전에 의해 엔진(200)의 토크가 빠르게 상쇄되므로 제 1 모터(300)의 회전에 의해 발생된 에너지를 통해 차량의 배터리(미도시)를 빠르게 충전할 수 있어 추후 회생제동시 회생 제동 효율이 상승될 수 있다.At this time, since the torque of the engine 200 is quickly canceled by the rotation of the first motor 300 without a separate engine clutch, the vehicle's battery (not shown) uses energy generated by the rotation of the first motor 300 . Since the battery can be charged quickly, the regenerative braking efficiency can be increased during regenerative braking in the future.

이후, 현재 설정된 기어에 연결된 싱크로 나이저가 분리되고, 제 2 모터(400)가 회전되면서 제 2 모터(400)의 회전에 의해 엔진(200)으로부터 차륜(600)에 전달되는 동력이 유지될 수 있다. 이 때, 제 2 모터(400)의 회전에 의해 차량은 EV(Electric Vehicle) 모드로 주행될 수 있다.Thereafter, the synchronizer connected to the currently set gear is separated, and as the second motor 400 is rotated, the power transmitted from the engine 200 to the wheel 600 may be maintained by the rotation of the second motor 400 . . In this case, the vehicle may be driven in an electric vehicle (EV) mode by the rotation of the second motor 400 .

제 2 모터(400)의 회전에 의해 차륜(600)에 전달되는 동력을 유지하는 동안, 제 1 모터(300)와 엔진(200)의 회전에 의해 엔진(200) 축과 기어부의 기어(타겟 기어) 중 어느 하나의 축의 속도가 동기화 될 수 있다.While maintaining the power transmitted to the wheel 600 by the rotation of the second motor 400, the gear (target gear) of the engine 200 shaft and the gear unit by the rotation of the first motor 300 and the engine 200 ), the speed of any one axis can be synchronized.

이후, 타겟 기어에 분리된 싱크로 나이저를 결합하여 타겟 기어로의 변속을 완료할 수 있다.Thereafter, the shift to the target gear may be completed by coupling the separated synchronizer to the target gear.

상기 변속 과정에 대해 예시적으로, 현재 설정된 기어가 제 1 기어(G1)일 때, 사용자가 제 2 기어(G2) 방향으로 변속 레버를 작동시키면 제 1 모터(300)의 회전에 의해 엔진(200)의 토크가 빠르게 상쇄될 수 있다.For the shifting process, when the currently set gear is the first gear G1, when the user operates the shift lever in the direction of the second gear G2, the engine 200 is caused by the rotation of the first motor 300. ) can be quickly canceled out.

이후, 현재 설정된 제 1 기어(G1)에 연결된 제 1 싱크로 나이저(40)가 분리되고, 제 2 모터(400)가 회전되면서 제 2 모터(400)의 회전에 의해 엔진(200)으로부터 차륜(600)에 전달되는 동력이 유지될 수 있다.Thereafter, the first synchronizer 40 connected to the currently set first gear G1 is separated, and the wheel 600 is removed from the engine 200 by the rotation of the second motor 400 while the second motor 400 is rotated. ) can be maintained.

제 2 모터(400)의 회전에 의해 차륜(600)에 전달되는 동력을 유지하는 동안, 제 1 모터(300)와 엔진(200)의 회전에 의해 엔진(200) 축과 제 2 기어(G2) 축의 속도가 동기화 될 수 있다.While maintaining the power transmitted to the wheel 600 by the rotation of the second motor 400, the shaft and the second gear G2 of the engine 200 by the rotation of the first motor 300 and the engine 200 The speed of the axis can be synchronized.

이후, 제 2 기어(G2)에 분리된 제 1 싱크로 나이저(40)를 결합하여 제 2 기어(G2)로의 변속을 완료할 수 있다.Thereafter, the shift to the second gear G2 may be completed by coupling the separated first synchronizer 40 to the second gear G2 .

한편 본 발명의 일 실시예에 따른 변속기(100)는 HEV(Hybrid Electric Vehicle) 모드 또는 EV(Electric Vehicle) 모드로 작동될 수 있다.Meanwhile, the transmission 100 according to an embodiment of the present invention may be operated in a hybrid electric vehicle (HEV) mode or an electric vehicle (EV) mode.

예를 들어 EV 모드에서 HEV 모드로 전환시, 제 1 모터(300)와 엔진(200)의 회전에 의해 엔진(200) 축과 기어부의 기어 중 어느 하나의 축의 속도가 동기화될 수 있다. 이후, 타겟 기어에 분리된 싱크로 나이저를 결합하여 HEV 모드로의 전환을 완료할 수 있다.For example, when switching from the EV mode to the HEV mode, the speed of the shaft of the engine 200 and the speed of any one of the gears of the gear unit may be synchronized by the rotation of the first motor 300 and the engine 200 . Thereafter, the conversion to the HEV mode may be completed by coupling the separated synchronizer to the target gear.

또는 HEV 모드에서 EV 모드로 전환시, 제 1 모터(300)의 회전에 의해 엔진(200)의 토크가 빠르게 상쇄될 수 있다. 이후, 현재 설정된 기어에 연결된 싱크로 나이저가 분리되면서 EV 모드로의 전환을 완료할 수 있다.Alternatively, when switching from the HEV mode to the EV mode, the torque of the engine 200 may be quickly offset by the rotation of the first motor 300 . Thereafter, as the synchronizer connected to the currently set gear is disconnected, the conversion to the EV mode may be completed.

본 발명의 실시예에 따르면 종래 기술에 비해 변속기 동력단절감이 감소되고 회생 제동 효율이 상승될 수 있는 효과가 있다.According to the embodiment of the present invention, there is an effect that the transmission power cut-off is reduced and the regenerative braking efficiency can be increased compared to the prior art.

또한, 종래 기술 대비 후진기어와 엔진 클러치가 요구되지 않으므로 원가가 절감되고 변속기의 중량이 저감되는 효과가 있다.In addition, since the reverse gear and the engine clutch are not required compared to the prior art, the cost is reduced and the weight of the transmission is reduced.

이상의 설명은 본 발명의 기술 사상을 예시적으로 설명한 것에 불과한 것으로서, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 본 발명의 본질적인 특성에서 벗어나지 않는 범위 내에서 다양한 수정, 변경 및 치환이 가능할 것이다. 따라서, 본 발명에 개시된 실시예 및 첨부된 도면들은 본 발명의 기술 사상을 한정하기 위한 것이 아니라 설명하기 위한 것이고, 이러한 실시예 및 첨부된 도면에 의하여 본 발명의 기술 사상의 범위가 한정되는 것은 아니다. 본 발명의 보호 범위는 아래의 청구범위에 의하여 해석되어야 하며, 그와 동등한 범위 내에 있는 모든 기술 사상은 본 발명의 권리범위에 포함되는 것으로 해석되어야 할 것이다.The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions are possible within the range that does not depart from the essential characteristics of the present invention by those of ordinary skill in the art to which the present invention pertains. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are intended to explain, not to limit the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100 : 변속기
10 : 입력 샤프트
20 : 출력 샤프트
30 : 제 1 카운터 샤프트
40 : 제 1 싱크로 나이저
50 : 제 2 싱크로 나이저
60 : 제 2 카운터 샤프트
200 : 엔진
300 : 제 1 모터
400 : 제 2 모터
500 : 감속기어
600 : 차륜
G1 : 제 1 기어
G2 : 제 2 기어
G3 : 제 3 기어
G4 : 제 4 기어100: gearbox
10: input shaft
20: output shaft
30: first counter shaft
40: first synchronizer
50: 2nd synchronizer
60: second counter shaft
200: engine
300: first motor
400: second motor
500: reduction gear
600: wheel
G1: 1st gear
G2: 2nd gear
G3: 3rd gear
G4: 4th gear

Claims (9)

엔진의 출력을 전달받아 회전하는 입력 샤프트;
상기 입력 샤프트에 연결되고 상기 입력 샤프트로부터 전달되는 동력을 선택적으로 출력하는 기어부; 및
상기 기어부로부터 선택적으로 동력을 전달받아 차륜으로 출력하는 출력 샤프트;를 포함하고,
상기 입력 샤프트와 상기 엔진 사이에는 상기 엔진의 속도 동기화를 위한 제 1 모터가 결합되고, 상기 출력 샤프트와 상기 차륜 사이에는 변속시 동력의 연속적 전달을 위한 제 2 모터가 결합되는 것을 특징으로 하는 변속기.an input shaft which receives the output of the engine and rotates;
a gear unit connected to the input shaft and selectively outputting power transmitted from the input shaft; and
and an output shaft selectively receiving power from the gear unit and outputting it to the wheel;
A first motor for synchronizing the speed of the engine is coupled between the input shaft and the engine, and a second motor for continuous transmission of power during shifting is coupled between the output shaft and the wheel. 제 1항에 있어서,
상기 기어부는, 제 1 기어, 제 2 기어, 제 3 기어 및 제 4 기어를 포함하고,
상기 제 1 기어 내지 제 4 기어는 전진 기어인 것을 특징으로 하는 변속기.The method of claim 1,
The gear unit includes a first gear, a second gear, a third gear and a fourth gear,
The first to fourth gears are forward gears. 제 2항에 있어서,
상기 기어부는,
상기 제 1 기어와 상기 제 2 기어 사이에 배치되고 상기 제 1 기어 또는 상기 제 2 기어 중 어느 하나를 선택하여 상기 출력 샤프트와 함께 회전되도록 하는 제 1 싱크로 나이저와,
상기 제 3 기어와 상기 제 4 기어 사이에 배치되고 상기 제 3 기어 또는 상기 제 4 기어 중 어느 하나를 선택하여 상기 출력 샤프트와 함께 회전되도록 하는 제 2 싱크로 나이저를 더 포함하는 것을 특징으로 하는 변속기.3. The method of claim 2,
The gear unit,
a first synchronizer disposed between the first gear and the second gear and configured to rotate with the output shaft by selecting either the first gear or the second gear;
and a second synchronizer disposed between the third gear and the fourth gear and configured to rotate with the output shaft by selecting either the third gear or the fourth gear. 제 1항에 있어서,
상기 제 2 모터와 상기 차륜 사이에는 상기 출력 샤프트로부터 전달되는 동력을 감소시키는 감속 기어가 연결되는 것을 특징으로 하는 변속기. The method of claim 1,
A reduction gear for reducing power transmitted from the output shaft is connected between the second motor and the wheel. 제 2항에 있어서,
상기 기어부는,
상기 입력 샤프트와 연결되고, 상기 제 1 기어 내지 상기 제 4 기어의 입력측에 연결되며 상기 출력 샤프트와 대향되게 배치되는 제 1 카운터 샤프트와,
상기 출력 샤프트와 연결되고, 상기 제 1 기어 내지 상기 제 4 기어의 출력측에 연결되며 상기 입력 샤프트와 대향되게 배치되는 제 2 카운터 샤프트를 더 포함하는 것을 특징으로 하는 변속기. 3. The method of claim 2,
The gear unit,
a first counter shaft connected to the input shaft, connected to an input side of the first gear to the fourth gear, and disposed to face the output shaft;
and a second counter shaft connected to the output shaft, connected to an output side of the first gear to the fourth gear, and disposed opposite to the input shaft. 제 1항에 있어서,
상기 변속기의 변속시,
상기 제 1 모터의 회전에 의해 상기 엔진의 토크가 상쇄되고,
상기 제 2 모터의 회전에 의해 상기 차륜에 전달되는 동력이 유지되면서 상기 제 1 모터와 상기 엔진의 회전에 의해 상기 엔진 축과 상기 기어부의 기어 중 어느 하나가 동기화되는 것을 특징으로 하는 변속기.The method of claim 1,
When shifting the transmission,
The torque of the engine is offset by the rotation of the first motor,
The transmission, characterized in that while maintaining the power transmitted to the wheel by the rotation of the second motor, any one of the engine shaft and the gear of the gear unit is synchronized by the rotation of the first motor and the engine. 제 1항에 있어서,
상기 변속기는 HEV 모드로 작동가능하고,
상기 HEV 모드 작동시, 상기 제 1 모터와 상기 엔진의 회전에 의해 상기 엔진 축과 상기 기어부의 기어 중 어느 하나가 동기화되는 것을 특징으로 하는 변속기.The method of claim 1,
The transmission is operable in HEV mode,
When the HEV mode is operated, any one of the engine shaft and the gear of the gear unit is synchronized by rotation of the first motor and the engine. 제 1항에 있어서,
상기 변속기는 EV 모드로 작동가능하고,
상기 EV 모드 작동시, 상기 제 1 모터의 회전에 의해 상기 엔진의 토크가 상쇄되는 것을 특징으로 하는 변속기. The method of claim 1,
The transmission is operable in EV mode,
When the EV mode is operated, the torque of the engine is offset by the rotation of the first motor. 제 1항에 있어서,
상기 변속기는 후진시 상기 제 2 모터의 역회전으로 후진하는 것을 특징으로 하는 변속기. The method of claim 1,
The transmission is characterized in that the reverse rotation of the second motor when the transmission is reversed.
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