KR20200033382A - Continuously variable transmission for vehicle - Google Patents

Continuously variable transmission for vehicle Download PDF

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KR20200033382A
KR20200033382A KR1020180112537A KR20180112537A KR20200033382A KR 20200033382 A KR20200033382 A KR 20200033382A KR 1020180112537 A KR1020180112537 A KR 1020180112537A KR 20180112537 A KR20180112537 A KR 20180112537A KR 20200033382 A KR20200033382 A KR 20200033382A
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South Korea
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unit
input
power
differential gear
vehicle
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KR1020180112537A
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Korean (ko)
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김태준
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현대 파워텍 주식회사
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Publication of KR20200033382A publication Critical patent/KR20200033382A/en

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    • 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
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • 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
    • B60K6/365—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 with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/445—Differential gearing distribution type
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The present invention relates to a continuously variable transmission for a vehicle, including: a differential gear unit; an input unit connected to the differential gear unit to provide power; a planetary gear unit which is always connected to the differential gear unit and is selectively connected to a transmission housing; an additional input unit which is always connected to the planetary gear unit to provide power; and an output unit which is always connected to the differential gear unit to output shifted power. Accordingly, the present invention can provide a transmission for an electric vehicle or a hybrid vehicle.

Description

차량용 연속 가변 변속기{CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE}Continuous variable transmission for vehicles {CONTINUOUSLY VARIABLE TRANSMISSION FOR VEHICLE}

본 발명은 차량용 연속 가변 변속기에 관한 것으로서, 구조를 단순화시켜 동력 손실이 저감되고 비용을 절감할 수 있는 차량용 연속 가변 변속기에 관한 것이다.The present invention relates to a continuously variable transmission for a vehicle, and relates to a continuously variable transmission for a vehicle that can reduce power loss and reduce costs by simplifying the structure.

일반적으로 자동변속기는 복수의 유성기어세트 조합에 의해 구현되며, 토크 컨버터로부터 전달되는 회전동력을 다단으로 자동 변속하여 출력축에 전달하는 기능을 한다.In general, an automatic transmission is implemented by a combination of a plurality of planetary gear sets, and functions to automatically shift the rotational power transmitted from the torque converter in multiple stages and transmit it to the output shaft.

자동변속기는 구현 가능한 변속단이 많을수록 보다 적절한 변속비의 설계가 가능할 뿐만 아니라, 동력성능 및 연비 면에서 우수한 차량을 구현할 수 있기 때문에, 보다 많은 변속단을 구현할 수 있도록 꾸준한 연구가 이루어지고 있다.Since the automatic transmission has more shift stages that can be implemented, it is possible to design a more appropriate shift ratio, and since it can implement a vehicle excellent in terms of power performance and fuel efficiency, steady research has been conducted to implement more shift stages.

자동변속기는 동일 변속단을 구현하더라도 회전요소(선기어, 유성캐리어, 링기어)의 연결구성에 따라 상이한 작동 매커니즘을 갖는다.Even if the automatic transmission implements the same transmission stage, it has a different operation mechanism depending on the connection configuration of the rotating elements (sun gear, planet carrier, ring gear).

한편, 자동변속기는 다수의 변속단을 구현하되, 변속제어 관점에서 이웃하는 변속단으로의 순차 변속시, 하나의 마찰부재를 해제하고 다른 하나의 마찰부재를 작동하는 작동조건을 만족시켜야 한다.On the other hand, the automatic transmission implements a plurality of transmission stages, but must satisfy the operating conditions of releasing one friction member and operating the other friction member during sequential transmission to the adjacent transmission stage from the viewpoint of shift control.

본 발명의 배경기술은 대한민국 공개특허공보 2008-0033789호(2008.04.17 공개, 발명의 명칭 : 차량용 9속 자동 변속기의 기어 트레인)에 개시되어 있다.Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 2008-0033789 (published April 17, 2008, the name of the invention: a gear train of a 9-speed automatic transmission for a vehicle).

본 발명은 구조를 단순화시켜 동력 손실이 저감되고 비용을 절감할 수 있는 차량용 연속 가변 변속기를 제공하는데 그 목적이 있다.An object of the present invention is to provide a continuously variable transmission for a vehicle that can reduce power loss and reduce costs by simplifying the structure.

본 발명에 따른 차량용 연속 가변 변속기는: 차동기어부; 상기 차동기어부에 연결되어 동력을 제공하는 입력부; 상기 차동기어부에 상시 연결되고, 변속기하우징과 선택적으로 연결되는 유성기어부; 상기 유성기어부와 상시 연결되어 동력을 제공하는 추가입력부; 및 상기 차동기어부와 상시 연결되어 변속된 동력을 출력하는 출력부;를 포함하는 것을 특징으로 한다.A continuously variable transmission for a vehicle according to the present invention includes: a differential gear unit; An input unit connected to the differential gear unit to provide power; A planetary gear part constantly connected to the differential gear part and selectively connected to a transmission housing; An additional input unit which is always connected to the planetary gear unit to provide power; And an output unit which is always connected to the differential gear unit to output the shifted power.

상기 입력부는 상기 차동기어부에 상시 연결되어 모터 동력을 제공하는 입력모터부;를 포함하는 것을 특징으로 한다.The input unit is characterized in that it comprises; an input motor unit that is always connected to the differential gear unit to provide motor power.

상기 입력부는 상기 차동기어부와 연결되어 엔진 동력을 제공하는 입력엔진부; 및 상기 입력엔진부의 동력을 상기 차동기어부에 선택적으로 전달하는 입력클러치부;를 더 포함하는 것을 특징으로 한다. The input unit is connected to the differential gear unit input engine unit for providing engine power; And an input clutch part selectively transmitting power of the input engine part to the differential gear part.

상기 유성기어부는 상기 추가입력부와 상시 연결되는 선기어부; 상기 차동기어부와 상시 연결되는 링기어부; 및 상기 선기어부와 상기 링기어부 사이에 배치되고, 브레이크를 통해 선택적으로 상기 변속기하우징과 연결되는 캐리어부;를 포함하는 것을 특징으로 한다.The planetary gear unit is a sun gear unit that is always connected to the additional input unit; A ring gear part constantly connected to the differential gear part; And a carrier part disposed between the sun gear part and the ring gear part and selectively connected to the transmission housing through a brake.

상기 추가입력부는 상기 유성기어부에 모터 동력을 제공하는 것을 특징으로 한다.The additional input unit is characterized in that it provides a motor power to the planetary gear unit.

본 발명에 따른 차량용 연속 가변 변속기는 2개의 모터 동력을 제공하는 입력모터부와 추가입력부를 통해 전기차용 변속기를 제공할 수 있다. 그리고 입력모터부 외에 엔진입력부와 입력클러치부가 포함되면 하이브리드차용 변속기를 제공할 수 있다.The continuously variable transmission for a vehicle according to the present invention can provide a transmission for an electric vehicle through an input motor unit and two additional input units providing two motor powers. In addition, when the engine input unit and the input clutch unit are included in addition to the input motor unit, a transmission for the hybrid vehicle can be provided.

본 발명에 따른 차량용 연속 가변 변속기는 부품이 최소화되고 구조를 단순화시켜 제조비용을 절감할 수 있다.The continuously variable transmission for a vehicle according to the present invention can minimize parts and simplify the structure, thereby reducing manufacturing cost.

도 1은 본 발명의 일 실시예에 따른 차량용 연속 가변 변속기를 개략적으로 나타내는 도면이다.1 is a view schematically showing a continuously variable transmission for a vehicle according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 차량용 연속 가변 변속기의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, an embodiment of a continuously variable transmission for a vehicle according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, definitions of these terms should be made based on the contents throughout this specification.

도 1은 본 발명의 일 실시예에 따른 차량용 연속 가변 변속기를 개략적으로 나타내는 도면이다. 도 1을 참조하면, 본 발명의 일 실시예에 따른 차량용 연속 가변 변속기(1)는 차동기어부(10)와, 입력부(20)와, 유성기어부(30)와, 추가입력부(40)와, 출력부(50)를 포함한다.1 is a view schematically showing a continuously variable transmission for a vehicle according to an embodiment of the present invention. Referring to FIG. 1, a continuously variable transmission 1 for a vehicle according to an embodiment of the present invention includes a differential gear unit 10, an input unit 20, a planetary gear unit 30, an additional input unit 40, It includes an output unit 50.

차동기어부(10)는 차량이 선회할 때 좌우 바퀴에 같은 구동력을 전달하면서 회전차를 주는 기어이다. 이러한 차동기어부(10)는 동력을 좌우 바퀴에 서로 균등하게 분배하지만, 두 바퀴의 기어축 중심이 서로 다른 축의 둘레를 회전하도록 한다. 일 예로, 차동기어부(10)는 입력부(20)와 연결되는 제1기어부(11)와, 제1기어부(11)와 마주보도록 배치되고 유성기어부(30)와 연결되는 제2기어부(12)와, 제1기어부(11) 및 제2기어부(12) 사이에 각각 배치되는 제3기어부(13)를 포함할 수 있다. 제3기어부(13)는 제1기어부(11) 및 제2기어부(12)와 연결되어 회전될 수 있다.The differential gear unit 10 is a gear that provides a rotational vehicle while transmitting the same driving force to the left and right wheels when the vehicle is turning. The differential gear unit 10 distributes power evenly to the left and right wheels, but allows the centers of the gear shafts of the two wheels to rotate around different axes. For example, the differential gear unit 10 includes a first gear unit 11 connected to the input unit 20 and a second gear unit disposed to face the first gear unit 11 and connected to the planetary gear unit 30. 12 and a third gear portion 13 disposed between the first gear portion 11 and the second gear portion 12, respectively. The third gear part 13 may be connected to the first gear part 11 and the second gear part 12 and rotated.

입력부(20)는 차동기어부(10)에 연결되어 동력을 제공한다. 일 예로, 입력부(20)는 제1기어부(11)를 회전시켜 동력을 제공할 수 있다.The input unit 20 is connected to the differential gear unit 10 to provide power. For example, the input unit 20 may provide power by rotating the first gear unit 11.

유성기어부(30)는 차동기어부(10)에 상시 연결되고, 브레이크(B)를 통해 변속기하우징(H)과 선택적으로 연결된다. 일 예로, 유성기어부(30)는 변속기하우징(H)가 연결되어 고정될 수 있다.The planetary gear part 30 is always connected to the differential gear part 10 and is selectively connected to the transmission housing H through the brake B. For example, the planetary gear unit 30 may be fixed by being connected to a transmission housing (H).

추가입력부(40)는 유성기어부(30)와 상시 연결되어 동력을 제공한다. 일 예로, 추가입력부(40)는 차량 주행 상태에 따라 작동되거나 작동 중지될 수 있다. 추가입력부(40)는 전원이 인가되면 유성기어부(30)에 모터 동력을 제공할 수 있다.The additional input unit 40 is always connected to the planetary gear unit 30 to provide power. For example, the additional input unit 40 may be operated or stopped according to a vehicle driving state. The additional input unit 40 may provide motor power to the planetary gear unit 30 when power is applied.

출력부(50)는 차동기어부(10)와 상시 연결되어 변속된 동력을 출력한다. 일 예로, 출력부(50)는 제3기어부(13)와 각각 연결되어 좌우 바퀴에 동력을 전달할 수 있다.The output unit 50 is always connected to the differential gear unit 10 to output the shifted power. For example, the output unit 50 may be respectively connected to the third gear unit 13 to transmit power to the left and right wheels.

본 발명의 일 실시예에 따른 입력부(20)는 입력모터부(21)를 포함한다. 입력모터부(21)는 차동기어부(10)에 상시 연결되어 모터 동력을 제공한다. 일 예로, 입력모터부(21)는 제1기어부(11)에 연결되고 전원이 인가되면 모터가 구동되어 제1기어부(11)를 회전시킬 수 있다. 이와 같이 입력부(20)로 입력모터부(21)가 사용되는 경우, 순수 전기차용 변속기가 될 수 있다.The input unit 20 according to an embodiment of the present invention includes an input motor unit 21. The input motor unit 21 is always connected to the differential gear unit 10 to provide motor power. For example, the input motor unit 21 is connected to the first gear unit 11 and when power is applied, the motor is driven to rotate the first gear unit 11. As described above, when the input motor unit 21 is used as the input unit 20, it may be a transmission for a pure electric vehicle.

본 발명의 일 실시예에 따른 입력부(20)는 입력엔진부(22)와 입력클러치부(23)를 더 포함할 수 있다. 이러한 구성요소는 하이브리드 차량에 적용될 수 있다.The input unit 20 according to an embodiment of the present invention may further include an input engine unit 22 and an input clutch unit 23. These components can be applied to hybrid vehicles.

입력엔진부(22)는 차동기어부(10)와 연결되어 엔진 동력을 제공한다. 일 예로, 입력엔진부(22)는 내연기관을 통해 동력을 생성할 수 있으며, 제1기어부(11)와 연결되어 동력을 제공할 수 있다.The input engine unit 22 is connected to the differential gear unit 10 to provide engine power. For example, the input engine unit 22 may generate power through an internal combustion engine, and may be connected to the first gear unit 11 to provide power.

입력클러치부(23)는 입력엔진부(22)의 동력을 차동기어부(10)에 선택적으로 전달한다. 일 예로, 차량이 순수 모터의 동력으로 구동되도록 하기 위해 입력클러치부(23)는 입력엔진부(22)의 동력을 차동기어부(10)에 전달하지 않을 수 있다. 그리고, 차량이 엔진 동력을 필요할 경우, 입력클러치부(23)는 입력엔진부(22)의 동력을 차동기어부(10)에 전달할 수 있다.The input clutch unit 23 selectively transmits power of the input engine unit 22 to the differential gear unit 10. For example, the input clutch unit 23 may not transmit the power of the input engine unit 22 to the differential gear unit 10 so that the vehicle is driven by the power of the pure motor. In addition, when the vehicle needs engine power, the input clutch unit 23 may transmit power of the input engine unit 22 to the differential gear unit 10.

본 발명의 일 실시예에 따른 유성기어부(30)는 선기어부(31)와, 링기어부(32)와, 캐리어부(33)를 포함한다.The planetary gear part 30 according to an embodiment of the present invention includes a sun gear part 31, a ring gear part 32, and a carrier part 33.

선기어부(31)는 추가입력부(40)와 상시 연결되고, 링기어부(32)는 차동기어부(10)와 상시 연결되며, 캐리어부(33)는 선기어부(31)와 링기어부(32) 사이에 배치된다. 캐리어부(33)는 브레이크(B)를 통해 선택적으로 변속기하우징(H)과 연결된다. 일 예로, 링기어부(32)는 제2기어부(12)와 연결될 수 있다.The sun gear part 31 is always connected to the additional input part 40, the ring gear part 32 is always connected to the differential gear part 10, and the carrier part 33 is the sun gear part 31 and the ring gear part 32 Is placed between. The carrier portion 33 is selectively connected to the transmission housing H through the brake B. For example, the ring gear part 32 may be connected to the second gear part 12.

상기와 같은 구조를 갖는 본 발명의 일 실시예에 따른 차량용 연속 가변 변속기의 작동을 설명하면 다음과 같다.When describing the operation of the continuously variable transmission for a vehicle according to an embodiment of the present invention having the above structure is as follows.

본 발명의 일 실시예에 따른 차량용 연속 가변 변속기(1)가 전기차량에 적용되는 경우 입력모터부(21)가 차동기어부(10)에 연결되어 모터 동력을 제공한다.When the continuously variable transmission 1 for a vehicle according to an embodiment of the present invention is applied to an electric vehicle, the input motor unit 21 is connected to the differential gear unit 10 to provide motor power.

그리고, 본 발명의 일 실시예에 따른 차량용 연속 가변 변속기(1)가 하이브리드차량에 적용되는 경우, 입력모터부(21) 외에 입력엔진부(22)와 입력클러치부(23)가 포함된다. 하이브리드 차량에서 전기모드에서는 입력모터부(21)의 동력만 차동기어부(10)에 제공되고, 엔진모드에서는 입력엔진부(22)의 동력만 차동기어부(10)에 제공된다. 그리고 구동력 증감시 입력모터부(21)와 입력엔진부(22)의 동력이 차동기어부(10)에 제공될 수 있다.In addition, when the continuously variable transmission 1 for a vehicle according to an embodiment of the present invention is applied to a hybrid vehicle, an input engine unit 22 and an input clutch unit 23 are included in addition to the input motor unit 21. In the electric vehicle, in the electric mode, only the power of the input motor unit 21 is provided to the differential gear unit 10, and in the engine mode, only the power of the input engine unit 22 is provided to the differential gear unit 10. In addition, when the driving force increases or decreases, power of the input motor unit 21 and the input engine unit 22 may be provided to the differential gear unit 10.

입력부(20)를 통해 차동기어부(10)가 구동되면, 차동기어부(10)와 연결된 출력부(50)를 통해 좌우 바퀴에 동력이 전달된다.When the differential gear unit 10 is driven through the input unit 20, power is transmitted to the left and right wheels through the output unit 50 connected to the differential gear unit 10.

한편, 차동기어부(10)에는 유성기어부(30)가 연결되고, 추가입력부(40)가 유성기어부(30)에 연결됨으로써, 모터 동력을 제공하는 추가입력부(40)의 제어로 발전 또는 증속이 가능하다.On the other hand, the planetary gear part 30 is connected to the differential gear part 10, and the additional input part 40 is connected to the planetary gear part 30, so that power generation or acceleration is controlled by the control of the additional input part 40 that provides motor power. It is possible.

즉, 감속기어비인 경우 추가입력부(40)의 발전이 가능하고, 가속기어비인 경우 추가입력부(40)의 동력 발생이 필요하다.That is, in the case of the reduction gear ratio, power generation of the additional input unit 40 is possible, and in the case of the acceleration gear ratio, power generation of the additional input unit 40 is required.

감속기어비 일부 영역에서 추가입력부(40)의 구동력에 의한 기어비 구현시의 전력 소모를 보완하기 위해, 추가입력부(40)에 심슨 타입의 기어를 채택하여 발전 영역을 확대할 수 있다. 심슨 타입의 기어에 브레이크가 장착되면 기어비 0.5 영역에서 추가입력부(40)의 구동이 필요하지 않을 수 있다.In order to compensate for power consumption when implementing the gear ratio by the driving force of the additional input unit 40 in some areas of the reduction gear ratio, the power generation region may be expanded by adopting a Simpson type gear in the additional input unit 40. When the brake is mounted on the Simpson type gear, it may not be necessary to drive the additional input unit 40 in the gear ratio 0.5 area.

본 발명의 일 실시예에 따른 차량용 연속 가변 변속기(1)는 2개의 모터 동력을 제공하는 입력모터부(21) 및 추가입력부(40)를 통해 전기차용 변속기를 제공할 수 있다. 그리고 입력모터부(21) 외에 엔진입력부(22)와 입력클러치부(23)가 포함되면 하이브리드차용 변속기를 제공할 수 있다.The continuously variable transmission 1 for a vehicle according to an embodiment of the present invention may provide a transmission for an electric vehicle through an input motor unit 21 and an additional input unit 40 that provide two motor powers. In addition, when the engine input unit 22 and the input clutch unit 23 are included in addition to the input motor unit 21, a transmission for a hybrid vehicle can be provided.

본 발명의 일 실시예에 따른 차량용 연속 가변 변속기(1)는 부품이 최소화되고 구조를 단순화시켜 제조비용을 절감할 수 있다.The continuously variable transmission 1 for a vehicle according to an embodiment of the present invention can minimize parts and simplify the structure to reduce manufacturing cost.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. 따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.The present invention has been described with reference to the embodiment shown in the drawings, but this is merely exemplary, and those skilled in the art to which the art belongs can various modifications and equivalent other embodiments from this. Will understand. Therefore, the true technical protection scope of the present invention should be defined by the claims below.

10 : 차동기어부 20 : 입력부
21 : 입력모터부 22 : 입력엔진부
23 : 입력클러치부 30 : 유성기어부
40 : 추가입력부 50 : 출력부10: differential gear unit 20: input unit
21: input motor unit 22: input engine unit
23: input clutch section 30: planetary gear section
40: additional input unit 50: output unit

Claims (5)

차동기어부;
상기 차동기어부에 연결되어 동력을 제공하는 입력부;
상기 차동기어부에 상시 연결되고, 변속기하우징과 선택적으로 연결되는 유성기어부;
상기 유성기어부와 상시 연결되어 동력을 제공하는 추가입력부; 및
상기 차동기어부와 상시 연결되어 변속된 동력을 출력하는 출력부;를 포함하는 것을 특징으로 하는 차량용 연속 가변 변속기.
Differential gear unit;
An input unit connected to the differential gear unit to provide power;
A planetary gear part constantly connected to the differential gear part and selectively connected to a transmission housing;
An additional input unit which is always connected to the planetary gear unit to provide power; And
A continuously variable transmission for a vehicle, comprising: an output unit which is connected to the differential gear unit and outputs the shifted power at all times.
제 1항에 있어서, 상기 입력부는
상기 차동기어부에 상시 연결되어 모터 동력을 제공하는 입력모터부;를 포함하는 것을 특징으로 하는 차량용 연속 가변 변속기.
The method of claim 1, wherein the input unit
A continuously variable transmission for a vehicle, comprising: an input motor unit which is always connected to the differential gear unit and provides motor power.
제 2항에 있어서, 상기 입력부는
상기 차동기어부와 연결되어 엔진 동력을 제공하는 입력엔진부; 및
상기 입력엔진부의 동력을 상기 차동기어부에 선택적으로 전달하는 입력클러치부;를 더 포함하는 것을 특징으로 하는 차량용 연속 가변 변속기.
The method of claim 2, wherein the input unit
An input engine unit connected to the differential gear unit to provide engine power; And
And an input clutch unit selectively transmitting power of the input engine unit to the differential gear unit.
제 1항에 있어서, 상기 유성기어부는
상기 추가입력부와 상시 연결되는 선기어부;
상기 차동기어부와 상시 연결되는 링기어부; 및
상기 선기어부와 상기 링기어부 사이에 배치되고, 브레이크를 통해 선택적으로 상기 변속기하우징과 연결되는 캐리어부;를 포함하는 것을 특징으로 하는 차량용 연속 가변 변속기.
According to claim 1, wherein the planetary gear portion
A sun gear unit which is always connected to the additional input unit;
A ring gear part constantly connected to the differential gear part; And
And a carrier portion disposed between the sun gear portion and the ring gear portion and selectively connected to the transmission housing through a brake.
제 1항에 있어서,
상기 추가입력부는 상기 유성기어부에 모터 동력을 제공하는 것을 특징으로 하는 것을 특징으로 하는 차량용 연속 가변 변속기.According to claim 1,
The additional input unit is a continuously variable transmission for a vehicle, characterized in that it provides a motor power to the planetary gear unit.
KR1020180112537A 2018-09-20 2018-09-20 Continuously variable transmission for vehicle KR20200033382A (en)

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