KR100774659B1 - Power train of a hybrid vehicle - Google Patents

Power train of a hybrid vehicle Download PDF

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KR100774659B1
KR100774659B1 KR1020060099694A KR20060099694A KR100774659B1 KR 100774659 B1 KR100774659 B1 KR 100774659B1 KR 1020060099694 A KR1020060099694 A KR 1020060099694A KR 20060099694 A KR20060099694 A KR 20060099694A KR 100774659 B1 KR100774659 B1 KR 100774659B1
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South Korea
Prior art keywords
planetary
torque converter
input shaft
clutch
vehicle
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KR1020060099694A
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Korean (ko)
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황경원
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • 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
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • 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
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

A powertrain of hybrid vehicle is provided to prevent the vehicle started on an inclined road from rolling back with relatively small energy by installing a one-way clutch to restrain a sun gear of a planetary gear set from being reversely rotated by a reverse rotating input shaft of a transmission. A powertrain of a hybrid vehicle comprises a torque converter(5) having an impeller connected to an engine(3) through a torque converter case(1), a motor(9) installed between the torque converter and a transmission device(7), an engine clutch(11) connecting or disconnecting a turbine of the torque converter and an input shaft(21) of the transmission device, a planetary gear set(13) having a ring gear connected to a rotor of the motor and a carrier connected to the input shaft of the transmission device, a planetary clutch(15) connecting or disconnecting a ring gear and a carrier of the planetary gear set, a planetary brake(17) regulating a sun gear to be at stationary or rotating, and a one-way clutch(19) restraining the sun gear from being rotated by the reverse rotating input shaft of the transmission device. A controller(25) controls the planetary clutch and the planetary brake. A speed sensor(27) providing the speed of the vehicle and an angle inclination sensor(29) are connected to the controller.

Description

하이브리드 차량의 파워트레인{power train of a hybrid vehicle}Power train of a hybrid vehicle

도 1은 본 발명에 따른 하이브리드 차량의 파워트레인을 도시한 구조도이다.1 is a structural diagram showing a power train of a hybrid vehicle according to the present invention.

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

1; 토크컨버터케이스 3; 엔진One; Torque converter case 3; engine

5; 토크컨버터 7; 변속기구5; Torque converter 7; Gearbox

9; 모터 11; 엔진클러치9; Motor 11; Engine clutch

13; 유성기어세트 15; 유성클러치13; Planetary gearset 15; Planetary Clutch

17; 유성브레이크 21; 입력축17; Planetary brake 21; Input shaft

19; 원웨이클러치 23; 록업클러치19; One-way clutch 23; Lock Up Clutch

25; 컨트롤러 27; 속도센서25; Controller 27; Speed sensor

29; 경사각센서 29; Tilt angle sensor

본 발명은 하이브리드 차량의 파워트레인에 관한 것으로서, 보다 상세하게는 모터와 엔진을 이용한 하이브리드 차량이 등판로에서 정차후 출발시 후방으로 차량이 밀리는 것을 방지하도록 하는 파워트레인의 구조에 관한 기술이다.The present invention relates to a power train of a hybrid vehicle, and more particularly, to a structure of a power train for preventing a vehicle from being pushed rearward after departure from a ramp on a hybrid vehicle using a motor and an engine.

모터와 엔진을 이용한 하이브리드 파워트레인을 탑재한 차량은 정차시에 엔진을 정지시키고, 출발시에 모터에 의해 차량을 출발시켜서 엔진의 공회전에 의한 연료의 낭비를 억제하고 배기가스의 배출을 축소하도록 하는 아이들스톱(idle stop) 기능을 사용하는 경우가 많다.A vehicle equipped with a hybrid powertrain using a motor and an engine stops the engine at the time of stopping and starts the vehicle by the motor at the start so as to suppress waste of fuel due to engine idle and reduce emission of exhaust gas. Idle stop function is often used.

그런데, 상기한 바와 같은 파워트레인을 탑재한 차량이 등판로에 정차했다가 출발하는 경우에, 운전자가 브레이크페달에서 발을 떼고 가속페달을 밟는 사이에 구동륜에는 구동토크가 제공되지 않게 되어 차량이 후방으로 밀리게 되는 경우가 발생한다.However, when the vehicle equipped with the power train as described above stops on the climbing road and starts, the driving wheel is not provided to the driving wheel while the driver takes his foot off the brake pedal and presses the accelerator pedal. It can be pushed back.

상기한 바와 같은 경우에 대비하여, 종래에는 별도의 후방밀림 방지장치를 채용하는 경우가 많은데, 이는 파워트레인의 부품수를 증가시키고 구성을 복잡하게 하며 비용을 증가하게 하는 요인이 되며, 구조에 따라서는 에너지의 소비가 커서 차량의 연비를 저하시키는 원인이 되기도 한다.In contrast to the case described above, there are many cases in which a separate rear anti-rolling device is conventionally employed, which increases the number of parts of the power train, complicates the configuration, and increases the cost, depending on the structure. The large amount of energy consumed also causes the fuel economy of the vehicle to decrease.

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 비교적 간단한 구성으로 하이브리드 차량이 등판로에 정차했다가 출발하는 경우에 비교적 적은 에너지의 소비로 차량이 후방으로 밀리지 않도록 한 하이브리드 차량의 파워트레인을 제공함에 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the power of a hybrid vehicle in which the hybrid vehicle is not pushed to the rear with relatively low energy consumption when the hybrid vehicle stops on the back road with a relatively simple configuration. The purpose is to provide a train.

상기한 바와 같은 목적을 달성하기 위한 본 발명 하이브리드 차량의 파워트 레인은The power lane of the hybrid vehicle of the present invention for achieving the above object is

토크컨버터케이스를 통해 엔진에 연결된 임펠러를 구비한 토크컨버터와;A torque converter having an impeller connected to the engine via a torque converter case;

상기 토크컨버터와 변속기구 사이에 설치된 모터와;A motor installed between the torque converter and the transmission mechanism;

상기 토크컨버터의 터빈과 상기 변속기구의 입력축 사이를 연결 및 차단시킬 수 있도록 구비된 엔진클러치와;An engine clutch provided to connect and block the turbine of the torque converter and the input shaft of the transmission mechanism;

상기 모터의 로터에 링기어가 연결되고 캐리어가 상기 변속기구의 입력축에 연결된 유성기어세트와;A planetary gear set having a ring gear connected to the rotor of the motor and a carrier connected to an input shaft of the transmission mechanism;

상기 유성기어세트의 링기어와 캐리어를 서로 연결 및 차단시킬 수 있도록 설치된 유성클러치와;A planetary clutch installed to connect and block the ring gear and the carrier of the planetary gear set with each other;

상기 유성기어세트의 선기어를 고정된 상태와 회전 가능한 상태로 조절하도록 설치된 유성브레이크와;A planetary brake installed to adjust the sun gear of the planetary gear set to a fixed state and a rotatable state;

상기 변속기구의 입력축이 역회전하는 방향으로는 상기 유성기어세트의 선기어의 회전을 억제하도록 설치된 원웨이클러치;A one-way clutch provided to suppress rotation of the sun gear of the planetary gear set in a direction in which the input shaft of the transmission mechanism reverses;

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

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1을 참조하면, 본 발명 실시예는 토크컨버터케이스(1)를 통해 엔진(3)에 연결된 임펠러를 구비한 토크컨버터(5)와; 상기 토크컨버터(5)와 변속기구(7) 사이에 설치된 모터(9)와; 상기 토크컨버터(5)의 터빈과 상기 변속기구(7)의 입력축 사이를 연결 및 차단시킬 수 있도록 구비된 엔진클러치(11)와; 상기 모터(9)의 로터 에 링기어가 연결되고 캐리어가 상기 변속기구(7)의 입력축에 연결된 유성기어세트(13)와; 상기 유성기어세트(13)의 링기어와 캐리어를 서로 연결 및 차단시킬 수 있도록 설치된 유성클러치(15)와; 상기 유성기어세트(13)의 선기어를 고정된 상태와 회전 가능한 상태로 조절하도록 설치된 유성브레이크(17)와; 상기 변속기구(7)의 입력축(21)이 역회전하는 방향으로는 상기 유성기어세트(13)의 선기어의 회전을 억제하도록 설치된 원웨이클러치(19)를 포함하여 구성된다.1, an embodiment of the present invention includes a torque converter 5 having an impeller connected to an engine 3 through a torque converter case 1; A motor 9 provided between the torque converter 5 and the transmission mechanism 7; An engine clutch (11) provided to connect and disconnect between the turbine of the torque converter (5) and the input shaft of the transmission mechanism (7); A planetary gear set (13) having a ring gear connected to the rotor of the motor (9) and a carrier connected to an input shaft of the transmission mechanism (7); A planetary clutch 15 installed to connect and block the ring gear and the carrier of the planetary gear set 13; A planetary brake (17) installed to adjust the sun gear of the planetary gear set (13) to a fixed state and a rotatable state; It comprises a one-way clutch 19 provided to suppress rotation of the sun gear of the planetary gear set 13 in the direction in which the input shaft 21 of the transmission mechanism 7 reversely rotates.

여기서, 상기 변속기구(7) 입력축(21)의 정회전 방향은 차량이 전진 주행하도록 상기 모터(9) 또는 엔진에서 변속기구(7) 입력축(21)을 구동하는 방향을 말하며, 역회전하는 방향은 그 반대방향을 말하는 바, 차량이 등판로에서 자중에 의해 후방으로 밀리게 되면 역으로 구동륜으로부터 제공되는 회전력에 의해 상기 변속기구(7)의 입력축(21)이 회전하는 방향을 말한다.Here, the forward rotation direction of the transmission mechanism (7) input shaft 21 refers to a direction in which the transmission mechanism (7) input shaft 21 is driven by the motor (9) or the engine so that the vehicle travels forward, and the reverse rotation direction Refers to the opposite direction, the direction in which the input shaft 21 of the transmission mechanism 7 is rotated by the rotational force provided from the drive wheel when the vehicle is pushed backward by its own weight in the climbing road.

상기 토크컨버터(5)의 내부에는 터빈과 토크컨버터케이스(1) 사이에 설치되는 록업클러치(23)가 개략적으로 도시되어 있다.Inside the torque converter 5 is schematically shown a lock-up clutch 23 installed between the turbine and the torque converter case (1).

상기 유성클러치(15)와 유성브레이크(17)를 제어하는 컨트롤러(25)가 구비되어 있으며, 상기 컨트롤러(25)에는 차량의 속도 정보를 제공하는 속도센서(27)와, 차량이 등판로에 있음을 감지하여 전달하는 경사각센서(29)가 연결된 구조이다.The controller 25 is provided to control the planetary clutch 15 and the planetary brake 17. The controller 25 includes a speed sensor 27 for providing speed information of the vehicle, and the vehicle is on a back road. The inclination angle sensor 29 for detecting and transmitting the structure is connected.

물론, 상기 유성클러치(15)와 유성브레이크(17)는 유압식으로 작동될 수도 있으며, 그러한 경우에는 별도의 유압밸브수단을 상기 컨트롤러(25)가 제어하여 간접적으로 상기 유성클러치(15)와 유성브레이크(17)의 작동을 제어할 수 있으며, 이 경우 상기 모터(9)와 엔진의 구동에 무관하게 유압을 발생시킬 수 있는 별도의 전동식유압펌프가 사용되어야 할 것이다.Of course, the planetary clutch 15 and the planetary brake 17 may be hydraulically operated. In this case, the controller 25 controls the separate hydraulic valve means indirectly to the planetary clutch 15 and the planetary brake. It is possible to control the operation of (17), in which case a separate electric hydraulic pump that can generate the hydraulic pressure regardless of the driving of the motor 9 and the engine should be used.

상기한 바와 같이 구성된 파워트레인을 탑재한 차량이 등판로에 정차하면, 상기 컨트롤러(25)는 상기 속도센서(27)와 경사각센서(29)의 신호에 의해 차량이 등판로에 정차했는지를 판단하게 된다. When the vehicle equipped with the power train configured as described above stops on the climbing road, the controller 25 determines whether the vehicle has stopped on the climbing road by the signals of the speed sensor 27 and the inclination angle sensor 29. do.

차량이 등판로에 정차한 경우, 상기 컨트롤러(25)는 상기 유성클러치(15)를 체결하도록 제어하고, 상기 유성브레이크(17)는 해제된 상태를 유지한다.When the vehicle stops on the climbing road, the controller 25 controls the fastening of the planetary clutch 15 and the planetary brake 17 is maintained in a released state.

상기와 같이 유성클러치(15)가 체결되면, 상기 유성기어세트(13)의 링기어와 캐리어가 일체로 연결되므로, 상기 유성기어세트(13)의 각 요소는 서로 잠기게 되어, 유성기어세트(13)는 전체가 하나의 단일체가 되어 회전할 수 있게 된다.When the planetary clutch 15 is fastened as described above, since the ring gear and the carrier of the planetary gear set 13 are integrally connected, each element of the planetary gear set 13 is locked to each other, thereby the planetary gear set ( 13) can be rotated as a single whole as a whole.

상기한 바와 같은 상태에서 운전자가 브레이크페달에서 발을 떼어도 상기 원웨이클러치(19)에 의해 차량은 후방으로 밀리지 않게 된다.In this state, even if the driver takes his foot off the brake pedal, the vehicle is not pushed backward by the one-way clutch 19.

즉, 상기 변속기구(7) 입력축(21)이 구동륜으로부터 제공된 회전력으로 역회전하려고 할 때, 상기 변속기구(7) 입력축(21)과 일체화된 유성기어세트(13)는 상기 선기어가 상기 원웨이클러치(19)에 의해 회전이 억제되어 있어서, 결과적으로 변속기구(7)의 입력축(21)은 물론 구동륜의 회전을 억제하도록 하는 것이다.That is, when the transmission mechanism 7 input shaft 21 tries to reverse rotation with the rotational force provided from the driving wheel, the planetary gear set 13 integrated with the transmission mechanism 7 input shaft 21 has the one-way gear. The rotation is suppressed by the clutch 19, and as a result, the rotation of the driving wheel as well as the input shaft 21 of the transmission mechanism 7 is suppressed.

이때, 상기와 같이 등판로에서 차량의 후방밀림이 방지되도록 하는 데에는 상기 유성클러치(15)만을 체결상태로 유지하면 되므로 에너지의 소비가 작아 연비에 유리하게 된다.At this time, in order to prevent the rear rolling of the vehicle in the climbing road as described above, only the planetary clutch 15 needs to be kept in a fastened state, so the energy consumption is small, which is advantageous for fuel efficiency.

운전자가 가속페달을 밟아 차량을 출발시키면, 상기 컨트롤러(25)는 상기 모터(9)를 구동하면서 상기 유성브레이크(17)를 체결하고 상기 유성클러치(15)를 해제하여, 상기 모터(9)에서 출력된 동력이 상기 링기어로 입력되어 감속된 후 캐리어로 출력되어 상기 변속기구(7) 입력축(21)에 제공되도록 함으로써, 모터(9)에서 출력된 회전력의 토크를 증배하여 차량의 출발 초기에 충분한 구동토크를 제공할 수 있도록 한다.When the driver starts the vehicle by stepping on the accelerator pedal, the controller 25 drives the motor 9 to engage the planetary brake 17 and release the planetary clutch 15 to release the planetary clutch 15. The output power is inputted to the ring gear, decelerated, and then output to the carrier to be provided to the transmission shaft 7 input shaft 21, thereby multiplying the torque of the rotational force output from the motor 9 to at the beginning of the vehicle's departure. Ensure sufficient drive torque is provided.

이상과 같이 본 발명에 의하면, 비교적 간단한 구성으로 하이브리드 차량이 등판로에 정차했다가 출발하는 경우에 비교적 적은 에너지의 소비만으로 차량이 후방으로 밀리지 않도록 함으로써, 운전의 편의성 및 안전성을 경제적으로 향상시킬 수 있도록 한다.As described above, according to the present invention, when the hybrid vehicle stops on the climbing road with a relatively simple configuration and does not start, the vehicle is not pushed backward with relatively little energy consumption, thereby improving economic convenience and safety. Make sure

Claims (2)

토크컨버터케이스를 통해 엔진에 연결된 임펠러를 구비한 토크컨버터와;A torque converter having an impeller connected to the engine via a torque converter case; 상기 토크컨버터와 변속기구 사이에 설치된 모터와;A motor installed between the torque converter and the transmission mechanism; 상기 토크컨버터의 터빈과 상기 변속기구의 입력축 사이를 연결 및 차단시킬 수 있도록 구비된 엔진클러치와;An engine clutch provided to connect and block the turbine of the torque converter and the input shaft of the transmission mechanism; 상기 모터의 로터에 링기어가 연결되고 캐리어가 상기 변속기구의 입력축에 연결된 유성기어세트와;A planetary gear set having a ring gear connected to the rotor of the motor and a carrier connected to an input shaft of the transmission mechanism; 상기 유성기어세트의 링기어와 캐리어를 서로 연결 및 차단시킬 수 있도록 설치된 유성클러치와;A planetary clutch installed to connect and block the ring gear and the carrier of the planetary gear set with each other; 상기 유성기어세트의 선기어를 고정된 상태와 회전 가능한 상태로 조절하도록 설치된 유성브레이크와;A planetary brake installed to adjust the sun gear of the planetary gear set to a fixed state and a rotatable state; 상기 변속기구의 입력축이 역회전하는 방향으로는 상기 유성기어세트의 선기어의 회전을 억제하도록 설치된 원웨이클러치;A one-way clutch provided to suppress rotation of the sun gear of the planetary gear set in a direction in which the input shaft of the transmission mechanism reverses; 를 포함하여 구성된 것을 특징으로 하는 하이브리드 차량의 파워트레인.Power train of a hybrid vehicle, characterized in that configured to include. 청구항 1에 있어서,The method according to claim 1, 상기 유성클러치와 유성브레이크를 제어하는 컨트롤러가 구비되며;A controller for controlling the planetary clutch and the planetary brake; 상기 컨트롤러에는 차량의 속도 정보를 제공하는 속도센서와, 차량이 등판로에 있음을 감지하여 전달하는 경사각센서가 연결된 것The controller is connected to the speed sensor for providing the speed information of the vehicle, and the inclination angle sensor for detecting and transmitting that the vehicle is on the slope road 을 특징으로 하는 하이브리드 차량의 파워트레인.The powertrain of the hybrid vehicle, characterized in that.
KR1020060099694A 2006-10-13 2006-10-13 Power train of a hybrid vehicle KR100774659B1 (en)

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