KR20220148436A - Electric Vehicle Power Transmission - Google Patents

Electric Vehicle Power Transmission Download PDF

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Publication number
KR20220148436A
KR20220148436A KR1020210055446A KR20210055446A KR20220148436A KR 20220148436 A KR20220148436 A KR 20220148436A KR 1020210055446 A KR1020210055446 A KR 1020210055446A KR 20210055446 A KR20210055446 A KR 20210055446A KR 20220148436 A KR20220148436 A KR 20220148436A
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South Korea
Prior art keywords
clutch
reduction
planetary gear
differential
power transmission
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KR1020210055446A
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Korean (ko)
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KR102517679B1 (en
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유순기
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유순기
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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
    • B60K17/02—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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • 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
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential 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
    • B60K17/22—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
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/10—Differential gearings with gears having orbital motion with orbital spur gears
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • 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
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/42—Clutches or brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/60—Electric Machines, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/80—Differentials

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

Abstract

The present invention relates to a power transmission device of an electric vehicle, which has two electric motors like a battery receiving external power. The two electric motors are divided into separate first and second electric motors. Provided is the present invention which changes a driving mode into the necessary driving mode.

Description

전기자동차의 동력전달장치{Electric Vehicle Power Transmission}Electric Vehicle Power Transmission

본 발명은, 분리된 2개의 차축에 각각 유성기어형 감속기와 전기모터가 연결되며, 상기 유성기어형 감속기에 차동장치가 연결되어 구동 가능한 전기 자동차의 동력전달장치에 관한 것으로, 이때 각각의 차축은 상기 유성기어형 감속기와 차동장치에 설치된 클러치들을 조절함으로 각기 다른 특징의 동작을 구동할 수 있다. The present invention relates to a power transmission device for an electric vehicle in which a planetary gear reducer and an electric motor are connected to two separate axles, respectively, and a differential device is connected to the planetary gear reducer to drive, wherein each axle is the planetary gear By controlling the clutches installed in the fish reducer and the differential, it is possible to drive the operation of different characteristics.

2륜 이상의 구동륜을 포함하며 토목작업 또는 농업차량으로 통칭 ”작업차“등에 사용될 수 있는 동력전달장치로는 대체로 하나의 큰 모터가 장착되는 경우가 많으나 특허US 6615946 B2호에 공지된 바와 같이 2개의 모터를 사용한 4륜 구동방식으로 구성하는 것도 가능하다. 상기 선행특허와 같은 동력전달장치는 2개의 전기모터를 포함하고, 상기모터들은 주행방향으로 자동차 또는 작업차의 후방 차축 상부에 배치되며, 후방 차축의 앞에 배치된 스퍼 기어와 상호작용한다. As a power transmission device that includes two or more driving wheels and can be used for civil works or agricultural vehicles, commonly referred to as “work vehicles”, one large motor is usually mounted, but as disclosed in Patent US 6615946 B2, two It is also possible to configure a four-wheel drive system using a motor. The power transmission device as in the preceding patent includes two electric motors, the motors being disposed above the rear axle of the vehicle or work vehicle in the traveling direction, and interacting with the spur gears disposed in front of the rear axle.

등록번호 6615946 B2(US)Registration No. 6615946 B2 (US)

상기 언급한 하나의 큰 모터로 구성된 경우 일반 주행이나 지면이 평탄한 경우 문제가 없으나 토목 또는 농업에 사용되는 작업차로서 사용되는 환경이 대체로 험난할 경우가 많아 각각의 경우에 활용할 수 있는 기어 단을 갖추며 이에 따른 다양한 기어 비를 갖춘 감속기가 추가로 요구되며, 또한 차동잠금장치, 차동해제장치 등이 추가로 요구되지만 이러한 요구 조건을 갖추기 어려운 것이 현실이다. 이러한 문제의 대체 방법으로 상기 선행특허1과 같이 2개의 모터를 사용하는 방법이 있으나 2개의 모터를 사용함으로써 발생할 수 있는 동기화 문제, 차동잠금, 차동해제장치의 설치 등이 원활하지 않은 문제가 있으며, 또한 위 문제를 해결하기 위해 클러치를 사용하지만 2개의 모터에 대응되는 클러치의 수가 많아진다는 점 또한 문제가 될 수 있다. 이러한 문제점들을 해소하기 위해 2개의 모터를 사용하되 차동잠금, 차동해제장치를 포함하며, 최소한의 클러치로, 작업차등이 사용되는 환경에 따라 원활히 단독모터주행, 듀얼 모터주행과 같이 상이한 주행 상황들에서 특히 양호한 효율로 주행 가능한 동력전달장치를 제공하는 것을 본원발명의 목적으로 한다. If it is composed of one large motor mentioned above, there is no problem in general driving or when the ground is flat, but the environment used as a work vehicle used in civil engineering or agriculture is usually difficult, so it has a gear stage that can be utilized in each case. Accordingly, a reduction gear having various gear ratios is additionally required, and a differential locking device and a differential releasing device are additionally required, but it is difficult to meet these requirements. As an alternative method to this problem, there is a method of using two motors as in the preceding patent 1, but there are problems such as synchronization problems that may occur by using two motors, and the installation of differential lock and differential release devices are not smooth, In addition, although a clutch is used to solve the above problem, the fact that the number of clutches corresponding to two motors increases may also be a problem. In order to solve these problems, two motors are used, but with a differential lock and differential release device, and with a minimum clutch, depending on the environment where the work differential is used, it can be operated smoothly in different driving situations such as single motor driving and dual motor driving. It is an object of the present invention to provide a power transmission device capable of running with particularly good efficiency.

배터리와 같이 외부 전력은 전달 받는 2개의 전기모터가 구비된 동력전달장치에 있어서, 2개의 전기모터는 별도의 제1전기모터와 제2전기모터로 구분된다. 상기 제1전기모터는 제1감속기어클러치를 통해 동력전달 가능하게 제1유성기어감속기와 연결되어 상호작용하고, 제2전기모터는 동력전달 가능하게 형성된 제2감속기어클러치와 제3감속기어클러치의 동작을 통해 제2유성기어감속기와 연결되어 상호작용한다. 상기 제1유성기어감속기와 제2유성기어감속기는 유성기어 형태로 구성되며 링 기어 외측에 외치기어가 형성된 형태로 구성되어있다. 또한 상기 제1유성기어감속기의 일측에는 상기 제1감속기어클러치가 연결되어있고, 타측에는 제1유성기어감속기에서 감속된 동력을 전달받아 구동륜에 전달하는 차축이 형성되어있다. 동일하게 상기 제2유성기어감속기의 일측에는 제3감속기어클러치가 형성되어있고, 타측에는 제2유성기어감속기에서 감속된 동력을 전달받아 구동륜에 전달하는 차축이 형성되어있다. 상기와 같은 구성에서 제1전기모터와 제2전기모터를 기준으로 분리된 차축은 차동장치를 통해 각 차축의 구동에 대한 동기화를 진행하며, 상기 차동장치는 상기 제1유성기어감속기와 제2유성기어감속기의 링 기어 외측에 형성된 기어에 각각 연결되며, 이때 제1유성기어감속기 또는 제2유성기어감속기와 연결된 기어 중 하나는 아이들 기어를 포함하여 연결된다. 또한 상기 차동장치의 일측에는 열림, 잠금 동작을 수행할 수 있는 차동클러치가 구비되어있다. 내측에 상기 차동장치를 수용할 수 있는 형태로 감속클러치도그는 구비되어있으며 상기 제1감속기어클러치, 제2감속기어클러치, 제3감속기어클러치에 동작에 따라 연결될 수 있도록 형성되어있다. In a power transmission device provided with two electric motors receiving external power, such as a battery, the two electric motors are divided into separate first electric motors and second electric motors. The first electric motor is connected to and interacts with a first planetary gear reducer to enable power transmission through a first reduction gear clutch, and the second electric motor includes a second reduction gear clutch and a third reduction gear clutch configured to transmit power. It is connected to and interacts with the second planetary gear reducer through the operation of The first planetary gear reducer and the second planetary gear reducer are configured in the form of a planetary gear and have an external gear formed outside the ring gear. In addition, the first reduction gear clutch is connected to one side of the first planetary gear reducer, and an axle that receives the power decelerated from the first planetary gear reducer and transmits it to the driving wheels is formed on the other side. Similarly, a third reduction gear clutch is formed on one side of the second planetary gear reducer, and an axle that receives the power decelerated from the second planetary gear reducer and transmits it to the driving wheels is formed on the other side. In the above configuration, the axles separated based on the first electric motor and the second electric motor synchronize the driving of each axle through a differential device, and the differential device includes the first planetary gear reducer and the second planetary gear reducer. Each of the gears is connected to the gears formed outside the ring gear of the gear reducer, and at this time, one of the gears connected to the first planetary gear reducer or the second planetary gear reducer is connected including an idle gear. In addition, a differential clutch capable of performing opening and locking operations is provided on one side of the differential device. A reduction clutch dog is provided inside to accommodate the differential device, and is formed to be connected to the first reduction gear clutch, the second reduction gear clutch, and the third reduction gear clutch according to operation.

상기와 같은 구성으로 본원 발명은 구비되며, 상기 언급한 감속클러치는 도 1, 도 2, 도 3에 도시된 바와 같이 감속클러치도그를 전환함에 따라 제1감속클러치와 제3감속클러치를 동력전달 가능하도록 잠그거나, 제2감속클러치와 제3감속클러치를 동력전달 가능하도록 잠그거나, 제2감속클러치 단독으로 잠그는 동작을 수행할 수 있고 이에 따라 필요한 주행모드를 변경할 수 있도록 본 발명은 구비된다. The present invention is provided with the configuration as described above, and the aforementioned reduction clutch can transmit power to the first reduction clutch and the third reduction clutch by switching the reduction clutch dog as shown in FIGS. 1, 2 and 3 . The present invention is provided so that an operation of locking the second reduction clutch and the third reduction clutch so as to be able to transmit power or locking the second reduction clutch alone can be performed, and thus the required driving mode can be changed accordingly.

2개의 전기모터와 상기 전기모터에 각자 배속된 2개의 감속기 및 2개의 클러치와 상기 2개의 감속기를 이어주는 차동장치로 구비되는 본원 발명의 동력전달장치는 상기 2개의 전기모터 중 제1전기모터만 구동하여 상기 2개의 감속기에 동력을 전달할 수 있으며 이는 2개의 감속기에 연결된 차축 즉 구동륜을 기동할 수 있음을 의미한다. 또한 하나의 감속클러치를 조절하는 것으로 상기 제1전기모터, 제2전기모터를 동시에 구동하여 각자의 감속기에 할당된 구동륜을 독립적으로 구동하되 상기 감속기에 연결된 차동장치가 양측의 회전을 조절해 주기 때문에 별도의 동기화 제어장치 없이도 2개의 전기모터를 안정적으로 구동할 수 있다. 이는 모터의 큰 힘이 요구되지 않는 일반 주행에서 제1전기모터를 단독으로 구동하여 주행하고, 차체를 움직이거나 오르막을 오르는 등 일시적으로 큰 힘이 요구될 때는 2개의 전기모터를 모두 구동하는 등의 동작이 가능하다는 의미이다. 즉 적정한 힘을 적정한 시기에 사용할 수 있기 때문에 전기모터의 용량 즉 크기가 오르막을 기준으로 설계되는 것과 반대로 주행에 맞춰 구비될 수 있음을 의미하는 것이고 이는 제작원가에 큰 의미를 부여한다. 또한 상기 2개의 클러치를 조정함으로 상기 언급한 1개의 전기모터 단독사용 2개의 전기모터를 함께 사용하는 주행모드의 차이뿐만 아니라 별도의 장치 없이 차동 잠금, 차동 해제가 가능하기 때문에 농업, 토목용 작업차의 쓰임새뿐만 아니라 그 활용도와 쓰임세가 무궁하고 다양하며, 상기와 같은 특징과 이점을 가지면서 인-힐 타입 동력전달장치와 같이 구동륜 측에 각 요소를 모두 구성하여 구동륜과 구동륜 사이의 공간을 비워둘 수 있는 설계가 가능하여 그 공간을 배터리, 적재함 등 다른 요소로 활용할 수 있다는 장점과 효과가 있다. The power transmission device of the present invention, which is provided with two electric motors, two speed reducers respectively assigned to the electric motors, and two clutches and a differential device connecting the two speed reducers, drives only the first electric motor among the two electric motors. Thus, power can be transmitted to the two reducers, which means that the axles connected to the two reducers, that is, the driving wheels can be started. In addition, by controlling one reduction clutch, the first electric motor and the second electric motor are simultaneously driven to independently drive the driving wheels assigned to each reduction gear, but a differential device connected to the reduction gear controls the rotation of both sides. Two electric motors can be stably driven without a separate synchronization control device. In general driving where large motor power is not required, the first electric motor is driven alone, and when large power is temporarily required, such as moving the vehicle body or climbing an uphill, both electric motors are driven. It means that action is possible. In other words, since an appropriate force can be used at an appropriate time, it means that the capacity or size of the electric motor can be equipped for driving as opposed to being designed based on an uphill slope, which gives a great meaning to the manufacturing cost. In addition, by adjusting the two clutches, it is possible to lock and release the differential without a separate device as well as the difference in the driving mode of using one electric motor alone and two electric motors together. As well as the use of the vehicle, its utility and usage are endless and diverse, and while having the above features and advantages, each element is configured on the driving wheel side like an in-hill type power transmission system to empty the space between the driving wheel and the driving wheel. It has the advantage and effect that the space can be used for other elements such as batteries and loading boxes because it can be designed to

도 1, 본 발명에서 제공하는 전기자동차 동력전달장치의 감속클러치도그가 제1감속클러치와 제3감속클러치에 연결되어 동력을 전달하는 바람직한 실시예의 개략도이다.
도 2, 본 발명에서 제공하는 전기자동차 동력전달장치의 감속클러치도그가 제2감속클러치와 제3감속클러치에 연결되어 동력을 전달하는 바람직한 실시예의 개략도이다.
도 3, 본 발명에서 제공하는 전기자동차 동력전달장치의 감속클러치도그가 제2감속클러치에 연결되는 바람직한 실시예의 개략도이다.
도 4, 본 발명에서 제공하는 전기자동차 동력전달장치의 타실시예의 감속클러치도그가 제1감속클러치와 제3감속클러치에 연결되어 동력을 전달하는 바람직한 실시예의 개략도이다.
도 5, 본 발명에서 제공하는 타실시예의 감속클러치도그가 제2감속클러치와 제3감속클러치에 연결되어 동력을 전달하는 바람직한 실시예의 개략도이다.
도 6, 본 발명에서 제공하는 타실시예의 감속클러치도그가 제2감속클러치에 연결되는 바람직한 실시예의 개략도이다.
도 7, 본 발명에서 제공하는 실시예의 주행 모드에 따른 모터 및 클러치 요소들의 동작을 설명한 설명도이다.1, a schematic diagram of a preferred embodiment in which the reduction clutch dog of the electric vehicle power transmission device provided by the present invention is connected to the first reduction clutch and the third reduction clutch to transmit power.
2 is a schematic diagram of a preferred embodiment in which the reduction clutch dog of the electric vehicle power transmission device provided by the present invention is connected to the second reduction clutch and the third reduction clutch to transmit power.
3 is a schematic diagram of a preferred embodiment in which the reduction clutch dog of the electric vehicle power transmission device provided by the present invention is connected to the second reduction clutch.
4 is a schematic diagram of a preferred embodiment in which the reduction clutch dog of another embodiment of the electric vehicle power transmission device provided by the present invention is connected to the first reduction clutch and the third reduction clutch to transmit power.
5, a schematic diagram of a preferred embodiment in which the reduction clutch dog of another embodiment provided by the present invention is connected to the second reduction clutch and the third reduction clutch to transmit power.
6 is a schematic diagram of a preferred embodiment in which the reduction clutch dog of another embodiment provided by the present invention is connected to the second reduction clutch.
7 is an explanatory view for explaining the operation of the motor and clutch elements according to the driving mode of the embodiment provided by the present invention.

이하 본 발명의 목적이 구체적으로 실현될 수 있는 전기자동차 동력전달장치에 대한 예시적인 실시예 1을 첨부된 도면을 참조하여 설명한다. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an exemplary embodiment 1 of an electric vehicle power transmission apparatus in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings.

도 1에 따른 실시예 1은 자동차 또는 농업, 토목용 작업차등에 구비되는 전기를 주동력으로 동작하는 전기모터가 구비된 동력전달장치가 자동차 또는 작업차의 후방 차축에 할당된 동력전달장치로 도시되며 자동차 또는 작업차의 비구동 전방 차축은 본원 발명의 주가 되지 않는바 생략하도록 한다. Embodiment 1 according to FIG. 1 is shown as a power transmission device in which a power transmission device equipped with an electric motor operating with electricity provided in a vehicle or a work vehicle for agriculture, civil engineering, etc. as a main power is allocated to the rear axle of the vehicle or work vehicle. and the non-driven front axle of the automobile or work vehicle is omitted since it is not the main aspect of the present invention.

전기모터(01, 02)는 제1전기모터(01)와 제2전기모터(02)로 구비되어있으며 배터리와 같이 외부 전력을 전달 받을 수 있도록 구비되어있다. 상기 제1전기모터(01)와 제2전기모터(02)에 구비된 모터 축(04)은 스퍼 기어 또는 헬리컬 기어로 구비된 제1감속기어클러치(10)와 제2감속기어클러치(52)에 각각 연결된다. The electric motors 01 and 02 are provided as a first electric motor 01 and a second electric motor 02, and are provided to receive external power like a battery. The motor shaft 04 provided in the first electric motor 01 and the second electric motor 02 is a first reduction gear clutch 10 and a second reduction gear clutch 52 provided as spur gears or helical gears. are each connected to

상기 제1감속기어클러치(51)는 제1유성기어감속기(20)의 일요소로 제1태양기어(21)와 직결되어 동력을 전달한다. The first reduction gear clutch 51 is an element of the first planetary gear reducer 20 and is directly connected to the first sun gear 21 to transmit power.

상기 제2감속기어클러치(52)는 일측에 제3감속클러치(53)가 형성된 제2유성기어감속기(20)에 지지되어 회전가능하게 설치되며 상기 제3감속클러치(53)가 감속클러치도그(50)의 전환에 따라 연결되어 동력을 전달 할 수 있도록 구비되어있다. The second reduction gear clutch 52 is supported by a second planetary gear reducer 20 having a third reduction clutch 53 formed on one side and is rotatably installed, and the third reduction clutch 53 is a reduction clutch dog ( 50) is connected according to the transition and is equipped to transmit power.

상기 제1감속기어클러치(51)와 직결된 제1태양기어(21)를 포함하는 제1유성기어감속기(20)는 상기 제1태양기어(21)를 포함하며, 제1유성기어(22), 제1링 기어(23)로 구비되어있으며 상기 제1유성기어(22)를 회전 가능하게 지지하는 제1캐리어(26)는 일측에 구동륜(60)을 설치할 수 있는 좌측 차축(05)이 구비되어있다. 또한 상기 제1링 기어(23)는 내측에 제1링 기어 내치기어(24)가 형성되어 있으며 외측에는 제1링 기어 외치기어(25)가 형성되어있다. The first planetary gear reducer 20 including the first sun gear 21 directly connected to the first reduction gear clutch 51 includes the first sun gear 21 , and the first planetary gear 22 . , the first carrier 26 which is provided as a first ring gear 23 and rotatably supports the first planetary gear 22 is provided with a left axle 05 on one side of which a driving wheel 60 can be installed. has been In addition, the first ring gear 23 has a first ring gear internal gear 24 formed on the inside, and a first ring gear external gear 25 is formed on the outside.

제2유성기어감속기(30)는 제2태양기어(31), 제2유성기어(32), 제2링 기어(33)로 구비되어있으며 상기 제2유성기어(32)를 회전 가능하게 지지하는 제2캐리어(36)는 일측에 구동륜(60)을 설치할 수 있는 우측 차축(06)이 구비되어있다. 또한 상기 제2링 기어(33)는 내측에 제2링 기어 내치기어(34)가 형성되어 있으며 외측에는 제2링 기어 외치기어(35)가 형성되어있다. 상기 제2태양기어(31)의 일측에는 제3감속클러치(52)가 직결되어 동력을 전달 할 수 있도록 구비되어있다. The second planetary gear reducer 30 is provided with a second sun gear 31 , a second planet gear 32 , and a second ring gear 33 , and rotatably supports the second planet gear 32 . The second carrier 36 is provided with a right axle 06 on one side of which a driving wheel 60 can be installed. In addition, the second ring gear 33 has a second ring gear internal gear 34 formed on the inner side, and a second ring gear external gear 35 is formed on the outer side. A third reduction clutch 52 is directly connected to one side of the second sun gear 31 to transmit power.

상기와 같이 구비된 유성기어감속기(20, 30)에 있어서, 차동장치(40)는 축 형태로 구비되며 축의 일측이 상기 제2유성기어감속기(30)의 제2링 기어 외치기어(35)와 연결되어 동력을 전달할 수 있도록 구비되어있고, 축의 타측에 제1유성기어감속기(20)의 제1링 기어 외치기어(25)와 아이들기어(42)를 거쳐 연결되어 동력을 전달할 수 있도록 구비되었다. 또한 축의 끝부분에 차동클러치(41)가 구비되어 동작에 따라 차동클러치(41)가 열림 또는 잠금 동작을 수행하여 차동장치(40)가 고정되거나 풀림 상태가 될 수 있도록 동작한다. In the planetary gear reducers 20 and 30 provided as described above, the differential device 40 is provided in the form of a shaft, and one side of the shaft is the second ring gear external gear 35 of the second planetary gear reducer 30 and It is connected to transmit power, and is connected to the other side of the shaft via the first ring gear external gear 25 and the idle gear 42 of the first planetary gear reducer 20 to transmit power. In addition, a differential clutch 41 is provided at the end of the shaft to open or lock the differential clutch 41 according to the operation so that the differential device 40 can be fixed or unlocked.

감속클러치도그(50)는 내측에 상기 차동장치를 수용할 수 있는 형태로 구비되어있으며 상기 제1감속기어클러치, 제2감속기어클러치, 제3감속기어클러치에 동작에 따라 연결될 수 있도록 형성되어있다. The reduction clutch dog 50 is provided in a form that can accommodate the differential device inside, and is formed to be connected to the first reduction gear clutch, the second reduction gear clutch, and the third reduction gear clutch according to the operation. .

상기 설명 중 제1감속기어클러치(51), 제2감속기어클러치(52), 제3감속기어클러치(53)의 동력 전달 형태 및 차동장치(40)의 아이들기어(42) 배치의 차이점 외에 유성기어감속기(20, 30), 감속기어클러치(51, 52, 53), 차동장치(40)는 차량의 종축에 대해 거울 대칭형으로 배치되고 동일하게 형성된다. 따라서 상기 요소들은 동일한 감속비를 갖는다. In the above description, in addition to the difference in the power transmission form of the first reduction gear clutch 51, the second reduction gear clutch 52, and the third reduction gear clutch 53, and the arrangement of the idle gear 42 of the differential device 40, the planetary The gear reducers 20 and 30, the reduction gear clutches 51, 52, 53, and the differential device 40 are arranged mirror-symmetrically with respect to the longitudinal axis of the vehicle and are identically formed. Thus, the elements have the same reduction ratio.

상기와 같이 구비된 본 발명에 있어서 동작은 상기 언급된 제1전기모터(01), 제2전기모터(02), 차동클러치(41)와 감속기어클러치(51, 52, 53)의 동작을 조정함으로 단일 모터 주행, 듀얼 모터 주행, 차동잠금, 차동해제 등의 동작을 수행할 수 있고 이하에서 그 동작에 따른 조작을 도면을 참조하여 자세히 설명한다. In the present invention provided as described above, the operation adjusts the operation of the first electric motor 01, the second electric motor 02, the differential clutch 41 and the reduction gear clutch 51, 52, 53 mentioned above. Accordingly, operations such as single motor driving, dual motor driving, differential locking, and differential releasing can be performed, and operations according to the operations will be described in detail below with reference to the drawings.

도 1은 단일 모터 주행시 클러치의 배치와 그에 따른 동력전달 흐름을 나타내고 있다. 1 shows the arrangement of the clutch and the flow of power transmission according to the arrangement of the single motor when driving.

도면에 표시된 것과 같이 감속클러치도그(50)는 제1감속클러치(51)와 제3감속클러치(53)가 동력을 전달 가능하도록 묶여 연결되어있으며, 차동클러치(41)는 풀림상태로 차동장치(40)가 자유롭게 동작할 수 있도록 구비되며, 모터는 제1전기모터(01)만 동작을 하고 있다. 제1전기모터(01)에서 발생한 동력은 제1감속기어클러치(51)를 통해 제1유성기어감속기(20)로 전달되고, 이때 또한 하나로 묶여 연결된 제1감속클러치(51)와 제3감속클러치(53)를 통해 제2유성기어감속기(30)로 동력이 전달된다. 상기 제1유성기어감속기(20)와 제2유성기어감속기(30)에 전달된 동력은 감속되어 좌측 차축(05), 우측 차축(06)에 각각 전달되어 구동륜(60)을 회전시킨다. 이때 양측 유성기어감속기(20, 30)의 지지점은 차동장치(40)가 되고 차체의 회전에 따른 구동륜(60)의 회전수 증감을 차동장치(40)에서 보상한다.As shown in the drawing, the reduction clutch dog 50 is connected so that the first reduction clutch 51 and the third reduction clutch 53 can transmit power, and the differential clutch 41 is released to the differential device ( 40) is provided so that it can operate freely, and only the first electric motor 01 operates as a motor. The power generated from the first electric motor 01 is transmitted to the first planetary gear reducer 20 through the first reduction gear clutch 51, and at this time, the first reduction clutch 51 and the third reduction clutch are also connected as one. Power is transmitted to the second planetary gear reducer 30 through 53 . The power transmitted to the first planetary gear reducer 20 and the second planetary gear reducer 30 is decelerated and transmitted to the left axle 05 and the right axle 06 respectively to rotate the driving wheel 60 . At this time, the supporting points of the both planetary gear reducers 20 and 30 become the differential device 40 , and the differential device 40 compensates for the increase or decrease in the rotation speed of the driving wheel 60 according to the rotation of the vehicle body.

도 2는 듀얼 모터 주행시 클러치의 배치와 그에 따른 동력전달 흐름을 나타내고 있다. 2 shows the arrangement of the clutch and the flow of power transmission according to the arrangement of the dual motor driving.

도면에 표시된 것과 같이 감속클러치도그(50)는 제2감속클러치(52)와 제3감속클러치(53)가 동력을 전달 가능하도록 묶여 연결되어있으며, 차동클러치(41)는 풀림상태로 차동장치(40)가 자유롭게 동작할 수 있도록 구비되며, 모터는 제1전기모터(01)와 제2전기모터(02) 모두 동작하고 있다. 제1전기모터(01)에서 발생한 동력은 제1감속기어클러치(51)를 통해 제1유성기어감속기(20)로 전달되고 제1유성기어감속기(20)에서 감속된 동력을 좌측 차축(05)을 통해 구동륜(60)에 전달한다. 이와 동시에 제2전기모터(02)에서 발생한 동력은 제2감속기어클러치(52)에 전달되고, 제2감속기어클러치(52)와 제3감속기어클러치(53)가 감속기클러치도그(50)로 동력 전달 가능하게 잠겨 제2유성기어감속기(30)로 동력을 전달된다. 제2유성기어감속기(30)에서 감속된 동력은 우측 차축(06)을 통해 구동륜(60)에 전달된다. 이때 제1전기모터(01)와 제2전기모터(02)를 동시에 구동하면서 발생할 수 있는 회전 동기화 문제는 제1유성기어감속기(20)와 제2유성기어감속기(30)에 연결된 차동장치(40)를 통해 해소된다. 마찬가지로 유성기어감속기(20, 30)의 지지점은 차동장치(40)가 되며 차체의 회전에 따른 구동륜(60)의 회전수 증감을 차동장치(40)에서 보상한다.As shown in the drawing, the reduction clutch dog 50 is connected so that the second reduction clutch 52 and the third reduction clutch 53 can transmit power, and the differential clutch 41 is released to the differential device ( 40) is provided so that it can operate freely, and both the first electric motor 01 and the second electric motor 02 are operating. The power generated by the first electric motor 01 is transmitted to the first planetary gear reducer 20 through the first reduction gear clutch 51, and the power decelerated by the first planetary gear reducer 20 is transferred to the left axle 05. is transmitted to the driving wheel 60 through the At the same time, the power generated from the second electric motor 02 is transmitted to the second reduction gear clutch 52 , and the second reduction gear clutch 52 and the third reduction gear clutch 53 are transferred to the reduction gear clutch dog 50 . Power is transmitted to the second planetary gear reducer 30 by locking to enable power transmission. The power decelerated by the second planetary gear reducer 30 is transmitted to the driving wheel 60 through the right axle 06 . At this time, a rotation synchronization problem that may occur while simultaneously driving the first electric motor 01 and the second electric motor 02 is a differential device 40 connected to the first planetary gear reducer 20 and the second planetary gear reducer 30 . ) is resolved through Similarly, the supporting points of the planetary gear reducers 20 and 30 become the differential device 40 , and the differential device 40 compensates for the increase or decrease in the rotation speed of the driving wheel 60 according to the rotation of the vehicle body.

차동해제의 경우 도 7 표 위의 그림에 표시된 것과 같이 전기모터(01, 02)나 유성기어감속기(20, 30)의 영향을 받지 않고 구동축을 자유롭게 만들어 인력으로 차체를 밀거나 움직여야 할 경우 사용하고 이를 위해선 상기 설명한 바와 같이 차축(05, 06)과 전기모터(01, 02)의 연결을 끊어내는 동작이 요구된다. 이러한 동작을 위한 클러치(41, 50)의 배치와 동력 전달 흐름은 도 3에 도시된 것과 같다. 감속클러치도그(50)는 제2감속클러치(52) 단독으로 묶여 있으며, 차동클러치(41)는 풀림 상태이다. 제2전기모터(02)와 동력의 흐름으로 연결된 제2감속기어클러치(52)가 단독으로 묶여있기 때문에 구동륜(60)의 회전에 따라 발생하는 동력은 제2유성기어감속기(30)를 통해 제2전기모터(02)로 전달될 수 없다. 또한 제2전기모터(02)측에서 동력전달이 끊어져있기 때문에 제1유성기어감속기(20)측으로 구동륜(60)을 통해 들어오는 동력 또한 유성기어의 지지점이 제2유성기어감속기(30)측과 연결된 차동장치(40)에 의해 형성되지 않기 때문에 제1유성기어감속기(20)또한 제1전기모터(01) 측으로 동력을 전달하지 못하고 공회전하여 차동해제 상태가 구비된다. In the case of differential release, as shown in the figure above the table of Fig. 7, it is used when the vehicle body needs to be pushed or moved by manpower by making the drive shaft free without being affected by the electric motors (01, 02) or the planetary gear reducers (20, 30). To this end, as described above, the operation of disconnecting the axles 05 and 06 and the electric motors 01 and 02 is required. The arrangement of the clutches 41 and 50 and the flow of power transmission for this operation are as shown in FIG. 3 . The reduction clutch dog 50 is tied to the second reduction clutch 52 alone, and the differential clutch 41 is in the unlocked state. Since the second electric motor 02 and the second reduction gear clutch 52 connected by the flow of power are tied alone, the power generated according to the rotation of the driving wheel 60 is controlled through the second planetary gear reducer 30 . 2Cannot be transmitted to the electric motor (02). In addition, since the power transmission is cut off from the second electric motor 02 side, the power coming in through the driving wheels 60 to the first planetary gear reducer 20 side is also connected to the fulcrum of the planetary gear with the second planetary gear reducer 30 side. Since it is not formed by the differential device 40 , the first planetary gear reducer 20 also does not transmit power to the first electric motor 01 side and idles to provide a differential release state.

차동잠금의 경우 도 7의 표 위 그림에 표시한 것과 같이 바퀴가 진창 등에 빠져 양측 구동축이 차동이 발생하지 않고 움직여야할 때 사용되어지며, 이러한 차동잠금은 상기 설명한 단일 모터 주행과 듀얼 모터 주행의 클러치(41, 50) 배치에서 차동클러치(41)를 풀림에서 잠금 상태로 변경하는 것으로 간단히 수행할 수 있다. 상기 설명한 바와 같이 차동클러치(41)를 잠금 형태로 변경할 경우 제1유성기어감속기(20)와 제2유성기어감속기(30) 사이에 차동장치(40)에 의한 회전보상이 발생하지 않기 때문에 참동잠금 상태가 구비된다. 필요와 상항에 따라 단일 모터 차동잠금, 듀얼 모터 차동잠금을 수행할 수 있다. In the case of differential locking, as shown in the figure above the table of FIG. 7, it is used when the wheels fall into sludge and the drive shafts on both sides need to move without differential occurring. This can be done simply by changing the differential clutch 41 from the unlocked state to the locked state in the (41, 50) arrangement. As described above, when the differential clutch 41 is changed to the locking type, the rotation compensation by the differential device 40 does not occur between the first planetary gear reducer 20 and the second planetary gear reducer 30, so true locking is performed. state is provided. Single-motor differential locking and dual-motor differential locking can be performed according to needs and circumstances.

상기 설명한 단일 모터 일반주행, 듀얼 모터 일반주행, 차동해제, 차동잠금 상태에 따른 클러치(41, 50) 및 전기모터(01, 02)의 상태는 도 7에 도시된 표와 같고 이러한 주행방법이 필요 상황 역시 도 7의 그림에 나타난 것과 같이 큰 짐이 없거나 힘이 필요치 않을 때에는 단일 모터 일반주행 상태로 운행하고, 큰 힘이 필요하거나 초기 주행에 있어 관성이 붙지 않아 차체를 움직임에 있어 다소 큰 힘이 필요할 때에는 듀얼 모터 일반주행으로 관성이 붙을 때 까지 동작한 이후 단일 모터 주행을 하는 것이 효율상 좋으며 장착되는 전기모터(01, 02)의 용량을 줄일 수 있는 장점된다. 또한 차동 잠금이나 차동 해제는 비포장도로에 운행 될 수 있는 농업, 토목용 작업차에 있어서는 필수 조건이라 할 수 있으며 이러한 기능을 별도의 장치 없이 구현할 수 있는 것은 큰 이점이자 특징이라 할 수 있다. The states of the clutches 41 and 50 and the electric motors 01 and 02 according to the single-motor general driving, dual-motor general driving, differential release, and differential lock states described above are as shown in the table shown in FIG. 7, and such a driving method is required. As shown in the figure of Fig. 7, when there is no large load or power is not required, the single motor operates in the normal driving state, and a large force is required or there is no inertia in the initial driving, so a rather large force is needed to move the vehicle body. When necessary, it is better to run a single motor after operating until inertia is achieved with dual motor normal driving for efficiency and to reduce the capacity of the installed electric motors (01, 02). In addition, differential locking or differential unlocking is an essential condition for agricultural and civil engineering work vehicles that can be operated on unpaved roads.

이하에서는 상기 실시예 1과 동력전달은 동일하되 차동장치(40)와 감속클러치도그(50)의 형태가 달라지며 그에 따른 특징을 가지는 실시예 2에 대해 설명한다. Hereinafter, Embodiment 2, which has the same power transmission as that of Embodiment 1, except that the shape of the differential device 40 and the reduction clutch dog 50 is different and has corresponding characteristics, will be described.

도 4에 따른 실시예 2에는 전기모터가 구비된 동력전달장치가 자동차 또는 작업차의 후방 차축에 할당된 동력전달장치로 도시되며 자동차 또는 작업차의 비구동 전방 차축은 본원 발명의 주가 되지 않는바 생략하도록 한다. In Example 2 according to FIG. 4, a power transmission device equipped with an electric motor is shown as a power transmission device allocated to a rear axle of a vehicle or a work vehicle, and a non-driven front axle of the vehicle or work vehicle is not a main aspect of the present invention. to be omitted.

전기모터(01, 02)는 제1전기모터(01)와 제2전기모터(02)로 구비되어있으며 배터리와 같이 외부 전력을 전달 받을 수 있도록 구비되어있다. 상기 제1전기모터(01)와 제2전기모터(02)에 구비된 모터 축(04)은 스퍼 기어 또는 헬리컬 기어로 구비된 제1감속기어클러치(10)와 제2감속기어클러치(52)에 각각 연결된다. The electric motors 01 and 02 are provided as a first electric motor 01 and a second electric motor 02, and are provided to receive external power like a battery. The motor shaft 04 provided in the first electric motor 01 and the second electric motor 02 is a first reduction gear clutch 10 and a second reduction gear clutch 52 provided as spur gears or helical gears. are each connected to

상기 제1감속기어클러치(51)는 제1유성기어감속기(20)의 일요소로 제1태양기어(21)와 직결되어 동력을 전달한다. The first reduction gear clutch 51 is an element of the first planetary gear reducer 20 and is directly connected to the first sun gear 21 to transmit power.

상기 제2감속기어클러치(52)는 일측에 제3감속클러치(53)가 형성된 제2유성기어감속기(20)에 지지되어 회전가능하게 설치되며 상기 제3감속클러치(53)가 감속클러치도그(50)의 전환에 따라 연결되어 동력을 전달 할 수 있도록 구비되어있다. The second reduction gear clutch 52 is supported by a second planetary gear reducer 20 having a third reduction clutch 53 formed on one side and is rotatably installed, and the third reduction clutch 53 is a reduction clutch dog ( 50) is connected according to the transition and is equipped to transmit power.

상기 제1감속기어클러치(51)와 직결된 제1태양기어(21)를 포함하는 제1유성기어감속기(20)는 상기 제1태양기어(21)를 포함하며, 제1유성기어(22), 제1링 기어(23)로 구비되어있으며 상기 제1유성기어(22)를 회전 가능하게 지지하는 제1캐리어(26)는 일측에 구동륜(60)을 설치할 수 있는 좌측 차축(05)이 구비되어있다. 또한 상기 제1링 기어(23)는 내측에 제1링 기어 내치기어(24)가 형성되어 있으며 외측에는 제1링 기어 외치기어(25)가 형성되어있다. The first planetary gear reducer 20 including the first sun gear 21 directly connected to the first reduction gear clutch 51 includes the first sun gear 21 , and the first planetary gear 22 . , the first carrier 26 which is provided as a first ring gear 23 and rotatably supports the first planetary gear 22 is provided with a left axle 05 on one side of which a driving wheel 60 can be installed. has been In addition, the first ring gear 23 has a first ring gear internal gear 24 formed on the inside, and a first ring gear external gear 25 is formed on the outside.

제2유성기어감속기(30)는 제2태양기어(31), 제2유성기어(32), 제2링 기어(33)로 구비되어있으며 상기 제2유성기어(32)를 회전 가능하게 지지하는 제2캐리어(36)는 일측에 구동륜(60)을 설치할 수 있는 우측 차축(06)이 구비되어있다. 또한 상기 제2링 기어(33)는 내측에 제2링 기어 내치기어(34)가 형성되어 있으며 외측에는 제2링 기어 외치기어(35)가 형성되어있다. 상기 제2태양기어(31)의 일측에는 제3감속클러치(52)가 직결되어 동력을 전달 할 수 있도록 구비되어있다. The second planetary gear reducer 30 is provided with a second sun gear 31 , a second planet gear 32 , and a second ring gear 33 , and rotatably supports the second planet gear 32 . The second carrier 36 is provided with a right axle 06 on one side of which a driving wheel 60 can be installed. In addition, the second ring gear 33 has a second ring gear internal gear 34 formed on the inner side, and a second ring gear external gear 35 is formed on the outer side. A third reduction clutch 52 is directly connected to one side of the second sun gear 31 to transmit power.

상기와 같이 구비된 유성기어감속기(20, 30)에 있어서, 차동장치(40)는 중간에 유니버설 조인트와 같이 동력을 전달할 수 있는 관절이 하나 이상 존재하는 축 형태로 구비되며 축의 일측이 상기 제2유성기어감속기(30)의 제2링 기어 외치기어(35)와 연결되어 동력을 전달할 수 있도록 구비되어있고, 축의 타측에 제1유성기어감속기(20)의 제1링 기어 외치기어(25)와 아이들기어(42)를 거쳐 연결되어 동력을 전달할 수 있도록 구비되었다. 또한 축의 끝부분에 차동클러치(41)가 구비되어 동작에 따라 차동클러치(41)가 열림 또는 잠금 동작을 수행하여 차동장치(40)가 고정되거나 풀림 상태가 될 수 있도록 동작한다. In the planetary gear reducers 20 and 30 provided as described above, the differential device 40 is provided in the form of a shaft in which one or more joints capable of transmitting power, such as a universal joint, exist in the middle, and one side of the shaft is the second It is connected to the second ring gear external gear 35 of the planetary gear reducer 30 and is provided to transmit power, and the first ring gear external gear 25 of the first planetary gear reducer 20 on the other side of the shaft and It is connected through the idle gear 42 and provided to transmit power. In addition, a differential clutch 41 is provided at the end of the shaft to open or lock the differential clutch 41 according to the operation so that the differential device 40 can be fixed or unlocked.

감속클러치도그(50)는 중간에 유니버설 조인트와 같이 동력을 전달할 수 있는 관절이 하나 이상 존재하는 축 형태로 구비되어있으며 상기 제1감속기어클러치, 제2감속기어클러치, 제3감속기어클러치에 동작에 따라 연결될 수 있도록 형성되어있다. The reduction clutch dog 50 is provided in the form of a shaft in which one or more joints capable of transmitting power, such as a universal joint, exist in the middle, and is operated by the first reduction gear clutch, the second reduction gear clutch, and the third reduction gear clutch It is formed so that it can be connected according to

상기 설명 중 제1감속기어클러치(51), 제2감속기어클러치(52), 제3감속기어클러치(53)의 동력 전달 형태 및 차동장치(40)의 아이들기어(42) 배치의 차이점 외에 유성기어감속기(20, 30), 감속기어클러치(51, 52, 53), 차동장치(40)는 차량의 종축에 대해 거울 대칭형으로 배치되고 동일하게 형성된다. 따라서 상기 요소들은 동일한 감속비를 갖는다. In the above description, in addition to the difference in the power transmission form of the first reduction gear clutch 51, the second reduction gear clutch 52, and the third reduction gear clutch 53, and the arrangement of the idle gear 42 of the differential device 40, the planetary The gear reducers 20 and 30, the reduction gear clutches 51, 52, 53, and the differential device 40 are arranged mirror-symmetrically with respect to the longitudinal axis of the vehicle and are identically formed. Thus, the elements have the same reduction ratio.

상기와 같이 구비된 실시예 2는 상기 실시예 1과 유성기어감속기(20, 30)의 구조가 다르지 않는 바, 상기 실시예 1에서 설명한 동력전달 방법과 그 방향이 동일하며 그에 따른 단일 모터 주행의 경우 도 4에 도시된 것과 같은 동력의 흐름을 보이며, 이때 감속클러치도그(50)는 도 4에 도시된 것과 같이 제1감속기어클러치(51)와 제3감속기어클러치(53)가 연결되어있고 차동클러치(41)는 풀림 상태이다. The second embodiment provided as described above does not differ in the structure of the planetary gear reducers 20 and 30 from that of the first embodiment. In this case, the flow of power as shown in FIG. 4 is shown, and in this case, the reduction clutch dog 50 is connected to the first reduction gear clutch 51 and the third reduction gear clutch 53 as shown in FIG. The differential clutch 41 is in a disengaged state.

듀얼 모터 주행의 경우 도 5에 도시된 것과 같은 동력의 흐름을 보이며, 이때 감속클러치도그(50)는 제2감속기어클러치(52)와 제3감속기어클러치(53)가 연결되고 차동클러치(41)는 풀림 상태이다. In the case of dual motor driving, the flow of power as shown in FIG. 5 is shown, and in this case, the reduction clutch dog 50 is connected to the second reduction gear clutch 52 and the third reduction gear clutch 53 and the differential clutch 41 ) is the unlocked state.

차동잠금의 경우 상기 단일 모터 주행 또는 듀얼 모터 주행과 감속기어클러치(51, 52, 53)가 연결방법은 동일하되 차동클러치(41)가 잠김상태로, 감속클러치도그(50)의 연결방법에 따라 단일 모터 차동잠금, 듀얼 모터 차동잠금을 수행할 수 있다. In the case of differential locking, the single motor running or dual motor running and the reduction gear clutch 51, 52, 53 are connected in the same way, but with the differential clutch 41 locked, depending on the connection method of the reduction clutch dog 50 Single-motor differential locking and dual-motor differential locking can be performed.

차동해제의 경우 도 6에 도시된 것과 같이 감속클러치도그(50)는 제2감속기어클러치(52)와 단독으로 연결되어있고 차동클러치(41)는 풀림상태이다. In the case of differential release, as shown in FIG. 6 , the reduction clutch dog 50 is connected to the second reduction gear clutch 52 alone, and the differential clutch 41 is in the unlocked state.

상기와 같이 차동클러치(41)와 감속기어클러치(51, 52, 53)를 조정함으로 상시 실시예 1과 동일한 동작 및 장점을 가질 수 있지만 본 실시예 2의 특징적인 부분은 차동장치(40)와 감속클러치도그(50)가 중공축으로 묶여있는 실시예 1에 반해 서로 분리되어 배치되어있으며, 또한 상기 요소의 축에는 유니버설 조인트와 같은 동력전달이 가능한 관절이 배치되어있다. 이는 인휠 타입과 같이 각각의 구동륜(60)에 전기모터(01, 02), 유성기어감속기(20, 30)를 모아서 배치할 때 좌측 차축(05)과 우측 차축(06) 사이의 연결 점은 차동장치(40)와 감속클러치도그(50)로 한정할 수 있다는 말이며 위 요소들이 유니버설 조인트와 같은 동력전달이 가능한 관절을 가짐으로 두 차축(05, 06)이 동일선상에 배치될 필요가 없다는 것을 의미하여 차량 또는 작업차의 서스팬션 등의 설치에 있어 자유롭다는 것을 의미한다. 또한 상기 실시예 2의 차동장치(40)와 감속클러치도그(50)의 동력전달이 가능한 관절 구조는 상기 설명한 장점을 위한 요소이나, 필요나 환경에 따라 동력 전달이 가능한 관절 형태가 아닌 축 형태로 구비되는 것도 가능하며 이는 보편적인 범위내에서 변형이 가능한 것임으로 당연하다 할 수 있다.As described above, by adjusting the differential clutch 41 and the reduction gear clutches 51, 52, 53, the same operation and advantages as those of the first embodiment can always be obtained, but the characteristic part of the second embodiment is the differential device 40 and Contrary to Embodiment 1 in which the reduction clutch dog 50 is tied with a hollow shaft, they are arranged separately from each other, and a joint capable of transmitting power, such as a universal joint, is arranged on the axis of the element. This is like the in-wheel type, when the electric motors 01 and 02 and the planetary gear reducers 20 and 30 are collected and disposed on each driving wheel 60, the connection point between the left axle 05 and the right axle 06 is differential. It means that it can be limited to the device 40 and the reduction clutch dog 50, and since the above elements have a joint capable of transmitting power such as a universal joint, the two axles 05 and 06 do not need to be arranged on the same line. This means that it is free to install suspensions of vehicles or work vehicles. In addition, the joint structure capable of transmitting power of the differential device 40 and the deceleration clutch dog 50 of the second embodiment is an element for the above-described advantages, but depending on the need or environment, the joint structure is not in the form of a joint capable of transmitting power, but in the form of an axis. It is also possible to be provided, and it can be said that it is natural that deformation is possible within a universal range.

본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하고 있으나, 본 발명의 범주에서 벗어나지 않는 한도 내에서 다양한 변형이 가능함은 물론이다. 그럼으로 본 발명의 보호 범위는 실시예에 국한되어 정해져서는 안 되며, 후술하는 청구범위 뿐만 아니라 균등한 것들에 의해 정해져야 한다. In the detailed description of the present invention, although specific embodiments are described, various modifications are possible without departing from the scope of the present invention. Therefore, the protection scope of the present invention should not be limited to the embodiments and should be defined by the claims described below as well as equivalents.

01 : 제1전기모터 02 : 제2전기모터
04 : 모터 축
05 : 좌측 차축 06 : 우측 차축
20 : 제1유성기어감속기 30 : 제2유성기어감속기
21 : 제1태양기어 31 : 제2태양기어
22 : 제1유성기어 32 : 제2유성기어
23 : 제1링 기어 24 : 제1링 기어 내치기어
25 : 제1링 기어 외치기어
33 : 제2링 기어 34 : 제2링 기어 내치기어
35 : 제2링 기어 외치기어
26 : 제1캐리어 36 : 제2캐리어
40 : 차동장치 41 : 차동클러치
42 : 아이들기어
50 : 감속클러치도그 51 : 제1감속기어클러치
52 : 제2감속기어클러치
53 : 제3감속기어클러치
60 : 구동륜01: first electric motor 02: second electric motor
04: motor shaft
05: left axle 06: right axle
20: first planetary gear reducer 30: second planetary gear reducer
21: first sun gear 31: second sun gear
22: first planetary gear 32: second planetary gear
23: first ring gear 24: first ring gear internal gear
25: first ring gear external gear
33: second ring gear 34: second ring gear internal gear
35: second ring gear external gear
26: first carrier 36: second carrier
40: differential device 41: differential clutch
42: idle gear
50: reduction clutch dog 51: first reduction gear clutch
52: second reduction gear clutch
53: third reduction gear clutch
60: drive wheel

Claims (8)

서로 분리된 2개의 차축(05, 06)과 상기 분리된 차축(05, 06)에 연결된 유성기어감속기(20. 30)와 상기 유성기어감속기(20, 30)에 상이한 일측의 부분이 연결된 차동장치(40)와 2개의 전기모터(01. 02)를 포함하는 전기 자동차의 동력전달장치로서, 상기 차축(05, 06)은 하나 이상의 유성기어감속기(20, 30)를 통해 상기 전기모터(01, 02)에 의해 구동될 수 있는, 전기 자동차의 동력전달장치에 있어서,
제1전기모터(01)는 제1감속기어클러치(51)를 통해 제1유성기어감속기(20)와 동력을 전달할 수 있도록 연결되고, 제2전기모터(02)는 제2감속기어클러치(52) 및 제3감속기어클러치(53)를 통해 제2유성기어감속기(30)와 동력을 전달할 수 있도록 연결되며, 상기 전기모터(01, 02)들의 동작에 있어 2개의 차축(05. 06)을 구동하기 위해 제1유성기어감속기(20)와 제2유성기어감속기(30)에 상이한 일측 부분이 연결된 차동장치(40)에 연결된 차동클러치(41)를 풀거나 잠금이 가능하고, 그와 동시에 전환 가능한 감속클러치도그(50)는 제1유성기어감속기(20)와 연결된 제1감속기어클러치(51)와 제2유성기어감속기(30)와 연결된 제3감속기어클러치(52)와 연결 가능하고, 제2전기모터(02)의 동력을 전달 받는 제2감속기어클러치(52)는 제3감속기어클러치(53)와 감속클러치도그(50)로 연결 가능하고, 상기 제2감속기어클러치(52)는 단독으로 감속클러치도그(50)와 연결 가능한 것을 특징으로 하는 전기자동차 동력전달장치.Two axles (05, 06) separated from each other and a planetary gear reducer (20. 30) connected to the separated axles (05, 06) and a differential device in which a different part is connected to the planetary gear reducer (20, 30) A power transmission device for an electric vehicle comprising (40) and two electric motors (01. 02), wherein the axles (05, 06) are connected to the electric motor (01, 01) through one or more planetary gear reducers (20, 30). 02) in the power transmission device of an electric vehicle, which can be driven by
The first electric motor 01 is connected to transmit power to the first planetary gear reducer 20 through the first reduction gear clutch 51 , and the second electric motor 02 is connected to the second reduction gear clutch 52 ) and the third reduction gear clutch 53 are connected to transmit power to the second planetary gear reducer 30 through the two axles (05. 06) in the operation of the electric motors (01, 02). In order to drive, it is possible to unlock or lock the differential clutch 41 connected to the differential device 40 in which a different side part is connected to the first planetary gear reducer 20 and the second planetary gear reducer 30, and to switch at the same time Possible reduction clutch dog 50 can be connected to the first reduction gear clutch 51 connected to the first planetary gear reducer 20 and the third reduction gear clutch 52 connected to the second planetary gear reducer 30, The second reduction gear clutch 52 receiving the power of the second electric motor 02 is connectable to the third reduction gear clutch 53 and the reduction clutch dog 50, and the second reduction gear clutch 52 is an electric vehicle power transmission device, characterized in that it can be connected to the deceleration clutch dog (50) alone. 제1항에 있어서, 상기 차동장치(40)는 제1유성기어감속기(20), 제2유성기어감속기(30)에 상이한 일측 부분이 연결될 수 있도록 구성하되 상기 유성기어감속기(20, 30)에 연결되는 기어의 잇 수는 동일하고, 제1유성기어감속기(20), 제2유성기어감속기(30) 양측 중 일측에 동일한 잇 수의 아이들기어(42)가 배치되는 것을 특징으로 하는 전기자동차 동력전달장치. According to claim 1, wherein the differential device (40) is configured so that different parts can be connected to the first planetary gear reducer (20) and the second planetary gear reducer (30), but to the planetary gear reducer (20, 30) The number of teeth of the connected gears is the same, and the idle gear 42 having the same number of teeth is disposed on one side of both sides of the first planetary gear reducer 20 and the second planetary gear reducer 30 . transmission device. 제2항에 있어서, 상기 감속클러치도그(50)는 내측이 중공으로 형성되어있고, 내측 중공에 상기 차동장치(40)를 수용 가능하여 감속클러치도그(50)와 차동장치(40)가 동일 축선상에 배치되는 것을 특징으로 하는 전기자동차 동력전달장치. The deceleration clutch dog (50) according to claim 2, wherein the reduction clutch dog (50) has a hollow inside, and the differential device (40) can be accommodated in the hollow inside, so that the reduction clutch dog (50) and the differential device (40) are on the same shaft. An electric vehicle power transmission device, characterized in that it is disposed on a ship. 제2항에 있어서, 상기 감속클러치도그(50)는 축의 중간에 하나 이상의 동력전달 가능한 관절이 형성되어있으며, 차동장치(40)는 축의 중간에 하나 이상의 동력전달 가능한 관절이 형성되며, 감속클러치도그(50)와 차동장치(40)는 차축(05, 06)을 중심으로 원주방향으로 배치대되, 서로의 동력전달 가능한 관절이 형성된 축의 움직임에 관섭이 없도록 배치되는 것을 특징으로 하는 전기자동차 동력전달장치. The deceleration clutch dog according to claim 2, wherein the deceleration clutch dog (50) has one or more joints capable of transmitting power in the middle of the shaft, and the differential device (40) has one or more joints capable of transmitting power in the middle of the shaft. (50) and the differential device (40) are arranged in the circumferential direction around the axles (05, 06), electric vehicle power transmission device, characterized in that it is arranged so as not to interfere with the movement of the shaft formed with joints capable of transmitting power to each other . 제3항 또는 제4항 둘 중 어느 한 항에 있어서, 차축(05, 06)은 자동차의 후방(RR) 차축인 것을 특징으로 하는 전기자동차 동력전달장치. 5. The electric vehicle power train according to any one of claims 3 or 4, characterized in that the axle (05, 06) is a rear (RR) axle of the vehicle. 제5항에 있어서, 전기모터(01, 02)는 후방 차축(05, 06)의 인근에 배치되는 것을 특징으로 하는 전기자동차 동력전달장치. The electric vehicle power transmission device according to claim 5, wherein the electric motors (01, 02) are disposed in the vicinity of the rear axles (05, 06). 제3항 또는 제4항에 있어서, 2개의 전기모터(01, 02)와 2개의 클러치(41, 50)는 제어수단을 포함하고, 상기 제어 수단에 의해, 동력전달장치의 프리 상태가 요구 될 때 차동클러치(41)는 풀림 상태이고 감속클러치도그(50)는 제2감속클러치(52)와 단독 연결되고,
제1전기모터(01)가 동작하여 단일 모터 주행시에는 차동클러치(41)는 풀림 상태이고 감속클러치도그(50)는 제1감속클러치(51)와 제3감속클러치(53)가 연결되고,
제1전기모터(01)가 단독 동작하거나 제1전기모터(01) 및 제2전기모터(02)가 동시에 동작하는 단일 또는 듀얼 모터 차동잠금 상태가 요구 될 때는 차동클러치(41)는 잠김 상태이고 감속클러치도그(50)는 제2감속클러치(52)와 제3감속클러치(53)와 연결되고,
제1전기모터(01)와 제2전기모터(02)가 동작하여 듀얼 모터 주행시에는 차동클러치(41)는 풀림 상태이고 감속클러치도그(50)는 제2감속클러치(52)와 제3감속클러치(53)와 연결되는 것을 특징으로 하는 전기자동차 동력전달장치인.5. The power transmission device according to claim 3 or 4, wherein the two electric motors (01, 02) and the two clutches (41, 50) comprise control means, by means of which the free state of the power transmission device is required. When the differential clutch 41 is in the unlocked state and the reduction clutch dog 50 is connected to the second reduction clutch 52 alone,
When the first electric motor 01 is operated and a single motor is driven, the differential clutch 41 is in an unlocked state, and the reduction clutch dog 50 is connected to the first reduction clutch 51 and the third reduction clutch 53,
When a single or dual motor differential lock state in which the first electric motor 01 operates alone or in which the first electric motor 01 and the second electric motor 02 operate simultaneously is required, the differential clutch 41 is in the locked state The reduction clutch dog 50 is connected to the second reduction clutch 52 and the third reduction clutch 53,
When the first electric motor 01 and the second electric motor 02 operate and the dual motor is driven, the differential clutch 41 is in a disengaged state, and the deceleration clutch dog 50 is connected to the second deceleration clutch 52 and the third deceleration clutch. (53), which is an electric vehicle power transmission device, characterized in that connected to. 제7항에 있어서, 유성기어 감속기들(20. 30)은 동일한 감속비를 갖는 것을 특징으로 하는 전기자동차 동력전달장치.
The electric vehicle power transmission device according to claim 7, wherein the planetary gear reducers (20. 30) have the same reduction ratio.
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