KR20120050641A - In wheel driven system - Google Patents

In wheel driven system Download PDF

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Publication number
KR20120050641A
KR20120050641A KR1020100111998A KR20100111998A KR20120050641A KR 20120050641 A KR20120050641 A KR 20120050641A KR 1020100111998 A KR1020100111998 A KR 1020100111998A KR 20100111998 A KR20100111998 A KR 20100111998A KR 20120050641 A KR20120050641 A KR 20120050641A
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South Korea
Prior art keywords
primary
motor
planetary
wheel
carrier
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KR1020100111998A
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Korean (ko)
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KR101682249B1 (en
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김동현
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현대모비스 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • 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
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle

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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)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Retarders (AREA)

Abstract

PURPOSE: An in-wheel driving device is provided to increase the efficiency of an in-wheel motor and minimize an in-wheel motor through equalizing a motor shaft and a wheel shaft and conduct high torque and high efficiency through lowering the speed of an in-wheel motor through controlling deceleration ratio during high speed driving. CONSTITUTION: An in-wheel driving device comprises a primary planetary(10), a secondary planetary(20), a caliper(3). The primary planetary decrease the rotation power input by a motor primarily and increases torque power. The secondary planetary is installed in wheel(1) side and has the same axle(K-K) with the primary planetary. The secondary planetary decrease the rotation power input by a motor secondarily and increases torque power. The caliper is installed to control a wheel disk(2) rotated by the secondary planetary.

Description

인휠 구동시스템{In Wheel Driven System} In Wheel Driven System

본 발명은 인휠 구동시스템에 관한 것으로, 특히 2단계 감속비제어로 인휠 모터를 소형화하고 효율도 증대할 수 있는 인휠 구동시스템에 관한 것이다.The present invention relates to an in-wheel drive system, and more particularly, to an in-wheel drive system that can reduce the size of the in-wheel motor and increase the efficiency by two-stage reduction ratio control.

일반적으로 인휠 구동시스템은 휠의 안쪽에서 제동장치와 함께 장착되어진 모터와 감속기를 구비한다.In-wheel drive systems generally have a motor and a reducer mounted with a brake on the inside of the wheel.

상기 인휠 구동시스템은 구동축과 휠축이 불일치하는 감속기타입과 구동축과 휠축이 일치하는 축형 감속기타입으로 구별되며, 상기 구동축과 휠축이 일치하는 축형 감속기타입은 모터와 감속기 및 허브가 동일축상으로 나란히 배열되는 구조가 적용된다.The in-wheel drive system is divided into a reduction gear type in which a drive shaft and a wheel shaft are inconsistent and an axial gear reducer type in which a driving shaft and a wheel shaft coincide with each other. The structure is applied.

그리고, 상기 인휠 구동시스템 중 구동축과 휠축이 일치하는 축형 감속기타입은 드럼브레이크와 함께 적용되는 유성감속기타입과, 캘리퍼와 함께 적용되는 감속기 미적용타입으로 구분된다.In the in-wheel drive system, a shaft type reducer type in which the drive shaft and the wheel shaft coincide is divided into a planetary reducer type applied with a drum brake and a non-reduction type applied with a caliper.

상기 유성감속기타입은 토크증대를 위해 유성기어가 사용되므로 캘리퍼가 들어갈 공간이 없어 드럼브레이크에 적용되고, 감속기 미적용타입은 모터반경을 크게 하여 감속기없이 토크증대를 하므로 캘리퍼의 장착 공간을 확보할 수 있지만 휠사이즈가 커지게 된다.The planetary reducer type is a planetary gear used for torque increase, so there is no space for a caliper to be applied to the drum brake, and the non-reduction type can increase the torque without a reducer to secure the caliper's mounting space. The wheel size becomes larger.

반면, 상기 인휠 구동시스템중 구동축과 휠축이 불일치하는 감속기타입은 토크증대용 감속기어의 적용으로 구동축과 휠축이 서로 불일치되지만 캘리퍼의 장착 공간을 확보할 수 있으며, 감속기어는 토크증대를 위해 카운터기어가 사용된다.On the other hand, the reduction gear type in which the drive shaft and the wheel shaft are inconsistent among the in-wheel drive systems, the drive shaft and the wheel shaft are inconsistent with each other by applying the torque increasing gear, but the caliper mounting space can be secured, and the reduction gear has a counter gear for increasing torque. Used.

상기와 같이 카운터기어가 사용된 감속기는 모터가 작동하지 않을 때에는 모터측에 설치된 클러치의 체결을 해제함으로써 모터 이너시아 분리하여 손실을 줄이게 된다.As described above, when the motor does not operate, the reducer using the counter gear separates the motor inertia to reduce the loss by releasing the engagement of the clutch installed on the motor side.

하지만, 상기 감속기 타입은 2축(구동축과 휠축이 불일치) 감속기 클러치 구조로 감속비 제어장치를 적용하지 않음으로써 고정된 1개의 감속비만 제공할 수밖에 없게 된다.However, the reduction gear type has only two reduction gear ratios by not applying the reduction gear control device in a two-shaft (drive shaft and wheel shaft mismatch) gear reducer clutch structure.

특히, 감속기어로 사용된 카운터기어는 사이즈가 커야 원하는 감속비를 확보할 수 있으므로 휠 사이즈도 함께 커지게 되고, 휠의 사이즈가 커지면 작은 사이즈의 휠을 사용하는 소형차량에선 인휠 구동시스템의 적용성이 크게 낮아질 수밖에 없게 된다.In particular, the counter gear used as a reduction gear has a large size to secure a desired reduction ratio, so that the wheel size is also increased. As the wheel size increases, the in-wheel drive system is highly applicable to a small vehicle using a small wheel. It must be lowered.

또한, 카운터기어를 적용한 감속기는 모터의 구동축과 휠축이 서로 불일치될 수밖에 없고, 이로 인해 주행시 외부에서 감속기로 들어오는 충격으로 기어부의 내구가 취약해질 수밖에 없게 된다.
In addition, the reducer to which the counter gear is applied has to be inconsistent with the drive shaft and the wheel shaft of the motor, and thus, the durability of the gear part is inevitably weakened due to the impact that enters the reducer from the outside during driving.

이에 상기와 같은 점을 감안하여 발명된 본 발명은 허브 일체형 유성기어에 클러치와 브레이크 클러치를 적용해 2단계 감속비 제어를 구현함으로써, 고속 주행시 감속비 제어에 의한 인휠 모터의 저속화로 고효율 고토크를 구현하고 모터구동축과 휠축의 일치로 인휠 모터의 소형화 및 효율을 증대할 수 있는 인휠 구동시스템을 제공하는데 목적이 있다.
Accordingly, the present invention in view of the above point is to implement a two-stage reduction ratio control by applying the clutch and brake clutch to the hub integral planetary gear, to implement a high efficiency high torque by the reduction of the in-wheel motor by the reduction ratio control at high speed driving The purpose of the present invention is to provide an in-wheel driving system that can increase the miniaturization and efficiency of the in-wheel motor by matching the motor driving shaft and the wheel shaft.

상기와 같은 목적을 달성하기 위한 본 발명의 인휠 구동시스템은 제동을 수행하는 캘리퍼를 결합한 휠디스크를 설치한 휠의 축과 동력원인 모터의 모터축이 서로 일치되는 동일선상을 형성하고, 상기 모터의 회전동력을 각각 다르게 감속하고 토크출력을 증배하는 한쌍의 1차 플래너터리와 2차 플래너터리로 이루어진 감속기를 포함한 것을 특징으로 한다.The in-wheel drive system of the present invention for achieving the above object forms a collinear line in which the shaft of the wheel and the motor shaft of the motor as a power source is installed, the wheel of the wheel disk is coupled to the caliper to perform braking, It characterized in that it comprises a reducer consisting of a pair of primary planetary and secondary planetary to decelerate the rotational power differently and multiply the torque output.

상기 1차 플래너터리는 상기 모터로 결합되어 모터의 회전동력을 감속하고 토크출력을 1차 증배하고, 상기 2차 플래너터리는 상기 1차 플래너터리와 서로 일치되는 동일선상으로 이어져 상기 휠축으로 결합되어 상기 1차 플래너터리에서 전달되어진 토크출력을 크기가 다른 2단계의 토크출력으로 2차 증배하게 된다. The primary planetary is coupled to the motor to decelerate the rotational power of the motor and to first multiply the torque output, and the secondary planetary is coupled to the wheel shaft in line with the primary planetary. The torque output transmitted from the primary planetary power is multiplied by two times to the torque outputs having different magnitudes.

상기 1차 플래너터리는 상기 모터의 회전동력을 입력받아 회전되는 1차선기어와, 상기 1차선기어를 통해 회전되어 상기 모터의 회전동력을 1차 감속과 토크출력증배시키는 1차캐리어와, 상기 1차캐리어를 감싼 1차링기어로 구성되며, 상기 2차 플래너터리는 상기 1차캐리어를 통해 회전되는 2차선기어와, 상기 2차선기어를 통해 회전되고 클러치와 클러치브레이크와 선택적 체결을 통해 상기 1차캐리어를 통해 전달된 토크출력을 크기가 다른 2단계의 토크출력으로 2차 증배하는 2차캐리어와, 상기 2차캐리어를 통해 회전되는 2차링기어로 구성되어진다. The primary planetary is a primary lane gear that is rotated by receiving the rotational power of the motor, and the primary carrier is rotated through the primary lane gear to increase the rotational power of the motor primary deceleration and torque output, and the 1 The primary planetary gear is formed around the primary carrier, and the secondary planetary is rotated through the primary carrier, and the secondary primary gear rotates through the secondary lane gear and is selectively engaged with the clutch and the clutch brake. It consists of a secondary carrier for second multiplication of the torque output transmitted through the carrier to the torque output of two stages of different sizes, and a secondary ring gear rotated through the secondary carrier.

상기 2차링기어는 상기 모터의 모터하우징쪽으로 결합되고, 상기 모터하우징과 상기 2차캐리어 사이에는 허브베어링이 구비되어진다.The secondary ring gear is coupled to the motor housing of the motor, and a hub bearing is provided between the motor housing and the secondary carrier.

상기 클러치와 클러치브레이크의 체결 선택은 차량의 주행속도에 따라 결정되어진다.The engagement selection of the clutch and the clutch brake is determined according to the traveling speed of the vehicle.

상기 클러치브레이크에 체결된 상기 2차캐리어의 토크출력증배는 상기 클러치에 체결된 상기 2차캐리어의 토크출력증배에 비해 더 큰 값을 발생시키게 된다.
The torque output multiplication of the secondary carrier fastened to the clutch brake generates a larger value than the torque output multiplication of the secondary carrier fastened to the clutch.

이러한 본 발명의 인휠 구동시스템은 유성기어에 클러치와 브레이크 클러치를 적용한 2단계 감속비 제어로 고속 주행시 휠 토크 증대 및 모터 효율 증대를 통해 차량 성능을 개선할 수 있고, 높은 감속비로 인휠 모터를 소형화 및 경량화 할 수 있는 효과를 갖는다.The in-wheel drive system of the present invention can improve the vehicle performance by increasing the wheel torque and motor efficiency at high speed with the two-stage reduction ratio control by applying the clutch and the brake clutch to the planetary gear, miniaturizing and reducing the in-wheel motor with a high reduction ratio It has an effect that can be done.

또한, 본 발명의 인휠 구동시스템은 허브 일체형 유성기어를 통한 구동축과 휠축의 일치화에 따라 줄어드는 언스프렁 질량(Unsprung Mass)으로 인휠 시스템을 경량화하면서도 차량 내구 및 성능도 향상할 수 있는 효과를 갖는다.In addition, the in-wheel drive system of the present invention has the effect of improving the vehicle durability and performance while reducing the weight of the in-wheel system with the Unsprung Mass, which is reduced by matching the drive shaft and the wheel shaft through the hub integral planetary gear. .

또한, 본 발명의 인휠 구동시스템은 허브 일체형 유성기어와 2차 감속기의 일체화로 부품수량을 줄여 공정수를 감소하고 A/S의 용이성도 확보할 수 있는 효과를 갖는다. In addition, the in-wheel drive system of the present invention has the effect of reducing the number of parts by reducing the number of parts by integrating the hub integral planetary gear and the secondary reducer, it is also possible to ensure the ease of A / S.

또한, 본 발명은 인휠 구동시스템에 소형화 및 경량화된 인휠 모터를 적용함으로써 ASV 시스템의 연계에 의한 수평 자동 주차 기능과 전기식 차량 안정성 제어 기능 등과 같은 운전자 편의성을 크게 향상할 수 있는 효과도 있게 된다.
In addition, the present invention also has the effect of greatly improving the driver's convenience, such as the horizontal automatic parking function and the electric vehicle stability control function by the ASV system by applying a miniaturized and lightweight in-wheel motor to the in-wheel drive system.

도 1은 본 발명에 따른 인휠 구동시스템의 구성도이고, 도 2는 본 발명에 따른 인휠 구동시스템의 작동도이다.1 is a configuration diagram of an in-wheel drive system according to the present invention, Figure 2 is an operation of the in-wheel drive system according to the present invention.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

도 1은 본 실시예에 따른 인휠 구동시스템의 구성도를 나타내며, 도시된 바와 같이 인휠 구동시스템은 휠(1)의 휠축과 모터의 모터축이 서로 일치되는 동일선상(K-K)을 형성하는 1?2차 플래너터리(10,20)로 구성된 2단계 감속기를 갖추고, 제동을 위해 휠디스크(2)를 감싸는 캘리퍼(3)를 적용한 감속기타입 인휠 구동시스템이다.FIG. 1 shows a configuration of the in-wheel drive system according to the present embodiment. As shown in FIG. 1, the in-wheel drive system forms a collinear line KK in which the wheel shaft of the wheel 1 and the motor shaft of the motor coincide with each other. It is a reducer type in-wheel drive system having a two-stage reducer composed of secondary planetary (10, 20) and applying a caliper (3) surrounding the wheel disc (2) for braking.

그러므로, 상기 인휠 구동시스템은 드럼브레이크 대비 향상된 제동성능으로 회생제동에 의한 연비 향상에도 유리하면서도 작은 휠 사이즈로 소형차량에서도 용이하게 장착될 수 있게 된다.Therefore, the in-wheel drive system is advantageous in improving fuel efficiency by regenerative braking with improved braking performance compared to the drum brake, and can be easily mounted in a small vehicle with a small wheel size.

이를 위해, 상기 인휠 구동시스템은 모터로부터 입력된 회전동력을 1차로 감속하고 토크출력을 증배하는 1차 플래너터리(10,Planetary)와, 상기 1차 플래너터리(10)에 동일축(K-K)을 갖고 휠(1)쪽에 결합되어 모터로부터 입력된 회전동력을 2차로 감속하고 토크출력을 증배하는 2차 플래너터리(20)와, 상기 2차 플래너터리(20)를 통해 회전되는 휠디스크(2)를 제동하도록 장착되어진 캘리퍼(3)로 구성된다.To this end, the in-wheel drive system has a primary planetary 10 (Planetary) to decelerate the rotational power input from the motor to the primary and multiply the torque output, and the same axis (KK) to the primary planetary (10) And a secondary planetary 20 coupled to the wheel 1 side to decelerate the rotational power input from the motor secondaryly and multiply the torque output, and the wheel disk 2 rotated through the secondary planetary 20. It consists of a caliper (3) mounted to brake the.

상기 1차 플래너터리(10)는 모터의 로터에 연결된 모터출력축(6)과 함께 회전되는 1차선기어(11)와, 상기 1차선기어(11)와 함께 회전되어 모터의 회전동력을 1차로 감속하고 토크출력을 증배하는 1차캐리어(12)와, 로터(5)의 안쪽공간으로 삽입되고 상기 1차캐리어(12)를 감싼 1차링기어(13)로 구성된다.The primary planetary 10 is rotated together with the primary output gear 6 and the primary output gear 6 connected to the rotor of the motor, and rotates with the primary output gear 11 to reduce the rotational power of the motor to the primary And a primary carrier 12 for increasing the torque output, and a primary ring gear 13 inserted into the inner space of the rotor 5 and surrounding the primary carrier 12.

상기 2차 플래너터리(20)는 1차 플래너터리(10)의 1차캐리어(12)를 통해 회전되는 2차선기어(21)와, 상기 2차선기어(21)를 통해 회전되어 모터의 회전 동력을 2차로 감속하고 토크출력을 증배하는 2차캐리어(22)와, 모터하우징(4)쪽에 결합되어 상기 2차캐리어(22) 통해 회전되는 2차링기어(23)와, 상기 2차캐리어(22)의 회전감속과 토크출력증배를 달리하도록 상기 2차캐리어(22)와 연결되고 해제되는 선택기구로 구성되어진다.The secondary planetary 20 is rotated through the primary gear 12 of the primary planetary gear 10, the secondary lane gear 21, and the secondary lane gear 21 is rotated through the rotational power of the motor The secondary carrier 22 to decelerate into secondary and multiply the torque output, the secondary ring gear 23 coupled to the motor housing 4 and rotated through the secondary carrier 22, and the secondary carrier 22. And a selection mechanism connected to and released from the secondary carrier 22 so as to vary the rotational deceleration and torque output multiplication.

상기 2차캐리어(22)에는 휠디스크(2)가 구비되고, 상기 2차캐리어(22)와 모터하우징(4)사이에는 허브베어링(24)이 구비되어진다.The secondary carrier 22 is provided with a wheel disc 2, and a hub bearing 24 is provided between the secondary carrier 22 and the motor housing 4.

본 실시예에서 상기 선택기구는 1차캐리어(12)의 1차 토크출력을 2차캐리어(22)에서 1차 증래시킨 토크로 출력하도록 체결되는 클러치(26)와, 1차캐리어(12)의 1차 토크출력을 2차캐리어(22)에서 2차 증배시킨 토크로 출력하도록 체결되는 클러치브레이크(25)로 구성되어진다.In the present embodiment, the selection mechanism includes a clutch 26 which is fastened to output the primary torque output of the primary carrier 12 to the torque increased by the primary carrier 22 and the primary carrier 12. It consists of a clutch brake 25 which is fastened so as to output the primary torque output as the torque multiplied by the secondary in the secondary carrier 22.

본 실시예에서 클러치브레이크(25)와 체결된 2차캐리어(22)의 2차 증배시킨 토크출력이란 클러치(26)와 체결된 2차캐리어(22)를 통해 증배되는 토크출력보다 더 큰 값으로 증배된 토크출력을 의미한다.In this embodiment, the second multiplied torque output of the secondary carrier 22 coupled with the clutch brake 25 is greater than the torque output multiplied through the secondary carrier 22 coupled with the clutch 26. It means multiplied torque output.

도 2는 본 실시예에 따른 인휠 구동시스템의 작동도를 나타낸다.2 shows an operation of the in-wheel drive system according to the present embodiment.

도시된 바와 같이, 모터출력축(6)을 통해 모터의 회전동력이 1차 플래너터리(10)로 입력되면, 상기 1차 플래너터리(10)는 모터의 회전동력을 1차 감속하고 증배된 토크출력을 2차 플래너터리(20)로 전달하고, 상기 2차 플래너터리(20)는 클러치브레이크(25)와 클러치(26)의 선택적 결합을 이용해 그 증배정도를 달리한 토크를 출력하게 된다.As shown, when the rotational power of the motor is input to the primary planetary 10 through the motor output shaft (6), the primary planetary 10 decelerates the rotational power of the motor first and multiplied torque output It is delivered to the secondary planetary 20, the secondary planetary 20 is to output the torque of different multiplication by using the selective coupling of the clutch brake 25 and the clutch 26.

즉, 상기 1차 플래너터리(10)는 1차선기어(11)를 통해 1차캐리어(12)가 회전되고, 상기 1차캐리어(12)는 1차선기어(11)로 입력된 모터의 회전동력을 1차로 감속하고 증배된 토크를 출력하게 된다.That is, the primary planetary 10 is the primary carrier 12 is rotated through the primary lane gear 11, the primary carrier 12 is the rotational power of the motor input to the primary lane gear 11 Decelerates to 1st and outputs multiplied torque.

상기 1차 플래너터리(10)의 1차캐리어(12)를 통해 출력된 토크는 2차 플래너터리(20)의 2차선기어(21)로 입력되고, 상기 2차선기어(21)를 통해 2차캐리어(22)가 회전되어진다.Torque output through the primary carrier 12 of the primary planetary 10 is input to the secondary gear 21 of the secondary planetary 20, the secondary via the secondary gear 21 The carrier 22 is rotated.

본 실시예에선 상기 2차캐리어(22)를 통해 출력되는 토크가 달라지는데, 이는 상기 2차캐리어(22)와 선택적으로 체결 또는 해제되는 클러치브레이크(25)와 클러치(26)의 작용을 통해 이루어지게 된다.In this embodiment, the torque output through the secondary carrier 22 is changed, which is achieved through the action of the clutch brake 25 and the clutch 26 selectively engaged with or released from the secondary carrier 22. do.

일례로 2차캐리어(22)와 클러치(26)가 서로 체결되면, 상기 2차캐리어(22)는 2차선기어(21)의 입력을 다시 감속하고 그에 따른 토크출력을 증래시키게 된다.For example, when the secondary carrier 22 and the clutch 26 are fastened to each other, the secondary carrier 22 decelerates the input of the secondary lane gear 21 again and increases the torque output accordingly.

즉, 상기 1차캐리어(12)의 출력이 클러치(26)와 체결된 2차캐리어(22)로 전달되면, 상기 2차캐리어(22)에서는 상기 1차캐리어(12)의 토크출력를 1차 증배된 토크출력을 발생시켜줌으로써, 결과적으로 모터의 회전동력이 1차캐리어(12)를 거치고 클러치(26)와 2차캐리어(22)를 거치면서 크게 증대되어진 토크로서 출력될 수 있게 된다.That is, when the output of the primary carrier 12 is transmitted to the secondary carrier 22 engaged with the clutch 26, the secondary carrier 22 increases the torque output of the primary carrier 12 by the primary. By generating the torque output, as a result, the rotational power of the motor can be output as the torque which is greatly increased while passing through the primary carrier 12 and the clutch 26 and the secondary carrier 22.

또한, 2차캐리어(22)와 클러치브레이크(25)가 서로 체결된 경우도 2차캐리어(22)에선 동일한 작용을 발생시키는데 즉, 상기 1차캐리어(12)의 출력이 클러치브레이크(25)와 체결된 2차캐리어(22)로 전달되면, 상기 2차캐리어(22)에서는 상기 1차캐리어(12)의 토크출력를 2차 증배된 토크출력을 발생시켜줌으로써, 결과적으로 모터의 회전동력이 1차캐리어(12)를 거치고 클러치브레이크(25)와 2차캐리어(22)를 거치면서 더욱 크게 증대되어진 토크로서 출력될 수 있게 된다.In addition, even when the secondary carrier 22 and the clutch brake 25 are fastened to each other, the secondary carrier 22 generates the same action, that is, the output of the primary carrier 12 and the clutch brake 25 When transmitted to the secondary carrier 22 that is fastened, the secondary carrier 22 generates the torque output of the primary carrier 12 which is a second multiplied torque, resulting in the rotational power of the motor being primary. Through the carrier 12 and through the clutch brake 25 and the secondary carrier 22 can be output as a torque that is greatly increased.

상기와 같이 클러치브레이크(25)와 클러치(26)에 체결되는 2차캐리어(22)를 거치면서 다단계로 토크출력이 증배됨으로써, 특히 고속 주행시 상기와 같은 감속비 제어에 의한 인휠 모터의 저속화로 고효율 고토크 운전이 가능할 수 있게 된다.As the torque output is multiplied in multiple stages while passing through the secondary brake 22 fastened to the clutch brake 25 and the clutch 26 as described above, in particular, the high speed and high efficiency of the in-wheel motor are reduced by the reduction ratio control as described above. Torque operation can be enabled.

본 실시예에선 설명된 바와 같이, 모터의 회전을 감속하고 토크출력을 증대하는 1차 플래너터리(10)의 1차선기어(11)와 2차 플래너터리(20)의 2차선기어(21)가 모터축과 휠축을 통해 서로 일치하는 동일축(K-K)을 가짐으로써, 휠(1)의 휠축과 모터축이 서로 일치되는 동일선상(K-K)을 갖는 감속기 타입이면서 캘리퍼를 적용할 수 있는 인휠 구동시스템으로 구성되어진다.As described in the present embodiment, the primary gear 11 of the primary planetary 10 and the secondary gear 21 of the secondary planetary 20 are used to decelerate the rotation of the motor and increase the torque output. In-wheel drive system that has the same axis (KK) through the motor shaft and the wheel shaft, and the caliper can be applied to the reducer type having the same line (KK) that the wheel shaft and the motor shaft of the wheel (1) coincide with each other It consists of.

또한, 상기 1차 플래너터리(10)가 모터쪽으로 내장되고 상기 2차 플래너터리(20)가 휠(1)의 허브쪽으로 일체화됨으로써, 인휠 모터의 소형화 및 효율을 증대할 수 있는 감속기 타입 인휠 구동시스템으로 구성되어진다.
In addition, the reducer-type in-wheel driving system capable of increasing the miniaturization and efficiency of the in-wheel motor by embedding the primary planetary 10 toward the motor and integrating the secondary planetary 20 toward the hub of the wheel 1. It consists of.

1 : 휠 2 : 휠디스크
3 : 캘리퍼 4 : 모터하우징
5 : 로터 6 : 모터출력축
10 : 1차 플래너터리(Planetary)
11 : 1차선기어 12 : 1차캐리어
13 : 1차링기어 20 : 2차 플래너터리(Planetary)
21 : 2차선기어 22 : 2차캐리어
23 : 2차링기어 24 : 허브베어링
25 : 클러치브레이크
26 : 클러치1 wheel 2 wheel disk
3: caliper 4: motor housing
5: rotor 6: motor output shaft
10: Primary Planetary
11: 1st lane gear 12: 1st carrier
13: primary ring gear 20: secondary planetary
21: 2nd lane gear 22: 2nd carrier
23: secondary ring gear 24: hub bearing
25: clutch brake
26: clutch

Claims (6)

제동을 수행하는 캘리퍼를 결합한 휠디스크를 설치한 휠의 축과 동력원인 모터의 모터축이 서로 일치되는 동일선상을 형성하고, 상기 모터의 회전동력을 각각 다르게 감속하고 토크출력을 증배하는 한쌍의 1차 플래너터리와 2차 플래너터리로 이루어진 감속기를 포함한 것을 특징으로 하는 인휠 구동시스템.
A pair of wheels on which a wheel disc with a caliper for braking is installed and a motor shaft of a motor as a power source form a same line, and each of which reduces the rotational power of the motor differently and increases the torque output. In-wheel drive system characterized in that it comprises a reducer consisting of a car planetary and a secondary planetary.
청구항 1에 있어서, 상기 1차 플래너터리는 상기 모터로 결합되어 모터의 회전동력을 감속하고 토크출력을 1차 증배하고, 상기 2차 플래너터리는 상기 1차 플래너터리와 서로 일치되는 동일선상으로 이어져 상기 휠축으로 결합되어 상기 1차 플래너터리에서 전달되어진 토크출력을 크기가 다른 2단계의 토크출력으로 2차 증배하는 것을 특징으로 하는 인휠 구동시스템.
The method according to claim 1, wherein the primary planetary is coupled to the motor to decelerate the rotational power of the motor and increase the torque output first, and the secondary planetary is connected to the same line and coincide with the primary planetary In-wheel drive system characterized in that the second coupled to the wheel shaft and the torque output transmitted from the primary planetary power to the second stage torque output of a different size.
청구항 2에 있어서, 상기 1차 플래너터리는 상기 모터의 회전동력을 입력받아 회전되는 1차선기어와, 상기 1차선기어를 통해 회전되어 상기 모터의 회전동력을 1차 감속과 토크출력증배시키는 1차캐리어와, 상기 1차캐리어를 감싼 1차링기어로 구성되며,
상기 2차 플래너터리는 상기 1차캐리어를 통해 회전되는 2차선기어와, 상기 2차선기어를 통해 회전되고 클러치와 클러치브레이크와 선택적 체결을 통해 상기 1차캐리어를 통해 전달된 토크출력을 크기가 다른 2단계의 토크출력으로 2차 증배하는 2차캐리어와, 상기 2차캐리어를 통해 회전되는 2차링기어로 구성되어진 것을 특징으로 하는 인휠 구동시스템.
The method of claim 2, wherein the primary planetary is rotated by receiving the rotational power of the motor, and the primary rotational gear through the primary gear to rotate the primary power of the motor to reduce the primary speed and increase the torque output A primary ring gear surrounding the carrier and the primary carrier,
The secondary planetary is different in magnitude from the torque output transmitted through the primary carrier through the secondary lane gear that is rotated through the primary carrier and the secondary lane gear and which is selectively engaged with the clutch and the clutch brake. An in-wheel drive system, characterized in that consisting of a secondary carrier to be multiplied by a second stage torque output, and a secondary ring gear rotated through the secondary carrier.
청구항 3에 있어서, 상기 2차링기어는 상기 모터의 모터하우징쪽으로 결합되고, 상기 모터하우징과 상기 2차캐리어 사이에는 허브베어링이 구비되어진 것을 특징으로 하는 인휠 구동시스템.
The in-wheel drive system according to claim 3, wherein the secondary ring gear is coupled to the motor housing of the motor, and a hub bearing is provided between the motor housing and the secondary carrier.
청구항 3에 있어서, 상기 클러치와 클러치브레이크의 체결 선택은 차량의 주행속도에 따라 결정되는 것을 특징으로 하는 인휠 구동시스템.
The in-wheel drive system according to claim 3, wherein the engagement selection of the clutch and the clutch brake is determined according to the traveling speed of the vehicle.
청구항 5에 있어서, 상기 클러치브레이크에 체결된 상기 2차캐리어의 토크출력증배는 상기 클러치에 체결된 상기 2차캐리어의 토크출력증배에 비해 더 큰 값인 것을 특징으로 하는 인휠 구동시스템.
The in-wheel drive system according to claim 5, wherein the torque output multiplication of the secondary carrier fastened to the clutch brake is greater than the torque output multiplication of the secondary carrier fastened to the clutch.
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