KR20130005407A - Electric vehicle 4-wheel driven transfer apparatus - Google Patents

Electric vehicle 4-wheel driven transfer apparatus Download PDF

Info

Publication number
KR20130005407A
KR20130005407A KR1020110066756A KR20110066756A KR20130005407A KR 20130005407 A KR20130005407 A KR 20130005407A KR 1020110066756 A KR1020110066756 A KR 1020110066756A KR 20110066756 A KR20110066756 A KR 20110066756A KR 20130005407 A KR20130005407 A KR 20130005407A
Authority
KR
South Korea
Prior art keywords
motor
wheel drive
planetary gear
electric vehicle
gear train
Prior art date
Application number
KR1020110066756A
Other languages
Korean (ko)
Inventor
강지희
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020110066756A priority Critical patent/KR20130005407A/en
Priority to CN201210233171XA priority patent/CN102862477A/en
Publication of KR20130005407A publication Critical patent/KR20130005407A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/22—Dynamic electric resistor braking, combined with dynamic electric regenerative braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals

Abstract

PURPOSE: An electric vehicle four-wheel driven transfer apparatus is provided to protect a motor safely from an overload and a counter electromotive force caused by the increase of a motor rotation speed at the high speed of four-wheel drive as well as at low speed. CONSTITUTION: An electric vehicle four-wheel driven transfer apparatus comprises a motor(6), and a converter(10). The motor generates power. The converter comprises a planetary gear train and a clutch. The planetary gear train is combined with a motor drive shaft(6a) connected with a decelerator by the medium of a pair of bearings(30), and rotates. The clutch is connected with the motor drive shaft and the planetary gear train, and delivers power to a differential gearing device. [Reference numerals] (4) Differential gear; (6) Driving motor

Description

전기자동차의 사륜구동전환장치{Electric Vehicle 4-Wheel Driven Transfer Apparatus} Electric Vehicle 4-Wheel Driven Transfer Apparatus}

본 발명은 전기자동차에 관한 것으로, 특히 저속은 물론 고속에서도 연결이 끊어지지 않아 주행성을 높이고 전 구행구간에서 회생제동도 가능한 사륜구동전환장치를 갖춘 전기자동차에 관한 것이다.The present invention relates to an electric vehicle, and more particularly, to an electric vehicle having a four-wheel drive switching device capable of improving driving efficiency and regenerative braking in all sections, because the connection is not interrupted at low speed as well as at high speed.

일반적으로 전기자동차에서 구현되는 사륜구동은 모터의 구동력을 후륜의 차동기어로 직접 전달하는 방식으로 이루어진다.In general, four-wheel drive is implemented in an electric vehicle by directly driving the driving force of the motor to the differential gear of the rear wheel.

도 5는 일반적인 사륜구동전환장치를 갖춘 전기자동차의 구성을 나타낸다.Figure 5 shows the configuration of an electric vehicle with a general four-wheel drive switching device.

도시된 바와 같이, 전기자동차에는 연료를 사용하여 발생된 동력을 전륜(111)으로 전달하는 엔진(100)이 구비되고, 4륜구동시 파워트레인과 이어지고 후륜(112)으로 연결된 차동장치(113)로 동력을 전달하여 후륜(112)을 구동하도록 모터(115)를 갖춘 사륜구동전환장치(114)가 함께 구성되어진다.As shown, the electric vehicle is provided with an engine 100 for transmitting the power generated by using the fuel to the front wheels 111, connected to the power train during the four-wheel drive to the differential device 113 connected to the rear wheels 112 Four-wheel drive switching device 114 with a motor 115 to transfer the power to drive the rear wheel 112 is configured together.

상기 엔진(100)과 전륜(111)의 구동과 관련된 모든 장치들은 전기장동차의 통상적인 구성에 따라 이루어진다.All devices related to the driving of the engine 100 and the front wheels 111 are made according to the conventional configuration of the electric vehicle.

통상, 모터(115)는 일정속도 이상으로 회전될 때 과부하가 걸리게 됨으로써 모터(115)와 함께 구성되는 제어부와 기구부에 대한 손상 위험성이 커지고, 특히 과부하시 나타나는 역기전력에 의한 손상 위험성은 더욱 커지게 된다.In general, when the motor 115 is rotated by a predetermined speed or more, the overload is increased, thereby increasing the risk of damage to the control unit and the mechanism configured together with the motor 115, and in particular, the risk of damage due to counter electromotive force appearing during overload increases. .

그러므로, 모터(115)에는 상기와 같은 손상 위험성으로부터 보호받기 위한 안전장치가 필히 요구되어진다.Therefore, the motor 115 is required to be a safety device to be protected from such risk of damage.

도 5와 같이 사륜구동전환장치(114)는 모터(115)의 동력을 이용함으로써 모터(115)의 보호를 위한 안전장치가 포함되어진다.As shown in FIG. 5, the four-wheel drive switching device 114 includes a safety device for protecting the motor 115 by using the power of the motor 115.

이를 위해, 상기 사륜구동전환장치(114)는 동력을 발생시키는 모터(115)와, 모터(115)의 감속기와 차동장치(113)사이에 위치되어 후륜(112)으로 전달되는 모터(115)의 동력을 선택적으로 연결해 4륜구동으로 전환시키는 클러치(116)로 구성되어진다.To this end, the four-wheel drive switching device 114 is located between the motor generating power 115 and the reducer and the differential device 113 of the motor 115 is transferred to the rear wheel 112 of the motor (115) It consists of a clutch 116 that selectively connects power to switch to four-wheel drive.

상기 클러치(116)는 모터(115)의 회전속도를 기준으로 차동장치(113)에 대한 모터(115)의 연결을 이어주거나 끊어줌으로써, 모터(115)를 보호하는 안전장치로 작용하게 된다.The clutch 116 connects or breaks the connection of the motor 115 to the differential device 113 based on the rotational speed of the motor 115, thereby acting as a safety device for protecting the motor 115.

이에 따라, 상기와 같이 클러치(116)를 갖춘 사륜구동전환장치(114)는 클러치(116)가 모터(115)의 감속기와 차동장치(113)사이를 서로 연결할 때 만, 모터(115)의 동력이 클러치(116)와 차동장치(113)를 거쳐 후륜(112)으로 전달됨으로써 4륜구동이 구현될 수 있게 된다.Accordingly, the four-wheel drive switching device 114 equipped with the clutch 116 as described above, the power of the motor 115 only when the clutch 116 connects between the speed reducer and the differential device 113 of the motor 115. It is transmitted to the rear wheel 112 via the clutch 116 and the differential device 113, so that the four-wheel drive can be implemented.

통상, 클러치(116)는 저속구간에서만 모터(115)의 동력을 차동장치(113)로 연결하므로, 4륜구동으로 인한 후륜의 접지력 확보효과는 저속에서만 나타날 뿐 고속에서는 전혀 구현될 수 없게 된다.In general, since the clutch 116 connects the power of the motor 115 to the differential device 113 only in the low speed section, the traction force securing effect of the rear wheel due to the four-wheel drive appears only at low speed and cannot be realized at high speed.

또한, 저속구간에서만 모터(115)와 차동장치(113)가 클러치(116)로 연결되므로, 고속주행시 제동될 때는 회생제동을 전혀 구현할 수 없게 된다.
In addition, since the motor 115 and the differential device 113 are connected to the clutch 116 only in the low speed section, the regenerative braking cannot be implemented at all when braking at high speed.

국내특허공개 10-2006-0106633(2006.10.12)는 후륜 동력전달구성을 포함한 전동 4륜 구동차에 관한 것이며, 이는 도 1및 6쪽 28내지 7쪽 21줄 참조.Korean Patent Publication No. 10-2006-0106633 (October 12, 2006) relates to an electric four wheel drive vehicle including a rear wheel power transmission configuration, see FIGS. 1 and 6 on page 28 to 7 on line 21.

이에 상기와 같은 점을 감안하여 발명된 본 발명은 저속구간에서는 모터의 동력을 클러치를 이용해 차동장치로 직접전달하는 반면 고속구간에서는 모터의 동력을 유성기어와 클러치를 이용해 차동장치로 간접전달함으로써, 저속주행시는 물론 고속주행시 4륜구동을 구현하더라도 모터의 회전속도상승에 따른 과부하와 역기전력으로부터 모터를 안전하게 보호할 수 있는 전기자동차 사륜구동전환장치를 제공하는데 목적이 있다.Accordingly, the present invention in view of the above point in the low-speed section to transfer the power of the motor directly to the differential device using the clutch while in the high-speed section by indirect transmission of the motor power to the differential device using the planetary gear and clutch, It is an object of the present invention to provide an electric vehicle four-wheel drive switching device that can safely protect the motor from overload and back electromotive force due to the increase in the rotational speed of the motor even at low speed as well as high speed driving.

또한, 본 발명은 4륜구동을 저속주행시는 물론 고속주행시에도 구현함으로써, 저속주행구간에서 고속주행 구간까지 전 구간을 통한 회생제동으로 효율성을 크게 높일 수 있는 전기자동차 사륜구동전환장치를 제공하는데 목적이 있다.In addition, an object of the present invention is to provide an electric vehicle four-wheel drive switching device that can greatly increase the efficiency by regenerative braking through the entire section from the low speed driving section to the high speed driving section by implementing the four-wheel drive at low speed as well as at high speed driving. have.

또한, 본 발명은 모터와 차동기어사이로 장착 가능하면서 적은 부품수량으로 단순 구조를 이루는 유성기어를 변속시스템으로 이용함으로써, 평기어 변속시스템 대비 부피감소 및 중량감소는 물론 조립공정도 단순화되고 특히 모터의 설계자유도를 높여 원가도 절감할 수 있는 전기자동차 사륜구동전환장치를 제공하는데 목적이 있다.
In addition, the present invention uses a planetary gear that can be mounted between the motor and the differential gear, and has a simple structure with a small number of parts as a shifting system, thereby simplifying the assembly process as well as volume reduction and weight reduction compared to the spur gear shifting system. The purpose is to provide an electric vehicle four-wheel drive switching device that can reduce the cost by increasing the design freedom.

상기와 같은 목적을 달성하기 위한 본 발명의 전기자동차의 사륜구동전환장치는 연료를 사용하여 동력을 발생시키는 엔진과 함께 구비되고, 4륜구동시 후륜에 연결된 차동장치에 동력을 제공하는 감속기를 갖춘 모터와;The four-wheel drive switching device of the electric vehicle of the present invention for achieving the above object is provided with an engine for generating power using fuel, and a motor having a reducer for providing power to a differential device connected to the rear wheel during four-wheel drive Wow;

상기 모터의 감속기에서 이어진 모터추진축과 연결되어 회전되는 유성기어열과; A planetary gear train connected to the motor propulsion shaft which is continued from the reducer of the motor;

상기 모터의 동력을 직접 상기 차동장치로 전달하도록 상기 모터추진축에 연결되고, 동시에 상기 모터의 동력을 상기 유성기어열을 거쳐 상기 차동장치로 전달하도록 상기 유성기어열에 연결되어진 클러치;A clutch coupled to the motor propulsion shaft to directly transfer power of the motor to the differential, and simultaneously coupled to the planetary gear train to transfer power of the motor to the differential via the planetary gear train;

를 포함해 구성된 것을 특징으로 한다.And a control unit.

상기 유성기어열과 상기 클러치는 상기 모터와 상기 차동장치사이로 함께 직렬 배열되고, 상기 유성기어열은 상기 클러치의 앞쪽으로 위치되어진다.The planetary gear train and the clutch are arranged in series together between the motor and the differential, and the planetary gear train is located forward of the clutch.

상기 유성기어열은 상기 모터의 모터추진축과 적어도 1개 이상의 베어링을 매개로 결합되어진다.The planetary gear train is coupled to the motor propulsion shaft of the motor through at least one bearing.

상기 유성기어열은 상기 모터추진축을 통해 회전되는 선기어와, 상기 선기어의 둘레에 외접되어 자전되는 적어도 1개 이상으로 이루어진 위성기어와, 상기 위성기어에 연결되어 상기 클러치쪽으로 회전력을 전달하는 캐리어와, 상기 위성기어가 내접되는 링기어로 구성되어진다.
The planetary gear train includes a sun gear rotated through the motor propulsion shaft, at least one satellite gear circumscribed and rotated around the sun gear, a carrier connected to the satellite gear to transmit rotational force toward the clutch, The satellite gear is composed of a ring gear inscribed.

이러한 본 발명은 모터와 차동장치사이에 함께 배열된 유성기어와 클러치를 이용해 저속구간과 고속구간에 맞춰 모터동력전달경로를 선택함으로써, 모터에 걸리는 과부하와 역기전력으로부터 모터를 안전하게 보호할 수 있는 효과가 있게 된다.The present invention uses the planetary gear and clutch arranged together between the motor and the differential device to select the motor power transmission path according to the low speed section and the high speed section, thereby effectively protecting the motor from the overload and back electromotive force applied to the motor. Will be.

또한, 본 발명은 저속주행시는 물론 고속주행시에도 모터의 손상 염려 없이 4륜구동을 구현할 수 있어, 전 주행구간에서 4륜구동을 구현할 수 있는 운전 편의성을 제공하는 효과도 있게 된다.In addition, the present invention can implement a four-wheel drive without fear of damage to the motor at high speeds as well as low-speed driving, it is also effective to provide a driving convenience that can implement a four-wheel drive in the entire driving section.

또한, 본 발명은 유성기어를 클러치와 함께 이용하여 모터의 손상없이 전 주행구간에서 4륜구동을 구현함으로써 저속주행구간에서 고속주행구간까지 회생제동 효율을 크게 높일 수 있고, 모터와 차동기어사이로 장착 가능하면서 적은 부품수량으로 단순 구조를 이루는 유성기어를 변속시스템으로 이용함으로써 평기어 변속시스템 대비 부피감소 및 중량감소는 물론 조립공정도 단순화할 수 있고, 특히 모터의 설계자유도를 높여줌으로써 원가도 절감할 수 있는 효과도 있게 된다.
In addition, the present invention by using the planetary gear together with the clutch to implement a four-wheel drive in all driving sections without damage to the motor can greatly increase the regenerative braking efficiency from the low-speed driving section to the high-speed driving section, can be mounted between the motor and the differential gear By using a planetary gear that has a simple structure with a small number of parts as a shifting system, it is possible to reduce the volume and weight, as well as simplify the assembly process compared to the spur gear shifting system, and in particular, reduce the cost by increasing the design freedom of the motor. There is also an effect.

도 1은 본 발명에 따른 사륜구동전환장치를 갖춘 전기자동차의 구성도이고, 도 2는 본 발명에 따른 사륜구동전환장치의 변속시스템 원리도이며, 도 3은 저속구간에서 4륜구동을 구현할 때 본 실시예에 따른 사륜구동전환장치의 동력전달경로이고, 도 4는 고속구간에서 4륜구동을 구현할 때 본 실시예에 따른 사륜구동전환장치의 동력전달경로이며, 도 5는 종래에 따른 사륜구동전환장치를 갖춘 전기자동차의 구성도이다.1 is a block diagram of an electric vehicle having a four-wheel drive switching device according to the present invention, Figure 2 is a schematic diagram of a shift system of the four-wheel drive switching device according to the present invention, Figure 3 is a view showing when implementing a four-wheel drive in a low-speed section 4 is a power transmission path of the four-wheel drive switching device according to the embodiment, Figure 4 is a power transmission path of the four-wheel drive switching device according to the present embodiment when implementing the four-wheel drive in the high-speed section, Figure 5 is a four-wheel drive switching device according to the prior art The schematic diagram of the electric vehicle equipped with.

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 사륜구동전환장치를 갖춘 전기자동차의 구성을 나타낸다.Figure 1 shows the configuration of an electric vehicle with a four-wheel drive switching device according to this embodiment.

도시된 바와 같이, 전기자동차에는 연료를 사용하여 발생된 동력을 전륜(2)으로 전달하는 엔진(1)이 구비되고, 4륜구동시 파워트레인과 이어지고 후륜(3)으로 연결된 차동장치(4)로 동력을 전달하여 후륜(3)을 구동시키는 사륜구동전환장치(5)가 함께 구성되어진다.As shown, the electric vehicle is equipped with an engine 1 which transmits power generated by using fuel to the front wheels 2, and is connected to a powertrain and connected to the rear wheels 3 by a power train during four-wheel drive. Four-wheel drive switching device 5 for transmitting power to drive the rear wheel (3) is configured together.

상기 엔진(1)과 전륜(2)의 구동과 관련된 모든 장치들은 전기장동차의 통상적인 구성에 따라 이루어진다.All devices associated with the drive of the engine 1 and the front wheels 2 are made according to the conventional configuration of the electric vehicle.

상기 사륜구동전환장치(5)는 동력을 발생시키는 모터(6)와, 모터(6)의 감속기에서 이어진 모터추진축(6a)과 연결되어 4륜구동시 차동장치(113)로 전달된 모터(6)의 동력으로 후륜(3)을 구동해주는 전환수단(10)으로 구성되어진다.The four-wheel drive switching device 5 is connected to the motor 6 for generating power and the motor propulsion shaft 6a connected to the reducer of the motor 6, and the motor 6 transmitted to the differential device 113 during four-wheel drive. It consists of a switching means 10 for driving the rear wheel (3) by the power of.

상기 전환수단(10)은 모터(6)의 감속기에서 이어진 모터추진축(6a)과 한쌍의 베어링(30)을 매개로 결합되어 회전되는 유성기어열(20)과, 모터(6)의 감속기에서 이어진 모터추진축(6a)과 연결되고 동시에 유성기어열(20)과 연결되어 차동장치(113)로 동력을 전달하는 클러치(40)로 구성되어진다.The switching means 10 is connected to the planetary gear train 20 rotated by the coupling between the motor propulsion shaft 6a and the pair of bearings 30 connected to the reducer of the motor 6 and the reducer of the motor 6 The clutch 40 is connected to the motor propulsion shaft 6a and simultaneously connected to the planetary gear train 20 to transmit power to the differential device 113.

상기 유성기어열(20)은 모터(6)의 감속기에서 이어진 모터추진축(6a)을 통해 회전되는 선기어(21)와, 선기어(21)의 둘레에 외접되어 자전되는 적어도 1개 이상으로 이루어진 위성기어(22)와, 위성기어(22)에 연결되어 클러치(40)쪽으로 회전력을 전달하는 캐리어(23)와, 위성기어(22)가 내접되는 링기어(24)로 구성되어진다.The planetary gear train 20 includes a sun gear 21 rotated through the motor propulsion shaft 6a connected to the reducer of the motor 6 and at least one satellite gear that is externally rotated around the sun gear 21. (22), a carrier (23) connected to the satellite gear (22) for transmitting rotational force toward the clutch (40), and a ring gear (24) in which the satellite gear (22) is inscribed.

상기 클러치(40)는 전 주행구간에서 4륜구동이 구현되도록 모터(6)의 동력을 차동장치(113)로 연결해주는 작용을 하게 된다.The clutch 40 serves to connect the power of the motor 6 to the differential device 113 so that four-wheel drive is implemented in the entire driving section.

이를 위해, 상기 클러치(40)는 모터(6)의 감속기에서 이어진 모터추진축(6a)과 직접 연결되거나, 또는 모터(6)를 통해 회전되는 유성기어열(20)과 연결되어진다.To this end, the clutch 40 is directly connected to the motor propulsion shaft 6a which is connected to the reducer of the motor 6 or to the planetary gear train 20 which is rotated through the motor 6.

상기와 같이 모터(6)와 차동자치(4)사이로 유성기어열(20)과 클러치(40)가 배열되고, 이들 간의 선택적인 연결을 이용해 고속주행시 모터(6)에 걸리는 과부하와 역기전력을 해소해줌으로써 모터(6)를 보호하는 안전장치로 작용할 수 있게 된다.As described above, the planetary gear train 20 and the clutch 40 are arranged between the motor 6 and the differential autonomous 4, and by using the selective connection therebetween, the overload and counter electromotive force applied to the motor 6 during high-speed driving are eliminated. By zooming in, it is possible to act as a safety device for protecting the motor 6.

한편, 본 실시예에 따른 사륜구동전환장치(5)는 선기어(21)와 링기어(24)의 기어비를 이용하는 간단한 원리로 변속시스템을 구현할 수 있으며, 도 2는 선기어(21)와 링기어(24)의 기어비가 선기어(21) : 링기어(24) = 1:2일 경우 사륜구동전환장치(5)를 이용한 변속 선도를 나타낸다.On the other hand, the four-wheel drive switching device 5 according to the present embodiment can implement a transmission system on a simple principle using the gear ratio of the sun gear 21 and the ring gear 24, Figure 2 is a sun gear 21 and a ring gear ( When the gear ratio of 24) is the sun gear 21: ring gear 24 = 1: 2, the shift diagram using the four-wheel drive switching device 5 is shown.

상기 사륜구동전환장치(5)를 이용한 변속시 그 성능을 확인하기 위해 필요한 확인변수는 모터(6)의 모터토크(Motor Torque)와 그에 따른 모터회전수(Motor RPM) 및 출력토크(Out Torque)와 그에 따른 출력회전수(Out RPM)이다.Confirmation parameters necessary to check the performance when the shift using the four-wheel drive switching device (5) is a motor torque (Motor Torque) of the motor (6), the motor rotation speed (Motor RPM) and the output torque (Out Torque) And the output RPM accordingly.

도2에 도시된 선도는 모터토크(Motor Torque)가 1로 일정하다고 가정할 때 사륜구동전환장치(5)를 이용해 구현되는 변속상태로서, 출력토크(Out Torque)는 모터토크(Motor Torque) = 1에서 변속시점 이후 1/3(기어비 1:2)으로 감소됨을 알 수 있고, 출력회전수(Out RPM)는 변속시점 이후에도 증가되므로 고속구간에서도 토크전달이 이루어짐을 알 수 있으며, 모터회전수(Motor RPM)는 변속시점 이후 저하되므로 고속구간에서 모터(6)와 차동기어(4)의 연결을 해제할 필요가 없음을 알 수 있다.The diagram shown in FIG. 2 is a shift state implemented using the four-wheel drive switching device 5 when the motor torque is constant as 1, and the output torque is the motor torque. It can be seen that the speed decreases to 1/3 (gear ratio 1: 2) after the shifting time at 1, and the output RPM (Out RPM) is increased even after the shifting time, so that torque transmission is achieved even at a high speed section. Motor RPM) is deteriorated after the shift time, it can be seen that it is not necessary to disconnect the motor 6 and the differential gear 4 in the high speed section.

이때, 변속시 발생될 수 있는 충격은 모터(6)를 제어함으로써 최소화 할 수 있는데, 일례로 변속시점에서 모터회전수(Motor RPM)를 차동기어(4)의 입력축과 동일하게 만들어 준 다음 서로 연결하는 제어방식을 예로 들수 있다.At this time, the shock that can be generated during shifting can be minimized by controlling the motor 6. For example, at the time of shifting, make the motor RPM equal to the input shaft of the differential gear 4 and then connect each other. For example, the control method.

도 3은 저속구간에서 4륜구동을 구현할 때, 본 실시예에 따른 사륜구동전환장치의 동력전달경로를 나타낸다.Figure 3 shows the power transmission path of the four-wheel drive switching device according to this embodiment when implementing the four-wheel drive in the low speed section.

도시된 바와 같이 4륜구동을 저속주행구간에서 구현하면, 모터(6)의 클러치(40)는 모터(6)의 감속기에서 이어진 모터추진축(6a)과 직접 연결됨으로써 모터(6)의 동력을 차동장치(113)로 전달하게 된다.As shown in the figure, when the four-wheel drive is implemented in the low-speed driving section, the clutch 40 of the motor 6 is directly connected to the motor driving shaft 6a connected to the reducer of the motor 6, thereby differentially powering the motor 6. (113).

반면, 도 4는 고속구간에서 4륜구동을 구현할 때 본 실시예에 따른 사륜구동전환장치의 동력전달경로를 나타낸다.On the other hand, Figure 4 shows the power transmission path of the four-wheel drive switching device according to this embodiment when implementing the four-wheel drive in the high speed section.

도시된 바와 같이 4륜구동을 고속주행구간에서 구현하면, 클러치(40)는 모터(6)를 통해 회전되는 유성기어열(20)과 연결됨으로써 캐리어(23)를 거친 모터(6)의 동력을 차동장치(113)로 전달하게 된다.As shown in the figure, when the four-wheel drive is implemented in the high-speed driving section, the clutch 40 is connected to the planetary gear train 20 which is rotated through the motor 6 to differential the power of the motor 6 via the carrier 23. To the device 113.

이때, 전술된 바와 같이 모터회전수(Motor RPM)는 변속시점 이후 저하되므로 고속구간에서 모터(6)와 차동기어(4)의 연결상태를 해제할 필요가 없고, 이러한 연결상태에서도 모터(6)는 과부하와 역기전력으로부터 손상을 입지 않고 안전하게 4륜구동을 구현하는 상태가 된다.At this time, as described above, since the motor RPM decreases after the shifting time, it is not necessary to release the connection state of the motor 6 and the differential gear 4 in the high speed section, and the motor 6 is maintained even in this connection state. Will safely implement four-wheel drive without damage from overload and back EMF.

상기와 같이 저속주행시는 물론 고속주행시에도 4륜구동이 구현됨으로써, 본 실시예에 따른 전기자동차는 저속주행구간부터 고속주행 구간까지 전 구간에서 회생제동을 수행할 수 있어 회생제동 효율성을 크게 높일 수 있게 된다.
As described above, four-wheel drive is implemented at high speeds as well as at low speeds, so that the electric vehicle according to the present embodiment can perform regenerative braking in all sections from the low speed to the high speed sections, thereby greatly improving the regenerative braking efficiency. do.

1 : 엔진 2,3 : 전ㅇ후륜
4 : 차동장치 5 : 사륜구동전환장치
6 : 모터 6a : 모터추진축
10 : 전환수단 20 : 유성기어열
21 : 선기어 22 : 위성기어
23 : 캐리어 24 : 링기어
30 : 베어링 40 : 클러치1: engine 2,3: front and rear wheels
4: differential device 5: four-wheel drive switching device
6: Motor 6a: Motor Propulsion Shaft
10: switching means 20: planetary gear train
21: sun gear 22: satellite gear
23 carrier 24 ring gear
30: bearing 40: clutch

Claims (5)

연료를 사용하여 동력을 발생시키는 엔진과 함께 구비되고, 4륜구동시 후륜에 연결된 차동장치에 동력을 제공하는 감속기를 갖춘 모터와;
상기 모터의 감속기에서 이어진 모터추진축과 연결되어 회전되는 유성기어열과;
상기 모터의 동력을 직접 상기 차동장치로 전달하도록 상기 모터추진축에 연결되고, 동시에 상기 모터의 동력을 상기 유성기어열을 거쳐 상기 차동장치로 전달하도록 상기 유성기어열에 연결되어진 클러치;
를 포함해 구성된 것을 특징으로 하는 전기자동차의 사륜구동전환장치.
A motor provided with an engine for generating power using fuel and having a reducer for powering a differential device connected to a rear wheel during four-wheel drive;
A planetary gear train connected to the motor propulsion shaft which is continued from the reducer of the motor;
A clutch coupled to the motor propulsion shaft to directly transfer power of the motor to the differential, and simultaneously coupled to the planetary gear train to transfer power of the motor to the differential via the planetary gear train;
Four-wheel drive switching device of an electric vehicle comprising a.
청구항 1에 있어서, 상기 유성기어열과 상기 클러치는 상기 모터와 상기 차동장치사이로 함께 직렬 배열되고, 상기 유성기어열은 상기 클러치의 앞쪽으로 위치되어진 것을 특징으로 하는 전기자동차의 사륜구동전환장치.
The four-wheel drive switching device according to claim 1, wherein the planetary gear train and the clutch are arranged together in series between the motor and the differential device, and the planetary gear train is positioned in front of the clutch.
청구항 2에 있어서, 상기 유성기어열은 상기 모터의 모터추진축과 적어도 1개 이상의 베어링을 매개로 결합되어진 것을 특징으로 하는 전기자동차의 사륜구동전환장치.
The four-wheel drive switching device for an electric vehicle according to claim 2, wherein the planetary gear train is coupled to the motor propulsion shaft of the motor through at least one bearing.
청구항 3에 있어서, 상기 유성기어열은 상기 모터추진축을 통해 회전되는 선기어와, 상기 선기어의 둘레에 외접되어 자전되는 적어도 1개 이상으로 이루어진 위성기어와, 상기 위성기어에 연결되어 상기 클러치쪽으로 회전력을 전달하는 캐리어와, 상기 위성기어가 내접되는 링기어로 구성되어진 것을 특징으로 하는 전기자동차의 사륜구동전환장치.
4. The planetary gear train of claim 3, wherein the planetary gear train includes a sun gear rotated through the motor propulsion shaft, at least one satellite gear circumscribed and rotated around the sun gear, and connected to the satellite gear to provide rotational force toward the clutch. A four-wheel drive switching device for an electric vehicle, comprising: a carrier for transmitting and a ring gear in which the satellite gear is inscribed.
청구항 4에 있어서, 상기 선기어와 상기 링기어의 기어비는 1:2를 이루는 것을 특징으로 하는 전기자동차의 사륜구동전환장치. The four-wheel drive switching device for an electric vehicle according to claim 4, wherein the gear ratio of the sun gear and the ring gear is 1: 2.
KR1020110066756A 2011-07-06 2011-07-06 Electric vehicle 4-wheel driven transfer apparatus KR20130005407A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020110066756A KR20130005407A (en) 2011-07-06 2011-07-06 Electric vehicle 4-wheel driven transfer apparatus
CN201210233171XA CN102862477A (en) 2011-07-06 2012-07-06 Four-wheel driving converter for electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110066756A KR20130005407A (en) 2011-07-06 2011-07-06 Electric vehicle 4-wheel driven transfer apparatus

Publications (1)

Publication Number Publication Date
KR20130005407A true KR20130005407A (en) 2013-01-16

Family

ID=47441708

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110066756A KR20130005407A (en) 2011-07-06 2011-07-06 Electric vehicle 4-wheel driven transfer apparatus

Country Status (2)

Country Link
KR (1) KR20130005407A (en)
CN (1) CN102862477A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017211255A1 (en) 2016-07-06 2018-01-11 Hyundai Dymos Incorporated Device for rear-wheel drive of an environmentally friendly vehicle
US10059199B2 (en) 2015-12-24 2018-08-28 Hyundai Dymos Incorporated Driving apparatus for rear wheel of environment-friendly vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11225238B2 (en) * 2015-05-18 2022-01-18 Ford Global Technologies, Llc System and method for increasing regenerative braking in a rear-wheel-drive-based platform with four-wheel-drive capability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000120842A (en) * 1998-10-09 2000-04-28 Tochigi Fuji Ind Co Ltd Differential gear
JP4821208B2 (en) * 2005-08-08 2011-11-24 日産自動車株式会社 Vehicle driving force distribution device
KR100946492B1 (en) * 2007-10-29 2010-03-10 현대자동차주식회사 Rear wheel drive apparatus for 4WD-hybrid electric vehicle
KR100925687B1 (en) * 2007-11-19 2009-11-10 현대자동차주식회사 Power transmission structure for 4WD vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10059199B2 (en) 2015-12-24 2018-08-28 Hyundai Dymos Incorporated Driving apparatus for rear wheel of environment-friendly vehicle
DE102017211255A1 (en) 2016-07-06 2018-01-11 Hyundai Dymos Incorporated Device for rear-wheel drive of an environmentally friendly vehicle
US10300910B2 (en) 2016-07-06 2019-05-28 Hyundai Dymos Incorporated Apparatus for driving rear-wheels of environment-friendly vehicle

Also Published As

Publication number Publication date
CN102862477A (en) 2013-01-09

Similar Documents

Publication Publication Date Title
KR101628130B1 (en) Four wheel drive power transmission system of hybrid electric vehicle
JP5926113B2 (en) Automotive driveline device
KR101961509B1 (en) Drive train of a purely electrically all-wheel drivable motor vehicle
JP5805784B2 (en) Drive device for vehicle auxiliary device
EP2360392B1 (en) Transmission
US7678003B2 (en) Hybrid vehicle transmission with a mechanical reverse function
KR101459474B1 (en) Transmission system of four wheel drive hybrid electric vehicle
WO2018174067A1 (en) Power transmission device
KR20140099260A (en) Drive train of a purely electrically all-wheel drivable motor vehicle
JP5921773B2 (en) Hybrid drive vehicle drive system
JP2005147404A (en) Hybrid power transmission mechanism
CN101450607A (en) Hybrid drive system and method
CN109990053A (en) Speed changer, power-driven system and vehicle
KR20180134969A (en) Vehicle drive line system
KR102374192B1 (en) differential
CN111152650A (en) Hybrid axle drive with torque vectoring
CN207814352U (en) Speed changer, power-driven system and vehicle
WO2017072329A1 (en) Torque vectoring device
KR20130005407A (en) Electric vehicle 4-wheel driven transfer apparatus
JP7025239B2 (en) Vehicle drive
JP2008089075A (en) Driving force distributing device for vehicle
KR100748759B1 (en) 4wd device for hev
JP6840546B2 (en) Vehicle mounting equipment control system and vehicle mounting equipment control method
JP2005351471A (en) Differential gear, front and rear wheel drive device using the differential gear, and control method for the front and rear wheel drive device
JP2019513619A (en) Vehicle driveline system

Legal Events

Date Code Title Description
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid