KR102471149B1 - Hybrid eco-friendly multi-purpose road management vehicle for special purpose vehicles - Google Patents

Hybrid eco-friendly multi-purpose road management vehicle for special purpose vehicles Download PDF

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KR102471149B1
KR102471149B1 KR1020220126215A KR20220126215A KR102471149B1 KR 102471149 B1 KR102471149 B1 KR 102471149B1 KR 1020220126215 A KR1020220126215 A KR 1020220126215A KR 20220126215 A KR20220126215 A KR 20220126215A KR 102471149 B1 KR102471149 B1 KR 102471149B1
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electric motor
driving
speed
vehicle
hybrid
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이강욱
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리텍 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel 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
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed 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
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present invention relates to a hybrid eco-friendly multipurpose road management vehicle for a special-purpose vehicle and, more specifically, to a new concept of technology in which a hybrid mechanism driven with an electric motor is grafted onto a four-wheel-drive diesel special-purpose vehicle instead of a hybrid mechanism of a general sedan concept. Due to overloaded cargo, an existing special-purpose vehicle such as a multipurpose road management vehicle cannot be normally braked and steered through the same braking mechanism and device as that of an existing sedan type hybrid or electric vehicle which can perform normal braking and steering even with the engine stopped during an electric driving mode, and, therefore, an eco-friendly special-purpose vehicle made by applying a hybrid mechanism to a multipurpose road management vehicle has not existed up to now. In accordance with the present invention, as a solution to such issues, a hybrid eco-friendly system concept is applied to a multipurpose road management vehicle, thereby selectively using an electric battery and an electric motor only when necessary to smoothly perform multipurpose work while regularly driving an engine as well as securing driving safety and embodying an eco-friendly property through normal braking or steering.

Description

특장차량용 하이브리드 친환경 다목적 도로관리차{Hybrid eco-friendly multi-purpose road management vehicle for special purpose vehicles}Hybrid eco-friendly multi-purpose road management vehicle for special purpose vehicles}

본 발명은 일반 승용개념의 하이브리드 방식이 아닌 4륜 구동의 디젤 특장차량에 전기모터로 구동하는 하이브리드 방식이 접목된 신개념의 기술에 관한 것이다.The present invention relates to a technology of a new concept in which a hybrid method driven by an electric motor is applied to a four-wheel drive diesel special vehicle, not a hybrid method of a general passenger vehicle concept.

일반적으로 다목적 도로관리차라 함은 계절에 구애받지 않고 한 대의 차량을 이용하여 동절기의 제설작업, 중량물의 상·하차작업, 크레인을 이용한 고소작업, 차도 및 도로변의 먼지와 오물청소, 도로터널과 방음벽의 세척, 가로수방제작업 및 녹지 물공급 등의 다양한 작업을 수행하면서 도로를 유지, 관리하는 차량을 일컫는다.In general, a multi-purpose road management vehicle refers to snow removal work in winter using one vehicle regardless of the season, loading and unloading of heavy objects, work at high places using a crane, dust and dirt cleaning on roads and roadsides, road tunnels and soundproof walls It refers to a vehicle that maintains and manages roads while carrying out various tasks such as cleaning of roads, removing water from roadsides, and supplying water to green areas.

상기 다목적 도로관리차는 차량의 전방 및 후방에 제설기, 얼음파쇄기, 살수장치, 제초기, 스노우 블로어, 살포기, 가이드레일청소기. 터널청소기, 도로보수장비 등 다양한 종류의 작업장치를 선택적으로 장착하여 운용하는 것으로, 상기 작업장치는 유압을 동력원으로 이용하여 작동하고 있다.The multi-purpose road management vehicle has a snow remover, an ice crusher, a watering device, a weeder, a snow blower, a spreader, and a guide rail cleaner at the front and rear of the vehicle. It selectively mounts and operates various types of work devices such as tunnel cleaners and road repair equipment, and the work devices operate using hydraulic pressure as a power source.

이러한 다목적 도로관리차에 관련한 선행기술로는 「제1939769호, 명칭/ GPS를 활용한 지능형 통합 컨트롤 시스템이 적용된 다목적도로관리차 및 그 운전방법」이 개시되고 있다.As prior art related to such a multi-purpose road management vehicle, 「No. 1939769, name/multi-purpose road management vehicle with an intelligent integrated control system using GPS and its driving method」 is disclosed.

그런데 종래의 모든 다목적 도로관리차는 선택적으로 필요시만 전기배터리와 전기모터를 이용하여 저속주행을 하는 하이브리드 기능이 없어 친환경적이지 못한 문제점이 야기된다.However, all conventional multi-purpose road management vehicles do not have a hybrid function of driving at a low speed using an electric battery and an electric motor selectively when necessary, causing a problem that is not environmentally friendly.

한편, 현재까지 승용부분에는 친환경적인 차량으로 하이브리드카와 전기차가 있고, 승용 하이브리드카는 시내주행 및 저속주행은 전기구동이며, 고속주행은 엔진구동으로 구분되고, 특히 전기구동에서는 엔진이 정지된 상태인 것으로, 이러한 승용부분의 하이브리드카 및 전기차와 상기 다목적 도로관리차와 같은 특장차량과의 가장 큰 차이점은 제동과 조향에 따른 방식 및 구성이 확연하게 다른 점이다.On the other hand, so far, there are hybrid cars and electric vehicles as eco-friendly vehicles in the passenger car sector. Passenger hybrid cars are classified into electric drives for city driving and low-speed driving, and engine driving for high-speed driving. In particular, in electric driving, the engine is stopped The biggest difference between hybrid cars and electric cars in the passenger car and special vehicles such as the multi-purpose road management vehicle is that the braking and steering methods and configurations are clearly different.

즉 특장차량의 제동은 엔진에 장착된 별도의 콤프레셔가 시동과 함께 상시구동하면서 콤프레셔가 발생한 압축공기를 이용하는 에어브레이크의 작동에 따라 이루어지고, 조향은 엔진에 장착된 별도의 파워스티어링펌프가 시동과 함께 상시구동하면서 파워스티어링펌프의 작동에 따라 이루어짐에 따라 항상 엔진이 작동된 상태를 유지하여야만 정상적인 제동과 조향이 이루어진다.In other words, the braking of a special vehicle is performed by the operation of the air brake using the compressed air generated by the compressor while the separate compressor mounted on the engine is always driven with the start, and the steering is performed by the separate power steering pump mounted on the engine. Normal braking and steering are performed only when the engine is always running as it is driven together at all times and according to the operation of the power steering pump.

그러나 종래의 승용 하이브리드카의 제동과 조향장치는 특장차량과 비교도 안 될 정도로 소형이면서 기계적 구성이 가능함으로써 엔진 구동에 의한 별도의 에어브레이크를 구비하지 않고서도 전기구동에 의한 시내주행 및 저속주행시 엔진이 정지된 상태를 유지함에도 제동과 조향에는 아무런 문제가 되지 않는다.However, the braking and steering devices of conventional passenger hybrid cars are compact enough to be incomparably smaller than those of special vehicles and can be configured mechanically, so that they do not require a separate air brake driven by the engine. Even while maintaining this stationary state, braking and steering are not a problem.

그러나 상기 다목적 도로관리차와 같은 특장차량은 과대 적재물량으로 인하여 전기구동시 엔진을 정지한 상태로도 제동과 조향이 정상적으로 이루어지는 종래 승용부분의 하이브리드카 및 전기차와 같은 제동방법 및 장치로는 정상적인 제동과 조향이 불가능함으로써 다목적 도로관리차에 하이브리드 방식을 적용한 친환경 특장차량은 현재까지 전무한 실정이다.However, special vehicles such as the above-mentioned multi-purpose road management vehicle have normal braking methods and devices such as hybrid cars and electric vehicles in the conventional passenger compartment in which braking and steering are normally performed even when the engine is stopped during electric driving due to excessive loading. Since it is impossible to over-steer, there is no eco-friendly special vehicle that applies a hybrid method to a multi-purpose road management vehicle.

본 발명은 상기한 과제를 해결하기 위한 수단으로 다목적 도로관리차에 하이브리드 친환경 시스템 개념을 적용하여 선택적으로 필요시에만 전기배터리와 전기모터를 이용하여 저속주행을 하는 과정에도 엔진을 상시 구동하면서 다목적 작업을 원활하게 수행함과 아울러 정상적인 제동이나 조향을 통해 주행 안전성 확보 및 친환경을 구현하도록 하는 기술을 강구한다.As a means to solve the above problems, the present invention applies the concept of a hybrid eco-friendly system to a multi-purpose road management vehicle, selectively using an electric battery and an electric motor only when necessary, and multi-purpose work while driving the engine at all times even in the process of low-speed driving. In addition to smoothly performing the operation, we seek technologies that ensure driving safety and realize eco-friendliness through normal braking and steering.

또한, 본 발명은 전기모터의 작동에 의한 저속주행시 브레이크의 제동신호를 받으면 상기 전기모터의 출력을 내려주어 과부하 및 파손을 방지함과 아울러 제동신호가 끊기면 원래의 전기모터 회전수로 출력을 올려주어 저속주행을 지속할 수 있도록 하는 기술을 강구한다.In addition, the present invention reduces the output of the electric motor when receiving a braking signal from the brake when driving at low speed due to the operation of the electric motor to prevent overload and damage, and increases the output to the original electric motor rotation speed when the braking signal is cut off Develop technologies that enable sustained low-speed driving.

또한, 본 발명은 전기모터의 작동에 의한 내리막길 주행시 차량의 중량과 가속력에 의해 전기모터의 회전속도보다 높아지는 전, 후륜의 속도를 감지하면 자동으로 전기모터의 동력을 차단하여 전, 후륜에서 전기모터로 동력이 역방향으로 전달됨을 방지하여 전기모터를 보호할 수 있도록 하는 기술을 강구한다.In addition, the present invention detects the speed of the front and rear wheels that are higher than the rotational speed of the electric motor due to the weight and acceleration of the vehicle when driving downhill by the operation of the electric motor, and automatically cuts off the power of the electric motor so that the electric power is applied to the front and rear wheels. A technology to protect an electric motor by preventing power from being transmitted in the reverse direction to the motor is sought.

본 발명에 따르면, 전기모터의 구동시 엔진이 정지됨은 물론 전기모터의 자체 감속으로 제동이 이루어지는 기존의 승용 하이브리드카와 달리 시동을 켜면 상시 구동하는 엔진과 전기를 혼용하는 하이브리드 기능을 발휘함에도 정상적인 제동과 조향이 이루어짐으로써 저속주행시 전기모터의 사용으로 친환경을 구현할 뿐만 아니라 연비를 높여 연료비를 절감하고, 소음 발생을 억제하는 효과를 제공한다.According to the present invention, unlike conventional passenger hybrid cars in which the engine is stopped when the electric motor is driven and braking is performed by the electric motor's own deceleration, when the engine is turned on, the hybrid function of using the engine and electricity to be constantly driven is exhibited. By steering, the use of an electric motor during low-speed driving not only realizes eco-friendliness, but also provides an effect of reducing fuel costs and suppressing noise by increasing fuel efficiency.

또한, 본 발명은 전기모터에 의한 저속주행시에도 엔진이 정상적으로 구동됨으로써 엔진으로부터 인출한 동력을 이용하여 각종 작업장치를 정상적으로 가동하여 다양한 작업을 수행하면서 도로를 유지, 관리할 수 있는 효과를 제공한다.In addition, the present invention provides an effect of maintaining and managing the road while performing various tasks by normally operating various work devices using power drawn from the engine because the engine is normally operated even when driving at low speed by an electric motor.

또한, 본 발명은 전기모터에 의한 저속주행시 브레이크의 제동신호를 받으면 상기 전기모터의 출력을 내려줌으로써 과부하 및 파손을 방지함과 아울러 제동신호가 끊기면 원래의 전기모터 회전수로 출력을 올려줌으로써 저속주행을 원활하게 지속할 수 있는 효과를 제공한다.In addition, the present invention prevents overload and damage by lowering the output of the electric motor when receiving a braking signal from the brake during low-speed driving by the electric motor, and also increases the output to the original number of revolutions of the electric motor when the braking signal is cut off, thereby driving at low speed. provides an effect that can continue smoothly.

더욱이 본 발명은 내리막길에서 저속주행시 전, 후륜의 속도를 인지하여 속도가 전기모터의 회전속도보다 높아지면 자동으로 전기모터로 전달되는 동력을 차단함으로써 전기모터를 보호하여 내구성을 향상하는 효과를 제공한다.Furthermore, the present invention recognizes the speed of the front and rear wheels when driving at low speed on a downhill road, and when the speed is higher than the rotational speed of the electric motor, automatically cuts off the power transmitted to the electric motor to protect the electric motor and improve durability. do.

도 1은 본 발명이 적용된 친환경 다목적 도로관리차의 정면도
도 2는 본 발명 다목적 도로관리차의 샤시를 나타낸 정면도
도 3은 본 발명의 트랜스퍼 케이스의 동력 입, 출력을 나타낸 정면도
도 4는 본 발명의 전기모터가 적용된 트랜스퍼 케이스의 정면도
도 5는 본 발명의 전기모터가 적용된 트랜스퍼 케이스의 평면도
도 6는 본 발명의 전기모터에 설치된 회전 속도센서의 확대도
도 7은 본 발명의 트랜스퍼 케이스에 설치된 오일 온도센서의 확대도
도 8은 본 발명 트랜스퍼 케이스의 내부구조를 나타낸 정단면도1 is a front view of an eco-friendly multi-purpose road management vehicle to which the present invention is applied
2 is a front view showing the chassis of the multipurpose road management vehicle of the present invention
3 is a front view showing power input and output of the transfer case of the present invention
4 is a front view of a transfer case to which an electric motor of the present invention is applied
5 is a plan view of a transfer case to which an electric motor of the present invention is applied
Figure 6 is an enlarged view of a rotational speed sensor installed in the electric motor of the present invention
7 is an enlarged view of an oil temperature sensor installed in the transfer case of the present invention
8 is a front cross-sectional view showing the internal structure of the transfer case of the present invention

본 발명이 해결하고자 하는 과제의 해결수단을 보다 구체적으로 구현하기 위한 바람직한 실시예에 대하여 설명하기로 한다.It will be described with respect to a preferred embodiment for more specifically implementing the solution to the problem to be solved by the present invention.

본 발명의 바람직한 실시예에 따른 전체적인 구성을 첨부된 도면에 의거 개략적으로 살펴보면, 엔진(2)에 의해 에어 콤프레셔를 작동시켜 발생한 압축공기를 이용하여 제동하는 디젤 특장차량(1)에 있어서,Referring schematically to the overall configuration according to a preferred embodiment of the present invention based on the accompanying drawings, in a diesel special vehicle (1) that brakes using compressed air generated by operating an air compressor by an engine (2),

변속기(10), 트랜스퍼 케이스(20), 전기모터(30)의 구성요소로 대분 됨을 확인할 수 있다. It can be seen that it is largely divided into the components of the transmission 10, the transfer case 20, and the electric motor 30.

이하, 상기 개략적인 구성으로 이루어진 본 발명을 실시 용이하도록 좀더 상세하게 설명하기로 한다.Hereinafter, the present invention consisting of the above schematic configuration will be described in more detail to facilitate implementation.

우선적으로 본 발명은 전기모터(30)의 자체 감속만으로는 제동에 한계가 있는 대형 디젤 특장차량(1)에 친환경 하이브리드 방식을 적용하는 특수한 기술분야에 속함을 감안하여, 엔진(2)에 의해 에어 콤프레셔를 작동시켜 발생한 압축공기를 이용하여 제동하는 별도의 에어 브레이크 시스템이 필수적으로 동반되어야만 한다.First of all, in view of the fact that the present invention belongs to a special technical field of applying an eco-friendly hybrid method to a large diesel special vehicle (1) in which braking is limited only by self-deceleration of the electric motor (30), the air compressor by the engine (2) A separate air brake system that brakes using compressed air generated by operating the brake must necessarily be accompanied.

이러한 특장차량(1)의 엔진(2)에는 후방에 변속기(10)가 연결 설치되고, 변속기(10)는 엔진(2)에서 발생하는 동력을 속도에 따라 필요한 회전력으로 바꾸어 전달하는 기능을 수행한다.A transmission 10 is connected and installed at the rear of the engine 2 of the specially equipped vehicle 1, and the transmission 10 performs a function of converting power generated in the engine 2 into required rotational force according to speed and transmitting the transmission. .

상기 변속기(10)의 후방에 설치되는 트랜스퍼 케이스(20)는 도 2 내지 도 3과 같이 상기 변속기(10)와 인풋 샤프트(3)를 매개로 연결됨으로써 인풋 샤프트(3)를 통해 변속된 회전동력이 내부로 입력되고, 인풋 샤프트(3)를 통해 입력된 동력을 분배하여 전륜(4) 구동을 위한 프론트 아웃풋 샤프트(5) 및 후륜(6) 구동을 위한 리어 아웃풋 샤프트(7)로 각각 전달함으로써 특장차량(1)은 4륜 구동으로 주행할 수 있게 된다.The transfer case 20 installed at the rear of the transmission 10 is connected to the transmission 10 through the input shaft 3 as shown in FIGS. It is input to the inside, distributes the input power through the input shaft 3, and transfers it to the front output shaft 5 for driving the front wheels 4 and the rear output shaft 7 for driving the rear wheels 6, respectively. The special vehicle 1 is capable of running in four-wheel drive.

한편, 본 발명은 각종 작업장치를 이용하여 작업을 할 때 저속주행(주행속도예상 : 30km/h 이하에서만 작동)이 필요하고, 이러한 저속주행시 선택적으로 전기배터리(31)와 전기모터(30)를 이용하는 친환경 하이브리드 방식의 기술이 유기적으로 접목됨을 지배적인 특징으로 한다.On the other hand, the present invention requires low-speed driving (expected driving speed: operates only at 30 km/h or less) when working using various work devices, and selectively uses the electric battery 31 and the electric motor 30 during such low-speed driving. The dominant feature is that the technology of the eco-friendly hybrid method used is organically grafted.

이를 위한 기술구성으로 상기 트랜스퍼 케이스(20)에는 전기모터(30)가 부착되고, 전기모터(30)는 특장차량(1)의 캐빈(1a) 뒤쪽에 배치된 배터리박스(32) 내부의 전기배터리(31)에 충전된 전기를 이용하여 작동될 수 있으며, 트랜스퍼 케이스(20) 내부의 중간축(22)에 선택적으로 동력을 전달함으로써 하이브리드 방식으로 저속주행을 할 수 있게 된다.As a technical configuration for this purpose, an electric motor 30 is attached to the transfer case 20, and the electric motor 30 is an electric battery inside a battery box 32 disposed behind the cabin 1a of the special vehicle 1. It can be operated using the electricity charged in 31, and by selectively transmitting power to the intermediate shaft 22 inside the transfer case 20, it is possible to drive at low speed in a hybrid manner.

상기 전기배터리는 인산철, 리튬이온이 아닌 상용배터리를 활용하여 안정성을 확보하고, 또한 방전시 충전이 가정전압으로 쉽게 충전 가능한 구조로 이루어진다.The electric battery has a structure in which stability is secured by using a commercial battery other than iron phosphate and lithium ion, and can be easily charged with a home voltage when discharging.

여기에서 상기 전기모터(30)의 구동에 따른 저속주행시에는 반드시 별도의 에어브레이크 시스템을 구동하여 위급상황 시 정상적인 제동이 확실하게 이루어도록 하여 안전사고를 방지함은 물론 상기 엔진(2)으로부터 동력을 인출하여 제설기, 살수장치 등의 각종 작업장치를 원활하게 작동할 수 있도록 엔진(2)은 공회전을 유지함과 아울러 물론 변속기(10)의 중립을 유지함으로써 전기모터(30)의 구동력이 역방향인 엔진(2)으로 전달됨을 방지하여 엔진(2)의 손상을 방지하는 효과를 제공한다.Here, when driving at low speed according to the driving of the electric motor 30, a separate air brake system must be driven so that normal braking is ensured in an emergency situation to prevent safety accidents as well as to obtain power from the engine 2 The engine 2 maintains idling and, of course, maintains the neutral of the transmission 10 so that various work devices such as a snow plow and a water sprinkler can be smoothly operated by pulling out, so that the driving force of the electric motor 30 is reversed. 2) to prevent damage to the engine 2.

이러한 저속주행의 전환모드에서 동력의 입력과 차단은 에어식 또는 전자식으로 적용하여 내구성 및 원활한 작동성을 확보하고, 4륜 구동에 따라 반드시 정지상태에서 전환하여야만 안전성을 유지한다.In this low-speed conversion mode, power input and cutoff is applied by air or electronic to ensure durability and smooth operation, and safety must be maintained only when switched in a stopped state according to 4-wheel drive.

또한, 본 발명은 저속주행 제어를 원활하게 하기 위한 방안으로 회전 속도센서(40)를 통해 전기모터(30)의 회전수 정보 및 전류, 전압 데이터를 받아서 일정한 속도로 주행을 유지할 수 있도록 하는 기술이 추가로 접목된다.In addition, the present invention is a method for facilitating low-speed driving control, and a technique for maintaining driving at a constant speed by receiving rotation speed information and current and voltage data of an electric motor 30 through a rotation speed sensor 40 is provided. additionally incorporated.

이를 위한 기술구성으로 상기 전기모터(30)에는 도 6과 같이 회전 속도센서(40)가 설치되고, 상기 회전 속도센서(40)를 통해 측정된 모터 회전수를 연산해서 전류를 제어하여 상기 전기모터(30)를 가속/감속하면서 저속주행에 필요한 일정한 속도를 유지할 수 있으며, 이와 같이 전기모터(30)의 전류를 제어하여 저속주행을 함에 따라 주행속도의 미세조정이 가능함으로써 작업성능 및 효율성을 증대하는 효과를 제공한다.As a technical configuration for this purpose, a rotation speed sensor 40 is installed in the electric motor 30 as shown in FIG. It is possible to maintain a constant speed required for low-speed driving while accelerating / decelerating the 30, and in this way, by controlling the current of the electric motor 30 to perform low-speed driving, it is possible to fine-tune the driving speed, thereby increasing work performance and efficiency provides the effect of

또한, 본 발명은 하절기 저속주행시 트랜스퍼 케이스(20)에 전기모터(30)가 유기적으로 접목된 구성으로 인해 전기모터(30)의 작동에 따른 트랜스퍼 케이스(20) 내부의 오일 온도 상승을 감지하기 위한 기술이 추가로 접목된다.In addition, the present invention is to sense the oil temperature rise inside the transfer case 20 according to the operation of the electric motor 30 due to the configuration in which the electric motor 30 is organically grafted to the transfer case 20 during low-speed driving in summer technology is further incorporated.

이를 위한 기술구성으로 상기 트랜스퍼 케이스(20)에는 도 7과 같이 오일 온도센서(50)가 설치되고, 상기 오일 온도센서(50)는 전기모터(30)의 작동에 따른 트랜스퍼 케이스(20) 내의 오일 온도 상승을 감지하여 설정온도 이상에 도달하면 즉각 경고를 표시하여 전기모터(30)를 안전하게 보호하는 특별한 효과를 제공한다.As a technical configuration for this, an oil temperature sensor 50 is installed in the transfer case 20 as shown in FIG. When the temperature rise is detected and reaches a set temperature or more, a warning is immediately displayed to provide a special effect of safely protecting the electric motor 30 .

한편, 본 발명의 전기모터(30)는 제동시에도 계속작동을 하므로 제동신호를 인식하면 전기모터(30)의 출력을 내려주는 기능이 동반되어야만 전기모터(30)의 과부하 및 파손을 방지할 수 있음을 적극 고려하는 기술이 추가로 접목된다.On the other hand, since the electric motor 30 of the present invention continues to operate even during braking, overload and damage to the electric motor 30 can be prevented only when a function of reducing the output of the electric motor 30 is accompanied when a braking signal is recognized. A technology that actively considers that there is is additionally grafted.

이를 위한 기술구성으로 상기 전기모터(30)의 구동에 의한 저속주행시 전기모터(30)와 연동이 안 되는 브레이크의 제동신호를 받으면 상기 전기모터(30)의 출력을 자동으로 내려주어 과부하 및 파손을 방지함과 아울러 브레이크의 제동신호가 끊기면 원래의 전기모터(30) 회전수로 출력을 올려줌으로써 저속주행을 원활하게 지속할 수 있는 효과를 제공한다.As a technical configuration for this purpose, when the electric motor 30 is driven at a low speed and receives a braking signal from a brake that does not interlock with the electric motor 30, the output of the electric motor 30 is automatically lowered to prevent overload and damage. In addition, when the braking signal of the brake is disconnected, the output is raised to the original number of rotations of the electric motor 30, thereby providing an effect of smoothly continuing the low-speed driving.

본 발명은 상기 전기모터(30)의 구동에 의한 내리막길 주행시 특장차량(1)의 중량과 가속력에 의해 전륜(4) 및 후륜(6)에서 전기모터(30)로 동력이 역방향으로 전달되는 현상을 해소할 수 있도록 내리막길을 주행할 때 전기모터(30)의 회전속도보다 높아지는 전륜(4) 및 후륜(6)의 속도를 감지하면 자동으로 전륜(4) 및 후륜(6)에서 전기모터(30)로 동력이 역방향으로 전달됨을 차단함으로써 전기모터(30)를 안전하게 보호할 수 있게 된다.The present invention relates to a phenomenon in which power is transmitted in the opposite direction from the front wheels 4 and the rear wheels 6 to the electric motor 30 due to the weight and acceleration of the specially equipped vehicle 1 when driving downhill by the driving of the electric motor 30. When the speed of the front wheel 4 and the rear wheel 6 that is higher than the rotational speed of the electric motor 30 is detected when driving downhill to solve the problem, the electric motor ( 30), it is possible to safely protect the electric motor 30 by blocking the transmission of power in the reverse direction.

여기에서 상기 전기모터(30)로 동력이 역방향으로 전달됨을 차단하는 방법으로는 전기모터(30)의 모터축(33) 및 중간축(22)의 사이에 도 8과 같이 공지의 동력차단장치(60)가 연결 설치됨으로써 상기 동력차단장치(60)의 단속에 따라 전기모터(30)로 전달되는 동력을 차단하여 전기모터(30)를 안전하게 보호하고 내구성을 향상하는 특별한 효과를 제공한다.Here, as a method of blocking the transmission of power to the electric motor 30 in the reverse direction, a known power blocking device as shown in FIG. 8 between the motor shaft 33 and the intermediate shaft 22 of the electric motor 30 ( 60) is connected to provide a special effect of safely protecting the electric motor 30 and improving durability by blocking the power transmitted to the electric motor 30 according to the control of the power cut-off device 60.

상기 트랜스퍼 케이스(20)의 내부 구조를 좀 더 상세하게 살펴보면, 트랜스퍼 케이스(20)의 상측에는 인풋 샤프트(3)와 연결된 주축(21)이 회전 가능하게 설치되고, 상기 주축(21)의 회전동력을 기어조합을 통해 전달받는 중간축(22)이 설치됨과 아울러 중간축(22)은 전기모터(30)와 연결되며, 상기 중간축(22)의 회전동력을 기어조합을 통해 전달받는 종동축(23)이 설치되는 한편, 상기 종동축(23)의 전후 양측에는 각각 프론트 아웃풋 샤프트(5) 및 리어 아웃풋 샤프트(7)가 연결됨으로써 입력된 동력을 분배하여 전륜(4) 구동을 위한 프론트 아웃풋 샤프트(5) 및 후륜(6) 구동을 위한 리어 아웃풋 샤프트(7)로 각각 전달하여 특장차량(1)은 4륜 구동으로 원활하게 주행할 수 있게 된다.Looking at the internal structure of the transfer case 20 in more detail, the main shaft 21 connected to the input shaft 3 is rotatably installed on the upper side of the transfer case 20, and the rotational power of the main shaft 21 is provided. The intermediate shaft 22 is installed through the gear combination, and the intermediate shaft 22 is connected to the electric motor 30, and the driven shaft receives the rotational power of the intermediate shaft 22 through the gear combination ( 23) is installed, while the front output shaft 5 and the rear output shaft 7 are connected to both sides of the driven shaft 23, respectively, so that the input power is distributed to the front output shaft for driving the front wheels 4. (5) and the rear output shaft (7) for driving the rear wheels (6), respectively, so that the special vehicle (1) can run smoothly in four-wheel drive.

이러한 본 발명은 엔진(2)의 동력을 이용하여 고속주행을 하다가 필요시 전기모터(30)를 이용한 저속주행을 선택적으로 실시하는 하이브리드 방식을 구현함에 있어 상기 전기모터(30)의 고장이나 파손으로 인한 비상 및 긴급상황 발생시 엔진(2)의 동력을 이용하여 저속주행을 가능하게 하는 기술이 추가로 접목된다.In the present invention, in implementing a hybrid method of selectively performing low-speed driving using the electric motor 30 while driving at high speed using the power of the engine 2, when necessary, failure or damage of the electric motor 30 In the event of an emergency or an emergency situation due to an emergency, a technology enabling low-speed driving using the power of the engine 2 is additionally grafted.

이를 위한 기술구성으로 상기 주축(21)의 중앙에는 양측으로 선택하여 맞물림 접속 가능한 전자클러치(24)가 일체로 설치되고, 상기 전자클러치(24)의 양측에는 고속기어(25) 및 저속기어(26)가 각각 회전 자유롭게 설치되며, 상기 중간축(22)의 양측에는 각각 고속기어(25) 및 저속기어(26)와 치합되어 연동 회전하는 한 쌍의 아이들기어(27)(27a)가 일체로 설치되고, 상기 어느 한쪽의 아이들기어(27a)는 종동축(23)에 형성된 종동기어(28)와 치합된다.As a technical configuration for this purpose, in the center of the main shaft 21, an electronic clutch 24 that can be engaged and connected by selecting both sides is integrally installed, and a high speed gear 25 and a low speed gear 26 are integrally installed on both sides of the electronic clutch 24. ) are freely rotatably installed, and on both sides of the intermediate shaft 22, a pair of idle gears 27 and 27a meshed with the high gear 25 and the low gear 26 to rotate interlockingly are integrally installed. And, one of the idle gears 27a is meshed with the driven gear 28 formed on the driven shaft 23.

따라서 전기모터(30)를 사용하지 않고 평상시 고속주행을 할 때에는 전자클러치(24)가 상기 고속기어(25)와 맞물림 접속됨으로써 주축(21)의 회전력은 고속기어(25), 아이들기어(27) 및 종동기어(28)를 순차적으로 거치면서 종동축(23)으로 전달되어 프론트 아웃풋 샤프트(5) 및 리어 아웃풋 샤프트(7)는 동시에 회전하면서 고속주행이 이루어진다.Therefore, when the electric motor 30 is not used and the electric clutch 24 is meshed with the high-speed gear 25 when driving at a normal high speed, the rotational force of the main shaft 21 is generated by the high-speed gear 25 and the idle gear 27 and the driven gear 28 are transmitted to the driven shaft 23 sequentially, and the front output shaft 5 and the rear output shaft 7 simultaneously rotate and travel at high speed.

또한, 전기모터(30)의 고장이나 파손으로 인한 비상 및 긴급상황이 발생하더라도 상기 전자클러치(24)는 저속기어(26)와 맞물림 접속됨으로써 주축(21)의 회전력은 고속기어(25), 아이들기어(27a) 및 종동기어(28)를 순차적으로 거치면서 종동축(23)으로 전달되어 프론트 아웃풋 샤프트(5) 및 리어 아웃풋 샤프트(7)는 동시에 회전하면서 저속주행이 이루어짐으로써 어떠한 경우라도 저속주행이 가능하고, 이로 인해 작업중단 없이 연속적인 다목적 작업을 수행함은 물론 작업의 효율성을 향상하는 효과를 제공한다.In addition, even if an emergency or emergency situation occurs due to failure or damage of the electric motor 30, the electronic clutch 24 is interlocked with the low gear 26, so that the rotational force of the main shaft 21 is transferred to the high gear 25, idle It is transmitted to the driven shaft 23 while sequentially passing through the gear 27a and the driven gear 28, so that the front output shaft 5 and the rear output shaft 7 rotate at the same time to achieve low-speed travel, so that in any case, low-speed travel This makes it possible to perform continuous multi-purpose work without interruption of work as well as to improve work efficiency.

1: 특장차량 2: 엔진
3: 인풋 샤프트 4: 전륜
5: 프론트 아웃풋 샤프트 6: 후륜
7: 리어 아웃풋 샤프트 10: 변속기
20: 트랜스퍼 케이스 21: 주축
22: 중간축 23: 종동축
24: 전자클러치 25: 고속기어
26: 저속기어 27, 27a: 아이들기어
28: 종동기어 30: 전기모터
31: 전기배터리 32: 배터리박스
33: 모터축 40: 회전 속도센서
50: 오일 온도센서 60: 동력차단장치1: Special Vehicle 2: Engine
3: input shaft 4: front wheel
5: front output shaft 6: rear wheel
7: rear output shaft 10: transmission
20: transfer case 21: main shaft
22: intermediate shaft 23: driven shaft
24: electronic clutch 25: high speed gear
26: low gear 27, 27a: idle gear
28: driven gear 30: electric motor
31: electric battery 32: battery box
33: motor shaft 40: rotational speed sensor
50: oil temperature sensor 60: power cut-off device

Claims (7)

엔진(2)에 의해 에어 콤프레셔를 작동시켜 발생한 압축공기를 이용하여 제동하는 디젤 특장차량(1)에 있어서,
상기 엔진(2)에서 발생하는 동력을 속도에 따라 필요한 회전력으로 바꾸어 전달하는 변속기(10)와;
상기 변속기(10)와 인풋 샤프트(3)를 매개로 연결되고, 인풋 샤프트(3)를 통해 입력된 동력을 분배하여 전륜(4) 구동을 위한 프론트 아웃풋 샤프트(5) 및 후륜(6) 구동을 위한 리어 아웃풋 샤프트(7)로 각각 전달하는 트랜스퍼 케이스(20)와;
상기 트랜스퍼 케이스(20)에 부착되고, 상기 트랜스퍼 케이스(20) 내부의 중간축(22)에 선택적으로 동력을 전달하여 하이브리드 방식으로 저속주행을 하도록 하는 전기모터(30)로 이루어지는 한편;
상기 전기모터(30)의 구동시에는 정상적인 제동을 위해 엔진(2)의 공회전을 유지함과 아울러 변속기(10)의 중립을 유지하여 전기모터(30)의 구동력이 엔진(2)으로 전달됨을 방지하고;
상기 트랜스퍼 케이스(20)의 내부 상측에는 인풋 샤프트(3)와 연결된 주축(21)이 회전가능하게 설치되고, 상기 주축(21)의 회전동력을 기어조합을 통해 전달받는 중간축(22)이 설치됨과 아울러 중간축(22)은 전기모터(30)와 직결되며, 상기 중간축(22)의 회전동력을 기어조합을 통해 전달받는 종동축(23)이 설치되는 한편, 상기 종동축(23)의 전후 양측에는 각각 프론트 아웃풋 샤프트(5) 및 리어 아웃풋 샤프트(7)가 연결되고;
상기 주축(21)의 중앙에는 양측으로 선택하여 맞물림 접속 가능한 전자클러치(24)가 일체로 설치되고, 상기 전자클러치(24)의 양측에는 고속기어(25) 및 저속기어(26)가 각각 회전 자유롭게 설치되며, 상기 중간축(22)의 양측에는 각각 고속기어(25) 및 저속기어(26)와 치합되어 연동 회전하는 한 쌍의 아이들기어(27)(27a)가 일체로 설치되고, 상기 어느 한쪽의 아이들기어(27a)는 종동축(23)에 형성된 종동기어(28)와 치합되는 한편;
상기 전자클러치(24)는 전기모터(30)의 작동이 불가한 위급상황 시 저속기어(26)와 맞물림 접속되면서 엔진(2) 구동에 의한 저속주행을 가능하게 하는 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
In a diesel special vehicle (1) that brakes using compressed air generated by operating an air compressor by an engine (2),
a transmission 10 that converts the power generated from the engine 2 into rotational force required according to speed and transmits it;
The transmission 10 is connected via the input shaft 3, and power input through the input shaft 3 is distributed to drive the front output shaft 5 and the rear wheels 6 for driving the front wheels 4. a transfer case 20 for transmitting to the rear output shaft 7 for each;
An electric motor 30 attached to the transfer case 20 and selectively transmitting power to the intermediate shaft 22 inside the transfer case 20 to drive at low speed in a hybrid manner;
When the electric motor 30 is driven, the engine 2 is kept idle for normal braking and the transmission 10 is kept neutral to prevent the driving force of the electric motor 30 from being transmitted to the engine 2, ;
A main shaft 21 connected to the input shaft 3 is rotatably installed on the inside upper side of the transfer case 20, and an intermediate shaft 22 that receives rotational power of the main shaft 21 through a gear combination is installed In addition, the intermediate shaft 22 is directly connected to the electric motor 30, and a driven shaft 23 receiving rotational power of the intermediate shaft 22 through a gear combination is installed, while the driven shaft 23 Front and rear output shafts 5 and 7 are respectively connected to both sides;
At the center of the main shaft 21, an electronic clutch 24 capable of meshing connection by selecting both sides is integrally installed, and on both sides of the electronic clutch 24, a high gear 25 and a low gear 26 rotate freely, respectively. installed, on both sides of the intermediate shaft 22, a pair of idle gears 27 and 27a meshed with the high speed gear 25 and the low speed gear 26 to rotate interlockingly are integrally installed, and either On the other hand, the idle gear (27a) is engaged with the driven gear 28 formed on the driven shaft 23;
The electronic clutch 24 meshes with the low gear 26 in an emergency situation in which the operation of the electric motor 30 is impossible, enabling low-speed driving by driving the engine 2, characterized in that hybrid eco-friendly Multi-purpose road management vehicle.
 제 1항에 있어서,
상기 전기모터(30)에는 회전 속도센서(40)가 설치되고, 상기 회전 속도센서(40)를 통해 측정된 모터 회전수를 연산해서 전류를 제어하여, 상기 전기모터(30)를 가속/감속하면서 저속주행에 필요한 일정한 속도를 유지하는 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
According to claim 1,
A rotational speed sensor 40 is installed in the electric motor 30, and the motor speed measured through the rotational speed sensor 40 is calculated and current is controlled to accelerate/decelerate the electric motor 30. A hybrid eco-friendly multi-purpose road management vehicle for special vehicles characterized in that it maintains a constant speed required for low-speed driving.
 제 1항에 있어서,
상기 트랜스퍼 케이스(20)에는 오일 온도센서(50)가 설치되고, 상기 오일 온도센서(50)는 전기모터(30)의 작동에 따른 트랜스퍼 케이스(20) 내의 오일 온도 상승을 감지하여 설정온도 이상에 도달시 경고를 표시하여 전기모터(30)를 보호하는 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
According to claim 1,
An oil temperature sensor 50 is installed in the transfer case 20, and the oil temperature sensor 50 detects an increase in the oil temperature in the transfer case 20 according to the operation of the electric motor 30 and reaches a temperature higher than a set temperature. A hybrid eco-friendly multi-purpose road management vehicle for special vehicles, characterized in that it protects the electric motor (30) by displaying a warning upon arrival.
 제 1항에 있어서,
상기 전기모터(30)의 구동에 의한 저속주행시 전기모터(30)와 연동이 안 되는 브레이크의 제동신호를 받으면 상기 전기모터(30)의 출력을 내려주어 과부하 및 파손을 방지함과 아울러 제동신호가 끊기면 원래의 전기모터(30) 회전수로 출력을 올려주어 저속주행을 원활하게 지속하는 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
According to claim 1,
When driving at low speed by driving the electric motor 30 and receiving a braking signal from a brake that does not interlock with the electric motor 30, the output of the electric motor 30 is lowered to prevent overload and damage, and the braking signal A hybrid eco-friendly multi-purpose road management vehicle for special vehicles, characterized in that when cut off, the output is raised to the original number of revolutions of the electric motor (30) to smoothly continue the low-speed driving.
 제 1항에 있어서,
상기 전기모터(30)의 구동에 의한 내리막길 주행시 특장차량(1)의 중량과 가속력에 의해 전기모터(30)의 회전속도보다 높아지는 전륜(4) 및 후륜(6)의 속도를 감지하면 자동으로 전륜(4) 및 후륜(6)에서 전기모터(30)로 동력이 역방향으로 전달됨을 차단하여 전기모터(30)를 보호하는 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
According to claim 1,
When driving downhill by the driving of the electric motor 30, when the speed of the front wheels 4 and the rear wheels 6, which are higher than the rotational speed of the electric motor 30 due to the weight and acceleration of the special vehicle 1, is detected, A hybrid eco-friendly multi-purpose road management vehicle for a special vehicle, characterized in that it protects the electric motor (30) by blocking the reverse transmission of power from the front wheels (4) and the rear wheels (6) to the electric motor (30).
 제 5항에 있어서,
상기 전기모터(30)의 모터축(33) 및 중간축(22)의 사이에는 동력차단장치(60)가 연결 설치된 것을 특징으로 하는 특장차량용 하이브리드 친환경 다목적 도로관리차.
According to claim 5,
A hybrid eco-friendly multipurpose road management vehicle for a special vehicle, characterized in that a power cut-off device 60 is connected and installed between the motor shaft 33 and the intermediate shaft 22 of the electric motor 30.
 삭제delete
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KR102628971B1 (en) 2023-08-23 2024-01-24 리텍 주식회사 Multi-purpose road management vehicle with selective front-wheel drive using hydraulic drive system

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KR20140016036A (en) * 2012-07-30 2014-02-07 이진국 Hybrid equipment of a truck
KR101938208B1 (en) * 2018-12-10 2019-01-14 이텍산업 주식회사 AWD vehicle ultra low-speed running system

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KR20010035584A (en) * 1999-10-01 2001-05-07 이계안 Transfer case
JP2002274208A (en) * 2001-02-06 2002-09-25 Borgwarner Inc Transfer case with temperature compensation
KR20110044565A (en) * 2009-10-23 2011-04-29 현대자동차주식회사 System and method for controlling regeneration torque of hybrid vehicle
KR20140016036A (en) * 2012-07-30 2014-02-07 이진국 Hybrid equipment of a truck
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102628971B1 (en) 2023-08-23 2024-01-24 리텍 주식회사 Multi-purpose road management vehicle with selective front-wheel drive using hydraulic drive system

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