KR20230004385A - Power generation system for electric vehicle - Google Patents

Power generation system for electric vehicle Download PDF

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KR20230004385A
KR20230004385A KR1020220177295A KR20220177295A KR20230004385A KR 20230004385 A KR20230004385 A KR 20230004385A KR 1020220177295 A KR1020220177295 A KR 1020220177295A KR 20220177295 A KR20220177295 A KR 20220177295A KR 20230004385 A KR20230004385 A KR 20230004385A
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battery
electric vehicle
generator
flywheel
driving
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김민종
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김민종
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    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/30—Electric propulsion with power supplied within the vehicle using propulsion power stored mechanically, e.g. in fly-wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1846—Rotary generators structurally associated with wheels or associated parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/91—Battery charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/16—Mechanic energy storages
    • B60Y2400/162—Flywheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

According to the present invention, a power generation system for an electric vehicle during coasting enables an electronic clutch and a flywheel to be mounted between a driving motor and a generator of an electric vehicle to generate power during constant speed driving or braking and regenerative braking. Moreover, the present invention comprises: a control unit controlling generation of power; and a battery unit having a first battery and a second battery connected to be divided from the first battery. One between the first battery and the second battery is provided to be replaceable when completely discharged.

Description

전기차의 타력 발전시스템{POWER GENERATION SYSTEM FOR ELECTRIC VEHICLE}Inertial power generation system for electric vehicles {POWER GENERATION SYSTEM FOR ELECTRIC VEHICLE}

본 발명은, 발전시스템에 관한 것으로서, 보다 상세하게는, 전기차의 주행 중 충전이 가능하고 안전하게 충전을 할 수 있는 전기차의 타력 발전시스템에 관한 것이다.The present invention relates to a power generation system, and more particularly, to an inertial power generation system for an electric vehicle capable of charging the electric vehicle while driving and safely charging the electric vehicle.

최근 화석에너지 소모량의 증가에 의하여 대기 중 이산화탄소, 일산화탄소, 질소산화물, 미세먼지 등의 대기오염 물질 배출량의 증가와 더불어 심각한 대기 오염을 유발하고 있다. 대기 오염에 따른 지구 온난화와 기후변화는 전세계 곳곳의 다양한 지역에서 폭우, 폭설, 가뭄, 폭서, 한파 등 다양한 기상이변을 발생시키고 있다. 이러한 기상이변과 기후변화의 위협은 국제사회의 매우 중요한 이슈이다.Due to the recent increase in fossil energy consumption, air pollutant emissions such as carbon dioxide, carbon monoxide, nitrogen oxides, and fine dust in the air increase and cause serious air pollution. Global warming and climate change due to air pollution are causing various extreme weather events such as heavy rain, heavy snowfall, drought, heavy heat, and cold waves in various regions around the world. The threat of extreme weather and climate change is a very important issue for the international community.

각국의 환경 정책과 그에 따른 연구개발 분위기에서, 화석연료의 사용을 최소화하면서 차량의 연비를 극대화하고자 하는 에너지 효율 제고 분야에 대한 연구가 활발히 진행되고 있다.In the environment policy of each country and the R&D atmosphere therefor, research on the field of energy efficiency improvement to maximize the fuel efficiency of vehicles while minimizing the use of fossil fuels is being actively conducted.

또한, 차량 기술의 발달에 따라 하이브리드 전기차(HEV), 플러그인 하이브리드 전기차(PHEV), 전기차(EV), 연료전지전기차(FCEV) 등의 신에너지 자동차 분야의 기술 발전이 상당한 성과를 보이고 있으며 전세계적으로 친환경자동차 보급이 상당히 확대되고 있다.In addition, with the development of vehicle technology, technological advances in the field of new energy vehicles such as hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), electric vehicles (EV), and fuel cell electric vehicles (FCEV) are showing significant achievements, and worldwide The supply of eco-friendly vehicles is considerably expanding.

풍력, 수력, 태양광 등 청정에너지원을 이용하여 전기를 생산하고 생산된 전기를 사용하여 구동하는 전기차에 많은 연구개발이 진행되고 있다. 전기차의 경우, 주행거리를 확장하기 위한 주행거리 확장 장치와, 동일 중량에서 배터리 용량을 증가시키기 위한 연구 등 다양한 분야의 지속적인 노력을 통해 배터리용량 30㎾h 이하의 전기차에서 1회 충전에 주행거리 최대 400㎞ 정도를 달성하고 있다.A lot of research and development is being conducted on electric vehicles that generate electricity using clean energy sources such as wind power, hydroelectric power, and solar power, and operate using the generated electricity. In the case of electric vehicles, through continuous efforts in various fields, such as a mileage extension device to extend the mileage and research to increase the battery capacity at the same weight, an electric vehicle with a battery capacity of 30kwh or less achieves maximum mileage on a single charge. It has reached about 400 km.

또한, 다양한 형태의 외부 충전에 의해 전기차의 주행거리를 500㎞ 내지 700㎞로 확장하기 위한 연구개발 노력이 다양한 기술분야에서 추진 중에 있다. 아울러 전기차의 빠른 보급확대를 위해 전기차의 충전시간 단축 방안 및 충전소 등과 같은 사회적 인프라 확충에 대한 연구개발도 활발히 진행 중에 있다.In addition, research and development efforts to extend the driving range of electric vehicles to 500 km to 700 km by various types of external charging are being promoted in various technical fields. In addition, in order to rapidly expand the supply of electric vehicles, research and development on the expansion of social infrastructure such as electric vehicle charging time reduction plans and charging stations are actively underway.

그러나 전기차에서 생산되는 운동에너지를 이용하여 전기차 내에서 자가발전하는 연구개발은 아직까지 미미한 실정이다.However, research and development of self-power generation within an electric vehicle using kinetic energy produced by the electric vehicle is still insignificant.

특히, 전기차의 주행 중 발전기를 동시에 가동 시키면 발전기의 전자기적 저항으로 인해 오히려 주행 모터의 전기적 손실이 더 크므로 전기차의 발전과 충전 방법은 오로지 회생 제동에 의해 이루어 졌다.In particular, when the generator is simultaneously operated while the electric vehicle is running, the electric loss of the driving motor is rather large due to the electromagnetic resistance of the generator, so the electric power generation and charging method of the electric vehicle is performed only by regenerative braking.

전술한 기술구성은 본 발명의 이해를 돕기 위한 배경기술로서, 본 발명이 속하는 기술분야에서 널리 알려진 종래 기술을 의미하는 것은 아니다.The foregoing technical configuration is a background technology for helping understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

한국공개특허공보 제2020-0057282호(안상록) 2020. 05. 26.Korean Patent Publication No. 2020-0057282 (Ahn Sang-rok) 2020. 05. 26.

따라서 본 발명이 이루고자 하는 기술적 과제는, 주행 중 충전을 가능케 하고 또한 안전하게 충전을 할 수 있고 완전 방전시 배터리 일부를 교체할 수 있는 전기차의 타력 발전시스템을 제공하는 것이다.Therefore, a technical problem to be achieved by the present invention is to provide an inertial power generation system for an electric vehicle that enables charging while driving, safely charging, and replacing part of a battery when fully discharged.

본 발명의 일 측면에 따르면, 전기차의 구동 모터와 전기를 발생시키는 발전기 사이에 클러치와 플라이휠을 두어 모터 회전력으로 올라간 플라이휠을 전자식 클러치로 분리시켜 플라이휠의 회전력으로 발전기에 전원을 연결하여 발전을 하는 방식으로 회생제동과 같지만 다른 발전 방식이다,According to one aspect of the present invention, a method of generating electricity by placing a clutch and a flywheel between a drive motor of an electric vehicle and a generator that generates electricity, separating the flywheel raised by the rotational force of the motor with an electronic clutch, and connecting power to the generator with the rotational force of the flywheel. It is the same as regenerative braking, but with a different power generation method.

그리고 상기 제1 배터리와 구획되게 연결되는 제2 배터리가 구비된 배터리부를 포함하고, 상기 제1 배터리 및 상기 제2 배터리 중 하나는 구동 모터에 전력을 공급하고 나머지 하나는 주행중 충전을 담당한다.and a battery unit having a second battery connected to the first battery in a distinct manner, wherein one of the first battery and the second battery supplies power to a driving motor and the other battery is charged while driving.

그리고 인버터 제어부에서 서로 충전쪽과 방전쪽 용량이 10 ~ 20% 차이시 교차 시킬 수 있다.In the inverter control unit, when the capacity of the charging side and the discharging side differ from each other by 10 to 20%, it can be crossed.

또한 두 배터리가 완전 방전시 제2 배터리는 규격화 되어 교체가 가능하게 하여 차량 운행을 좀더 원활하게 할 수 있는 전기차의 타력 발전시스템이 제공될 수 있다.In addition, when the two batteries are completely discharged, the second battery is standardized and replaceable, so that a coasting power generation system of an electric vehicle can be provided that can more smoothly drive the vehicle.

상기 구동 모터와 상기 발전기는 상기 전기차의 전륜 및 후륜의 주행모터 회전축에 직결되어 마련될 수 있다.The drive motor and the generator may be directly connected to rotational shafts of the driving motors of the front and rear wheels of the electric vehicle.

상기 전륜측 구동 모터 회전축에 마련되는 감속기 상기 감속기와 상기 감속기의 타측부에 마련되는 전자식 클러치; 상기 전자식 클러치의 일측부에 마련되는 플라이휠 플라이휠에 연결된 발전기 및 상기 구동 모터 및 상기 발전기와 전기적으로 연결되도록 상기 전기차에 마련되는 인버터 제어부를 더 포함하고, 상기 제1 배터리와 상기 제2 배터리는 상기 인버터 제어부에 연결될 수 있다.an electromagnetic clutch provided on the other side of the speed reducer and the speed reducer provided on the rotation shaft of the front wheel-side drive motor; A generator connected to a flywheel provided on one side of the electromagnetic clutch and an inverter control unit provided in the electric vehicle to be electrically connected to the drive motor and the generator, wherein the first battery and the second battery are connected to the inverter It can be connected to the control unit.

상기 전기차의 주행 중에는 상기 플라이휠과 상기 전자식 클러치를 이용하여 상기 구동 모터의 회전수와 같은 회전수로 상기 발전기의 회전수를 상승시킬 수 있다.While the electric vehicle is running, the rotational speed of the generator may be increased at the same rotational speed as the driving motor using the flywheel and the electromagnetic clutch.

상기 전기차의 주행 속도가 정속 주행이거나 브레이크 작동때 상기 전자식 클러치를 사용해 상기 플라이휠을 분리시켜 분리된 상기 플라이휠의 회전력으로 상기 발전기를 발전시킬 수 있다.When the driving speed of the electric vehicle is constant speed or the brake is applied, the electric clutch is used to separate the flywheel, and the generator can be generated with rotational force of the separated flywheel.

본 발명의 실시예들은, 제1 배터리 및 제2 배터리 중 제1 배터리는 고정용으로 사용되고 나머지 하나는 규격화되어 있어서 모든 배터리가 방전시 교체 가능하게 마련되어 주행 중 충전이 가능하고 또한 안전하게 충전을 할 수 있으며 완전 방전시 규격화된 제2 배터리를 완충된 배터리로 교체할 수 있다Embodiments of the present invention, the first battery of the first battery and the second battery is used for a fixed purpose and the other one is standardized so that all batteries can be replaced when discharged so that they can be charged while driving and can be safely charged. When completely discharged, the standardized second battery can be replaced with a fully charged battery.

도 1은 본 발명의 일 실시예에 따른 전기차의 타력 발전시스템을 개략적으로 도시한 도면이다.1 is a diagram schematically showing an inertial power generation system for an electric vehicle according to an embodiment of the present invention.

본 발명과 본 발명의 동작상의 이점 및 본 발명의 실시에 의하여 달성되는 목적을 충분히 이해하기 위해서는 본 발명의 바람직한 실시 예를 예시하는 첨부 도면 및 첨부 도면에 기재된 내용을 참조하여야만 한다.In order to fully understand the present invention and the advantages in operation of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 설명함으로써, 본 발명을 상세히 설명한다. 각 도면에 제시된 동일한 참조부호는 동일한 부재를 나타낸다.Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like members.

도 1은 본 발명의 일 실시예에 따른 전기차의 타력 발전시스템을 개략적으로 도시한 도면이다.1 is a diagram schematically showing an inertial power generation system for an electric vehicle according to an embodiment of the present invention.

이 도면에 도시된 바와 같이, 본 실시예에 따른 전기차의 타력 발전시스템(1)은 전기차의 바퀴(100)에 구동력을 발생시키는 구동 모터(10)와, 바퀴(100)를 연결하는 회전축의 회전력을 기초로 전기를 발생시키는 발전기(20)와, 발전기(20)와 제어부(400)를 통해 전기적으로 연결되는 배터리부(30)와, 전기차의 전륜 회전축(200)에 마련되는 감속기(40)와, 감속기(40)의 타측부에 마련되는 클러치(50)와, 클러치(50)의 일측부에 마련되는 플라이휠(60)과, 구동 모터(10) 및 발전기(20)와 전기적으로 연결되도록 전기차에 마련되는 제어부(70)를 구비할 수 있다.As shown in this figure, the inertial power generation system 1 of an electric vehicle according to this embodiment has a driving motor 10 generating driving force to wheels 100 of an electric vehicle and a rotational force of a rotating shaft connecting the wheels 100. A generator 20 that generates electricity based on, a battery unit 30 electrically connected through the generator 20 and the control unit 400, and a reducer 40 provided on the front wheel rotation shaft 200 of the electric vehicle , the clutch 50 provided on the other side of the reducer 40, the flywheel 60 provided on one side of the clutch 50, the drive motor 10, and the generator 20 are electrically connected to the electric vehicle. A control unit 70 may be provided.

구동 모터(10)는, 도 1에 도시된 바와 같이, 전방에 배치되는 한 쌍의 바퀴(100)를 연결하는 전륜 회전축(200)에 마련될 수 있으며 전륜 회전축(200)을 회전시킬 수 있다.As shown in FIG. 1 , the drive motor 10 may be provided on the front wheel rotation shaft 200 connecting the pair of wheels 100 disposed in the front and rotate the front wheel rotation shaft 200.

본 실시 예에서 구동 모터(10)는, 도 1에 도시된 바와 같이, 제어부(70)를 통해 배터리부(30)의 제1 배터리(31) 또는 제2 배터리(32) 중 하나의 배터리와만 전기적으로 연결되어 구동에 필요한 전기 에너지를 공급받을 수 있다.In this embodiment, as shown in FIG. 1 , the driving motor 10 is only connected to one of the first battery 31 or the second battery 32 of the battery unit 30 through the control unit 70. It is electrically connected to receive electric energy required for driving.

발전기(20)는, 도 1에 도시된 바와 같이, 플라이휠(60)에 연결되게 마련될 수 있고 플라이휠(60)의 회전력을 기초로 전기 에너지를 발생시킬 수 있다.As shown in FIG. 1 , the generator 20 may be provided to be connected to the flywheel 60 and generate electrical energy based on the rotational force of the flywheel 60 .

본 실시 예의 발전기(20)에서 생성되는 전기 에너지는 제어부(70)를 통해 충전되는 배터리인 제2 배터리(32)로 공급될 수 있다.Electrical energy generated by the generator 20 of this embodiment may be supplied to the second battery 32, which is a battery charged through the control unit 70.

본 실시 예에서 발전기(20)는 전기차의 주행 속도가 정속 주행 및 브레이크 작동 시 클러치(50) 예를 들어 전자식 클러치에 의해 분리되는 플라이휠(60)에 연결되어 플라이휠(60)의 회전력을 기초로 발전될 수 있다. 구체적으로 전기차의 구동 모터(10)로 주행 중 플라이휠(60)과 클러치(50)를 사용하여 전기차의 주행 속도에 따른 구동 모터(10)의 회전수와 발전기(20)의 회전수를 같이 올려준다. 이때에 발전기(20)엔 전원이 단락 되어 전자기적 저항이 없는 상태이다. 이 경우 10km/h 당 600rpm씩 증가하므로 예로 60km/h 일 때 약 3600rpm이 나오는데 이 속도를 유지할 시 전자식 클러치를 사용하여 구동 모터(10)와 플라이휠(60)을 분리시킨다. 분리된 후 전원을 공급하여 플라이휠(60)의 회전력으로 발전을 시킨다. 본 실시 예에서 발전기(20)는 교류 발전기를 포함하고 교류 발전기는 400rpm부터 기본적인 발전이 이루어질 수 있다.In this embodiment, the generator 20 is connected to the flywheel 60, which is separated by the clutch 50, for example, an electronic clutch, when the driving speed of the electric vehicle is driven at constant speed and the brake is applied, and power is generated based on the rotational force of the flywheel 60. It can be. Specifically, while driving with the driving motor 10 of the electric vehicle, the rotational speed of the driving motor 10 and the rotational speed of the generator 20 are raised together using the flywheel 60 and the clutch 50 according to the driving speed of the electric vehicle. . At this time, the generator 20 is short-circuited and has no electromagnetic resistance. In this case, since it increases by 600 rpm per 10 km/h, for example, about 3600 rpm comes out at 60 km/h. When maintaining this speed, the drive motor 10 and the flywheel 60 are separated using an electronic clutch. After separation, power is supplied to generate power with the rotational force of the flywheel (60). In this embodiment, the generator 20 includes an alternator, and the alternator may generate basic power from 400 rpm.

배터리부(30)는, 도 1에 도시된 바와 같이, 인버터 제어부(70)와 연결되며 서로 구획되게 배치되는 제1 배터리(31)와 제2 배터리(32)를 포함한다.As shown in FIG. 1 , the battery unit 30 includes a first battery 31 and a second battery 32 connected to the inverter control unit 70 and disposed to be partitioned from each other.

본 실시 예에서 제1 배터리(31) 및 제2 배터리(32) 중 하나의 배터리는 구동과 회생 제동을 사용하여 운행용으로 사용될 수 있고, 나머지 하나의 배터리는 발전기(20)에서 생성되는 전기 에너지를 공급받아 충전될 수 있다.In this embodiment, one battery of the first battery 31 and the second battery 32 can be used for driving using driving and regenerative braking, and the other battery is electrical energy generated by the generator 20. can be supplied and charged.

본 실시 예는 제1 배터리(31) 및 제2 배터리(32)를 분할하여 주행 중 충전측 배터리에 상시 충전을 할 수 있도록 함으로써 회생 제동에 의한 미미한 충전량을 극복하여 더 많은 충전량을 확보할 수 있고 이로 인해 운행 거리를 비약적으로 늘일 수 있다.In this embodiment, by dividing the first battery 31 and the second battery 32 so that the charging side battery can be constantly charged while driving, it is possible to overcome the insignificant amount of charge due to regenerative braking and secure more charge. This can drastically increase the driving distance.

또한, 본 실시 예에서 규격화된 제2 배터리(32)는 두 배터리가 완전 방전시에 교체가 가능하다.In addition, the second battery 32 standardized in this embodiment can be replaced when the two batteries are fully discharged.

나아가, 본 실시 예에서 제1 배터리(31)와 제2 배터리(32)의 용량이 현저하게 차이가 나면 제어부(70)에서 같은 용량이 될 때까지 충전과 방전을 고정시킬 수 있다.Furthermore, in this embodiment, if the capacities of the first battery 31 and the second battery 32 are significantly different, the controller 70 may fix charge and discharge until the capacities become the same.

본 실시 예의 기계적 구조는 구동 모터(10)와 발전기(20)의 사이에 전자식 클러치(50)와 플라이휠(60)을 사용하여 연결과 분리를 할 수 있다.In the mechanical structure of this embodiment, connection and separation can be performed between the drive motor 10 and the generator 20 using the electromagnetic clutch 50 and the flywheel 60.

본 실시 예에서 플라이휠(60)의 무게와 크기는 발전기(20)의 용량에 맞추어 조절할 수 있다.In this embodiment, the weight and size of the flywheel 60 can be adjusted according to the capacity of the generator 20.

본 실시 예의 원리는 주행 중 구동 모터(10)의 회전 rpm이 올라 갈 때에 발전기(20)는 회로를 단락시켜 전자기적 저항이 없도록 하여 구동 모터(10)의 회전 rpm이 원하는 주행속도에 맞는 평균치 회전까지 쉽게 올라가도록 할 수 있다. 예를 들어 시속 60km 시 약 3600rpm으로 속도가 유지 된다면 구동 모터(10)와 플라이휠(60)에 연결된 발전기(20)를 전자식 클러치(50)를 사용해 단절시키고 제어부(70)는 발전기(20)에 발전 회로를 연결할 수 있다.The principle of the present embodiment is that when the rotational rpm of the drive motor 10 rises while driving, the generator 20 shorts the circuit so that there is no electromagnetic resistance, so that the rotational rpm of the drive motor 10 rotates the average value matching the desired travel speed You can easily climb up to . For example, if the speed is maintained at about 3600 rpm at 60 km per hour, the drive motor 10 and the generator 20 connected to the flywheel 60 are disconnected using the electromagnetic clutch 50, and the control unit 70 generates power to the generator 20 circuits can be connected.

분리된 플라이휠(60)은 구동 모터(10)와 같은 회전 rpm을 가지고 있는데 이 회전력을 사용하여 발전기(20)를 발전시킬 수 있다.The separated flywheel 60 has the same rotational rpm as the drive motor 10, and the generator 20 can be generated using this rotational force.

발전기(20)는 발전시 전자기적 저항으로 회전력이 떨어지는데 정속 주행 시 약 20% 감소인 2400rpm으로 감소하면 발전기(20)의 회로를 차단시켜서 저항을 상쇄하고 발전을 중단 시킨다. 다시 전자식 클러치(50)를 이용하여 플라이휠(60)에 연결하여 구동 모터(10)의 rpm 으로 발전기(20)를 같은 회전수로 올려준다. 구동 모터(10)의 rpm이 발전기(20)의 rpm과 20 ~ 30% 차이가 나면 발전 회로를 차단하여 연결시키고, 구동 모터(10) rpm의 유지나 브레이크 작동 시에 분리 후 회로를 연결하여 발전을 유도하고 회생 제동시에는 구동 모터(10)와 연결된 상태로 발전을 한다.The generator 20 loses rotational power due to electromagnetic resistance during power generation. When the speed decreases to 2400 rpm, which is about 20% reduction during constant speed driving, the circuit of the generator 20 is cut off to cancel the resistance and stop power generation. Again, by connecting to the flywheel 60 using the electromagnetic clutch 50, the generator 20 is raised at the same rotational speed at the rpm of the drive motor 10. When the rpm of the drive motor 10 differs from the rpm of the generator 20 by 20 to 30%, the power generation circuit is cut off and connected, and the circuit is connected after disconnection when the rpm of the drive motor 10 is maintained or the brake is applied to generate power. Induction and regenerative braking generate power while connected to the driving motor 10.

이 경우 구동 모터(10)에 직접 연결하여 주행중 전기를 연결하여 발전을 하는 것보다 발전 효율은 떨어지나 그로 인해 오히려 많이 소비되는 전기적 손실을 방지할 수 있고, 주기적으로 발전과 충전을 할 수 있기에 간헐적으로 사용되는 회생 제동 보다 많은 전기를 충전 할 수 있다.In this case, the power generation efficiency is lower than that of generating power by connecting electricity while driving by directly connecting to the driving motor 10, but it is possible to prevent electrical loss that is consumed rather much, and it is possible to generate and charge periodically, so that intermittent It can charge more electricity than the regenerative braking used.

또한 운행 중에 반복적으로 충전이 이루어져 1개의 배터리로 구동과 충전을 동시에 할 때 혹시 모를 과열로 인한 폭발 사고를 미연에 방지하기 위하여 같은 용량의 배터리를 2개 사용하여 구동 모터(10) 구동측 배터리와 충전 측 배터리를 분리하여 사용한다. 본 실시 예에서 구동측 배터리는 제1 배터리(31)일 수 있고, 충전 측 배터리는 제2 배터리(32)일 수 있다.In addition, in order to prevent an explosion accident due to possible overheating when driving and charging with one battery at the same time due to repeated charging during driving, two batteries of the same capacity are used to Remove and use the battery on the charging side. In this embodiment, the driving side battery may be the first battery 31 and the charging side battery may be the second battery 32 .

이와 같이 본 발명은 기재된 실시 예에 한정되는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형할 수 있음은 이 기술의 분야에서 통상의 지식을 가진 자에게 자명하다. 따라서 그러한 수정 예 또는 변형 예들은 본 발명의 특허청구범위에 속한다 하여야 할 것이다.As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

1 : 전기차의 타력 발전시스템
10 : 구동 모터 20 : 발전기
30 : 배터리부 31 : 제1 배터리
32 : 규격화된 제2 배터리 40 : 감속기
50 : 전자식 클러치 60 : 플라이휠
70 : 제어부 100 : 바퀴
200 : 전륜 회전축1: Inertial power generation system for electric vehicles
10: drive motor 20: generator
30: battery unit 31: first battery
32: standardized second battery 40: reducer
50: electronic clutch 60: flywheel
70: control unit 100: wheel
200: front wheel rotation axis

Claims (1)

구동 모터에 연결되는 클러치, 플라이휠 및 발전기를 포함하고,
제1 배터리 및 상기 제1 배터리와 구획되게 연결되는 제2 배터리가 구비된 배터리부; 및
상기 구동 모터 및 상기 발전기와 전기적으로 연결되도록 상기 전기차에 마련되는 제어부를 더 포함하고,
상기 제1 배터리 및 상기 제2 배터리 중 하나는 고정용으로 나머지 하나는 방전시 교체 가능하게 마련되고,
상기 제1 배터리와 상기 제2 배터리는 상기 제어부에 연결되고,
상기 전기차의 주행 중에는 상기 플라이휠과 상기 클러치를 이용하여 상기 구동 모터의 회전수와 상기 발전기의 회전수를 상승시키고,
상기 전기차의 주행 속도가 정속 주행 또는 브레이크 작동 시 상기 클러치를 사용 상기 플라이휠을 분리시켜 분리된 상기 플라이휠의 회전력으로 상기 발전기를 발전시키는 전기차의 타력 발전시스템.a clutch, flywheel and generator connected to the drive motor;
a battery unit having a first battery and a second battery connected to the first battery in a distinct manner; and
Further comprising a control unit provided in the electric vehicle to be electrically connected to the driving motor and the generator,
One of the first battery and the second battery is provided for fixation and the other is replaceable when discharging,
The first battery and the second battery are connected to the controller,
While the electric vehicle is running, the rotational speed of the drive motor and the rotational speed of the generator are increased using the flywheel and the clutch,
When the driving speed of the electric vehicle is constant speed driving or brake operation, the clutch is used to separate the flywheel, and the generator is generated with the rotational force of the separated flywheel.
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