KR20210004083A - Apparatus for charging electric vehicle while driving - Google Patents

Apparatus for charging electric vehicle while driving Download PDF

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KR20210004083A
KR20210004083A KR1020190079934A KR20190079934A KR20210004083A KR 20210004083 A KR20210004083 A KR 20210004083A KR 1020190079934 A KR1020190079934 A KR 1020190079934A KR 20190079934 A KR20190079934 A KR 20190079934A KR 20210004083 A KR20210004083 A KR 20210004083A
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South Korea
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electric vehicle
air
charging
speed
battery
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KR1020190079934A
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Korean (ko)
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이영호
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르노삼성자동차 주식회사
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Priority to KR1020190079934A priority Critical patent/KR20210004083A/en
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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
    • B60L8/00—Electric propulsion with power supply from forces of nature, e.g. sun or wind
    • B60L8/006—Converting flow of air into electric energy, e.g. by using wind turbines
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—Batteries
    • 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
    • B60K16/00—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind
    • 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
    • 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
    • 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
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/52—Wind-driven generators
    • 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
    • B60K16/00—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind
    • B60K2016/006—Arrangements in connection with power supply of propulsion units in vehicles from forces of nature, e.g. sun or wind wind power driven
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—Speed
    • 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
    • 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
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/90—Energy harvesting concepts as power supply for auxiliaries' energy consumption, e.g. photovoltaic sun-roof
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power 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

The present invention relates to the constant charging of an electric vehicle battery. More particularly, the present invention relates to a battery charger for an electric vehicle, which accelerates the air flow even when the speed of an electric vehicle is low by an air flap that controls the air flow, so that a charging fan rotates sufficiently even at low speed to charge the battery and thus increase the driving distance.

Description

주행중 전기자동차 충전 장치{APPARATUS FOR CHARGING ELECTRIC VEHICLE WHILE DRIVING}Electric vehicle charging device while driving {APPARATUS FOR CHARGING ELECTRIC VEHICLE WHILE DRIVING}

본 발명은 전기자동차에 관한 것으로, 특히 전기자동차의 충전에 관한다. The present invention relates to an electric vehicle, and more particularly to charging of an electric vehicle.

내연기관 자동차는 배기가스를 배출하고, 이 배기가스는 지구온난화 등 기후이상의 원인으로 지목되고 있다. 따라서 환경보호를 위해 배기가스가 없는 전기자동차가 주목을 받고 있다. Automobiles with internal combustion engines emit exhaust gas, and this exhaust gas is pointed out as a cause of climate abnormalities such as global warming. Therefore, electric vehicles without exhaust gas are attracting attention to protect the environment.

하지만 아직까지는 비싼 가격과 짧은 주행거리 등의 문제로 전기자동차가 널리 보급되지는 못하고 있는 실정이다. 이에 대한 대안으로 엔진과 모터를 함께 사용하는 하이브리드 방식의 자동차도 개발되어 판매되고 있다. However, electric vehicles have not been widely distributed due to problems such as high price and short mileage. As an alternative to this, a hybrid vehicle that uses both an engine and a motor has also been developed and sold.

하이브리드 자동차는 모터 구동을 위한 배터리를 더 포함하고 회생제동이라는 기술을 이용하여 자동차가 감속할 때 모터의 회전에너지를 배터리에 저장하여 가속 시 사용한다. The hybrid vehicle further includes a battery for driving the motor and uses a technology called regenerative braking to store the rotational energy of the motor in the battery when the vehicle decelerates and use it for acceleration.

도 4는 일반적인 하이브리드 자동차의 시간에 따른 속도의 변화를 나타낸다. 자동차가 출발하여 저속으로 운행하는 (1) 구간에서는 엔진을 사용하지 않고 모터만으로 자동차가 움직인다. 이후 가속하는 (2) 구간에서는 엔진과 모터를 함께 사용하고, 정속운행하는 (3) 구간에서는 엔진만으로 자동차가 움직이게 된다. 그리고 감속하는 (4) 구간에서는 엔진과 모터를 모두 사용하지 않으므로 바퀴의 회전에너지를 배터리에 저장하는 회생제동 기술을 사용하게 된다.4 shows a change in speed over time of a typical hybrid vehicle. In section (1) where the car starts and runs at low speed, the car moves only with the motor without using the engine. The engine and motor are used together in the section (2) that accelerates thereafter, and the vehicle moves only with the engine in the section (3) where it is running at constant speed. And since the engine and the motor are not used in the deceleration section (4), regenerative braking technology that stores the rotational energy of the wheel in the battery is used.

하지만 회생제동 시스템은 말 그대로 제동시에만 바퀴의 회전에너지를 저장하므로 가속을 하거나 일정한 속도로 주행하는 동안은 배터리를 충전할 수 없는 한계가 있다.However, since the regenerative braking system literally stores the rotational energy of the wheel only during braking, there is a limit in that it cannot charge the battery while accelerating or driving at a constant speed.

이런 점을 보완하기 위해 배터리 용량을 늘리고 충전기를 이용하여 배터리를 충전하는 플러그인 하이브리드 자동차(PHEV: Plug-in Hybrid Electric Vehicle)가 개발됐지만 여전히 배터리의 충전은 제동 혹은 감속시에만 이루어지므로 배터리를 충전하기엔 역부족이다.To compensate for this, a plug-in hybrid electric vehicle (PHEV) was developed to increase the battery capacity and charge the battery using a charger, but it is still difficult to charge the battery because the battery is charged only during braking or deceleration. It is not enough.

대한민국 등록실용신안 제20-0279220호의 발명은 차량의 후륜에 발전기를 장착하여 배터리를 충전하려는 시도를 하였다. 하지만 후륜에 부하가 걸리면 주행에 필요한 에너지가 더 필요하게 되므로 충전 효율이 떨어질 수 밖에 없는 문제가 있다. The invention of the Republic of Korea Utility Model No. 20-0279220 attempted to charge the battery by attaching a generator to the rear wheel of a vehicle. However, when a load is applied to the rear wheel, more energy required for driving is required, so charging efficiency is inevitably lowered.

본 발명의 발명자는 위와 같은 문제를 해결하기 위하여 연구하고 노력한 끝에 감속시 뿐 아니라 가속시와 정속주행중에도 계속 배터리를 충전할 수 있는 충전장치를 완성하기에 이르렀다. The inventor of the present invention came to complete a charging device capable of continuously charging a battery not only during deceleration, but also during acceleration and constant speed driving after researching and trying to solve the above problems.

본 발명의 목적은 전기자동차의 제동이나 감속시 뿐 아니라 주행 중에도 계속해서 충전 전력을 제공할 수 있는 전기자동차용 충전기를 제공함에 있다.An object of the present invention is to provide a charger for an electric vehicle capable of continuously providing charging power not only during braking or deceleration of the electric vehicle, but also during driving.

한편, 본 발명의 명시되지 않은 또 다른 목적들은 하기의 상세한 설명 및 그 효과로부터 용이하게 추론 할 수 있는 범위 내에서 추가적으로 고려될 것이다.On the other hand, other objects not specified of the present invention will be additionally considered within a range that can be easily inferred from the detailed description and effects thereof below.

위와 같은 과제를 달성하기 위한 본 발명에 따른 전기자동차 배터리 충전장치는, 전기자동차의 내부로 흐르는 공기의 통로에 설치되어 공기의 방향과 속도를 조절하는 한 쌍 이상의 에어플랩을 통과한 공기가 충전용 팬을 회전시키면, 상기 충전용 팬에 연결된 발전기가 구동되어 발생된 전기가 전기자동차의 배터리를 충전시키는 것을 특징으로 한다.The electric vehicle battery charging device according to the present invention for achieving the above object is for charging the air that has passed through at least one pair of air flaps that are installed in the passage of air flowing inside the electric vehicle to control the direction and speed of the air. When the fan is rotated, electricity generated by driving a generator connected to the charging fan charges the battery of the electric vehicle.

상기 한 쌍 이상의 에어플랩은 공기가 들어오는 방향보다 나가는 방향이 좁아지도록 배치될 수 있다.The at least one pair of air flaps may be arranged such that an exit direction is narrower than an air entry direction.

바람직하게는 상기 한 쌍 이상의 에어플랩은 전기자동차의 속도에 비례하여, 전기자동차의 속도가 느릴수록 공기가 나가는 방향이 좁아지고 전기자동차의 속도가 빠를수록 공기가 나가는 방향이 넓어지도록 조절되는 것이 좋다.Preferably, the one or more pairs of air flaps are adjusted in proportion to the speed of the electric vehicle, so that the slower the speed of the electric vehicle, the narrower the air exit direction, and the faster the electric vehicle speed, the wider the air exit direction. .

위와 같은 본 발명에 따르면 제동이나 감속 시 뿐 아니라 가속이나 정속주행중에도 계속해서 전기자동차의 배터리를 충전할 수 있는 효과가 있다.According to the present invention as described above, it is possible to continuously charge the battery of the electric vehicle not only during braking or deceleration, but also during acceleration or constant speed driving.

또한, 에어플랩을 이용하여 충전기에 공급되는 바람의 속도를 조절함으로써 전기자동차가 저속으로 운행할 때도 충전기의 회전속도를 충분히 유지할 수 있어 효과적으로 배터리를 충전할 수 있는 효과도 있다.In addition, by using the air flap to control the speed of the wind supplied to the charger, the rotation speed of the charger can be sufficiently maintained even when the electric vehicle is running at a low speed, thereby effectively charging the battery.

배터리를 주행 중 계속해서 충전할 수 있게 됨으로써 여름이나 겨울에 에어컨 또는 히터의 사용에 의해 전력 소모가 증가하더라도 전기자동차의 주행거리가 짧아지지 않는 장점도 얻을 수 있다.Since the battery can be continuously charged while driving, even if power consumption increases due to the use of an air conditioner or heater in summer or winter, the driving distance of an electric vehicle is not shortened.

한편, 여기에서 명시적으로 언급되지 않은 효과라 하더라도, 본 발명의 기술적 특징에 의해 기대되는 이하의 명세서에서 기재된 효과 및 그 잠정적인 효과는 본 발명의 명세서에 기재된 것과 같이 취급됨을 첨언한다.On the other hand, even if it is an effect not explicitly mentioned herein, it is added that the effect described in the following specification and its provisional effect expected by the technical features of the present invention are treated as described in the specification of the present invention.

도 1은 본 발명의 바람직한 어느 실시예에 따른 전기자동차용 배터리 충전기의 개략적인 구조도이다.
도 2는 본 발명의 바람직한 어느 실시예에 따른 에어플랩과 충전용 팬의 위치에 관한 도면이다.
도 3은 본 발명의 바람직한 다른 실시예에 따른 에어플랩과 충전용 팬의 위치에 관한 도면이다.
도 4는 종래기술에 따른 전기자동차의 회생제동 충전의 문제점을 간략히 나타낸 도면이다.
※ 첨부된 도면은 본 발명의 기술사상에 대한 이해를 위하여 참조로서 예시된 것임을 밝히며, 그것에 의해 본 발명의 권리범위가 제한되지는 아니한다.1 is a schematic structural diagram of a battery charger for an electric vehicle according to a preferred embodiment of the present invention.
2 is a view of the position of the air flap and the fan for charging according to a preferred embodiment of the present invention.
3 is a view of the position of the air flap and the charging fan according to another embodiment of the present invention.
4 is a view briefly showing the problem of regenerative braking charging of an electric vehicle according to the prior art.
※ The accompanying drawings are exemplified as reference for understanding the technical idea of the present invention, and the scope of the present invention is not limited thereto.

이하, 도면을 참조하여 본 발명의 다양한 실시예가 안내하는 본 발명의 구성과 그 구성으로부터 비롯되는 효과에 대해 살펴본다. 본 발명을 설명함에 있어서 관련된 공지기능에 대하여 이 분야의 기술자에게 자명한 사항으로서 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략한다.Hereinafter, a configuration of the present invention guided by various embodiments of the present invention and effects resulting from the configuration will be described with reference to the drawings. In describing the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters obvious to those skilled in the art with respect to known functions related to the present invention, a detailed description thereof will be omitted.

도 1은 본 발명의 바람직한 어느 실시예에 따른 전기자동차 배터리 충전 장치의 개략적인 구조를 나타낸다.1 shows a schematic structure of an electric vehicle battery charging apparatus according to a preferred embodiment of the present invention.

전기자동차(1)의 내부에는 공기의 흐름을 조절하기 위한 에어플랩(Air Flap, 110), 충전용 팬(120), 발전용 모터(130), 배터리(140) 및 제어유닛(ECU: Electric Control Unit, 150)를 포함한다.Inside the electric vehicle 1, an air flap 110 for controlling the flow of air, a charging fan 120, a power generation motor 130, a battery 140, and a control unit (ECU: Electric Control) Unit, 150).

에어플랩(110)은 충전용 팬(120)으로 전달되는 공기의 흐름을 조절한다. 구체적으로는 공기의 방향과 속도를 조절하기 위해 사용된다. The air flap 110 controls the flow of air delivered to the charging fan 120. Specifically, it is used to control the direction and speed of air.

충전을 위해 전기자동차 내부로 흐르는 공기의 흐름을 에어플랩(110)으로 한 방향으로 조절하여 충전용 팬(120)으로 전달한다. 이 때 전기자동차 내부로 흐르는 공기의 흐름은 전기자동차의 속력에 따라 달라질 수밖에 없다. 전기자동차의 속도가 느릴 때는 공기의 흐름도 느려지므로 발전을 위한 충전용 팬(120)의 회전력을 얻을 수 없다. 이를 보완하기 위해 본 발명은 베르누이의 원리를 이용한다.For charging, the flow of air flowing into the electric vehicle is controlled in one direction by the air flap 110 and transmitted to the charging fan 120. At this time, the flow of air flowing into the electric vehicle is bound to vary depending on the speed of the electric vehicle. When the speed of the electric vehicle is slow, the flow of air is slow, so it is impossible to obtain the rotational force of the charging fan 120 for power generation. To compensate for this, the present invention uses Bernoulli's principle.

베르누이의 정리에 의하면 유체의 속도는 통로가 좁을수록 빨라지게 된다. 따라서 도 1과 같이 에어플랩(110)의 형태가 공기의 입구보다 출구가 좁아지도록 조절하면 에어플랩(110)의 출구쪽에서 공기의 속도가 더 빨라진다. 공기의 흐름이 빨라지면 충전용 팬(120) 역시 충분한 회전력을 얻게 되고 발전기(130)를 통해 충분한 전력을 배터리(140)에 전달하여 충전을 진행할 수 있게 된다. According to Bernoulli's theorem, the velocity of fluid increases as the passage narrows. Therefore, as shown in FIG. 1, when the shape of the air flap 110 is adjusted so that the outlet is narrower than the inlet of the air, the speed of air at the outlet side of the air flap 110 increases. When the flow of air increases, the charging fan 120 also obtains sufficient rotational force, and sufficient power is delivered to the battery 140 through the generator 130 to allow charging to proceed.

이 때 발전기(130)로 사용되는 모터는 종래기술에서 회생제동에 사용되는 주행용 모터가 아니라 상시 발전을 위해 주행용 모터와는 별도로 추가된 모터이다. 따라서 제동이나 감속 중이 아니라도 이 발전기(130)를 이용해서 충전을 진행할 수 있는 효과가 있다. 또한 발전기(130)에서 발생한 전기는 정션박스(Junction Box)를 통해 배터리(140)에 전달되거나 에어컨/히터를 가동하는 데 사용하도록 선택될 수 있다. 발전기(130)에서 발생한 전력을 에어컨이나 히터를 구동하는 데 사용한다면 주행용 배터리의 전력을 부수적인 곳에 사용하지 않기 때문에 주행거리를 종래기술에 비해 늘릴 수 있는 효과가 있다.In this case, the motor used as the generator 130 is not a driving motor used for regenerative braking in the prior art, but a motor added separately from a driving motor for constant power generation. Therefore, there is an effect of being able to proceed with charging by using the generator 130 even if not during braking or deceleration. In addition, electricity generated from the generator 130 may be delivered to the battery 140 through a junction box or may be selected to be used to operate an air conditioner/heater. If the power generated by the generator 130 is used to drive the air conditioner or the heater, since the power of the driving battery is not used in an incidental place, the driving distance can be increased compared to the prior art.

그런데 이렇게 에어플랩(110)의 형태를 공기의 흐름이 빨라지도록 한다면 전기자동차(1)의 속도가 빠른 경우 문제가 될 수 있다. 에어플랩(110)이 공기의 흐름을 방해하는 형태가 되어 주행 효율이 떨어질 수 있기 때문이다.However, if the shape of the air flap 110 is such that the flow of air is increased, it may be a problem if the speed of the electric vehicle 1 is high. This is because the air flap 110 is in a form that interferes with the flow of air, and thus driving efficiency may decrease.

따라서 본 발명의 다른 실시예에서는 에어플랩(110)의 형태가 전기자동차(1)의 속도에 비례해서 가변되도록 하였다. 즉, 전기자동차(1)의 속도가 느릴 때는 에어플랩(110)의 출구가 좁아지도록 하고, 전기자동차(1)의 속도가 빨라질수록 에어플랩(110)의 출구가 넓어지도록 조절한다. Therefore, in another embodiment of the present invention, the shape of the air flap 110 is changed in proportion to the speed of the electric vehicle 1. In other words, when the speed of the electric vehicle 1 is slow, the outlet of the air flap 110 is narrowed, and as the speed of the electric vehicle 1 increases, the outlet of the air flap 110 is adjusted to widen.

제어유닛(150)은 하나 이상의 프로세서로 구성되어 에어플랩(110)을 조절한다. 즉, 전기자동차(1)의 속도에 비례하여 에어플랩(110)의 입구를 조절하는 것이다. 이를 위해 에어플랩(110)의 각도를 조절하기 위한 모터(미도시)를 더 포함할 수 있다.The control unit 150 is composed of one or more processors and controls the air flap 110. That is, the inlet of the air flap 110 is adjusted in proportion to the speed of the electric vehicle 1. To this end, a motor (not shown) for adjusting the angle of the air flap 110 may be further included.

전기자동차(1)의 속도에 따라 에어플랩(110)의 입구, 출구를 조절함으로써 저속에서나 고속에서 모두 충전용 팬(110)에 충분한 공기의 흐름을 제공할 수 있고, 전기자동차(1)의 속도에 상관없이 계속해서 배터리(140)의 충전이 가능한 효과를 얻을 수 있다.By adjusting the inlet and outlet of the air flap 110 according to the speed of the electric vehicle 1, it is possible to provide sufficient air flow to the charging fan 110 at both low and high speeds, and the speed of the electric vehicle 1 Regardless of whether the battery 140 can be continuously charged, it is possible to obtain an effect.

도 2는 본 발명의 바람직한 어느 실시예에 따라 충전용 팬(120, 122)이 설치되는 위치를 나타낸다.2 shows a location where the charging fans 120 and 122 are installed according to a preferred embodiment of the present invention.

전기자동차의 전면 하단 범퍼(2)에 공기의 통로가 설치되고, 공기 통로에는 에어플랩(110, 112)이 설치되어 공기의 흐름을 조절하게 된다. 에어플랩(110, 112)를 통과한 공기는 충전용 팬(120, 122)으로 전달되어 충전용 팬(120, 122)을 회전시키고, 회전에너지는 발전기에 의해 전기에너지로 변환되어 배터리에 저장되어 사용된다. 전기자동차의 양 측면에 충전용 팬(120, 122)이 설치되는 경우 충전용 팬(120, 122)는 양쪽으로 분리되어 설치될 수 있도록 그 크기가 비교적 작게 만들어진다.Air passages are installed in the front lower bumper 2 of the electric vehicle, and air flaps 110 and 112 are installed in the air passages to control the flow of air. The air that has passed through the air flaps 110 and 112 is transferred to the charging fans 120 and 122 to rotate the charging fans 120 and 122, and the rotational energy is converted into electric energy by a generator and stored in the battery. Is used. When the charging fans 120 and 122 are installed on both sides of the electric vehicle, the charging fans 120 and 122 are made relatively small in size so that they can be separated and installed on both sides.

도 3은 본 발명의 바람직한 다른 실시예에 따라 충전용 팬(124)이 설치되는 위치를 나타낸다.3 shows a location where a charging fan 124 is installed according to another preferred embodiment of the present invention.

전기자동차의 전면 하단 범퍼(3)의 중앙에 공기 통로가 설치되고, 공기 통로에 에어플랩(114)가 설치되어 공기의 흐름을 조절한다. 에어플랩(114)을 통과한 공기는 하나의 충전용 팬(124)을 회전시키고, 충전용 팬(124)은 발전기를 돌려 배터리에 전기에너지를 저장하도록 한다. 전기자동차의 중앙 부분에 충전용 팬(124)이 설치되는 경우에는 충전용 팬(124)의 크기를 좀 더 크게 하여 더 큰 회전에너지를 얻을 수 있는 장점이 있다.An air passage is installed in the center of the lower front bumper 3 of the electric vehicle, and an air flap 114 is installed in the air passage to regulate the flow of air. The air passing through the air flap 114 rotates one charging fan 124, and the charging fan 124 rotates a generator to store electric energy in the battery. When the charging fan 124 is installed in the central part of the electric vehicle, the size of the charging fan 124 may be increased to obtain greater rotational energy.

본 발명의 보호범위가 이상에서 명시적으로 설명한 실시예의 기재와 표현에 제한되는 것은 아니다. 또한, 본 발명이 속하는 기술분야에서 자명한 변경이나 치환으로 말미암아 본 발명이 보호범위가 제한될 수도 없음을 다시 한 번 첨언한다.The scope of protection of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the scope of protection of the present invention may not be limited due to obvious changes or substitutions in the technical field to which the present invention pertains.

Claims (3)

전기자동차의 내부로 흐르는 공기의 통로에 설치되어 공기의 방향과 속도를 조절하는 한 쌍 이상의 에어플랩을 통과한 공기가 충전용 팬을 회전시키면, 상기 충전용 팬에 연결된 발전기가 구동되어 발생된 전기가 전기자동차의 배터리를 충전시키는 것을 특징으로 하는, 전기자동차 배터리 충전 장치.
When the air that has passed through at least one pair of air flaps installed in the passage of the air flowing inside the electric vehicle to control the direction and speed of the air rotates the charging fan, the generator connected to the charging fan is driven to generate electricity. An electric vehicle battery charging device, characterized in that charging the battery of the electric vehicle.
 제1항에 있어서,
상기 한 쌍 이상의 에어플랩은 공기가 들어오는 방향보다 나가는 방향이 좁아지도록 배치되는 것을 특징으로 하는, 전기자동차 배터리 충전 장치.
The method of claim 1,
The at least one pair of air flaps is an electric vehicle battery charging device, characterized in that arranged such that the direction of the outgoing narrower than the direction in which the air enters.
 제1항에 있어서,
상기 한 쌍 이상의 에어플랩은 전기자동차의 속도에 비례하여, 전기자동차의 속도가 느릴수록 공기가 나가는 방향이 좁아지고 전기자동차의 속도가 빠를수록 공기가 나가는 방향이 넓어지도록 조절되는 것을 특징으로 하는, 전기자동차 배터리 충전 장치.The method of claim 1,
The one or more pairs of air flaps are adjusted to be proportional to the speed of the electric vehicle, and the air exit direction becomes narrower as the speed of the electric vehicle is slower, and the air exit direction becomes wider as the speed of the electric vehicle increases, Electric vehicle battery charging device.
KR1020190079934A 2019-07-03 2019-07-03 Apparatus for charging electric vehicle while driving KR20210004083A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113027672A (en) * 2021-05-13 2021-06-25 帅优 Horizontal coaxial wind driven generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113027672A (en) * 2021-05-13 2021-06-25 帅优 Horizontal coaxial wind driven generator

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