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KR20130073303A - Start control system of electric type agriculture vehicle using the low voltage battery - Google Patents

Start control system of electric type agriculture vehicle using the low voltage battery Download PDF

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KR20130073303A
KR20130073303A KR1020110141081A KR20110141081A KR20130073303A KR 20130073303 A KR20130073303 A KR 20130073303A KR 1020110141081 A KR1020110141081 A KR 1020110141081A KR 20110141081 A KR20110141081 A KR 20110141081A KR 20130073303 A KR20130073303 A KR 20130073303A
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low voltage
voltage battery
battery
control system
high voltage
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KR101289052B1 (en
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이동훈
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대동공업주식회사
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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
    • 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
    • B60L58/20—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 having different nominal voltages
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • 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
    • Y02T10/72—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)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템이 개시된다. 본 발명의 실시예에 따른 시동 제어 시스템 상기 주행모터의 출력을 제어하는 인버터, 전장품 구동을 위한 저전압의 전기에너지를 저장하는 저전압 배터리, 고전압 배터리 및 저전압 배터리의 전반적인 제어 및 관리를 위한 BMS(Battery Management System), 시스템의 전반적인 신호 입출력을 제어하는 통합제어기 및, 저전압 배터리와 전기적으로 연결되고 상기 메인 릴레이의 통전을 단속하는 시동 스위치와 시동 릴레이를 포함하는 구성으로 이루어진 것을 요지로 한다.Disclosed is a start control system for an electrically driven agricultural work vehicle using a low voltage battery. Startup control system according to an embodiment of the present invention, the inverter for controlling the output of the drive motor, a low voltage battery for storing low-voltage electrical energy for driving the electrical equipment, high voltage battery and BMS (Battery Management) for the overall control and management of the low voltage battery System), an integrated controller for controlling the overall signal input and output of the system, and a configuration including a start switch and a start relay electrically connected to a low voltage battery and intermittent energization of the main relay.

Description

저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템{Start control system of Electric type agriculture vehicle using the low voltage battery}Start control system of electric type agriculture vehicle using the low voltage battery

본 발명은 전기구동식 농용 작업차의 시동 제어 시스템에 관한 것으로, 상세하게는 전기에너지를 주행 동력원으로 하는 전기구동식 농용 작업차에서 별도의 저전압 배터리를 이용하여 고전압 배터리의 메인 전원의 출력을 단속할 수 있도록 한 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템에 관한 것이다.The present invention relates to a start control system for an electric driven farm work vehicle, and more particularly, to control the output of the main power source of a high voltage battery by using a separate low voltage battery in an electric driven farm work vehicle using electric energy as a driving power source. The present invention relates to a start control system for an electric powered farming work vehicle using a low voltage battery.

'트랙터(Tractor)'라 불리우는 농용 작업차는 구조적으로 일반 자동차와 비슷하지만 강력한 엔진을 장착하고 있어 견인력이 좋고 튼튼하여 경작용(耕作用)으로 주로 이용되고 있다. 경작의 용도로 활용을 위해 기체 후방으로 다양한 형태의 작업기 예를 들어, 복토 내지는 땅을 고르는 정지작업을 위한 로터리 장치를 필요에 따라 선택적으로 부착하거나 떼어낼 수 있도록 되어 있다. The agricultural work vehicle, called 'Tractor', is similar in structure to a general automobile, but has a powerful engine and is mainly used for light action due to its good traction and robustness. It is possible to selectively attach or detach various types of work machine behind the body for the purpose of cultivation, for example, a rotary device for covering a soil or a grading work.

기계식 엔진(디젤엔진)을 장착하던 종래와는 달리 최근에는, 환경친화적 기술의 구현 및 에너지 고갈 등의 문제해결을 위해, 공해물질이 전혀 발생되지 않고 소음이 극히 적은 전기에너지를 이용하는 전기구동식에 대한 연구 및 개발이 활발하게 진행되고 있다. 이러한 전기구동식은 또한, 종래 기계식 엔진방식과는 달리 복잡한 구성의 동력전달장치 등이 요구되지 않기 때문에 경량화 구현 및 기체 단순화에 유리한 장점이 있다.Unlike conventional engines equipped with mechanical engines (diesel engines), in recent years, in order to solve environmental problems and to solve problems such as energy depletion, there is no pollution and no electricity is generated. The research and development of the research is being actively conducted. The electric drive type is also advantageous in light weight implementation and gas simplification because it does not require a power transmission device of a complicated configuration, unlike the conventional mechanical engine method.

전기구동식 트랙터를 구현함에 있어 무엇보다 중요한 것은 보다 긴 주행거리 및 작업시간의 확보이다. 긴 주행거리 및 작업시간의 확보를 위해서는 보다 큰 용량의 배터리가 요구되며, 이를 위해 전기구동식 농용 작업차의 경우 일반적으로 12V의 기전력을 발생하는 단위 배터리 여러 개를 직렬로 연결하여 하나의 배터리 팩을 형성시킴으로써 대용량의 기전력이 발생하도록 구성하고 있다.In implementing an electric tractor, the most important thing is to secure longer mileage and working time. In order to secure long driving distances and working hours, a larger capacity battery is required. In the case of an electrically driven agricultural work vehicle, one battery pack is connected by connecting several unit batteries that generate 12 V electromotive force in series. It is configured to generate a large amount of electromotive force by forming a.

그러나 종래 전기구동식 트랙터의 경우, 시동 스위치가 키온(key on) 에 위치하여 통전이 허락된 상태에서나 전체적으로 전기가 흘러 트랙터를 구성하는 전장품들이 구동됨으로써, 메인 배터리에 저장된 전기에너지가 모두 소진되었거나 차량 시동이 걸려 있지 않은 상태에서는 전장품 예컨대, 혼(horn)이나 비상등과 같이 비상 상황에서 응급대처를 위한 수단이 동작하지 않는 문제가 있다.
However, in the case of a conventional electric drive tractor, the start switch is located at a key on, and the electric components of the tractor are driven when electricity is allowed to flow or as a whole, so that the electric energy stored in the main battery is exhausted or the vehicle is exhausted. In a state where the engine is not started, there is a problem in that the means for emergency response do not operate in an emergency situation, such as electric equipment, for example, a horn or an emergency lamp.

본 발명이 해결하고자 하는 기술적 과제는, 시동 스위치의 접속과 무관하게 전장품(혼(horn), 비상등, 램프 등)에는 저전압 배터리로부터 상시 전기가 제공됨에 따라, 키오프(key off) 상태에서도 전장품이 구동될 수 있도록 하는 것이다.
The technical problem to be solved by the present invention is that the electrical appliance is provided even in the key off state, as the electrical equipment (horn, emergency light, lamp, etc.) is always provided with electricity from the low-voltage battery irrespective of the connection of the start switch. It can be driven.

과제 해결 수단으로서 본 발명은, 기체 구동을 위한 고전압의 전기에너지를 저장하는 고전압 배터리; 고전압의 전기에너지 흐름을 단속하는 메인 릴레이; 고전압 배터리에서 제공된 전기에너지를 주행모터 구동에 필요한 교류로 변환시켜 상기 주행모터의 출력을 제어하는 인버터; 전장품 구동을 위한 저전압의 전기에너지를 저장하는 저전압 배터리; 고전압 배터리 및 저전압 배터리의 전반적인 제어 및 관리를 위한 BMS(Battery Management System); 시스템의 전반적인 신호 입출력을 제어하는 통합제어기; 및 저전압 배터리와 전기적으로 연결되고 상기 메인 릴레이의 통전을 단속하는 시동 스위치와 시동 릴레이;를 포함하는 구성으로 이루어져, 상기 시동 스위치를 조작하면 저전압 배터리의 저전압 전기에너지에 의해 상기 시동 릴레이가 접속되고, 시동 릴레이가 접속되면 상기 메인 릴레이가 고전압의 전기에너지 흐름을 허용하는 방향으로 통전 가능하게 접속되는 것을 특징으로 하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템을 제공한다.The present invention as a means for solving the problem, high voltage battery for storing high-voltage electrical energy for gas drive; A main relay for regulating high-voltage electrical energy flow; An inverter that converts electrical energy provided from a high voltage battery into alternating current required to drive the driving motor and controls the output of the driving motor; A low voltage battery for storing electric energy of low voltage for driving electric appliances; Battery Management System (BMS) for overall control and management of high and low voltage batteries; An integrated controller for controlling the overall signal input and output of the system; And a start switch and a start relay electrically connected to a low voltage battery and intermittent to energize the main relay. When the start switch is operated, the start relay is connected by a low voltage electric energy of a low voltage battery. When the start relay is connected, the main relay provides a start control system for an electric powered farm work vehicle using a low voltage battery, wherein the main relay is electrically connected in a direction to allow a high voltage electric energy flow.

본 실시예에서 상기 저전압 배터리는 상기 BMS 제어를 통해 고전압 배터리로부터 전기에너지를 제공받아 충전될 수 있다.In the present embodiment, the low voltage battery may be charged by receiving electrical energy from the high voltage battery through the BMS control.

그리고 상기 BMS와 저전압 배터리를 전기적으로 잇는 충전 경로에는 저전압 측에서 고전압 측으로 전류가 흐르는 것을 방지하는 다이오드가 마련될 수 있다.In addition, a diode may be provided in the charging path that electrically connects the BMS and the low voltage battery to prevent current from flowing from the low voltage side to the high voltage side.

또한, 상기 저전압 배터리는 전장품에 그 저장된 저전압 전기에너지를 시동 스위치의 접속과 무관하게 상시 제공할 수 있도록 전기적으로 연결될 수 있다.
In addition, the low voltage battery may be electrically connected to the electronic device to provide the stored low voltage electric energy at all times regardless of the connection of the start switch.

본 발명의 실시예에 따른 전기구동식 농용 작업차의 시동 제어 시스템에 의하면, 저전압 측 시동 릴레이를 통해 차량 구동과 직결된 고전압 측 메인 릴레이의 접속을 단속할 수 있도록 구성됨으로써, 안전시동이 구현될 수 있으며, 시동 스위치의 접속과 무관하게 전장품(혼(horn), 비상등, 램프 등)에는 저전압 배터리로부터 상시 전기가 제공됨에 따라, 키오프(key off) 상태에서도 전장품이 구동될 수 있는 전기구동식 농용 작업차를 구현할 수 있다.
According to the start control system of an electric drive-type agricultural work vehicle according to an embodiment of the present invention, the safety start is implemented by intermittently connecting the high voltage side main relay directly connected to the vehicle driving through the low voltage side start relay. The electric drive can be driven even in the key-off state, as the electric equipment (horn, emergency light, lamp, etc.) is always supplied with electricity from the low voltage battery regardless of the connection of the start switch. Implement agricultural work vehicles.

도 1은 본 발명의 실시예에 따른 저전압 배터리를 이용한 시동 제어 시스템의 회로 구성도.
도 2는 본 발명의 실시예에 따른 시동 제어 시스템을 탑재한 전기구동식 농용 작업차를 나타내는 도면. 1 is a circuit diagram of a start control system using a low voltage battery according to an embodiment of the present invention.
2 is a view showing an electrically driven agricultural work vehicle equipped with a start control system according to an embodiment of the present invention.

이하, 첨부도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다. 본 발명을 설명함에 있어 공지된 구성에 대해서는 그 상세한 설명은 생략하며, 또한 발명의 요지를 불필요하게 흐릴 소지가 있는 구성에 대해서도 그 상세한 설명은 생략하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, a detailed description of known configurations will be omitted, and a detailed description of configurations that may unnecessarily obscure the gist of the present invention will be omitted.

도 1은 본 발명의 실시예에 따른 저전압 배터리를 이용한 시동 제어 시스템의 회로 구성도이며, 도 2는 본 발명의 실시예에 따른 시동 제어 시스템을 탑재한 전기구동식 농용 작업차를 나타내는 도면이다.1 is a circuit diagram of a start control system using a low voltage battery according to an embodiment of the present invention, Figure 2 is a view showing an electric drive-type agricultural work vehicle equipped with a start control system according to an embodiment of the present invention.

도 1 내지 도 2를 참조하면, 본 발명의 실시예에 따른 전기구동식 농용 작업차의 시동 제어 시스템은, 기체 구동을 위한 고전압의 전기에너지를 저장하는 고전압 배터리(1)를 포함한다. 상기 고전압 배터리(1)는 직렬 연결되는 다수의 배터리 셀들에 의해 구성되며 보닛에 의해 보호되는 전륜 측 보닛공간에 용이한 교체 구현될 수 있는 형태로 탑재될 수 있다.1 to 2, the start control system of the electric drive-type agricultural work vehicle according to the embodiment of the present invention includes a high voltage battery (1) for storing high voltage electrical energy for gas driving. The high voltage battery 1 is configured by a plurality of battery cells connected in series and may be mounted in a form that can be easily replaced in the front wheel side bonnet space protected by the bonnet.

고전압 배터리(1)에 저장된 고전압의 전기에너지는 메인 릴레이(2)를 통해 그 흐름이 단속되며, 메인 릴레이(2) 접속에 따른 통전으로 흐름이 허용된 고전압의 전기에너지는 인버터(3)(inverter)를 거쳐 주행동력을 출력하는 주행모터(4)로 제공된다. The high voltage electric energy stored in the high voltage battery 1 is interrupted by the flow through the main relay 2, and the high voltage electric energy allowed to flow by energization according to the connection of the main relay 2 is connected to the inverter 3 (inverter). It is provided to the traveling motor (4) for outputting the driving power via.

인버터(3)에서는 고전압 배터리(1)에서 제공되는 직류전원을 상기 주행모터(4) 구동에 필요한 교류전원으로 변환시키며, 인버터(3)를 거쳐 변환 출력된 교류전원으로서 주행모터(4)의 출력이 제어된다.The inverter 3 converts the DC power provided from the high voltage battery 1 into AC power required to drive the traveling motor 4, and outputs the traveling motor 4 as an AC power converted and output through the inverter 3. This is controlled.

고전압의 전기에너지를 통전시키는 메인 릴레이(2)는 시동 스위치(5) 및 이에 연동된 시동 릴레이(6)로서 그 구동이 제어된다. 그리고 시동 스위치(5)는 저전압의 전기에너지를 저장하는 저전압 배터리(7)와 전기적으로 연결된다. The main relay 2 which energizes high-voltage electric energy is a start switch 5 and a start relay 6 interlocked therewith and its driving is controlled. In addition, the start switch 5 is electrically connected to a low voltage battery 7 that stores low-voltage electrical energy.

따라서 시동 스위치(5)를 접속시키는 조작이 행해지면, 저전압 배터리(7)로부터 제공되는 저전압의 전기에너지에 의해 상기 시동 릴레이(6)가 먼저 접속되고, 이후 메인 릴레이(2)가 접속되어 고전압의 전기에너지가 흐르게 된다.Therefore, when an operation for connecting the start switch 5 is performed, the start relay 6 is first connected by the low voltage electric energy provided from the low voltage battery 7, and then the main relay 2 is connected to the high voltage. Electric energy flows.

저전압의 전기에너지를 저장하는 저전압 배터리(7)와 고전압의 전기에너지를 저장하는 고전압 배터리(1)는 BMS(Battery Management System, 8)에 의해 전반적으로 관리 및 제어된다. The low voltage battery 7 storing low voltage electric energy and the high voltage battery 1 storing high voltage electric energy are generally managed and controlled by a battery management system 8 (BMS).

BMS(8)에 의한 제어를 통해 저전압 배터리(7)는 상기 고전압 배터리(1)로부터 전기에너지를 제공받아 부족한 전기에너지를 충전하며, 저전압 배터리(7)에 충전된 저전압 전기에너지는 상기 시동 스위치(5)뿐만 아니라 전장품(9) 구동을 위한 에너지로서 활용된다.The low voltage battery 7 receives electric energy from the high voltage battery 1 to charge insufficient electric energy through control by the BMS 8, and the low voltage electric energy charged in the low voltage battery 7 is stored in the start switch ( 5) as well as the energy for driving the electronics (9).

저전압 배터리(7)에 저장된 저전압 전기에너지는 상기 시동 스위치(5)의 접속과 무관하게 전장품(9)에 상시 제공될 수 있도록, 상기 저전압 배터리(7)와 전장품(9)은 상시 통전 가능한 전기적 연결을 이루고 있다. The low voltage battery 7 and the electrical appliance 9 are always electrically energized so that the low voltage electrical energy stored in the low voltage battery 7 can be always provided to the electrical equipment 9 regardless of the connection of the start switch 5. Is fulfilling.

따라서 상기 시동 스위치(5)의 접속과는 무관하게 전장품(9) 예컨대, 혼(horn), 비상등, 램프 등은 키오프(key off) 상태에서도 저전압 배터리(7)로부터의 전기에너지에 의해 동작될 수 있다.Thus, regardless of the connection of the start switch 5, the electrical components 9, for example, horns, emergency lights, lamps, etc., can be operated by the electric energy from the low voltage battery 7 even in the key off state. Can be.

한편, 고전압 배터리(1) 측에서 제공되는 전기에너지에 의해 저전압 배터리(7)의 충전이 완료되었거나 고전압 배터리(1)가 모두 소진된 경우에는 거꾸로, 저전압 배터리(7) 측에서 고전압 배터리(1) 측으로 전류가 역으로 흐를 수 있다. On the other hand, when charging of the low voltage battery 7 is completed or the high voltage battery 1 is exhausted by the electric energy provided from the high voltage battery 1 side, the high voltage battery 1 on the low voltage battery 7 side upside down. Current can flow in reverse direction.

따라서 상기 BMS(8)와 저전압 배터리(7)를 전기적으로 잇는 충전 경로에는, 도면을 통해 구체적으로 도시하지는 않았으나 다이오드와 같이 전류가 역으로 흐르는 것을 방지하는 수단이 장착될 수 있다.Accordingly, a charging path connecting the BMS 8 and the low voltage battery 7 may be equipped with means for preventing the current from flowing backward, such as a diode, although not specifically illustrated in the drawings.

도면에서 미설명 부호 10은 본 발명에 따른 시동 제어 시스템을 이루는 상기한 구성요소들의 전반적인 신호 입출력을 제어하는 통합제어기이며, 12는 고전압 배터리(1)에서 제공되는 고전압의 직류전압을 외부기기 구동에 적합한 직류전압으로 승압시키거나 감압시키기 위한 DC/DC 컨버터를 나타낸다.In the drawing, reference numeral 10 denotes an integrated controller for controlling the overall signal input and output of the above-mentioned components of the start control system according to the present invention, and 12 denotes a high voltage DC voltage provided from the high voltage battery 1 for driving an external device. Represents a DC / DC converter for boosting or depressurizing to a suitable DC voltage.

상기와 같이 구성된 본 발명에 따른 시동 제어 시스템에 의해 행해지는 전기구동식 농용 작업차 시동 제어에 대해 간단히 살펴보기로 한다.The electric drive-type agricultural work vehicle start control performed by the start control system according to the present invention configured as described above will be briefly described.

도 1을 다시 참조하면, 시동을 걸기 위해 운전자가 키를 돌리거나 버튼형인 스위치를 눌러 시동 스위치(5)를 온(ON) 조작하면, 저전압 배터리(7)에서 제공되는 저전압 전기에너지에 의해 상기 시동 스위치(5)와 전기적으로 연결된 시동 릴레이(6)가 메인 릴레이(2) 통전과 관련한 회로에 전기를 도통시키도록 구동된다. Referring back to FIG. 1, when the driver turns on the start switch 5 by turning a key or pressing a button-type switch to start the start, the start is performed by the low voltage electric energy provided by the low voltage battery 7. A start relay 6 electrically connected to the switch 5 is driven to conduct electricity to the circuit associated with energizing the main relay 2.

시동 릴레이(6) 구동으로 메인 릴레이(2) 통전과 관련한 회로에 전기가 흐르면, 상기 메인 릴레이(2)가 고전압의 전기에너지 흐름을 허용하는 방향으로 구동하여 해당 스위치가 접속됨으로써 시동이 걸리게 되고, 따라서 고전압 배터리(1)에 저장된 고전압의 전기에너지는 인버터(3) 측으로 흐를 수 있게 된다.When electricity flows in the circuit related to the energization of the main relay 2 by driving the start relay 6, the main relay 2 is driven in a direction to allow the flow of electric energy at a high voltage, and the corresponding switch is connected to start the engine. Therefore, the high voltage electric energy stored in the high voltage battery 1 can flow to the inverter 3 side.

위와 같은 시동 온(ON) 상태에서 고전압 배터리(1)에서 출력되는 전기에너지는 BMS(8)를 통해 제어 및 관리되며, BMS(8)는 배터리 관리 및 제어 과정에서 획득된 배터리와 관련한 정보(전압, 전류, 잔량, 주행 가능거리, 충전시기 등)를 통합제어기에 전달한다. 그리고 통합제어기는 해당 정보가 계기판을 통해 외부로 출력될 수 있도록 제어한다. In the above ON state, the electrical energy output from the high voltage battery 1 is controlled and managed through the BMS 8, and the BMS 8 stores information related to the battery (voltage) obtained in the battery management and control process. , Current, remaining amount, driving distance, charging time, etc.) to the integrated controller. And the integrated controller controls the information to be output to the outside through the instrument cluster.

한편, 전장품(9)은 저전압 배터리(7)와 상시 통전 가능한 전기적 연결을 이루고 있다. 따라서 상기한 시동 스위치(5)의 접속과는 상관 없이 즉, 시동이 걸려 있거나 그렇지 않은 상태이건 관계 없이 운전자의 해당 스위치 또는 레버 조작을 통해 언제든 동작될 수 있다.On the other hand, the electrical appliance 9 is an electrical connection capable of always energizing the low voltage battery (7). Therefore, regardless of the connection of the start switch 5 described above, i.e., whether or not the engine is started or not, it can be operated at any time through the operation of the corresponding switch or lever of the driver.

상기와 같은 본 발명의 실시예에 따른 전기구동식 농용 작업차의 시동 제어 시스템에 의하면, 저전압 측 시동 릴레이를 통해 차량 구동과 직결된 고전압 측 메인 릴레이의 접속이 단속됨으로써, 안전시동이 구현될 수 있고, 시동이 걸려 있지 않은 경우라도 전장품 구동이 구현될 수 있어, 키오프 상태에서 비상상황이 발생한 경우라도 비상등과 같은 알림 수단을 동작시켜 이에 대처할 수 있다.According to the start control system of the electric drive-type agricultural work vehicle according to the embodiment of the present invention as described above, the safety start can be realized by the connection of the high voltage side main relay directly connected to the vehicle driving through the low voltage side start relay. In addition, even when the start is not applied, the electric appliance driving can be implemented, and even when an emergency situation occurs in the key-off state, it is possible to cope with this by operating a notification means such as an emergency light.

이상의 본 발명의 상세한 설명에서는 그에 따른 특별한 실시 예에 대해서만 기술하였다. 하지만 본 발명은 상세한 설명에서 언급되는 특별한 형태로 한정되는 것이 아닌 것으로 이해되어야 하며, 오히려 첨부된 청구범위에 의해 정의되는 본 발명의 정신과 범위 내에 있는 모든 변형물과 균등물 및 대체물을 포함하는 것으로 이해되어야 한다.In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

1 : 고전압 배터리
2 : 메인 릴레이
3 : 인버터
4 : 주행모터
5 : 시동 스위치
6 : 시동 릴레이
7 : 저전압 배터리
8 : BMS(배터리 제어 시스템)
9 : 전장품
10 : 통합제어기
12 : DC/DC 컨버터1: High voltage battery
2: main relay
3: inverter
4: driving motor
5: start switch
6: start relay
7: low voltage battery
8: BMS (Battery Control System)
9: electric equipment
10: integrated controller
12: DC / DC converter

Claims (4)

기체 구동을 위한 고전압의 전기에너지를 저장하는 고전압 배터리;
고전압의 전기에너지 흐름을 단속하는 메인 릴레이;
고전압 배터리에서 제공된 전기에너지를 주행모터 구동에 필요한 교류로 변환시켜 상기 주행모터의 출력을 제어하는 인버터;
전장품 구동을 위한 저전압의 전기에너지를 저장하는 저전압 배터리;
고전압 배터리 및 저전압 배터리의 전반적인 제어 및 관리를 위한 BMS(Battery Management System);
시스템의 전반적인 신호 입출력을 제어하는 통합제어기; 및
저전압 배터리와 전기적으로 연결되고 상기 메인 릴레이의 통전을 단속하는 시동 스위치와 시동 릴레이;를 포함하는 구성으로 이루어져,
상기 시동 스위치를 조작하면 저전압 배터리의 저전압 전기에너지에 의해 상기 시동 릴레이가 접속되고, 시동 릴레이가 접속되면 상기 메인 릴레이가 고전압의 전기에너지 흐름을 허용하는 방향으로 통전 가능하게 접속되는 것을 특징으로 하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템.A high voltage battery storing high voltage electrical energy for gas driving;
A main relay for regulating high-voltage electrical energy flow;
An inverter that converts electrical energy provided from a high voltage battery into alternating current required to drive the driving motor and controls the output of the driving motor;
A low voltage battery for storing electric energy of low voltage for driving electric appliances;
Battery Management System (BMS) for overall control and management of high and low voltage batteries;
An integrated controller for controlling the overall signal input and output of the system; And
A start switch and a start relay electrically connected to a low voltage battery and intermittently energizing the main relay;
When the start switch is operated, the start relay is connected by low voltage electric energy of a low voltage battery, and when the start relay is connected, the main relay is electrically connected in a direction to allow high voltage electric energy flow. Start-up control system for electric powered agricultural work vehicle using battery. 제 1 항에 있어서,
상기 저전압 배터리는 상기 BMS 제어를 통해 고전압 배터리로부터 전기에너지를 제공받아 충전되는 것을 특징으로 하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템.
The method of claim 1,
The low voltage battery is controlled by receiving electric energy from a high voltage battery through the BMS control, starting control system for an electric drive-type agricultural work vehicle using a low voltage battery.
제 2 항에 있어서,
상기 BMS와 저전압 배터리를 전기적으로 잇는 충전 경로에는 저전압 측에서 고전압 측으로 전류가 흐르는 것을 방지하기 위해 다이오드가 마련되는 것을 특징으로 하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템.
3. The method of claim 2,
Start-up control system of the electric drive-type agricultural work vehicle using a low voltage battery, characterized in that a diode is provided in the charging path that electrically connects the BMS and the low voltage battery to prevent current from flowing from the low voltage side to the high voltage side.
제 1 항 내지 제 3 항 중 어느 하나의 항에 있어서,
상기 저전압 배터리는 전장품에 그 저장된 저전압 전기에너지를 시동 스위치의 접속과 무관하게 상시 제공하는 것을 특징으로 하는 저전압 배터리를 이용한 전기구동식 농용 작업차의 시동 제어 시스템.4. The method according to any one of claims 1 to 3,
The low voltage battery is a start-up control system for an electric drive-type agricultural work vehicle using a low voltage battery, characterized in that to provide the low-voltage electric energy stored in the electrical equipment at all times irrespective of the connection of the start switch.
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KR20190042381A (en) * 2017-10-16 2019-04-24 현대자동차주식회사 Controlling method and system for starting of eco-friendly car
CN118478690A (en) * 2024-06-03 2024-08-13 青岛蚂蚁机器人有限责任公司 Heavy-load AGV starting circuit and method
CN118478690B (en) * 2024-06-03 2024-11-26 青岛蚂蚁机器人有限责任公司 Heavy-load AGV starting circuit and method

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