KR20140110170A - Electric safety system for fuel cell vehicle - Google Patents

Electric safety system for fuel cell vehicle Download PDF

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KR20140110170A
KR20140110170A KR1020130023114A KR20130023114A KR20140110170A KR 20140110170 A KR20140110170 A KR 20140110170A KR 1020130023114 A KR1020130023114 A KR 1020130023114A KR 20130023114 A KR20130023114 A KR 20130023114A KR 20140110170 A KR20140110170 A KR 20140110170A
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South Korea
Prior art keywords
relay
fuel cell
cell stack
vehicle
hydrogen
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KR1020130023114A
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Korean (ko)
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정귀성
김주한
한수동
최서호
김세훈
금영범
박용선
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020130023114A priority Critical patent/KR20140110170A/en
Publication of KR20140110170A publication Critical patent/KR20140110170A/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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Fuel Cell (AREA)

Abstract

The present invention introduces an electric safety system for a fuel cell vehicle, which includes a hydrogen valve arranged on a hydrogen supplying line of a fuel cell stack; a driving motor part which is connected to the fuel cell stack by a first relay and receives electric power to drive the vehicle; a resistance part which is connected to the fuel cell stack by a second relay and lowers residual voltages of the fuel cell stack; and a controlling part. The controlling part closes the first relay and opens the second relay while the vehicle runs. When crash signals of the vehicle are received, the controlling part closes the hydrogen valve, opens the first relay, and closes the second relay.

Description

연료전지차량의 전기안전시스템 {ELECTRIC SAFETY SYSTEM FOR FUEL CELL VEHICLE}ELECTRIC SAFETY SYSTEM FOR FUEL CELL VEHICLE [0002]

본 발명은 연료전지 차량의 충돌 후 스택의 잔류 고전압을 제거하여 고전압에 의한 감전 및 화재 발생 가능성을 사전에 차단하기 위한 연료전지차량의 전기안전시스템에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an electric safety system of a fuel cell vehicle for eliminating a residual high voltage of a stack after a collision of a fuel cell vehicle to prevent electric shock and fire occurrence due to high voltage in advance.

그러나, 연료전지를 자동차의 동력원으로 적용하는 경우 스택에서 전력을 생산하며, 스택에서 생산된 전력으로 모터에 의해 차량이 구동하게 된다. 이에 따라 스택으로부터 고전압이 생성되고, 수소를 저장하는 탱크가 자동차에 장착되어지기 때문에 다양한 안전장치가 필수적으로 구비되어진다.However, when the fuel cell is applied as a power source of a vehicle, the power is produced in the stack, and the motor is driven by the electric power produced in the stack. As a result, a high voltage is generated from the stack, and a tank for storing hydrogen is installed in the vehicle, so that various safety devices are essentially provided.

종래의 KR10-0534768 B "연료전지 자동차의 안전 시스템"은 "전기 에너지의 생성을 위한 화학 반응에서 매질로 사용되는 수소를 저장하는 수소탱크, 상기 수소탱크에서 수소의 공급을 조정하는 밸브, 상기 공급되는 수소와의 화학반응 통해 전기 에너지를 생성하는 연료전지 스택, 수소의 공급을 제어하고 수소 공급 차단을 요구하는 안전신호가 검출되면 수소의 공급을 차단 제어하는 수소 시스템 제어기, 연료 전지 시스템 구동에 대한 전반적인 동작을 제어하며, 안전 신호가 검출되면 연료전지시스템 구동을 차단 제어하는 연료전지 제어기, 모터의 구동을 제어하는 모터 제어기, 충돌이나 추돌에 의한 에어백 전개제어가 수행되면, 그에 따른 충돌 안전신호를 출력하는 에어백 모듈과, 에어백 모듈에서 출력되는 충돌 안전신호에 의해 스위칭 되어 상기 수소 시스템 제어기 및 모터 제어기에 긴급 차단신호를 드라이브하는 드라이버를 포함한다."를 제시한다.Conventional KR10-0534768 B "Safety System for Fuel Cell Vehicle" refers to "a hydrogen tank for storing hydrogen used as a medium in a chemical reaction for generation of electric energy, a valve for regulating the supply of hydrogen in the hydrogen tank, A fuel cell stack for generating electrical energy through a chemical reaction with hydrogen, a hydrogen system controller for controlling the supply of hydrogen and for shutting off the supply of hydrogen when a safety signal is required to interrupt the supply of hydrogen, A fuel cell controller for controlling the overall operation and shutting off the fuel cell system drive when a safety signal is detected, a motor controller for controlling the driving of the motor, and an airbag deployment control for collision or collision, An airbag module for outputting the airbag module, and a collision safety signal output from the airbag module, And a predetermined system controller and driver to drive the emergency shut-off signal to the motor controller. "Presents.

그러나 이러한 종래의 기술에 의하더라도 충돌후 수소 공급의 차단 및 전기동력 부품과의 고전원을 단절하더라도 스택 내부의 잔류 수소 / 공기로 인해 스택의 고전압이 유지되는 문제가 있었다.However, even with this conventional technique, there is a problem that the high voltage of the stack is maintained due to the hydrogen / air remaining in the stack even when the hydrogen supply is interrupted after the collision and the high power source is disconnected from the electric power component.

따라서, 충돌후 절연저항의 하락 및 절연이 파괴되는 경우 고전압에 의한 감전 발생이 가능한 문제가 있었던 것이다.
Accordingly, there has been a problem in that, when the insulation resistance is lowered after the collision and the insulation is broken, an electric shock can be generated due to a high voltage.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.
It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KRKR 10-053476810-0534768 BB

본 발명은 이러한 문제점을 해결하기 위하여 제안된 것으로, 충돌후 스택의 잔류 고전압을 제거하여 고전압에 의한 감전 발생 가능성을 차단할 수 있는 연료전지차량의 전기안전시스템을 제공하는데 그 목적이 있다.
It is an object of the present invention to provide an electric safety system of a fuel cell vehicle that can eliminate the possibility of electric shock due to high voltage by eliminating a residual high voltage of a stack after a collision.

상기의 목적을 달성하기 위한 본 발명에 따른 연료전지차량의 전기안전시스템은, 연료전지스택의 수소공급라인에 마련된 수소밸브; 연료전지스택으로부터 제1릴레이를 통해 연결되어 전기를 공급받아 차량을 구동하는 구동모터부; 연료전지스택으로부터 제2릴레이를 통해 연결되어 연료전지스택의 잔류 전압을 하락시키는 저항부; 및 주행시 제1릴레이를 클로즈하고 제2릴레이를 오픈하며, 차량의 충돌신호 수신시에는 수소밸브를 잠그고 제1릴레이를 오픈하며 제2릴레이를 클로즈시키는 제어부;를 포함한다.According to an aspect of the present invention, there is provided an electrical safety system for a fuel cell vehicle, including: a hydrogen valve provided in a hydrogen supply line of a fuel cell stack; A drive motor connected to the fuel cell stack through a first relay to supply electricity to drive the vehicle; A resistance portion connected from the fuel cell stack through the second relay to lower the residual voltage of the fuel cell stack; And a control unit for closing the first relay and opening the second relay at the time of traveling, and closing the hydrogen valve at the time of receiving the collision signal of the vehicle, opening the first relay and closing the second relay.

상기 제1릴레이는 노멀오픈타입이며 주행시 클로징되어 구동모터부에 전기를 공급할 수 있다.The first relay is a normally open type and can be closed during driving to supply electricity to the drive motor unit.

상기 제2릴레이는 노멀클로즈타입이며 주행시 오픈되어 연료전지스택의 전력을 소모하지 않을 수 있다.The second relay is a normally closed type, and may be opened at the time of traveling to consume power of the fuel cell stack.

상기 제1릴레이의 후단에는 고전압부품이 연결되어 구동모터부와 함께 연료전지스택으로부터 전기를 공급받을 수 있다.A high voltage component is connected to the rear end of the first relay to receive electricity from the fuel cell stack together with the driving motor unit.

상기 연료전지스택과 차체 사이의 절연을 체크하는 절연고장검출부;를 더 포함하고, 상기 제어부는 절연고장신호 수신시 수소밸브를 잠그고 제1릴레이를 오픈하며 제2릴레이를 클로즈시킬 수 있다.
And an insulation failure detecting unit for checking the insulation between the fuel cell stack and the vehicle body. The control unit may close the hydrogen relay, open the first relay, and close the second relay when the insulation fault signal is received.

상술한 바와 같은 구조로 이루어진 연료전지차량의 전기안전시스템에 따르면, 충돌후 스택의 잔류 고전압을 제거하여 고전압에 의한 감전 발생 가능성을 차단할 수 있다.According to the electrical safety system of the fuel cell vehicle having the above-described structure, the residual high voltage of the stack after collision can be removed to prevent the possibility of electric shock due to the high voltage.

또한, 릴레이를 노멀클로즈와 노멀오픈타입을 혼용함으로써 차량의 충돌이 아닌 고장에도 대비할 수 있게 된다.
In addition, by using the normally close and normal open type relays, it is possible to prepare for failures other than vehicle collisions.

도 1은 본 발명의 일 실시예에 따른 연료전지차량의 전기안전시스템의 구성도.
도 2는 도 1에 도시된 연료전지차량의 전기안전시스템에 따른 효과를 나타낸 그래프.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of an electric safety system of a fuel cell vehicle according to an embodiment of the present invention; FIG.
FIG. 2 is a graph showing the effect of the electrical safety system of the fuel cell vehicle shown in FIG. 1;

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예에 따른 연료전지차량의 전기안전시스템에 대하여 살펴본다.Hereinafter, an electrical safety system of a fuel cell vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 연료전지차량의 전기안전시스템의 구성도이고, 도 2는 도 1에 도시된 연료전지차량의 전기안전시스템에 따른 효과를 나타낸 그래프이다.FIG. 1 is a configuration diagram of an electric safety system of a fuel cell vehicle according to an embodiment of the present invention, and FIG. 2 is a graph illustrating an effect of the electric safety system of the fuel cell vehicle shown in FIG.

본 발명의 연료전지차량의 전기안전시스템은, 연료전지스택(100)의 수소공급라인에 마련된 수소밸브(220); 연료전지스택(100)으로부터 제1릴레이(360)를 통해 연결되어 전기를 공급받아 차량을 구동하는 구동모터부(300); 연료전지스택(100)으로부터 제2릴레이(520)를 통해 연결되어 연료전지스택(100)의 잔류 전압을 하락시키는 저항부(500); 및 주행시 제1릴레이(360)를 클로즈하고 제2릴레이(520)를 오픈하며, 차량의 충돌신호 수신시에는 수소밸브(220)를 잠그고 제1릴레이(360)를 오픈하며 제2릴레이(520)를 클로즈시키는 제어부(600);를 포함한다.An electric safety system of a fuel cell vehicle of the present invention includes: a hydrogen valve (220) provided in a hydrogen supply line of a fuel cell stack (100); A driving motor unit 300 connected to the fuel cell stack 100 through the first relay 360 to receive electricity to drive the vehicle; A resistor part 500 connected from the fuel cell stack 100 through the second relay 520 to lower the residual voltage of the fuel cell stack 100; The first relay 360 is closed and the second relay 520 is opened and the hydrogen valve 220 is closed and the first relay 360 is opened and the second relay 520 is opened when the collision signal of the vehicle is received. And a control unit 600 for closing the display unit.

즉, 본 발명의 연료전지차량의 전기안전시스템의 제어부(600)는 기본적으로는 연료전지의 구동을 제어하는 기능을 수행하며, 수소밸브(220)와 모터제어기(320)를 제어한다.That is, the control unit 600 of the electric safety system of the fuel cell vehicle of the present invention basically controls the operation of the fuel cell, and controls the hydrogen valve 220 and the motor controller 320.

그리고 차량이 충돌시에는 수소공급을 차단하고 연료전지의 잔여 전압을 소모하도록 제어함으로써 안전을 기하는 것이다.In the event of a vehicle collision, the hydrogen supply is cut off and the residual voltage of the fuel cell is consumed to control the safety.

본 발명의 연료전지차량의 전기안전시스템에 따르면, 수소탱크(200)의 수소는 수소밸브(220)를 거쳐 연료전지스택(100)으로 공급된다.According to the electric safety system of the fuel cell vehicle of the present invention, the hydrogen of the hydrogen tank 200 is supplied to the fuel cell stack 100 via the hydrogen valve 220.

그리고 연료전지스택(100)에서 생성된 전기는 제1릴레이(360)를 통하여 구동모터부(300)와 고전압부품(400)으로 공급된다. 구동모터부(300)는 모터제어기(320)와 구동모터(340)로 구성되며, 모터제어기(320)는 고전압 직류전압을 교류로 정류하여 모터에 제공함으로써 차량이 구동되도록 한다.The electricity generated in the fuel cell stack 100 is supplied to the drive motor unit 300 and the high-voltage component 400 through the first relay 360. The drive motor unit 300 includes a motor controller 320 and a drive motor 340. The motor controller 320 rectifies the high voltage DC voltage to AC and supplies the rectified AC voltage to the motor to drive the vehicle.

한편, 연료전지제어기에는 충돌감지신호가 접수되는데, 차량의 충돌센서(10)로부터 충돌신호 수신시에는 수소밸브(220)를 잠가 수소가 연료전지스택(100)으로 차단되도록 함으로서 안전하게 수소를 봉인한다.When a collision signal is received from the collision sensor 10 of the vehicle, the hydrogen valve 220 is shut off and the hydrogen is sealed by the fuel cell stack 100 to securely seal the hydrogen .

그리고 제1릴레이(360)를 오픈하여 구동모터부(300)와 고전압부품(400)으로의 전류를 차단하여 안전상태로 유도한다. 또한, 제2릴레이(520)를 클로즈시킴으로써 연료전지스택(100) 내부의 수소와 공기를 소모시킴으로써 연료전지스택(100) 내부에서 고전압이 상당시간 유지되던 문제를 해소할 수 있게 된 것이다.
Then, the first relay 360 is opened to cut off the current to the drive motor unit 300 and the high-voltage part 400 to induce a safety state. In addition, by closing the second relay 520, hydrogen and air in the fuel cell stack 100 are consumed, thereby solving the problem that the high voltage is maintained for a considerable time in the fuel cell stack 100 for a long time.

구체적으로, 저항부(500)는 연료전지스택(100)으로부터 제2릴레이(520)를 통해 연결되어 연료전지스택(100)의 잔류 전압을 하락시키도록 한다.Specifically, the resistor unit 500 is connected from the fuel cell stack 100 via the second relay 520 to lower the residual voltage of the fuel cell stack 100. [

이를 위해 제1릴레이(360)는 노멀오픈타입이며 주행시 클로징되어 구동모터부(300)에 전기를 공급하도록 하고, 제2릴레이(520)는 노멀클로즈타입이며 주행시 오픈되어 연료전지스택(100)의 잔류 전력 소모를 방지하도록 한다.The first relay 360 is a normally open type and is closed during driving to supply electricity to the driving motor unit 300. The second relay 520 is a normally closed type, Thereby preventing residual power consumption.

즉, 제1릴레이(360)는 평상시 오픈타입으로서 평상시에는 구동모터부(300)에 전기를 공급하지 않도록 한다. 그리고 주행시에는 필요에 따라 제1릴레이(360)를 작동시켜 구동모터부(300)에 전기를 인가하도록 하는 것이다.That is, the first relay 360 is normally open type, and normally does not supply electricity to the drive motor unit 300. In addition, at the time of traveling, the first relay 360 is actuated to apply electricity to the driving motor unit 300 as needed.

한편, 제2릴레이(520)는 평상시 클로즈타입으로써 평상시에는 연료전지스택(100)의 잔류 전압을 저항부(500)에서 소모하도록 함으로써 연료전지스택(100)의 내구성을 보장하도록 한다. Meanwhile, the second relay 520 is normally closed type so that the residual voltage of the fuel cell stack 100 is consumed in the resistance portion 500 at normal times, thereby assuring the durability of the fuel cell stack 100.

이러한 구성은 차량의 제어부(600) 고장시 혹은 통신라인의 고장시 연료전지스택(100) 내부의 고전압을 빠르게 하강시킴으로써 절연계통의 파손에도 확실히 대응할 수 있는 구성에 해당한다.
Such a configuration corresponds to a structure capable of reliably coping with breakage of the insulated system by rapidly lowering the high voltage inside the fuel cell stack 100 when the control unit 600 of the vehicle fails or when the communication line fails.

한편, 상기 제1릴레이(360)의 후단에는 고전압부품(400)이 연결되어 구동모터부(300)와 함께 연료전지스택(100)으로부터 전기를 공급받도록 할 수 있다.A high voltage component 400 is connected to a rear end of the first relay 360 to receive electricity from the fuel cell stack 100 together with the driving motor unit 300.

그리고, 상기 연료전지스택(100)과 차체 사이의 절연을 체크하는 절연고장검출부(20);를 더 포함하고, 상기 제어부(600)는 절연고장신호 수신시 수소밸브(220)를 잠그고 제1릴레이(360)를 오픈하며 제2릴레이(520)를 클로즈시키도록 할 수 있다.The control unit 600 further includes an insulation failure detection unit 20 for checking the insulation between the fuel cell stack 100 and the vehicle body. The control unit 600 locks the hydrogen valve 220 when receiving an insulation failure signal, The second relay 520 can be opened by opening the second relay 360.

절연고장검출부(GFD, ground fault detection)은 다양한 방법으로 제시되어 왔으며, 대표적으로는 KR 10-2011-0016761 A에서 제시하는 지락방지시스템 등이 적용될 수 있다. 본 발명의 절연고장검출부(20)는 연료전지스택(100)과 차체 간의 절연을 체크하는 구성으로써 다양한 구성이 가능하며, 그러한 절연고장검출부(20)의 절연고장 검출시에는 제어부(600)에서 절연고장신호 수신시 수소밸브(220)를 잠그고 제1릴레이(360)를 오픈하며 제2릴레이(520)를 클로즈시키도록 함으로써 수소와 전기를 차단하고 잔여 전압을 급격히 하강시켜 절연실패에 의한 감전 등의 사고를 미연에 방지토록 할 수 있는 것이다.
Ground Fault Detection (GFD) has been proposed in various ways. Typically, the ground fault protection system proposed in KR 10-2011-0016761 A can be applied. The insulation fault detection unit 20 of the present invention may be configured to check insulation between the fuel cell stack 100 and the vehicle body and may have various configurations. When the insulation fault of the insulation fault detection unit 20 is detected, When the failure signal is received, the hydrogen valve 220 is closed, the first relay 360 is opened, and the second relay 520 is closed so that hydrogen and electricity are cut off and the residual voltage is abruptly lowered. It is possible to prevent accidents from occurring.

상술한 바와 같은 구조로 이루어진 연료전지차량의 전기안전시스템에 따르면, 충돌후 스택의 잔류 고전압을 제거하여 고전압에 의한 감전 발생 가능성을 차단할 수 있다.According to the electrical safety system of the fuel cell vehicle having the above-described structure, the residual high voltage of the stack after collision can be removed to prevent the possibility of electric shock due to the high voltage.

또한, 릴레이를 노멀클로즈와 노멀오픈타입을 혼용함으로써 차량의 충돌이 아닌 고장에도 대비할 수 있게 된다.
In addition, by using the normally close and normal open type relays, it is possible to prepare for failures other than vehicle collisions.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당 업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.
While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100 : 연료전지스택 220 : 수소밸브
300 : 구동모터부 360 : 제1릴레이
500 : 저항부 520 : 제2릴레이
600 : 제어부100: Fuel cell stack 220: Hydrogen valve
300: drive motor part 360: first relay
500: Resistor part 520: Second relay
600:

Claims (5)

연료전지스택(100)의 수소공급라인에 마련된 수소밸브(220);
연료전지스택(100)으로부터 제1릴레이(360)를 통해 연결되어 전기를 공급받아 차량을 구동하는 구동모터부(300);
연료전지스택(100)으로부터 제2릴레이(520)를 통해 연결되어 연료전지스택(100)의 잔류 전압을 하락시키는 저항부(500); 및
주행시 제1릴레이(360)를 클로즈하고 제2릴레이(520)를 오픈하며, 차량의 충돌신호 수신시에는 수소밸브(220)를 잠그고 제1릴레이(360)를 오픈하며 제2릴레이(520)를 클로즈시키는 제어부(600);를 포함하는 연료전지차량의 전기안전시스템.A hydrogen valve 220 provided in the hydrogen supply line of the fuel cell stack 100;
A driving motor unit 300 connected to the fuel cell stack 100 through the first relay 360 to receive electricity to drive the vehicle;
A resistor part 500 connected from the fuel cell stack 100 through the second relay 520 to lower the residual voltage of the fuel cell stack 100; And
The first relay 360 is closed and the second relay 520 is opened and the hydrogen valve 220 is closed when the collision signal of the vehicle is received and the first relay 360 is opened and the second relay 520 is closed (600) for closing the fuel cell vehicle. 청구항 1에 있어서,
상기 제1릴레이(360)는 노멀오픈타입이며 주행시 클로징되어 구동모터부(300)에 전기를 공급하는 것을 특징으로 하는 연료전지차량의 전기안전시스템.The method according to claim 1,
Wherein the first relay (360) is a normally open type and is closed during driving to supply electricity to the drive motor unit (300). 청구항 1에 있어서,
상기 제2릴레이(520)는 노멀클로즈타입이며 주행시 오픈되어 연료전지스택(100)의 전력 소모를 방지하는 것을 특징으로 하는 연료전지차량의 전기안전시스템.The method according to claim 1,
Wherein the second relay (520) is a normally closed type and is opened during traveling to prevent power consumption of the fuel cell stack (100). 청구항 1에 있어서,
상기 제1릴레이(360)의 후단에는 고전압부품(400)이 연결되어 구동모터부(300)와 함께 연료전지스택(100)으로부터 전기를 공급받는 것을 특징으로 하는 연료전지차량의 전기안전시스템.The method according to claim 1,
And a high voltage part 400 is connected to the rear end of the first relay 360 to receive electricity from the fuel cell stack 100 together with the driving motor part 300. [ 청구항 1에 있어서,
상기 연료전지스택(100)과 차체 사이의 절연을 체크하는 절연고장검출부(20);를 더 포함하고,
상기 제어부(600)는 절연고장신호 수신시 수소밸브(220)를 잠그고 제1릴레이(360)를 오픈하며 제2릴레이(520)를 클로즈시키는 것을 특징으로 하는 연료전지차량의 전기안전시스템.The method according to claim 1,
And an insulation failure detector (20) for checking insulation between the fuel cell stack (100) and the vehicle body,
Wherein the control unit (600) locks the hydrogen valve (220) when the insulation fault signal is received, opens the first relay (360), and closes the second relay (520).
KR1020130023114A 2013-03-05 2013-03-05 Electric safety system for fuel cell vehicle KR20140110170A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146236A (en) * 2016-11-28 2018-06-12 郑州宇通客车股份有限公司 A kind of hydrogen method of controlling security and system for hydrogen fuel cell car
CN111409571A (en) * 2020-03-25 2020-07-14 武汉格罗夫氢能汽车有限公司 Fault limping processing method and system for hydrogen fuel cell vehicle
US10756369B2 (en) 2018-06-08 2020-08-25 Hyundai Motor Company Fuel cell system for exhausting residual power in emergency situation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108146236A (en) * 2016-11-28 2018-06-12 郑州宇通客车股份有限公司 A kind of hydrogen method of controlling security and system for hydrogen fuel cell car
US10756369B2 (en) 2018-06-08 2020-08-25 Hyundai Motor Company Fuel cell system for exhausting residual power in emergency situation
CN111409571A (en) * 2020-03-25 2020-07-14 武汉格罗夫氢能汽车有限公司 Fault limping processing method and system for hydrogen fuel cell vehicle

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