CN109050311A - The control system and method for hydrogen fuel car major loop open-circuit-protection - Google Patents
The control system and method for hydrogen fuel car major loop open-circuit-protection Download PDFInfo
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- CN109050311A CN109050311A CN201810950050.4A CN201810950050A CN109050311A CN 109050311 A CN109050311 A CN 109050311A CN 201810950050 A CN201810950050 A CN 201810950050A CN 109050311 A CN109050311 A CN 109050311A
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- 239000000446 fuel Substances 0.000 title claims abstract description 151
- 239000001257 hydrogen Substances 0.000 title claims abstract description 40
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 40
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000001301 oxygen Substances 0.000 claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 239000000498 cooling water Substances 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000003745 diagnosis Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000026676 system process Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- 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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04955—Shut-off or shut-down of fuel cells
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
-
- 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
- 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
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
Abstract
The present invention discloses the control system and method for a kind of hydrogen fuel car major loop open-circuit-protection, the control system includes fuel cell pile end, power battery end and CAN network, battery stack end is connect with power battery end by booster T, CAN network is used for the CAN communication of vehicle, CAN network divides two-way CAN communication, reduce CAN linear load rate, improve VCU resource utilization, convenient for quickly checking out high voltage parts failure position and solving failure problems in time, be conducive to debugging with after sale, utilize the control system, the present invention can fuel cell electric vehicle main loop circuit when something goes wrong, the extra electricity that hydrogen remaining in fuel cell pile and oxygen carry out chemical reaction generation is bled off in time, it causes to damage to avoid to other electronic components, cause hydrogen fuel cell Service life declines to a great extent with durability degree, effective protection fuel cell pile performance, the safety and reliability for reducing electrokinetic cell system energy consumption, improving fuel cell system process.
Description
Technical field
The invention belongs to hydrogen powered vehicle technical fields, specifically, being related to a kind of hydrogen fuel car major loop open circuit guarantor
The control system and method for shield.
Background technique
Fuel cell electric vehicle is a kind of power source or main power source using fuel cell system as electric car
New-energy automobile, fuel cell are a kind of power generator that directly chemical energy can be converted to electric energy, and transfer efficiency is usually remote
Much higher than internal combustion engine, fuel cell is very quiet, zero-emission, moreover it is possible to which the advantages that solving the problems, such as peak load regulation network possesses it very
Wide Developing Extension prospect.
When fuel cell electric vehicle main loop circuit when something goes wrong, fuel cell major loop fuse can fuse with
Circuit system is protected, but when fuse blows, hydrogen and oxygen concentration are still greater than the threshold of reaction in fuel cell pile, residual
The hydrogen and oxygen stayed also will continue to carry out chemical reaction power generation, only when hydrogen and oxygen concentration are less than the threshold of reaction, reach
It will not be chemically reacted after suitable concentration range, stop power generation, need in time to bleed off the extra electricity of generation at this time,
It causes to damage to avoid to other electronic components, the service life of hydrogen fuel cell is caused to decline to a great extent with durability degree, in order to
The control system and method for a kind of major loop open-circuit-protection used on hydrogen fuel car are provided, with effective protection fuel cell
Performance, service life and useful life longevity, solve the problems, such as that the performance degradation of fuel cell pile is fireballing, the present invention provides with
Lower technical solution.
Summary of the invention
The purpose of the present invention is to provide the control systems and method of a kind of hydrogen fuel car major loop open-circuit-protection.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of control system of hydrogen fuel car major loop open-circuit-protection, including fuel cell pile end, power battery
End and CAN network, the fuel cell pile are connected with high-pressure hydrogen storing tank and air compressor machine, and high-pressure hydrogen storing tank is fuel cell pile
Hydrogen needed for providing reaction, oxygen needed for air compressor machine provides reaction for fuel cell pile, the fuel cell pile is also
It is connected with heat management system, heat management system includes cooling fin, heat dissipation dispersion, cooling water tank and cooling water pump；
One end of the anode connection counnter attack diode D1 of the fuel cell pile and one end of electric discharge contactor KM4, put
The other end of electric contactor KM4 is sequentially connected capacitor C1 and resistance R1, the cathode of resistance R1 connection fuel cell pile, capacitor C1
On be parallel with resistance R2, one end of the other end connection fuel cell contact device KM2 of the counnter attack diode D1, fuel cell connects
The other end of tentaculum KM2 connects booster T, the anode of one end connection fuel cell pile of electric discharge contactor KM3, and the other end connects
One end of connecting resistance R3, the cathode of the other end connection connection fuel cell pile of resistance R3, current sensor are arranged in fuel
On the negative electrode bus of battery stack；
The power battery end includes power battery, the anode connection inspection switch MSD of power battery, the other end of MSD
It is connect with one end of main contactor KM1, the other end connection fuel cell major loop fuse FU1's of the main contactor KM1
One end, the other end of fuel cell major loop fuse FU1 connect booster T, the fuel cell DC/DC voltage reduction module contact
One end of one end connection fuel cell DC/DC voltage reduction module of device KM5, the other end connect the anode of power battery, fuel cell
The other end of DC/DC voltage reduction module connects the cathode of power battery, is provided with radiator fan on fuel cell DC/DC voltage reduction module
With cooling water pump；
The CAN network include entire car controller VCU, instrument, battery management system BMS, fuel cell controller FCU,
Cooling water pump, radiator fan and DC/DC voltage reduction module, the vehicle CAN network are divided to two by the channel CAN_1 and the channel CAN_2
Road CAN communication, wherein the channel CAN_1 connection battery management system BMS and the other communication apparatus of vehicle, the connection of the channel CAN_2 are fired
Expect that battery controller FCU, cooling water pump, radiator fan and DC/DC voltage reduction module, the CAN line are connected using Shielded Twisted Pair,
Two-way CAN line is separately connected two terminal resistance R.
The hydrogen fuel car control method of major loop open-circuit-protection, includes the following steps:
Current sensor monitoring current value simultaneously converts voltage signal for current value signals and feeds back to fuel cell controller
FCU, when the value of feedback that fuel cell controller FCU is received is less than preset threshold, fuel cell controller FCU controls fuel
Battery contactor KM2 is disconnected, electric discharge contactor KM3 and electric discharge contactor KM4 closure, by C1, R1, R2, R3 by remaining capacity
Bleed off, fuel cell controller FCU control cutting hydrogen-feeding system, oxygen system, stop to fuel cell pile convey hydrogen and
Oxygen；
Fuel cell controller FCU will be disconnected after fuel cell DC/DC voltage reduction module contactor KM5 delay time T, fired
Before expecting that battery DC/DC voltage reduction module contactor KM5 is disconnected, water pump works on radiator fan when reacting fuel cell pile
The heat of generation is taken away in time, and fuel cell pile is made to be cooled to suitable temperature range, guarantees that fuel cell pile is in most
Good temperature range；
The fault alarm information of diagnosis is directly sent to instrument by the channel CAN_2 of CAN line by fuel cell controller FCU
Table, the fault alarm information real-time display of diagnosis is in instrument main interface, after driver checks fuel cell information, by whole
Vehicle controller VCU closes fuel cell pile end, only uses power battery as vehicle power resources.
Beneficial effects of the present invention:
1, the present invention can fuel cell electric vehicle main loop circuit when something goes wrong, will be in fuel cell pile
The extra electricity that remaining hydrogen and oxygen carry out chemical reaction generation is bled off in time, is caused to avoid to other electronic components
Damage, causes the service life of hydrogen fuel cell to decline to a great extent with durability degree, and effective protection fuel cell pile performance is reduced and moved
Power battery system energy consumption, the safety and reliability for improving fuel cell system process；
2, vehicle CAN network of the invention divides two-way CAN communication, reduces CAN linear load rate, improves VCU resource utilization,
Convenient for quickly checking out vehicle any partial high pressure components failure and solving failure problems in time, be conducive to debugging and sell
Afterwards.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is the functional block diagram of the control system of the automobile-used major loop open-circuit-protection of hydrogen fuel；
Fig. 2 is the CAN network structural block diagram of the control system of the automobile-used major loop open-circuit-protection of hydrogen fuel.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
A kind of control system of hydrogen fuel car major loop open-circuit-protection, as shown in Figure 1, including fuel cell pile
End, power battery end and CAN network, the fuel cell pile are connected with high-pressure hydrogen storing tank and air compressor machine, and high-pressure hydrogen storing tank is
Hydrogen needed for fuel cell pile provides reaction, oxygen needed for air compressor machine provides reaction for fuel cell pile, the combustion
Material battery stack is also connected with heat management system, and heat management system includes cooling fin, heat dissipation dispersion, cooling water tank and cooling water
Pump reacts the water generated to fuel cell pile with radiator fan by cooling fin and cools down rear Directed cooling water tank,
Cooling water pump is cooled down to fuel cell pile from cooling water pump, reduces the performance degradation of fuel cell pile.
One end of the anode connection counnter attack diode D1 of the fuel cell pile and one end of electric discharge contactor KM4, institute
Negative-phase sequence curent of the counnter attack diode D1 for blocking main driving winding loop to generate is stated, the other end for the contactor KM4 that discharges is successively
Connect capacitor C1 and resistance R1, the cathode of resistance R1 connection fuel cell pile is parallel with resistance R2, the capacitor on capacitor C1
C1, resistance R1, resistance R2 connect fuel cell contact device for absorbing peak current, the other end of the counnter attack diode D1
One end of KM2, the other end of fuel cell contact device KM2 connect booster T, one end connection fuel electricity of electric discharge contactor KM3
The anode of pond pile, the other end connect one end of resistance R3, and the other end connection of resistance R3 connects the cathode of fuel cell pile,
Current sensor is arranged on the negative electrode bus of fuel cell pile；Electric current of the resistance R3 on control bus obtains fastly
Quick-release is put, and the current sensor is for detecting fuel cell bus output electric current.
The power battery end includes power battery, the anode connection inspection switch MSD of power battery, the other end of MSD
It is connect with one end of main contactor KM1, the other end connection fuel cell major loop fuse FU1's of the main contactor KM1
One end, the other end of fuel cell major loop fuse FU1 connect booster T, the fuel cell DC/DC voltage reduction module contact
One end of one end connection fuel cell DC/DC voltage reduction module of device KM5, the other end connect the anode of power battery, fuel cell
The other end of DC/DC voltage reduction module connects the cathode of power battery, is provided with radiator fan on fuel cell DC/DC voltage reduction module
With cooling water pump, fuel cell DC/DC voltage reduction module is cooled down.
The CAN network be used for vehicle CAN communication, as shown in Fig. 2, the CAN network include entire car controller VCU,
Instrument, battery management system BMS, fuel cell controller FCU, cooling water pump, radiator fan and DC/DC voltage reduction module, it is described
Vehicle CAN network divides two-way CAN communication by the channel CAN_1 and the channel CAN_2, and wherein the channel CAN_1 connects battery management system
System BMS and the other communication apparatus of vehicle, the channel CAN_2 connect fuel cell controller FCU, cooling water pump, radiator fan and DC/
DC voltage reduction module reduces CAN linear load rate, improves VCU resource utilization, convenient for quickly checking out vehicle which partial high pressure zero
Part breaks down and solves failure problems in time, is conducive to debugging with after sale, the CAN line is prevented using Shielded Twisted Pair connection
Electromagnetic interference, two-way CAN line are separately connected two terminal resistance R, so that cable terminal impedance is kept continuous, cut down the anti-of electric signal
Interference caused by penetrating.
Control method using the control system of the major loop open-circuit-protection includes the following steps:
Current sensor monitoring current value simultaneously converts voltage signal for current value signals and feeds back to fuel cell controller
FCU, when the value of feedback that fuel cell controller FCU is received is less than preset threshold, fuel cell controller FCU controls fuel
Battery contactor KM2 is disconnected, electric discharge contactor KM3 and electric discharge contactor KM4 closure, by C1, R1, R2, R3 by remaining capacity
Bleed off, fuel cell controller FCU control cutting hydrogen-feeding system, oxygen system, stop to fuel cell pile convey hydrogen and
Oxygen, fuel cell pile remnants hydrogen and oxygen concentration will not carry out chemical reaction generation electricity after being less than the threshold of reaction.
When fuel cell power generation, a large amount of heat can be also generated, it is therefore desirable to the torrid zone that pile generates be walked in time, otherwise can
It overheats, burns out pile dielectric film, fuel cell pile is prevented to directly affect the performance of fuel cell system from working,
Fuel cell controller FCU will be disconnected after fuel cell DC/DC voltage reduction module contactor KM5 delay time T, in fuel cell
Before DC/DC voltage reduction module contactor KM5 is disconnected, water pump works on the heat generated when reacting fuel cell pile with fan
It takes away in time, fuel cell pile is made to be cooled to suitable temperature range, guarantee that fuel cell pile is in optimal temperature model
It encloses, performance, service life and the useful life longevity of effective protection fuel cell reduce the performance degradation of fuel cell pile.
The fault alarm information of diagnosis is directly sent to instrument by the channel CAN line CAN_2 by fuel cell controller FCU
Table, for the fault alarm information real-time display of diagnosis in instrument main interface, driver intuitively views fuel cell information,
Fuel cell pile end is closed by entire car controller VCU, only uses power battery as vehicle power resources, driver is according to instrument
Table platform SOC value judges, and vehicle is opened to nearest maintenance station, and adjustor finds out failure problems and solves in time.
The present invention can fuel cell electric vehicle main loop circuit when something goes wrong, will be residual in fuel cell pile
The extra electricity that the hydrogen and oxygen stayed carries out chemical reaction generation is bled off in time, causes to damage to avoid to other electronic components
Wound, causes the service life of hydrogen fuel cell to decline to a great extent with durability degree.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (5)
1. the control system and method for hydrogen fuel car major loop open-circuit-protection, which is characterized in that the control system includes combustion
Material battery stack end, power battery end and CAN network, the fuel cell pile are connected with high-pressure hydrogen storing tank and air compressor machine, high
Hydrogen needed for pressure hydrogen container provides reaction for fuel cell pile, oxygen needed for air compressor machine provides reaction for fuel cell pile
Gas；
One end of the anode connection counnter attack diode D1 of the fuel cell pile and one end of electric discharge contactor KM4, electric discharge connect
The other end of tentaculum KM4 is sequentially connected capacitor C1 and resistance R1, the cathode of resistance R1 connection fuel cell pile, on capacitor C1 simultaneously
It is associated with resistance R2, one end of the other end connection fuel cell contact device KM2 of the counnter attack diode D1, fuel cell contact device
The other end of KM2 connects booster T, the anode of one end connection fuel cell pile of electric discharge contactor KM3, other end connection electricity
One end of R3, the cathode of the other end connection connection fuel cell pile of resistance R3 are hindered, current sensor is arranged in fuel cell
On the negative electrode bus of pile；
The power battery end includes power battery, the anode connection inspection switch MSD of power battery, the other end of MSD and master
One end of contactor KM1 connects, one end of the other end connection fuel cell major loop fuse FU1 of the main contactor KM1,
The other end of fuel cell major loop fuse FU1 connects booster T, the fuel cell DC/DC voltage reduction module contactor KM5
One end connection fuel cell DC/DC voltage reduction module one end, the other end connect power battery anode, fuel cell DC/DC
The cathode of the other end connection power battery of voltage reduction module；
The CAN network includes entire car controller VCU, instrument, battery management system BMS, fuel cell controller FCU, cooling
Water pump, radiator fan and DC/DC voltage reduction module, the vehicle CAN network divide two-way CAN by the channel CAN_1 and the channel CAN_2
Communication, wherein the channel CAN_1 connection battery management system BMS and the other communication apparatus of vehicle, the channel CAN_2 connect fuel cell
Controller FCU, cooling water pump, radiator fan and DC/DC voltage reduction module.
2. the control system and method for hydrogen fuel car major loop open-circuit-protection according to claim 1, feature exist
In the fuel cell pile is also connected with heat management system, and heat management system includes cooling fin, heat dissipation dispersion, cooling water tank
With cooling water pump.
3. the control system and method for hydrogen fuel car major loop open-circuit-protection according to claim 1, feature exist
In being provided with radiator fan and cooling water pump on the fuel cell DC/DC voltage reduction module.
4. the control system and method for hydrogen fuel car major loop open-circuit-protection according to claim 1, feature exist
In the CAN line is connected using Shielded Twisted Pair, and two-way CAN line is separately connected two terminal resistance R.
5. the control system and method for hydrogen fuel car major loop open-circuit-protection according to claim 1, feature exist
In the control method includes the following steps:
The current sensor monitoring current value simultaneously converts voltage signal for current value signals and feeds back to fuel cell controller
FCU, when the value of feedback that fuel cell controller FCU is received is less than preset threshold, fuel cell controller FCU controls fuel
Battery contactor KM2 is disconnected, electric discharge contactor KM3 and electric discharge contactor KM4 closure, by C1, R1, R2, R3 by remaining capacity
Bleed off, fuel cell controller FCU control cutting hydrogen-feeding system, oxygen system, stop to fuel cell pile convey hydrogen and
Oxygen；
The fuel cell controller FCU will be disconnected after fuel cell DC/DC voltage reduction module contactor KM5 delay time T, fired
Before expecting that battery DC/DC voltage reduction module contactor KM5 is disconnected, water pump works on radiator fan when reacting fuel cell pile
The heat of generation is taken away in time, and fuel cell pile is made to be cooled to suitable temperature range, guarantees that fuel cell pile is in most
Good temperature range；
The fault alarm information of diagnosis is directly sent to instrument by the channel CAN_2 of CAN line by the fuel cell controller FCU
Table, the fault alarm information real-time display of diagnosis is in instrument main interface, after driver checks fuel cell information, by whole
Vehicle controller VCU closes fuel cell pile end, only uses power battery as vehicle power resources.
Priority Applications (1)
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|---|---|---|---|
| CN201810950050.4A CN109050311A (en) | 2018-08-20 | 2018-08-20 | The control system and method for hydrogen fuel car major loop open-circuit-protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810950050.4A CN109050311A (en) | 2018-08-20 | 2018-08-20 | The control system and method for hydrogen fuel car major loop open-circuit-protection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126966A (en) * | 2019-04-23 | 2019-08-16 | 同济大学 | A kind of fuel battery electric power system for motorcycles of No DC-DC transformer |
| CN110370990A (en) * | 2019-09-16 | 2019-10-25 | 潍柴动力股份有限公司 | A kind of fuel cell pile guard method, device and electric power supply system of fuel cell |
| CN110588352A (en) * | 2019-09-27 | 2019-12-20 | 中植一客成都汽车有限公司 | Pre-charging protection circuit and method for vehicle-mounted hydrogen fuel cell and electric vehicle |
| CN111361434A (en) * | 2019-12-18 | 2020-07-03 | 山东明宇新能源技术有限公司 | Power system for hydrogen fuel cell passenger car |
| CN111391669A (en) * | 2020-03-31 | 2020-07-10 | 东风汽车集团有限公司 | Abnormal out-of-control circuit and control method for hydrogen fuel automobile motor |
| CN113501261A (en) * | 2021-07-06 | 2021-10-15 | 柳文炎 | Battery recovery system of electric automobile |
| CN114006008A (en) * | 2021-09-14 | 2022-02-01 | 东风汽车集团股份有限公司 | Fuel cell system control device |
| CN114905984A (en) * | 2022-07-15 | 2022-08-16 | 中国重汽集团济南动力有限公司 | Hydrogen fuel electrical control system and method |
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| CN202471929U (en) * | 2012-03-28 | 2012-10-03 | 中国东方电气集团有限公司 | Device for testing fuel battery stack |
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| CN110126966A (en) * | 2019-04-23 | 2019-08-16 | 同济大学 | A kind of fuel battery electric power system for motorcycles of No DC-DC transformer |
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| CN110588352A (en) * | 2019-09-27 | 2019-12-20 | 中植一客成都汽车有限公司 | Pre-charging protection circuit and method for vehicle-mounted hydrogen fuel cell and electric vehicle |
| CN111361434A (en) * | 2019-12-18 | 2020-07-03 | 山东明宇新能源技术有限公司 | Power system for hydrogen fuel cell passenger car |
| CN111361434B (en) * | 2019-12-18 | 2024-04-19 | 山东济燃氢动力有限公司 | Power system for hydrogen fuel cell passenger car |
| CN111391669A (en) * | 2020-03-31 | 2020-07-10 | 东风汽车集团有限公司 | Abnormal out-of-control circuit and control method for hydrogen fuel automobile motor |
| CN113501261A (en) * | 2021-07-06 | 2021-10-15 | 柳文炎 | Battery recovery system of electric automobile |
| CN113501261B (en) * | 2021-07-06 | 2022-07-01 | 赣州知星科技合伙企业(有限合伙) | Battery recycling system of electric automobile |
| CN114006008A (en) * | 2021-09-14 | 2022-02-01 | 东风汽车集团股份有限公司 | Fuel cell system control device |
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