CN109291809A - A kind of hydrogen energy automobile water discharge control method, equipment and storage equipment - Google Patents
A kind of hydrogen energy automobile water discharge control method, equipment and storage equipment Download PDFInfo
- Publication number
- CN109291809A CN109291809A CN201811195051.9A CN201811195051A CN109291809A CN 109291809 A CN109291809 A CN 109291809A CN 201811195051 A CN201811195051 A CN 201811195051A CN 109291809 A CN109291809 A CN 109291809A
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- Prior art keywords
- controller
- energy automobile
- signal
- fuel cell
- hydrogen
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 88
- 239000001257 hydrogen Substances 0.000 title claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 44
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000012279 drainage procedure Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000008384 membrane barrier Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of hydrogen energy automobile water discharge control method, equipment and storage equipment, its method includes: to convert the signal into CAN signal after car body controller receives the signal of drainage switch and be transferred to gateway, CAN signal is forwarded to VCU (electric machine controller) by gateway, in the case that VCU allows draining, sending to fuel cell pile controller allows drain signal, hydrogen fuel cell pile controller control drain valve becomes being connected from closing, so that liquid water is discharged from water tank.A kind of hydrogen energy automobile drainage control equipment and storage equipment, for realizing hydrogen energy automobile water discharge control method.The beneficial effects of the present invention are: technical solution proposed by the present invention can make draining of the driver directly by switch key control hydrogen energy automobile, during driver's vehicle, in the case that road surface allows, it can directly be drained by switch, it is uncontrolled to avoid hydrogen energy automobile draining, environment is influenced, obtains the problem of threatening caused by safety to other vehicle and pedestrian.
Description
Technical field
The present invention relates to new-energy automobile field more particularly to a kind of hydrogen energy automobile water discharge control methods, equipment and storage
Equipment.
Background technique
As environmental pollution is getting worse, the environmental consciousness of people is more and more stronger, and new-energy automobile gradually substitutes biography
System fuel vehicle, wherein hydrogen energy automobile is using hydrogen as the automobile of main fuel, and in hydrogen input fuel cell, the electronics of hydrogen atom is by proton
Exchange membrane barrier, is transmitted to anode from cathode by external circuit, becomes electrical energy drive motor；Proton can but be handed over by proton
It changes film and oxidation is combined into pure water mist and is discharged, the water of some liquid is discharged outside vehicle at any time, and the place of parking will form product
Water influences environment, will lead to icy road if it is winter, may threaten vehicle and the safety of pedestrian.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of hydrogen energy automobile water discharge control method, equipment and storage equipment,
A kind of hydrogen energy automobile water discharge control method is applied in hydrogen energy automobile, and the hydrogen energy automobile includes: drainage switch, Body Control
Device, gateway, electric machine controller, hydrogen fuel cell pile controller and draining control valve；Drainage switch by hard signal line with
Car body controller connection, is connected between car body controller, gateway, electric machine controller and hydrogen fuel cell pile controller by cable
It connects, the output end of hydrogen fuel cell pile controller is connected to draining control valve by hard signal line, with control draining control
The switch and closure of valve；It is total by CAN between car body controller, gateway, electric machine controller and hydrogen fuel cell pile controller
The communication of line communications protocol；Car body controller itself constitutes BCM network, between hydrogen fuel cell pile controller and electric machine controller
A local area network is formed, gateway plays switching between local area network and BCM network, it is characterised in that: a kind of Hydrogen Energy vapour
Vehicle water discharge control method, comprising the following steps:
S101: when detecting that drainage switch is pressed, drainage switch hard signal is generated, and by signal wire, will be drained
Switch hard signal is transmitted to car body controller；
S102: the drainage switch received control hard signal is converted to CAN network signal by car body controller, and is passed through
CAN network signal is transmitted to gateway by signal wire；
S103: gateway is by the CAN network signal converting received to electric machine controller；
S104: it after electric machine controller receives CAN network signal, determines whether to drain according to the driving state of the vehicle
Operation；If so, going to step S105；If it is not, then terminating drain operation, step S107 is gone to；
S105: electric machine controller, which is sent by signal wire to hydrogen fuel cell pile controller, allows drain signal；
S106: hydrogen fuel cell pile controller receives after allowing drain signal, passes through control line traffic control draining control
Valve is switched to conducting by closing, so that the liquid water in water tank is discharged；Wherein, the water in water tank is from hydrogen fuel cell
Pile；
S107: terminate drainage procedure.
Further, in step S103, the effect of gateway is controlled in car body controller network and hydrogen fuel cell pile
It transfers between device and the local area network of electric machine controller composition, the CAN signal in car body controller network is converted to hydrogen and is fired
In the local area network for expecting battery stack controller and electric machine controller composition.
Further, in step S104, the specific steps of drain operation are determined whether according to the driving state of the vehicle
It is: when vehicle is in low-speed running state or halted state, allows to drain, when vehicle is in high-speed travel state, forbids
Draining；It is low-speed running state when speed is below or equal to preset value x, when speed is 0, is halted state, works as speed
It is high-speed travel state when higher than preset value x；Preset value x is greater than 0.
Further, in step S105, the water in water tank is specifically referred to from hydrogen fuel cell pile: hydrogen fuel electricity
Gas-liquid separator is installed in the pile of pond, the water that can generate hydrogen fuel cell pile is separated into liquid water and vaporous water, wherein
Liquid water flows into water tank through piping, and vaporous water is directly evaporate into air.
Further, car body controller, electric machine controller, gateway, the communication between hydrogen fuel cell pile controller are adopted
It is communicated with CAN bus.
A kind of storage equipment, the storage equipment store instruction and data drain controlling party for realizing a kind of hydrogen energy automobile
Method.
A kind of hydrogen energy automobile drainage control equipment, comprising: processor and the storage equipment；The processor is loaded and is held
Instruction and data in the row storage equipment is for realizing a kind of hydrogen energy automobile water discharge control method.
Technical solution provided by the invention has the benefit that technical solution proposed by the present invention can make driver
Member is directly by the draining of switch key control hydrogen energy automobile, during driver's vehicle in the case where the permission of road surface, by opening
Pass can directly drain, avoid hydrogen energy automobile draining it is uncontrolled, influence environment, to other vehicle and pedestrian obtain safety cause
Threat the problem of.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is the schematic diagram of hydrogen energy automobile water discharge control method principle in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of hydrogen energy automobile water discharge control method in the embodiment of the present invention；
Fig. 3 is the schematic diagram that hardware device works in the embodiment of the present invention.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
The embodiment provides a kind of hydrogen energy automobile water discharge control method, equipment and storage equipment.
Referring to FIG. 1, Fig. 1 is the schematic diagram of hydrogen energy automobile water discharge control method principle in the embodiment of the present invention, comprising: row
Taps, car body controller, gateway, electric machine controller (VCU), hydrogen fuel cell pile controller and draining control valve.Draining
Switch is connected to the input terminal of car body controller by hard signal line, and the output end of car body controller is connected to net by cable
It closes, is connected between gateway and electric machine controller by cable, the output end of electric machine controller is connected to hydrogen fuel electricity by cable
The output end of the input terminal of pond pile controller, hydrogen fuel cell pile controller is connected to draining control by hard signal line
Valve, to control the switch and closure of draining control valve；Car body controller, gateway, electric machine controller and hydrogen fuel cell pile control
It is communicated between device processed by CAN bus communications protocol；Car body controller itself constitutes BCM network, the control of hydrogen fuel cell pile
A local area network is formed between device and VCU, gateway plays switching between local area network and BCM network.
Referring to FIG. 2, Fig. 2 is a kind of flow chart of hydrogen energy automobile water discharge control method in the embodiment of the present invention, it is specific to wrap
Include following steps:
S101: when detecting that drainage switch is pressed, drainage switch hard signal is generated, and by signal wire, will be drained
Switch hard signal is transmitted to car body controller；
S102: the drainage switch received control hard signal is converted to CAN network signal by car body controller, and is passed through
CAN network signal is transmitted to gateway by signal wire；
S103: gateway is by the CAN network signal converting received to electric machine controller；
S104: it after electric machine controller receives CAN network signal, determines whether to drain according to the driving state of the vehicle
Operation；If so, going to step S105；If it is not, then terminating drain operation, step S107 is gone to；
S105: electric machine controller, which is sent by signal wire to hydrogen fuel cell pile controller, allows drain signal；
S106: hydrogen fuel cell pile controller receives after allowing drain signal, passes through control line traffic control draining control
Valve is switched to conducting by closing, so that the liquid water in water tank is discharged；Wherein, the water in water tank is from hydrogen fuel cell
Pile；
S107: terminate drainage procedure.
In step S103, the effect of gateway is in car body controller network and hydrogen fuel cell pile controller and motor control
It transfers between the local area network of device composition processed, the CAN signal in car body controller network is converted to hydrogen fuel cell pile
In the local area network of controller and electric machine controller composition.
In step S104, comprising the concrete steps that for drain operation is determined whether according to the driving state of the vehicle: working as vehicle
When in low-speed running state or halted state, allow to drain, when vehicle is in high-speed travel state, forbids draining；Work as vehicle
It is low-speed running state when speed is below or equal to preset value x, is halted state when speed is 0, is preset when speed is higher than
It is high-speed travel state when value x；Preset value x is greater than 0.
In step S105, the water in water tank is specifically referred to from hydrogen fuel cell pile: in hydrogen fuel cell pile
Gas-liquid separator is installed, the water that can generate hydrogen fuel cell pile is separated into liquid water and vaporous water, wherein liquid water warp
Piping flows into water tank, and vaporous water is directly evaporate into air.
Car body controller, electric machine controller, gateway, the communication between hydrogen fuel cell pile controller use CAN bus
Communication.
Fig. 3 is referred to, Fig. 3 is the hardware device operation schematic diagram of the embodiment of the present invention, and the hardware device specifically includes:
A kind of hydrogen energy automobile drainage control equipment 301, processor 302 and storage equipment 303.
A kind of hydrogen energy automobile drainage control equipment 301: a kind of hydrogen energy automobile drainage control equipment 301 realizes described one
Kind hydrogen energy automobile water discharge control method.
Processor 302: the processor 302 loads and executes the instruction in the storage equipment 303 and data for real
A kind of existing hydrogen energy automobile water discharge control method.
Store equipment 303: 303 store instruction of storage equipment and data；The storage equipment 303 is for realizing described
A kind of hydrogen energy automobile water discharge control method.
The beneficial effects of the present invention are: technical solution proposed by the present invention can make driver directly pass through switch key
The draining for controlling hydrogen energy automobile in the case that road surface allows during driver's vehicle, can be drained directly by switch, be kept away
It is uncontrolled to have exempted from hydrogen energy automobile draining, has influenced environment, obtains the problem of threatening caused by safety to other vehicle and pedestrian.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of hydrogen energy automobile water discharge control method is applied in hydrogen energy automobile, the hydrogen energy automobile includes: drainage switch, vehicle
Body controller, gateway, electric machine controller, hydrogen fuel cell pile controller and draining control valve；Drainage switch is believed by rigid line
Number line is connected to the input terminal of car body controller, and the output end of car body controller is connected to gateway by cable, and gateway passes through net
Line is connected to electric machine controller, and electric machine controller is connected to by cable with the input terminal of hydrogen fuel cell pile controller, hydrogen combustion
The output end of material battery stack controller is connected to draining control valve by hard signal line, to control the switch of draining control valve
And closure；It is communicated and is assisted by CAN bus between car body controller, gateway, electric machine controller and hydrogen fuel cell pile controller
View communication；Car body controller itself constitutes BCM network, and one is formed between hydrogen fuel cell pile controller and electric machine controller
Local area network, gateway play switching between local area network and BCM network, which is characterized in that the hydrogen energy automobile draining control
Method processed: the following steps are included:
S101: when detecting that drainage switch is pressed, drainage switch hard signal is generated, and by signal wire, by drainage switch
Hard signal is transmitted to car body controller；
S102: the drainage switch received control hard signal is converted to CAN network signal by car body controller, and passes through signal
CAN network signal is transmitted to gateway by line；
S103: gateway is by the CAN network signal converting received to electric machine controller；
S104: after electric machine controller receives CAN network signal, draining behaviour is determined whether according to the driving state of the vehicle
Make；If so, going to step S105；If it is not, then terminating drain operation, step S107 is gone to；
S105: electric machine controller, which is sent by signal wire to hydrogen fuel cell pile controller, allows drain signal；
S106: hydrogen fuel cell pile controller receive allow drain signal after, by control line traffic control draining control valve by
Closing is switched to conducting, so that the liquid water in water tank is discharged；Wherein, the water in water tank is from hydrogen fuel cell electricity
Heap；
S107: terminate drainage procedure.
2. a kind of hydrogen energy automobile water discharge control method as described in claim 1, it is characterised in that: in step S103, gateway
Effect is carried out between the local area network that car body controller network and hydrogen fuel cell pile controller and electric machine controller form
Switching converts the CAN signal in car body controller network to hydrogen fuel cell pile controller and electric machine controller composition
In local area network.
3. a kind of hydrogen energy automobile water discharge control method as described in claim 1, it is characterised in that: in step S104, according to vehicle
Driving status determine whether comprising the concrete steps that for drain operation: when vehicle is in low-speed running state or halted state
When, allow to drain, when vehicle is in high-speed travel state, forbids draining；When speed is below or equal to preset value x, it is
Low-speed running state is halted state when speed is 0, is high-speed travel state when speed is higher than preset value x；Preset value x
Greater than 0.
4. a kind of hydrogen energy automobile water discharge control method as described in claim 1, it is characterised in that: in step S105, water tank
In water specifically referred to from hydrogen fuel cell pile: gas-liquid separator is installed in hydrogen fuel cell pile, hydrogen can be fired
The water that material battery stack generates is separated into liquid water and vaporous water, wherein liquid water flows into water tank through piping, and vaporous water is straight
It connects and evaporate into air.
5. a kind of hydrogen energy automobile water discharge control method as described in claim 1, it is characterised in that: car body controller, motor control
Device processed, gateway, the communication between hydrogen fuel cell pile controller are communicated using CAN bus.
6. a kind of storage equipment, it is characterised in that: the storage equipment store instruction and data are for realizing Claims 1 to 5
Any one described hydrogen energy automobile water discharge control method.
7. a kind of hydrogen energy automobile drainage control equipment, it is characterised in that: include: processor and the storage equipment；The place
Reason device loads and executes the instruction in the storage equipment and data for realizing any one hydrogen described in Claims 1 to 5
It can automobile water discharge control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195051.9A CN109291809A (en) | 2018-10-15 | 2018-10-15 | A kind of hydrogen energy automobile water discharge control method, equipment and storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195051.9A CN109291809A (en) | 2018-10-15 | 2018-10-15 | A kind of hydrogen energy automobile water discharge control method, equipment and storage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109291809A true CN109291809A (en) | 2019-02-01 |
Family
ID=65162607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195051.9A Pending CN109291809A (en) | 2018-10-15 | 2018-10-15 | A kind of hydrogen energy automobile water discharge control method, equipment and storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109291809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130943A (en) * | 2021-03-31 | 2021-07-16 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen energy automobile fuel cell drainage system and method thereof |
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| US20060068240A1 (en) * | 2004-09-28 | 2006-03-30 | Nissan Motor Co., Ltd. | Fuel cell system |
| CN201323220Y (en) * | 2008-12-22 | 2009-10-07 | 新源动力股份有限公司 | Water separator for fuel cell hydrogen system |
| US20110048837A1 (en) * | 2009-08-31 | 2011-03-03 | Hyundai Motor Company | Hydrogen exhaust system for fuel cell vehicle |
| CN102069763A (en) * | 2010-12-28 | 2011-05-25 | 奇瑞汽车股份有限公司 | Vehicle body controller and control method thereof |
| CN202827401U (en) * | 2012-07-04 | 2013-03-27 | 北京汽车股份有限公司 | Automobile body controller system and automobile thereof |
| EP3073560A1 (en) * | 2015-03-27 | 2016-09-28 | Kyocera Corporation | Image processing apparatus, image capturing apparatus, water discharge control system and vehicle |
| CN108539222A (en) * | 2018-06-06 | 2018-09-14 | 同济大学 | A kind of on-vehicle fuel multiple module paralleling hydrogen gas circulating system and its control method |
-
2018
- 2018-10-15 CN CN201811195051.9A patent/CN109291809A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060068240A1 (en) * | 2004-09-28 | 2006-03-30 | Nissan Motor Co., Ltd. | Fuel cell system |
| CN201323220Y (en) * | 2008-12-22 | 2009-10-07 | 新源动力股份有限公司 | Water separator for fuel cell hydrogen system |
| US20110048837A1 (en) * | 2009-08-31 | 2011-03-03 | Hyundai Motor Company | Hydrogen exhaust system for fuel cell vehicle |
| CN102069763A (en) * | 2010-12-28 | 2011-05-25 | 奇瑞汽车股份有限公司 | Vehicle body controller and control method thereof |
| CN202827401U (en) * | 2012-07-04 | 2013-03-27 | 北京汽车股份有限公司 | Automobile body controller system and automobile thereof |
| EP3073560A1 (en) * | 2015-03-27 | 2016-09-28 | Kyocera Corporation | Image processing apparatus, image capturing apparatus, water discharge control system and vehicle |
| CN108539222A (en) * | 2018-06-06 | 2018-09-14 | 同济大学 | A kind of on-vehicle fuel multiple module paralleling hydrogen gas circulating system and its control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113130943A (en) * | 2021-03-31 | 2021-07-16 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen energy automobile fuel cell drainage system and method thereof |
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Application publication date: 20190201 |
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