CN209447936U - A kind of fuel battery engines intelligent control platform - Google Patents
A kind of fuel battery engines intelligent control platform Download PDFInfo
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- CN209447936U CN209447936U CN201920348742.1U CN201920348742U CN209447936U CN 209447936 U CN209447936 U CN 209447936U CN 201920348742 U CN201920348742 U CN 201920348742U CN 209447936 U CN209447936 U CN 209447936U
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- fuel battery
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- 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
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- 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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Abstract
The utility model discloses a kind of fuel battery engines intelligent control platforms, including fuel cell pile, pile device for monitoring running, pile running environment control device, controller, host computer, wherein, controller is used to receive the data of pile device for monitoring running acquisition and is handled, and control instruction is issued to pile running environment control device, control the work of fuel cell pile；It is communicated between controller and pile device for monitoring running, pile running environment control device by CAN bus, passes through serial communication between controller and host computer；On-off signal, output switch parameter, analog input/output have optoelectronic isolation protective circuit, improve electromagnetic compatibility and electrical safety.The intelligent control platform solves that current most fuel battery engine controller hardware has a single function, quality is irregular, poor expandability, is difficult to meet the software and hardware resources needs of problems of current fuel battery engines and vehicle intellectualized control.
Description
Technical field
The utility model belongs to automobile fuel field of batteries, and in particular to a kind of fuel battery engines intelligent control is flat
Platform.
Background technique
Fuel battery engines controller is the brain of fuel battery engines, and the safety for controlling fuel battery engines can
By operation.The function of fuel battery engines controller mainly includes gas management, fulgurite reason, water management, heat management, communication function
With fault diagnosis.
(1) gas management, hydrogen fuel cell is mainly generated electricity by reacting for hydrogen and oxygen, therefore gas management is in systems
Play a significant role.First according to the power currently set, to select the reaction gas pressure under optimal operational condition, another party
Face, reaction gas constantly consume, and the variation of flow will lead to the fluctuation of pressure.It, must in order to guarantee the normal operation of fuel cell
Reasonable gas management system must be designed.
(2) fulgurite is managed, and mainly the voltage detecting including each single battery, output electric current are excessively electric for the fulgurite reason of fuel cell
Stream protection etc..During operation of fuel cells, battery pack monitor wants real-time detection single battery voltage, output total voltage, output
Electric current etc..If there is the damage of certain monocell, it may cause battery pack and be not normally functioning, or even explosion.When output current overload
When, battery pack also will appear failure and danger, at this moment will stop battery pack work in time.
(3) water management can not only increase the peak power of battery, but also can increase electricity using effective water management
Stability of the pond when peak power works.Inside battery humidity appropriate is kept, and excludes the extra water of cathode side in time, is
Ensure Proton Exchange Membrane Fuel Cells stable operation and extends the important means of working life, to ensure battery performance, reaction
Gas must pre-humidification.This battery pack uses circulation of tail gas reaction gas humidifying method.Due to the water that is generated in FCE electrochemical reaction and
Water transmits in battery, and the humidity of battery pack discharge tail gas has reached or close to 100%, as long as therefore following battery tail gas
Ring mixes with the new reaction gas being not yet humidified that enters, enters back into battery pack, that is, can reach the purpose to reaction gas humidification.Tail gas
Circulation is carried out using blower, and the humidity of stack inlet reaction gas is then determined by recycled offgas humidity with recycle ratio.Increase blower
Revolving speed can increase recycle ratio, to improve reaction gas humidity.
(4) heat management, heat management refer to the control to battery operating temperature.60- is maintained in FCE stack operating temperature
75 DEG C have 50% or so heat that must exclude.It needs to take cooling provision appropriate, such as air-cooled or water cooling, to maintain battery
Group operating temperature.If system enters water tank after using water cooling, recirculated cooling water to pass through deionization, by adjusting the revolving speed of water pump,
It can control the flow of cooling water, cooling water passes through two-way, is all the way radiator, is all the way bypass valve, last return water is again
Return to water tank.By adjusting the aperture of bypass valve, i.e., the ratio of the controllable water for flowing through radiator, so as to so that fuel cell
Group is rapidly heated.Coolant liquid uses deionized water, requires the conductance of water very strict.
(5) communication function, a part of FCE as vehicle need to receive the work order of entire car controller and to vehicle
Controller reports the working condition and running parameter of current FCE, this requires to realize by the communication function of FCE controller.Together
When, FCE controller also needs to communicate with equipment such as computer, diagnostic equipments to realize the functions such as debugging and fault diagnosis.
(6) fault diagnosis, controller failure diagnostic function can quickly position automotive electric fault；Guarantee to drive a vehicle simultaneously
Occurs the safety of vehicle when electric fault in journey, reasonable troubleshooting is the core of automobile function safety.The event of FCE controller
Barrier diagnosis degree of perfection determines that FCE is with fuel cell car safety reliability and maintainable for a long time.
Existing hydrogen is that the controller of the fuel cell of fuel mainly includes power management module, lambda sensor control mould
Block, throttle control module, simulation input output module, On-off signal output module, patches gas nozzle control module
Part, single-chip microcontroller.
Existing fuel battery engines controller is in the high-speed developing period, but lot-size is still smaller, levels of audit quality
It is uneven.Fuel cell system is the complicated electrochemical appliance an of multiple-input and multiple-output, and fuel cell is usually by many monomers
It is connected in series.During fuel cell operation, fuel cell controller can real-time detection and control system state, according to
The actual motion state of battery provides required raw material and suitable environment, guarantees that fuel cell is reliably and effectively run.Level
Uneven fuel battery engines controller quality be it is difficult to ensure that fuel cell system high efficient and reliable run.
The iteration that existing most fuel battery engine controller is undergone mostly is less, less consideration functional safety, electricity
The extension requirement that magnetic is compatible, Safety Redundancy and intelligent control are to chip and system.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of fuel battery engines intelligent control platform, solutions
Having determined, current most fuel battery engine controller hardware has a single function, quality is irregular, poor expandability, is difficult to meet
Fuel battery engines and the problem of the software and hardware resources demand of vehicle intellectualized control at present.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of fuel battery engines intelligent control platform, including fuel cell pile, pile device for monitoring running, pile
Running environment control device, controller, host computer, wherein pile device for monitoring running includes temperature monitoring device, water monitoring dress
It sets, hydrogen monitoring device, voltage and current monitoring device, air monitoring device；Pile running environment control device include air pump,
Water pump, air inlet and exhaust valve, gas nozzle；Controller is used to receive the data of pile device for monitoring running acquisition and is handled, and
Control instruction is issued to pile running environment control device, controls the work of fuel cell pile；Controller and pile operation are supervised
It surveys between device, pile running environment control device and is communicated by CAN bus, it is logical by serial ports between controller and host computer
Letter.
The controller includes that core single-chip microcontroller, CAN interface filter circuit, digital quantity input expander, digital quantity are defeated
Expanded circuit, A/D converter circuit, current/charge-voltage convertor out；The CAN interface filter circuit CAN with core single-chip microcontroller respectively
Port is connected with fuel battery engines CAN network；The input terminal of digital quantity input expander connects fuel battery engines
Digital sensors, output end connect core single-chip microcontroller digital quantity input terminal；The input terminal of digital output expanded circuit
The digital output end of core single-chip microcontroller is connected, output end connects the inductive load of fuel battery engines；A/D converter circuit
Input terminal connects the analog sensor of fuel battery engines, and output end connects the analog input end of core single-chip microcontroller；Electricity
The analog output end of the input terminal connection core single-chip microcontroller of piezo-electric stream conversion circuit, output end connect fuel battery engines
DC/DC and frequency converter；Digital quantity input expander, digital output expanded circuit, CAN interface filter circuit and core list
Photoelectric isolating circuit is all had between piece machine.
The digital sensors of fuel battery engines include each Boolean value output sensor, and analog sensor includes each voltage
Signal transducer, current signal sensor；Analog sensor detects that analog quantity information is converted to number by A/D converter circuit
Word amount is transmitted to core single-chip microcontroller；Core single-chip microcontroller handles the acquisition signal received, and is issued according to processing result
Control instruction and communication instruction.
Each part of fuel cell pile is respectively provided with warning device.
A kind of intelligent control method of fuel battery engines, including the control of scavenging Row control, Booting sequence, workflow
Process control, shutdown process control；Firstly, fuel battery engines controller judges whether fuel battery engines are in shutdown shape
Otherwise state, according to the fuel cell operation status information received, judges to execute scavenging stream if so, executing shutdown process
Journey, Booting sequence or workflow.
The scavenging Row control includes the following steps:
Step 1 opens tail gas solenoid valve；
Step 2 opens nitrogen magnetic valve, and starts timer；
Step 3 judges whether to reach the preset time, if reaching the preset time, executes step 4, no
Then, step 3 is continued to execute；
Step 4 successively closes nitrogen magnetic valve, tail gas solenoid valve, and the mark position 1 that scavenging is finished, scavenging process
Terminate.
The Booting sequence control includes the following steps:
Step a, it is flushed with hydrogen gas to gas circuit, opens simultaneously blower and conveys air into gas circuit, gas circuit will be filled in scavenging process
In nitrogen discharge；
Step b, judge whether fuel battery engines meet condition of power supply, if it is satisfied, executing step c, otherwise, continue
Execute step a；
Step c, load switch is closed, charge switch is disconnected, is delayed after the scheduled time, judges fuel battery engines electricity
Whether the voltage of source inventer and the voltage at pile both ends are equal, if equal, execute step d and otherwise continue to judge；
Step d, charge switch is closed, Booting sequence is completed.
The WorkFlow Managerment includes the following steps:
Step A, start preset tail gas electromagnetic valve switch timer；
Step B, judge whether timer time reaches, if so, opening tail gas solenoid valve, be delayed after the scheduled time,
Close tail gas solenoid valve；
Step C, the real-time humidity of fuel battery proton exchange film is judged, if the real-time humidity of proton exchange membrane is less than wet
Lower limit value is spent, humidification nozzle is opened；If the real-time humidity of proton exchange membrane is greater than top limit value of humidity, humidification nozzle is closed；
Step D, judge the output power of fuel cell pile, and according to required output power and the output power with
The respective value of hydrogen tail discharge electromagnetic valve work parameter controls hydrogen tail discharge solenoid valve.
Compared with prior art, the utility model has the following beneficial effects:
1, fuel battery engines intelligent control platform rich hardware resource, functional safety, electromagnetic compatibility, Safety Redundancy
It is good, it is easy to carry out Function Extension.
2, software and hardware versatility is good, resourceful, control framework scalability is good, can join vehicle with intelligent network and carry out data
Interaction.
Detailed description of the invention
Fig. 1 is a kind of fuel battery engines intelligent control platform architecture principle schematic diagram.
Fig. 2 is that a kind of fuel cell pile determines working condition flow chart.
Fig. 3 is a kind of fuel cell pile scavenging flow chart.
Fig. 4 is a kind of fuel cell pile work flow diagram.
Specific embodiment
The structure of the utility model and the course of work are described further with reference to the accompanying drawing.
A kind of fuel battery engines intelligent control platform, including fuel cell pile, pile device for monitoring running, pile
Running environment control device, controller, host computer, wherein pile device for monitoring running includes temperature monitoring device, water monitoring dress
It sets, hydrogen monitoring device, voltage and current monitoring device, air monitoring device；Pile running environment control device include air pump,
Water pump, air inlet and exhaust valve, gas nozzle；Controller is used to receive the data of pile device for monitoring running acquisition and is handled, and
Control instruction is issued to pile running environment control device, controls the work of fuel cell pile；Controller and pile operation are supervised
It surveys between device, pile running environment control device and is communicated by CAN bus, it is logical by serial ports between controller and host computer
Letter.
The controller includes that core single-chip microcontroller, CAN interface filter circuit, digital quantity input expander, digital quantity are defeated
Expanded circuit, A/D converter circuit, current/charge-voltage convertor out；The CAN interface filter circuit CAN with core single-chip microcontroller respectively
Port is connected with fuel battery engines CAN network；The input terminal of digital quantity input expander connects fuel battery engines
Digital sensors, output end connect core single-chip microcontroller digital quantity input terminal；The input terminal of digital output expanded circuit
The digital output end of core single-chip microcontroller is connected, output end connects the inductive load of fuel battery engines；A/D converter circuit
Input terminal connects the analog sensor of fuel battery engines, and output end connects the analog input end of core single-chip microcontroller；Electricity
The analog output end of the input terminal connection core single-chip microcontroller of piezo-electric stream conversion circuit, output end connect fuel battery engines
DC/DC and frequency converter；Digital quantity input expander, digital output expanded circuit, CAN interface filter circuit and core list
Photoelectric isolating circuit is all had between piece machine.
Specific embodiment, as shown in Figure 1:
Fuel battery engines intelligent control platform, including microcontroller/main control chip, analog input, switching value are defeated
Enter, Phototube Coupling protection, electronic throttle controller, oxygen sensor controller, water-cooling fan, gas nozzle controller,
Power management network, water pump control, air pump control, crystal oscillator, DC-DC, VCU communication, serial communication interface, analog output,
Output switch parameter, high-speed CAN bus interface, optoelectronic isolation protective circuit, information-storing device etc..
Wherein analog input, On-off signal, Phototube Coupling protection, electronic throttle controller, lambda sensor control
Device, water-cooling fan, gas nozzle controller, power management network, water pump control, air pump control, crystal oscillator, DC-DC,
VCU communication, serial communication interface, analog output, output switch parameter, high-speed CAN bus interface, optoelectronic isolation protective circuit,
Information-storing device etc. connect or is communicated with main control chip；Gas nozzle controller, water pump and air pump while and power management
Network connection；Electronic throttle controller is communicated with water-cooling fan governor simultaneously；On-off signal, output switch parameter,
Analog input/output has optoelectronic isolation protective circuit, improves electromagnetic compatibility and electrical safety.
The fuel battery engines controller meets ISO26262 international automobile safety standard, referring to AUTOSAR software frame
Structure, it can be ensured that fuel cell is safely and steadily run, 32, the message transmission rate of highest 80MHz, be greatly improved in
Portion's data exchange capability convenient for discovery in time and solves the problems, such as.
The fuel battery engines controller hardware is resourceful, preliminary that 3 tunnel low-pass filtering On-off signals, 8 tunnels are arranged
The input of low-pass filtering voltage analog, the input of 8 tunnel low-pass filtering resistive mode analog quantity, 6 road PWM output, 13 road small power switches are defeated
Out, the output of 4 road high power switch, the output of 4 road power supplys, the 3 channel C AN communication resources, 9V-32V wide operating voltage are conducive to the control
Device processed establishes low-power consumption, efficient general-purpose platform, is also beneficial to the extension of controller's intellectualization function.
The digital sensors of fuel battery engines include each Boolean value output sensor, mainly include liquid level sensor, mould
Analog quantity sensor includes each voltage signal sensor, current signal sensor, mainly includes lambda sensor, density of hydrogen sensing
Device, fuel battery temperature sensor；Analog sensor detects that analog quantity information is converted to digital quantity by A/D converter circuit
It is transmitted to core single-chip microcontroller；Core single-chip microcontroller handles the acquisition signal received, and is issued and controlled according to processing result
Instruction and communication instruction.
It is miscellaneous under all kinds of electromagnetic interferences in analog signal to eliminate in Design Method for FCE Control System
Wave designs corresponding hardware according to signal type and is filtered with software scenario, goes interference main logical digital signal
Optocoupler is crossed to be isolated.
Each part of fuel cell pile is respectively provided with warning device.
This programme further relates to a kind of intelligent control method of fuel battery engines, including scavenging Row control, starting stream
Process control, WorkFlow Managerment, shutdown process control；Firstly, fuel battery engines controller judges fuel battery engines
Whether it is in off-mode, otherwise according to the fuel cell operation status information received, sentenced if so, executing shutdown process
It is disconnected to execute scavenging process, Booting sequence or workflow.
The scavenging Row control includes the following steps:
Step 1 opens tail gas solenoid valve；
Step 2 opens nitrogen magnetic valve, and starts timer；
Step 3 judges whether to reach the preset time, if reaching the preset time, executes step 4, no
Then, step 3 is continued to execute；
Step 4 successively closes nitrogen magnetic valve, tail gas solenoid valve, and the mark position 1 that scavenging is finished, scavenging process
Terminate.
The Booting sequence control includes the following steps:
Step a, it is flushed with hydrogen gas to gas circuit, opens simultaneously blower and conveys air into gas circuit, gas circuit will be filled in scavenging process
In nitrogen discharge；
Step b, judge whether fuel battery engines meet condition of power supply, if it is satisfied, executing step c, otherwise, continue
Execute step a；
Step c, load switch is closed, charge switch is disconnected, is delayed after the scheduled time, judges fuel battery engines electricity
Whether the voltage of source inventer and the voltage at pile both ends are equal, if equal, execute step d and otherwise continue to judge；
Step d, charge switch is closed, Booting sequence is completed.
The WorkFlow Managerment includes the following steps:
Step A, start preset tail gas electromagnetic valve switch timer；
Step B, judge whether timer time reaches, if so, opening tail gas solenoid valve, be delayed after the scheduled time,
Close tail gas solenoid valve；
Step C, the real-time humidity of fuel battery proton exchange film is judged, if the real-time humidity of proton exchange membrane is less than wet
Lower limit value is spent, humidification nozzle is opened；If the real-time humidity of proton exchange membrane is greater than top limit value of humidity, humidification nozzle is closed；
Step D, judge the output power of fuel cell pile, and according to required output power and the output power with
The respective value of hydrogen tail discharge electromagnetic valve work parameter controls hydrogen tail discharge solenoid valve.
The output power of fuel cell pile includes to hydrogen tail discharge solenoid valve to the control of hydrogen tail discharge solenoid valve
The control at opening time interval and the control of opening time length；The output power of fuel cell is opened with hydrogen tail discharge solenoid valve
The corresponding relationship for opening time interval and opening time length can will be tested by testing acquisition data in advance, and in software development
Corresponding relationship preset in advance complete.
The working principle and the course of work of each module of the intelligent control platform are as follows:
Fuel battery engines controller accesses power management network by microprocessor/main control chip, connect 12V (or
24V) after power supply and internal electric source enable signal, internal electric source output module is provided required for the work of controller internal component
Voltage, subsequent controller are started to work, and controller input module collects all parts by analog input and On-off signal
Working condition and demand information, these information are then sent to control by internal CAN communication agreement in the form of message
Device main control chip processed, after microprocessor/main control chip receives these information, internal control operation program judges by calculating,
Then control instruction is assigned.
Hydrogen, oxygen concentration/pressure control procedure are as follows:
The air fuel ratio signal that microprocessor/main control chip is fed back according to lambda sensor assigns control to gas nozzle controller
System instruction, controls the straying quatity of combustion gas；
When temperature sensor detects the operating temperature of lambda sensor higher than its preset threshold or lower than its preset threshold,
Microprocessor/main control chip control oxygen sensor heater heating amount, makes lambda sensor be in more satisfactory working condition always.
When oxygen concentration deficiency inside fuel cell system, a low-voltage signal, microprocessor/master control will be generated
Chip assigns control instruction after receiving the low-voltage signal, controls the work of air pump, controls oxygen concentration in predetermined range.
Microprocessor/main control chip judges the hydrogen of fuel battery inside according to the concentration signal of hydrogen gas concentration sensor
The size of concentration assigns control instruction, controls the folding of air inlet and exhaust valve, guarantee fuel battery inside hydrogen and oxygen concentration with
Pressure is in OK range.
Temperature of fuel cell control process is as follows:
Microprocessor/main control chip obtains the operating temperature of fuel cell, then according to the detection signal of temperature sensor
The working condition of control water pump is gone, and then operation of fuel cells is controlled in comparatively ideal temperature by heat exchange action.
The voltage control process of fuel cell output is as follows:
Microprocessor/main control chip receives the DC-DC control instruction information of system CAN bus transfer, and by the information
It is sent to DC-DC, DC-DC exports suitable voltage to electric machine controller according to these instructions.
Fuel battery engines controller and PERCOM peripheral communication: microprocessor/main control chip is by CAN communication agreement or serially
Communication interface and VCU (entire car controller), host computer or other intelligent networks join information exchange.
Claims (4)
1. a kind of fuel battery engines intelligent control platform, it is characterised in that: including fuel cell pile, pile operational monitoring
Device, pile running environment control device, controller, host computer, wherein pile device for monitoring running includes temperature monitoring dress
It sets, water monitoring device, hydrogen monitoring device, voltage and current monitoring device, air monitoring device；Pile running environment control device
Including air pump, water pump, air inlet and exhaust valve, gas nozzle；Controller is used to receive the data of pile device for monitoring running acquisition simultaneously
It is handled, and issues control instruction to pile running environment control device, control the work of fuel cell pile；Controller with
It is communicated between pile device for monitoring running, pile running environment control device by CAN bus, is led between controller and host computer
Cross serial communication.
2. fuel battery engines intelligent control platform according to claim 1, it is characterised in that: the controller includes
Core single-chip microcontroller, CAN interface filter circuit, digital quantity input expander, digital output expanded circuit, A/D converter circuit,
Current/charge-voltage convertor；CAN interface filter circuit respectively with the CAN port of core single-chip microcontroller and fuel battery engines CAN
Network connection；The digital sensors of the input terminal connection fuel battery engines of digital quantity input expander, output end connect
Connect the digital quantity input terminal of core single-chip microcontroller；The digital quantity of the input terminal connection core single-chip microcontroller of digital output expanded circuit is defeated
Outlet, output end connect the inductive load of fuel battery engines；The input terminal of A/D converter circuit connects fuel battery engines
Analog sensor, output end connect core single-chip microcontroller analog input end；The input terminal of current/charge-voltage convertor connects
The analog output end of core single-chip microcontroller is connect, output end connects the DC/DC and frequency converter of fuel battery engines；Digital quantity input
Phototube Coupling electricity is all had between expanded circuit, digital output expanded circuit, CAN interface filter circuit and core single-chip microcontroller
Road.
3. fuel battery engines intelligent control platform according to claim 2, it is characterised in that: fuel battery engines
Digital sensors include each Boolean value output sensor, analog sensor includes that each voltage signal sensor, current signal pass
Sensor；Analog sensor detects that analog quantity information is converted to digital quantity by A/D converter circuit and is transmitted to core single-chip microcontroller；
Core single-chip microcontroller handles the acquisition signal received, and issues control instruction and communication instruction according to processing result.
4. fuel battery engines intelligent control platform according to claim 1, it is characterised in that: fuel cell pile
Each part is respectively provided with warning device.
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| CN109950579A (en) * | 2019-03-19 | 2019-06-28 | 上海汉翱新能源科技有限公司 | A kind of fuel battery engines intelligent control platform and its control method |
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