CN107878235A - A kind of vehicle fuel battery dynamical system - Google Patents
A kind of vehicle fuel battery dynamical system Download PDFInfo
- Publication number
- CN107878235A CN107878235A CN201711117436.9A CN201711117436A CN107878235A CN 107878235 A CN107878235 A CN 107878235A CN 201711117436 A CN201711117436 A CN 201711117436A CN 107878235 A CN107878235 A CN 107878235A
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- vehicle
- fuel cell
- main drive
- air compressor
- drive motor
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- 239000000446 fuel Substances 0.000 title claims abstract description 96
- 238000005183 dynamical system Methods 0.000 title claims abstract description 24
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 9
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 5
- 230000009194 climbing Effects 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000000930 thermomechanical effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04104—Regulation of differential pressures
-
- 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
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
-
- 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
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell 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
- H01M8/04298—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
- H01M8/04746—Pressure; Flow
- H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries 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
- Y02E60/10—Energy storage using 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
- 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
Abstract
The present invention provides a kind of vehicle fuel battery dynamical system, including：Fuel cell pack, hydrogen supply system, air supply system, DC/DC converters, power battery pack, main drive motor system.The present invention combines electric air compressor and motor and vehicle driving-cycle feature, by the way that electric air compressor motor is merged into use with main drive motor, save the motor and electric machine controller of electric air compressor, energy is provided for air compressor using main drive motor system in fuel cell stack operation, fuel cell pack is and the air for meeting duty requirements is provided.Aided in by power battery pack, the preheating for making to carry out fuel cell pack while vehicle launch prepares.Simplify fuel cell power system structure and control, reduce system and take volume and weight, without waiting for further reducing system energy consumption during vehicle launch.
Description
Technical field
The invention belongs to fuel cell field, more particularly to a kind of vehicle fuel battery dynamical system and its new energy of application
Source electric car.
Background technology
Between oxygen of the fuel cell pack using the hydrogen being stored in gas cylinder and from air occur electrochemical reaction come
Electric energy is produced, power resources are provided for electrical equipment.
Common, fuel cell power system needs to match electric air compressor, electric air pressure according to watt level
Contracting machine includes compressor assembly, motor and electric machine controller., it is necessary to external vehicle-mounted low pressure 12/ when electric air compressor starts
24V power supplys, which provide, starts energy, while needs to make low-tension supply be converted into high electricity needed for electric air compressor electric machine controller
The DC-DC converter of pressure.After waiting for a period of time, fuel cell pack can be only achieved normal working voltage, and vehicle could be opened normally
It is dynamic.In vehicle travel process, the regulation of amount of supplied air needs electric machine controller to be controlled motor, and algorithm is complex,
Dynamic response is slow.
In summary, current fuel cell power system, the electric air compressor component count of its air supply system
Amount is excessive；When being applied on vehicle, it is long to there is the complicated and startup stand-by period.
The content of the invention
It is an object of the invention to provide a kind of vehicle fuel battery dynamical system, is avoided that fuel cell moves in the prior art
The electric air compressor number of components of Force system is excessive；Secondly when being applied on vehicle, effectively solve complicated and start
The problem of stand-by period is long.
The purpose of the present invention is achieved by following technical proposals.
1st, first purpose of the invention is to provide a kind of vehicle fuel battery dynamical system, including：Fuel cell pack, hydrogen
Gas supply system, air supply system, DC/DC converters, power battery pack, main drive motor system, it is characterised in that：It is described
Air supply system, including air compressor assembly；The main drive motor system, including main drive motor and motor control
Device, wherein main drive motor are motor for double-ended drive, and one end is connected with vehicle driveline, other end connection air compressor
Component, main drive motor provide power for vehicle driveline and air compressor assembly.
Clutch is provided between the motor for double-ended drive and air compressor assembly.
The air compressor assembly includes compressor and speed increaser, and described air supply system also includes filtering and eliminated the noise
Device and humidifier.
Clutch is provided between the motor for double-ended drive and vehicle driveline, the clutch is electromagnetic clutch
Device or executing agency are the pneumatic, mechanical clutch of hydraulic pressure.
Gearbox is provided between the clutch and vehicle driveline.
The gearbox has reverse gear.
Clutch is provided between the motor for double-ended drive and vehicle driveline.
The clutch is electromagnetic clutch or executing agency is the pneumatic, mechanical clutch of hydraulic pressure.
Second object of the present invention is to provide a kind of New-energy electric vehicle, it is characterised in that：The vehicle fuel electricity
Pond dynamical system is vehicle fuel battery dynamical system described above, and vehicle use cold start-up mode in starting, using moving
Power battery pack provides energy for vehicle and vehicle is started, and now vehicle main drive motor starts to rotate, and drives air compression
Thermomechanical components are worked, and pressure-air is provided for fuel cell pack.Fuel cell stack voltage is set to be stepped up to system operating voltage.
Vehicle is in acceleration or climbing, according to the aperture of vehicle accelerator pedal, fuel cell pack or power battery pack or combustion
Material battery pile provides energy source for vehicle jointly with power battery pack.When the magnitude of voltage of power battery pack is less than the voltage set
During value, power battery pack is stopped.In vehicle acceleration, main drive motor rotating speed is increasing, and air compressor turns
Speed increases therewith, and the air capacity and air pressure provided for fuel cell pack increases also with dynamic.
Vehicle is when at the uniform velocity travelling, main drive motor invariablenes turning speed, drives air compressor assembly to be carried for fuel cell pack
For steady pressure and the air of tolerance.Meanwhile as needed, fuel cell pack is charged by DC/DC to power battery pack.
When vehicle is braked, main drive motor rotating speed gradually reduces, and fuel cell pack stops supply hydrogen, air compressor production
Raw pressure-air purges to internal system, and feedback energy caused by braking charges to power battery pack, works as electrokinetic cell
When the magnitude of voltage of group is higher than the magnitude of voltage set, power battery pack stops charging.Fuel cell pack stops supply hydrogen, vehicle machine
Tool is braked.
During vehicle backing, clutch between air compressor assembly and main drive motor disconnects, fuel cell pack not work
Make, being individually for vehicle by power battery pack provides energy source.
During vehicle backing, the gearbox-gear set between clutch and vehicle driveline is placed in reverse gear, main drive
Dynamic motor direction of rotation is constant, and air compressor normal work, fuel cell pack provides energy source for vehicle backing.
The present invention compared with prior art, has the effect that：
A kind of vehicle fuel battery dynamical system provided by the invention, for current fuel cell power system, it is empty
The electric air compressor number of components of gas supply system is excessive；When being applied on vehicle, start the drawbacks such as the stand-by period is long,
A kind of vehicle fuel battery dynamical system is invented, electric air compressor motor is merged into use with main drive motor, saved
The motor and electric machine controller of electric air compressor, using main drive motor system it is air pressure in fuel cell stack operation
Contracting machine provides energy, is fuel cell pack and provides the air for meeting duty requirements, is aided in by power battery pack, make vehicle
The preheating for carrying out fuel cell pack while startup prepares.Simplify fuel cell power system, reduce system and take volume
And weight, using during vehicle launch without waiting for further reducing system energy consumption.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation of vehicle fuel battery dynamical system provided by the invention；
Fig. 2 is the fundamental diagram of the New-energy electric vehicle of the embodiment of the present invention one；
Fig. 3 is for the control principle block diagram of the New-energy electric vehicle of the embodiment of the present invention one
Fig. 4 is the fundamental diagram of the New-energy electric vehicle of the embodiment of the present invention two；
Fig. 5 is the fundamental diagram of the New-energy electric vehicle of the embodiment of the present invention three；
Fig. 6 is the fundamental diagram of the New-energy electric vehicle of the embodiment of the present invention four.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.
It should also be noted that, the orientation term such as left and right, upper and lower in the present embodiment, be only each other relative concept or
Using the normal operating condition of product as reference, and should not be regarded as restrictive.
Embodiment one：
As shown in Figure 1, Figure 2, Figure 3 shows, vehicle fuel battery dynamical system of the invention, including：Fuel cell pack, hydrogen supply
Answer system, air supply system, DC/DC converters, power battery pack, main drive motor system, described air supply system,
Including air compressor assembly, filter and sound damper and humidifier, the main drive motor system, including main drive motor and motor
Controller, wherein main drive motor are motor for double-ended drive, and one end is connected with vehicle driveline, other end connection air pressure
Contracting thermomechanical components, main drive motor provide energy for vehicle driveline and air compressor assembly.
Clutch is provided between the motor for double-ended drive and air compressor assembly.
The air compressor assembly includes compressor and speed increaser.
The clutch is electromagnetic clutch or executing agency is the pneumatic, mechanical clutch of hydraulic pressure.
Vehicle driveline mainly includes master and subtracts/differential mechanism；Main drive motor one end is directly and vehicle drive-train
System is connected.
As shown in Fig. 2 the present embodiment provides a kind of New-energy electric vehicle, including vehicle fuel battery dynamical system
With Full Vehicle System controller, vehicle fuel battery dynamical system includes fuel cell pack, hydrogen supply system, air supply system
System, DC/DC converters, power battery pack, main drive motor system, described air supply system, including air compressor unit
Part, the main drive motor system include main drive motor and electric machine controller, and motor controller controls main drive motor is run,
Wherein main drive motor is motor for double-ended drive, and one end is connected with vehicle driveline, other end connection air compressor unit
Part, main drive motor provide power for vehicle driveline and air compressor assembly.The motor for double-ended drive and air
Clutch is provided between compressor assembly.The air compressor assembly includes compressor, speed increaser, described air supply
System also includes filter and sound damper and humidifier.Described vehicle driveline is that master subtracts/differential mechanism.The clutch is
Electromagnetic clutch or executing agency are the pneumatic, mechanical clutch of hydraulic pressure.
As shown in figure 3, whole vehicle control system respectively with battery management system BMS, electric machine controller, fuel cell pack
Communication is connected with each other, hydrogen supply system, air supply system are controlled work by whole vehicle control system, fuel cell pack
Feeder ear is connected to the input of DC/DC converters by switching K1, and the output end of DC/DC converters is divided into 2 tunnels, connected all the way
Powered after switching K2 to electric machine controller；Then another way connecting valve K4 gives power battery pack to power, power battery pack
The output of 12V/24V low-tension supplies provides low pressure input for whole vehicle control system and battery management system BMS；Power battery pack
High-voltage output end connecting valve K3 after give electric machine controller power supply；Wherein switch K1, switch K2, switch K3, switch K4 be after
Electric switch, switch K1, switch K2, switch K3, switch K4 are closed or disconnected, vehicle by the control of whole vehicle control system
Whole-control system is the control system with microprocessor, to carry out digital operation processing and full-vehicle control.Clutch by
Whole vehicle control system controls.
Vehicle uses cold start-up mode in starting, and detailed process is：During Vehicle power ON, the 12V/ of power battery pack
The output of 24V low-tension supplies provides low pressure input, battery management system for whole vehicle control system and battery management system BMS
The flow of the charging and discharging of BMS control power battery packs；When throttle signal provides, switch K1, switch K2, switch K4 are in disconnected
Open state, switch K3 are in closure state, and power battery pack provides energy for vehicle and vehicle is started, the now main drive of vehicle
Dynamic motor starts to rotate, the electromagnetic clutch adhesive between air compressor assembly and main drive motor, the electromagnetic clutch with
Main drive motor becomes one, and drives air compressor assembly rotary work, by by being carried after filtering the air eliminated the noise compression
Supply fuel cell pack.Hydrogen supply system provides hydrogen to fuel cell pack, fuel battery voltage is stepped up to system
Required normal working voltage.
Vehicle is in acceleration or climbing, and according to the aperture of vehicle accelerator pedal, switch K4 is off, switch K1,
Switch K2, switch K3 are in closure state, and fuel cell pack heap provides energy source for vehicle jointly with power battery pack；Switch
K3, switch K4 are off, and switch K1, K2 are in closure state, and fuel cell pack heap is individually for vehicle and provides energy
Source；When the magnitude of voltage of the high-voltage output end of power battery pack is less than the magnitude of voltage of setting, switch K3 is disconnected, and power battery pack is stopped
Only export.In vehicle acceleration, main drive motor rotating speed is increasing, and the rotating speed of air compressor increases therewith, is fuel
The air capacity and air pressure that battery pile heap provides increase also with dynamic, and the supply of the raising hydrogen of response can meet whole
Car power demand.
When at the uniform velocity travelling, switch K3 disconnects vehicle, and switch K1, switch K2 are in closure state, main drive motor rotating speed
It is constant, drive air compressor assembly to provide steady pressure and the air of tolerance for fuel cell pack heap.Meanwhile as needed,
K4 closure states are switched, fuel cell pack is charged by DC/DC to power battery pack.
When vehicle is braked, switch K1, switch K3 are off, and switch K2, switch K4 are in closure state, main driving
Motor speed gradually reduces, and fuel cell pack stops supply hydrogen, and pressure-air caused by air compressor enters to internal system
Row purging, feedback energy caused by braking charge to power battery pack, when the magnitude of voltage of power battery pack is higher than the voltage set
During value, power battery pack stops charging.Fuel cell pack stops supply hydrogen, vehicle mechanical braking.
During vehicle backing, switch K1, switch K2, switch K4 are off, and switch K3 is in closure state, air pressure
Electromagnetic clutch between contracting thermomechanical components and main drive motor disconnects, and fuel cell pack does not work, is individually for by power battery pack
Vehicle provides energy source.
Embodiment two：
As shown in figure 4, the structure of the present embodiment is substantially identical with embodiment one, distinctive points are：Vehicle drive-train
System mainly includes master and subtracts/differential mechanism；Gearbox is set between main drive motor and vehicle driveline.The gearbox
With reverse gear.Main drive motor is joined directly together with air compressor assembly, cancels main drive motor and air compressor unit
Clutch between part.
Vehicle uses cold start-up mode in starting, and detailed process is：During Vehicle power ON, the 12V/ of power battery pack
The output of 24V low-tension supplies provides low pressure input, battery management system for whole vehicle control system and battery management system BMS
The flow of the charging and discharging of BMS control power battery packs；When throttle signal provides, switch K1, switch K2, switch K4 are in disconnected
Open state, switch K3 are in closure state, and power battery pack provides energy for vehicle and vehicle is started, the now main drive of vehicle
Dynamic motor starts to rotate, the electromagnetic clutch adhesive between air compressor assembly and main drive motor, the electromagnetic clutch with
Main drive motor becomes one, and drives air compressor assembly rotary work, by by being carried after filtering the air eliminated the noise compression
Supply fuel cell pack.Hydrogen supply system provides hydrogen to fuel cell pack, fuel battery voltage is stepped up to system
Required normal working voltage.
Vehicle accelerate or climb, at the uniform velocity, braking etc. under operating mode detailed process it is identical with embodiment one.
During vehicle backing, gearbox is linked into reverse gear, and switch K2 is off, and switch K1, switch K3, switch K4 are in
Closure state, the electromagnetic clutch between air compressor assembly and main drive motor disconnect, and fuel cell pack does not work, by moving
Power battery pack is individually for vehicle and provides energy source.Reversing speed is when exceeding setting value, fuel cell pack or power battery pack or
Fuel cell pack provides energy source for vehicle jointly with power battery pack.When the magnitude of voltage of power battery pack is less than the electricity set
During pressure value, power battery pack is stopped.
Embodiment three
As shown in figure 5, the structure of the present embodiment is substantially identical with embodiment one, distinctive points are：Vehicle drive-train
System mainly includes master and subtracts/differential mechanism；Electromagnetic clutch is set between main drive motor and vehicle driveline.
The present embodiment is similar with one each operating mode of embodiment, difference be main drive motor and it is main subtract/differential mechanism between set
There is clutch, when the clutch disconnects, vehicle thermal starting can be made.That is, the hot car of vehicle or during idling, switch K2, which is in, disconnects shape
State, switch K1, switch K3, switch K4 are in closure state, supply energy to main drive motor by power battery pack, drive air
Compressor assembly rotates, and fuel cell stack voltage is stepped up to operating voltage needed for system.When fuel cell stack voltage reaches
To power battery pack charging voltage setting value when, fuel cell pack by DC/DC give power battery pack charge.
Example IV：
As shown in fig. 6, the structure of the present embodiment is substantially identical with embodiment two, distinctive points are：Vehicle drive-train
System mainly includes master and subtracts/differential mechanism；Electromagnetic clutch and speed change are set between main drive motor and vehicle driveline
Case.Main drive motor is joined directly together with air compressor assembly, cancel between main drive motor and air compressor assembly from
Clutch.
Example IV is similar with two each operating mode of embodiment, difference be main drive motor and it is main subtract/differential mechanism between set
There is clutch, when the clutch disconnects, vehicle thermal starting can be made.That is, the hot car of vehicle or during idling, switch K2, which is in, disconnects shape
State, switch K1, switch K3, switch K4 are in closure state, supply energy to main drive motor by power battery pack, drive air
Compressor assembly rotates, and fuel battery voltage is stepped up to operating voltage needed for system.When fuel battery voltage reaches dynamic
During the charging voltage setting value of power battery pack, fuel cell pack is charged by DC/DC to power battery pack.
During vehicle backing, gearbox is linked into reverse gear, and switch K2 is off, and switch K1, switch K3, switch K4 are in
Closure state, the electromagnetic clutch between air compressor assembly and main drive motor disconnect, and fuel cell pack does not work, by moving
Power battery pack is individually for vehicle and provides energy source.Reversing speed is when exceeding setting value, fuel cell pack or power battery pack or
Fuel cell pack provides energy source for vehicle jointly with power battery pack.When the magnitude of voltage of power battery pack is less than the electricity set
During pressure value, power battery pack is stopped.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Any modification, equivalent substitution or improvement for being made within principle etc., should be included in the scope of the protection.
Claims (15)
1. a kind of vehicle fuel battery dynamical system, including：Fuel cell pack, hydrogen supply system, air supply system, DC/
DC converters, power battery pack, main drive motor system, it is characterised in that：
Described air supply system, including air compressor assembly；
The main drive motor system, including main drive motor and electric machine controller, wherein main drive motor are motor for double-ended drive,
One end is connected with vehicle driveline, and other end connection air compressor assembly, main drive motor is vehicle drive-train
System and air compressor assembly provide power.
A kind of 2. vehicle fuel battery dynamical system as claimed in claim 1, it is characterised in that：The motor for double-ended drive and sky
Clutch is provided between air compressor component.
A kind of 3. vehicle fuel battery dynamical system as claimed in claim 1, it is characterised in that：The air compressor assembly
Comprising compressor, speed increaser, described air supply system also includes filter and sound damper and humidifier.
A kind of 4. vehicle fuel battery dynamical system as claimed in claim 2, it is characterised in that：The clutch moves with vehicle
Gearbox is provided between power transmission system.
A kind of 5. vehicle fuel battery dynamical system as claimed in claim 4, it is characterised in that：The gearbox has reverse gear
Gear.
A kind of 6. vehicle fuel battery dynamical system as claimed in claim 1, it is characterised in that：The motor for double-ended drive and car
Clutch is provided between power drive system.
A kind of 7. vehicle fuel battery dynamical system as described in claim 2 and 6, it is characterised in that：Institute's clutch is
Electromagnetic clutch or executing agency are the pneumatic, mechanical clutch of hydraulic pressure.
8. a kind of New-energy electric vehicle, including vehicle fuel battery dynamical system, it is characterised in that：The vehicle fuel battery
Dynamical system is the vehicle fuel battery dynamical system described in claim 1-5.
A kind of 9. New-energy electric vehicle as claimed in claim 8, it is characterised in that：Vehicle uses cold start-up side in starting
Formula, provide energy for vehicle using power battery pack and vehicle is started, now vehicle main drive motor starts to rotate, and drives
Air compressor assembly works, and provides pressure-air for fuel cell pack, fuel cell stack voltage is stepped up to system work
Make voltage.
A kind of 10. New-energy electric vehicle as claimed in claim 8, it is characterised in that：Vehicle in acceleration or climbing, according to
The aperture of vehicle accelerator pedal, fuel cell pack or power battery pack or fuel cell pack carry for vehicle jointly with power battery pack
Energy supply amount source, when the magnitude of voltage of power battery pack is less than the magnitude of voltage set, power battery pack is stopped, and vehicle accelerates
During, main drive motor rotating speed is increasing, and the rotating speed of air compressor increases therewith, the air provided for fuel cell pack
Amount and air pressure increase also with dynamic.
A kind of 11. New-energy electric vehicle as claimed in claim 8, it is characterised in that：Vehicle is when at the uniform velocity travelling, main driving
Motor speed is constant, drives air compressor assembly to provide steady pressure and the air of tolerance for fuel cell pack.Meanwhile according to
Need, fuel cell pack charges by DC/DC converters, to power battery pack.
A kind of 12. New-energy electric vehicle as claimed in claim 8, it is characterised in that：When vehicle is braked, main drive motor turns
Speed gradually reduces, and fuel cell pack stops supply hydrogen, and pressure-air caused by air compressor purges to internal system,
Feedback energy caused by braking charges to power battery pack, when the magnitude of voltage of power battery pack is higher than the magnitude of voltage set, moves
Power battery pack stops charging, and fuel cell pack stops supply hydrogen, vehicle mechanical braking.
A kind of 13. New-energy electric vehicle as claimed in claim 8, it is characterised in that：In air compressor assembly and main drive
There is clutch between dynamic motor, during vehicle backing, the clutch between air compressor assembly and main drive motor disconnects, fuel
Battery pile does not work, and being individually for vehicle by power battery pack provides energy source.
A kind of 14. New-energy electric vehicle as claimed in claim 8, it is characterised in that：In main drive motor and gearbox or
It is main subtract/differential mechanism between have a clutch, during vehicle launch, main drive motor and gearbox or it is main subtract/differential mechanism between clutch
Device is off, main drive motor rotating band engine-driven air compressor component operation, fuel cell stack voltage gradually rise to
System operating voltage.
A kind of 15. New-energy electric vehicle as claimed in claim 8, it is characterised in that：Clutch and power transmission system of vehicle
It is provided with gearbox between system, during vehicle backing, gearbox-gear is placed in reverse gear, and main drive motor direction of rotation is constant, air
Compressor tick-over, energy source is provided for vehicle by power battery pack, fuel cell pack by DC/DC converters, to dynamic
Power battery pack charges；When reversing speed exceedes setting value, fuel cell pack or power battery pack or fuel cell pack and power electric
Pond group provides energy source for vehicle jointly, when the magnitude of voltage of power battery pack is less than the magnitude of voltage set, power battery pack
It is stopped.
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