CN107089148B - The energy distributing method of fuel cell hybrid system with elastic energy storage mechanism - Google Patents
The energy distributing method of fuel cell hybrid system with elastic energy storage mechanism Download PDFInfo
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- CN107089148B CN107089148B CN201710274527.7A CN201710274527A CN107089148B CN 107089148 B CN107089148 B CN 107089148B CN 201710274527 A CN201710274527 A CN 201710274527A CN 107089148 B CN107089148 B CN 107089148B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 130
- 239000000446 fuel Substances 0.000 title claims abstract description 92
- 230000007246 mechanism Effects 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 28
- 235000014676 Phragmites communis Nutrition 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 claims description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000005183 dynamical system Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012885 constant function Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000003780 insertion Methods 0.000 description 1
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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
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/30—Electric propulsion with power supplied within the vehicle using propulsion power stored mechanically, e.g. in fly-wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The energy distributing method of fuel cell hybrid system with elastic energy storage mechanism, belongs to hybrid vehicle technology field.Solve the problems, such as that existing fuel cell hybrid system battery capacity fade problem as caused by frequent charge and discharge and braking energy utilization rate are low.The present invention effectively recycles dynamical system in brake or the braking energy in decelerating phase；In addition, power battery can be made to work in lower frequency region by control to driving stage power distribution using low-pass filter, power battery capacity attenuation degree can be effectively reduced.The present invention is suitable for the energy storage of electric car and energy distributes.
Description
Technical field
The invention belongs to the design of fuel cell car system and control technology fields.
Background technique
Fuel cell hybrid car is considered to have the new-energy automobile dynamical system of broad prospect of application, is passing through
Ji type and discharge aspect have biggish technical advantage.Fuel cell hybrid system is pollution-free with its, controls operation side
Just, the technologies such as safety reliability height have a little obtained extensive concern.
Since the power battery of fuel cell hybrid system is there are capacity fade problem, so that the pure electricity of dynamical system is continuous
It is limited to sail mileage, so that system operation cost gradually increases；In addition, in power system operation in braking or decelerating phase
There are braking energies, and braking energy is only recycled by power battery at present, and when battery remaining power reaches the upper limit, braking energy is needed
It is lost by mechanical device, capacity usage ratio is caused to decline.
Summary of the invention
The present invention is to solve existing fuel cell hybrid system battery appearance as caused by frequent charge and discharge
Attenuation problem and the low problem of braking energy utilization rate are measured, a kind of fuel cell mixing with elastic energy storage mechanism is proposed
The energy distributing method of dynamical system.
The energy distributing method of fuel cell hybrid system of the present invention with elastic energy storage mechanism, is based on
Fuel cell hybrid system with elastic energy storage mechanism realizes that the fuel cell with elastic energy storage mechanism mixes
Dynamical system includes fuel cell system 1, fuel cell controller 2, unidirectional DC/DC converter 3, power battery 4, battery management
System 5, inverter 6, driving motor 7, clutch 8, elastic energy storage mechanism 9, speed changer 10 and full-vehicle control unit 11；
The current signal output end of fuel cell system 1 is connect with the current signal input of unidirectional DC/DC converter 3,
The current output terminal of unidirectional DC/DC converter 3 is connect with the current signal input of inverter 6, and the current signal of inverter 6 is defeated
Enter end to connect with the current signal output end of power battery 4 simultaneously；
The driving signal input of the current signal output end connection driving motor 7 of inverter 6, the output of driving motor 7
The input shaft of axis and speed changer 10 is coaxially connected, and speed changer 10 drives automotive wheel by differential mechanism 12；
The bearing of elastic energy storage mechanism 9 is sequentially connected by clutch 8 and speed changer 10, full-vehicle control unit 11 control from
The closure or openness of clutch 8；The charge and discharge control signal output end connection fuel cell controller 2 of full-vehicle control unit 11 fills
Discharge control signal input terminal, the electricity of the battery status signal input terminal connection fuel cell controller 2 of full-vehicle control unit 11
Pond status signal output；The discharge power control signal output connection fuel cell system 1 of fuel cell controller 2 is put
The fuel cell condition signal input part of electrical power control signal input, fuel cell controller 2 connects fuel cell system 1
Battery status signal output end；
The changeover control signal output of full-vehicle control unit 11 connect unidirectional DC/DC converter 3 with transition status input terminal
Changeover control signal input connect with transition status output end；
The discharge power control of the discharge power control signal output connection battery management system 5 of full-vehicle control unit 11
Signal input part, the power battery of the power battery state signal input terminal connection battery management system 5 of full-vehicle control unit 11
Status signal output；The power output control signal output connection power battery 4 of battery management system 5 exports switch control
The battery status signal input terminal of signal input part, battery management system 5 connects 4 energy state output end of power battery；
The revolving speed of driving motor 7 connects the motor status signal input of full-vehicle control unit 11 with dtc signal output end
End；
The electric current changeover control signal of the inverter changeover control signal output end connection inverter 6 of full-vehicle control unit 11
Input terminal；
The control signal output of stored energy mechanism power output and the stored energy mechanism energy storage state input terminal of full-vehicle control unit 11
Connect output control input and the energy storage state output end of elastic energy storage mechanism 9；
The transmission state of full-vehicle control unit 11, which is inputted, connect speed changer 10 with variator power control signal output
Status signal output and power control signal input；
Full-vehicle control unit 11 and fuel cell controller 2, unidirectional DC/DC converter 3, battery management system 5, inverter
6, it is connected by CAN bus between driving motor 7, elastic energy storage mechanism 9 and speed changer 10；
The specific steps of the energy distributing method of fuel cell hybrid system with elastic energy storage mechanism are as follows:
Step 1: obtaining the energy storage state Q of elastic energy storage mechanism 9 using full-vehicle control unit 11, passing through battery management system
System 5 obtains the remaining capacity of power battery 4, the working condition of fuel cell system 1 is obtained by fuel cell controller 2, is logical
It crosses onboard sensor and obtains speed, gas pedal aperture and brake pedal opening amount signal；Full-vehicle control unit 11 utilizes speed, oil
Door pedal opening and brake pedal opening amount signal calculate automobile dynamic system demand general power Pdem, wherein Q is elastic energy storage machine
The ratio between the real-time energy storage value of structure and maximum energy storage value；
Step 2: calculating the automobile dynamic system demand general power P obtained using step 1dem, in conjunction with power battery 4
The energy storage state of remaining capacity and elastic energy storage mechanism 9, full-vehicle control unit 11 are used based on frequency domain allocation algorithm respectively to combustion
Expect that battery controller 2, battery management system 5 and elastic energy storage mechanism 9 send power output and control signal；
Step 3: fuel cell controller 2 sends control signal to fuel cell system 1, control fuel cell system 1 is defeated
Electric energy out；Battery management system 5 sends output power signal to power battery 4, and power battery 4 exports electric energy；Elasticity storage
It can the reception control signal of mechanism 9 and output power signal；It realizes to the fuel cell hybrid system with elastic energy storage mechanism
The energy hole of system.
Further, full-vehicle control unit described in step 2 11 is using electric to fuel respectively based on frequency domain allocation algorithm
Pool controller 2, battery management system 5 and elastic energy storage mechanism 9 send power output control signal method particularly includes:
Step 2 one judges automobile dynamic system demand general power PdemWhether 0 is greater than, if so, step 2 two is executed,
Otherwise step 2 three is executed；
Step 2 two determines whether power battery remaining capacity is less than the minimum threshold values a of battery capacity, if so, executing
Otherwise step 2 four executes step 2 five；Wherein, a is the 20% of power battery maximum electricity,
Step 2 three determines whether the energy storage state Q of elastic energy storage mechanism 9 is less than or equal to 1, if so, full-vehicle control
Unit 11 controls clutch 8 and is closed, and elastic energy storage mechanism 9 recycles the braking energy of automobile, and otherwise, full-vehicle control unit 11 controls
Clutch 8 separates, and the braking energy of automobile is discharged by mechanical mechanism；
Step 2 four, using low-pass filter to automobile dynamic system demand general power PdemIt is filtered, it is low-pass filtered
The low frequency power signal exported after device is sent to power battery management system 5, and power battery management system 5 controls power battery 4
The power signal equal with low frequency power is exported, automobile dynamic system demand general power P is recycleddemSubtract low-pass filtered device
The low frequency power exported afterwards, obtains the high frequency power signals of automobile dynamic system demand, and full-vehicle control unit 11 controls clutch 8
Closure, control elastic energy storage mechanism 9 export the high frequency power of automobile dynamic system demand；
Step 2 five, full-vehicle control unit 11 control fuel cell system 1 by fuel cell controller 2 and export constant function
Rate is the charging of power battery 4.
Fuel cell hybrid system with elastic energy storage mechanism of the invention, in original fuel cell hybrid
Elastic energy storage mechanism is increased in system-based, control method according to the invention switches over, and can effectively recycle power
System is in brake or the braking energy in decelerating phase；In addition, can be passed through using low-pass filter to driving stage power distribution
Control makes power battery work in lower frequency region, can effectively reduce power battery capacity attenuation degree, realizes that fuel cell is mixed
Close the optimum control of power vehicle.
Detailed description of the invention
Fig. 1 is the principle frame of the present invention based on the fuel cell hybrid system with elastic energy storage mechanism
Figure；
Fig. 2 is the structural schematic diagram of speed change gear；
Fig. 3 is the structural schematic diagram of elastic accumulator；
Fig. 4 is tension sensor mounting structure schematic diagram；
Fig. 5 is the structural schematic diagram of brake；
Fig. 6 is the method for the invention flow chart.
Specific embodiment
Specific embodiment one illustrates present embodiment in conjunction with Fig. 1 and Fig. 6, has elasticity storage described in present embodiment
The energy distributing method of the fuel cell hybrid system of energy mechanism, based on the fuel cell mixing with elastic energy storage mechanism
Dynamical system realize, the fuel cell hybrid system with elastic energy storage mechanism it include fuel cell system 1, fire
Expect battery controller 2, unidirectional DC/DC converter 3, power battery 4, battery management system 5, inverter 6, driving motor 7, clutch
Device 8, elastic energy storage mechanism 9, speed changer 10 and full-vehicle control unit 11；
The current signal output end of fuel cell system 1 is connect with the current signal input of unidirectional DC/DC converter 3,
The current output terminal of unidirectional DC/DC converter 3 is connect with the current signal input of inverter 6, and the current signal of inverter 6 is defeated
Enter end to connect with the current signal output end of power battery 4 simultaneously；
The driving signal input of the current signal output end connection driving motor 7 of inverter 6, the output of driving motor 7
The input shaft of axis and speed changer 10 is coaxially connected, and speed changer 10 drives automotive wheel by differential mechanism 12；
The bearing of elastic energy storage mechanism 9 is sequentially connected by clutch 8 and speed changer 10, full-vehicle control unit 11 control from
The closure or openness of clutch 8；The charge and discharge control signal output end connection fuel cell controller 2 of full-vehicle control unit 11 fills
Discharge control signal input terminal, the electricity of the battery status signal input terminal connection fuel cell controller 2 of full-vehicle control unit 11
Pond status signal output；The discharge power control signal output connection fuel cell system 1 of fuel cell controller 2 is put
The fuel cell condition signal input part of electrical power control signal input, fuel cell controller 2 connects fuel cell system 1
Battery status signal output end；
The changeover control signal output of full-vehicle control unit 11 connect unidirectional DC/DC converter 3 with transition status input terminal
Changeover control signal input connect with transition status output end；
The discharge power control of the discharge power control signal output connection battery management system 5 of full-vehicle control unit 11
Signal input part, the power battery of the power battery state signal input terminal connection battery management system 5 of full-vehicle control unit 11
Status signal output；The power output control signal output connection power battery 4 of battery management system 5 exports switch control
The battery status signal input terminal of signal input part, battery management system 5 connects 4 energy state output end of power battery；
The revolving speed of driving motor 7 connects the motor status signal input of full-vehicle control unit 11 with dtc signal output end
End；
The electric current changeover control signal of the inverter changeover control signal output end connection inverter 6 of full-vehicle control unit 11
Input terminal；
The control signal output of stored energy mechanism power output and the stored energy mechanism energy storage state input terminal of full-vehicle control unit 11
Connect output control input and the energy storage state output end of elastic energy storage mechanism 9；
The transmission state of full-vehicle control unit 11, which is inputted, connect speed changer 10 with variator power control signal output
Status signal output and power control signal input；
Full-vehicle control unit 11 and fuel cell controller 2, unidirectional DC/DC converter 3, battery management system 5, inverter
6, it is connected by CAN bus between driving motor 7, elastic energy storage mechanism 9 and speed changer 10；
The specific steps of the energy distributing method of fuel cell hybrid system with elastic energy storage mechanism are as follows:
Step 1: obtaining the energy storage state Q of elastic energy storage mechanism 9 using full-vehicle control unit 11, passing through battery management system
System 5 obtains the remaining capacity of power battery 4, the working condition of fuel cell system 1 is obtained by fuel cell controller 2, is logical
It crosses onboard sensor and obtains speed, gas pedal aperture and brake pedal opening amount signal；Full-vehicle control unit 11 utilizes speed, oil
Door pedal opening and brake pedal opening amount signal calculate automobile dynamic system demand general power Pdem, wherein Q is elastic energy storage machine
The ratio between the real-time energy storage value of structure and maximum energy storage value；
Step 2: calculating the automobile dynamic system demand general power P obtained using step 1dem, in conjunction with power battery 4
The energy storage state of remaining capacity and elastic energy storage mechanism 9, full-vehicle control unit 11 are used based on frequency domain allocation algorithm respectively to combustion
Expect that battery controller 2, battery management system 5 and elastic energy storage mechanism 9 send power output and control signal；
Step 3: fuel cell controller 2 sends control signal to fuel cell system 1, control fuel cell system 1 is defeated
Electric energy out；Battery management system 5 sends output power signal to power battery 4, and power battery 4 exports electric energy；Elasticity storage
It can the reception control signal of mechanism 9 and output power signal；It realizes to the fuel cell hybrid system with elastic energy storage mechanism
The energy hole of system.
Specific embodiment two, embodiment is described with reference to Fig. 2, and present embodiment is to described in specific embodiment one
The fuel cell hybrid system with elastic energy storage mechanism energy distributing method further explanation, elastic energy storage machine
Structure 9 includes speed change gear and elastic energy storage case；The speed change gear includes No.1 cabinet, No.1 transmission shaft 911, energy storage gear
912,913, No. two transmission shafts 914 of energy gear are released, No.1 switching tube group 916, No.1 electromagnet 917, No.1 permanent magnet 918, are changed
Gear fork 919 and intermediate gear 920；
Energy storage gear 912 and release can gear 913 be socketed in the upper of No.1 transmission shaft 911, and energy storage gear 912 is located at and releases
The upside of energy gear 913, intermediate gear 920 are that there are two gears to constitute for socket on a bearing, and two gears are located at
The upper/lower terminal of the bearing；The side of the gear of energy storage gear 912 and intermediate gear 920 is sequentially connected, intermediate gear
The other side of 920 gears is located in the plug of selector fork 919, and No.1 permanent magnet 918 is fixed on the plug pedestal of selector fork 919
Lower end, No.1 electromagnet 917 is located at the underface of No.1 permanent magnet 918, and the positive-negative power terminals of No.1 electromagnet 917 are logical
No.1 switching tube group 916 is crossed to connect with the positive and negative electrode of automobile batteries；
The lower gear of intermediate gear 920 is connect with No. two transmission shafts 914 by engaged gears；Energy storage gear 912 releases energy tooth
Wheel 913 and intermediate gear 920 are respectively positioned in No.1 cabinet；The top of No.1 transmission shaft 911 passes through No.1 cabinet and No. two clutches
Device 8 is coaxially connected；No. two 914 lower ends of transmission shaft pass through No.1 cabinet and connect with the coaxial bearing of elastic energy storage case.
Specific embodiment three illustrates that present embodiment, present embodiment are to specific embodiment in conjunction with Fig. 3 and Fig. 4
The further explanation of the energy distributing method of fuel cell hybrid system described in one with elastic energy storage mechanism, elasticity
Energy-storage box includes No. three transmission shafts 921, energy storage whorl reed 922,923, No. two cabinets 924 of brake and tension sensor 925；
No. three transmission shafts 921 are located at the middle part of No. two cabinets 924, are horizontally through No. two cabinets 924, energy storage whorl reed 922, system
Dynamic device 923 and tension sensor 925 are arranged in No. two cabinets 924, and energy storage whorl reed 922 and brake 923 are set in three
On number transmission shaft 921, the inner end of energy storage whorl reed 922 is fixedly connected with the side wall of No. three transmission shafts 921, and tension sensor 925 is solid
It is scheduled on the outer end of energy storage whorl reed 922, and energy storage whorl reed 922 and brake 923 do not contact.
Specific embodiment four, embodiment is described with reference to Fig.5, and present embodiment is to described in specific embodiment one
The fuel cell hybrid system with elastic energy storage mechanism energy distributing method further explanation, brake 923
Including fixed spring 9231, brake bars 9232, spring clip 9233, the switching tube of transmission shaft 9235, two of braked wheel 9234, four
Group 9237, No. two permanent magnets, 9238, No. two electromagnet 9239 and No. three cabinets；
Braked wheel 9234 is set on No. four transmission shafts 9235, and 9234 top edge of braked wheel is opened at equal intervals there are four U-typed
Groove, four "U" type grooves are embedded with No. two permanent magnets for being inserted into brake bars 9232, the end of the brake bars 9232
9238, No. two permanent magnets 9238 are connected on No. three intracorporal vertical clapboards of case, the inner left wall of No. three cabinets with
It is equipped with fixed spring 9231 between partition, is equipped with spring clip 9233, the spring clip relatively on the inner wall up and down of No. three cabinets
The right side of partition is arranged in piece 9233, and No. two permanent magnets 9238 are oppositely arranged with No. two electromagnet 9239, No. two electromagnet
9239 are arranged between the inner left wall and partition of No. three cabinets, and the positive-negative power terminals of No. two electromagnet 9239 pass through No. two
Switching tube group 9237 is connect with the positive and negative electrode of automobile batteries, and the right side inner wall and partition of No. three cabinets is arranged in braked wheel 9234
Between.
The present invention realizes mechanical couplings, cooperation energy distribution by torsion coupler using engine and elastic energy storage system
Method, the two can provide energy to vehicle in different combinations.Torsion coupler is engaged by two curved surface bevel gears
It forms, the torque coupling on axially different may be implemented.Elastic energy storage system is even formed by elastic energy storage case, gear-box axle；Institute
It states transmission system and is even formed by speed-changing gear box with differential axle.Elastic energy storage case is by energy storage whorl reed, bearing, brake, pulling force
Sensor and cabinet form；Whirlpool spring one end is connected directly with bearing, and the other end is connected with tension sensor；The rotation of bearing drives
Spring rotation deformation in whirlpool carries out storage energy, and the shape of whirlpool spring restores the rotation with dynamic bearing and carries out energy release；Tension sensor
Incude the energy state of the size reaction energy storage whorl reed of pulling force；Brake is connected with cabinet, and brake plays braking to bearing and makees
With.The speed change gear of elastic energy storage system by cabinet, energy storage gear, release can gear, intermediate gear, magnet, electromagnet form, in
Between gear by it is mobile respectively can with energy storage gear and release can gear engagement be reached for whirlpool spring energy storage and release the purpose of energy；It is intermediate
The movement of gear stirs completion by selector fork；One end fixed magnet of selector fork is completed by the attraction and repulsion of electromagnet
The movement of intermediate gear；Two leads of electromagnet are directly connected with automobile storage battery by two groups of switching tubes, and battery passes through
The on-off of switching tube to electromagnet provide different directions electric current, thus the pole pair magnet for generating different directions carry out attract or
Repel.The brake of elastic energy storage case is opened by braked wheel, electromagnet, magnet, brake bars, fixed spring, spring clip and two groups
It closes pipe to constitute, braked wheel and bearing axis connect, and recessing on braked wheel, play braking action convenient for brake bars insertion；Brake bars
End is embedded in one block of permanent magnet, and the movement of brake bars generates the attraction to permanent magnet by the electric current of electromagnetism Tie Tong different directions
Power or repulsive force are realized that the position of brake bars is determined by fixed spring and spring clip；Two leads of electromagnet pass through two
Group switching tube is directly connected with automobile batteries, and battery provides the electric current of different directions to electromagnet by the on-off of switching tube, by
In the presence of spring clip and fixed spring, the electric current that battery need to only lead to a bit of time can control brake bars
System.
Specific embodiment five, present embodiment are the combustions to having elastic energy storage mechanism described in specific embodiment one
Expect the further explanation of the energy distributing method of cell hybrid power system, full-vehicle control unit 11 described in step 2 uses
It is defeated that power is sent to fuel cell controller 2, battery management system 5 and elastic energy storage mechanism 9 respectively based on frequency domain allocation algorithm
Signal is controlled out method particularly includes:
Step 2 one judges automobile dynamic system demand general power PdemWhether 0 is greater than, if so, step 2 two is executed,
Otherwise step 2 three is executed；
Step 2 two determines whether power battery remaining capacity is less than the minimum threshold values a of battery capacity, if so, executing
Otherwise step 2 four executes step 2 five；Wherein, a is the 20% of power battery maximum electricity,
Step 2 three determines whether the energy storage state Q of elastic energy storage mechanism 9 is less than or equal to 1, if so, full-vehicle control
Unit 11 controls clutch 8 and is closed, and elastic energy storage mechanism 9 recycles the braking energy of automobile, and otherwise, full-vehicle control unit 11 controls
Clutch 8 separates, and the braking energy of automobile is discharged by mechanical mechanism；
Step 2 four, using low-pass filter to automobile dynamic system demand general power PdemIt is filtered, it is low-pass filtered
The low frequency power signal exported after device is sent to power battery management system 5, and power battery management system 5 controls power battery 4
The power signal equal with low frequency power is exported, automobile dynamic system demand general power P is recycleddemSubtract low-pass filtered device
The low frequency power exported afterwards, obtains the high frequency power signals of automobile dynamic system demand, and full-vehicle control unit 11 controls clutch 8
Closure, control elastic energy storage mechanism 9 export the high frequency power of automobile dynamic system demand；
Step 2 five, full-vehicle control unit 11 control fuel cell system 1 by fuel cell controller 2 and export constant function
Rate is the charging of power battery 4.
Specific embodiment six, present embodiment are the combustions to having elastic energy storage mechanism described in specific embodiment five
Expect the further explanation of the energy distributing method of cell hybrid power system, the cutoff frequency of low-pass filter is 0.016Hz.
Specific embodiment seven, present embodiment are the combustions to having elastic energy storage mechanism described in specific embodiment five
Expect the further explanation of the energy distributing method of cell hybrid power system, full-vehicle control unit 11 described in step 1 utilizes vehicle
Speed, gas pedal aperture and brake pedal opening amount signal calculate automobile dynamic system demand general power PdemMethod particularly includes: it is logical
Cross formula:
T=Tmax·α (1)
Pdem=T ω (2)
It calculates and obtains, in formula, T is driving motor target drive torque；TmaxFor driving motor maximum driving torque；α is oil
Door pedal opening or brake pedal aperture；ω is motor actual speed, i.e. vehicle speed value.
Claims (5)
1. the energy distributing method of the fuel cell hybrid system with elastic energy storage mechanism, based on elastic energy storage machine
The fuel cell hybrid system of structure realizes that the fuel cell hybrid system with elastic energy storage mechanism includes combustion
Expect battery system (1), fuel cell controller (2), unidirectional DC/DC converter (3), power battery (4), battery management system
(5), inverter (6), driving motor (7), clutch (8), elastic energy storage mechanism (9), speed changer (10) and full-vehicle control unit
(11)；
The current signal output end of fuel cell system (1) is connect with the current signal input of unidirectional DC/DC converter (3),
The current output terminal of unidirectional DC/DC converter (3) is connect with the current signal input of inverter (6), the electric current of inverter (6)
Signal input part is connect with the current signal output end of power battery (4) simultaneously；
Inverter (6) current signal output end connection driving motor (7) driving signal input, driving motor (7) it is defeated
Shaft and the input shaft of speed changer (10) are coaxially connected, and speed changer (10) drives automotive wheel by differential mechanism (12)；
The bearing of elastic energy storage mechanism (9) is sequentially connected by clutch (8) and speed changer (10), full-vehicle control unit (11) control
The closure or openness of clutch (8) processed；Elastic energy storage mechanism (9) includes speed change gear and elastic energy storage case；The speed change gear
Including No.1 cabinet, No.1 transmission shaft (911), energy storage gear (912), release energy gear (913), No. two transmission shafts (914), No.1s
Switching tube group (916), No.1 electromagnet (917), No.1 permanent magnet (918), selector fork (919) and intermediate gear (920)；
Energy storage gear (912) and release can gear (913) be socketed on No.1 transmission shaft (911), and energy storage gear (912) is located at
The upside of energy gear (913) is released, intermediate gear (920) is that there are two gears to constitute for socket on a bearing, and two gears divide
Not Wei Yu the bearing upper/lower terminal；The side of energy storage gear (912) and the gear of intermediate gear (920) is sequentially connected,
The other side of intermediate gear (920) gear is located in the plug of selector fork (919), and No.1 permanent magnet (918) is fixed on shift
The lower end of (919) plug pedestal is pitched, No.1 electromagnet (917) is located at the underface of No.1 permanent magnet (918), No.1 electromagnet
(917) positive-negative power terminals are connect by No.1 switching tube group (916) with the positive and negative electrode of automobile batteries；
The lower gear of intermediate gear (920) is connect with No. two transmission shafts (914) by engaged gears；Energy storage gear (912) releases energy
Gear (913) and intermediate gear (920) are respectively positioned in No.1 cabinet；The top of No.1 transmission shaft (911) pass through No.1 cabinet with
Clutch (8) is coaxially connected；No. two transmission shaft (914) lower ends pass through No.1 cabinet and connect with the coaxial bearing of elastic energy storage case；
Elastic energy storage case includes No. three transmission shafts (921), energy storage whorl reed (922), brake (923), No. two cabinets (924) and draws
Force snesor (925)；
No. three transmission shafts (921) are located at the middle part of No. two cabinets (924), are horizontally through No. two cabinets (924), energy storage whorl reed
(922), brake (923) and tension sensor (925) are arranged in No. two cabinets (924), energy storage whorl reed (922) and braking
Device (923) is set on No. three transmission shafts (921), and the side wall of the inner end of energy storage whorl reed (922) and No. three transmission shafts (921) is solid
Fixed connection, tension sensor (925) are fixed on the outer end of energy storage whorl reed (922), and energy storage whorl reed (922) and brake (923)
It does not contact；
The charge and discharge control letter of charge and discharge control signal output end connection fuel cell controller (2) of full-vehicle control unit (11)
Number input terminal, the battery status of battery status signal input terminal connection fuel cell controller (2) of full-vehicle control unit (11)
Signal output end；The electric discharge of discharge power control signal output connection fuel cell system (1) of fuel cell controller (2)
The fuel cell condition signal input part of power control signal input, fuel cell controller (2) connects fuel cell system
(1) battery status signal output end；
The changeover control signal output of full-vehicle control unit (11) connect unidirectional DC/DC converter (3) with transition status input terminal
Changeover control signal input connect with transition status output end；
The discharge power control of discharge power control signal output connection battery management system (5) of full-vehicle control unit (11)
Signal input part, the power of power battery state signal input terminal connection battery management system (5) of full-vehicle control unit (11)
Battery status signal output end；Power output control signal output connection power battery (4) output of battery management system (5)
The battery status signal input terminal of switch control signal input terminal, battery management system (5) connects power battery (4) energy state
Output end；
The revolving speed of driving motor (7) connects the motor status signal input of full-vehicle control unit (11) with dtc signal output end
End；
The electric current changeover control signal of inverter changeover control signal output end connection inverter (6) of full-vehicle control unit (11)
Input terminal；
The stored energy mechanism power output control signal output of full-vehicle control unit (11) connects with stored energy mechanism energy storage state input terminal
Connect output control input and the energy storage state output end of elastic energy storage mechanism (9)；
The transmission state input of full-vehicle control unit (11) connect speed changer (10) with variator power control signal output
Status signal output and power control signal input；
It is full-vehicle control unit (11) and fuel cell controller (2), unidirectional DC/DC converter (3), battery management system (5), inverse
It is connected by CAN bus between change device (6), driving motor (7), elastic energy storage mechanism (9) and speed changer (10)；
It is characterized in that, the specific steps of the energy distributing method of the fuel cell hybrid system with elastic energy storage mechanism
Are as follows:
Step 1: obtaining the energy storage state Q of elastic energy storage mechanism (9) using full-vehicle control unit (11), passing through battery management system
System (5) obtains the remaining capacity of power battery (4), obtains the work of fuel cell system (1) by fuel cell controller (2)
State obtains speed, gas pedal aperture and brake pedal opening amount signal by onboard sensor；Full-vehicle control unit (11) benefit
Automobile dynamic system demand general power P is calculated with speed, gas pedal aperture and brake pedal opening amount signaldem, wherein Q is bullet
Property the ratio between the real-time energy storage value of stored energy mechanism and maximum energy storage value；
Step 2: calculating the automobile dynamic system demand general power P obtained using step 1dem, in conjunction with the surplus of power battery (4)
The energy storage state of remaining electricity and elastic energy storage mechanism (9), full-vehicle control unit (11) using based on frequency domain allocation algorithm respectively to
Fuel cell controller (2), battery management system (5) and elastic energy storage mechanism (9) send power output and control signal；
Step 3: fuel cell controller (2) sends control signal to fuel cell system (1), control fuel cell system (1)
Export electric energy；Battery management system (5) sends output power signal, power battery (4) output electricity to power battery (4)
Energy；Elastic energy storage mechanism (9) receives control signal and output power signal；It realizes to the fuel cell with elastic energy storage mechanism
The energy hole of hybrid power system.
2. the energy distribution side of the fuel cell hybrid system according to claim 1 with elastic energy storage mechanism
Method, which is characterized in that brake (923) includes fixed spring (9231), brake bars (9232), spring clip (9233), braking
Take turns (9234), No. four transmission shafts (9235), No. two switching tube groups (9237), No. two permanent magnets (9238), No. two electromagnet
(9239) and No. three cabinets；
Braked wheel (9234) is set on No. four transmission shafts (9235), and braked wheel (9234) top edge is opened at equal intervals there are four " U "
Type groove, for four "U" type grooves for being inserted into brake bars (9232), the end of the brake bars (9232) is embedded with No. two forever
Magnet (9238), No. two permanent magnets (9238) are connected on No. three intracorporal vertical clapboards of case, a left side for No. three cabinets
Fixed spring (9231) are equipped between side inner wall and partition, it is opposite on the inner wall up and down of No. three cabinets to be equipped with spring clip
(9233), the right side of partition, No. two permanent magnets (9238) and No. two electromagnet (9239) are arranged in the spring clip (9233)
It is oppositely arranged, No. two electromagnet (9239) are arranged between the inner left wall and partition of No. three cabinets, No. two electromagnet
(9239) positive-negative power terminals are connect by No. two switching tube groups (9237) with the positive and negative electrode of automobile batteries, braked wheel
(9234) it is arranged between the right side inner wall and partition of No. three cabinets.
3. the energy distribution side of the fuel cell hybrid system according to claim 1 with elastic energy storage mechanism
Method, which is characterized in that full-vehicle control unit (11) described in step 2 is using electric to fuel respectively based on frequency domain allocation algorithm
Pool controller (2), battery management system (5) and elastic energy storage mechanism (9) send power output control signal method particularly includes:
Step 2 one judges automobile dynamic system demand general power PdemWhether 0 is greater than, if so, executing step 2 two, otherwise
Execute step 2 three；
Step 2 two determines whether power battery remaining capacity is less than the minimum threshold a of battery capacity, if so, thening follow the steps
Two or four, otherwise execute step 2 five；Wherein, a is the 20% of power battery maximum electricity,
Step 2 three determines whether the energy storage state Q of elastic energy storage mechanism (9) is less than or equal to 1, if so, full-vehicle control list
First (11) control clutch (8) closure, elastic energy storage mechanism (9) recycle the braking energy of automobile, otherwise, full-vehicle control unit
(11) braking energy of control clutch (8) separation, automobile is discharged by mechanical mechanism；
Step 2 four, using low-pass filter to automobile dynamic system demand general power PdemIt is filtered, after low-pass filtered device
The low frequency power signal of output is sent to battery management system (5), battery management system (5) control power battery (4) output with
The equal power signal of low frequency power recycles automobile dynamic system demand general power PdemIt is exported after subtracting low-pass filtered device
Low frequency power, obtain automobile dynamic system demand high frequency power signals, full-vehicle control unit (11) control clutch (8) close
It closes, the high frequency power of control elastic energy storage mechanism (9) output automobile dynamic system demand；
Step 2 five, full-vehicle control unit (11) are exported constant by fuel cell controller (2) control fuel cell system (1)
Power is power battery (4) charging.
4. the energy distribution side of the fuel cell hybrid system according to claim 2 with elastic energy storage mechanism
Method, which is characterized in that the cutoff frequency of low-pass filter is 0.016Hz.
5. the energy distribution side of the fuel cell hybrid system according to claim 2 with elastic energy storage mechanism
Method, which is characterized in that full-vehicle control unit (11) described in step 1 utilizes speed, gas pedal aperture and brake pedal aperture
Signal calculates automobile dynamic system demand general power PdemMethod particularly includes: pass through formula:
T=Tmax·α (1)
Pdem=T ω (2)
It calculates and obtains, in formula, T is driving motor target drive torque；TmaxFor driving motor maximum driving torque；α steps on for throttle
Plate aperture or brake pedal aperture；ω is motor actual speed, i.e. vehicle speed value.
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| CN108859726A (en) * | 2018-08-24 | 2018-11-23 | 李骏 | A kind of vehicle fuel battery and the compound power drive system of internal combustion engine |
| CN109532566B (en) * | 2018-12-24 | 2021-07-23 | 青岛理工大学 | Fuel cell power system and power cell charge state control method |
| CN110194065B (en) * | 2019-05-29 | 2021-01-29 | 中国第一汽车股份有限公司 | Vehicle energy control method and device, vehicle and storage medium |
| CN110576758A (en) * | 2019-08-13 | 2019-12-17 | 武汉格罗夫氢能汽车有限公司 | energy management method for hydrogen energy automobile |
| CN111137177B (en) * | 2019-12-31 | 2021-08-24 | 上海捷氢科技有限公司 | Energy control method and device for fuel cell vehicle, storage medium, and electronic device |
| CN113451620A (en) * | 2020-03-27 | 2021-09-28 | 未势能源科技有限公司 | Fuel cell system, vehicle, and control method for fuel cell system |
| CN112659983B (en) * | 2020-04-03 | 2023-05-12 | 长城汽车股份有限公司 | Energy management method and battery control system for non-plug-in fuel cell vehicle |
| CN113263960B (en) * | 2021-06-28 | 2022-08-19 | 太原理工大学 | Self-adaptive energy management method for hydrogen fuel cell automobile |
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| CN102442208A (en) * | 2011-11-02 | 2012-05-09 | 华北电力大学（保定） | Mechanical elastic energy storage driving device |
| CN102700427A (en) * | 2012-06-01 | 2012-10-03 | 武汉理工大学 | Vehicle-mounted fuel cell and storage cell directly paralleled power system with super capacitor |
| CN104960429A (en) * | 2015-07-21 | 2015-10-07 | 清华大学 | Energy distribution device and energy distribution method of compound energy sources of urban electric bus |
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| CN102442208A (en) * | 2011-11-02 | 2012-05-09 | 华北电力大学（保定） | Mechanical elastic energy storage driving device |
| CN102700427A (en) * | 2012-06-01 | 2012-10-03 | 武汉理工大学 | Vehicle-mounted fuel cell and storage cell directly paralleled power system with super capacitor |
| CN104960429A (en) * | 2015-07-21 | 2015-10-07 | 清华大学 | Energy distribution device and energy distribution method of compound energy sources of urban electric bus |
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