CN208256850U - A kind of hybrid-power battery system - Google Patents
A kind of hybrid-power battery system Download PDFInfo
- Publication number
- CN208256850U CN208256850U CN201820701082.6U CN201820701082U CN208256850U CN 208256850 U CN208256850 U CN 208256850U CN 201820701082 U CN201820701082 U CN 201820701082U CN 208256850 U CN208256850 U CN 208256850U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- supercapacitor
- power
- energy
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E60/13—Energy storage using capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a kind of hybrid-power battery systems, including traction electric machine, power inverter, battery pack, Switching Power Supply, supercapacitor and power resistor, the traction electric machine is connect by power inverter with battery pack, one end of the Switching Power Supply is connected between power inverter and battery pack, the other end of Switching Power Supply is connect with supercapacitor, the power resistor is connect with supercapacitor, power resistor is used to discharge the electric energy in supercapacitor, and the power inverter and Switching Power Supply are connect with battery management system.The energy-storage system that the utility model passes through total positive and negative polarities auxiliary in parallel in traditional pure ferric phosphate lithium battery pack or ternary lithium battery pack, to increase the high rate performance of battery pack entirety, battery pack is set to have high rate performance excellent in short time range, have better accelerating ability and energy recovery efficiency using the pure electric vehicle of hybrid-power battery system.
Description
Technical field
The utility model relates to new energy vehicle technical field of battery management, and in particular to a kind of hybrid-power battery system
System.
Background technique
In recent years, global warming, acid rain, haze have become the word for being often able to hear in people's lives.To solve this
A series of environmental problem of sternnesses, new energy vehicle are considered as the height weight that following main means of transport causes countries in the world
Depending on.One of the key technology for being configured as new energy vehicle of battery pack, becomes the hot spot of the concern of various countries experts and scholars.Newly
Energy vehicle includes hybrid vehicle and pure electric vehicle.The energy security project that hybrid vehicle is mixed using oil electricity.Pass through
Apparatus for storing electrical energy is carried, when vehicle needs to accelerate, dynamical system is changed into mechanical energy for electric energy is exported, and guarantees internal combustion engine
Fuel economy reduces vehicle oil consumption；When vehicle needs braking deceleration, extra mechanical energy is changed into electric energy and is returned
It receives.
In view of petroleum is as a kind of non-renewable resources, China is in the relatively American-European situation about falling behind of vehicle manufacture level
Under, the strategy for greatly developing pure electric vehicle is proposed, realizes that bend is overtaken other vehicles.Under the drive of national policy, using ferric phosphate
The new energy vehicle market share cumulative year after year of lithium battery, ternary lithium battery.To increase course continuation mileage, existing phase, which is cut-off, to be looked forward to releasing
New energy vehicle with electric energy recovery technology.That is: during vehicle braking, the mechanical energy recycling of vehicle is entered into battery system.
However, either ferric phosphate lithium cell or ternary lithium battery, high rate performance be restrict one of its energy recovery efficiency it is important
Factor.Although can reduce the electric current that each battery cell is born, this method by the number for increasing lithium battery parallel connection
It is restricted by battery pack space, effect is not satisfactory.
Utility model content
The purpose of this utility model is to provide a kind of hybrid-power battery systems, to traditional pure ferric phosphate lithium battery pack
Or ternary lithium battery improves, and battery pack is made to have high rate performance excellent in short time range.
To achieve the above object, the utility model uses following technical scheme:
A kind of hybrid-power battery system, including traction electric machine, power inverter, battery pack, Switching Power Supply, super capacitor
Device and power resistor, the traction electric machine are connect by power inverter with battery pack, and one end of the Switching Power Supply is connected to
Between power inverter and battery pack, the other end of Switching Power Supply is connect with supercapacitor, the power resistor and super electricity
Container connection, power resistor are used to discharge the electric energy in supercapacitor, the power inverter and Switching Power Supply and cell tube
The connection of reason system.
As shown from the above technical solution, the utility model passes through in traditional pure ferric phosphate lithium battery pack or ternary lithium battery
The energy-storage system of total positive and negative polarities of packet auxiliary in parallel, to increase the high rate performance of battery pack entirety.The energy storage of the auxiliary
System power supply containing two-way switch and a supercapacitor.When the vehicle accelerates, motor is surrounded by biggish current needs to battery,
After demand is more than certain threshold value, supercapacitor is powered through Switching Power Supply, power inverter to traction electric machine.Work as vehicle braking
When deceleration, mechanical energy is switched to electric energy by traction electric machine, is filled with energy-storage system.To avoid pure ferric phosphate lithium battery pack and ternary battery
Packet overcurrent, when the current value at test point A is more than threshold value, electric current will be filled with supercapacitor, and have battery pack through Switching Power Supply
Excellent high rate performance, has better acceleration using the pure electric vehicle of hybrid-power battery system in standby short time range
Energy and energy recovery efficiency.
Detailed description of the invention
Fig. 1 is the circuit block diagram of the utility model.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of hybrid-power battery system of the present embodiment, including drive system and energy-storage system, the drive
Dynamic system includes wheel 1 and car transmissions 2 and traction electric machine, which is connected with wheel 1 by car transmissions 2
It connects；The energy-storage system includes power inverter, large-capacity lithium iron phosphate/ternary lithium battery pack, two-way switch power supply, super capacitor
Device and power resistor, the traction electric machine are connect by power inverter with battery pack, and one end of Switching Power Supply is connected to power change
Between parallel operation and battery pack, the other end of Switching Power Supply is connect with supercapacitor, and power resistor is connect with supercapacitor, function
Rate resistance is used to discharge the electric energy in supercapacitor, and power inverter and Switching Power Supply are controlled by battery management system.This reality
The battery pack for applying example includes large-capacity lithium iron phosphate battery pack or ternary lithium battery pack.
Current detecting point between power inverter and energy storage device (battery pack and supercapacitor) has at two, respectively by
It is identified as A and B.Current detecting point A detects power inverter side containing energy storage device total current value；Current detecting point B detection is opened
Powered-down source side, flows in or out the current value of supercapacitor.Traction electric machine fills when vehicle needs output power
Work as motor, consume electric energy, generates mechanical energy, vehicle wheel rotation is driven by vehicle drive system.When vehicle needs to slow down, lead
Draw motor and serve as generator, consumes mechanical energy, produce electricl energy.Power inverter can two-way operation, realize the bi-directional of electric energy.
Size of current and direction at current detecting point A and at B are acquired in real time by battery management system.Large-capacity lithium iron phosphate/ternary
The charging current and discharge current of lithium battery pack can be calculated according to the measured value of current detecting point A point and B point.
Power inverter can two-way operation.In driver's accelerator pedal, power inverter can be by hybrid energy storage
The direct current of system output is changed into alternating current, works for traction electric machine.Under the drive of traction electric machine, through vehicle transmission system
System drives vehicle wheel rotation.When driver touches on the brake pedal, the mechanical energy of vehicle is changed into electric energy by traction electric machine, and power becomes
The electric energy that parallel operation provides traction electric machine is rectified into direct current, and is filled with hybrid energy storage system.
When energy-storage system need to traction electric machine provide electric energy when, battery management system will judge current detecting point A
Whether the current value at place is greater than set threshold value, determines whether Switching Power Supply works.And according to current direction at A point, judgement
When Switching Power Supply works, the transmission direction of electric energy.
Battery management system acquires the current value of current detecting point A and current detecting point B in real time, by controlling power conversion
The working frequencies of switchable semiconductor devices in device and Switching Power Supply is completed to large-capacity lithium iron phosphate/ternary battery pack and super
The current limliting of capacitor mould group.
The present embodiment, supercapacitor is formed in parallel by more capacitor monomers.The pressure resistance of each supercapacitor is
16V, capacity 20F.For the long-life for guaranteeing supercapacitor, when Switching Power Supply charges to supercapacitor, charging voltage
Always it is no more than 15V.To guarantee that supercapacitor when needing to provide electric energy to power inverter, has enough electric energy to store up
It is standby.When super capacitor module voltage value is lower than the 30% of pressure voltage, Switching Power Supply no longer extracts energy from supercapacitor
Amount.Such as electric current comes from power inverter at current detecting point at this time or electric current comes from large-capacity lithium iron phosphate/ternary lithium battery pack
And being less than the 90% of maximum discharge current, then Switching Power Supply charges to supercapacitor.When vehicle needs power output, through function
The power flow of rate converter is to be transferred to drive system from the side of hybrid energy storage system.
Working principle of the utility model is: the current value of the input power converter detected at current detecting point A is small
When large-capacity lithium iron phosphate/ternary lithium battery threshold value set by program, Switching Power Supply starting by large-capacity lithium iron phosphate/
The electric energy stored in ternary lithium battery pack is transferred in supercapacitor.By implement at current detecting point B electric current it is real-time
Feedback control is completed in acquisition, it is ensured that it is maximum that the current value at current detecting point B is less than large-capacity lithium iron phosphate/ternary lithium battery pack
Permit 30% of current differential at discharge current and current detecting point A point.Therefore, large-capacity lithium iron phosphate/ternary lithium at this stage
Battery has been completed at the same time in the case where overcurrent does not occur and provides electric energy to traction electric machine and charge to supercapacitor.When
After large-capacity lithium iron phosphate/ternary lithium battery pack discharge-rate reaches threshold value set by program, as traction electric machine needs more
More electric currents, and the voltage of supercapacitor is greater than the 30% of its pressure voltage, then Switching Power Supply starts, by the electricity of supercapacitor
Power inverter, driving traction electric machine work can be transferred to.When vehicle needs braking deceleration, the power flow through power inverter is
Hybrid energy storage system is transferred to from the side of drive system.When supercapacitor voltage value be less than its pressure voltage 60%, open
Electric energy from power inverter is input in supercapacitor by powered-down source.Switching Power Supply makes electricity by control switch frequency
The value of test point B point is flowed close to the value of A point.That is: the electric energy almost all generated by consumption mechanical energy is filled in supercapacitor.
When the voltage value of supercapacitor is greater than the 60% of its pressure voltage, battery management system is according at current detecting point A point
Current value judges whether to charge to supercapacitor.As the current value at current detecting point A point reach large-capacity lithium iron phosphate/
The 90% of the maximum charging current of ternary lithium battery pack license, then Switching Power Supply starts, and charges to supercapacitor.To
Ensure that the current value at current detecting point A point no longer rises.When reaching the 90% of its pressure voltage such as the voltage value of supercapacitor,
Then supercapacitor is discharged by power resistor, until ultracapacitor voltage drops to the 85% or less of its pressure voltage.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (1)
1. a kind of hybrid-power battery system, it is characterised in that: including traction electric machine, power inverter, battery pack, switch electricity
Source, supercapacitor and power resistor, the traction electric machine are connect by power inverter with battery pack, the Switching Power Supply
One end is connected between power inverter and battery pack, and the other end of Switching Power Supply is connect with supercapacitor, the power electricity
Resistance is connect with supercapacitor, and the power resistor power inverter and is opened for discharging electric energy in supercapacitor
Powered-down source is connect with battery management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701082.6U CN208256850U (en) | 2018-05-11 | 2018-05-11 | A kind of hybrid-power battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820701082.6U CN208256850U (en) | 2018-05-11 | 2018-05-11 | A kind of hybrid-power battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208256850U true CN208256850U (en) | 2018-12-18 |
Family
ID=64635604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820701082.6U Active CN208256850U (en) | 2018-05-11 | 2018-05-11 | A kind of hybrid-power battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208256850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114335837A (en) * | 2021-12-31 | 2022-04-12 | 远景动力技术(江苏)有限公司 | Battery pack |
-
2018
- 2018-05-11 CN CN201820701082.6U patent/CN208256850U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114335837A (en) * | 2021-12-31 | 2022-04-12 | 远景动力技术(江苏)有限公司 | Battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106696721B (en) | Dual-source energy system of pure electric vehicle, power supply control method, fast charging method and slow charging method | |
| CN100581024C (en) | Charging discharging fast equalizing apparatus for accumulator set or super capacitor set | |
| CN201914107U (en) | Hybrid electric vehicle control system based on super capacitor | |
| CN103692925B (en) | The economic driving model control method of a kind of electronlmobil | |
| CN105365595B (en) | Electric automobile power battery and super capacitor dynamical system and control method | |
| CN201872629U (en) | Extended range type pure electric vehicle system | |
| CN102611203B (en) | Efficient composite energy storage system for vehicles | |
| CN108512239A (en) | A kind of hybrid energy sources system for electric vehicle and its control strategy | |
| CN102069721A (en) | Super capacitor-based electric automobile hybrid power control system | |
| CN106080223A (en) | Lithium battery and super capacitor dual-energy power distribution control system and method | |
| CN104015626A (en) | Hybrid power system for electric car | |
| CN103786589B (en) | A kind of electric quantity control unit of mixed energy storage system electric motor car and control method | |
| CN205686199U (en) | The composite power source of power-type and accumulation energy type lithium electricity composition and electric automobile composite power source | |
| CN103144526A (en) | Hybrid power vehicle using composite power supply power system | |
| Li et al. | The structure and control method of hybrid power source for electric vehicle | |
| CN108001275A (en) | A kind of fuel cell electric vehicle electric power coupling drive system and its control method | |
| CN105162225A (en) | External-mix self-reconfigurable supercapacitor battery circuit and quick charge control method | |
| CN103448545A (en) | Automobile energy recovery and utilization method based on wheel axle generator | |
| CN103723050B (en) | A kind of energy control method of hybrid power system electric rail vehicle | |
| CN109649371A (en) | A kind of hybrid power heavy motor truck power control system with super capacitor | |
| CN204674395U (en) | Based on the dual energy source electric car energy management system of predictive control | |
| CN204928197U (en) | Be applied to to open and stop compound power of systematic two voltage ultracapacitor system | |
| CN206202005U (en) | A kind of dynamical system for pure electric vehicle | |
| CN206242935U (en) | Pure electric automobile double source energy system | |
| CN208256850U (en) | A kind of hybrid-power battery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |