CN206878512U - A kind of 48V hybrid power systems battery management component - Google Patents
A kind of 48V hybrid power systems battery management component Download PDFInfo
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- CN206878512U CN206878512U CN201720655668.9U CN201720655668U CN206878512U CN 206878512 U CN206878512 U CN 206878512U CN 201720655668 U CN201720655668 U CN 201720655668U CN 206878512 U CN206878512 U CN 206878512U
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- battery management
- hybrid power
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- power systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
Batteries of electric automobile administrative skill field is the utility model is related to, more particularly to a kind of 48V hybrid power systems battery management component.The 48V hybrid power system battery management components concatenate 48V battery packs and current divider on hybrid power system major loop, the energy density higher compared with 12V plumbic acid chemical cells is provided, more power are provided for increasing electronic load in automobile, and the Li-Ion rechargeable battery module of size and weight with respect to more than 100V of 48V battery packs, high voltage professional component and pressure-resistant element need not be matched, reduces equipment cost.Current information at the current detection module collection current divider of battery management system, to judge that overdischarge occurs in battery or excessively stream provides foundation.Meanwhile the part such as battery management system, 48V battery packs and current divider of the 48V hybrid power system battery management components is loaded in same casing, drillability rate is strong, reliability is also higher.
Description
Technical field
Batteries of electric automobile administrative skill field is the utility model is related to, more particularly to a kind of 48V hybrid power systems electricity
Pond management assembly.
Background technology
As the situation of energy shortage and environmental pollution is increasingly severe, auto industry is by traditional internal combustion engine epoch
Change towards the motorized epoch, electric automobile and correlation technique are fast-developing.Electric automobile（Electric Vehicle, EV）
Including hybrid vehicle（HybridElectric Vehicle, HEV）And pure electric automobile（Pure Electric
Vehicle, PEV）.For more effective energy-saving and emission-reduction, fuel economy is improved, people transform and transducer set in itself in engine
Between brand-new dynamical system, a new system is have found, is exactly hybrid power system, so as to have developed hybrid power vapour
Car.
It is oil electric mixed dynamic system that hybrid vehicle is now commonly used, i.e., on the car of vapour bavin engine, then
Plus a motor, two engines work together.Initial oil electric mixed dynamic system is the startup in traditional combustion engine
Motor（Generally 12V）On installed additional belt driving start motor（BSG）The micro- mixing systems of 12V, using 12V plumbic acid chemical cells
Power supply, wherein belt driving start motor and started usually using generating electricity（Stop-Start）Integral motor, for controlling hair
The startup and stopping of motivation so that the micro- mixing systems of the 12V have the function of automatic start-stop, so as to eliminate the idling of engine,
Reduce oil consumption and discharge.For orthodox car when red light is waited, engine is in idling, and the compressor of air conditioner of belt driving can
To work on, air-conditioning freezes in the same old way.But for having the car of start and stop function, electronic sky is required transformation into when waiting red light
Adjust, not so passenger will endure wait red light or block up when do not have air-conditioned environment.The power of one electric air-conditioning compressor
Minimum to want 2.5kw, the 12V plumbic acid chemical cells in the micro- mixing systems of 12V are difficult to undertake so high output power, therefore current city
Hybrid vehicle on field is configured with more than 100V using more than 100V Li-Ion rechargeable battery module, composition mostly
The power vehicle mixed by force of high voltage type battery.But the hybrid vehicle being configured so that（HEV）Although it can be reduced oil consumption
And discharge, fuel efficiency is greatly improved, but the cost of the professional component of its matching and pressure-resistant element is again very high, is unfavorable for electronic vapour
The overall cost control of car.
The content of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and height can be undertaken by providing one kind
Output power, cost more cheap hybrid power system battery management component again.
The purpose of this utility model is achieved through the following technical solutions：
A kind of 48V hybrid power systems battery management component is provided, including casing and the battery that is loaded in the casing
Management system, 48V battery packs, current divider, the 48V battery packs and the current divider are serially connected in hybrid power system major loop
On, the battery management system include control unit and be connected respectively to the communication unit of described control unit, detection unit and
Switch element, the detection unit include being connected to the current detection module of the current divider, are connected to the 48V battery packs
The voltage detection module of positive and negative electrode and the temperature detecting module for being connected with temperature sensor.
Wherein, the 48V battery packs are 48V Li-ion batteries piles.
Wherein, the 48V Li-ion batteries piles include 12 ~ 14 cells.
Wherein, the current divider is miniaturization current divider.
Wherein, the communication unit includes RS-485 communication modules and CAN.
Wherein, the switch element includes relay and ON-OFF control circuit.
Wherein, described control unit is connected with memory.
Wherein, described control unit is connected with hard signal interface
The beneficial effects of the utility model：The 48V hybrid power system battery management components return in hybrid power system master
48V battery packs and current divider are concatenated on road, there is provided the energy density higher compared with 12V plumbic acid chemical cells, be in automobile increasingly
More electronic loads provides more power, and the lithium ion charging electricity of the size of 48V battery packs and weight with respect to more than 100V
Pond module, and high voltage professional component and pressure-resistant element need not be matched under 48V voltages, avoid 100V high voltage operation rings
Security risk under border, reduces equipment cost.Also, the common current divider by being serially connected in major loop measures 48V battery packs
Current information, battery management system current detection module collection current divider at current information, to judge that battery occurred
Electric discharge or excessively stream provide foundation.Meanwhile battery management system, the 48V battery packs of the 48V hybrid power system battery management components
It is loaded in parts such as current dividers in same casing, drillability rate is strong, reliability is also higher.
Brief description of the drawings
Fig. 1 is the structured flowchart of 48V hybrid power system battery management components；
Fig. 2 is the battery management system structural representation of 48V hybrid power system battery management components.
Embodiment
48V hybrid power system battery management components are further described with the following Examples.
As shown in figure 1, the 48V hybrid power system battery managements component includes the cell tube being loaded in same casing 1
Reason system 2,48V battery packs 3 and current divider 4, battery pack 3 and current divider 4 are serially connected in the hybrid power system where master switch P+, P-
On the major loop C of system.The 48V battery packs 3 of the 48V hybrid power system battery management components are to include 12 ~ 14 cells
48V Li-ion batteries piles, using 48V Li-ion batteries piles replace 12V plumbic acid chemical cells after, the feelings of same size of current
4 times of energy can be provided under condition, and can be reduced in the case where meeting same power by reducing size of current to realize
The purpose of the space-consuming of lithium-ion battery systems, so as to reduce the overall dimensions of battery management component.Current divider 4 is length and width chi
The very little miniaturization current divider for 84*20mm, advantageously reduce the overall dimensions of battery management component.Smallerization can also be used
Onboard current divider, current divider 4 is arranged on the wiring board of battery management system 2 so as to further reduce the size.
As illustrated in fig. 1 and 2, battery management system 2 includes control unit MCU and is connected respectively to control unit MCU electricity
Power-switching circuit, hardware watchdog, communication unit 5, hard signal interface including multicircuit relay and control circuit are so as to controlling
Each switch element, signal deteching circuit, memory, detection unit 6.Wherein, hard signal interface is battery management system 2
The signal transmission forms such as analog quantity, switching value, pulse frequency are provided, the signal storage that control unit MCU is received is in memory
Then be advantageous to follow-up reading process.
Wherein, communication unit 5 includes RS-485 communication modules and CAN.RS-485 communication modules use Maxim
The MAX485 chips of company, with hand-held peripheral hardware or PC peripheral communications, there is higher interference free performance.In driver disabling
Under unloaded or full load condition, the source current of absorption is in 120 μ A between 500 μ A.It is mono- that its internal all device is all operated in 5V
Under power supply, and driver has short circuit current limitation, and driver output can be set into high-impedance state by Thermal shutdown circuit,
Receiver input has fail safe characteristic, when input pull-down, it can be ensured that logic high exports.CAN is adopted
The eCAN control modules carried with control unit MCU chip internal, CAN transceivers use PCA82C250CAN transceivers
Chip, then by photoelectric coupling gate circuit chip 6N137 realize band isolate CAN bus communications, CAN buses it is multiple
Communication interface is connected respectively to vehicle control device, charger and host computer.Communicated acquisition charging shape by CAN with charger
State, major loop C closed and disconnected is then controlled by switch element, over-charging of battery can be prevented or crossed to put.
Wherein, detection unit 6 includes voltage detection module, current detection module and temperature detecting module, the voltage detecting
The positive and negative electrode that the sample circuit of module is connected to 48V battery packs 3 carries out voltage sample, current detection module sampling end connection
Onto the fine rule of current divider, the temperature detecting module is connected with temperature sensor.Voltage detection module detects and judges 48V batteries
The power supply state of each cell in group 3.Current information at current detection module collection current divider, to judge that battery occurs
Overdischarge or excessively stream provide foundation, also to be measured by the coulomb of current-vs-time to estimate that battery SOC provides foundation.48V lithiums from
The working condition of sub- battery pack and its internal temperature and operating ambient temperature have critically important relation, in 48V lithium ion batteries
Select several representational position mounting temperature sensors to enter the measurement of trip temperature in group, and realize heating and radiating management,
The too high initiation security incident of batteries of electric automobile group temperature can be prevented.
The control unit MCU of battery management system 2 carries out SOC according to data such as the electric current of sampling, voltage, time, temperature
Judgement and analysis, ensure that SOC is maintained in rational scope, prevent the damage to 48V battery packs 3 due to overcharge or overdischarge
Wound, so as to forecast that power vehicle 48V battery packs 3 there remains the state-of-charge of how many energy or battery at any time.It is single by adjusting
Body battery charge mode, the battery terminal voltage of all batteries is carved with good uniformity when each in guarantee system.
Balanced management control is taken under battery set charge/discharge state, can not only allow electricity utilization rate in each cell to maximize, increase
Add course continuation mileage, and the aging rate of each cell can be made uniform, extend the service life of battery pack, wherein, actively
The electric current maximum that weighs 500mA, passive euqalizing current maximum 100mA.
Battery management system 2 is used to carry out the information such as voltage, temperature, electric current to the 48V Li-ion batteries piles in casing 1
Collection, 48V Li-ion batteries piles states are monitored in real time, estimate 48V Li-ion batteries piles SOC, analyze battery failures and alarm, together
When can carry out information exchange by CAN, RS485 communication interface and ambient systems, realize that the optimization to 48V Li-ion batteries piles is filled
Electric discharge management, reaches the effective use energy content of battery and the purpose of rational management.
This 48V hybrid power system battery managements component can accelerate in vehicle, slow down, and energy regeneration supplies during braking
Should wait it is various in the case of, support the high-efficiency operation of hybrid electric vehicle h type engine h and motor, be suitably applied some to battery strings
Count the application scenario for requiring few and only one case battery or require size strict vehicle, and battery coherent signal
Collection, control can be completed by same control unit MCU, it is not necessary to using complicated master-slave architecture system.And cell tube
The parts such as reason system, 48V battery packs and current divider are loaded in same casing, and overall structure is relatively easy, small volume, favorably
In reducing cost and can be good at realizing the control and protection of battery.
Claims (8)
1. a kind of 48V hybrid power systems battery management component, it is characterised in that including casing and be loaded in the casing
Battery management system, 48V battery packs, current divider, the 48V battery packs and the current divider are serially connected in hybrid power system master and returned
Lu Shang, the battery management system include control unit and are connected respectively to communication unit, the detection unit of described control unit
And switch element, the detection unit include being connected to the current detection module of the current divider, are connected to the 48V battery packs
The voltage detection module of positive and negative electrode and the temperature detecting module for being connected with temperature sensor.
A kind of 2. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the 48V electricity
Pond group is 48V Li-ion batteries piles.
A kind of 3. 48V hybrid power systems battery management component according to claim 2, it is characterised in that the 48V lithiums
Ion battery group includes 12 ~ 14 cells.
A kind of 4. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the shunting
Device is miniaturization current divider.
A kind of 5. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the communication
Unit includes RS-485 communication modules and CAN.
A kind of 6. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the switch
Unit includes relay and ON-OFF control circuit.
A kind of 7. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the control
Unit is connected with memory.
A kind of 8. 48V hybrid power systems battery management component according to claim 1, it is characterised in that the control
Unit is connected with hard signal interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720655668.9U CN206878512U (en) | 2017-06-07 | 2017-06-07 | A kind of 48V hybrid power systems battery management component |
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| CN201720655668.9U CN206878512U (en) | 2017-06-07 | 2017-06-07 | A kind of 48V hybrid power systems battery management component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350122A (en) * | 2019-07-26 | 2019-10-18 | 东莞市德富新能源有限公司 | A kind of ferric phosphate lithium cell |
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2017
- 2017-06-07 CN CN201720655668.9U patent/CN206878512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350122A (en) * | 2019-07-26 | 2019-10-18 | 东莞市德富新能源有限公司 | A kind of ferric phosphate lithium cell |
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