CN102983608A - Composite lithium battery and supercapacitor power supply control device for electromobile - Google Patents
Composite lithium battery and supercapacitor power supply control device for electromobile Download PDFInfo
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- CN102983608A CN102983608A CN2012105484223A CN201210548422A CN102983608A CN 102983608 A CN102983608 A CN 102983608A CN 2012105484223 A CN2012105484223 A CN 2012105484223A CN 201210548422 A CN201210548422 A CN 201210548422A CN 102983608 A CN102983608 A CN 102983608A
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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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Abstract
The invention relates to a composite lithium battery and supercapacitor power supply control device for an electromobile, which comprises a box body, wherein a dust cover is arranged on the box body. The device is characterized in that the box body is internally provided with a battery energy supply module; an anode port of the battery energy supply module is connected with an input end of an operational control module; an output end of the operational control module is connected with an engine control port by current direction control modules; the engine control port is connected with an input end of a direct current booster module by a field effect auxiliary module; an output end of the direct current booster module is connected with an input end of a voltage stabilization module; and an output end of the voltage stabilization module is connected with a supercapacitor by the current direction control module to recover energy. Therefore, the energy demand of the electromobile under various conditions can be satisfied, and the device is simple in principle and simple, stable in performance, safe and reliable.
Description
Technical field
The present invention relates to a kind of control device, relate in particular to a kind of electric vehicle lithium battery super capacitor composite power source control device.
Background technology
In modern many application, such as mobile electronic equipment, communications equipment, Aero-Space power-supply system and motor vehicle etc., their load has that a common trait---peak power is obviously greater than average power.In the middle of existing battery supply, the lead-acid battery energy density is lower, seriously polluted.Although the fuel cell energy density is high, so it needs very long start-up time of the slow application of response speed to be restricted.Other two kinds of novel battery power supplys---lithium ion battery and super capacitor, the former has higher energy density, and the latter has very high power density, long-life.But, do not have at present a kind of device above-mentioned various battery apparatus can be carried out better integration.
Summary of the invention
Purpose of the present invention is exactly in order to solve the above-mentioned problems in the prior art, and a kind of electric vehicle lithium battery super capacitor composite power source control device is provided.
Purpose of the present invention is achieved through the following technical solutions:
A kind of electric vehicle lithium battery super capacitor composite power source control device, include box body, be provided with dust cap on the described box body, wherein: be provided with the battery-powered assembly in the described box body, the anodal port of described battery-powered assembly is connected with the input of operation control assembly, the output of described operation control assembly is connected with the engine control port by sense of current control assembly, described engine control port is connected with the input of DC boosting assembly by the field effect transistor accessory part, the output of described DC boosting assembly connects the input of stabipack, then the output of described stabipack is connected to ultracapacitor with recuperated energy by sense of current control assembly, described operation control assembly is provided with auxiliary control port, and described auxiliary control port connects the negative pole port of battery-powered assembly by ultracapacitor.
Further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: described operation control assembly includes the energy resource supply port, described energy resource supply port one side links to each other with the battery-powered assembly, described energy resource supply port opposite side is connected with the input of circuit control module, the output of described circuit control module is connected into the output of operation control assembly, described circuit control module includes the electric current adjusting part, is connected with the N-type metal-oxide-semiconductor field effect t on the described electric current adjusting part.
Further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: be provided with auxiliary current direction control module in the described operation control assembly.
Further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: described ultracapacitor is composed in series by the monomer super capacitor, or is comprised of monomer super capacitor institute in parallel.
Again further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: described battery-powered assembly includes the battery accommodating box, is provided with the lithium ion battery group that the cell series connection consists of in the described battery accommodating box; Or be provided with the cell lithium ion battery group that consists of in parallel in the described battery accommodating box.
Further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: described box body side is provided with ventilation hole.
Further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: be provided with radiating subassembly in the described box body.
Again further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: described radiating subassembly includes fin, is provided with radiator fan on the described fin.
Again further, above-mentioned a kind of electric vehicle lithium battery super capacitor composite power source control device, wherein: be provided with reinforcement in the described box body.
The advantage of technical solution of the present invention is mainly reflected in: rely on cooperating between battery-powered assembly and the ultracapacitor, when electric automobile startup, acceleration or upward slope need High-current output, utilize the high power density characteristic of ultracapacitor by the required electric current of its output. when electric automobile normally travels, by lithium ion battery normal power supply in the output-current rating scope, simultaneously ultracapacitor is charged in order to accelerating or upward slope institute energy requirement.When electric automobile descending, deceleration or skidding, carry out energy and reclaim, utilize ultracapacitor to carry out electric energy and reclaim.And this is practical newly to overcome the deficiencies in the prior art, has principle and simple in structure, stable performance and the characteristics such as safe and reliable, can be widely used on the motor vehicle.
Description of drawings
Purpose of the present invention, advantage and disadvantage will be for illustration and explanation by the non-limitative illustration of following preferred embodiment.These embodiment only are the prominent examples of using technical solution of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of protection of present invention.In the middle of these accompanying drawings,
Fig. 1 is the organigram of this electric vehicle lithium battery super capacitor composite power source control device;
Fig. 2 is embodiment one motor operation voltage power supply electric current and the graph of relation of time;
Fig. 3 is the variation diagram of super capacitor recuperated energy voltage when lithium ion battery is to super capacitor charging and power recovery among the embodiment one;
Fig. 4 is national automobile industry standard simulated condition trial curve;
Fig. 5 be among the embodiment two the super capacitor monomer voltage with the variation diagram of discharge time;
Fig. 6 be among the embodiment two lithium-ion battery monomer voltage with the variation diagram of discharge time;
Fig. 7 is the principle schematic of this electric vehicle lithium battery super capacitor composite power source control device.
1 box body, 2 battery-powered assemblies
3 operation control assemblys, 4 sense of current control assemblys
5 stabipacks, 6 DC boosting assemblies
7 reinforcements, 8 engine control ports
9 ultracapacitors, 10 electric current adjusting parts
11N type metal oxide field is imitated 12 auxiliary current direction controls and is answered the control module
13 ventilation holes, 14 fin
15 radiator fans
Embodiment
A kind of electric vehicle lithium battery super capacitor composite power source control device shown in Fig. 1～7, include box body 1, be provided with dust cap at box body 1, its special feature is: be provided with battery-powered assembly 2 in the box body 1 that the present invention adopts, the anodal port of battery-powered assembly 2 is connected with the input of operation control assembly 3.Simultaneously, the output of operation control assembly 3 is connected with engine control port 8 by sense of current control assembly 4, and engine control port 8 is connected with the input of DC boosting assembly 6 by the field effect transistor accessory part.And the output of DC boosting assembly 6 connects the input of stabipack 5, and then the output of stabipack 5 is connected to ultracapacitor 9 by sense of current control assembly 4.Be provided with auxiliary control port at operation control assembly 3, auxiliary control port connects the negative pole port of battery-powered assembly 2 by ultracapacitor 9.
With regard to the better execution mode of the present invention one, work for the ease of matching battery energy supply assembly 2, operation control assembly 3 includes the energy resource supply port, and energy resource supply port one side links to each other with battery-powered assembly 2, and energy resource supply port opposite side is connected with the input of circuit control module.Simultaneously, be connected into the output of operation control assembly 3 at the output of circuit control module.Specifically, in order to improve whole regulating effect, circuit control module includes electric current adjusting part 10, is connected with N-type metal-oxide-semiconductor field effect t 11 at electric current adjusting part 10, both the NMOS field effect transistor.Adopting the NMOS field effect transistor is to realize the large flow of Small current control as the purpose of switch element, can connect to realize digital control practical interlock circuit in new.
And, consider the flow direction that can effectively control electric current, promote the quality of using, be provided with auxiliary current direction control module 12 in the operation control assembly 3.Certainly, for the facility of production and assembly, sense of current control assembly 4 all can adopt diode (DIODE) with auxiliary current direction control module 12.
Further, consider the facility of whole implementation, can adapt to different application needs, what satisfy different depth of discharges is user demand, promotes through-put power, and ultracapacitor 9 is composed in series by the monomer super capacitor.Or institute in parallel forms by the monomer super capacitor.
Same, in order to promote the charging and discharging energy storage effect of battery-powered assembly 2, battery-powered assembly 2 of the present invention includes the battery accommodating box, is provided with the lithium ion battery group that the cell series connection consists of in the battery accommodating box.Or, be provided with the cell lithium ion battery group that consists of in parallel in the described battery accommodating box.
Again further, the various assembly modules of this practical new employing produce heat easily when processing corresponding ultracapacitor 9 with lithium ion battery group operating state, cause the work fatigue of components and parts, in order effectively to dispel the heat, box body 1 side is provided with ventilation hole 13.Certainly, for better improving radiating effect, be provided with radiating subassembly in the box body 1.Specifically, this practical new radiating subassembly that adopts includes fin 14, is provided with radiator fan 15 at fin 14.This is arranged, can improve air change efficiency, in the time of cooling, promote the life-span.
Moreover, in order to promote this practical new bulk strength, adapt to different installation station needs, prevent from falling or accident occurs and ftracture, can improve the ability of box body 1 anti-stress, in box body 1, be provided with reinforcement 7.Like this, can effectively promote box body 1 firm degree.Moreover, rely on the existence of reinforcement 7, can carry out suitable location to the assembly in the box body 1, prevent vibration displacement, improve useful life.
In conjunction with actual operating position of the present invention:
Embodiment one:
The lithium-ion battery monomer nominal voltage is 3.6V, adopts 3 joint series connection, the initial total and about 11.9V of virtual voltage.Ultracapacitor monomer nominal voltage is 2.5V, adopts 5 joint series connection, and initial virtual voltage is about 11.8V.
Electric current and voltage is respectively motor voltage and electric current over time among Fig. 2.Wherein 1～60s, 120～180s are that super capacitor is powered to motor, so the interior magnitude of voltage of section also is the super capacitor magnitude of voltage at this moment, current value also is the super capacitor discharge current value.60～120s, 180～300s are that lithium ion battery is powered to motor, so current value also is the lithium ion battery discharge current value in this time period, and because the lithium ion battery gross energy is very high (take a joint 2Ah lithium ion battery as example, during the 2A current discharge, need 1h could discharge voltage to be reduced to cut-ff voltage), thus 300s in discharge time lithium ion battery group voltage stabilization at 11.8v.Among Fig. 3,0～250s is that lithium ion battery charges to super capacitor, and super capacitor voltage raises in time gradually.250～300s is the super capacitor stationary voltages.The motor recuperated energy was to the super capacitor constant voltage charge when 300～310s was Braking system.Leave standstill super capacitor voltage after 310～360s finishes for charging and recover steadily final stable.
The course of work is as follows: with reference to figure 7, when electric motor car started, the input input high level made NMOS1 open conducting work.The second input, the 3rd input, four-input terminal input low level, thereby NMOS2, NMOS3, NMOS4 cut-off are equivalent to disconnect.At this moment, ultracapacitor is exported large electric current to motor.Motor operating voltage is about 11v.As shown in Figure 2,0～60s, ultracapacitor provides large electric current (negative value represents discharge) to motor, along with ultracapacitor discharge, its lower voltage.
Electric motor car should be operated in the pattern of normaling cruise when startup is complete, make NMOS1 cut-off (be equivalent to disconnect) to the first input end input low level this moment, the second input input high level is made NMOS2 conducting work, 3, four-input terminal remains low level NMOS3, NMOS4 not on-state.The lithium ion battery group makes its stable travelling to the motor normal power supply during cruise mode, and regulating resistance R1 can change motor speed among a small circle.As shown in Figure 2,60～120s, lithium ion battery is to the motor normal power supply, and motor operating voltage is about 9v, the slow-speed of revolution.
When acceleration or upward slope, the second input, the 3rd input, four-input terminal input low level are made NMOS2, NMOS3, not conducting of NMOS4, the first input end input high level is made its conducting work, and ultracapacitor is exported large electric current to realize acceleration or to go up a slope to motor.As shown in Figure 2,120～180s, ultracapacitor provides large electric current to motor, and ultracapacitor voltage continues to reduce.
Acceleration or the rear electric motor car that goes up a slope enter again the pattern of normaling cruise, and make NMOS1, NMOS3, NMOS4 not conducting to the second input, the 3rd input, four-input terminal input low level this moment, and the second input input high level is made NMOS2 conducting work.As shown in Figure 2, considerable time after the 180s, the lithium ion battery group can provide stabling current to motor.The total capacity of the time of travelling by the lithium ion battery group determines, if only have single group 2000mAh lithium ion battery to form 12v, then approximately provides 1h to stablize running time; Correspondingly, when then approximately providing 10h, 10 groups of such battery pack parallel connections stablize running time.
By finding out among Fig. 2, ultracapacitor is along with use, lower voltage is apparent in view, after the ultracapacitor series voltage is less than 9v, can produce obvious impact to electric motor starting, therefore after the ultracapacitor terminal voltage is less than 9v, make NMOS3 open conducting to the 3rd input input high level, like this, the lithium ion battery group is charged to ultracapacitor.The effect of 2 pairs of resistance R charging current limiting, prevent 12v lithium ion battery group to the 9v ultracapacitor directly charging cause large electric current and destroy the structure of lithium ion battery.Diode D1 guarantees the sense of current.In fact self also has voltage drop behind the diode current flow, add, the reason such as NMOS3 dividing potential drop, after ultracapacitor charged to 11.3v, charging current was very little, continuation is not obvious to its charging effect, therefore after charging to 11.3v the 3rd input input low level is made the NMOS3 cut-off.As shown in Figure 3, in 0～250s, ultracapacitor voltage is charged to 11.3v by 8.9v.
When electric automobile need to be braked, the 1,2, the 3rd input input low level made NMOS1, NMOS2, not conducting of NMOS3, and the four-input terminal input high level makes NMOS4 conducting work.This moment braking energy by electric power generation through after the DC booster, pressurizer to ultracapacitor charging carry out energy and reclaim.The current direction super capacitor guarantees that super capacitor can not discharge to motor when making its diode D2 guarantee braking.Regulating its output port voltage of stepup transformer pressurizer is 12v.Shown in 300～360s among Fig. 3.(300～310s) carry out the 12v constant voltage charge to ultracapacitor, ultracapacitor voltage drop and finally being stabilized in about 11.8v after charging finishes within ten seconds of braking.
Embodiment two:
According to the simple analog operating mode in People's Republic of China's automobile industry standard (QC/T743-2006), be storage battery simple analog operating mode discharge curve wherein such as Fig. 4.Three joint lithium ion battery series connection are adopted in this experiment, five joint ultracapacitor series connection.According to the I that stipulates in the standard
3We have calculated the I of this experiment
3Be about 0.5A, according in the standard during low discharging current discharging current be I
3Equal 0.5A, discharging current is 9I during heavy-current discharge
3Equal 4.5A.Experiment adopts the Arbin cell tester that the monomer voltage of lithium ion battery and ultracapacitor is carried out real time record.As shown in Figure 5, the voltage temporal evolution (three solid line and two dotted lines) of five joint ultracapacitors.As shown in Figure 6, the voltage temporal evolution (two solid line and a dotted line) of three joint lithium ion batteries.According to stipulating in the national standard, 1～11 step 1 that is respectively the simulated condition discharge regime～step 11 among Fig. 4.
The device of original system is adopted in this experiment, can not provide the Constant Current Load pattern because do not consider recuperated energy and Arbin cell tester, so do not add motor and the Voltage stabilizing module that boosts.The place in circuit mode of lithium ion battery group and bank of super capacitors is constant.
With reference to figure 7: during step 1, port 2 input high levels of system NMOS2 make the NMOS2 conducting, and the Arbin cell tester carries out 1I to the lithium ion battery group
3Discharge, the voltage of lithium-ion battery monomer is all descending as seen from Figure 6, because the super capacitor self-characteristic, its voltage slightly descends.During step 2, port 2 input low levels of system NMOS2 make not conducting of NMOS2, and the first port input high level of NMOS1 makes the NMOS1 conducting, and the Arbin cell tester carries out 9I to bank of super capacitors
3Discharge, the voltage of ultracapacitor monomer obviously descends as seen from Figure 5.During step 3, system's the first port input low level makes not conducting of NMOS1, the 3rd port input high level makes the NMOS3 conducting, this moment, the lithium ion battery group was charged to super capacitor, can see that from Fig. 5 the super capacitor monomer voltage is at rising, because charging current is very little, so the lithium-ion battery monomer lower voltage is not obvious among Fig. 6.The 3rd port input low level makes not conducting of NMOS3 when step 4 begins, and port 2 input high levels make the NMOS2 conducting.Step 4～6, step 7～9 repeating steps 1～3, step 10～11 repeating steps 1～2.
Lithium-ion battery monomer voltage and super capacitor monomer voltage can be found out with the variation of discharge time from Fig. 5 and Fig. 6, and this practical new power control system satisfies the simulated condition requirement that national automobile industry standard is formulated.In different low currents and large current phase, lithium-ion battery monomer voltage and super capacitor monomer voltage all reach good consistency.
Can find out by above-mentioned character express, after adopting the present invention, rely on cooperating between battery-powered assembly and the ultracapacitor, when electric automobile startup, acceleration or upward slope need High-current output, utilize the high power density characteristic of ultracapacitor by the required electric current of its output. when electric automobile normally travels, by lithium ion battery normal power supply in the output-current rating scope, simultaneously ultracapacitor is charged in order to accelerating or upward slope institute energy requirement.When electric automobile descending, deceleration or skidding, carry out energy and reclaim, utilize ultracapacitor to carry out electric energy and reclaim.And this is practical newly to overcome the deficiencies in the prior art, has principle and simple in structure, stable performance and the characteristics such as safe and reliable, can be widely used on the motor vehicle.
Claims (9)
1. electric vehicle lithium battery super capacitor composite power source control device, include box body, be provided with dust cap on the described box body, it is characterized in that: be provided with the battery-powered assembly in the described box body, the anodal port of described battery-powered assembly is connected with the input of operation control assembly, the output of described operation control assembly is connected with the engine control port by sense of current control assembly, described engine control port is connected with the input of DC boosting assembly by the field effect transistor accessory part, the output of described DC boosting assembly connects the input of stabipack, then the output of described stabipack is connected to ultracapacitor by sense of current control assembly, described operation control assembly is provided with auxiliary control port, and described auxiliary control port connects the negative pole port of battery-powered assembly by ultracapacitor.
2. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1, it is characterized in that: described operation control assembly includes the energy resource supply port, described energy resource supply port one side links to each other with the battery-powered assembly, described energy resource supply port opposite side is connected with the input of circuit control module, the output of described circuit control module is connected into the output of operation control assembly, described circuit control module includes the electric current adjusting part, is connected with the N-type metal-oxide-semiconductor field effect t on the described electric current adjusting part.
3. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 2 is characterized in that: be provided with auxiliary current direction control module in the described operation control assembly.
4. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1, it is characterized in that: described ultracapacitor is composed in series by the monomer super capacitor, or is comprised of monomer super capacitor institute in parallel.
5. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1, it is characterized in that: described battery-powered assembly includes the battery accommodating box, is provided with the lithium ion battery group that the cell series connection consists of in the described battery accommodating box; Or be provided with the cell lithium ion battery group that consists of in parallel in the described battery accommodating box.
6. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1, it is characterized in that: described box body side is provided with ventilation hole.
7. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1 is characterized in that: be provided with radiating subassembly in the described box body.
8. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 7, it is characterized in that: described radiating subassembly includes fin, is provided with radiator fan on the described fin.
9. a kind of electric vehicle lithium battery super capacitor composite power source control device according to claim 1 is characterized in that: be provided with reinforcement in the described box body.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103595090A (en) * | 2013-10-23 | 2014-02-19 | 合肥西玛科电子有限公司 | Self-intervention auxiliary control device of automobile battery |
| CN103887833A (en) * | 2012-12-20 | 2014-06-25 | 苏州能斯特新能源有限公司 | Control device suitable for lithium battery and supercapacitor composite power source |
| CN104600827A (en) * | 2014-12-05 | 2015-05-06 | 超威电源有限公司 | Composite power supply and control method thereof and electric vehicle with same |
| CN105244978A (en) * | 2015-11-24 | 2016-01-13 | 深圳飞马机器人科技有限公司 | Unmanned aerial vehicle battery management system and method |
| CN105609317A (en) * | 2015-11-25 | 2016-05-25 | 上海展枭新能源科技有限公司 | Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device |
| CN107895990A (en) * | 2017-12-27 | 2018-04-10 | 郑州瑞源泰科技有限公司 | Intelligent ultracapacitor group power supply |
| CN111834572A (en) * | 2020-07-21 | 2020-10-27 | 洛阳润禾测控技术有限公司 | Novel automobile storage battery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887833A (en) * | 2012-12-20 | 2014-06-25 | 苏州能斯特新能源有限公司 | Control device suitable for lithium battery and supercapacitor composite power source |
| CN103595090A (en) * | 2013-10-23 | 2014-02-19 | 合肥西玛科电子有限公司 | Self-intervention auxiliary control device of automobile battery |
| CN104600827A (en) * | 2014-12-05 | 2015-05-06 | 超威电源有限公司 | Composite power supply and control method thereof and electric vehicle with same |
| CN104600827B (en) * | 2014-12-05 | 2017-01-18 | 超威电源有限公司 | Composite power supply and control method thereof and electric vehicle with same |
| CN105244978A (en) * | 2015-11-24 | 2016-01-13 | 深圳飞马机器人科技有限公司 | Unmanned aerial vehicle battery management system and method |
| CN105609317A (en) * | 2015-11-25 | 2016-05-25 | 上海展枭新能源科技有限公司 | Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device |
| CN105609317B (en) * | 2015-11-25 | 2018-11-02 | 上海展枭新能源科技有限公司 | A kind of acceleration energy packet, pure electric automobile supply unit and its acceleration control method based on lithium-ion capacitor |
| CN107895990A (en) * | 2017-12-27 | 2018-04-10 | 郑州瑞源泰科技有限公司 | Intelligent ultracapacitor group power supply |
| CN111834572A (en) * | 2020-07-21 | 2020-10-27 | 洛阳润禾测控技术有限公司 | Novel automobile storage battery |
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Application publication date: 20130320 |