CN105609317A - Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device - Google Patents
Acceleration energy pack based on lithium ion capacitor, power supply device of BEV (Battery Electric Vehicle) and acceleration control method of power supply device Download PDFInfo
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- CN105609317A CN105609317A CN201510834487.8A CN201510834487A CN105609317A CN 105609317 A CN105609317 A CN 105609317A CN 201510834487 A CN201510834487 A CN 201510834487A CN 105609317 A CN105609317 A CN 105609317A
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- power supply
- ion capacitor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/08—Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
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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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
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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
- Y02E60/13—Energy storage using capacitors
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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
- 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
Abstract
The invention discloses an acceleration energy pack based on a lithium ion capacitor. The acceleration energy pack mainly comprises a lithium ion capacitor module, a unidirectional DC power supply and a second DC relay, the lithium ion capacitor module is provided with three terminals including two anode terminals and one cathode terminal, and the two anode terminals are connected with the anode end of the unidirectional DC power supply and the second DC relay respectively. The invention also discloses a BEV power supply device with the energy pack and an acceleration control method of the power supply device. The acceleration energy pack can prevent a battery from frequent power supply of instant high power, the using condition of the power battery is improved, the service life of the power battery is prolonged, and the charging/discharging circulation performance of the power battery within the service life is improved.
Description
Technical field
The present invention relates to a kind of acceleration energy bag based on lithium-ion capacitor, adopt the pure electric automobile supply unit of this acceleration energy bag and add speed control method, belong to electric motor car energy technical field.
Background technology
Due to environmental pollution and non-regeneration energy crisis, electric automobile has become a kind of important green traffic instrument gradually, and it has the outstanding features such as energy-conservation, low noise, reduction discharge. Electric automobile electrokinetic cell used is not with to start power supply generally identical, and it is to continue heavy-current discharge (start, accelerate or climbing) with the medium current of long period. Therefore to the basic demand of electrokinetic cell be: high-energy-density, high power density, longer cycle life, charge-discharge performance, price are low etc. preferably. (reference: " power technology ", electric motor car, electric vehicle power supply and development strategy thereof, thunder thunder etc., calendar year 2001s 25 volume)
The power supply that is applied at present electric automobile is mainly divided into two classes, and a class is single power supply system, for example: and lead-acid accumulator, lithium ion battery, ultracapacitor etc., such as patent: CN103057407A, CN204315642U, CN201559546U; Another kind of composite power source, for example: battery-ultracapacitor, dynamics battery-super capacitance device, high-energy electrokinetic cell-high power electrokinetic cell etc., such as patent: CN102501778A, CN104015626A, CN201457108U.
But, for market-oriented pure electric automobile, be mainly to drive with electrokinetic cell, being aided with battery is the power supply of car internal burden; High-grade electric motor car is also equipped with start stop system.
Ultracapacitor is the energy-storage travelling wave tube with features such as high-specific-power, high-energy-density, energy storage are many, and there is low internal resistance, and efficiency for charge-discharge is high, and the advantage such as have extended cycle life, can with the combinations such as other electrokinetic cells, for startup, acceleration and the climbing of electric motor car.
And for the hybrid power system of dynamics battery-super capacitance device, the heaviness of ultracapacitor, volume cause greatly this mode to be difficult to be applied on a large scale pure electric automobile. The road complexity of travelling, frequently gives it the gun and causes electrokinetic cell instantaneous high power discharge frequently, and the performance of electrokinetic cell is had to very large irreversible impact, for example, make its service life cycle shortening, discharge capacity minimizing, internal resistance increase.
Summary of the invention
Technical problem to be solved by this invention is, a kind of acceleration energy bag based on lithium-ion capacitor is provided, adopt the pure electric automobile supply unit of this energy bag and add speed control method, irremediable impact electrokinetic cell being caused to eliminate the frequent acceleration of pure electric automobile.
Lithium-ion capacitor adopts lithium ion battery and ultracapacitor mixed structure, its anodal positive pole that adopts ultracapacitor, negative pole adopts the negative pole structure of lithium ion battery, has the characteristic of high power, long-life characteristics and the lithium ion battery high-energy-density (its energy density is much larger than lead-acid accumulator) of ultracapacitor concurrently. Itself there is very high voltage hold facility, 25 DEG C of placements of normal temperature 3 months, voltage drop≤5%; The safety in operation of wide serviceability temperature scope, reliability.
The present invention is not changing on the basis of existing pure electric automobile structure, a kind of acceleration energy bag based on lithium-ion capacitor has been proposed, mainly comprise lithium-ion capacitor module, Unidirectional direct-current power supply and the second DC relay, described lithium-ion capacitor module is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to respectively positive terminal and second DC relay of Unidirectional direct-current power supply.
The invention allows for and a kind ofly adopt the above acceleration energy bag based on lithium-ion capacitor for pure electric automobile supply unit, comprise the electrokinetic cell, the first DC relay, inverter and the three phase electric machine that connect and can form successively the second closed-loop path,
Lithium-ion capacitor module in described acceleration energy bag is connected with three phase electric machine by the second DC relay, inverter successively, can form the first closed-loop path;
Described electrokinetic cell is connected with described lithium-ion capacitor module by Unidirectional direct-current power supply, can form the 3rd closed-loop path.
Further, described Unidirectional direct-current power turn-on direction is from electrokinetic cell to lithium-ion capacitor module.
The invention allows for the control method that adopts described pure electric automobile supply unit to accelerate automobile, comprise the steps:
(1), receive the signal for faster that electromobile pedal sends, the first DC relay disconnection, the second closed-loop path disconnection;
(2), in step (1), the second DC relay closure, the first closed-loop path conducting, inverter is converted to alternating voltage by the DC voltage of lithium-ion capacitor module and makes its fast turn-around in short-term for three phase electric machine provides high-power voltage, for electric automobile accelerates to provide powerful power;
(3) when the signal for faster of electromobile pedal is cancelled, the second DC relay disconnects, and the first closed-loop path disconnects;
(4), in step (3), the first DC relay closure, the second closed-loop path conducting, inverter is converted to alternating voltage for three phase electric machine provides lasting long time running by the DC voltage of electrokinetic cell, travels power is provided for electric automobile speed stabilizing;
(5) when, electric automobile moves without signal for faster, the voltage that lithium-ion capacitor module detected when Unidirectional direct-current power supply is lower than providing a pure electric automobile to accelerate required minimum voltage requirement, Unidirectional direct-current power supply is by the 3rd closed-loop path conducting, and to transfer the low-voltage dc voltage of electrokinetic cell to high-voltage dc voltage be that lithium-ion capacitor module charges to rated voltage, then Unidirectional direct-current power supply disconnects the 3rd closed-loop path. The 3rd closed-loop path is mainly used in lithium-ion capacitor group to charge.
Adopt the supply unit of the pure electric automobile that acceleration energy bag of the present invention obtains, can avoid the instantaneous powerful power supply frequently of electrokinetic cell, effectively improve the service condition of electrokinetic cell, extend the service life of electrokinetic cell, improved the charge-discharge performance of electrokinetic cell within its service life.
Compared with ultracapacitor, lithium-ion capacitor has the characteristic of high power density and high-energy-density, greatly reduce in the amount that meets lithium-ion capacitor required under the condition of identical acceleration pure electric automobile, required volume and weight is all far smaller than ultracapacitor, is therefore designed to removable acceleration energy bag. This acceleration energy bag weight is few, volume is little, is easy to carry.
In addition, due to the high voltage hold facility of lithium-ion capacitor, in some months, do not use, also still have very high voltage to meet the acceleration environment of pure electric automobile.
Brief description of the drawings
Fig. 1 is the line circuit schematic diagram of acceleration energy bag of the present invention;
Fig. 2 is the line circuit schematic diagram of the supply unit of original pure electric automobile;
Fig. 3 is the line circuit figure that adopts the supply unit of the pure electric automobile of acceleration energy bag of the present invention.
In figure: electrokinetic cell BAT, DC relay EV1, EV2, inverter DC/AC, three phase electric machine MOTOR, Unidirectional direct-current power supply DC/DC, lithium-ion capacitor module LIC.
Detailed description of the invention
Embodiment 1: the acceleration energy bag based on lithium-ion capacitor of the present invention is as shown in Figure 1, mainly comprise lithium-ion capacitor module LIC, Unidirectional direct-current power supply DC/DC, the second DC relay EV2, described lithium-ion capacitor module LIC is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to respectively Unidirectional direct-current power supply DC/DC and the second DC relay EV2.
Embodiment 2: the original supply unit of pure electric automobile is as shown in Figure 2, comprise the electrokinetic cell BAT, the first DC relay EV1, inverter DC/AC and the three phase electric machine MOTOR that connect and can form successively the second closed-loop path, acceleration energy bag described in employing embodiment 1 is according to being connected to as shown in Figure 3 original supply unit, formed pure electric automobile supply unit of the present invention
Wherein, lithium-ion capacitor module LIC is connected with three phase electric machine MOTOR by the second DC relay EV2, inverter DC/AC successively, and this is communicated with formation the first closed-loop path;
Electrokinetic cell BAT is connected with three phase electric machine MOTOR by the first DC relay EV1, inverter DC/AC successively, is communicated with and forms the second closed-loop path between this;
Electrokinetic cell BAT is connected with lithium-ion capacitor module LIC by Unidirectional direct-current power supply DC/DC, after being communicated with, forms the 3rd closed-loop path, and Unidirectional direct-current power supply DC/DC conducting direction is from electrokinetic cell BAT to lithium-ion capacitor module LIC.
Embodiment 3: the pure electric automobile supply unit described in employing embodiment 2, to the acceleration control procedure of electric automobile is:
(1), receive the signal for faster that electromobile pedal sends, the first DC relay EV1 disconnection, the second closed-loop path disconnection that electrokinetic cell BAT forms by the first DC relay EV1, inverter DC/AC and three phase electric machine MOTOR;
(2), in step (1), the second DC relay EV2 closure, the first closed-loop path conducting that lithium-ion capacitor LIC forms by the second DC relay EV2, inverter DC/AC and three phase electric machine MOTOR, inverter DC/AC is converted to alternating voltage by the DC voltage of lithium-ion capacitor module LIC and makes its fast turn-around in short-term for three phase electric machine MOTOR provides high-power voltage, thereby accelerates to provide powerful power for electric automobile;
(3) when the signal for faster of electromobile pedal is cancelled, the second DC relay EV2 disconnects, and the first closed-loop path disconnects;
(4), in step (3), the first DC relay EV1 closure, electrokinetic cell BAT forms the second closed-loop path of conducting again by the first DC relay EV1, inverter DC/AC and three phase electric machine MOTOR, inverter DC/AC is converted to alternating voltage for three phase electric machine MOTOR provides lasting long time running by the DC voltage of electrokinetic cell BAT, travels power is provided for the long-time speed stabilizing of electric automobile;
(5) when, electric automobile moves without signal for faster, the voltage that lithium-ion capacitor module LIC detected as Unidirectional direct-current power supply DC/DC is lower than providing a pure electric automobile to accelerate required minimum voltage requirement, Unidirectional direct-current power supply DC/DC is by the 3rd closed-loop path conducting, and to transfer the low-voltage dc voltage of electrokinetic cell BAT to high-voltage dc voltage be that lithium-ion capacitor module LIC charges to rated voltage, then Unidirectional direct-current power supply DC/DC disconnects the 3rd closed-loop path.
The high voltage hold facility of lithium-ion capacitor, can make this energy accelerated packet shelve after some months, still can provide larger voltage to carry out high-power power supply to three phase electric machine MOTOR.
Claims (4)
1. the acceleration energy bag based on lithium-ion capacitor, it is characterized in that: this acceleration energy bag mainly comprises lithium-ion capacitor module, Unidirectional direct-current power supply and the second DC relay, described lithium-ion capacitor module is provided with three terminals, comprise two positive terminals and a negative terminals, wherein two positive terminals are connected to respectively positive terminal and second DC relay of Unidirectional direct-current power supply.
2. adopt a pure electric automobile supply unit for acceleration energy bag described in claim 1, comprise the electrokinetic cell, the first DC relay, inverter and the three phase electric machine that connect and can form successively the second closed-loop path, it is characterized in that:
Lithium-ion capacitor module in described acceleration energy bag is connected with three phase electric machine by the second DC relay, inverter successively, can form the first closed-loop path;
Described electrokinetic cell is connected with described lithium-ion capacitor module by Unidirectional direct-current power supply, can form the 3rd closed-loop path.
3. the pure electric automobile supply unit of acceleration energy bag according to claim 2, is characterized in that: described Unidirectional direct-current power turn-on direction is for from electrokinetic cell to lithium-ion capacitor module.
4. the control method that the pure electric automobile supply unit described in employing claim 2 or 3 any one claims accelerates automobile, is characterized in that the method comprises the steps:
(1), receive the signal for faster that electromobile pedal sends, the first DC relay disconnection, the second closed-loop path disconnection;
(2), in step (1), the second DC relay closure, the first closed-loop path conducting, inverter is converted to alternating voltage by the DC voltage of lithium-ion capacitor module and makes its fast turn-around in short-term for three phase electric machine provides high-power voltage;
(3) when the signal for faster of electromobile pedal is cancelled, the second DC relay disconnects, and the first closed-loop path disconnects;
(4), in step (3), the first DC relay closure, the second closed-loop path conducting, inverter is converted to alternating voltage by the DC voltage of electrokinetic cell and provides lasting long time running for three phase electric machine;
(5) when, electric automobile moves without signal for faster, the voltage that lithium-ion capacitor module detected when Unidirectional direct-current power supply is lower than providing a pure electric automobile to accelerate required minimum voltage requirement, Unidirectional direct-current power supply is by the 3rd closed-loop path conducting, and the low-voltage dc voltage of electrokinetic cell is converted to high-voltage dc voltage is that lithium-ion capacitor module charges to rated voltage, then Unidirectional direct-current power supply disconnects the 3rd closed-loop path.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510834487.8A CN105609317B (en) | 2015-11-25 | 2015-11-25 | A kind of acceleration energy packet, pure electric automobile supply unit and its acceleration control method based on lithium-ion capacitor |
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| CN201510834487.8A CN105609317B (en) | 2015-11-25 | 2015-11-25 | A kind of acceleration energy packet, pure electric automobile supply unit and its acceleration control method based on lithium-ion capacitor |
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| CN105609317A true CN105609317A (en) | 2016-05-25 |
| CN105609317B CN105609317B (en) | 2018-11-02 |
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| CN103072492A (en) * | 2013-01-28 | 2013-05-01 | 吉林大学 | Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system |
| CN203780331U (en) * | 2014-04-08 | 2014-08-20 | 嘉兴敏凯汽车零部件有限公司 | Electric vehicle start acceleration control system |
| CN205194527U (en) * | 2015-11-25 | 2016-04-27 | 上海展枭新能源科技有限公司 | Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor |
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2015
- 2015-11-25 CN CN201510834487.8A patent/CN105609317B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013059223A (en) * | 2011-09-09 | 2013-03-28 | Mazda Motor Corp | Hybrid power supply type electric vehicle |
| CN102983608A (en) * | 2012-12-17 | 2013-03-20 | 苏州大学 | Composite lithium battery and supercapacitor power supply control device for electromobile |
| CN103010045A (en) * | 2012-12-26 | 2013-04-03 | 天津市松正电动汽车技术股份有限公司 | Dual-power new energy automobile driving device and control method thereof |
| CN103072492A (en) * | 2013-01-28 | 2013-05-01 | 吉林大学 | Active control type hybrid power system for pure electric bus and control method of active control type hybrid power system |
| CN203780331U (en) * | 2014-04-08 | 2014-08-20 | 嘉兴敏凯汽车零部件有限公司 | Electric vehicle start acceleration control system |
| CN205194527U (en) * | 2015-11-25 | 2016-04-27 | 上海展枭新能源科技有限公司 | Energy package, Pure electric vehicles power supply unit accelerate based on lithium ion capacitor |
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Effective date of registration: 20220615 Address after: 333000 north of Zhihang Road, high tech Zone, Changjiang District, Jingdezhen City, Jiangxi Province (within Jingdezhen Weihang Technology Co., Ltd.) Patentee after: Jiangxi Zhanxiao New Energy Technology Co.,Ltd. Address before: 201199 room C307, huilide Industrial Park, No. 1-7, Lane 1356, Xinyuan Road, Minhang District, Shanghai Patentee before: SHANGHAI CAPENERGY TECHNOLOGY Co.,Ltd. |