CN105730259A - Power battery system for electric automobile and electric automobile with power battery system - Google Patents
Power battery system for electric automobile and electric automobile with power battery system Download PDFInfo
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- CN105730259A CN105730259A CN201410758989.2A CN201410758989A CN105730259A CN 105730259 A CN105730259 A CN 105730259A CN 201410758989 A CN201410758989 A CN 201410758989A CN 105730259 A CN105730259 A CN 105730259A
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- electric automobile
- electrokinetic cell
- control module
- switch
- cell system
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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 a power battery system for an electric automobile. The power battery system comprises a power battery, a first DC-DC converter, a first switch and a control module, wherein the power battery is provided with a first positive electrode end, a second positive electrode end and a negative electrode end; the first DC-DC converter is connected with the first positive electrode end and used for converting first direct current output by the power battery to output second direct current, the voltage of the second direct current is smaller than that of the first direct current, and the second direct current serves as a start power source of the electric automobile; and the control module is connected with the first DC-DC converter through the first switch, and when the first switch is turned on, the start power source supplies power to the control module, so that the control module controls the electric automobile to be started. By the adoption of the power battery system, a low-voltage storage battery does not need to be used as the start power source, system design is simplified, cost is reduced, and it can be guaranteed that the electric automobile is normally started at the low temperature. The invention further discloses the electric automobile.
Description
Technical field
The present invention relates to technical field of new energy, particularly to electrokinetic cell system and a kind of electric automobile with this electrokinetic cell system of a kind of electric automobile.
Background technology
Existing new-energy automobile includes pure EV (ElectricVehicle, pure electric automobile), HEV (HybridElectricVehicle, hybrid vehicle), PHEV (Plug-inHybridElectricVehicle, plug-in hybrid-power automobile) etc..The electrokinetic cell system of these automobiles all comprises for providing the high voltage power battery of power and being used as to start power supply and to the 12V accumulator that low-voltage load is powered, and what even have also comprises accessory power supply, to ensure to provide normal operation and the operation of automobile.
But, the design comparison of the electrokinetic cell system of these automobiles is complicated, and circuit is generally also at connected state when automobile parking, and quiescent dissipation is bigger, it is easy to the situation of automobile starting difficulty occur at cold winter.It addition, in this electrokinetic cell system, it is necessary to 12V accumulator is as starting power supply, and not only cost is high, and needs space big, brings difficulty to the design of electrokinetic cell system, in addition traditional storage battery restricted lifetime, frequently changes accumulator and cost also can be made to increase.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in above-mentioned technology.
For this, it is an object of the present invention to propose the electrokinetic cell system of a kind of electric automobile, it is not necessary to low tension battery as start power supply, not only simplify system design, reduce cost, moreover it is possible to ensure electric automobile normally start at low temperatures.
Further object is that and propose a kind of electric automobile.
For reaching above-mentioned purpose, the electrokinetic cell system of a kind of electric automobile that one aspect of the present invention embodiment proposes, including: electrokinetic cell, described electrokinetic cell has the first positive terminal, the second positive terminal and negative pole end；First dc-dc, described first dc-dc is connected with described first positive terminal, described first dc-dc is changed to export the second unidirectional current for the first unidirectional current that described electrokinetic cell is exported, wherein, described second galvanic voltage is less than described first galvanic voltage, and described second unidirectional current is as the startup power supply of described electric automobile；First switch；Controlling module, described control module is connected with described first dc-dc by described first switch, and wherein, when described first switch Guan Bi, described startup power supply gives described control module for power supply, so that described control module controls described electric automobile and starts.
The electrokinetic cell system of electric automobile according to embodiments of the present invention, the first unidirectional current electrokinetic cell exported by the first dc-dc is changed to export the second unidirectional current, startup power supply as electric automobile, thus the startup power supply eliminated on conventional electric automobile namely without low tension battery as start power supply, not only simplify system design, reduce cost, additionally owing to the energy of electrokinetic cell is high, by the first exportable bigger power of dc-dc, thus all exportable enough power starts electric automobile under low temperature even-30 DEG C of ultralow temperature such as grade, ensure that electric automobile normally starts at low temperatures.
According to one embodiment of present invention, the electrokinetic cell system of described electric automobile, also include: second switch, described second switch closes under the control of described control module or disconnects；Second dc-dc, described second dc-dc is connected with described second positive terminal by described second switch, wherein, when described second switch closes, described second dc-dc is changed for the 3rd unidirectional current that described electrokinetic cell is exported and is powered with the dynamical system to described electric automobile.
According to one embodiment of present invention, described first switch is associated with the initiation key system of described electric automobile, wherein, when described initiation key system receives the enabling signal of described electric automobile, and described first switch Guan Bi.
According to one embodiment of present invention, when described electric automobile is hybrid vehicle, described control module is also connected with the starter motor in described hybrid vehicle, wherein, when described control module is when receiving HEV enabling signal, described control module is controlled described electrokinetic cell and is powered to described starter motor by described first dc-dc, so that described starter motor drags the engine start in described hybrid vehicle.
According to one embodiment of present invention, when described control module receives EV enabling signal, described control module controls described second switch Guan Bi, so that described electrokinetic cell powers to described dynamical system by described second dc-dc.
According to one embodiment of present invention, the second unidirectional current of described first dc-dc output is additionally operable to power to the low-voltage load on described electric automobile.
Specifically, according to the present invention example, described second galvanic voltage can be 12V.
For reaching above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of electric automobile, and it includes the electrokinetic cell system of above-mentioned electric automobile.
Electric automobile according to embodiments of the present invention, eliminate the startup power supply on conventional electric automobile namely without low tension battery as start power supply, not only simplify electrokinetic cell system design, reduce cost, additionally owing to the energy of electrokinetic cell is high, by the first exportable bigger power of dc-dc, thus all exportable enough power realizes electric automobile startup under low temperature even-30 DEG C of ultralow temperature such as grade, fully meet the needs of user.
Wherein, described electric automobile can be pure electric automobile or hybrid vehicle.
Accompanying drawing explanation
Fig. 1 is the block diagram of the electrokinetic cell system of electric automobile according to embodiments of the present invention.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Describe the electrokinetic cell system of electric automobile according to embodiments of the present invention with reference to the accompanying drawings and there is the electric automobile of this electrokinetic cell system.
Fig. 1 is the block diagram of the electrokinetic cell system of electric automobile according to embodiments of the present invention.As it is shown in figure 1, the electrokinetic cell system of this electric automobile includes: electrokinetic cell the 10, first dc-dc 20, first switchs K1 and controls module 30.
As it is shown in figure 1, electrokinetic cell 10 has the first positive terminal the 101, second positive terminal 102 and negative pole end 103.First dc-dc 20 is connected with the first positive terminal 101, first dc-dc 20 is for changing to export the second unidirectional current to the first unidirectional current of electrokinetic cell 10 output, wherein, described second galvanic voltage is less than described first galvanic voltage, and described second unidirectional current is as the startup power supply of described electric automobile.Control module 30 to be connected by the first switch K1 and the first dc-dc 20, wherein, when first switchs K1 Guan Bi, described startup power supply i.e. the second direct current of the first dc-dc 20 output supplies electricity to control module 30 and powers, and starts so that control module 30 controls described electric automobile.
According to one embodiment of present invention, as it is shown in figure 1, the electrokinetic cell system of above-mentioned electric automobile also includes: second switch K2 and the second dc-dc 40.Second switch K2 is Guan Bi or disconnection under the control controlling module 30, second dc-dc 40 is connected by second switch K2 and the second positive terminal 102, wherein, when second switch K2 closes, the second dc-dc 40 is changed to power to the dynamical system 50 of electric automobile for the 3rd unidirectional current that described electrokinetic cell is exported.
Further, the second unidirectional current of the first dc-dc 20 output is additionally operable to power to the low-voltage load 60 on described electric automobile.
Specifically, electrokinetic cell 10 is internal can contain three poles, and one is negative pole, and two is positive pole.Wherein, one positive pole and the first dc-dc 20 are connected, power to respectively by the first dc-dc 20 control module 30 and low-voltage load 60, another positive pole is connected by second switch K2 and the second dc-dc 40, when second switch closes, powered for dynamical system 50 by the second dc-dc 40.
Wherein, the first switch K1 is associated with the initiation key system of electric automobile, and, when described initiation key system receives the enabling signal of described electric automobile, the first switch K1 Guan Bi, control module 30 and namely receive sparking signal.It is to say, the first switch K1 can be associated with the ignition switch on electric automobile, when ignition switch is got to ON shelves by car key by user, the first switch K1 Guan Bi.
According to one embodiment of present invention, when described electric automobile is hybrid vehicle, control module 30 to be also connected with the starter motor 70 in described hybrid vehicle, wherein, when controlling module 30 when receiving HEV (hybrid power) enabling signal, control module 30 is controlled electrokinetic cell 10 and is powered to starter motor 70 by the first dc-dc 20, so that starter motor 70 drags the engine start in described hybrid vehicle.Namely say, control module 30 demand according to starter motor 70 when receiving HEV enabling signal, control the first dc-dc 20 and power to starter motor 70, drag electromotor, it is achieved sparking.
And, owing to the energy of electrokinetic cell 10 is higher, when electrokinetic cell 10 powers to starter motor 70 by the first dc-dc 20, exportable bigger power, more can be effectively improved the sparking performance of electric automobile, wait at-30 DEG C and under ultralow temperature, also can realize electric automobile startup, it is ensured that electric automobile can normally start at low ambient temperatures.
According to another embodiment of the invention, when controlling module 30 and receiving EV (pure electronic) enabling signal, control module 30 and control second switch K2 Guan Bi, so that electrokinetic cell 10 powers to dynamical system 50 by the second dc-dc 40, thus starting electric automobile.
Therefore say, in an embodiment of the present invention, only by a dc-dc, just can replace starting power supply, thus the low tension battery eliminated on conventional electric automobile, by the first dc-dc and control module, can directly powering for starter motor, simplified system designs, and reduces cost.
In an example of the present invention, described second galvanic voltage is 12V.
The electrokinetic cell system of electric automobile according to embodiments of the present invention, the first unidirectional current electrokinetic cell exported by the first dc-dc is changed to export the second unidirectional current, startup power supply as electric automobile, thus the startup power supply eliminated on conventional electric automobile namely without low tension battery as start power supply, not only simplify system design, reduce cost, additionally owing to the energy of electrokinetic cell is high, by the first exportable bigger power of dc-dc, thus all exportable enough power starts electric automobile under low temperature even-30 DEG C of ultralow temperature such as grade, ensure that electric automobile normally starts at low temperatures.
Additionally, embodiments of the invention also proposed a kind of electric automobile, it includes the electrokinetic cell system of above-mentioned electric automobile.
Wherein, described electric automobile can be pure electric automobile or hybrid vehicle.
Electric automobile according to embodiments of the present invention, eliminate the startup power supply on conventional electric automobile namely without low tension battery as start power supply, not only simplify electrokinetic cell system design, reduce cost, additionally owing to the energy of electrokinetic cell is high, by the first exportable bigger power of dc-dc, thus all exportable enough power realizes electric automobile startup under low temperature even-30 DEG C of ultralow temperature such as grade, fully meet the needs of user.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include one or more these features.In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner.Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (9)
1. the electrokinetic cell system of an electric automobile, it is characterised in that including:
Electrokinetic cell, described electrokinetic cell has the first positive terminal, the second positive terminal and negative pole end；
First dc-dc, described first dc-dc is connected with described first positive terminal, described first dc-dc is changed to export the second unidirectional current for the first unidirectional current that described electrokinetic cell is exported, wherein, described second galvanic voltage is less than described first galvanic voltage, and described second unidirectional current is as the startup power supply of described electric automobile；
First switch；
Controlling module, described control module is connected with described first dc-dc by described first switch, and wherein, when described first switch Guan Bi, described startup power supply gives described control module for power supply, so that described control module controls described electric automobile and starts.
2. the electrokinetic cell system of electric automobile according to claim 1, it is characterised in that also include:
Second switch, described second switch closes under the control of described control module or disconnects；
Second dc-dc, described second dc-dc is connected with described second positive terminal by described second switch, wherein, when described second switch closes, described second dc-dc is changed for the 3rd unidirectional current that described electrokinetic cell is exported and is powered with the dynamical system to described electric automobile.
3. the electrokinetic cell system of electric automobile according to claim 1 and 2, it is characterized in that, described first switch is associated with the initiation key system of described electric automobile, wherein, when described initiation key system receives the enabling signal of described electric automobile, described first switch Guan Bi.
4. the electrokinetic cell system of electric automobile according to claim 3, it is characterized in that, when described electric automobile is hybrid vehicle, described control module is also connected with the starter motor in described hybrid vehicle, wherein, when described control module is when receiving hybrid power HEV enabling signal, described control module is controlled described electrokinetic cell and is powered to described starter motor by described first dc-dc, so that described starter motor drags the engine start in described hybrid vehicle.
5. the electrokinetic cell system of electric automobile according to claim 2, it is characterized in that, when described control module receives pure electronic EV enabling signal, described control module controls described second switch Guan Bi, so that described electrokinetic cell powers to described dynamical system by described second dc-dc.
6. the electrokinetic cell system of electric automobile according to claim 1, it is characterised in that the second unidirectional current of described first dc-dc output is additionally operable to power to the low-voltage load on described electric automobile.
7. the electrokinetic cell system of electric automobile according to claim 1, it is characterised in that described second galvanic voltage is 12V.
8. an electric automobile, it is characterised in that include the electrokinetic cell system of electric automobile according to any one of claim 1-7.
9. electric automobile according to claim 8, it is characterised in that described electric automobile is pure electric automobile or hybrid vehicle.
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| CN201410758989.2A CN105730259B (en) | 2014-12-10 | 2014-12-10 | The electrokinetic cell system of electric vehicle and electric vehicle with it |
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| CN201410758989.2A CN105730259B (en) | 2014-12-10 | 2014-12-10 | The electrokinetic cell system of electric vehicle and electric vehicle with it |
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| CN105730259B CN105730259B (en) | 2018-09-11 |
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| CN108162764A (en) * | 2017-11-27 | 2018-06-15 | 广东亿鼎新能源汽车有限公司 | A kind of pure electric automobile shares power-supply system |
| CN108340856A (en) * | 2018-02-09 | 2018-07-31 | 合肥巨动力系统有限公司 | A kind of new-energy automobile power supply system for cancelling A-battery |
| CN110103730A (en) * | 2018-01-10 | 2019-08-09 | 深圳市普兰德储能技术有限公司 | A kind of electric vehicle power supply system and electric vehicle |
| CN110103850A (en) * | 2019-05-07 | 2019-08-09 | 桑顿新能源科技有限公司 | A kind of battery system for preventing vehicle-mounted low-tension supply power shortage |
| CN110291706A (en) * | 2017-02-08 | 2019-09-27 | 三星Sdi株式会社 | Power supply unit and battery pack including power supply unit |
| CN110450675A (en) * | 2019-07-25 | 2019-11-15 | 桑顿新能源科技(长沙)有限公司 | A kind of electrokinetic cell system, control method and electric car |
| CN110497796A (en) * | 2019-09-25 | 2019-11-26 | 安徽工程大学 | A kind of low-voltage power supply system and its control method of new-energy automobile |
| CN113561849A (en) * | 2021-07-27 | 2021-10-29 | 新石器慧通（北京）科技有限公司 | Power supply control system and unmanned vehicle |
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| CN113904409A (en) * | 2021-10-09 | 2022-01-07 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
| CN115384326A (en) * | 2022-08-23 | 2022-11-25 | 珠海英搏尔电气股份有限公司 | Power supply circuit, power supply method and power supply device of electric automobile and electric automobile |
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| CN108340856A (en) * | 2018-02-09 | 2018-07-31 | 合肥巨动力系统有限公司 | A kind of new-energy automobile power supply system for cancelling A-battery |
| CN110103850A (en) * | 2019-05-07 | 2019-08-09 | 桑顿新能源科技有限公司 | A kind of battery system for preventing vehicle-mounted low-tension supply power shortage |
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| CN110450675A (en) * | 2019-07-25 | 2019-11-15 | 桑顿新能源科技(长沙)有限公司 | A kind of electrokinetic cell system, control method and electric car |
| CN110497796A (en) * | 2019-09-25 | 2019-11-26 | 安徽工程大学 | A kind of low-voltage power supply system and its control method of new-energy automobile |
| CN113561849A (en) * | 2021-07-27 | 2021-10-29 | 新石器慧通（北京）科技有限公司 | Power supply control system and unmanned vehicle |
| CN113697015A (en) * | 2021-08-27 | 2021-11-26 | 江苏爱玛车业科技有限公司 | Starting system and method of electric vehicle |
| CN113697015B (en) * | 2021-08-27 | 2022-07-22 | 江苏爱玛车业科技有限公司 | Starting system and method of electric vehicle |
| CN113895381A (en) * | 2021-10-09 | 2022-01-07 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
| CN113904409A (en) * | 2021-10-09 | 2022-01-07 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
| CN115384326A (en) * | 2022-08-23 | 2022-11-25 | 珠海英搏尔电气股份有限公司 | Power supply circuit, power supply method and power supply device of electric automobile and electric automobile |
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| CN105730259B (en) | 2018-09-11 |
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