CN104935059A - Low-temperature charging method and charging equipment of electric automobile - Google Patents
Low-temperature charging method and charging equipment of electric automobile Download PDFInfo
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- CN104935059A CN104935059A CN201510421622.6A CN201510421622A CN104935059A CN 104935059 A CN104935059 A CN 104935059A CN 201510421622 A CN201510421622 A CN 201510421622A CN 104935059 A CN104935059 A CN 104935059A
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- charging
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- electric automobile
- temperature
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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
Abstract
A low-temperature charging method provided by the present invention is normal charging with circuit oscillation. On the condition of low temperature, an electric automobile normally charges for a certain period of time, then a charging circuit is disconnected and an oscillation circuit is connected, after a battery oscillates for a certain period of time, the oscillation circuit is disconnected and the charging circuit is connected, after that, the electric automobile normally charges for a certain period of time, then the charging circuit is disconnected and the oscillation circuit is connected. And the cycle repeats, low-temperature charging of the electric automobile is achieved.
Description
Technical field
The present invention relates to low-temperature charging method and the charging device of charging electric vehicle method and charging device, particularly electric automobile.
Background technology
Development of Electric Vehicles is very fast, but its charging problems is the bottleneck problem limiting its development always, and the problem of charging electric vehicle is a lot, and wherein low temperature charging problems is the weakness of electric automobile always.The charging of electric automobile is substantially in outdoor, and the temperature of winter makes outdoor is lower, usually occurs that electric automobile cannot charge or charge discontented.Solution mainly contains two kinds, and one is arrange heater in power brick inside, and two is change charging strategy.Arranging charging device one in power brick inside is the cost increasing power brick, and two is the weight increasing power brick, and three is probability that increase power brick breaks down.Change charging strategy and mainly contain current-limiting charge, pressure limiting charging, pulse current charge etc.Current-limiting charge causes the charging interval elongated, and pressure limiting charging causes charging discontented, and pulse current charge causes charging device circuit complicated, and cost is higher.
Summary of the invention
The object of this invention is to provide the method for a kind of electric automobile low temperature charging and corresponding charging device, convenient, economic, requirement reliably of charging under electric automobile cryogenic conditions can be met.Low-temperature charging method provided by the invention adds loop concussion for charging normal.Under cryogenic conditions, electric automobile charges normal certain hour, then charge circuit disconnects the connection of concussion loop, and battery shakes loop disconnection charge circuit after shaking certain hour connects, and after electric automobile charges normal certain hour, charge circuit disconnects and shakes loop connection.Circulation like this, realizes the charging of electric automobile low temperature.The polarization phenomena that when electric automobile low temperature charges, inside battery produces mainly are eliminated in concussion loop, produce heat heating battery at inside battery simultaneously, further lifting battery charge acceptance.Electric automobile low temperature charging device is primarily of charging connector, charge cable, DC power supplier, communication module, control module and concussion module composition.Charging connector is responsible for being connected with electric automobile, and can adopt standard interface, also can be self defined interface.Charge cable is responsible for connecting charging connector and charging device main part, and cable comprises electrical source of power cable and order wire.DC power supplier is responsible for AC power to be converted into DC power supply, and direct current output is carried out in the instruction according to control module.Communication module is responsible for charging device and outside communication, mainly with the communication of electric automobile, also can with monitoring background communication.The information of the information that control module receives according to communication module and internal sensor controls the output of DC power supply, the access of concussion module and the communication with outside.The battery of concussion module primary responsibility and electric automobile forms the concussion loop of a closed loop, and concussion loop at least comprises an inductance and an electric capacity, is usually made up of inductance, electric capacity, resistance, diode, triode.
Electric automobile low temperature charging adopt interval access concussion loop mode, can larger current charges promote low temperature charging speed ensure the safety that low temperature charges simultaneously.
There is the low temperature charging device of oscillating circuit, structure is simple, with low cost, can meet simultaneously charge normal and low temperature charging requirement, during low temperature charging, the polarization phenomena that when electric automobile low temperature charges, inside battery produces effectively can be eliminated in concussion loop, produce heat heating battery at inside battery simultaneously, promote battery charge acceptance further.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the low temperature charging device with concussion module
Wherein 1---charging device main body, 2---charging connector, 3---charge cable, 4---concussion module, 5---DC power supplier, 6---communication module, 7---control module.
Accompanying drawing 2 is circuit theory schematic diagrames of concussion module
Wherein 21---inductance, 22---electric capacity, 23---resistance.
Accompanying drawing 3 is the circuit theory schematic diagrames in concussion loop
Wherein 31---battery, 32---inductance, 33---electric capacity, 34---resistance.
Embodiment
embodiment one
Electric automobile low temperature charging device is primarily of charging connector, charge cable, DC power supply, communication module, control module and concussion module composition.Described charging connector is responsible for being connected with electric automobile, adopts GB DC interface.Described charge cable is responsible for connecting charging connector and charging device main part, is seven core cable, comprises power line and order wire.Described DC power supply is AC/DC module, is responsible for AC power to be converted into direct current, and direct current output is carried out in the instruction according to control module.Described communication module is CAN, is responsible for charging device and outside communication, mainly with the communication of electric automobile, simultaneously also can with monitoring background communication.The information of the information that described control module receives according to communication module and internal sensor controls the output of DC power supply, the access of concussion module and the communication with outside.Described concussion module in charge and the battery of electric automobile form the concussion loop of a closed loop, mainly comprise an inductance and electric capacity, inductance and a capacitances in series.During charging electric vehicle, the battery temperature information that control module receives from electric automobile according to communication module and charging requirement determine whether enable low temperature charge mode, if do not enable low temperature charge mode, charging device charges normal.If enable low temperature charge mode, the battery essential information that control module receives from electric automobile according to communication module and temperature information determine normal charging current size and the ratio of charging interval and concussion time.Temperature, lower than-20 degrees Celsius, is charged and is shaken 10 seconds for 5 seconds.Temperature is-20---and-10 degrees Celsius, concussion in 5 seconds 5 seconds of charging.Temperature is-10---and 0 degree Celsius, concussion in 5 seconds 3 seconds of charging.Temperature is 0---and 10 degrees Celsius, concussion in 5 seconds 1 second of charging.
embodiment two
Electric automobile low temperature charging device is primarily of charging connector, charge cable, DC power supply, communication module, control module and concussion module composition.Described charging connector is responsible for being connected with electric automobile, adopts GB DC interface.Described charge cable is responsible for connecting charging connector and charging device main part, is seven core cable, comprises power line and order wire.Described DC power supply is AC/DC module, is responsible for AC power to be converted into direct current, and direct current output is carried out in the instruction according to control module.Described communication module is CAN, is responsible for charging device and outside communication, mainly with the communication of electric automobile, simultaneously also can with monitoring background communication.The information of the information that described control module receives according to communication module and internal sensor controls the output of DC power supply, the access of concussion module and the communication with outside.Described concussion module in charge and the battery of electric automobile form the concussion loop of a closed loop, mainly comprise an inductance and an electric capacity, inductance and capacitances in series, and Capacitance parallel connection has a resistance simultaneously.During charging electric vehicle, the battery temperature information that control module receives from electric automobile according to communication module and charging requirement determine whether enable low temperature charge mode, if do not enable low temperature charge mode, charging device charges normal.If enable low temperature charge mode, the battery essential information that control module receives from electric automobile according to communication module and temperature information determine normal charging current size and the ratio of charging interval and concussion time.Temperature, lower than-20 degrees Celsius, is charged and is shaken 5 seconds for 3 seconds.Temperature is-20---and-10 degrees Celsius, concussion in 5 seconds 5 seconds of charging.Temperature is-10---and 0 degree Celsius, concussion in 10 seconds 5 seconds of charging.Temperature is 0---and 10 degrees Celsius, concussion in 20 seconds 5 seconds of charging.
embodiment three
Electric automobile low temperature charging device is primarily of charging connector, charge cable, DC power supply, communication module, control module and concussion module composition.Described charging connector is responsible for being connected with electric automobile, adopts GB DC interface.Described charge cable is responsible for connecting charging connector and charging device main part, is seven core cable, comprises power line and order wire.Described DC power supply is AC/DC module, is responsible for AC power to be converted into direct current, and direct current output is carried out in the instruction according to control module.Described communication module is CAN, is responsible for charging device and outside communication, mainly with the communication of electric automobile, simultaneously also can with monitoring background communication.The information of the information that described control module receives according to communication module and internal sensor controls the output of DC power supply, the access of concussion module and the communication with outside.Described concussion module in charge and the battery of electric automobile form the concussion loop of a closed loop, mainly comprise an inductance and an electric capacity, inductance and capacitances in series, simultaneously Capacitance parallel connection resistance, inductance in parallel resistance.During charging electric vehicle, the battery temperature information that control module receives from electric automobile according to communication module and charging requirement determine whether enable low temperature charge mode, if do not enable low temperature charge mode, charging device charges normal.If enable low temperature charge mode, the battery essential information that control module receives from electric automobile according to communication module and temperature information determine normal charging current size and the ratio of charging interval and concussion time.Temperature, lower than-20 degrees Celsius, is charged and is shaken 5 seconds for 3 seconds.Temperature is-20---and-10 degrees Celsius, concussion in 5 seconds 5 seconds of charging.Temperature is-10---and 0 degree Celsius, concussion in 5 seconds 3 seconds of charging.Temperature is 0---and 10 degrees Celsius, concussion in 5 seconds 1 second of charging.
embodiment four
Electric automobile low temperature charging device is primarily of charging connector, charge cable, DC power supply, communication module, control module and concussion module composition.Described charging connector is responsible for being connected with electric automobile, adopts GB DC interface.Described charge cable is responsible for connecting charging connector and charging device main part, is seven core cable, comprises power line and order wire.Described DC power supply is AC/DC module, is responsible for AC power to be converted into direct current, and direct current output is carried out in the instruction according to control module.Described communication module is CAN, is responsible for charging device and outside communication, mainly with the communication of electric automobile, simultaneously also can with monitoring background communication.The information of the information that described control module receives according to communication module and internal sensor controls the output of DC power supply, the access of concussion module and the communication with outside.Described concussion module in charge and the battery of electric automobile form the concussion loop of a closed loop, mainly comprise an inductance and an electric capacity, inductance and capacitances in series, and Capacitance parallel connection has a resistance simultaneously.During charging electric vehicle, the battery temperature information that control module receives from electric automobile according to communication module and charging requirement determine whether enable low temperature charge mode, if do not enable low temperature charge mode, charging device charges normal.If enable low temperature charge mode, the battery essential information that control module receives from electric automobile according to communication module and temperature information determine normal charging current size and the ratio of charging interval and concussion time.Temperature, lower than-20 degrees Celsius, is charged and is shaken 3 seconds for 3 seconds.Temperature is-20---and-10 degrees Celsius, concussion in 3 seconds 2 seconds of charging.Temperature is-10---and 0 degree Celsius, concussion in 3 seconds 1 second of charging.Temperature is 0---and 10 degrees Celsius, concussion in 5 seconds 1 second of charging.
Claims (5)
1. an electric automobile low-temperature charging method, it is characterized in that electric automobile charge normal certain hour at low temperatures after equipment be transformed into concussion pattern, after batteries of electric automobile concussion certain hour, equipment proceeds to normal charge mode again, so repeatedly, completes charging electric vehicle process.
2. charging method according to claim 1, is characterized in that charging process gets more and more along with battery temperature constantly raises the normal charging period contrast concussion time.
3. an electric automobile low temperature charging device, primarily of charging connector, charge cable, DC power supply, communication module, control module and concussion module composition, is characterized in that the output of charging device can be changed between normal charge mode and concussion pattern.
4. charging device according to claim 3, is characterized in that concussion module is for holding sense oscillating circuit.
5. charging device according to claim 4, is characterized in that the Capacitance parallel connection holding sense oscillating circuit has discharge resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510421622.6A CN104935059A (en) | 2015-07-18 | 2015-07-18 | Low-temperature charging method and charging equipment of electric automobile |
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| CN201510421622.6A CN104935059A (en) | 2015-07-18 | 2015-07-18 | Low-temperature charging method and charging equipment of electric automobile |
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Cited By (2)
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| CN105576756A (en) * | 2016-01-17 | 2016-05-11 | 周虎 | Multi-voltage output power battery system |
| CN107394294A (en) * | 2017-07-20 | 2017-11-24 | 浙江谷神能源科技股份有限公司 | System, control device for lithium ion battery discharge and recharge and associated method |
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2015
- 2015-07-18 CN CN201510421622.6A patent/CN104935059A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576756A (en) * | 2016-01-17 | 2016-05-11 | 周虎 | Multi-voltage output power battery system |
| CN107394294A (en) * | 2017-07-20 | 2017-11-24 | 浙江谷神能源科技股份有限公司 | System, control device for lithium ion battery discharge and recharge and associated method |
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| US10256512B2 (en) | 2017-07-20 | 2019-04-09 | Zhejiang Godsend Power Technology Co., Ltd. | Systems and control devices for charging and discharging lithium-ion battery, and relevant methods |
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Application publication date: 20150923 |