CN110854459A - Charging pile charging method based on automatic data comparison - Google Patents
Charging pile charging method based on automatic data comparison Download PDFInfo
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- CN110854459A CN110854459A CN201911183464.XA CN201911183464A CN110854459A CN 110854459 A CN110854459 A CN 110854459A CN 201911183464 A CN201911183464 A CN 201911183464A CN 110854459 A CN110854459 A CN 110854459A
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- charging
- electric vehicle
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- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/448—End of discharge regulating measures
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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
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention discloses a charging method of a charging pile based on automatic data comparison.
Description
The technical field is as follows:
the invention relates to the field of charging, in particular to a charging pile charging method based on automatic data comparison.
Background art:
the electric vehicle is the development trend of the current automobile industry, but the kinetic energy of the electric vehicle is electricity, and the current point restricting the electric vehicle is that the charging time of the electric vehicle is longer, and the trip of people is seriously influenced by long-time waiting for charging. Various methods for optimizing the charging of the battery have been developed, but there are problems in that the charging speed of the battery is different at different temperatures, and the rapid full charge strategy of the battery varies greatly for different usage times (charge and discharge times). In addition, since the remaining battery capacity and the voltage across the battery are in a nonlinear relationship, the remaining battery capacity of the battery can only be estimated approximately, and cannot be measured accurately.
The invention content is as follows:
the invention aims to provide a charging method of a charging pile based on automatic data comparison.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a charging method of a charging pile based on automatic data comparison comprises the following steps:
firstly, charging optimization is carried out on an electric vehicle battery with a preset model, a charging strategy for quickly charging the electric vehicle battery at each temperature stage is determined, and the charging strategy is recorded as a corresponding charging current curve;
step two, equally dividing the charging time of the charging current curve into a plurality of fixed charging time points; performing constant voltage charging at each pair of adjacent charging time points by adopting a set voltage, and recording a current magnitude curve of the electric vehicle battery during constant voltage charging at each temperature stage as a calibration current curve;
thirdly, mounting a temperature sensor on a charging head of the charging pile, and setting an information input end for inputting the model of the electric vehicle;
step four, when the electric vehicle is charged, inputting the model of the electric vehicle at an information input end, then taking a charging head, and charging at a set voltage and a constant voltage, wherein the constant voltage charging time is the time interval between adjacent fixed charging time points to obtain a charging current curve and the average temperature of the battery during constant voltage charging;
step five, selecting a calibration current curve of the rechargeable electric vehicle model battery at the temperature stage of the average temperature of the battery; comparing the charging current curve with the calibration current curve to obtain the closest calibration current curve;
and step six, taking the time interval from the midpoint of the closest calibration current curve to the end of the charging current curve as a charging curve of the electric vehicle battery, and completing charging according to the charging curve of the electric vehicle battery.
In the fourth step, the electric quantity of the battery of the electric vehicle is less than 50% when the electric vehicle is charged.
In a further improvement, the temperature difference of the temperature stage is 2-5 ℃.
In the first step, charging optimization is carried out on the electric vehicle battery with the set model, a charging strategy for quickly charging the electric vehicle battery under each complete charging and discharging frequency charging cycle of the electric vehicle battery at each temperature stage is determined, and the charging strategy is recorded as a corresponding charging current curve;
in the second step, the charging time of the charging current curve is equally divided into a plurality of fixed charging time points; for each electric vehicle battery under the charging cycle of the full charging and discharging times, constant voltage charging is carried out by adopting a set voltage at each pair of adjacent charging time points, and the current magnitude curve of the electric vehicle battery during constant voltage charging at each temperature stage is recorded as a calibration current curve.
In a further improvement, the time interval between adjacent fixed charging time points is 1-10 min.
In a further refinement, the time interval between adjacent fixed charging time points is 3 min.
In a further improvement, in the fourth step, when there is no battery of the input electric vehicle model, five-segment charging is adopted.
The five-stage charging adopts trickle charging, primary constant current charging, secondary constant current charging, tertiary constant current charging and pulse charging in sequence, the charging stop lasts for 10s after each stage of charging is finished, and the trickle charging, the primary constant current charging, the secondary constant current charging, the tertiary constant current charging and the pulse charging are respectively charged to 20%, 40%, 60%, 80% and 100% of the electric quantity of the battery.
The specific implementation mode is as follows:
in order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Example 1
A charging method of a charging pile based on automatic data comparison comprises the following steps:
in the first step, charging optimization is carried out on the electric vehicle battery with the set model, a charging strategy for charging the electric vehicle battery most quickly under each complete charging and discharging frequency charging cycle of the electric vehicle battery at each temperature stage is determined, and the charging strategy is recorded as a corresponding charging current curve;
in the second step, the charging time of the charging current curve is equally divided into a plurality of fixed charging time points; for each electric vehicle battery under the charging cycle of the full charging and discharging times, constant voltage charging is carried out by adopting a set voltage at each pair of adjacent charging time points, and the current magnitude curve of the electric vehicle battery during constant voltage charging at each temperature stage is recorded as a calibration current curve;
thirdly, mounting a temperature sensor on a charging head of the charging pile, and setting an information input end for inputting the model of the electric vehicle;
step four, when the electric vehicle is charged, inputting the model of the electric vehicle at an information input end, then taking a charging head, and charging at a set voltage and a constant voltage, wherein the constant voltage charging time is the time interval between adjacent fixed charging time points to obtain a charging current curve and the average temperature of the battery during constant voltage charging; the electric quantity of the electric vehicle battery is less than 50% when the electric vehicle is preferably charged, and the charging is more accurate; preferably, the temperature of the heat preservation liquid at the periphery of the battery of the electric vehicle is kept constant during charging.
Step five, selecting a calibration current curve of the rechargeable electric vehicle model battery at the temperature stage of the average temperature of the battery; comparing the charging current curve with the calibration current curve to obtain the closest calibration current curve;
and step six, taking the time interval from the midpoint of the closest calibration current curve to the end of the charging current curve as a charging curve of the electric vehicle battery, and completing charging according to the charging curve of the electric vehicle battery.
The temperature difference between the upper layer and the lower layer in the temperature stage is 2-5 ℃.
The time interval between adjacent fixed charging time points is 1-10 min.
The time interval between adjacent fixed charging time points is 3 min.
And step four, when the battery of the electric vehicle model is not input, the five-section charging is adopted.
The five-section charging is that trickle charging, primary constant current charging, secondary constant current charging, tertiary constant current charging and pulse charging are sequentially adopted, the charging is stopped for 10s after each section of charging is finished, and the trickle charging, the primary constant current charging, the secondary constant current charging, the tertiary constant current charging and the pulse charging are respectively charged to 20%, 40%, 60%, 80% and 100% of the electric quantity of the battery.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A charging method of a charging pile based on automatic data comparison is characterized by comprising the following steps:
firstly, charging optimization is carried out on an electric vehicle battery with a preset model, a charging strategy for quickly charging the electric vehicle battery at each temperature stage is determined, and the charging strategy is recorded as a corresponding charging current curve;
step two, equally dividing the charging time of the charging current curve into a plurality of fixed charging time points; performing constant voltage charging at each pair of adjacent charging time points by adopting a set voltage, and recording a current magnitude curve of the electric vehicle battery during constant voltage charging at each temperature stage as a calibration current curve;
thirdly, mounting a temperature sensor on a charging head of the charging pile, and setting an information input end for inputting the model of the electric vehicle;
step four, when the electric vehicle is charged, inputting the model of the electric vehicle at an information input end, then taking a charging head, and charging at a set voltage and a constant voltage, wherein the constant voltage charging time is the time interval between adjacent fixed charging time points to obtain a charging current curve and the average temperature of the battery during constant voltage charging;
step five, selecting a calibration current curve of the rechargeable electric vehicle model battery at the temperature stage of the average temperature of the battery; comparing the charging current curve with the calibration current curve to obtain the closest calibration current curve;
and step six, taking the time interval from the midpoint of the closest calibration current curve to the end of the charging current curve as a charging curve of the electric vehicle battery, and completing charging according to the charging curve of the electric vehicle battery.
2. The charging pile charging method based on the automatic data comparison as claimed in claim 1, wherein in the fourth step, the electric quantity of the electric vehicle battery is less than 50% when the electric vehicle is charged.
3. The charging pile charging method based on the automatic data comparison as claimed in claim 1, wherein the temperature difference in the temperature phase is 2-5 ℃.
4. The charging pile charging method based on the automatic data comparison as claimed in claim 1, wherein in the first step, the charging optimization is performed on the electric vehicle battery with the set model, the charging strategy that the electric vehicle battery is charged at the fastest speed under each full charging and discharging frequency charging cycle of the electric vehicle battery in each temperature stage is determined, and the charging strategy is recorded as a corresponding charging current curve;
in the second step, the charging time of the charging current curve is equally divided into a plurality of fixed charging time points; for each electric vehicle battery under the charging cycle of the full charging and discharging times, constant voltage charging is carried out by adopting a set voltage at each pair of adjacent charging time points, and the current magnitude curve of the electric vehicle battery during constant voltage charging at each temperature stage is recorded as a calibration current curve.
5. The charging pile charging method based on the automatic data comparison as claimed in claim 1, wherein the time interval between adjacent fixed charging time points is 1-10 min.
6. The charging pile charging method based on the automatic data comparison as claimed in claim 5, wherein the time interval between adjacent fixed charging time points is 3 min.
7. The charging method for the charging pile based on the automatic data comparison as claimed in claim 1, wherein in the fourth step, when there is no battery of the inputted electric vehicle model, the charging is performed in a five-segment manner.
8. The charging pile charging method based on automatic data comparison as claimed in claim 7, wherein trickle charging, primary constant current charging, secondary constant current charging, tertiary constant current charging and pulse charging are adopted in sequence, each charging section stops charging for 10s, and the trickle charging, the primary constant current charging, the secondary constant current charging, the tertiary constant current charging and the pulse charging are respectively charged to 20%, 40%, 60%, 80% and 100% of the electric quantity of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911183464.XA CN110854459B (en) | 2019-11-27 | 2019-11-27 | Charging pile charging method based on automatic data comparison |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911183464.XA CN110854459B (en) | 2019-11-27 | 2019-11-27 | Charging pile charging method based on automatic data comparison |
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| CN110854459A true CN110854459A (en) | 2020-02-28 |
| CN110854459B CN110854459B (en) | 2020-12-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934037A (en) * | 2020-07-14 | 2020-11-13 | 浙江零跑科技有限公司 | Battery charging method and computer readable storage medium |
| CN113346582A (en) * | 2021-05-31 | 2021-09-03 | 上海航天电源技术有限责任公司 | Battery pack voltage balancing method |
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| CN104600796A (en) * | 2014-12-30 | 2015-05-06 | 惠州Tcl移动通信有限公司 | Quickly-charger mobile terminal, method and system |
| CN107843845A (en) * | 2017-10-23 | 2018-03-27 | 合肥国轩高科动力能源有限公司 | A kind of power lithium-ion battery SOH estimation on line methods |
| CN207282658U (en) * | 2017-07-24 | 2018-04-27 | 江西优特汽车技术有限公司 | A kind of charging interval display system |
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Patent Citations (4)
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| CN101097248A (en) * | 2006-06-28 | 2008-01-02 | Lg电子株式会社 | Enhanced-accuracy battery capacity prediction |
| CN104600796A (en) * | 2014-12-30 | 2015-05-06 | 惠州Tcl移动通信有限公司 | Quickly-charger mobile terminal, method and system |
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Cited By (3)
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| CN111934037A (en) * | 2020-07-14 | 2020-11-13 | 浙江零跑科技有限公司 | Battery charging method and computer readable storage medium |
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| CN113346582A (en) * | 2021-05-31 | 2021-09-03 | 上海航天电源技术有限责任公司 | Battery pack voltage balancing method |
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| CN110854459B (en) | 2020-12-04 |
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