CN110014930A - A kind of charging connection guard method and device - Google Patents
A kind of charging connection guard method and device Download PDFInfo
- Publication number
- CN110014930A CN110014930A CN201711339328.6A CN201711339328A CN110014930A CN 110014930 A CN110014930 A CN 110014930A CN 201711339328 A CN201711339328 A CN 201711339328A CN 110014930 A CN110014930 A CN 110014930A
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- temperature change
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- threshold value
- temperature
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000008859 change Effects 0.000 claims abstract description 68
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000002159 abnormal effect Effects 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- 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
- B60L53/60—Monitoring or controlling charging stations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
-
- H02J7/0088—
-
- 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
-
- 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
- Y02T90/14—Plug-in electric vehicles
-
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of charging connection guard method and devices, during the charging process, within the set time, detect the output power of charger and the temperature of charging gun and/or charging socket；Corresponding rate of temperature change in setting time is obtained according to temperature；Judge whether rate of temperature change is more than or equal to and the corresponding temperature change threshold value of output power: if it is greater than or equal to temperature change threshold value corresponding with output power, then stopping charging.The present invention can be according to the different output powers of charger; different temperature change threshold values is arranged; so that under different output powers more rationally, accurately to the judgement of temperature change; the case where preventing erroneous judgement appearance; occur so as to effectively avoid charging gun from connecting abnormal situation with charging socket; guarantee that vehicle can charge normal; prevent the generation of accident; charge protection is carried out to charging equipment and new-energy automobile, extends the service life of charging gun and charging socket to the greatest extent.
Description
Technical field
The invention belongs to electric car charging technique fields, and in particular to a kind of charging connection guard method and device.
Background technique
The current world and Chinese market, new-energy automobile are constantly popularized, and ownership is year by year significantly
Increase.With the increase of new-energy automobile ownership, the corresponding charger for new energy vehicle charging is also being sharply increased.
But charge front and back plug in rifle draw guns act inevitably charging gun and charging socket are caused it is a degree of
The problem of damage, charging gun and charging socket damage becomes increasingly conspicuous.Therefore, how utmostly to extend charging gun and charging socket
Service life, the problem of becoming market and client's urgent need to resolve.
Existing power supply unit and electric car generally all have temperature monitoring and overheat protector function.But it if fills
Electric rifle has dirty or charging gun and charging socket to connect defective tightness with charging socket coupling part, all be easy to cause coupling part
Temperature rise is too fast.If coupling part is in higher temperature for a long time, the metal oxidation of coupling part is accelerated, and then to coupling part
It causes to damage, there are certain hidden danger.
Application publication number is that the Chinese patent of CN106505677A discloses a kind of electric car charging socket protective device
And its control method, multiple layout is set on charging socket and carries out temperature acquisition, obtains the highest temperature respectively layouted and appreciates, with threshold
Value is compared, and issues limit power charging instruction according to comparison result, perhaps stops charging instruction or urgent lower electricity instruction.
The threshold value of this method be it is preset, be no variation in.But in actual charging process, environment, charging situation are all not to the utmost
It is identical, true actual conditions can not be reflected using identical preset threshold, no matter the threshold value is surveyed by which type of test
What examination obtained, it is all easier to judge by accident.
Summary of the invention
The purpose of the present invention is to provide a kind of charging connection guard method and devices, to solve temperature in the prior art
Unreasonable problem is arranged in change threshold.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
The present invention provides a kind of charging connection guard methods, including following method scheme:
Method scheme one, includes the following steps:
During the charging process, within the set time, detect charger output power and charging gun and/or charging insert
The temperature of seat；
Corresponding rate of temperature change in setting time is obtained according to temperature；
Judge whether rate of temperature change is more than or equal to temperature change threshold value corresponding with output power:
If it is greater than or equal to temperature change threshold value corresponding with output power, then stop charging；
Wherein, the temperature change threshold value and output power correspond.
It is corresponding with output power to judge that rate of temperature change is more than or equal on the basis of method scheme one for method scheme two
Temperature change threshold value when, also execute connection abnormal alarm movement.
Method scheme three judges that rate of temperature change is less than temperature corresponding with output power on the basis of method scheme one
When spending change threshold, continue to charge.
Method scheme four, five, six, respectively on the basis of method scheme one, two, three, by detection charging process
Voltage and current obtains the output power of the charger.
The present invention also provides a kind of charging connection protective devices, including following device scheme:
Device scheme one, including controller, the controller is for executing instruction to realize following method:
During the charging process, within the set time, detect charger output power and charging gun and/or charging insert
The temperature of seat；
Corresponding rate of temperature change in setting time is obtained according to temperature；
Judge whether rate of temperature change is more than or equal to temperature change threshold value corresponding with output power:
If it is greater than or equal to temperature change threshold value corresponding with output power, then stop charging；
Wherein, the temperature change threshold value and output power correspond.
It is corresponding with output power to judge that rate of temperature change is more than or equal on the basis of device scheme one for device scheme two
Temperature change threshold value when, also execute connection abnormal alarm movement.
Device scheme three judges that rate of temperature change is less than temperature corresponding with output power on the basis of device scheme one
When spending change threshold, continue to charge.
Device scheme four, five, six, respectively on the basis of device scheme one, two, three, by detection charging process
Voltage and current obtains the output power of the charger.
Beneficial effects of the present invention:
Charging connection guard method of the invention and device, real-time detection charging gun and/or charging are inserted during the charging process
The rate of temperature change of seat, value temperature change threshold value corresponding with the output power of charger is made comparisons, and judgement becomes when temperature
When rate is more than or equal to corresponding temperature change threshold value, illustrate to occur abnormal, stopping charging.The present invention can be according to charger
Different output power, different temperature change threshold values is arranged, so that sentencing under different output powers to temperature change
The case where breaking more rationally, accurately, preventing erroneous judgement appearance, so as to effectively charging gun be avoided to connect exception with charging socket
Situation occurs, and guarantees that vehicle can charge normal, prevents the generation of accident, fill to charging equipment and new-energy automobile
Electric protection extends the service life of charging gun and charging socket to the greatest extent.
Detailed description of the invention
Fig. 1 is charging connection guard method flow chart of the invention.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, to the present invention
It is described in further detail.
Charging connection protective device of the invention, including charger controller, the charger controller is to execute instruction
To realize charging connection guard method of the invention.Certainly, in order to realize method of the invention, present invention side can also will be realized
The instruction of method is arranged in the controller of vehicle, and the data acquired during realizing this method can also accordingly send vehicle to
Controller in.
Explained below with reference to Fig. 1, be discussed in detail method of the invention be how during the charging process to power supply unit and
New-energy automobile is protected, to promote the security level in charging process.
In order to realize this method, charging gun temperature sensor is set inside charging gun.
Before charging, new-energy automobile is connected with charger, charging gun is inserted into charging socket, according to related state
Target charging flow charges to new-energy automobile.
During the charging process, electric current, voltage are detected, corresponding output power is obtained.
For the different output powers of charger, charging gun temperature sensor detects the temperature of charging gun in charging process
It spends, and temperature information collected in charging process is passed to the battery management system (Battery of electric car
Management System, BMS).
Collected temperature information is sent to charger by message by BMS, is carried out to the temperature change in charging process
Monitoring.
Charger generates the temperature rise in different charging processes for different output powers according to the message received
Curve, to obtain different output power Pi(i=1,2,3,4 ...) corresponding temperature change threshold value ki(i=1,2,3,4 ...),
And these values are stored.
Wherein, temperature change threshold value and output power are one-to-one relationships.The one-to-one relationship can behave as
The following two kinds situation:
1) temperature change threshold value ki(i=1,2,3,4 ...) and output power Pi(i=1,2,3,4 ...) it is a kind of random
Discrete relationship, i.e. the corresponding output power of temperature change threshold value.In storage, can carry out in table form
Storage, it may be assumed that
Table 1
According to output power value, corresponding temperature change threshold value is can be obtained in table look-at.It is of course also possible to occur
The case where output power is between two output powers stored in table.
For example, output power P meets P2< P < P3, then the desirable k of temperature change threshold value at this time2、k3Average value；Or
According to k2、k3It is fitted, obtains temperature change threshold value corresponding with P；Also or judge P and P2Closer or and P3More connect
Closely, with P2When closer, temperature change threshold value selects k2, with P3When closer, temperature change threshold value selects k3.Specific corresponding to
Relationship, can flexible setting according to the actual situation.
2) temperature change threshold value ki(i=1,2,3,4 ...) and output power Pi(i=1,2,3,4 ...) it is a kind of function pass
System, it may be assumed that ki=f (Pi) (i=1,2,3,4 ...).The functional relation can be a kind of linear relationship, be also possible to a kind of non-thread
Sexual intercourse, and with no restrictions.
Above-mentioned two situations can be obtained by experience or a large amount of experiment, with obtain most accurate temperature change threshold value with
The relationship of output power.
After obtaining above-mentioned corresponding relationship, following method can be performed.At this point, being such as table with what is stored in charger controller
It is illustrated for the corresponding relationship of temperature change threshold value and output power shown in 1.
In current charging process, charge machine testing electric current, voltage, obtains present output power Pc.BMS is by charging gun temperature
The temperature information of degree sensor acquisition charging gun is sent to charger by message.
Charger is to PcSize judged, judge PcWith P4(P when identicalc=P4), according to table 1 is available and Pc
Corresponding temperature change threshold value is k4。
According to the temperature for the charging gun temperature sensor acquisition being arranged in charging gun, rate of temperature change k is calculatedc,
By the kcIt is worth k corresponding with present output power4Value is made comparisons:
If kc< k4, then illustrate that temperature rise variation in normal controllable range, can continue to charge；
If kc≥k4, illustrate that temperature rise variation is too fast, exception occurs, provide warning reminding in the first time to note abnormalities, and
Stop charging, targetedly to be overhauled, prevents temperature change is too fast from causing shadow to power supply unit and new-energy automobile
It rings and damages.
In this embodiment, temperature sensor is arranged in charging gun, the temperature change of charging gun is detected, prevent
Only the too fast situation of temperature change occurs.Temperature sensor can also be set in charging socket, the temperature in charging socket is become
Change is detected, and the situation for equally being prevented temperature change too fast using the above method is occurred.It certainly, can also be simultaneously in charging gun
With in charging socket simultaneously temperature sensor is set, equally charging equipment and new-energy automobile are filled using the above method
Electric protection.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of charging connection guard method, which comprises the steps of:
During the charging process, within the set time, the output power and charging gun and/or charging socket of charger are detected
Temperature；
Corresponding rate of temperature change in setting time is obtained according to temperature；
Judge whether rate of temperature change is more than or equal to temperature change threshold value corresponding with output power:
If it is greater than or equal to temperature change threshold value corresponding with output power, then stop charging；
Wherein, the temperature change threshold value and output power correspond.
2. charging connection guard method according to claim 1, which is characterized in that judge rate of temperature change be more than or equal to
When the corresponding temperature change threshold value of output power, connection abnormal alarm movement is also executed.
3. charging connection guard method according to claim 1, which is characterized in that judge that rate of temperature change is less than and output
When the corresponding temperature change threshold value of power, continue to charge.
4. described in any item charging connection guard methods according to claim 1~3, which is characterized in that charged by detection
Voltage and current in journey obtains the output power of the charger.
5. a kind of charging connection protective device, which is characterized in that including controller, the controller is for executing instruction to realize
Following method:
During the charging process, within the set time, the output power and charging gun and/or charging socket of charger are detected
Temperature；
Corresponding rate of temperature change in setting time is obtained according to temperature；
Judge whether rate of temperature change is more than or equal to temperature change threshold value corresponding with output power:
If it is greater than or equal to temperature change threshold value corresponding with output power, then stop charging；
Wherein, the temperature change threshold value and output power correspond.
6. charging connection protective device according to claim 5, which is characterized in that judge rate of temperature change be more than or equal to
When the corresponding temperature change threshold value of output power, connection abnormal alarm movement is also executed.
7. charging connection protective device according to claim 5, which is characterized in that judge that rate of temperature change is less than and output
When the corresponding temperature change threshold value of power, continue to charge.
8. according to the described in any item charging connection protective devices of claim 5~7, which is characterized in that charged by detection
Voltage and current in journey obtains the output power of the charger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339328.6A CN110014930A (en) | 2017-12-14 | 2017-12-14 | A kind of charging connection guard method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711339328.6A CN110014930A (en) | 2017-12-14 | 2017-12-14 | A kind of charging connection guard method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110014930A true CN110014930A (en) | 2019-07-16 |
Family
ID=67186951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711339328.6A Pending CN110014930A (en) | 2017-12-14 | 2017-12-14 | A kind of charging connection guard method and device |
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| CN (1) | CN110014930A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110682821A (en) * | 2019-09-05 | 2020-01-14 | 国创新能源汽车能源与信息创新中心(江苏)有限公司 | Method for solving vehicle end charging stop caused by charging pile power reduction |
| CN111579118A (en) * | 2020-04-15 | 2020-08-25 | 华为技术有限公司 | Dust accumulation detection method and device and charging pile |
| CN112821512A (en) * | 2021-02-07 | 2021-05-18 | 深圳拓邦股份有限公司 | Charging control method and system for charger |
| GB2603185A (en) * | 2021-01-29 | 2022-08-03 | Honeywell Int Inc | An electrical socket system and method |
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| CN206211512U (en) * | 2016-11-30 | 2017-05-31 | 深圳市凌康技术股份有限公司 | A kind of thermal-shutdown circuit and charging pile |
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| CN1337758A (en) * | 2001-09-19 | 2002-02-27 | 倚天资讯股份有限公司 | Battery recharging device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2603185A (en) * | 2021-01-29 | 2022-08-03 | Honeywell Int Inc | An electrical socket system and method |
| US11569621B2 (en) | 2021-01-29 | 2023-01-31 | Honeywell International Inc. | Electrical socket system and method |
| GB2603185B (en) * | 2021-01-29 | 2023-02-01 | Honeywell Int Inc | An electrical socket system and method |
| US11881660B2 (en) | 2021-01-29 | 2024-01-23 | Honeywell International Inc. | Electrical socket system and method |
| CN112821512A (en) * | 2021-02-07 | 2021-05-18 | 深圳拓邦股份有限公司 | Charging control method and system for charger |
| CN112821512B (en) * | 2021-02-07 | 2023-08-08 | 深圳拓邦股份有限公司 | Charging control method and system for charger |
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