CN110239391A - A kind of charging method and charging pile system suitable for electric car - Google Patents
A kind of charging method and charging pile system suitable for electric car Download PDFInfo
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- CN110239391A CN110239391A CN201910377107.0A CN201910377107A CN110239391A CN 110239391 A CN110239391 A CN 110239391A CN 201910377107 A CN201910377107 A CN 201910377107A CN 110239391 A CN110239391 A CN 110239391A
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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
- B60L53/10—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
-
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- 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
-
- 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
- B60L53/66—Data transfer between charging stations and vehicles
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to a kind of charging method and charging pile system suitable for electric car, belong to vehicle auxiliary device for electrical domain.Method includes the following steps: (1) carries out physical connection detection to vehicle and charging pile；(2) if physical connection detection is qualified, information of vehicles and the corresponding account information of vehicle is obtained, vehicle is authenticated, if information of vehicles and the corresponding account information of vehicle are met the requirements, Insulation monitoring is carried out to charging pile；(3) when charging pile Insulation monitoring is normal, information of vehicles is reacquired, and this time is obtained into information of vehicles and is compared with the information of vehicles obtained in step (2), if it is different, then stopping to charge；(4) if they are the same, then it starts to charge；(5) charging finishes, voluntarily shutdown unlock, carries out settlement through account.This method by confirming information of vehicles twice, it is ensured that the accuracy rate of information of vehicles improves the reliability of charging.
Description
Technical field
The present invention relates to a kind of charging methods and charging pile system suitable for electric car, belong to vehicle auxiliary device
For electrical domain.
Background technique
In the extension process of electric car, the construction and popularization of electrically-charging equipment are extremely important.Existing charging pile
At present all using the wired connection mode for having charge connector, charging modes are broadly divided into recharged card, cell phone application and user's account
Family etc., these are all necessarily required to manual operation.In specific usage scenario, for example, timesharing lease, private stake are mating, motorcade,
The scenes such as residential property and public charging station, manual operation is comparatively laborious, is easy error and labor intensive.
In recent years, charging is gradually moved towards intelligent, such as Authorization Notice No. is the middle promulgated by the State Council of CN 102110994B
Bright patent document, which discloses a kind of electric vehicle charging management system and charging method, the electric vehicle charging management system, to be realized more
The intelligent management of aspect, for example identify vehicle identification code, identification user identity, whether be lost vehicles, payment and battery
The management etc. of electricity, but the system is only once identified when carrying out vehicle identification, is once known in many cases,
The information not obtained is often inaccurate, for example, by vehicle identification code carry out vehicle identification when, due to information transmitting or image know
There is not mistake, cause information incorrect, reduces the reliability of charging pile.
Summary of the invention
The object of the present invention is to provide a kind of charging methods suitable for electric car, for solving existing intelligent charge side
Formula only once identifies vehicle, causes information inaccurate in the case where identifying wrong, the low problem of charging reliability, together
When also propose a kind of charging pile system, for solve existing charging pile system only vehicle is once identified, identification it is wrong
In the case where cause information inaccurate, the low problem of charging reliability.
To solve the above problems, the present invention proposes a kind of charging method suitable for electric car, comprising the following steps:
(1) physical connection detection is carried out to vehicle and charging pile；
(2) if physical connection detection is qualified, information of vehicles and the corresponding account information of vehicle is obtained, is reflected to vehicle
Power carries out Insulation monitoring to charging pile if information of vehicles and the corresponding account information of vehicle are met the requirements；
(3) when charging pile Insulation monitoring is normal, information of vehicles is reacquired, and this time is obtained into information of vehicles and step
(2) information of vehicles obtained in is compared, if it is different, then stopping to charge；
(4) if they are the same, then it starts to charge；
(5) charging finishes, voluntarily shutdown unlock, carries out settlement through account.
This method obtains an information of vehicles after physical connection detection is qualified, normally obtains a train afterwards in Insulation monitoring
Information, and the information of vehicles that this is obtained twice is compared, if information of vehicles is identical twice, starts charging, pass through
Information of vehicles is confirmed twice, it is ensured that the accuracy rate of information of vehicles improves the reliability of charging.
Further, charging method further includes the steps that charging pile carries out self-test, self-test after physical connection detects qualification
Operating status including detecting charging pile itself.
Only just continue charging process in the normal situation of charging pile operating status, it will also be after if charging pile is faulty
Continuous subsequent step, wastes time and resource, and therefore, process of self-test not only guarantees being normally carried out for charging, also further raising
Efficiency.
Further, charging includes precharge and formal charging in step (4), and the precharge includes detection battery-end electricity
The contactor of pressure and charging pile, if battery terminal voltage is not within the allowable range or the contactor failure of charging pile, suspension is filled
Electricity.
Before formal charging, vehicle is pre-charged, precharge mainly detection battery terminal voltage and charging pile connect
Tentaculum is closed the contactor of charging pile when battery terminal voltage meets the requirement of charging pile output voltage, when contactor fault-free
Start formal charging, guarantees the normal operation of charging and the safety of charging.
Further, formal charging includes real-time detection battery terminal voltage and the electricity by battery after precharge
Stream stops to charge if battery terminal voltage or the electric current for passing through battery are more than corresponding given threshold.
Real-time detection battery terminal voltage and the electric current by battery are wanted in formal charging process, if overtension or electricity
Flowing through will stop to charge greatly in time, and overcurrent-overvoltage is avoided to guarantee the safety of battery to the damage of battery.
In addition, it is also proposed that a kind of charging pile system, including charging pile are provided with charging interface on the charging pile, are used for
With the first communication interface of vehicle communication, for connecting the second communication interface with Platform communication, when there is the charging socket of vehicle to connect
When entering the charging interface of charging pile, the charging pile is used to carry out physical detection to charging socket and charging interface, if physics connects
It is qualified to connect detection, the charging pile obtains information of vehicles by the first communication interface, and will acquire by the second communication interface
Information of vehicles is sent to platform, and platform authenticates vehicle, and obtains the corresponding account information of vehicle, if information of vehicles and vehicle
Corresponding account information is met the requirements, and platform sends vehicle confirmation successfully instruction to charging pile by the second communication interface,
Charging pile carries out Insulation monitoring according to the instruction；When charging pile Insulation monitoring is normal, charging pile passes through the first communication interface weight
It is new to obtain information of vehicles, and the information of vehicles that this time acquisition information of vehicles was obtained with last time is compared, if it is different, then stopping
Charging；If they are the same, then it starts to charge；Charging finishes, voluntarily shutdown unlock, carries out settlement through account.
The system obtains an information of vehicles after physical connection detection is qualified, normally obtains a train afterwards in Insulation monitoring
Information, and the information of vehicles that this is obtained twice is compared, if information of vehicles is identical twice, starts charging, pass through
Information of vehicles is confirmed twice, it is ensured that the accuracy rate of information of vehicles improves the reliability of charging.
Further, charging pile carries out self-test after physical connection detection is qualified, to detect the operation shape of charging pile itself
Whether state is normal.
Only just continue charging process in the normal situation of charging pile operating status, it will also be after if charging pile is faulty
Continuous subsequent step, wastes time and resource, and therefore, process of self-test not only guarantees being normally carried out for charging, also further raising
Efficiency.
Further, charging includes precharge and formal charging, and the precharge includes detection battery terminal voltage and charging
The contactor of stake, if battery terminal voltage not within the allowable range or the contactor failure of charging pile, stops to charge.
Before formal charging, vehicle is pre-charged, precharge mainly detection battery terminal voltage and charging pile connect
Tentaculum is closed the contactor of charging pile when battery terminal voltage meets the requirement of charging pile output voltage, when contactor fault-free
Start formal charging, guarantees the normal operation of charging and the safety of charging.
Further, formal charging includes real-time detection battery terminal voltage and the electricity by battery after precharge
Stream stops to charge if battery terminal voltage or the electric current for passing through battery are more than corresponding given threshold.
Real-time detection battery terminal voltage and the electric current by battery are wanted in formal charging process, if overtension or electricity
Flowing through will stop to charge greatly in time, and overcurrent-overvoltage is avoided to guarantee the safety of battery to the damage of battery.
Detailed description of the invention
Fig. 1 is charging pile electrical system schematic diagram of the present invention；
Fig. 2 is overview flow chart of the invention；
Fig. 3 is physical connection overhaul flow chart of the present invention；
Fig. 4 is charging pile self-test flow chart of the present invention；
Fig. 5 is that charge initiation of the present invention confirms flow chart；
Fig. 6 is that charge initiation of the present invention confirms flow chart again.
Specific embodiment
Charging pile system embodiment:
Charging pile system, including charging pile as shown in Figure 1, charging pile includes that non-on-board charger, charging interface (fill
Plug), for vehicle communication the first communication interface (being not drawn into Fig. 1), communicate for connect with Platform communication second
Interface (is not drawn into) in Fig. 1.Certainly, in order to guarantee the normal operation of charging pile, charging pile further includes power module, off-board fills
Electric machine controller, direct current power supply loop and low pressure auxiliary power supply circuit.In direct current power supply loop string be equipped with D.C. contactor K1,
K2, string sets auxiliary electric contactor K3, K4 in low pressure auxiliary power supply circuit.Power module is used to AC conversion be direct current, non-
Vehicle-mounted charge machine controller is used to monitor the state of D.C. contactor K1, K2 and auxiliary electric contactor K3, K4, and the connection of charging pile is closed
System is the prior art as shown in Figure 1, and the present invention does not do excessive introduction.
The workflow of the charging pile system as shown in Fig. 2, specifically:
1) it stops and plugs in rifle, physical connection detection.
As shown in figure 3, physical connection detection-phase main function be charging pile detection charging pile charging plug with it is electronic
Whether the charging socket on automobile (i.e. vehicle) has been fully connected, when the charging on the charging socket and charging pile of electric car is inserted
When head connection, vehicle and charging pile will be waken up.Charging pile is used to carry out physical detection to charging plug and charging socket, such as
Shown in Fig. 1, charging pile periodically carries out sampling to test point 1 and obtains voltage value, when voltage value is 4V, charging plug and fills
Electrical socket has been fully connected, and physical connection detection is qualified, and only in this case, charging pile just allows to charge.It is provided by standard,
Voltage range is judged for the positive and negative 0.8V of nominal voltage, and due to considering the processing on sample border, sampled voltage exists at present
Allow to charge in [3.3V, 4.7V] range, does not otherwise allow to charge.
2) charging pile self-test.
When physical connection detects qualification, as shown in figure 4, charging pile starts closure A.C. contactor (Kp in Fig. 1), charging
Stake carries out self-test.The purpose of charging pile self-test is detected to charging pile self-operating state, and whether detection charging pile meets
Charge requirement, charging pile master controller mainly pass through information exchange or state-detection other charging pile components, including charging pile
Used in the components such as slave controller, power module and various contactor states operating status and signal intelligence, such as fill
When electric stake operating status exception, then stop to charge；If charging pile and platform (or station level monitor supervision platform) communication disruption, prompt
It can not deduct fees automatically, only support off-line trading mode (such as Payment Card) carries out charging service；If charging pile self-test complete and
After operating status is normal, follow the steps below.
3) start confirmation stage.
As shown in figure 5, charging pile passes through first whithin a period of time (the present embodiment is set as 5s) after self-test passes through
Communication interface obtains information of vehicles, and is sent to platform by the information of vehicles that the second communication interface will acquire, and platform is to vehicle
It is authenticated, whether detection vehicle is only registered, if registration, acquires the corresponding account information of vehicle, vehicle has been registered
And in the case that account balance is sufficient, platform replys vehicle confirmation message to charging pile, and charging pile receives vehicle confirmation message
Follow the steps below；If vehicle is not registered or vehicle is corresponding in the case that Sorry, your ticket has not enough value, platform, which is sent, stops charging
Instruction, charging pile stop charging.
The information of vehicles that the present invention uses is the VIN code of vehicle, can also be identified simultaneously to license plate, to Car license recognition
Including the various ways such as video, infrared, the first communication interface can be only logical using CAN by communication modes such as wireless, CAN
The mode of letter needs to change charging flow and handshake message, such as in BHM (i.e. vehicle handshake message) message, increases vehicle
Information field, but cost is relatively low for change, technology maturation, securely and reliably.Therefore the present invention to the information of vehicles of acquisition and obtains
Take the means of information of vehicles with no restrictions.
4) charging pile carries out Insulation monitoring.
After passing through starting confirmation stage, as shown in Figure 1, charging pile is closed auxiliary electric contactor K3, K4, assist low pressure
Current supply circuit conducting, is closed D.C. contactor K1, K2, while sending charging handshake message later, obtains the highest of Vehicular battery
Allow charging voltage and power supply unit voltage rating, and starts to carry out insulating monitoring.Output voltage when insulating monitoring is (in Fig. 1
Voltage measurement at the voltage that is measured) charging voltage and the specified electricity of power supply unit should be allowed for highest in charging handshake message
Smaller value in pressure after Insulation monitoring is normal, follows the steps below；Insulation monitoring is abnormal, then stops to charge.
5) start confirmation stage again.
As shown in fig. 6, charging pile obtains correct again through the first communication interface when charging pile Insulation monitoring is normal
After BRM message (i.e. BMS and vehicle recognition message), that is, know vehicle VIN code, vehicle VIN code that charging pile obtains this and
The vehicle VIN code obtained in step 3) is compared, if vehicle VIN code twice is identical, follows the steps below；If not phase
Together, then stop to charge.
6) start the charging stage.
Charging stage includes pre-charging stage and formal charging stage two parts.
When charging pile receives BRO message (i.e. the ready state of battery charging), information of vehicles confirms rank in starting again
After section verification passes through, into pre-charging stage, precharge includes the contactor of detection battery terminal voltage and charging pile.
As shown in Figure 1, charging pile is sampled (i.e. Fig. 1 voltage measurement to the outside voltage of direct current output contactor K1, K2
The voltage at place), and the error of sampled voltage and the battery terminal voltage in BCP message (i.e. power battery charging parameter) should allow
In range (i.e. between the minimum and maximum output voltage of charging pile), if any one condition is unsatisfactory for, stop to charge,
Battery-end electric voltage exception is sent to alert on and.
When above-mentioned two condition meets simultaneously, charging pile starts to start at this time, that is to say, that when detecting that charging pile is defeated
Out voltage be less than battery terminal voltage, and -10V≤charging pile output voltage-battery terminal voltage≤- 1V arrive between when, be closed direct current
Contactor K1, K2, and pass through the feedback signal of contactor K1, K2 itself, the status information of D.C. contactor K1, K2 are acquired, such as
Fruit acquisition contactor K1, K2 status signal is in an off state, then it is believed that D.C. contactor K1, K2 failure, is tripping state,
So charging pile stop charging, and on send platform direct current output contactor K1, K2 failure.If all meet the requirements, enter
CRO message (i.e. charger exports ready state) is sent, waits and enters the formal charging stage.
The formal charging stage, when charging pile receives BCL message (i.e. battery charge requirement) and (the battery charging of BCS message
Total state) after, start with the power output of demand voltage and demand current adjustment charging pile in BCL message.
In formal charging process, charging pile should detect faults itself, the charging amount of money, detection BSM (i.e. power electric periodically
Pond status information) in battery charging prohibitory sign, according in BCP message (i.e. power battery state parameter) battery highest permit
Perhaps charge threshold；Monitor the battery status and detection own situation in charging process, battery status mainly includes battery terminal voltage
And the electric current for passing through battery.To guarantee that the demand voltage of BMS transmission and electric current should be lower than highest in entire formal charging process
Charging voltage and highest is allowed to allow charging current, if voltage, electric current exception or charging pile failure or the amount of money occur not
When sufficient, into charging ending phase.
7) charging finishes, voluntarily shutdown unlock, carries out settlement through account.
After charging, power output should be stopped, detecting whether charger is in standby or electric current in 10S
5A is dropped to hereinafter, disconnecting direct current output contactor K1, K2；If do not shut down, enter failure shut-down-phase, directly disconnects exchange
Contactor (Kp in Fig. 1).
When charging pile receives BSD message (i.e. BMS statistical data) or issues CEM message (i.e. charger error message)
Afterwards, after extending 1s, auxiliary electric contactor K3, K4 are disconnected, being then turned off electronic lock, (electronic lock is mounted on the charging plug of charging pile
It is interior).After postponing 5s, if electronic lock does not unlock success also, carries out second and unlock.If electronic lock unlock twice all not at
Function above send electronic lock failure.Initially enter charging accounts settling phase.
Charging pile generate record of charging, and on send platform, timely update platform account information；If detecting charging pile and putting down
When platform communication disruption, this record of charging should be locally saved in charging pile；After normal with Platform communication, this should be charged again
Operation platform is sent on record.
This system is not changing two national standard agreement rule of existing GB/T 18487.1-2015 and GB/T 27930-2015
In the case where fixed charging flow, the charging process of this system is realized, and the high reliablity that charges.
Charging method embodiment suitable for electric car:
Charging method suitable for electric car, comprising the following steps:
(1) physical connection detection is carried out to vehicle and charging pile；
(2) if physical connection detection is qualified, information of vehicles and the corresponding account information of vehicle is obtained, is reflected to vehicle
Power carries out Insulation monitoring to charging pile if information of vehicles and the corresponding account information of vehicle are met the requirements；
(3) when charging pile Insulation monitoring is normal, information of vehicles is reacquired, and this time is obtained into information of vehicles and step
(2) information of vehicles obtained in is compared, if it is different, then stopping to charge；
(4) if they are the same, then it starts to charge；
(5) charging finishes, voluntarily shutdown unlock, carries out settlement through account.
It is particularly applicable to the implementation processes of the charging method of electric car to be situated between in above-mentioned charging pile system embodiment
It continues, is not described herein.
Claims (8)
1. a kind of charging method suitable for electric car, which comprises the following steps:
(1) physical connection detection is carried out to vehicle and charging pile；
(2) if physical connection detection is qualified, information of vehicles and the corresponding account information of vehicle is obtained, vehicle is authenticated, if
Information of vehicles and the corresponding account information of vehicle are met the requirements, then carry out Insulation monitoring to charging pile；
(3) when charging pile Insulation monitoring is normal, information of vehicles is reacquired, and this time is obtained into information of vehicles and step (2)
The information of vehicles of middle acquisition is compared, if it is different, then stopping to charge；
(4) if they are the same, then it starts to charge；
(5) charging finishes, voluntarily shutdown unlock, carries out settlement through account.
2. the charging method according to claim 1 suitable for electric car, which is characterized in that the charging method is also wrapped
The step of charging pile carries out self-test after physical connection detection is qualified is included, self-test includes detecting the operating status of charging pile itself.
3. the charging method according to claim 1 or 2 suitable for electric car, which is characterized in that charging in step (4)
Including precharge and formal charging, the precharge includes the contactor of detection battery terminal voltage and charging pile, if battery-end is electric
Pressure within the allowable range or the contactor failure of charging pile, then does not stop to charge.
4. the charging method according to claim 3 suitable for electric car, which is characterized in that it is described it is formal charging include
Real-time detection battery terminal voltage and the electric current by battery after precharge, if battery terminal voltage or the electricity by battery
Stream is more than corresponding given threshold, then stops to charge.
5. a kind of charging pile system, including charging pile, charging interface is provided on the charging pile, for vehicle communication
One communication interface is used to connect the second communication interface with Platform communication, which is characterized in that when the charging socket access for having vehicle is filled
When the charging interface of electric stake, the charging pile is used to carry out physical detection to charging socket and charging interface, if physical connection is examined
It is qualified to survey, and the charging pile obtains information of vehicles, and the vehicle that will acquire by the second communication interface by the first communication interface
Information is sent to platform, and platform authenticates vehicle, and obtains the corresponding account information of vehicle, if information of vehicles and vehicle pair
The account information answered is met the requirements, and platform sends vehicle confirmation successfully instruction, charging to charging pile by the second communication interface
Stake carries out Insulation monitoring according to the instruction；When charging pile Insulation monitoring is normal, charging pile is obtained again by the first communication interface
Information of vehicles is taken, and the information of vehicles that this time acquisition information of vehicles was obtained with last time is compared, if it is different, then stopping to fill
Electricity；If they are the same, then it starts to charge；Charging finishes, voluntarily shutdown unlock, carries out settlement through account.
6. charging pile system according to claim 5, which is characterized in that the charging pile is after physical connection detection is qualified
Self-test is carried out, it is whether normal with the operating status for detecting charging pile itself.
7. charging pile system according to claim 5 or 6, which is characterized in that charging includes precharge and formal charging, institute
The contactor that precharge includes detection battery terminal voltage and charging pile is stated, if battery terminal voltage within the allowable range or does not charge
The contactor failure of stake, then stop to charge.
8. charging pile system according to claim 7, which is characterized in that after the formal charging is included in precharge
Real-time detection battery terminal voltage and electric current by battery, if battery terminal voltage or the electric current for passing through battery are more than to set accordingly
Determine threshold value, then stops to charge.
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