CN115257419A - Charging method and device and electric vehicle - Google Patents
Charging method and device and electric vehicle Download PDFInfo
- Publication number
- CN115257419A CN115257419A CN202211035500.XA CN202211035500A CN115257419A CN 115257419 A CN115257419 A CN 115257419A CN 202211035500 A CN202211035500 A CN 202211035500A CN 115257419 A CN115257419 A CN 115257419A
- Authority
- CN
- China
- Prior art keywords
- charging
- voltage
- energy storage
- storage device
- charging pile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 108
- 238000004146 energy storage Methods 0.000 claims abstract description 178
- 238000001514 detection method Methods 0.000 claims abstract description 125
- 238000009413 insulation Methods 0.000 claims abstract description 102
- 238000004891 communication Methods 0.000 claims description 15
- 238000012795 verification Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 description 27
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- B60L53/30—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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- 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
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 embodiment of the invention relates to the technical field of electric vehicles, and discloses a charging method, a charging device and an electric vehicle. By applying the technical scheme of the invention, the charging capacity of the charging pile can be detected in advance through the insulation detection voltage of the charging pile, so that when the charging pile can provide higher charging voltage, the charging pile can provide higher charging voltage for the electric energy storage device by transmitting the first configuration information to the charging pile, the time consumption of the charging process can be reduced, and the charging efficiency can be improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of electric vehicles, in particular to a charging method and device and an electric vehicle.
Background
An electric vehicle is a vehicle capable of saving energy and protecting environment, and a chargeable and dischargeable electric energy storage device is generally arranged in the electric vehicle and used for providing power for the electric vehicle. In order to ensure the cruising ability of the electric vehicle, the electric energy storage device is generally charged after being discharged.
With the improvement of the cruising ability of the electric vehicle, the electric quantity which can be stored by the electric energy storage device in the electric vehicle is higher and higher, so that when the electric energy storage device is charged at present, tens of hours are frequently charged slowly, and hours are also charged quickly, so that the problems of long consumed time and low charging efficiency exist.
Disclosure of Invention
In view of the above problems, embodiments of the present invention provide a charging method and apparatus, and an electric vehicle, which are used to solve the problems of long charging time and low charging efficiency in the existing electric vehicle charging technology.
According to an aspect of an embodiment of the present invention, there is provided a charging method including:
determining an insulation detection voltage of a charging post after an electrical energy storage device is connected to the charging post, the electrical energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
determining the charging capacity of the charging pile through the insulation detection voltage;
when the charging capability of the charging pile is to support the first voltage charging, transmitting first configuration information to the charging pile, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
the electric energy storage device is charged by the first voltage provided by the charging pile.
In an optional manner, the determining the charging capability of the charging pile through the insulation detection voltage includes:
when the insulation detection voltage belongs to a first preset voltage set, determining that the charging capacity of the charging pile supports charging of the first voltage, wherein the voltage contained in the first preset voltage set is greater than the preset voltage.
In an optional manner, the first voltage is not less than 600V, and a minimum voltage in the first preset voltage set is 500V.
In an optional manner, the determining the insulation detection voltage of the charging pile includes:
and taking the voltages at the two ends of the charging pile detected during insulation detection of the charging pile as insulation detection voltages of the charging pile.
In an optional manner, after the transmitting the first configuration information to the charging pile, the method further includes:
triggering the electric energy storage device to perform pre-charging.
In an optional manner, after the triggering the pre-charging of the electrical energy storage device, the method further includes:
and transmitting the first voltage for verification to the charging pile.
In an optional manner, after the determining the charging capability of the charging post through the insulation detection voltage, the method further includes:
when the charging capacity of the charging pile is that the charging is supported by the preset voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the charging pile to charge the electric energy storage device through the preset voltage;
and charging the electric energy storage device by the preset voltage provided by the charging pile.
In an optional mode, when the predetermined voltage is 330V and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging post is to support charging at the predetermined voltage.
According to another aspect of an embodiment of the present invention, there is provided a charging device including:
a voltage determination module for determining an insulation detection voltage of a charging post after an electric energy storage device is connected to the charging post, the electric energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
the charging capacity determining module is used for determining the charging capacity of the charging pile through the insulation detection voltage;
the information transmission module is used for transmitting first configuration information to the charging pile when the charging capacity of the charging pile supports the first voltage charging, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
and the charging module is used for charging the electric energy storage device through the first voltage provided by the charging pile.
According to another aspect of an embodiment of the present invention, there is provided an electric vehicle including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, the executable instructions cause the processor to perform the operations of the charging method as described in any one of the above.
According to another aspect of the embodiments of the present invention, there is provided a computer-readable storage medium having at least one executable instruction stored therein, which when executed on a charging device/electric vehicle, causes the charging device/electric vehicle to perform the operations of the charging method as described in any one of the above aspects.
When the charging method provided by the invention is used for charging an electric energy storage device supporting higher charging voltage, after the insulation detection voltage of a charging pile is determined, the charging capacity of the charging pile can be determined through the insulation detection voltage, and when the charging capacity of the charging pile is determined to be capable of supporting first voltage charging, first configuration information is transmitted to the charging pile, the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage, and the first voltage is higher than a preset voltage, namely the first voltage is higher voltage. The charging pile can provide a first voltage according to the received first configuration information, and under the condition, the charging pile can charge the electric energy storage device through the first voltage provided by the charging pile.
In other words, according to the charging method provided by the invention, the charging capacity of the charging pile is detected in advance through the insulation detection voltage of the charging pile, so that the charging pile can directly provide higher charging voltage for the electric energy storage device when the charging pile can provide higher charging voltage. Therefore, compared with the prior art, the charging scheme provided by the invention can reduce the time consumption of the charging process and improve the charging efficiency.
The foregoing description is only an overview of the technical solutions of the embodiments of the present invention, and the embodiments of the present invention can be implemented according to the content of the description in order to make the technical means of the embodiments of the present invention more clearly understood, and the detailed description of the present invention is provided below in order to make the foregoing and other objects, features, and advantages of the embodiments of the present invention more clearly understandable.
Drawings
The drawings are only for purposes of illustrating embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a schematic flow chart of an embodiment of a charging method provided by the present invention;
fig. 2 is a schematic flow chart illustrating another embodiment of the charging method provided by the present invention;
FIG. 3 is a schematic diagram of a circuit structure of the charging method provided by the present invention;
fig. 4 is a schematic flow chart illustrating another embodiment of the charging method provided by the present invention;
fig. 5 (a) shows a schematic flow diagram of an embodiment of a charging method provided by the prior art;
fig. 5 (b) shows a schematic flow chart of another embodiment of the charging method provided by the present invention;
fig. 6 shows a schematic flow chart of another embodiment of the charging method provided by the present invention;
fig. 7 is a schematic structural diagram of a charging device provided by the present invention;
fig. 8 shows a schematic structural diagram of an electric vehicle provided by the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein.
For clarity and conciseness of the following description of various embodiments, a brief introduction to the related art is first given:
with the development of new energy technology, the performance of the electric vehicle is increasingly improved. In the early days, the voltage of the built-in electric energy storage device of the electric vehicle is generally about 330V, and with the development of the technology, the high-voltage electric energy storage device which is currently suitable for the electric vehicle also begins to expose the head corner, and the voltage of the high-voltage electric energy storage device can reach more than 600V. Accordingly, in order to charge both types of electric energy storage devices, there are currently available charging piles (hereinafter, referred to as low-voltage charging piles) suitable for charging 330V electric energy storage devices and charging piles (hereinafter, referred to as high-voltage charging piles) suitable for charging 600V or more electric energy storage devices.
The following formula exists in the electrical arts: p = UI, where P denotes charging power, U denotes charging voltage, and I denotes charging current. As can be seen from this equation, when the charging voltage U for charging the electric energy storage device in the electric vehicle is high, the charging power P is high, under a constant charging current. For example, if the full charge of a certain electric energy storage device is 90kwh, the current for charging the electric energy storage device is 200A, and if the charging voltage is 350V, the charging power is about 70kw, and it takes about 1 hour to charge the electric energy storage device from 20% charge to 100% charge. If the charging voltage is increased to 700V and the charging current is still 200A, the charging power is about 140kw, the charging time can be shortened to 0.5 hour correspondingly, and the time required by charging is greatly shortened.
Therefore, if charging a high-voltage electrical energy storage device, a user generally wants to be able to charge the high-voltage electrical energy storage device at a higher voltage, so as to improve the charging efficiency and reduce the self-waiting time.
However, because there is low voltage charging pile and high voltage charging pile simultaneously in the market at present, consequently when charging for the electric motor car through filling electric pile, the electric motor car often can't confirm that it is which to fill electric pile for self charging. For this situation, currently, in the charging process, the following steps are generally included:
if the electric energy storage device supports charging through the voltage of 600V, after charging handshaking between the electric energy storage device and a charging pile and insulation detection of the charging pile are completed, the electric energy storage device sends configuration information to the charging pile, the configuration information indicates that the electric energy storage device needs lower charging voltage, the lower charging voltage is generally 300V, the charging pile provides 300V charging voltage for the electric energy storage device through the configuration information, then the charging voltage of 300V is converted into the charging voltage of 600V through the voltage conversion circuit, and the electric energy storage device is charged through the converted charging voltage. The electrical energy storage device then continues to send configuration information to the charging post a number of times, and the required charging voltage indicated by the configuration information gradually increases until 600V is reached. If the highest charging voltage of the charging pile can reach 600V, after configuration information sent by the electric energy storage device for multiple times is received, the charging voltage provided by the charging pile is gradually increased, namely the charging pile gradually increases the charging voltage of the electric energy storage device until the high-voltage charging of the electric energy storage device is realized.
That is to say, when the electric vehicle is charged through the present mode, even if the charging pile supports high-voltage charging, the above steps need to be executed, which results in long time consumption of the charging process and low charging efficiency.
The invention discloses a charging method, a charging device and an electric vehicle, aiming at solving the problems of long charging time consumption and low charging efficiency in the prior art.
Fig. 1 shows a flow chart of a first embodiment of a charging method according to the invention, which is carried out by an electric vehicle with an electric energy storage device built in, which may comprise a battery, or a battery pack consisting of a plurality of batteries. Specifically, in one possible implementation, the charging method may be performed by a Battery Management System (BMS) of the electric vehicle.
As shown in fig. 1, the charging method includes the steps of:
step 110: after the electric energy storage device is connected with the charging pile, the insulation detection voltage of the charging pile is determined.
Wherein the electrical energy storage device supports charging by a first voltage, the first voltage being higher than a predetermined voltage.
In an embodiment of the invention, the first voltage is higher than the predetermined voltage, indicating that the electrical energy storage device supports charging by a higher voltage. The predetermined voltage may be a charging voltage (e.g., 330V) provided by a charging pile with a lower current charging capability. The first voltage may be a specific voltage value, for example, 600V if the predetermined voltage is 330V, or a set of voltages, for example, a set of voltages not less than 600V.
In addition, after the electric energy storage device and the charging pile complete charging handshake, insulation detection is often required to be performed on the charging pile. In step S110, insulation detection voltage of the charging pile may be determined by performing insulation detection on the charging pile.
Step 120: and determining the charging capacity of the charging pile through the insulation detection voltage.
In the embodiment of the present invention, the charging capability of the charging post generally represents the charging voltage that the charging post can provide. For example, if the first voltage is 600V, the predetermined voltage is 330V, and the charging voltage provided by a certain charging post is 330V, the charging capability of the charging post is to support charging the electric energy storage device by the voltage of 330V; the charging voltage provided by the other charging post is 600V, and the charging capability of the charging post is to support charging the electric energy storage device by the voltage of 600V (i.e. the first voltage).
Step 130: when the charging capability of the charging pile supports the first voltage charging, first configuration information is transmitted to the charging pile, and the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage.
In the embodiment of the present invention, if the charging capability of the charging pile is to support charging at the first voltage, it indicates that the charging pile supports charging the electric energy storage device at the first voltage, and in this case, the first configuration information is transmitted to the charging pile. For example, if the first voltage is 600V and it is determined that the charging pole supports charging by a voltage of 600V through the insulation detection voltage, the first configuration information instructs the charging pole to charge the electric energy storage device by charging by a voltage of 600V.
Step 140: the electric energy storage device is charged by the first voltage provided by the charging pile.
And after receiving the first configuration information, the charging pile charges the electric energy storage device to transmit the electric energy of the first voltage according to the indication of the first configuration. In this case, charging of the electrical energy storage device may be achieved by the first voltage.
For example, if the first voltage is 600V and the first configuration information is used to instruct the charging pole to charge the electrical energy storage device with a charging voltage of 600V, the charging pole provides the charging voltage of 600V after receiving the first configuration information, and the electrical energy storage device can be charged with the charging voltage of 600V.
When the charging method provided by the invention is used for charging an electric energy storage device supporting higher charging voltage, after the insulation detection voltage of a charging pile is determined, the charging capacity of the charging pile can be determined through the insulation detection voltage, and when the charging capacity of the charging pile is determined to be capable of supporting first voltage charging, first configuration information is transmitted to the charging pile, the first configuration information indicates that the charging pile charges the electric energy storage device through the first voltage, wherein the first voltage is higher than a preset voltage, namely the first voltage is higher than the preset voltage. The charging pile can provide charging voltage according to the received first configuration information, and under the condition, the charging pile provides first voltage according to the first configuration information, so that the electric energy storage device can be charged through the first voltage. In other words, the charging method provided by the invention detects the charging capacity of the charging pile in advance through the insulation detection voltage of the charging pile, so that the charging pile can directly provide higher charging voltage for the electric energy storage device when the charging pile can provide higher charging voltage.
Compared with the prior art, the charging scheme provided by the invention does not need an electric energy storage device to send configuration information to the charging pile for multiple times, the charging pile can directly provide higher charging voltage according to the first configuration information, and a voltage conversion circuit does not need to convert the lower charging voltage into the higher charging voltage when the charging pile provides the lower charging voltage, so that the time consumption of the charging process can be reduced, and the charging efficiency is improved.
In addition, in the prior art, the voltage conversion circuit may cause a loss of electric energy in a process of converting the lower charging voltage into the higher charging voltage by the voltage conversion circuit. The charging scheme provided by the invention does not need the voltage conversion circuit to carry out voltage conversion, so that the electric energy loss in the charging process can be reduced, and the electric energy is saved.
In the charging method disclosed by the invention, the charging capacity of the charging pile can be determined through the insulation detection voltage of the charging pile. In order to specify the method for determining the charging capability of the charging post, fig. 2 shows a flowchart of another embodiment of a charging method according to the present invention, and as shown in fig. 2, the charging method includes the following steps:
step 210: determining an insulation detection voltage of a charging post after an electrical energy storage device is connected to the charging post, the electrical energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage.
The specific execution process of step 210 is the same as the specific execution process of step 110, and may refer to each other, which is not described herein again.
Step 220: when the insulation detection voltage belongs to a first preset voltage set, determining that the charging capacity of the charging pile supports charging of the first voltage, wherein the voltage contained in the first preset voltage set is greater than the preset voltage.
In the above step, by comparing the insulation detection voltage with the first preset voltage set, it can be determined whether the charging pile supports charging by the first voltage.
In a possible implementation manner, the first voltage is a voltage not less than 600V, and the minimum voltage in the first preset voltage set is 500V, in which case, if the insulation detection voltage is 500V or more than 500V, it indicates that the insulation detection voltage belongs to the first preset voltage set, and it is further determined that the charging capability of the charging post is to support charging of the first voltage. In a specific example, the first voltage is 700V, the insulation detection voltage is 500V, and the insulation detection voltage belongs to the first preset voltage set, the charging capability of the charging post may be determined to support charging the electrical energy storage device with a voltage of 700V.
Step 230: when the charging capability of the charging pile supports the first voltage charging, first configuration information is transmitted to the charging pile, and the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage.
Step 240: the electric energy storage device is charged by the first voltage provided by the charging pile.
The specific execution process of steps 230 to 240 is the same as the specific execution process of steps 130 to 140, and may refer to each other, which is not described herein again.
By the scheme provided by this embodiment, it is possible to determine whether the charging capability of the charging pile is to support charging at the first voltage by determining whether the insulation detection voltage belongs to a first preset voltage set.
In the charging method provided by the invention, the insulation detection voltage of the charging pile needs to be determined so as to determine the charging capacity of the charging pile through the insulation detection voltage of the charging pile. In one possible implementation, the insulation detection voltage of the charging pile is determined by the following steps:
and taking the voltages at the two ends of the charging pile detected during insulation detection of the charging pile as insulation detection voltages of the charging pile.
In the charging process, insulation detection is often required to be performed on the charging pile. In the scheme, when insulation detection is carried out on the charging pile, the detected voltages at two ends of the charging pile determine the insulation detection voltage of the charging pile. The circuit for detecting the voltages at the two ends of the charging pile can be called a voltage detection circuit.
After the charging handshake between the electric energy storage device and the charging pile is completed, the voltage detection circuit performs insulation detection on the charging pile, and the charging voltage provided by the charging pile is used for charging the electric energy storage device after the charging pile passes the insulation detection. Therefore, the voltage detection circuit detects the voltages at the two ends of the charging pile when the charging pile is subjected to insulation detection, and the insulation detection voltage of the charging pile can be determined.
Wherein the voltage detection circuit may comprise the form of:
(1) The voltage detection circuit is a circuit connected with the voltage conversion circuit.
In this form, the voltage conversion circuit and the voltage detection circuit may be generally disposed in a distribution box of the electric vehicle.
When the electric energy storage device is connected with the charging pile through the junction box, a relay is included in a connection circuit of the electric energy storage device and the charging pile, and a relay detection circuit used for detecting whether the relay is adhered is usually arranged in the junction box. In this case, the present invention may reuse the relay detection circuit and use the relay detection circuit as the voltage detection circuit, thereby improving the charging efficiency without increasing the cost.
In order to clarify this form of the voltage detection circuit, the present invention provides fig. 3, where fig. 3 is a schematic circuit diagram of the electrical energy storage device when connected to the charging pile, and includes: the device comprises an electric energy storage device, a relay, a voltage conversion circuit, a voltage detection circuit and a charging pile, wherein the voltage detection circuit and the voltage conversion circuit can be arranged in a junction box of the electric vehicle.
When the insulation detection is performed on the charging pile, the voltage detection circuit can detect voltages at 1 and 2 shown in fig. 3, and the voltages are used as the insulation detection voltage.
In this embodiment, the relay detection circuit is used as the voltage detection circuit, and the voltage detection circuit does not need to be additionally provided, so that the cost does not need to be increased.
(2) The voltage detection circuit is disposed within the electrical energy storage device.
In this case, the voltage detection circuit may be provided within the electric energy storage device, the voltage detection circuit being connected to the BMS, and the voltage detection circuit may transmit the detected insulation detection voltage to the BMS so that the BMS performs the charging method provided by the present invention.
This scheme determines the insulation detection voltage through the voltage detection circuit provided at the electric energy storage device, which is relatively close in spatial distance to the BMS, so that the BMS can acquire the insulation detection voltage as quickly as possible.
In addition, in addition to the two forms, the voltage detection circuit may be provided in other devices capable of detecting the voltage across the charging pile, which is not limited in the present invention.
In order to increase the service life of the electrical energy storage device during the actual charging process, the electrical energy storage device may also be triggered to be pre-charged before the electrical energy storage device is charged by the first voltage. In this regard, fig. 4 illustrates a charging method provided by another embodiment of the present invention, which includes the following steps:
step 310: determining an insulation detection voltage of a charging post after an electrical energy storage device is connected to the charging post, the electrical energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage.
Step 320: and determining the charging capacity of the charging pile through the insulation detection voltage.
Step 330: when the charging capability of the charging pile supports the first voltage charging, first configuration information is transmitted to the charging pile, and the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage.
The specific execution process of steps 310 to 330 is the same as the specific execution process of steps 110 to 130, and may be referred to each other, which is not described herein again.
Step 340: triggering the electric energy storage device to perform pre-charging.
The pre-charging of the electric energy storage device refers to a process of pre-charging the electric energy storage device for capacitors located at two ends of the electric energy storage device. The aim of pre-charging the electric energy storage device is to reduce spark arcing of a high-voltage relay in the electric energy storage device when the high-voltage relay is closed, and to avoid high-voltage impact from damaging high-voltage parts in a circuit connected with the electric energy storage device and the charging pile. Therefore, by triggering the pre-charging of the electrical energy storage device, the safety of a high voltage system comprising the electrical energy storage device and the electrical circuit can be improved.
Further, in the embodiment of the present invention, after triggering the pre-charging of the electrical energy storage device, the method may further include the following steps:
step 350: and transmitting the first voltage for verification to the charging pile.
After the first configuration information is transmitted to the charging pile, the charging pile determines that the electric energy storage device can be charged through the first voltage according to the first configuration information. In addition, in order to guarantee the reliability of the charging process, the charging pile can be used for checking.
Through the operation of step 350, the first voltage for verification is transmitted to the charging pile, the charging pile performs verification after receiving the first voltage, and since the first voltage indicated by the first configuration information is the same as the first voltage for verification, the charging pile usually determines that the verification is passed and may provide the first voltage for charging to the electric energy storage device.
Through the operation of step 350, can be convenient for fill electric pile and check-up improves the possibility of charging.
In addition, after transmitting the first voltage for verification to the charging post, the method includes the steps of:
step 360: the electric energy storage device is charged by the first voltage provided by the charging pile.
The specific execution process of step 360 is the same as the specific execution process of step 140, and may refer to each other, which is not described herein again.
The scheme of this embodiment can not only improve charging efficiency and reduce charging time, but also improve the safety of a high-voltage system by triggering the pre-charging of the electric energy storage device, wherein the high-voltage system comprises the electric energy storage device and a circuit connected between the electric energy storage device and the charging pile. And, through to fill electric pile transmission first voltage, be convenient for fill electric pile and check-up, can also improve the reliability of charging process.
In order to clarify the advantages of the embodiment of the present invention, the following compares the processes of the prior art and the processes of the embodiment of the present invention, wherein the processes are performed by an electric vehicle, and in particular, a BMS in the electric vehicle, and both processes are performed by the electric vehicle, wherein the electric energy storage device is charged by a first voltage, and the charging post is also capable of providing the first voltage to charge the electric energy storage device.
Referring to the schematic flow chart of the prior art shown in fig. 5 (a), when charging is performed by the prior art, the method generally includes the following steps:
step 410: after a charging pile is plugged in (namely, an electric vehicle is connected with the charging pile), low-voltage auxiliary electrification is carried out on an electric energy storage device in the electric vehicle.
Step 420: and controlling the electric energy storage device and the charging pile to carry out charging handshake.
Step 430: and after the charging handshake is completed, the insulation detection is carried out on the charging pile.
Step 440: and configuring the charging parameters. In a configuration process, transmitting configuration information to the charging pile, the configuration information indicating that the electrical energy storage device is charged by a lower charging voltage, the lower charging voltage being lower than the first voltage.
And after receiving the configuration information, the charging pile determines that the electric energy storage device needs to be charged through a lower charging voltage according to the configuration information.
Step 450: triggering the electric energy storage device to perform pre-charging.
Step 460: converting, by a voltage conversion circuit, the voltage across the electrical energy storage device to the lower charging voltage.
Step 470: and transmitting the converted lower charging voltage to the charging pile so that the charging pile can check through the lower charging voltage.
Step 480: and charging the electric energy storage device through the lower charging voltage provided by the charging pile. Specifically, in the charging process, after the lower charging voltage is received, the lower charging voltage is converted into a first voltage through a voltage conversion circuit, and then the electric energy storage device is charged through the first voltage.
Step 490: the configuration of the charging parameters is performed again.
During this configuration, new configuration information is transmitted to the charging post, the new configuration information indicating that the electrical energy storage device is charged by a new charging voltage that is higher than the charging voltage indicated by the previous configuration information.
And after receiving the new configuration information, the charging pile determines that the electric energy storage device needs to be charged by a new charging voltage according to the new configuration information.
Step 500: and charging the electric energy storage device by the new charging voltage provided by the charging pile.
If the new charging voltage is smaller than the first voltage, the new charging voltage is converted into the first voltage through a voltage conversion circuit, the electric energy storage device is charged through the first voltage, and then the operation of step 490 is executed again, that is, the configuration of the charging parameters is continued. And if the new charging voltage is equal to the first voltage, the electric energy storage device is charged by the first voltage until the charging is finished.
Referring to the schematic flow chart of the prior art shown in fig. 5 (b), the charging according to the scheme provided by the present invention generally includes the following steps:
step 510: after a charging pile is plugged in (namely, an electric vehicle is connected with the charging pile), the electric energy storage device in the electric vehicle is electrified in a low-voltage assisting mode.
Step 520: and controlling the electric energy storage device and the charging pile to carry out charging handshake.
Step 530: and after the charging handshake is completed, the charging pile is subjected to insulation detection, the voltages at two ends of the charging pile, which are detected when the charging pile is subjected to insulation detection, are used as the insulation detection voltages of the charging pile, and the charging capacity of the charging pile is determined through the insulation detection voltages.
Step 540: and configuring the charging parameters. Because the charging capability of the charging pile is to support the first voltage charging, in a configuration process, first configuration information is transmitted to the charging pile, and the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage.
After the charging pile receives the first configuration information, it is determined that the electric energy storage device needs to be charged through the first voltage through the first configuration information.
Step 550: triggering the electric energy storage device to carry out pre-charging.
Step 560: and transmitting a first voltage to the charging pile so that the charging pile can verify through the first voltage.
Step 570: and charging the electric energy storage device by the first voltage provided by the charging pile until the charging is finished.
Through the comparison of the procedures, the charging method provided by the invention has the advantages of simple steps, reduced charging time and improved charging efficiency compared with the existing charging technology.
Further, the existing charging technology needs to convert the voltage provided by the charging pile, which is lower than the first voltage, into the first voltage, resulting in power loss. The charging method provided by the invention does not need the conversion process, so that compared with the prior charging technology, the charging method can reduce the electric energy loss and is beneficial to energy conservation and environmental protection.
In the above embodiment of the present invention, a scheme is provided for charging the electric energy storage device when the charging pile supports the charging at the first voltage. In addition, in some scenarios, the charging capability of the charging post for charging the electrical energy storage device is to support a predetermined voltage charge. In this case, in the charging method provided by the present invention, if it is determined that the charging capability of the charging pile supports the predetermined voltage charging by the insulation detection voltage, the method further includes the steps of:
when the charging capacity of the charging pile is that the charging is supported by the preset voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the charging pile to charge the electric energy storage device through the preset voltage;
and charging the electric energy storage device by the preset voltage provided by the charging pile.
If the charging capacity of the charging pile for charging the electric energy storage device is to support the charging at the preset voltage, the charging pile cannot increase the higher charging voltage after the electric energy storage device is connected with the charging pile. In this case, the second configuration information is transmitted to the charging post in order to satisfy the charging requirement of the electrical energy storage device. After receiving the second configuration information, the charging pile provides the preset voltage for the electric energy storage device according to the second configuration information, and accordingly, the electric energy storage device can be charged through the preset voltage.
Specifically, in the charging process, after the predetermined voltage provided by the charging pile according to the second configuration information is obtained, voltage conversion may be performed on the predetermined voltage, the predetermined voltage is converted into the first voltage, and then the electric energy storage device is charged by the converted first voltage.
In a possible implementation manner, when the predetermined voltage is 330V, and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging pile is to support charging at the predetermined voltage.
Through the scheme of the embodiment, the charging requirement of the electric energy storage device can be still met when the charging capacity of the charging pile is not enough to provide higher charging voltage.
At present, charging piles with different charging capabilities usually exist in the market, and in order to clarify a method for charging through the charging piles with different charging capabilities, the invention provides another embodiment. Referring to fig. 6, another embodiment includes the steps of:
step 610: determining an insulation detection voltage of a charging post after an electrical energy storage device is connected to the charging post, the electrical energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage.
Step 620: and determining the charging capacity of the charging pile through the insulation detection voltage.
The specific execution process of steps 610 to 620 is the same as the specific execution process of steps 110 to 120, and may be referred to each other, which is not described herein again.
Step 630: and determining whether the charging capability of the charging pile supports the first voltage charging, if so, executing the operation of the step 640, and if not, executing the operation of the step 660.
Step 640: when the charging capability of the charging pile supports the first voltage charging, first configuration information is transmitted to the charging pile, and the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage.
Step 650: the electric energy storage device is charged by the first voltage provided by the charging pile.
The specific execution process of steps 640 to 650 is the same as the specific execution process of steps 130 to 140, and may be referred to each other, which is not described herein again.
Step 660: and when the charging capacity of the charging pile does not support the charging at the first voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the electric energy storage device to be charged at the preset voltage.
Step 670: and charging the electric energy storage device by the preset voltage provided by the charging pile.
In the charging method provided by this embodiment, the charging capability of the charging pile is determined in advance according to the insulation detection voltage, and if the charging capability of the charging pile supports the charging at the first voltage, the first configuration information is transmitted to the charging pile, so that the charging pile transmits the electric energy at the first voltage indicated by the first configuration information, thereby realizing that the electric energy storage device is charged at the first voltage, and improving the charging efficiency. In addition, if the charging capacity of the charging pile supports charging through the preset voltage, second configuration information is transmitted to the charging pile so that the charging pile can transmit the electric energy of the preset voltage indicated by the second configuration information, and therefore when the charging pile with different charging capacities is connected, the electric energy storage device can be charged, and the charging requirements under different scenes are met.
The following are examples of apparatus provided by the present invention that may be used to perform method embodiments of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
The embodiment of the invention discloses a charging device. Referring to the schematic structural diagram shown in fig. 7, the charging device 700 includes: a voltage determination module 710, a charging capability determination module 720, an information transmission module 730, and a charging module 740.
The voltage determining module 710 is configured to determine an insulation detection voltage of a charging pile after an electrical energy storage device is connected to the charging pile, where the electrical energy storage device supports charging by a first voltage, and the first voltage is higher than a predetermined voltage;
the charging capability determining module 720 is configured to determine the charging capability of the charging pile according to the insulation detection voltage;
the information transmission module 730 is configured to transmit first configuration information to the charging pile when the charging capability of the charging pile is to support charging at the first voltage, where the first configuration information is used to instruct the charging pile to charge the electric energy storage device through the first voltage;
the charging module 740 is configured to charge the electric energy storage device with the first voltage provided by the charging pile.
In an optional manner, the charging capability determining module 720 is specifically configured to determine, when the insulation detection voltage belongs to a first preset voltage set, that the charging capability of the charging pile supports charging at the first voltage, where voltages included in the first preset voltage set are greater than the predetermined voltage.
In an optional manner, the first voltage is not less than 600V, and the minimum voltage in the first preset voltage set is 500V.
In an optional manner, the voltage determining module 710 is specifically configured to use the voltages at two ends of the charging pile detected during the insulation detection of the charging pile as the insulation detection voltage of the charging pile.
In an alternative manner, the charging device 700 is further configured to trigger the pre-charging of the electrical energy storage device after the transmission of the first configuration information to the charging post.
In an alternative manner, the charging device 700 is further configured to transmit the first voltage for verification to the charging post after the triggering of the pre-charging of the electrical energy storage device.
In an optional manner, after determining the charging capability of the charging post through the insulation detection voltage, the charging device 700 is further configured to transmit second configuration information to the charging post when the charging capability of the charging post is to support charging at the predetermined voltage, where the second configuration information is used to instruct the charging post to charge the electric energy storage device through the predetermined voltage; and charging the electric energy storage device by the preset voltage provided by the charging pile.
In an optional mode, when the predetermined voltage is 330V and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging post is to support charging at the predetermined voltage.
By applying the technical scheme provided by the invention, the charging capacity of the charging pile can be detected in advance through the insulation detection voltage of the charging pile, so that the charging pile can directly provide higher charging voltage for the electric energy storage device when the charging pile can provide higher charging voltage, therefore, the charging scheme provided by the invention can reduce the time consumption in the charging process and improve the charging efficiency.
Further, in the prior art, in the process of converting the lower charging voltage into the higher charging voltage by the voltage conversion circuit, the voltage conversion circuit may cause a loss of electric energy. The charging scheme provided by the invention does not need the voltage conversion circuit to carry out voltage conversion, so that the electric energy loss in the charging process can be reduced, and the electric energy is saved.
Figure 8 shows a schematic structural view of an embodiment of the electric vehicle disclosed by the invention, the specific embodiment of the invention does not limit the specific implementation of the electric vehicle.
As shown in fig. 8, the electric vehicle may include: a processor (processor) 802, a Communications Interface 804, a memory 808, and a Communications bus 808.
Wherein: the processor 802, communication interface 804, and memory 808 communicate with one another via a communication bus 808. A communication interface 804 for communicating with network elements of other devices, such as clients or other servers. The processor 802 is configured to execute the program 810, and may specifically perform the relevant steps in the charging method embodiment described above.
In particular, program 810 may include program code comprising computer-executable instructions.
The processor 802 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the invention. The electric vehicle comprises one or more processors which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
A memory 808 for storing a program 810. Memory 808 may include high-speed RAM memory and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The routine 810 may be specifically invoked by the processor 802 to cause the electric vehicle to perform the following operations:
determining an insulation detection voltage of a charging post after an electric energy storage device is connected to the charging post, the electric energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
determining the charging capacity of the charging pile through the insulation detection voltage;
when the charging capability of the charging pile supports the first voltage charging, transmitting first configuration information to the charging pile, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
the first voltage provided by the charging pile is used for charging the electric energy storage device.
In an optional manner, the determining the charging capability of the charging pile through the insulation detection voltage includes:
when the insulation detection voltage belongs to a first preset voltage set, determining that the charging capacity of the charging pile supports charging of the first voltage, wherein the voltage contained in the first preset voltage set is greater than the preset voltage.
In an optional manner, the first voltage is not less than 600V, and the minimum voltage in the first preset voltage set is 500V.
In an optional manner, the determining the insulation detection voltage of the charging pile includes:
and taking the voltages at the two ends of the charging pile detected during insulation detection of the charging pile as insulation detection voltages of the charging pile.
In an optional manner, after the transmitting the first configuration information to the charging pile, the method further includes:
triggering the electric energy storage device to perform pre-charging.
In an optional manner, after the triggering the pre-charging of the electric energy storage device, the method further includes:
and transmitting the first voltage for verification to the charging pile.
In an optional manner, after the determining, by the insulation detection voltage, the charging capability of the charging pile, the method further includes:
when the charging capacity of the charging pile supports the charging at the preset voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the charging pile to charge the electric energy storage device through the preset voltage;
and charging the electric energy storage device by the preset voltage provided by the charging pile.
In an optional mode, when the predetermined voltage is 330V and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging post is to support charging at the predetermined voltage.
The electric vehicle can detect the charging capacity of the charging pile in advance through the insulation detection voltage of the charging pile, so that the charging pile can directly provide higher charging voltage for the electric energy storage device when the charging pile can provide higher charging voltage, and therefore the charging scheme provided by the invention can reduce the time consumption of the charging process and improve the charging efficiency.
Further, in the prior art, during the process of converting the lower charging voltage into the higher charging voltage by the voltage conversion circuit, the voltage conversion circuit may cause a loss of electric energy. The charging scheme provided by the invention does not need the voltage conversion circuit to carry out voltage conversion, so that the electric energy loss in the charging process can be reduced, and the electric energy is saved.
Embodiments of the present invention provide a computer-readable storage medium, where the storage medium stores at least one executable instruction, and when the executable instruction is executed on a charging device/electric vehicle, the charging device/electric vehicle is caused to perform the charging method in any of the above-mentioned method embodiments.
The executable instructions may be specifically configured to cause the charging device/electric vehicle to perform the following operations:
determining an insulation detection voltage of a charging post after an electric energy storage device is connected to the charging post, the electric energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
determining the charging capacity of the charging pile through the insulation detection voltage;
when the charging capability of the charging pile supports the first voltage charging, transmitting first configuration information to the charging pile, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
the first voltage provided by the charging pile is used for charging the electric energy storage device.
In an optional manner, the determining the charging capability of the charging pile through the insulation detection voltage includes:
when the insulation detection voltage belongs to a first preset voltage set, determining that the charging capacity of the charging pile supports charging of the first voltage, wherein the voltage contained in the first preset voltage set is greater than the preset voltage.
In an optional manner, the first voltage is not less than 600V, and the minimum voltage in the first preset voltage set is 500V.
In an optional manner, the determining the insulation detection voltage of the charging pile includes:
and taking the voltages at the two ends of the charging pile detected during insulation detection of the charging pile as insulation detection voltages of the charging pile.
In an optional manner, after the transmitting the first configuration information to the charging pile, the method further includes:
triggering the electric energy storage device to perform pre-charging.
In an optional manner, after the triggering the pre-charging of the electric energy storage device, the method further includes:
and transmitting the first voltage for verification to the charging pile.
In an optional manner, after the determining the charging capability of the charging post through the insulation detection voltage, the method further includes:
when the charging capacity of the charging pile is that the charging is supported by the preset voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the charging pile to charge the electric energy storage device through the preset voltage;
and charging the electric energy storage device by the preset voltage provided by the charging pile.
In an optional mode, when the predetermined voltage is 330V and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging post is to support charging at the predetermined voltage.
When an executable instruction stored on the computer-readable storage medium provided by the invention is operated, the charging capability of the charging pile can be detected in advance through the insulation detection voltage of the charging pile, so that the charging pile can directly provide higher charging voltage for the electric energy storage device when the charging pile can provide higher charging voltage, therefore, the charging scheme provided by the invention can reduce the time consumption of the charging process and improve the charging efficiency.
Further, in the prior art, in the process of converting the lower charging voltage into the higher charging voltage by the voltage conversion circuit, the voltage conversion circuit may cause a loss of electric energy. When the executable instruction stored in the computer readable storage medium provided by the invention is operated, the voltage conversion circuit is not needed to carry out voltage conversion, so that the electric energy loss in the charging process can be reduced, and the electric energy can be saved.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. In addition, embodiments of the present invention are not directed to any particular programming language.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. Similarly, in the above description of example embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. Where the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. Except that at least some of such features and/or processes or elements are mutually exclusive.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. A charging method, characterized in that the charging method comprises:
determining an insulation detection voltage of a charging post after an electrical energy storage device is connected to the charging post, the electrical energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
determining the charging capacity of the charging pile through the insulation detection voltage;
when the charging capability of the charging pile is to support the first voltage charging, transmitting first configuration information to the charging pile, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
the electric energy storage device is charged by the first voltage provided by the charging pile.
2. The charging method according to claim 1, wherein the determining the charging capability of the charging post through the insulation detection voltage comprises:
when the insulation detection voltage belongs to a first preset voltage set, determining that the charging capacity of the charging pile supports charging of the first voltage, wherein the voltage contained in the first preset voltage set is greater than the preset voltage.
3. The charging method according to claim 2,
the first voltage is not less than 600V, and the minimum voltage in the first preset voltage set is 500V.
4. The charging method according to claim 1, wherein the determining the insulation detection voltage of the charging pile comprises:
and taking the voltages at the two ends of the charging pile detected during insulation detection of the charging pile as insulation detection voltages of the charging pile.
5. The charging method according to any one of claims 1 to 4, further comprising, after the transmitting the first configuration information to the charging post:
triggering the electric energy storage device to perform pre-charging.
6. The charging method according to claim 5, further comprising, after said triggering the pre-charging of the electrical energy storage device:
and transmitting the first voltage for verification to the charging pile.
7. The charging method according to claim 1, further comprising, after the determining the charging capability of the charging pole by the insulation detection voltage,:
when the charging capacity of the charging pile is that the charging is supported by the preset voltage, transmitting second configuration information to the charging pile, wherein the second configuration information is used for indicating the charging pile to charge the electric energy storage device through the preset voltage;
and charging the electric energy storage device by the preset voltage provided by the charging pile.
8. The charging method according to claim 7,
when the predetermined voltage is 330V and the insulation detection voltage is not less than 300V and not more than 500V, the charging capability of the charging post is to support the predetermined voltage charging.
9. A charging device, characterized in that the charging device comprises:
a voltage determination module for determining an insulation detection voltage of a charging post after an electric energy storage device is connected to the charging post, the electric energy storage device supporting charging by a first voltage, the first voltage being higher than a predetermined voltage;
the charging capacity determining module is used for determining the charging capacity of the charging pile through the insulation detection voltage;
the information transmission module is used for transmitting first configuration information to the charging pile when the charging capacity of the charging pile supports the first voltage charging, wherein the first configuration information is used for indicating the charging pile to charge the electric energy storage device through the first voltage;
and the charging module is used for charging the electric energy storage device through the first voltage provided by the charging pile.
10. An electric vehicle, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the charging method of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211035500.XA CN115257419A (en) | 2022-08-26 | 2022-08-26 | Charging method and device and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211035500.XA CN115257419A (en) | 2022-08-26 | 2022-08-26 | Charging method and device and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115257419A true CN115257419A (en) | 2022-11-01 |
Family
ID=83753773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211035500.XA Withdrawn CN115257419A (en) | 2022-08-26 | 2022-08-26 | Charging method and device and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115257419A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022026A (en) * | 2023-02-10 | 2023-04-28 | 浙江极氪智能科技有限公司 | Charging control method, device, equipment and storage medium for charging pile |
| CN116834590A (en) * | 2023-05-23 | 2023-10-03 | 小米汽车科技有限公司 | Control method and device for vehicle charging voltage, electronic equipment and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636950A (en) * | 2015-06-03 | 2018-01-26 | 三菱电机株式会社 | The control method of power-converting device and power-converting device |
| CN109284092A (en) * | 2018-09-20 | 2019-01-29 | 山东电工电气集团新能科技有限公司 | A kind of software implementation method of direct-current charging post monitoring system |
| CN110386024A (en) * | 2019-07-11 | 2019-10-29 | 南京能瑞电力科技有限公司 | A kind of joint charge control method and joint charging system |
| CN110696666A (en) * | 2019-10-15 | 2020-01-17 | 爱驰汽车有限公司 | Charging control system and method for electric vehicle |
| CN112305384A (en) * | 2020-10-14 | 2021-02-02 | 许继电源有限公司 | Charging pile multiple insulation detection control method and system |
| CN112848959A (en) * | 2021-03-25 | 2021-05-28 | 广州小鹏汽车科技有限公司 | Charging control method, charging control device and electric automobile |
| CN113119765A (en) * | 2021-03-09 | 2021-07-16 | 蒋燕 | New energy automobile charging method and system, charging pile and storage medium |
| CN113581006A (en) * | 2021-08-26 | 2021-11-02 | 广州小鹏智慧充电科技有限公司 | Boosting charging method and device and electric automobile |
-
2022
- 2022-08-26 CN CN202211035500.XA patent/CN115257419A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107636950A (en) * | 2015-06-03 | 2018-01-26 | 三菱电机株式会社 | The control method of power-converting device and power-converting device |
| CN109284092A (en) * | 2018-09-20 | 2019-01-29 | 山东电工电气集团新能科技有限公司 | A kind of software implementation method of direct-current charging post monitoring system |
| CN110386024A (en) * | 2019-07-11 | 2019-10-29 | 南京能瑞电力科技有限公司 | A kind of joint charge control method and joint charging system |
| CN110696666A (en) * | 2019-10-15 | 2020-01-17 | 爱驰汽车有限公司 | Charging control system and method for electric vehicle |
| CN112305384A (en) * | 2020-10-14 | 2021-02-02 | 许继电源有限公司 | Charging pile multiple insulation detection control method and system |
| CN113119765A (en) * | 2021-03-09 | 2021-07-16 | 蒋燕 | New energy automobile charging method and system, charging pile and storage medium |
| CN112848959A (en) * | 2021-03-25 | 2021-05-28 | 广州小鹏汽车科技有限公司 | Charging control method, charging control device and electric automobile |
| CN113581006A (en) * | 2021-08-26 | 2021-11-02 | 广州小鹏智慧充电科技有限公司 | Boosting charging method and device and electric automobile |
Non-Patent Citations (1)
| Title |
|---|
| 丁晓伟;王占全;王建兴;秦茹静;: "基于储能系统的公交充电网络建设优化方案", 农村电气化, no. 07, 10 July 2018 (2018-07-10), pages 63 - 65 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116022026A (en) * | 2023-02-10 | 2023-04-28 | 浙江极氪智能科技有限公司 | Charging control method, device, equipment and storage medium for charging pile |
| WO2024164791A1 (en) * | 2023-02-10 | 2024-08-15 | 浙江极氪智能科技有限公司 | Charging control method and apparatus for charging pile, device, and storage medium |
| CN116834590A (en) * | 2023-05-23 | 2023-10-03 | 小米汽车科技有限公司 | Control method and device for vehicle charging voltage, electronic equipment and storage medium |
| CN116834590B (en) * | 2023-05-23 | 2024-06-25 | 小米汽车科技有限公司 | Control method and device for vehicle charging voltage, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115257419A (en) | Charging method and device and electric vehicle | |
| CN109193050B (en) | Active equalization method and device for electric quantity among battery packs | |
| CN110138044B (en) | Power battery charging and discharging control system and method and vehicle | |
| WO2022160187A1 (en) | Power supply control method for power conversion device, and power conversion device | |
| EP4071960A1 (en) | Power conversion device precharging method and power conversion device | |
| US20220239127A1 (en) | Method for pre-charging power conversion device and power conversion device | |
| JP2009042176A (en) | Electromotive vehicle | |
| CN105308825A (en) | Pre-charging and voltage supply system for a DC-AC inverter | |
| CN103238265A (en) | Charging-control device and charging-control method | |
| US20200384884A1 (en) | Battery state determining system, in-vehicle device, server, battery state determining method, and program | |
| KR102644606B1 (en) | Charging method and power conversion device | |
| JP2023550859A (en) | Battery pack charging control method, device, electronic device and storage medium | |
| CN115459380A (en) | Method and device for supplementing power to storage battery, vehicle and storage medium | |
| CN113437728B (en) | Overvoltage protection circuit, control method thereof and battery pack | |
| KR20180063571A (en) | Apparatus for controlling charging of low voltage battery in elcetric vehicle and method thereof | |
| CN116325286A (en) | Charging and discharging device, method for charging battery and charging and discharging system | |
| KR102280630B1 (en) | Apparatus and method for managing charging of vehicle battery | |
| CN115489369B (en) | Charging system, method and device for double-gun direct-current charging pile and terminal equipment | |
| US11427104B2 (en) | Method and apparatus for controlling charging of vehicle battery | |
| CN111137150A (en) | Charging control method and vehicle-mounted charger | |
| CN115276181A (en) | Parallel operation control method, device and equipment of battery pack and storage medium | |
| US11766946B2 (en) | System for charging battery for vehicle | |
| CN116670964A (en) | Battery charging circuit, method, apparatus and storage medium | |
| KR20150049860A (en) | Computations method and computer readable recording medium for vehicle battery remaining capacity available | |
| CN118888886A (en) | BMS identification system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20221101 |
|
| WW01 | Invention patent application withdrawn after publication |