CN110816357B - Charging method, computer device and storage medium - Google Patents
Charging method, computer device and storage medium Download PDFInfo
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- CN110816357B CN110816357B CN201911043043.7A CN201911043043A CN110816357B CN 110816357 B CN110816357 B CN 110816357B CN 201911043043 A CN201911043043 A CN 201911043043A CN 110816357 B CN110816357 B CN 110816357B
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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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charging method, which comprises the steps of acquiring the charging requirement of a newly accessed vehicle; obtaining the charge current to be charged of the newly-accessed vehicle according to the charge requirement; calculating a first current adjustment value or a second current adjustment value according to the quasi-charging current and the limited charging current of a charging gun connected with a newly-accessed vehicle; regulating and controlling the quasi-charging current newly connected to the vehicle and the current charging current connected to the vehicle according to the quasi-charging current and the first current regulating value or according to the quasi-charging current and the second current regulating value; acquiring charging power of a newly accessed vehicle and an accessed vehicle, and obtaining maximum charging efficiency according to the charging power of the newly accessed vehicle, the charging power of the accessed vehicle and the charging power of a charging system; and controlling the newly accessed vehicle and the accessed vehicle to charge according to the charging current corresponding to the maximum charging efficiency. The charging method can improve the charging efficiency and realize the charging intellectualization. The invention further provides a computer device and a storage medium for executing the charging method.
Description
Technical Field
The invention relates to the field of intelligent charging, in particular to a charging method, computer equipment and a storage medium for improving the charging efficiency of a charging system.
Background
With the continuous improvement of the scientific and technological level and the living standard of people, more and more people start to buy vehicles to improve the convenience of life and improve the quality of life. However, due to the increasing capacity of vehicles, the emission of vehicle exhaust has a great influence on the ecological environment. In order to improve the increasingly worsened ecological environment, electric automobiles are produced, the electric automobiles drive the vehicles to run through electric power, vehicle tail gas cannot be generated in the running process, and the electric automobiles have great effects on reducing the vehicle tail gas and improving the environmental pollution.
The battery capacity of present vehicle is generally lower, and the continuation of the journey is shorter, thereby needs frequently to use and fills electric pile and come the use of charging assurance vehicle. In order to guarantee the demand that a plurality of users charge simultaneously, can set up two or even a plurality of guns that charge simultaneously and charge for the vehicle on the partial charging stake to guarantee user's demand of charging. In the present mode that many guns charge, fill electric pile and only can be according to the demand of charging of different vehicles, the demand charging current of vehicle charges for the vehicle promptly, because the efficiency of different vehicles when charging is different, if only come to charge for the vehicle according to the demand of charging of vehicle, then can have some vehicle charging efficiency lower, but demand charging current is great condition again, consequently if directly charge for the vehicle according to demand charging current, then can bring more electric energy waste, will lead to charging system's whole charging efficiency lower, great loss has been caused. Therefore, how to realize efficient charging becomes an important issue for the development of the charging industry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a charging method, a computer device and a storage medium for improving the charging efficiency of a charging system.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a charging method, including:
acquiring the charging requirement of a newly accessed vehicle;
obtaining the quasi-charging current of the newly-accessed vehicle according to the charging requirement;
calculating a first current adjustment value or a second current adjustment value according to the quasi-charging current and the limited charging current of the charging gun connected with the newly-accessed vehicle;
regulating and controlling the quasi-charging current of the newly accessed vehicle and the current charging current of the accessed vehicle according to the quasi-charging current and the first current adjusting value or according to the quasi-charging current and the second current adjusting value;
acquiring charging power of the newly accessed vehicle and the accessed vehicle;
obtaining the maximum charging efficiency of the charging system according to the charging power of the newly accessed vehicle, the charging power of the accessed vehicle and the charging power of the charging system;
and controlling the newly accessed vehicle and the accessed vehicle to charge according to the charging current corresponding to the maximum charging efficiency of the charging system.
In a second aspect, the present invention provides a computer device comprising a memory for storing a computer program and a processor for executing the computer program to cause the computer device to perform the charging method according to the first aspect of the present invention.
In a third aspect, the present invention provides a storage medium for storing a computer program which, when executed by a processor, implements the charging method of the first aspect of the present invention.
The invention has the beneficial effects that:
according to the charging method provided by the invention, when a charging system is newly connected to a vehicle for charging, the charging currents of the newly connected vehicle and the connected vehicle are adjusted so as to obtain the quasi-charging current of the newly connected vehicle and the current charging current of the connected vehicle when the charging efficiency of the charging system is highest, and the newly connected charging system and the connected charging system are controlled for charging, so that the charging power of the charging system is ensured to be maximum, the energy waste in the charging process is avoided, and the charging control intelligence is realized.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention.
FIG. 1 is a flow chart illustrating a charging method according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of a computer device according to another preferred embodiment of the present invention;
FIG. 3 is a block diagram of a storage medium according to another preferred embodiment of the present invention.
Detailed Description
Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, e.g., may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
As shown in fig. 1, a preferred embodiment of the present invention provides a charging method, including the following steps:
step S210: and acquiring the charging requirement of the newly accessed vehicle.
In the present embodiment, in order to facilitate charging for the user, a charging system is installed in a charging station or a community in an urban area to charge the user's vehicle. Further, the charging system at least comprises two charging guns so as to be simultaneously connected to at least two vehicles for charging. It is understood that the charging system may be an ac charging post or a dc charging post.
Further, in this embodiment, when a vehicle is charged by using the charging system, a charging gun on the charging system needs to be connected to a charging port of the vehicle and start charging in a code scanning or card swiping manner, and when a user connects the charging gun to the vehicle and starts charging, the vehicle is a newly-accessed vehicle, and the charging requirement of the newly-accessed vehicle can be obtained. Further, in this embodiment, the charging requirement at least includes a required charging current of the newly-connected vehicle, where the required charging current is a maximum charging current that a battery of the vehicle can bear.
Step S220: and obtaining the quasi-charging current of the newly-accessed vehicle according to the charging requirement.
Further, after the charging requirement of the newly-accessed vehicle is received, the quasi-charging current of the newly-accessed vehicle is required to be obtained according to the required charging current in the charging requirement. Further, in this embodiment, since the charging system has at least two charging guns, and the at least two charging guns are both used for outputting electric energy by the charging system, the charging currents of the at least two charging guns should not exceed the maximum output current, and since the available charging current of the charging system is equal to the difference between the maximum output current of the charging system and the charging current in use, the charging current of the charging gun newly connected to the charging system should not exceed the available charging current of the charging system. It will be appreciated that different charging guns also have a responsive maximum charging current due to their different specifications, and the output current of the charging gun should not exceed the maximum charging current of the charging gun. Therefore, in the present embodiment, a limit charging current is set for each charging gun according to the maximum charging current of the charging gun and the available charging current of the charging system, and the pseudo charging current when the newly-connected vehicle is connected to the charging gun for charging must not exceed the limit charging current of the charging gun, so as to prevent the charging gun or the charging system from being damaged due to an excessive current. Further, when calculating the limited charging current of the charging gun connected to the newly connected vehicle, it is necessary to first obtain the charging current used by the charging system, that is, the sum of the charging currents of the vehicles connected to the charging system, calculate the available charging current of the charging system, and then obtain the limited charging current of the charging gun according to the maximum charging current of the charging gun connected to the newly connected vehicle.
Step S230: and calculating a first current adjustment value or a second current adjustment value according to the quasi-charging current and the limited charging current of the charging gun connected with the newly-accessed vehicle.
Further, after the limited charging current of the charging gun connected to the newly-accessed vehicle is calculated, the required charging current of the newly-accessed vehicle needs to be compared with the limited charging current of the charging gun, so that the quasi-charging current of the newly-accessed vehicle is obtained. It will be appreciated that for charging safety, the charging current should not be greater than the required charging current of the vehicle during charging; further, the charging current should not be greater than the limited charging current of the charging gun. Therefore, the pseudo-charging current is the smaller of the required charging current and the limited charging current of the charging gun.
Further, in this embodiment, the limited charging current is a smaller value of an available charging current of the charging system and a maximum charging current of the charging gun, the available charging current is a difference between the maximum output current and a charging current in use, the charging current in use is a sum of charging currents of vehicles to which the charging system has been connected, and the quasi-charging current of a newly-connected vehicle is a smaller value of the required charging current and the limited charging current of the charging gun. For example: the maximum output current of the charging system is 100A, the charging system is connected to a vehicle A and a vehicle B, wherein the charging current of the vehicle A is 30A, the charging current of the vehicle B is 35A, and then the available charging current is 100A-30A-35A; the vehicle C is a newly-accessed vehicle, the maximum charging current of a charging gun connected with the vehicle C is 40A, the limited charging current of the vehicle connected with the vehicle C is 35A, and if the required charging current of the vehicle C is 40A, the quasi-charging current of the vehicle C is 35A; if the required charging current of the vehicle C is 30A, the intended charging current of the vehicle C is 30A. It can be understood that, in the process of charging the newly-accessed vehicle, the charging system will adjust the quasi-charging current of the newly-accessed vehicle according to the charging efficiency, so that the quasi-charging current is not necessarily the final charging current of the newly-accessed vehicle, but only the process charging current of the newly-accessed vehicle in the process of charging regulation and control.
Further, after a vehicle is newly connected to the charging system, since the charging efficiencies of different vehicles are different, in order to improve the charging efficiency of the charging system, it is necessary to calculate the charging currents of different charging guns allocated to the charging system again, so as to adjust the charging current of the vehicle connected to the charging system and the charging current of the newly connected vehicle, so as to maximize the charging efficiency of the charging system.
Further, in this embodiment, it is necessary to calculate a first current adjustment value or a second current adjustment value according to the quasi-charging current and a limited charging current of a charging gun connected to the newly connected vehicle, adjust the charging current of the connected vehicle of the charging system and the charging current of the newly connected vehicle according to the first current adjustment value or the second current adjustment value, and calculate the charging efficiency of the charging system after the charging current is adjusted, so as to maximize the charging efficiency.
Further, in this embodiment, when performing charging regulation, it is necessary to increase the charging current of the newly connected vehicle and decrease the current charging current of the connected vehicle according to the first current adjustment value or the second current adjustment value, so that charging regulation can be performed only when the pseudo-charging current of the newly connected vehicle is smaller than the limited charging current of the charging gun connected to the newly connected vehicle, and therefore, before performing charging regulation, it is necessary to compare the pseudo-charging current of the newly connected vehicle and the limited charging current of the charging gun connected to the newly connected vehicle, calculate a first current adjustment value or a second current adjustment value according to a comparison result, and perform charging regulation according to the first current adjustment value or the second current adjustment value.
Further, in this embodiment, in the process of performing charging regulation, the intended charging current of the newly connected vehicle must not be greater than the limited charging current of the charging gun connected to the newly connected vehicle, otherwise, the vehicle or the charging system may be damaged. Therefore, in the regulation process, the relationship between the intended charging current and the limited charging current of the charging gun needs to be judged, so as to prevent the situation that the intended charging current of the newly-connected vehicle exceeds the limited charging current of the charging gun connected with the newly-connected vehicle during regulation. Further, if the charging current to be charged of the newly-accessed vehicle does not exceed the limit charging current after the first current adjustment value is adjusted, adjusting and controlling according to the first current adjustment value; if the to-be-charged current of the newly-accessed vehicle exceeds the limit charging current after the first current adjustment value is adjusted, adjusting and controlling according to the second current adjustment value; if the quasi-charging current of the newly-accessed vehicle is equal to the limited charging current, charging regulation is not needed, otherwise, the quasi-charging current exceeds the limited charging current after regulation, so that potential safety hazards are brought.
Further, in the present embodiment, the first current adjustment value is calculated when the pseudo-charging current of the newly-inserted vehicle is smaller than the limit charging current of the charging gun to which the newly-inserted vehicle is connected. It can be understood that, in the present embodiment, in order to ensure the accuracy and efficiency of current adjustment, the first current adjustment value is related to the pseudo-charging current of the newly-connected vehicle and the maximum charging current of the charging gun, that is, when the pseudo-charging current of the newly-connected vehicle and the maximum charging current of the charging gun are lower, the first current adjustment value is relatively lower; when the quasi-charging current of the newly-accessed vehicle and the maximum charging current of the charging gun are larger, the first current adjustment value is relatively higher, so that the efficiency and the precision of current regulation are ensured. Further, when the quasi-charging current is smaller than the limited charging current of the charging gun connected with the newly-accessed vehicle and the limited charging current of the charging gun connected with the newly-accessed vehicle is not larger than a first preset value, obtaining that the first current adjustment value is the product of the first preset value and a preset coefficient; and when the quasi-charging current is greater than a first preset value and not greater than the limited charging current of the charging gun connected with the newly-accessed vehicle and the limited charging current of the charging gun connected with the newly-accessed vehicle is not greater than a second preset value, obtaining that the first current adjustment value is the product of the second preset value and the preset coefficient. Further, in this embodiment, the first preset value is 6A, the second preset value is 63A, and the preset coefficient is 1%. It can be understood that the lower the preset coefficient is, the smaller the amplitude of the charging regulation is, the more the charging regulation is performed, and thus the accuracy and precision of the calculated charging efficiency are higher. However, when the preset coefficient is low, the number of times of charging regulation is increased, so that the regulation time possibly required is long, and therefore, in order to ensure the precision and efficiency of regulation, the preset coefficient may be set as required, for example, the preset coefficient may be 5%, 10%, or the like. Further, for example: when the limited charging current of the charging gun connected with the newly-accessed vehicle is 5A, and the quasi-charging current of the newly-accessed vehicle is 4A, the first current adjustment value is 6A-1% ═ 0.06A; when the limited charging current of the charging gun connected with the newly connected vehicle is 32A and the quasi-charging current of the newly connected vehicle is 30A, the first current adjustment value is 63A × 1% — 0.63A.
Further, after the first current adjustment value is calculated, it is further determined whether the pseudo-charging current can be adjusted to the first current adjustment value, so that the pseudo-charging current of the newly-connected vehicle is further added to the first current adjustment value to determine whether the pseudo-charging current is greater than the limited charging current. It can be understood that if the quasi-charging current of the accessed vehicle and the first current adjustment value are larger than the quasi-charging current, it indicates that the quasi-charging current will exceed the limited charging current of the charging gun after the charging regulation is performed, so that the quasi-charging current is not allowed to be increased by the first current adjustment value, but only the quasi-charging current is increased by the second current adjustment value; if the sum of the quasi-charging current of the newly-accessed vehicle and the first current adjustment value is not larger than the limited charging current of the charging gun, the quasi-charging current will not exceed the limited charging current of the charging gun after the charging regulation is carried out, and therefore the quasi-charging current is allowed to be increased by the first current adjustment value.
Therefore, in this embodiment, when the sum of the pseudo-charging current of the newly connected vehicle and the first current adjustment value is not greater than the limited charging current of the charging gun connected to the newly connected vehicle, it is necessary to calculate a first current ramp-up target value and at least one first current ramp-down target value according to the first current adjustment value and transmit the first current ramp-up target value and at least one first current ramp-down target value. Further, in this embodiment, the first current increasing target value is a sum of a pseudo-charging current of the newly-connected vehicle and the first current adjusting value, the first current decreasing target value is a difference between a current charging current of the connected vehicle and a third current adjusting value, and the third current adjusting value is a ratio of the first current adjusting value to the number of the connected vehicles. For example: the first current adjustment value is 0.63A, the intended charging current of the newly-connected vehicle is 6A, the newly-connected vehicle is 1, and the current charging current is 10A, then the first current ramp-up target value is 6A +0.63A ═ 6.63A, the third current adjustment value is 0.63A/1 ═ 0.63A, and the first current ramp-down target value is 6A-0.63A ═ 5.37A; if the newly-connected vehicles are 2 vehicles, the current charging current of one vehicle is 10A, and the current charging current of the other vehicle is 9A, the third current adjustment value is 0.63A/3-0.21A, and since the two vehicles are currently connected, the first current reduction target value is 2, one current reduction target value is 10A-0.21A-9.79A, and the other current reduction target value is 9A-0.21A-8.79A.
Further, if the sum of the quasi-charging current of the newly-accessed vehicle and the first current adjustment value is greater than the limited charging current of the charging gun connected to the newly-accessed vehicle, it indicates that the quasi-charging current will exceed the limited charging current of the charging gun after the charging regulation is performed, so that the quasi-charging current is not allowed to be increased by the first current adjustment value, and at this time, the second current adjustment value needs to be calculated to perform the charging regulation according to the second current adjustment value. Further, when the sum of the intended charging current of the newly-accessed vehicle and the first current adjustment value is larger than the limited charging current of a charging gun connected with the newly-accessed vehicle, a second current adjustment value is calculated, a second current rising target value and at least one second current falling target value are calculated according to the second current adjustment value, and the second current rising target value and at least two first current falling target values are sent. Further, in this embodiment, the second current adjustment value is a difference between a limit charging current of a charging gun connected to the newly connected vehicle and a pseudo charging current of the newly connected vehicle. For example: the required charging current of the vehicle is 30A, the maximum charging current of the charging gun connected with the newly connected vehicle is 45A, the first current adjustment value is 0.63A, the intended charging current of the newly connected vehicle is 29.5A, the limited charging current of the charging gun connected with the newly connected vehicle is 30A, and the second current adjustment value is 30A-29.5A-0.5A. Further, in this embodiment, the second current increasing target value is a sum of a pseudo-charging current of the newly-connected vehicle and the second current adjusting value, the second current decreasing target value is a difference between a current charging current of the connected vehicle and a fourth current adjusting value, and the fourth current adjusting value is a ratio of the second current adjusting value to the number of the connected vehicles. For example: the second current adjustment value is 0.5A, the intended charging current of the newly-connected vehicle is 8A, the connected vehicle is 1, and the charging current is 11A, then the second current rising target value is 8A + 0.5A-8.5A, the fourth current adjustment value is 0.5A/1-0.5A, and the second current falling target value is 11A-0.5A-10.5A; if the number of the connected vehicles is 2, and 1 charging current is 11A, and another charging current is 12A, the fourth current adjustment value is 0.5A/2-0.25A, the second current drop target values are 2, one current drop target value is 11A-0.25A-9.75A, and another current drop target value is 12A-0.25A-11.75A.
Further, if the intended charging current of the newly connected vehicle is equal to the limited charging current of the charging gun connected to the newly connected vehicle, it indicates that the charging regulation cannot be performed at this time, and therefore the first current adjustment value and the second current adjustment value are not calculated, and the first current rising target value or the first current falling target value or the second current rising target value or the second current falling target value is not sent.
Step S240: and regulating and controlling the quasi-charging current of the newly accessed vehicle and the current charging current of the accessed vehicle according to the quasi-charging current and the first current adjusting value or according to the quasi-charging current and the second current adjusting value.
Further, after the first current adjustment value is calculated, a first current rising target value and at least one current falling target value need to be calculated according to the first current adjustment value, the newly-connected vehicle is controlled to be charged according to the first current rising target value, and the connected vehicles are respectively controlled to be charged according to the at least one first current falling target value.
Further, after the second current adjustment value is calculated, a second current rising target value and at least two current falling target values need to be calculated according to the second current adjustment value, the newly-connected vehicle is controlled to be charged according to the second current rising target value, and the connected vehicles are respectively controlled to be charged according to the at least one second current falling target value.
Further, when the first current rising target value or the first current falling target value or the second current rising target value or the second current falling target value is not received, the regulation and control of the quasi-charging current of the newly-accessed vehicle and the current charging current of the accessed vehicle are stopped, and then the charging regulation and control are finished. It can be understood that when the intended charging current of the newly-accessed vehicle is increased to the limited charging current of the charging gun connected with the newly-accessed vehicle, the charging regulation is finished.
Further, in this embodiment, the current to be charged of the newly connected vehicle is adjusted up once and the current charging current of the connected vehicle is adjusted down once, so that one-time charging regulation is completed.
Step S250: and acquiring the charging power of the newly accessed vehicle and the accessed vehicle, and obtaining the maximum charging efficiency according to the charging power of the newly accessed vehicle, the charging power of the accessed vehicle and the charging power of a charging system.
Further, after charging regulation and control are completed each time, the charging power of the newly accessed vehicle and the charging power of the accessed vehicle are obtained, so that the charging efficiency after the charging regulation and control is calculated according to the charging power of the newly accessed vehicle, the charging power of the accessed vehicle and the output power of the charging system. For example: after the regulation and control of charging, the charging power of newly-accessed vehicle is 20KW, the charge efficiency who has accessed the vehicle is 50KW, charging system's output is 100KW, then charge efficiency is (20KW +50KW)/100KW 70%. Further, after the regulation and control are finished, the multiple charging efficiencies of the charging system after the regulation and control are compared, and the maximum charging efficiency of the charging system is obtained. For example, the calculated charging efficiency is 80%, 81%, 85%, 90%, and the maximum charging efficiency of the charging system is 90%.
Step S260: and controlling the newly accessed vehicle and the accessed vehicle to charge according to the charging current corresponding to the maximum charging efficiency.
Further, after the charging efficiency of the charging system is calculated each time, the quasi-charging current of the newly-accessed vehicle and the current charging current of the accessed vehicle corresponding to the charging power are correspondingly stored, and after the maximum charging efficiency of the charging system is obtained, the newly-accessed vehicle and the accessed vehicle are controlled to be charged according to the quasi-charging current of the newly-accessed vehicle and the current charging current of the accessed charging system corresponding to the maximum charging efficiency. For example: the maximum charging efficiency of the charging system is 90%, the corresponding planned charging current of a newly-accessed vehicle is 30A, the current charging current of the accessed vehicle is 25A, the newly-accessed vehicle is controlled to be charged according to 30A, and meanwhile the accessed vehicle is controlled to be charged according to 25A, so that the charging system can be ensured to keep the maximum charging efficiency to charge the vehicle, and the charging efficiency of the charging system is improved.
In summary, the charging method according to the embodiment can adjust the charging currents of the newly-accessed vehicle and the accessed vehicle when the charging system is newly accessed to the vehicle for charging, so as to obtain the pseudo-charging current of the newly-accessed vehicle and the current charging current of the accessed vehicle when the charging efficiency of the charging system is the highest, and control the newly-accessed vehicle and the accessed vehicle for charging, thereby ensuring the charging power of the charging system to be the maximum, avoiding energy waste in the charging process, and realizing charging control intellectualization.
Referring to fig. 2, another preferred embodiment of the present invention provides a computer apparatus 300, wherein the user equipment includes: a memory 310, a computer program 320 stored on the memory, and a processor 330, the processor 330 running the computer program 320 to cause the computer device to perform the charging method described above. The charging method can refer to the above embodiments, and details are not repeated herein.
Referring to fig. 3, another preferred embodiment of the present invention provides a storage medium 400, wherein the storage medium 400 stores a computer program 410, and the computer program 410 is executed by a processor to implement the charging method as described above. The charging method can refer to the above embodiments, and details are not repeated herein.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by hardware instructions of a computer program, which may be stored in a non-volatile computer-readable storage medium, and when the computer program is executed by a processor, the computer program may include the processes of the above embodiments of the methods. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, other various changes and modifications can be made according to the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the present invention.
Claims (17)
1. A method of charging, comprising:
acquiring the charging requirement of a newly accessed vehicle;
obtaining the quasi-charging current of the newly-accessed vehicle according to the charging requirement;
calculating a first current adjustment value or a second current adjustment value according to the quasi-charging current and the limited charging current of the charging gun connected with the newly-accessed vehicle;
regulating and controlling the quasi-charging current of the newly accessed vehicle and the current charging current of the accessed vehicle according to the quasi-charging current and the first current adjusting value or according to the quasi-charging current and the second current adjusting value;
acquiring the charging power of the newly accessed vehicle and the accessed vehicle, and obtaining the maximum charging efficiency according to the charging power of the newly accessed vehicle, the charging power of the accessed vehicle and the charging power of a charging system;
controlling the newly accessed vehicle and the accessed vehicle to charge according to the charging current corresponding to the maximum charging efficiency;
wherein the calculating a first current adjustment value or a second current adjustment value according to the intended charging current and a limited charging current of a charging gun connected to the newly accessed vehicle further comprises:
comparing the required charging current of the newly-accessed vehicle with the limited charging current of a charging gun connected with the newly-accessed vehicle, and obtaining that the quasi-charging current of the newly-accessed vehicle is the smaller value of the required charging current and the limited charging current of the charging gun, wherein the limited charging current is the smaller value of the available charging current of the charging system and the maximum charging current of the charging gun connected with the newly-accessed vehicle;
when the quasi-charging current of the newly-accessed vehicle is smaller than the limited charging current of a charging gun connected with the newly-accessed vehicle, calculating the first current adjustment value;
and when the quasi-charging current is smaller than the limited charging current of the charging gun connected with the newly-accessed vehicle and the limited charging current of the charging gun connected with the newly-accessed vehicle is not larger than a first preset value, the first current adjustment value is the product of the first preset value and a preset coefficient.
2. The charging method according to claim 1, wherein the obtaining of the charging power of the newly-accessed vehicle and the accessed vehicle further comprises: and acquiring the charging power of the newly accessed vehicle and the charging power of the accessed vehicle after each regulation and control.
3. The charging method according to claim 2, wherein the deriving the maximum charging efficiency of the charging system according to the charging power of the newly-accessed vehicle, the charging power of the accessed vehicle, and the charging power of the charging system further comprises:
and calculating the charging efficiency of the charging system after receiving the charging power of the newly accessed vehicle and the accessed vehicle each time, wherein the charging efficiency is the ratio of the used charging power to the output power of the charging system, and the used charging power is the sum of the charging power of the newly accessed vehicle and the charging power of the accessed vehicle.
4. The charging method of claim 1, wherein the available charging current of the charging system is a difference between a maximum output current of the charging system and a charging current in use of the charging system.
5. The charging method of claim 1, wherein the calculating a first current adjustment value or a second current adjustment value based on the intended charging current and a limited charging current of a charging gun connected to the newly-connected vehicle further comprises:
and when the quasi-charging current is greater than a first preset value and not greater than the limited charging current of the charging gun connected with the newly-accessed vehicle, and the limited charging current of the charging gun connected with the newly-accessed vehicle is not greater than a second preset value, obtaining that the first current adjustment value is the product of the second preset value and a preset coefficient.
6. The charging method according to claim 5, wherein the first preset value is 6A, the second preset value is 63A, and the preset coefficient is 1%.
7. The charging method of claim 1, wherein the calculating a first current adjustment value or a second current adjustment value based on the intended charging current and a limited charging current of a charging gun connected to the newly-connected vehicle further comprises:
and when the sum of the pre-charging current of the newly-accessed vehicle and the first current adjustment value is not more than the limited charging current of a charging gun connected with the newly-accessed vehicle, calculating a first current increasing target value and at least one first current decreasing target value.
8. The charging method according to claim 7, wherein the regulating the intended charging current of the newly-connected vehicle and the current charging current of the connected vehicle according to the intended charging current and the first current adjustment value or according to the intended charging current and the second current adjustment value further comprises:
and when the first current increasing target value and the at least one first current decreasing target value are received, the newly accessed vehicle is controlled to be charged according to the first current increasing target value, and the accessed vehicle is respectively controlled to be charged according to the at least one first current decreasing target value.
9. The charging method according to claim 7, wherein the first current ramp-up target value is a sum of a current to be charged of the newly-connected vehicle and the first current adjustment value, the first current ramp-down target value is a difference between a current charging current of the connected vehicle and a third current adjustment value, and the third current adjustment value is a ratio of the first current adjustment value to the number of the connected vehicles.
10. The charging method of claim 1, wherein the calculating a first current adjustment value or a second current adjustment value based on the intended charging current and a limited charging current of a charging gun connected to the newly-connected vehicle further comprises:
and when the quasi-charging current of the newly-accessed vehicle is smaller than the limited charging current of the charging gun connected with the newly-accessed vehicle and the sum of the quasi-charging current of the newly-accessed vehicle and the first current adjustment value is larger than the limited charging current of the charging gun connected with the newly-accessed vehicle, calculating the second current adjustment value.
11. The charging method of claim 10, wherein the second current adjustment value is a difference between a limited charging current of a charging gun connected to the newly-joined vehicle and a pseudo-charging current of the newly-joined vehicle.
12. The charging method of claim 11, wherein the calculating a first current adjustment value or a second current adjustment value based on the intended charging current and a limited charging current of a charging gun connected to the newly-connected vehicle further comprises:
and when the quasi-charging current of the newly-accessed vehicle is smaller than the limited charging current of the charging gun connected with the newly-accessed vehicle and the sum of the quasi-charging current of the newly-accessed vehicle and the first current adjustment value is larger than the limited charging current of the charging gun connected with the newly-accessed vehicle, calculating a second current regulation and rise target value and at least one second current regulation and fall target value.
13. The charging method according to claim 12, wherein the regulating the intended charging current of the newly-connected vehicle and the current charging current of the connected vehicle according to the intended charging current and the first current adjustment value or according to the intended charging current and the second current adjustment value further comprises:
and when the second current increasing target value and the at least one second current decreasing target value are received, controlling the newly accessed vehicle to charge according to the second current increasing target value, and controlling the accessed vehicle to charge respectively according to the at least one second current decreasing target value.
14. The charging method according to claim 13, wherein the second current ramp-up target value is a sum of a current to be charged of the newly-connected vehicle and the second current adjustment value, the second current ramp-down target value is a difference between a current charging current of the connected vehicle and a fourth current adjustment value, and the fourth current adjustment value is a ratio of the second current adjustment value to the number of the connected vehicles.
15. The charging method according to claim 3, further comprising: and when the quasi-charging current of the newly-accessed vehicle is equal to the limited charging current of a charging gun connected with the newly-accessed vehicle, the first current adjustment value and the second current adjustment value are not calculated.
16. A computer device, comprising:
a memory for storing a computer program; and
a processor for executing the computer program to perform the charging method of any one of claims 1 to 15.
17. A storage medium storing a computer program which, when executed by a processor, implements the charging method of any one of claims 1-15.
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| CN113135108B (en) * | 2020-07-30 | 2022-08-19 | 长城汽车股份有限公司 | Charging control method and system and vehicle |
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| CN108340805A (en) * | 2018-03-27 | 2018-07-31 | 西安特锐德智能充电科技有限公司 | A kind of alternating-current charging pile and its power distribution method |
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| US9783062B2 (en) * | 2012-01-23 | 2017-10-10 | Current Ways, Inc. | Charger network having a varying master |
| CN104734304A (en) * | 2015-04-14 | 2015-06-24 | 青岛海汇德电气有限公司 | Electric vehicle charging control method, device and charging system |
| CN105720660A (en) * | 2016-04-21 | 2016-06-29 | 北京智充科技有限公司 | Multi-gun direct current charging pile system of electric automobile and using method of multi-gun direct current charging pile system |
| CN106143198B (en) * | 2016-07-20 | 2018-04-17 | 深圳英宝莱科技有限公司 | A kind of electric automobile direct-current charging post and control method with multiple charging ports |
| CN110329089B (en) * | 2019-06-28 | 2021-11-02 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Charging regulation and control system, charging method, computer equipment and storage medium |
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| CN108340805A (en) * | 2018-03-27 | 2018-07-31 | 西安特锐德智能充电科技有限公司 | A kind of alternating-current charging pile and its power distribution method |
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Effective date of registration: 20210517 Address after: 201613 301 Rong Le Dong Road, Songjiang District, Shanghai. Patentee after: Hengda hengchi New Energy Vehicle Research Institute (Shanghai) Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: HENGDA SMART CHARGING TECHNOLOGY Co.,Ltd. |