WO2023092793A1 - 一种充电桩电流控制方法及相关装置 - Google Patents

一种充电桩电流控制方法及相关装置 Download PDF

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Publication number
WO2023092793A1
WO2023092793A1 PCT/CN2021/141297 CN2021141297W WO2023092793A1 WO 2023092793 A1 WO2023092793 A1 WO 2023092793A1 CN 2021141297 W CN2021141297 W CN 2021141297W WO 2023092793 A1 WO2023092793 A1 WO 2023092793A1
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WIPO (PCT)
Prior art keywords
current
charging gun
temperature
fan
charging
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PCT/CN2021/141297
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English (en)
French (fr)
Inventor
张金磊
刘涛
刘友恒
朱建国
马道停
黄亚标
Original Assignee
深圳市永联科技股份有限公司
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Publication of WO2023092793A1 publication Critical patent/WO2023092793A1/zh

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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
    • 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
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging 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
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the application relates to the technical field of charging piles, in particular to a charging pile current control method and related devices. .
  • the charging gun is a key component of the charging pile, and its allowable charging current is mainly limited by its heat dissipation conditions and working ambient temperature. Under different environmental conditions, the output current of the charging gun can reach different values.
  • the traditional control method of the charging pile directly converts the given value of the charging gun current into the corresponding output current of the charging gun in a step-by-step manner, and limits the value according to the maximum output current of the charging gun.
  • this control method can meet the basic functional requirements of the charging pile operation, this control method causes the output current of the charging gun to work within a limited range, even if the demand current of the electric vehicle exceeds the maximum output current of the charging gun. There is no more regulation, and the charging method is inflexible.
  • the purpose of the present application is to provide a charging pile current control method and a related device, aiming at improving the flexibility of charging the charging pile.
  • an embodiment of the present application provides a charging pile current control method, which is applied to a processor in the charging pile, the charging pile includes a processor and a charging gun, the processor is connected to the charging gun, and the Methods include:
  • the first setting parameter is an initial setting value of the output current of the charging gun
  • the first current adjustment amount of the charging gun is determined, and the first current adjustment amount is used to indicate the adjustment amount of the charging pile to the first setting parameter when the charging gun meets the temperature control condition of the fan.
  • the fan temperature control condition is used to characterize that the fan temperature of the charging gun fan is kept within the first preset range;
  • the first reference current is the output current of the charging pile when the temperature control condition of the charging gun is satisfied
  • the second setting parameter is used for Indicates the output current setting value of the charging pile when the fan temperature control condition is met
  • the first reference current is the current with a smaller value among the second setting parameter and the maximum current
  • the charging gun temperature control The condition is used to characterize that the muzzle temperature of the charging gun remains within the second preset range
  • the charging gun is controlled to output a corresponding output current according to the output current setting parameter.
  • the embodiment of the present application provides a charging pile current control device, which is applied to a charging pile, and the device includes:
  • an acquisition unit configured to acquire a first setting parameter of the charging gun, the first setting parameter being the initial setting value of the output current of the charging gun, and used to acquire the actual current of the charging gun, the The actual current is the output current of the charging gun at the current moment;
  • a calculation unit configured to determine a first current adjustment amount of the charging gun, and the first current adjustment amount is used to instruct the charging pile to set the first setting parameter when the charging gun meets the fan temperature control condition;
  • the adjustment amount of the fan temperature is used to represent that the fan temperature of the charging gun fan is kept within the first preset range; calculation is performed according to the first setting parameter and the first current adjustment amount to obtain the second setting parameters; and used to calculate the maximum current of the charging gun; and used to perform proportional adjustment and integral adjustment according to the first reference current and the actual current, and calculate the output current setting parameters of the charging gun;
  • a comparison unit configured to determine a second setting parameter and a first reference current in the maximum current, wherein the first reference current is the output current of the charging pile when the temperature control condition of the charging gun is satisfied, and the first reference current is
  • the second setting parameter is used to indicate the set value of the output current of the charging pile when the fan temperature control condition is met, and the first reference current is the current with a smaller value among the second setting parameter and the maximum current, so
  • the temperature control condition of the charging gun is used to characterize that the muzzle temperature of the charging gun remains within the second preset range;
  • a control unit configured to control the charging gun to output a corresponding output current according to the output current setting parameters.
  • the embodiment of the present application provides an electronic device, including a processor and a memory, the memory is used to store one or more programs, and is configured to be executed by the processor, the program includes Instructions for the steps in the method as described in the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes the computer to execute the instructions of the steps in the method described in the first aspect .
  • the charging pile current control method and related devices described in the embodiments of the present application are applied to the processor in the charging pile, and the charging pile includes a processor and a charging gun, and the processor and the charging gun connection, the method includes: acquiring the first setting parameter of the charging gun, the first setting parameter being the initial setting value of the output current of the charging gun; determining the first current adjustment amount of the charging gun , the first current adjustment amount is used to indicate the adjustment amount of the charging pile to the first setting parameter when the charging gun meets the fan temperature control condition, and the fan temperature control condition is used to characterize the fan temperature of the charging gun The temperature of the fan is kept within the first preset range; calculation is performed according to the first setting parameter and the first current adjustment value to obtain the output current setting parameter; according to the output current setting parameter, the charging gun is controlled to output a corresponding Output current.
  • the embodiment of the present application adjusts the output current according to the temperature, so as to output different output currents according to different temperature conditions, so as to achieve the purpose of flexibly adjusting the
  • Fig. 1 is a schematic structural diagram of a charging pile provided by an embodiment of the present application
  • Fig. 2 is a schematic flowchart of a charging pile current control method provided by an embodiment of the present application
  • Fig. 3 is a schematic diagram of the muzzle temperature change of the charging gun provided by the embodiment of the present application.
  • Fig. 4 is a schematic structural diagram of a charging pile current control device provided in an embodiment of the present application.
  • Fig. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • At least one in this application means one or more, and multiple means two or more.
  • describing the association relationship of associated objects means that there may be three kinds of relationships, for example, A and/or B, which may mean: A exists alone, A and B exist at the same time, and B exists alone, where A , B can be singular or plural.
  • the character "/" generally indicates that the contextual objects are an "or” relationship.
  • At least one (item) of the following” or similar expressions refer to any combination of these items, including any combination of single item(s) or plural item(s).
  • At least one item (unit) of a, b or c can represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein a, b, c
  • Each of the can be itself an element, or a collection containing one or more elements.
  • the PI regulator is a linear controller, which forms a control deviation based on the given value and the actual output value, and uses the proportional and integral of the deviation to form a control quantity through linear combination to control the controlled object.
  • PI regulator includes proportional regulation and integral regulation.
  • Proportional adjustment function respond to the deviation of the system in proportion. Once the system deviates, the proportional adjustment will immediately produce an adjustment effect to reduce the deviation. A large proportional effect can speed up adjustment and reduce errors, but an excessively large ratio will reduce the stability of the system and even cause system instability.
  • Integral adjustment function to eliminate the steady-state error of the system and improve the error-free degree. Because there is an error, the integral adjustment is carried out until there is no difference, the integral adjustment stops, and the integral adjustment outputs a constant value.
  • the strength of the integral action depends on the integral time constant Ti, the smaller the Ti, the stronger the integral action. Conversely, if Ti is large, the integral effect is weak, adding integral adjustment can reduce the stability of the system and slow down the dynamic response.
  • the integral action is often combined with the other two regulation laws to form a PI regulator or a PID regulator.
  • the charging gun is a key component of the charging pile, and its allowable charging current is mainly limited by its heat dissipation conditions and working ambient temperature. Under different environmental conditions, the output current of the charging gun can reach different values.
  • the traditional control method of the charging pile directly converts the given value of the charging gun current into the corresponding output current of the charging gun in a step-by-step manner, and limits the value according to the maximum output current of the charging gun.
  • this control method can meet the basic functional requirements of the charging pile operation, this control method causes the output current of the charging gun to work within a limited range, even if the demand current of the electric vehicle exceeds the maximum output current of the charging gun. There is no more regulation, and the charging method is inflexible.
  • the present application provides a charging pile current control method and a related device, which will be described in detail below.
  • FIG. 1 is a schematic structural diagram of a charging pile 10 provided in the present application.
  • the charging pile 10 includes a processor 110 and a charging gun 120 .
  • the processor 110 is connected to the charging gun 120 .
  • the charging gun 120 is used to connect with the charging interface of the electric vehicle, and then charge the electric vehicle.
  • the charging interface is connected to the vehicle battery chip of the electric vehicle, and the power management is performed by the vehicle battery chip.
  • the car's vehicle battery is charged.
  • the processor 110 may be an MCU, a CPU, an FPGA, etc., and no unique limitation is made here.
  • the present application provides a charging pile current control method, which is applied to the processor in the charging pile, the charging pile includes a processor and a charging gun, and the processor is connected to the charging gun, so
  • the methods described include:
  • Step 201 Obtain a first setting parameter of the charging gun, where the first setting parameter is an initial setting value of the output current of the charging gun;
  • Step 202 Determine the first current adjustment amount of the charging gun, the first current adjustment amount is used to instruct the charging pile to adjust the first setting parameter when the charging gun meets the fan temperature control condition amount, the fan temperature control condition is used to characterize that the fan temperature of the fan of the charging gun is kept within the first preset range;
  • Step 203 performing calculations according to the first setting parameter and the first current adjustment amount to obtain a second setting parameter
  • Step 204 calculating the maximum current of the charging gun
  • Step 205 Determine the second setting parameter and the first reference current in the maximum current, wherein the first reference current is the output current of the charging pile when the temperature control condition of the charging gun is satisfied, and the second setting The parameter is used to indicate the set value of the output current of the charging pile when the fan temperature control condition is satisfied, the first reference current is the current with a smaller value among the second current and the maximum current, and the charging gun
  • the temperature control condition is used to characterize that the muzzle temperature of the charging gun remains within the second preset range;
  • Step 206 acquiring the actual current of the charging gun, the actual current being the output current of the charging gun at the current moment;
  • Step 207 Perform proportional adjustment and integral adjustment according to the first reference current and the actual current, and calculate the output current setting parameters of the charging gun;
  • Step 208 controlling the charging gun to output a corresponding output current according to the output current setting parameters.
  • the charging gun fan is used to dissipate heat from the muzzle of the charging gun, and heat will also be generated during the operation of the charging gun fan. Therefore, it is necessary to control the temperature of the charging gun fan to ensure that the temperature of the fan is maintained within the first preset range.
  • the first setting parameter is the input current rating of the vehicle battery chip, which is obtained from the vehicle charging chip when the charging gun is connected to the charging interface of the electric vehicle.
  • the maximum value of the output current of the charging gun cannot exceed the first setting parameter.
  • the muzzle of the charging gun will accumulate heat during the process of outputting current, and the time for the heat to reach the highest temperature is different for different output currents.
  • the output current needs to be adjusted in real time according to the temperature of the muzzle to ensure that the gun The mouth temperature remains within the second preset range.
  • the maximum temperature of 90°C as an example, when the output current is 350A, it takes about 29 minutes to reach 90°C; when the output current is 400A, it takes about 16 minutes to reach 90°C; when the output current is 450A, it takes about 10 minutes to reach 90°C; when the output current is 500A, it takes about 7 minutes to reach 90°C.
  • the charging gun by fully considering the operating capacity of the charging gun fan and the temperature of the fan outlet, and collecting the temperature of the charging gun head in real time, it is ensured that the charging gun works within a reliable temperature range, ensuring the safety, reliability and reliability of charging.
  • the service life of the internal components of the charging pile adopts the main process of charging demand current, taking into account the dynamic adjustment function of the temperature of the fan and the temperature of the charging gun head, and improves the output current of the charging pile as much as possible; without changing the hardware of the charging pile itself
  • This solution is simple and easy to use. It can be implemented regardless of the existing charging piles or the new charging piles deployed in the future, realizing the flexible adjustment of the charging gun; at the same time, different maximum output currents can be set according to the power supply requirements of different electric vehicles.
  • the determining the first current adjustment amount of the charging gun includes: calculating a fan pulse error; and determining the first current adjustment amount according to the fan pulse error.
  • the fan pulse error is the offset of the fan pulse signal, which is calculated according to the temperature of the outlet of the fan of the charging gun.
  • the first current adjustment amount for the first setting parameter is calculated according to the temperature of the tuyere of the fan of the charging gun.
  • the calculation of fan pulse error includes: acquiring a temperature threshold of the tuyere, the threshold of the temperature of the tuyere is the maximum value of the temperature of the tuyere of the fan of the charging gun; acquiring the actual temperature value of the tuyere of the fan of the charging gun; according to the Calculate the air outlet temperature error value based on the given value of the tuyere temperature and the actual temperature value of the tuyere temperature; calculate the fan pulse control value according to the tuyere error value; determine the maximum value of the fan pulse; according to the fan pulse control value and the The fan pulse maximum value is used to calculate the fan pulse error.
  • the temperature threshold of the tuyere is mainly determined by the charging module and electrical components inside the charging pile.
  • the setting of the temperature threshold of the tuyere needs to ensure the overall reliability of the charging pile during operation, and it cannot exist inside the charging pile.
  • the device has experienced an overtemperature condition.
  • the temperature threshold of the tuyere can be set according to needs, and it is generally obtained through testing of experimental data, and it is 70° C. in this embodiment.
  • the actual temperature of the tuyere at the current moment is detected, the difference between the temperature threshold of the tuyere and the actual temperature of the tuyere is calculated, the error value of the temperature of the tuyere is obtained, and then the pulse control value of the fan is calculated according to the temperature error value of the tuyere; Finally, the difference between the fan pulse control value and the fan pulse maximum value is calculated to obtain the fan pulse error.
  • the calculating the fan pulse control value according to the tuyere error value includes: performing proportional adjustment and integral adjustment on the tuyere temperature error value to calculate the fan pulse control value, the The fan pulse control value is used to indicate the value of the pulse signal output to the fan of the charging gun at the current moment.
  • the determining the charging gun current adjustment amount according to the fan pulse error includes: when the fan pulse error is less than or equal to 0, then forcibly setting the charging gun current adjustment amount to 0; When the fan pulse error is greater than 0, reduce the first setting parameter.
  • the fan pulse error and the first current adjustment amount have a nonlinear relationship, there is no fixed formula, and it is generally obtained through experiments.
  • the fan pulse error when the fan pulse error is less than 0, it means that the fan PWM value has not reached the maximum value.
  • the output capacity of the fan is sufficient to meet the current heat dissipation demand.
  • the first current adjustment value is forced to be 0; when the fan pulse error is greater than 0, it means that the fan pulse value exceeds the maximum value, and the output capacity of the fan is insufficient to meet the current heat dissipation.
  • demand it is necessary to reduce the first setting parameter, and then reduce the first setting parameter to indirectly reduce the power of the charging pile, so that the operating capacity of the fan and the power of the charging pile are forcibly matched.
  • the calculating the maximum current of the charging gun includes:
  • the muzzle temperature threshold being the maximum temperature of the muzzle of the charging gun
  • Proportional adjustment and integral adjustment are performed on the temperature error value to obtain the maximum current of the charging gun.
  • the muzzle temperature threshold can be set differently according to the materials and specifications of different charging gun manufacturers. In this embodiment, it is 90°C. When replacing charging guns with other materials and specifications, the temperature threshold can be reset The muzzle temperature threshold is set.
  • the muzzle temperature threshold is compared with the actual muzzle temperature value to obtain a difference between the two, and the temperature error value is obtained.
  • the embodiment of the present application fully considers the operating capacity of the charging gun fan and the temperature of the fan outlet, and collects the temperature of the charging gun head in real time to ensure that the charging gun works within a reliable temperature range, ensuring the safety, reliability and reliability of charging.
  • the service life of the internal components of the charging pile is based on the charging current as the main process, taking into account the dynamic adjustment function of the temperature of the fan and the temperature of the charging gun head, and increasing the output current of the charging pile as much as possible without changing the hardware of the charging pile itself.
  • This solution is simple and easy to use. It can be implemented regardless of the existing charging piles or the new charging piles deployed in the future, realizing the flexible adjustment of the charging gun; at the same time, different maximum output currents can be set according to the power supply requirements of different electric vehicles.
  • the processor includes corresponding hardware structures and/or software modules for performing various functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.
  • the embodiments of the present application may divide the processor into functional units according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic, and is only a logical function division, and there may be another division manner in actual implementation.
  • the embodiment of the present application also provides a charging pile current control device 40, which is applied to a charging pile, and is characterized in that the device includes:
  • the obtaining unit 410 is used to obtain the first setting parameter of the charging gun, the first setting parameter is the initial setting value of the output current of the charging gun, and is used to obtain the actual current of the charging gun, so The actual current mentioned above is the output current of the charging gun at the current moment;
  • the calculation unit 420 is configured to determine a first current adjustment amount of the charging gun, and the first current adjustment amount is used to instruct the charging pile to set the first setting when the charging gun meets the fan temperature control condition.
  • the adjustment amount of the parameter, the fan temperature control condition is used to represent that the fan temperature of the charging gun fan is kept within the first preset range; calculate according to the first setting parameter and the first current adjustment amount, and obtain the second Set parameters; and be used to calculate the maximum current of the charging gun; and be used to perform proportional adjustment and integral adjustment according to the first reference current and the actual current, and calculate the output current setting parameters of the charging gun;
  • the comparison unit 430 is configured to determine the second setting parameter and the first reference current in the maximum current, wherein the first reference current is the output current of the charging pile when the temperature control condition of the charging gun is satisfied, and the The second setting parameter is used to indicate the output current setting value of the charging pile when the fan temperature control condition is met, the first reference current is the current with a smaller value among the second setting parameter and the maximum current, The temperature control condition of the charging gun is used to indicate that the muzzle temperature of the charging gun is kept within the second preset range;
  • the control unit 440 is configured to control the charging gun to output a corresponding output current according to the output current setting parameters.
  • the calculation unit 420 is specifically configured to: calculate the fan pulse error; determine the first current adjustment amount according to the fan pulse error A current adjustment value.
  • the calculation unit 420 is specifically configured to: acquire the temperature threshold of the tuyere, and the threshold of the temperature of the tuyere is the maximum value of the temperature of the fan of the charging gun; acquire the temperature of the fan of the charging gun The actual temperature value of the tuyere; calculate the outlet temperature error value according to the given value of the tuyere temperature and the actual temperature value of the tuyere temperature; calculate the fan pulse control value according to the tuyere error value; determine the maximum value of the fan pulse; The fan pulse control value and the fan pulse maximum value calculate the fan pulse error.
  • the calculation unit 420 is specifically configured to: perform proportional adjustment and integral adjustment on the tuyere temperature error value, and calculate The fan pulse control value is used to indicate the value of the pulse signal output to the charging gun fan at the current moment.
  • the calculation unit 420 includes a judging subunit, and the judging subunit is used for: when the fan pulse error is less than or equal to When the value is 0, the adjustment value of the electric gun current is forcibly set to 0; when the fan pulse error is greater than 0, the first setting parameter is reduced.
  • the first setting parameter is the input current rating of the vehicle battery chip, which is obtained from the vehicle charging chip when the charging gun is connected to the charging interface of the vehicle.
  • the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, so as to realize the above-mentioned embodiments Steps in the method described.
  • the present invention also provides a kind of electronic equipment 5, as shown in Figure 5, it comprises at least one processor (processor) 51; Display screen 52; And storer (memory) 53, can also comprise communication interface (Communications Interface) 54 and bus 55.
  • processor processor
  • the display screen 52 is configured to display the preset user guidance interface in the initial setting mode.
  • Communication interface 54 may transmit information.
  • the processor 51 can invoke logic instructions in the memory 53 to execute the methods in the above-mentioned embodiments.
  • the electronic device 5 may be the above-mentioned charging pile or other electronic devices, and no unique limitation is made here.
  • logic instructions in the memory 53 may be implemented in the form of software function units and may be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 53 can be configured to store software programs and computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 51 performs functional applications and data processing by running software programs, instructions or modules stored in the memory 53 , that is, implements the methods in the above-mentioned embodiments.
  • the memory 53 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the electronic device 5 and the like.
  • the memory 53 may include a high-speed random access memory, and may also include a non-volatile memory.
  • various media that can store program codes such as U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc., can also be temporary state storage medium.

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  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本申请公开了一种充电桩电流控制方法及相关装置，应用于充电桩中的处理器，充电桩包括处理器和充电枪，处理器与充电枪连接。所述方法包括：通过充分考虑充电枪风机运行能力及风机口温度，并实时采集充电枪头温度，确保充电枪工作在可靠的温度范围内，确保充电的安全性、可靠性和充电桩内部器件的使用寿命，采取了以充电需求电流为主流程，兼顾风机温度、充电枪头温度的动态调节功能，尽可能的提升充电桩的输出电流，根据温度状况输出不同的输出电流，达到灵活调节输出电流的目的。

Description

一种充电桩电流控制方法及相关装置
本申请要求于2021年11月24日提交中国专利局、申请号为202111401752.5、申请名称为“一种充电桩电流控制方法及相关装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
申请涉及充电桩技术领域，具体涉及一种充电桩电流控制方法及相关装置。.
背景技术
随着电动汽车的不断发展，充电桩的应用越来越广泛，随着充电桩功率的提升，充电桩内部因损耗而带来的温度上升问题，给充电桩的安全性、可靠性带来了严峻的挑战，温度成为了限制充电桩功率的提升的首要障碍。充电枪是充电桩的关键部件，其允许的充电电流主要受限于其散热条件和工作的环境温度，在不同的环境条件下，充电枪的输出电流可以达到不同值。
充电桩的传统控制方法直接将充电枪电流给定值简单按照步进的方式，转变为充电枪对应的下发电流，根据充电枪输出电流的最大值进行限值即可。此种控制方法虽然可以满足充电桩运行的基本功能要求，但是，此种控制方法导致充电枪输出电流完全在一个限制的范围内工作，即使电动汽车的需求电流超过充电枪输出电流最大值，也不再进行调节，充电方式不灵活。
发明内容
鉴于上述现有技术的不足之处，本申请的目的在于提供一种充电桩电流控制方法及相关装置，旨在提高充电桩充电的灵活性。
为了达到上述目的，本申请采取了以下技术方案：
第一方面，本申请实施例提供一种充电桩电流控制方法，应用于充电桩中的处理器，所述充电桩包括处理器和充电枪，所述处理器与所述充电枪连接，所述方法包括：
获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值；
确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；
根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；
计算出所述充电枪的最大电流；
确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二设置参数和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第 二预设范围内；
获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
第二方面，本申请实施例提供一种充电桩电流控制装置，应用于充电桩，所述装置包括：
获取单元，用于获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值，以及用于获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
计算单元，用于确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；并用于计算出所述充电枪的最大电流；以及用于根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
比较单元，用于确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二设置参数和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第二预设范围内；
控制单元，用于根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
第三方面，本申请实施例提供了一种电子设备，包括处理器、存储器，所述存储器用于存储一个或多个程序，并且被配置由所述处理器执行，所述程序包括用于执行如第一方面所述的方法中的步骤的指令。
第四方面，本申请实施例提供了一种计算机可读存储介质，存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如第一方面所述的方法中的步骤的指令。
实施本申请实施例，具备如下有益效果：
可以看出，本申请实施例中所描述的充电桩电流控制方法及相关装置，应用于充电桩中的处理器，所述充电桩包括处理器和充电枪，所述处理器与所述充电枪连接，所述方法包括：获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值；确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；根据所述第一设置参数和所述第一电流调节量进行计算，得到输出电流设置参数；根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。本申请实施例根据温度对输出电流进行相应的调整，以根据不同的温度状况输出不同的输出电流，达到灵活调节输出电流的目的。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一 些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种充电桩的结构示意图；
图2是本申请实施例提供的一种充电桩电流控制方法的流程示意图；
图3是本申请实施例提供的充电枪枪口温度变化示意图；
图4是本申请实施例提供的一种充电桩电流控制装置的结构示意图；
图5是本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其他步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请中的“至少一个”指的是一个或多个，多个指的是两个或两个以上。本申请中和/或，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A、B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一(项)个”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a、b或c中的至少一项(个)，可以表示：a，b，c，a和b，a和c，b和c，或a、b和c，其中a、b、c中的每一个本身可以是元素，也可以是包含一个或多个元素的集合。
需要指出的是，本申请实施例中涉及的等于可以与大于连用，适用于大于时所采用的技术方案，也可以与小于连用，适用于与小于时所采用的技术方案，需要说明的是，当等于与大于连用时，不与小于连用；当等于与小于连用时，不与大于连用。本申请实施例中“的(of)”，“相应的(corresponding，relevant)”和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。
首先，对本申请实施例中涉及的部分名词进行解释，以便于本领域技术人员理解。
1、PI调节器是一种线性控制器，它根据给定值与实际输出值构成控制偏差，将偏差的比例和积分通过线性组合构成控制量，对被控对象进行控制。PI调节器包括比例调节和积分调节。比例调节作用：按比例反应系统的偏差，系统一旦出现了偏差，比例调节立即产生调节作用用以减少偏差。比例作用大，可以加快调节，减少误差，但是过大的比例，使系统的稳定性下降，甚至造成系统的不稳定。积分调节作用：使系统消除稳态误差,提高无误差度。 因为有误差，积分调节就进行，直至无差，积分调节停止，积分调节输出一常值。积分作用的强弱取决于积分时间常数Ti，Ti越小，积分作用就越强。反之Ti大则积分作用弱，加入积分调节可使系统稳定性下降,动态响应变慢。积分作用常与另两种调节规律结合，组成PI调节器或PID调节器。
目前，随着电动汽车的不断发展，充电桩的应用越来越广泛，随着充电桩功率的提升，充电桩内部因损耗而带来的温度上升问题，给充电桩的安全性、可靠性带来了严峻的挑战，温度成为了限制充电桩功率的提升的首要障碍。充电枪是充电桩的关键部件，其允许的充电电流主要受限于其散热条件和工作的环境温度，在不同的环境条件下，充电枪的输出电流可以达到不同值。
充电桩的传统控制方法直接将充电枪电流给定值简单按照步进的方式，转变为充电枪对应的下发电流，根据充电枪输出电流的最大值进行限值即可。此种控制方法虽然可以满足充电桩运行的基本功能要求，但是，此种控制方法导致充电枪输出电流完全在一个限制的范围内工作，即使电动汽车的需求电流超过充电枪输出电流最大值，也不再进行调节，充电方式不灵活。
针对上述问题，本申请提供一种充电桩电流控制方法及相关装置，下面进行详细说明。
如图1所示，图1为本申请提供的一种充电桩10的结构示意图，所述充电桩10包括处理器110和充电枪120，所述处理器110与所述充电枪120连接，所述充电枪120用于与电动汽车的充电接口连接，进而为所述电动汽车充电，所述充电接口连接所述电动汽车的车辆电池芯片，由所述车辆电池芯片进行电源管理，对所述电动汽车的车辆电池进行充电。其中，所述处理器110可以是MCU、CPU、FPGA等，在此不做唯一性限定。
下面以具体的实施例对本申请所提供的信息查询方法进行说明。
如图2所示，本申请提供了一种充电桩电流控制方法，应用于充电桩中的处理器，所述充电桩包括处理器和充电枪，所述处理器与所述充电枪连接，所述方法包括：
步骤201、获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值；
步骤202、确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；
步骤203、根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；
步骤204、计算出所述充电枪的最大电流；
步骤205、确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二电流和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第二预设范围内；
步骤206、获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
步骤207、根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
步骤208、根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
示例的，所述充电枪风机用于为充电枪枪口散热，在所述充电枪风机工作的过程中也会产生热量，因此，需要对所述充电枪风机进行温度控制，以确保风机温度保持在所述第一预 设范围内。
示例的，所述第一设置参数为车辆电池芯片的输入电流额定值，当所述充电枪与电动汽车的充电接口连接时，从所述车辆充电芯片中获取。所述充电枪的输出电流的最大值不能超过所述第一设置参数。
示例的，充电枪枪口在输出电流的过程中，会积蓄热量，不同的输出电流热量达到最高温度的时间不同，在充电过程中，需要实时根据所述枪口温度调节输出电流，以确保枪口温度保持在第二预设范围内。如图3所示，以最高温度90℃为例，在输出电流为350A时，大约29min达到90℃；在输出电流为400A时，大约16min达到90℃；在输出电流为450A时，大约10min达到90℃；在输出电流为500A时，大约7min达到90℃。
可以看出，本实施例中，通过充分考虑充电枪风机运行能力及风机口温度，并实时采集充电枪头温度，确保充电枪工作在可靠的温度范围内，确保充电的安全性、可靠性和充电桩内部器件的使用寿命，采取了以充电需求电流为主流程，兼顾风机温度、充电枪头温度的动态调节功能，尽可能的提升充电桩的输出电流；在不改变充电桩自身硬件的前提下，利用充电桩本身具备的信息，实现更优的智能化控制策略，提升了充电桩的输出能力，更好的符合了当前社会大功率充电的需求，此方案具有简单、易用的特点，无论对于现存充电桩还是未来部署的新型充电桩，都可以实施，实现了对充电枪的灵活调节；同时，可以根据不同的电动汽车的供电需求，设置不同的输出电流最大值。
在一个可能的实施例中，所述确定出所述充电枪的第一电流调节量，包括：计算风机脉冲误差；根据所述风机脉冲误差确定出所述第一电流调节量。
示例的，所述风机脉冲误差为风机脉冲信号的偏移量，其根据充电枪风机的风口温度进行计算得到。
可以看出，本实施例中，实现了根据充电枪风机的风口温度计算出针对所述第一设置参数的第一电流调整量。
在一个可能的实施例中，所述计算风机脉冲误差，包括：获取风口温度阈值，所述风口温度阈值为充电枪风机的风口温度最大值；获取充电枪风机的风口实际温度值；根据所述风口温度给定值和所述风口温度实际温度值计算出风口温度误差值；根据所述风口误差值计算出风机脉冲控制值；确定出风机脉冲最大值；根据所述风机脉冲控制值和所述风机脉冲最大值计算出风机脉冲误差。
示例的，所述风口温度阈值主要由充电桩内部的充电模块、电气零部件决定，所述风口温度阈值的设定需要确保所述充电桩在运行过程中整体的可靠性，不能存在充电桩内部器件出现过温的情况。所述风口温度阈值可根据需要进行设置，一般经过试验数据进行测试得出，本实施例中为70℃。
具体实现中，检测当前时刻的风口实际温度，计算所述风口温度阈值与所述风口实际温度之差，得到所述风口温度误差值，然后根据所述风口温度误差值计算出风机脉冲控制值；最后计算所述风机脉冲控制值与所述风机脉冲最大值的差值，得出所述风机脉冲误差。
可以看出，本实施例中，实现了风机脉冲误差的计算。
在一个可能的实施例中，所述根据所述风口误差值计算出风机脉冲控制值，包括：将所述风口温度误差值进行比例调节和积分调节，计算出所述风机脉冲控制值，所述风机脉冲控制值用于指示当前时刻对所述充电枪风机输出的脉冲信号值。
可以看出，本实施例中，实现了对充电枪风机当前时刻的脉冲信号的确定。
在一个可能的实施例中，所述根据所述风机脉冲误差确定出充电枪电流调节量，包括： 当风机脉冲误差小于等于0时，则将所述电枪电流调节量强制设置为0；当风机脉冲误差大于0时，则降低所述第一设置参数。
具体实现中，风机脉冲误差与第一电流调节量为非线性关系，没有固定的公式，一般通过试验的方式得出，首先，当风机脉冲误差小于0时，说明风机PWM值未达到最大值，风机的输出能力足够供给当前的散热需求，此时，第一电流调节量强制为0；当风机脉冲误差大于0时，说明风机脉冲值超过最大值，风机的输出能力不足，无法满足当前的散热需求，需要降低所述第一设置参数，进而降低所述第一设置参数，间接达到降低充电桩功率，使风机运行能力与充电桩功率进行强制匹配。
可以看出，本实施例中，实现了基于风机的工作状况来调控充电枪输出电流的目的。
在一个可能的实施例中，所述计算出所述充电枪的最大电流，包括：
获取枪口温度阈值，所述枪口温度阈值为充电枪的枪口的温度最大值；
获取充电枪的枪口实际温度值，根据所述枪口实际温度值和枪口温度阈值计算得到温度误差值；
将所述温度误差值进行比例调节和积分调节，得到充电枪的最大电流。
示例的，所述枪口温度阈值可根据不同的充电枪生产厂家的材质和规格进行不同的设置，本实施例中为90℃，在更换其他材质和规格的充电枪时，可以重新对所述枪口温度阈值进行设置。
具体实现中，将所述枪口温度阈值与所述枪口实际温度值进行比较，得到两者之差，得到出所述温度误差值。
可以看出，本实施例中，实现了对所述充电枪电流最大值的计算。
综上所述，本申请实施例通过充分考虑充电枪风机运行能力及风机口温度，并实时采集充电枪头温度，确保充电枪工作在可靠的温度范围内，确保充电的安全性、可靠性和充电桩内部器件的使用寿命，采取了以充电需求电流为主流程，兼顾风机温度、充电枪头温度的动态调节功能，尽可能的提升充电桩的输出电流，在不改变充电桩自身硬件的前提下，利用充电桩本身具备的信息，实现更优的智能化控制策略，提升了充电桩的输出能力，更好的符合了当前社会大功率充电的需求，此方案具有简单、易用的特点，无论对于现存充电桩还是未来部署的新型充电桩，都可以实施，实现了对充电枪的灵活调节；同时，可以根据不同的电动汽车的供电需求，设置不同的输出电流最大值。
上述主要从方法侧执行过程的角度对本申请实施例的方案进行了介绍。可以理解的是，处理器为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所提供的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对处理器进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
请参阅图4，本申请实施例还提供一种充电桩电流控制装置40，应用于充电桩，其特征 在于，所述装置包括：
获取单元410，用于获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值，以及用于获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
计算单元420，用于确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；并用于计算出所述充电枪的最大电流；以及用于根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
比较单元430，用于确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二设置参数和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第二预设范围内；
控制单元440，用于根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
在一个可能的实施例中，所述确定出所述充电枪的第一电流调节量的方面，所述计算单元420具体用于：计算风机脉冲误差；根据所述风机脉冲误差确定出所述第一电流调节量。
在一个可能的实施例中，所述计算风机脉冲误差的方面，所述计算单元420具体用于：获取风口温度阈值，所述风口温度阈值为充电枪风机的风口温度最大值；获取充电枪风机的风口实际温度值；根据所述风口温度给定值和所述风口温度实际温度值计算出风口温度误差值；根据所述风口误差值计算出风机脉冲控制值；确定出风机脉冲最大值；根据所述风机脉冲控制值和所述风机脉冲最大值计算出风机脉冲误差。
在一个可能的实施例中，所述根据所述风口误差值计算出风机脉冲控制值的方面，所述计算单元420具体用于：将所述风口温度误差值进行比例调节和积分调节，计算出所述风机脉冲控制值，所述风机脉冲控制值用于指示当前时刻对所述充电枪风机输出的脉冲信号值。
在一个可能的实施例中，所述根据所述风机脉冲误差确定出充电枪电流调节量的方面，所述计算单元420包括判断子单元，所述判断子单元用于：当风机脉冲误差小于等于0时，则将所述电枪电流调节量强制设置为0；当风机脉冲误差大于0时，则降低所述第一设置参数。
在一个可能的实施例中，所述第一设置参数为车辆电池芯片的输入电流额定值，当所述充电枪与车辆的充电接口连接时，从所述车辆充电芯片中获取。本发明还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有一个或者多个程序，所述一个或者多个程序可被一个或者多个处理器执行，以实现上述实施例所述的方法中的步骤。
本发明还提供了一种电子设备5，如图5所示，其包括至少一个处理器(processor)51；显示屏52；以及存储器(memory)53，还可以包括通信接口(Communications Interface)54和总线55。其中，处理器51、显示屏52、存储器53和通信接口54可以通过总线55完成相互间的通信。显示屏52设置为显示初始设置模式中预设的用户引导界面。通信接口54可以传输信息。处理器51可以调用存储器53中的逻辑指令，以执行上述实施例中的方法。
可选的，所述电子设备5可以是上文所述的充电桩也可以是其他电子设备，在此不做唯一性限定。
此外，上述的存储器53中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器53作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令或模块。处理器51通过运行存储在存储器53中的软件程序、指令或模块，从而执行功能应用以及数据处理，即实现上述实施例中的方法。
存储器53可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据电子设备5的使用所创建的数据等。此外，存储器53可以包括高速随机存取存储器，还可以包括非易失性存储器。例如，U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
此外，上述存储介质以及移动终端中的多条指令处理器加载并执行的具体过程在上述方法中已经详细说明，在这里就不再一一陈述。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (10)

  1. 一种充电桩电流控制方法，应用于充电桩中的处理器，所述充电桩包括处理器和充电枪，所述处理器与所述充电枪连接，其特征在于，所述方法包括：
    获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值；
    确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；
    根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；
    计算出所述充电枪的最大电流；
    确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二设置参数和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第二预设范围内；
    获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
    根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
    根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
  2. 根据权利要求1所述的方法，其特征在于，所述确定出所述充电枪的第一电流调节量，包括：
    计算风机脉冲误差；
    根据所述风机脉冲误差确定出所述第一电流调节量。
  3. 根据权利要求2所述的方法，其特征在于，所述计算风机脉冲误差，包括：
    获取风口温度阈值，所述风口温度阈值为充电枪风机的风口温度最大值；
    获取充电枪风机的风口实际温度值；
    根据所述风口温度给定值和所述风口温度实际温度值计算出风口温度误差值；
    根据所述风口误差值计算出风机脉冲控制值；
    确定出风机脉冲最大值；
    根据所述风机脉冲控制值和所述风机脉冲最大值计算出风机脉冲误差。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述风口误差值计算出风机脉冲控制值，包括：
    将所述风口温度误差值进行比例调节和积分调节，计算出所述风机脉冲控制值，所述风机脉冲控制值用于指示当前时刻对所述充电枪风机输出的脉冲信号值。
  5. 根据权利要求2所述的方法，其特征在于，所述根据所述风机脉冲误差确定出充电枪电流调节量，包括：
    当风机脉冲误差小于等于0时，则将所述电枪电流调节量强制设置为0；
    当风机脉冲误差大于0时，则降低所述第一设置参数。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述计算出所述充电枪的最大电流，包括：
    获取枪口温度阈值，所述枪口温度阈值为充电枪的枪口的温度最大值；
    获取充电枪的枪口实际温度值，根据所述枪口实际温度值和枪口温度阈值计算得到温度误差值；
    将所述温度误差值进行比例调节和积分调节，得到充电枪最大电流。
  7. 根据权利要求1或2所述的方法，其特征在于，所述第一设置参数为车辆电池芯片的输入电流额定值，当所述充电枪与车辆的充电接口连接时，从所述车辆充电芯片中获取。
  8. 一种充电桩电流控制装置，应用于充电桩，其特征在于，所述装置包括：
    获取单元，用于获取所述充电枪的第一设置参数，所述第一设置参数为所述充电枪的输出电流的初始设定值，以及用于获取所述充电枪的实际电流，所述实际电流为当前时刻充电枪的输出电流；
    计算单元，用于确定出所述充电枪的第一电流调节量，所述第一电流调节量用于指示所述充电桩在所述充电枪满足风机温度控制条件时对所述第一设置参数的调整量，所述风机温度控制条件用于表征充电枪风机的风机温度保持在第一预设范围内；根据所述第一设置参数和所述第一电流调节量进行计算，得到第二设置参数；并用于计算出所述充电枪的最大电流；以及用于根据第一参考电流和所述实际电流进行比例调节和积分调节，计算出所述充电枪的输出电流设置参数；
    比较单元，用于确定第二设置参数和所述最大电流中的第一参考电流，其中，所述第一参考电流为所述充电桩在满足充电枪温度控制条件时的输出电流，所述第二设置参数用于指示所述充电桩在满足风机温度控制条件时的输出电流设定值，所述第一参考电流为所述第二设置参数和所述最大电流中数值更小的电流，所述充电枪温度控制条件用于表征充电枪的枪口温度保持在第二预设范围内；
    控制单元，用于根据所述输出电流设置参数控制所述充电枪输出相应的输出电流。
  9. 一种电子设备，其特征在于，包括处理器、存储器，所述存储器用于存储一个或多个程序，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-7任一项所述的方法中的步骤的指令。
  10. 一种计算机可读存储介质，其特征在于，存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-7任一项所述的方法中的步骤的指令。
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