WO2024007215A1 - 用于电池换电的方法和装置 - Google Patents

用于电池换电的方法和装置 Download PDF

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Publication number
WO2024007215A1
WO2024007215A1 PCT/CN2022/104209 CN2022104209W WO2024007215A1 WO 2024007215 A1 WO2024007215 A1 WO 2024007215A1 CN 2022104209 W CN2022104209 W CN 2022104209W WO 2024007215 A1 WO2024007215 A1 WO 2024007215A1
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WIPO (PCT)
Prior art keywords
battery
soc
server
control system
replaced
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PCT/CN2022/104209
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English (en)
French (fr)
Inventor
陈伟峰
马海
张萼松
Original Assignee
时代电服科技有限公司
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Application filed by 时代电服科技有限公司 filed Critical 时代电服科技有限公司
Priority to CN202280062852.6A priority Critical patent/CN117957137A/zh
Priority to PCT/CN2022/104209 priority patent/WO2024007215A1/zh
Publication of WO2024007215A1 publication Critical patent/WO2024007215A1/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
    • B60L53/66—Data transfer between charging stations and vehicles

Definitions

  • the present application relates to the technical field of electric vehicles, and in particular to a method and device for battery replacement.
  • This application provides a method and device for battery replacement, which can select different battery parameters for billing in different situations according to the usage of the battery, thereby achieving accurate billing.
  • a method for battery replacement is provided, which is applied to a station control system and includes: obtaining a first electric energy of a first battery, the first battery being a battery replaced by an electrical device, and the third An electric energy is the electric energy consumed by charging the first battery from the replaced SOC to the first state of charge SOC.
  • the first SOC is the first battery when the electrical equipment is replaced with the first battery. SOC of the battery; billing is performed based on the first electrical energy.
  • the charger charges the first battery from the SOC when it is replaced to the SOC when it is replaced.
  • the power consumed is the actual power consumed by the first battery during use. Billing based on this power can ensure reasonable calculation. fee.
  • the station control system performs billing directly based on the power consumed by the charger, which can avoid inaccurate battery parameter measurements caused by battery aging and other factors, thereby improving billing accuracy.
  • the method further includes receiving the first SOC from a server.
  • the station control system accurately obtains the first electric energy according to the first SOC, and thus performs billing based on the actual power consumed by the first battery.
  • the first SOC can also be stored in the server. When the battery swap stations for replacing the first battery and replacing the first battery are different, the first SOC can still be obtained from the server, thereby achieving accurate billing.
  • the method further includes: sending the first SOC to the server when the electrical device is replaced with the first battery.
  • obtaining the first electrical energy of the first battery includes: obtaining the first electrical energy from a charger.
  • the first battery can be billed based on the electric energy actually consumed by the charger when charging the first battery, thereby avoiding inaccurate battery parameter measurement caused by battery aging and other factors, thus improving the accuracy of billing.
  • the server is a cloud server.
  • the cloud server can make the storage method of the first SOC more flexible.
  • the battery swap station where the electrical equipment is replaced with the first battery and the battery swap station where the first battery is replaced are different battery swap stations, the billing requirements can still be obtained. Related parameters, so as to conduct reasonable billing and improve billing accuracy.
  • a battery replacement billing method is provided, which is applied to a server and includes: sending a first SOC of a first battery to a station control system, where the first SOC is used to determine a third SOC of the first battery. An electrical energy, the first electrical energy being the electrical energy consumed by charging the first battery to the first state of charge SOC.
  • the method further includes: receiving the first SOC from the station control system when the electrical device is replaced with the first battery.
  • the method further includes: receiving the first SOC from the powered device when the powered device is used for the first time.
  • the server is a cloud server.
  • a station control system including: a processing module, the processing module being used to obtain the first electric energy of a first battery, the first battery being a battery replaced by an electrical device, and the first The electric energy is the electric energy consumed by the first battery when it is charged from the replaced SOC to the first state of charge SOC.
  • the first SOC is the first battery when the electrical equipment is replaced with the first battery. SOC; the processing module is used for charging according to the first electric energy.
  • the processing module is configured to receive the first SOC from a server.
  • the processing module is configured to send the first SOC to the server when the electrical device is replaced with the first battery.
  • the processing module is configured to obtain the first electrical energy from a charger.
  • the server is a cloud server.
  • a server including: a processing module configured to send a first SOC of a first battery to a station control system, where the first SOC is used to determine a first SOC of the first battery. Electric energy, the first electric energy is the electric energy consumed by charging the first battery to the first state of charge SOC.
  • the processing module is configured to receive the first SOC from the station control system when the electrical device is replaced with the first battery.
  • the processing module is configured to receive the first SOC from the powered device when the powered device is used for the first time.
  • the server is a cloud server.
  • a power swap station including the station control system described in any embodiment of the third aspect.
  • a sixth aspect provides a power exchange system, including a station control system as described in any embodiment of the third aspect; and a server as described in any embodiment of the fourth aspect.
  • a device for battery replacement including: a processor and a memory, the memory stores instructions, and when the instructions are run by the processor, the device executes the above-mentioned first step.
  • Figure 1 is a schematic diagram of a power exchange scenario according to an embodiment of the present application.
  • Figure 2 is a schematic block diagram of a method for battery replacement provided by an embodiment of the present application.
  • FIG. 3 is a schematic block diagram of another method for battery replacement provided by an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of another method for battery replacement provided by an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a device for battery replacement provided by an embodiment of the present application.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • batteries can be used as a power source to power vehicles and reduce the use of non-renewable resources.
  • charging equipment such as charging piles can be used to charge the vehicle, that is, to charge the battery in the vehicle to realize the cycle of charging and discharging the battery.
  • battery replacement services can also be provided for vehicles through battery swapping stations, that is, the batteries can be quickly removed or installed from the vehicle. The battery removed from the vehicle can be placed in the battery storage mechanism of the battery swap station for charging in preparation for battery swapping for subsequent vehicles entering the battery swap station.
  • the performance of the battery may change. For example, the state of health (SOH) of the battery may decay with the use of the battery. If the cost of a new battery is still calculated based on its SOH, it will cause inaccurate billing and cause losses to users or operators. In addition, as the battery is used, the battery's state of charge (SOC) may also lead to inaccurate measurement results due to the accumulation of errors. If billing is still based on the SOC directly measured by the battery, the same problem will occur. This results in inaccurate billing and losses to users or operators.
  • SOH state of health
  • SOC state of charge
  • embodiments of the present application provide a method for battery swapping.
  • the actual power consumed by the charger when charging the battery is recorded.
  • Billing can be based on the actual power consumed by the battery, and the accuracy of billing will not be affected by errors in the battery's SOC or SOH.
  • FIG. 1 shows a schematic diagram of an application scenario of the battery replacement method according to the embodiment of the present application.
  • the application scenario of this battery replacement method may involve a battery replacement station 11 , a vehicle 12 and a battery.
  • the battery swap station 11 may refer to a place that provides battery swap services for vehicles.
  • the power swap station 11 can be a fixed place, or the power swap station 11 can be a movable place such as a mobile battery swap vehicle, which is not limited here.
  • the vehicle 12 may be removably connected to the battery.
  • the vehicle 12 may be a car, a truck, or other vehicles that use a power battery as a power source.
  • the battery may include a battery disposed in the vehicle 12 and a battery located in the battery swap station 11 for battery swapping.
  • the battery 141 the battery used for power swapping in the battery swap station is referred to as the battery 142 .
  • the battery may be a lithium-ion battery, a lithium metal battery, a lead-acid battery, a nickel separator battery, a nickel-metal hydride battery, a lithium-sulfur battery, a lithium-air battery, a sodium-ion battery, etc., and is not limited here.
  • the battery can be a battery cell, a battery module or a battery pack, which is not limited here.
  • the battery can also power other electrical devices in the vehicle 12 .
  • the battery can also power the in-car air conditioner, car player, etc.
  • the battery swap station 11 When the vehicle 12 equipped with the battery 141 drives into the battery swap station 11 , the battery swap station 11 removes the battery 141 from the vehicle 12 through the battery swap device, takes out the battery 142 from the battery swap station 11 , and then installs the battery 142 on the vehicle 12 . Afterwards, the vehicle 12 with the battery 142 installed can drive away from the battery swap station 11 . Through this power swap technology, the vehicle can be quickly replenished with energy within a few minutes or even tens of seconds, improving the user experience.
  • a power swap cabinet 13 may be provided in the power swap station 11 .
  • the power swap cabinet 13 includes a first battery management unit 131 and a charging unit 132 .
  • the power swap cabinet 13 may also be provided with multiple charging compartments 133 , and batteries used for power swapping may be placed in the charging compartments 133 of the power swap cabinet 13 of the power swap station 11 .
  • the first battery management unit 131 may be a battery management unit disposed in the power swap cabinet 13.
  • the first battery management unit 131 may be called a central battery management unit (Central Battery Management Unit, CBMU).
  • the charging unit 132 can charge the battery in the charging compartment 133 .
  • the charging unit may include an AC/DC module, that is, an AC/DC module and other components, devices or equipment with a charging function, which is not limited here.
  • the charging unit 132 can be provided in one-to-one correspondence with the charging compartments 133, or multiple charging compartments 133 can share one charging unit 132, which is not limited here.
  • the battery may be provided with a second battery management unit 143 correspondingly.
  • the second battery management unit 143 may be called a slave battery management unit (Slave Battery Management Unit, SBMU).
  • the vehicle 12 is also provided with a third battery management unit 121 .
  • the third battery management unit 121 can be used to manage multiple batteries 141 installed on the vehicle.
  • the third battery management unit 121 can be called a main battery management unit (Main Battery Management Unit, MBMU).
  • MBMU Main Battery Management Unit
  • the SBMU can be implemented using the battery management system (Battery Management System, BMS) of the corresponding battery; the MBMU can be implemented through the control module of the battery disconnect unit (Battery Disconnect Unit, BDU), or through one of the batteries. BMS to achieve.
  • BMS Battery Management System
  • BDU Battery Disconnect Unit
  • the power swap station 11 may also be provided with a corresponding management device.
  • the management device may have a centralized structure or a distributed structure, which is not limited here.
  • the management device can be installed inside the power swap station 11 or outside the power swap station 11 .
  • the management device may also be partially installed inside the power swap station 11 and partially outside the power swap station 11 .
  • the management device may include a station control system 151 within the power swap station 11 and a cloud server 152 outside the power swap station 11 , which is not limited here.
  • the station control system 151 can also be called the battery management unit in the power swap station 11 and is used to manage and control the batteries 142 in the power swap station 11 .
  • the first battery management unit 131 can communicate and interact with other units, modules, devices, etc. through wired or wireless means.
  • the second battery management unit 143 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods.
  • the third battery management unit 121 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods.
  • the station control system 151 can communicate and interact with other units, modules, devices, etc. through wired or wireless methods.
  • Wired communication methods include, for example, a CAN communication bus.
  • Wireless communication methods include various methods such as Bluetooth communication, WiFi communication, ZigBee communication, etc., and are not limited here.
  • the first battery management unit 131 may communicate with the second battery management unit 143 to control charging of the battery 142 in the battery compartment 133.
  • the third battery management unit 121 may communicate with the second battery management unit 143 to centrally manage multiple batteries 141 on the vehicle 12 .
  • the station control system 151 can communicate with the first battery management unit 131, the second battery management unit 143, or the third battery management unit 121 to obtain the battery 141 on the vehicle 12 or the battery 142 in the charging compartment 133. related information.
  • the station control system 151 can also communicate with the cloud server 152 to obtain relevant information about the battery 141 on the vehicle 12 or the battery 142 in the charging compartment 133 .
  • the power-exchanging device can charge for the power exchange, where the power-consuming device can be, for example, the vehicle 12 in FIG. 1 .
  • This application provides a method for battery replacement, as shown in Figure 2.
  • the method 200 shown in FIG. 2 may be performed by a station control system, such as the station control system 151 in FIG. 1 .
  • method 200 can also be applied to servers, battery replacement equipment, battery management systems, and other devices that can process battery-related parameters. It should be understood that this application does not limit the device for executing method 200, that is, any device that can process relevant parameters of the battery is applicable to the embodiment of this application.
  • Method 200 may include at least some of the following.
  • the first battery is a battery replaced by the electrical equipment.
  • the first electric energy is the electric energy consumed by the first battery from being charged to the first state of charge SOC from the replaced SOC.
  • One SOC is the SOC of the first battery when the electrical equipment is replaced with the first battery.
  • S220 Perform billing based on the first electric energy.
  • the first battery is an old battery that has been used in the electrical equipment. During the power replacement process, the power replacement equipment needs to replace the first battery and then replace the electrical equipment with a new battery.
  • the replaced battery can be stored in a power swap station and charged. Specifically, the first battery can be charged by a charger in the power swap station.
  • step S310 to step S350 are the situation when the electrical equipment uses and replaces power for the first time
  • step S410 to step S440 is the situation when the electrical equipment exchanges power for the Nth time
  • N is a positive integer greater than 1.
  • the battery used by the electrical device for the first time is battery A.
  • the BMS of the electrical device measures the SOC of battery A, records it as SA1, and executes step S310 to send SA1 to the server.
  • the electrical equipment When the electrical equipment needs to be replaced, the electrical equipment replaces battery A and replaces it with battery B in the battery swap station.
  • the server can execute step S320 and send SA1 to the station control system.
  • the server may send SA1 in response to a request from the station control system.
  • the station control system obtains the SOC when battery A is replaced, recorded as SA2.
  • the station control system records the power consumed by the charger when charging battery A from SA2 to SA1, which is recorded as QA. Then the station control system can charge battery A based on QA. Perform billing.
  • the station control system can execute step S350 and send the SOC of battery B when it leaves the station, that is, SB1, to the server.
  • the server can send SB1 to the station control system, so that the station control system can use SB1 to determine the electric energy used by the charger to charge battery B, thereby billing battery B.
  • the electrical equipment When the electrical equipment undergoes battery replacement for the second time, the electrical equipment replaces battery B and replaces battery C with battery C in the battery swap station.
  • the server can execute step S410 and send SB1 to the station control system.
  • the server may send SB1 in response to a request from the station control system.
  • the station control system obtains the SOC when battery B is replaced, recorded as SB2.
  • the station control system records the electric energy consumed by the charger when charging battery B from SB2 to SB1, which is recorded as QB. Then the station control system can charge battery B based on QB. Perform billing.
  • the station control system can execute step S440 and send the SOC of the battery C when it leaves the station, that is, SC1, to the server.
  • the server can send SC1 to the station control system, so that the station control system can use SC1 to determine the electric energy used by the charger to charge battery C, thereby billing battery C.
  • the first battery is battery B
  • the first SOC is SB1
  • the first electric energy is QB.
  • the first battery can be replaced according to method 200.
  • the actual consumption of the battery is billed.
  • the user's basic charge for using the battery is determined based on the number of batteries replaced, or the number of batteries replaced, or the quantity difference between the first battery and the second battery. If multiple first batteries are replaced by the electrical equipment and only one second battery is replaced, each first battery can be billed separately, and then the user's usage of the battery can be determined based on the number of first batteries and second batteries. basic fee.
  • the charger charges the first battery from the SOC when it is replaced to the SOC when it is replaced.
  • the power consumed is the actual power consumed by the first battery during use. Billing based on this power can ensure reasonable calculation. fee.
  • the station control system performs billing directly based on the power consumed by the charger, which can avoid inaccurate battery parameter measurements caused by battery aging and other factors, thereby improving billing accuracy.
  • the method 200 further includes: receiving the first SOC from the server.
  • the station control system When the first battery leaves the station from the battery swap station and is replaced with electrical equipment, the station control system will send the first SOC to the server; when it is replaced from the electrical equipment and is about to be charged in the battery swap station, the station control system can The server then receives the first SOC as the basis for subsequent billing.
  • the station control system accurately obtains the first electric energy according to the first SOC, and thus performs billing based on the actual power consumed by the first battery.
  • the first SOC can also be stored in the server. When the battery swap stations for replacing the first battery and replacing the first battery are different, the first SOC can still be obtained from the server, thereby achieving accurate billing.
  • method 200 further includes: when the electrical device is replaced with a first battery, sending the first SOC to the server.
  • the SOC of the first battery may change when the first battery is stored in the power swap station, sending the SOC of the first battery to the server without replacing the first battery with the electrical equipment may cause the problem.
  • the SOC is different from the actual SOC when the first battery exits the station. Therefore, in the method provided by the embodiment of the present application, when the electrical device is replaced with the first battery, that is, when the first battery leaves the station, the first SOC is sent to the server.
  • step S210 may include: obtaining the first electrical energy from the charger.
  • the battery stored in the battery swap station can be charged through a charger in the battery swap station.
  • the processing module in the charger can record the power consumed by the charger when charging the first battery. That is to say, it can record that the charger charges the first battery from the replaced SOC to the first SOC.
  • the electrical energy consumed by SO is the first electrical energy.
  • the first electric energy can be sent to the station control system.
  • the processing module in the station control system can also directly record the electric energy consumed by the charger, that is, the processing module in the charger that records the first electric energy and the processing module in the station control system that obtains the first electric energy are the same process. module.
  • the first battery can be billed based on the electric energy actually consumed by the charger when charging the first battery, thereby avoiding inaccurate battery parameter measurement caused by battery aging and other factors, thus improving the accuracy of billing.
  • the server is a cloud server.
  • the cloud server can make the storage method of the first SOC more flexible.
  • the battery swap station where the electrical equipment is replaced with the first battery and the battery swap station where the first battery is replaced are different battery swap stations, the billing requirements can still be obtained. Related parameters, so as to conduct reasonable billing and improve billing accuracy.
  • This application also provides a method for battery replacement, as shown in Figure 4.
  • the method 400 shown in FIG. 4 may be executed by a server, such as the cloud server 152 in FIG. 1 .
  • method 400 can also be applied to devices capable of processing battery-related parameters, such as battery replacement equipment and battery management systems. It should be understood that this application does not limit the device for executing method 400, that is, any device that can process relevant parameters of the battery is applicable to the embodiment of this application.
  • Method 400 may include at least some of the following.
  • S410 Send the first SOC of the first battery to the station control system.
  • the first SOC is used to determine the first electric energy of the first battery.
  • the first electric energy is used to charge the first battery to the first charge.
  • method 400 further includes: receiving the first SOC from the station control system when the electrical device is replaced with the first battery.
  • method 400 further includes: receiving the first SOC from the powered device when the powered device is used for the first time.
  • the server is a cloud server.
  • This application also provides a station control system, which includes a processing module.
  • the processing module can also be a processor in the station control system.
  • the processing module is used to obtain the first electric energy of the first battery.
  • the first battery is a battery replaced by the electrical equipment.
  • the first electric energy is the electric energy consumed by the first battery from the SOC after the replacement to the first state of charge SOC.
  • the first SOC is the SOC of the first battery when the electrical equipment is replaced with the first battery; the processing module is used for billing based on the first electric energy.
  • the processing module is configured to receive the first SOC from the server.
  • the processing module is configured to send the first SOC to the server when the electrical device is replaced with the first battery.
  • the processing module is configured to obtain the first electrical energy from the charger.
  • the server is a cloud server.
  • This application also provides a server, including a processing module, which can also be a processor in a station control system.
  • the processing module is used to send the first SOC of the first battery to the station control system.
  • the first SOC is used to determine the first electric energy of the first battery.
  • the first electric energy is the electric energy consumed by the first battery when it is charged to the first state of charge SOC. .
  • the processing module is configured to receive the first SOC from the station control system when the electrical device is replaced with the first battery.
  • the processing module is configured to receive the first SOC from the powered device when the powered device is used for the first time.
  • the server is a cloud server.
  • This application also provides a power swap station, including the station control system in any of the above embodiments.
  • This application also provides a power exchange system, including the station control system in any of the above embodiments and the server in any of the above embodiments.
  • This application also provides a device 500 for battery replacement, as shown in Figure 5, including a processor 501 and a memory 502.
  • the memory 502 stores instructions. When the instructions are run by the processor 501, the device 500 executes the above steps. The method described in any embodiment.
  • This application also provides a computer-readable storage medium that stores a computer program. When the computer program is run, the method described in any of the above embodiments is executed.

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  • Engineering & Computer Science (AREA)
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  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract

本申请实施例提供了一种用于电池换电的方法和装置，通过记录充电机为电池充电时实际消耗的电能，能够以电池实际消耗的电量为基础进行计费，从而实现准确计费。该用于电池换电的方法包括：获取第一电池的第一电能，所述第一电池为用电设备换下的电池，所述第一电能为所述第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，所述第一SOC为所述用电设备换上所述第一电池时所述第一电池的SOC；根据所述第一电能进行计费。

Description

用于电池换电的方法和装置 技术领域
本申请涉及电动汽车技术领域，特别是涉及一种用于电池换电的方法和装置。
背景技术
随着电动汽车技术的快速发展，电动车辆由于其节能环保的优势成为汽车产业可持续发展的重要组成部分。目前，除了可通过充电装置对电动车辆中的电池进行充电以保证电动车辆的持续运行以外，还可通过换电站更换电动车辆中的电池，快速为能量不足的电动车辆补给能量。
然而，在更换电池后，如何对电池进行准确计费，仍然是一个需要解决的问题。
发明内容
本申请提供了一种用于电池换电的方法和装置，可以根据电池的使用情况，在不同情况下选择不同的电池参数进行计费，实现准确计费。
第一方面，提供了一种用于电池换电的方法，应用于站控系统，包括：获取第一电池的第一电能，所述第一电池为用电设备换下的电池，所述第一电能为所述第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，所述第一SOC为所述用电设备换上所述第一电池时所述第一电池的SOC；根据所述第一电能进行计费。
充电机将第一电池的电量由换下时的SOC充电至换上时的SOC，其消耗的电能即为第一电池在使用过程中实际消耗的电能，以该电 能进行计费可以保证合理计费。同时，站控系统直接根据充电机所消耗的电能进行计费，可以避免电池老化等因素导致的电池参数测量不准确，从而能够提高计费的准确性。
在一些实施例中，所述方法还包括：从服务器接收所述第一SOC。
这样可以保证站控系统根据第一SOC准确获取到第一电能，从而以第一电池实际消耗的电量来进行计费。同时，这样也可以将第一SOC存储于服务器中，当换上第一电池和换下第一电池的换电站不同时，仍然可以从服务器获取第一SOC，从而实现准确计费。
在一些实施例中，所述方法还包括：在所述用电设备换上所述第一电池的情况下，向服务器发送所述第一SOC。
这样可以保证站控系统提供的第一SOC是准确的，从而保证后续对第一电池的计费是准确的。
在一些实施例中，所述获取第一电池的第一电能，包括：从充电机获取所述第一电能。
这样可以根据充电机为第一电池充电时实际消耗的电能来对第一电池进行计费，避免电池老化等因素导致的电池参数测量不准确，从而能够提高计费的准确性。
在一些实施例中，所述服务器为云端服务器。
云端服务器可以使得第一SOC的存储方式更加灵活，在用电设备换上第一电池的换电站和换下第一电池的换电站为不同换电站的情况下，仍然能够获取到计费所需的相关参数，从而进行合理地计费，提高计费的准确性。
第二方面，提供了一种电池换电计费的方法，应用于服务器，包括：向站控系统发送第一电池的第一SOC，所述第一SOC用于确定所述 第一电池的第一电能，所述第一电能为所述第一电池被充电至第一荷电状态SOC消耗的电能。
在一些实施例中，所述方法还包括：在所述用电设备换上所述第一电池的情况下，从所述站控系统接收所述第一SOC。
在一些实施例中，所述方法还包括：在所述用电设备第一次使用情况下，从所述用电设备接收所述第一SOC。
在一些实施例中，所述服务器为云端服务器。
第三方面，提供了一种站控系统，包括：处理模块，所述处理模块用于获取第一电池的第一电能，所述第一电池为用电设备换下的电池，所述第一电能为所述第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，所述第一SOC为所述用电设备换上所述第一电池时所述第一电池的SOC；所述处理模块用于根据所述第一电能进行计费。
在一些实施例中，所述处理模块用于从服务器接收所述第一SOC。
在一些实施例中，所述处理模块用于在所述用电设备换上所述第一电池的情况下，向服务器发送所述第一SOC。
在一些实施例中，所述处理模块用于从充电机获取所述第一电能。
在一些实施例中，所述服务器为云端服务器。
第四方面，提供了一种服务器，包括：处理模块，所述处理模块用于向站控系统发送第一电池的第一SOC，所述第一SOC用于确定所述第一电池的第一电能，所述第一电能为所述第一电池被充电至第一荷电状态SOC消耗的电能。
在一些实施例中，所述处理模块用于在所述用电设备换上所述第一电池的情况下，从所述站控系统接收所述第一SOC。
在一些实施例中，所述处理模块用于在所述用电设备第一次使用情况下，从所述用电设备接收所述第一SOC。
在一些实施例中，所述服务器为云端服务器。
第五方面，提供了一种换电站，包括如上述第三方面中任一实施例所述的站控系统。
第六方面，提供了一种换电系统，包括如上述第三方面中任一实施例所述的站控系统；以及如上述第四方面中任一实施例所述的服务器。
第七方面，提供了一种用于电池换电的装置，包括：处理器和存储器，所述存储器存储有指令，所述指令被所述处理器运行时，使得所述装置执行如上述第一方面或第二方面中任一实施例所述的方法。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述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，还可以根据附图获得其他的附图。
图1是本申请实施例的一种换电场景的示意图。
图2是本申请实施例提供的一种用于电池换电的方法的示意性框图。
图3是本申请实施例提供的另一种用于电池换电的方法的示意性框图。
图4是本申请实施例提供的另一种用于电池换电的方法的示意性框图。
图5是本申请实施例提供的一种用于电池换电的装置的示意性框图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
除非另有定义，本申请所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本申请中在申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请中提及“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，本申请所描述的实施例可以与其它实施例相结合。
随着新能源技术的发展，电池的应用领域越来越广泛，如可作为动力源为车辆提供动力，减少不可再生资源的使用。在车辆中电池的电量不足以支持车辆继续行驶的情况下，可利用充电桩等充电设备对车辆进行充电，即对车辆中的电池进行充电，以实现电池的充、放电循环使用。或者，也可以通过换电站为车辆提供电池更换服务，即电池可以从车辆上快速取下或者安装。从车辆上取下的电池可以放入换电站的电池存放机构中进行充电，以备为后续进入换电站的车辆进行换电。
电池在使用了一段时间或一定循环圈数后，电池的性能可能会发生改变，例如电池的健康状态(state of health，SOH)，可能会随着电池的使用而产生衰减。如果仍然按照新电池的SOH来计算该电池的费用，则会造成计费不准确，给用户或运营商带来损失。另外，随着电池的使用，电池的荷电状态(state of charge，SOC)也有可能因为误差的积累而导致测量结果的不准确，如果仍然按照该电池直接测量得到的SOC进行计费，同样会造成计费不准确，给用户或运营商带来损失。
鉴于此，本申请实施例提供了一种用于电池换电的方法，在电池从用电设备换下，并在换电站中进行充电时，通过记录充电机为电池充电时实际消耗的电能，能够以电池实际消耗的电量为基础进行计费，而不会被电池的SOC或SOH的误差影响计费的准确性。
图1示出了本申请实施例的更换电池的方法的应用场景的一种示意图。如图1所示，该更换电池的方法的应用场景可涉及到换电站11、车辆12和电池。
换电站11可指为车辆提供换电服务的场所。例如，换电站11可 以为固定的场所，或者，换电站11可为如移动换电车辆等可移动场所，在此并不限定。
车辆12可与电池可拆卸连接。在一些示例中，车辆12可以是小汽车、货车等以动力电池为动力源的车辆。
电池可包括设置在车辆12内的电池和位于换电站11中用于换电的电池。为了便于区分，如图1所示，车辆12内待更换的电池记作电池141，换电站中用于换电的电池记作电池142。电池可以为锂离子电池、锂金属电池、铅酸电池、镍隔电池、镍氢电池、锂硫电池、锂空气电池或者钠离子电池等，在此并不限定。从规模而言，电池可为电池单体、电池模组或电池包，在此并不限定。电池除了可作为动力源为车辆12的电机供电，还可为车辆12中的其他用电器件供电，例如，电池还可为车内空调、车载播放器等供电。
当安装有电池141的车辆12驶入换电站11之后，换电站11通过换电装置将电池141从车辆12取下，并从换电站11中取出电池142，然后将电池142安装到车辆12上。之后安装有电池142的车辆12可以驶离换电站11。通过该换电技术，可以在几分钟、甚至数十秒内对车辆进行快速的能量补充，提高了用户的体验。
如图1所示，换电站11中可设置有换电柜13。换电柜13包括第一电池管理单元131和充电单元132。换电柜13还可设置有多个充电仓133，用于换电的电池可放置于换电站11的换电柜13的充电仓133中。第一电池管理单元131可为设置在换电柜13中的电池管理单元，例如，可称第一电池管理单元131为中心电池管理单元(Central Battery Management Unit，CBMU)。充电单元132可对充电仓133中的电池充电。在一些示例中，充电单元可包括交流/直流模块即AC/DC模块等具有充电功能的部件、装置或设备，在此并不限定。充电单元132可与充电仓133一一对应设置， 也可多个充电仓133共用一个充电单元132，在此并不限定。
电池可对应设置有第二电池管理单元143。例如，可称第二电池管理单元143为从电池管理单元(Slave Battery Management Unit，SBMU)。
车辆12上还设置有第三电池管理单元121。该第三电池管理单元121可用于管理车辆上安装的多个电池141，例如，可称第三电池管理单元121为主电池管理单元(Main Battery Management Unit，MBMU)。
在一些实施例中，SBMU可利用对应电池的电池管理系统(Battery Management System，BMS)来实现；MBMU可以通过电池断路单元(Battery Disconnect Unit，BDU)的控制模块来实现，也可以通过其中一个电池的BMS来实现。
换电站11还可对应设置有管理装置。该管理装置可为集中式结构，也可为分布式结构，在此并不限定。管理装置可设置在换电站11内，也可以设置在换电站11外。在管理装置为分布式结构的情况下，管理装置还可以部分设置在换电站11内，部分设置在换电站11外。例如，如图1所示，管理装置可以包括换电站11内的站控系统151和换电站11外的云端服务器152，在此并不限定。站控系统151也可以称为是换电站11中的电池管理单元，用于对换电站11中的电池142进行管理控制。
可选地，第一电池管理单元131可通过有线或无线方式与其他单元、模块、装置等进行通信交互。第二电池管理单元143可通过有线或无线方式与其他单元、模块、装置等进行通信交互。第三电池管理单元121可通过有线或无线方式与其他单元、模块、装置等进行通信交互。站控系统151可通过有线或无线方式与其他单元、模块、装置等进行通信交互。有线通信方式包括例如CAN通信总线。无线通信方式包括例如蓝牙通信、WiFi通信、ZigBee通信等各种方式，在此并不限定。
例如，第一电池管理单元131可以与第二电池管理单元143之间 进行通信，以控制对电池仓133内的电池142进行充电。再例如，第三电池管理单元121可以与第二电池管理单元143之间进行通信，以集中管理车辆12上的多个电池141。再例如，站控系统151可以与第一电池管理单元131、第二电池管理单元143或第三电池管理单元121之间进行通信，以获取车辆12上的电池141或充电仓133内的电池142的相关信息。再例如，站控系统151也可以与云端服务器152之间进行通信，以获取车辆12上的电池141或充电仓133内的电池142的相关信息。
在将旧电池从用电设备换下，将新电池为用电设备换上后，换电设备可以对该次换电进行计费，其中用电设备例如可以是图1中的车辆12。本申请提供了一种用于电池换电的方法，如图2所示。图2中示出的方法200可以由站控系统执行，例如图1中的站控系统151。可选地，方法200也可以应用于服务器、换电设备、电池管理系统等能够对电池的相关参数进行处理的装置。应理解，本申请对执行方法200的装置不做限定，即可以对电池的相关参数进行处理的装置均适用于本申请实施例。方法200可以包括以下内容中的至少部分内容。
S210：获取第一电池的第一电能，第一电池为用电设备换下的电池，第一电能为第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，第一SOC为用电设备换上第一电池时第一电池的SOC。
S220：根据第一电能进行计费。
第一电池为用电设备中已使用的旧电池，在换电过程中需要换电设备将第一电池换下，再为用电设备换上新电池。换下的电池可以储存在换电站中并进行充电，具体地，可以由换电站中的充电机为第一电池充电。
以图3为例对本申请实施例提供的用于电池换电的方法进行说明，在图3中，步骤S310至步骤S350为用电设备第一次用电和换电的情 况，步骤S410至步骤S440为用电设备第N次进行换电的情况，N为大于1的正整数。
具体地，用电设备第一次使用的电池为电池A，在用电设备启动时，用电设备的BMS测量电池A的SOC，记为SA1，并执行步骤S310，将SA1发送给服务器。在用电设备需要进行换电的情况下，用电设备在换电站中将电池A换下，并换上电池B。服务器可以执行步骤S320，将SA1发送给站控系统。可选地，服务器可以在响应于站控系统的请求的情况下，发送SA1。
站控系统获取电池A换下时的SOC，记为SA2。换电站中的充电机对电池A进行充电时，站控系统记录充电机将电池A的电量由SA2充至SA1的过程中消耗的电能，记为QA，则站控系统可以根据QA对电池A进行计费。
另外，在为用电设备换上电池B时，站控系统可以执行步骤S350，将电池B出站时的SOC，即SB1，发送给服务器。这样可以在电池B被换下时，服务器能够将SB1发送给站控系统，使得站控系统能够利用SB1确定充电机为电池B充电的电能，从而对电池B进行计费。
在用电设备第二次进行换电时，用电设备在换电站中将电池B换下，并换上电池C。服务器可以执行步骤S410，将SB1发送给站控系统。可选地，服务器可以在响应于站控系统的请求的情况下，发送SB1。
站控系统获取电池B换下时的SOC，记为SB2。换电站中的充电机对电池B进行充电时，站控系统记录充电机将电池B的电量由SB2充至SB1的过程中消耗的电能，记为QB，则站控系统可以根据QB对电池B进行计费。
另外，在为用电设备换上电池C时，站控系统可以执行步骤S440，将电池C出站时的SOC，即SC1，发送给服务器。这样可以在电池 C被换下时，服务器能够将SC1发送给站控系统，使得站控系统能够利用SC1确定充电机为电池C充电的电能，从而对电池C进行计费。
在图3所示的实施例中，可以认为在一次换电过程中，第一电池为电池B，第一SOC为SB1，第一电能为QB。
在用电设备换上电池的数量和换下电池的数量不同的情况下，例如，用电设备换下了一块第一电池并换上了多块第二电池，则可以按照方法200对第一电池实际消耗的电量进行计费，另外再根据换上电池的数量，或者，换下电池的数量，或者，第一电池和第二电池之间的数量差，来确定用户使用电池的基础费用。若用电设备换下了多块第一电池且仅换上了一块第二电池，可以分别对每一块第一电池进行计费，再根据第一电池和第二电池的数量，确定用户使用电池的基础费用。
充电机将第一电池的电量由换下时的SOC充电至换上时的SOC，其消耗的电能即为第一电池在使用过程中实际消耗的电能，以该电能进行计费可以保证合理计费。同时，站控系统直接根据充电机所消耗的电能进行计费，可以避免电池老化等因素导致的电池参数测量不准确，从而能够提高计费的准确性。
根据本申请的一些实施例，可选地，方法200还包括：从服务器接收第一SOC。
第一电池在从换电站出站并换上用电设备时，站控系统会将第一SOC发送至服务器；在从用电设备换下并即将在换电站中充电时，站控系统可以从服务器再接收第一SOC，以作为后续计费的依据。
这样可以保证站控系统根据第一SOC准确获取到第一电能，从而以第一电池实际消耗的电量来进行计费。同时，这样也可以将第一SOC存储于服务器中，当换上第一电池和换下第一电池的换电站不同时，仍然可以从服务器获取第一SOC，从而实现准确计费。
根据本申请的一些实施例，可选地，方法200还包括：在用电设备换上第一电池的情况下，向服务器发送第一SOC。
考虑到第一电池存储于换电站时第一电池的SOC可能会发生变化，在不需要将第一电池换上用电设备的情况下就向服务器发送第一电池的SOC，有可能会导致该SOC与第一电池出站时的实际SOC不同。因此，在本申请实施例提供的方法中，在用电设备换上第一电池的情况下，即第一电池出站时，向服务器发送第一SOC。
这样可以保证站控系统提供的第一SOC是准确的，从而保证后续对第一电池的计费是准确的。
根据本申请的一些实施例，可选地，步骤S210可以包括：从充电机获取第一电能。
在本申请提供的实施例中，可以通过换电站中的充电机对存储于换电站中的电池进行充电。充电机在充电过程中，充电机中的处理模块可以记录充电机在对第一电池充电时消耗的电能，也就是说，可以记录充电机将第一电池从换下后的SOC充电至第一SO消耗的电能，即第一电能。在一种可能的实施方式中，可以将该第一电能发送给站控系统。可选地，站控系统中的处理模块也可以直接对充电机消耗的电能进行记录，即充电机中记录第一电能的处理模块与站控系统中获取第一电能的处理模块为同一个处理模块。
这样可以根据充电机为第一电池充电时实际消耗的电能来对第一电池进行计费，避免电池老化等因素导致的电池参数测量不准确，从而能够提高计费的准确性。
根据本申请的一些实施例，可选地，服务器为云端服务器。
云端服务器可以使得第一SOC的存储方式更加灵活，在用电设备换上第一电池的换电站和换下第一电池的换电站为不同换电站的情况 下，仍然能够获取到计费所需的相关参数，从而进行合理地计费，提高计费的准确性。
本申请还提供了一种用于电池换电的方法，如图4所示。图4中示出的方法400可以由服务器执行，例如图1中的云端服务器152。可选地，方法400也可以应用于换电设备、电池管理系统等能够对电池的相关参数进行处理的装置。应理解，本申请对执行方法400的装置不做限定，即可以对电池的相关参数进行处理的装置均适用于本申请实施例。方法400可以包括以下内容中的至少部分内容。
S410：向站控系统发送第一电池的第一SOC，所述第一SOC用于确定所述第一电池的第一电能，所述第一电能为所述第一电池被充电至第一荷电状态SOC消耗的电能。
根据本申请的一些实施例，可选地，方法400还包括：在所述用电设备换上所述第一电池的情况下，从所述站控系统接收所述第一SOC。
根据本申请的一些实施例，可选地，方法400还包括：在所述用电设备第一次使用情况下，从所述用电设备接收所述第一SOC。
根据本申请的一些实施例，可选地，服务器为云端服务器。
本申请还提供了一种站控系统，包括处理模块，该处理模块也可以为站控系统中的处理器。处理模块用于获取第一电池的第一电能，第一电池为用电设备换下的电池，第一电能为第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，第一SOC为用电设备换上第一电池时第一电池的SOC；处理模块用于根据第一电能进行计费。
根据本申请的一些实施例，可选地，处理模块用于从服务器接收第一SOC。
根据本申请的一些实施例，可选地，处理模块用于在用电设备换上第一电池的情况下，向服务器发送第一SOC。
根据本申请的一些实施例，可选地，处理模块用于从充电机获取第一电能。
根据本申请的一些实施例，可选地，服务器为云端服务器。
本申请还提供了一种服务器，包括处理模块，该处理模块也可以为站控系统中的处理器。处理模块用于向站控系统发送第一电池的第一SOC，第一SOC用于确定第一电池的第一电能，第一电能为第一电池被充电至第一荷电状态SOC消耗的电能。
根据本申请的一些实施例，可选地，处理模块用于在用电设备换上第一电池的情况下，从站控系统接收第一SOC。
根据本申请的一些实施例，可选地，处理模块用于在用电设备第一次使用情况下，从用电设备接收第一SOC。
根据本申请的一些实施例，可选地，服务器为云端服务器。
本申请还提供了一种换电站，包括上述任一项实施例中的站控系统。
本申请还提供了一种换电系统，包括上述任一项实施例中的站控系统，以及上述任一项实施例中的服务器。
本申请还提供了一种用于电池换电的装置500，如图5所示，包括处理器501和存储器502，存储器502存储有指令，指令被处理器501运行时，使得装置500执行如上述任一实施例所述的方法。
本申请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计算机程序，所述计算机程序被运行时，执行如上述任一实施例所述的方法。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征 均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (21)

  1. 一种用于电池换电的方法，其特征在于，包括：
    获取第一电池的第一电能，所述第一电池为用电设备换下的电池，所述第一电能为所述第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，所述第一SOC为所述用电设备换上所述第一电池时所述第一电池的SOC；
    根据所述第一电能进行计费。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    从服务器接收所述第一SOC。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    在所述用电设备换上所述第一电池的情况下，向服务器发送所述第一SOC。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述获取第一电池的第一电能，包括：
    从充电机获取所述第一电能。
  5. 根据权利要求2至4中任一项所述的方法，其特征在于，所述服务器为云端服务器。
  6. 一种用于电池换电的方法，其特征在于，包括：
    向站控系统发送第一电池的第一SOC，所述第一SOC用于确定所述第一电池的第一电能，所述第一电能为所述第一电池被充电至第一荷电状态SOC消耗的电能。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    在所述用电设备换上所述第一电池的情况下，从所述站控系统接收所述第一SOC。
  8. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    在所述用电设备第一次使用情况下，从所述用电设备接收所述第一SOC。
  9. 根据权利要求6至8中任一项所述的方法，其特征在于，所述服务器为云端服务器。
  10. 一种站控系统，其特征在于，包括：
    处理模块，所述处理模块用于获取第一电池的第一电能，所述第一电池为用电设备换下的电池，所述第一电能为所述第一电池从换下后的SOC被充电至第一荷电状态SOC消耗的电能，所述第一SOC为所述用电设备换上所述第一电池时所述第一电池的SOC；
    所述处理模块用于根据所述第一电能进行计费。
  11. 根据权利要求10所述的站控系统，其特征在于，所述处理模块用于从服务器接收所述第一SOC。
  12. 根据权利要求10或11所述的站控系统，其特征在于，
    所述处理模块用于在所述用电设备换上所述第一电池的情况下，向服务器发送所述第一SOC。
  13. 根据权利要求10至12中任一项所述的站控系统，其特征在于，所述处理模块用于从充电机获取所述第一电能。
  14. 根据权利要求11至13中任一项所述的站控系统，其特征在于，所述服务器为云端服务器。
  15. 一种服务器，其特征在于，包括：
    处理模块，所述处理模块用于向站控系统发送第一电池的第一SOC，所述第一SOC用于确定所述第一电池的第一电能，所述第一电能为所述第一电池被充电至第一荷电状态SOC消耗的电能。
  16. 根据权利要求15所述的服务器，其特征在于，所述处理模块用于在所述用电设备换上所述第一电池的情况下，从所述站控系统接收所述第 一SOC。
  17. 根据权利要求15所述的服务器，其特征在于，所述处理模块用于在所述用电设备第一次使用情况下，从所述用电设备接收所述第一SOC。
  18. 根据权利要求15至17中任一项所述的服务器，其特征在于，所述服务器为云端服务器。
  19. 一种换电站，其特征在于，包括：
    如权利要求10至14中任一项所述的站控系统。
  20. 一种换电系统，其特征在于，包括：
    如权利要求10至14中任一项所述的站控系统；
    如权利要求15至18中任一项所述的服务器。
  21. 一种用于电池换电的装置，其特征在于，包括：
    处理器和存储器，所述存储器存储有指令，所述指令被所述处理器运行时，使得所述装置执行如上述权利要求1至5中任一项所述的方法，或者，执行如上述权利要求6至9中任一项所述的方法。
PCT/CN2022/104209 2022-07-06 2022-07-06 用于电池换电的方法和装置 WO2024007215A1 (zh)

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CN106780786A (zh) * 2017-01-23 2017-05-31 孔文欣 电动汽车的电池电量计费的控制方法及系统
CN111762053A (zh) * 2020-03-18 2020-10-13 杭州协能科技股份有限公司 一种电池换电计费的控制方法及控制系统
CN112185007A (zh) * 2020-09-07 2021-01-05 杭州协能科技股份有限公司 一种电池计费的控制方法及控制系统

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CN1734827A (zh) * 2005-07-18 2006-02-15 刘浏沐 电动车电池网络式换用的方法及设备
CN103269107A (zh) * 2013-05-31 2013-08-28 国家电网公司 一种经济效益优化的电动汽车充换电站充换电控制方法
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