Battery abnormality handling method for battery compartment based on new energy vehicle battery replacement station

Abstract

The present invention discloses a method for handling battery abnormalities in a battery compartment based on a new energy vehicle battery swap station, comprising the following steps: step 1, a battery swap station platform establishes a communication connection with a station control system, and the station control system establishes a communication connection with a charging module, a PLC and a water cooling system; step 2, a battery failure occurs in the battery compartment, and the failure is reported to the station control system through the charging module; step 3, the station control system receives the failure information reported by the charging module, and performs different processing and control according to the hierarchical definition of the failure; in step 3, the failure information is divided into six levels, and the failure levels include: level one failure, level two failure, level three failure, level four failure, level five failure and level six failure; step 4, when the failure needs to be handled by personnel, it is reported to the battery swap station platform, and relevant personnel are notified to perform maintenance and processing, so as to realize the real-time control of the batteries in the battery swap station and the hierarchical processing of battery failures, so as to ensure the safety of personnel life and property.

Description

Technical Field

[0001] The present invention relates to the field of safety technology of battery swap stations, and in particular to a method for handling battery abnormalities in a battery compartment of a new energy vehicle battery swap station. Background Art

[0002] As a device that integrates light storage, charging, swapping and discharging, a new energy vehicle battery swap station stores multiple battery devices. The batteries need to be charged and discharged, and different degrees of fault alarms may occur during this process. If the battery fails, it may cause property losses and personal injuries to the equipment in the station if it is not handled in time. With the large-scale laying and operation of new energy battery swap stations, the risks caused by battery failure will greatly increase, but the current battery swap stations cannot solve this problem well. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a method for handling battery abnormalities in a battery compartment of a new energy vehicle battery swap station. This method is used to achieve real-time control of batteries in the battery swap station and graded processing of battery failures, thereby achieving efficient utilization of resources and ensuring the life safety and property safety of personnel in the battery swap station.

[0004] The technical solution of the present invention is: a method for handling battery abnormalities in a battery compartment of a new energy vehicle battery replacement station, comprising the following steps:

[0005] Step 1: The battery swap station platform establishes a communication connection with the station control system, and the station control system establishes a communication connection with the charging module, PLC and water cooling system;

[0006] Step 2: If a battery failure occurs in the battery compartment, the fault is reported to the station control system through the charging module;

[0007] Step 3: The station control system receives the fault information reported by the charging module and performs different processing and control according to the fault classification definition;

[0008] In step 3, the fault information is divided into six levels, including level 1 fault, level 2 fault, level 3 fault, level 4 fault, level 5 fault and level 6 fault;

[0009] Step 4: If the fault requires human intervention, report it to the battery swap station platform and notify relevant personnel to carry out maintenance.

[0010] Furthermore, in step 1, the battery swap station platform and the station control system use MQTT communication method, the station control system and the charging module use TCP communication for data exchange, the station control system and the PLC use tag communication, and the station control system and the water cooling system use MQTT communication method to achieve real-time data interaction and fault handling control.

[0011] Further, the first-level fault includes: battery thermal runaway;

[0012] The secondary faults include: excessive discharge current, excessive battery temperature and excessive single cell voltage;

[0013] The three-level faults include: abnormal battery in-place in the warehouse, slight alarm of battery overtemperature, and general alarm of battery overtemperature;

[0014] The four-level faults include: abnormal module discharge and input overvoltage alarm;

[0015] The five-level faults include: charging module connection failure;

[0016] The six-level faults include: abnormal battery access status.

[0017] Furthermore, when the station control system receives fault information indicating that the fault is a level one fault, it triggers the firefighting of the entire station through the PLC, issues firefighting processing operations, pops up an alarm, plays a voice announcement prompt, and reports to the battery swap station platform, calling relevant personnel to handle the matter.

[0018] Furthermore, the pop-up warning is a thermal runaway warning of the battery in the "X" compartment.

[0019] Furthermore, the fire fighting operations include stopping the battery swapping operation in the battery swapping station, stopping all charging and discharging operations, shutting down the water cooling of the problematic battery, spraying HFC-227ea, moving the problematic battery to the fire water tank, turning on the explosion-proof fan, triggering the sound and light alarm, and raising the front and rear rolling doors.

[0020] Furthermore, the fire fighting process and reporting to the battery swap station platform are performed synchronously.

[0021] Furthermore, when the fault information received by the station control system is a level 2 fault, the battery replacement operation is stopped, the charging and discharging operations of the batteries in the compartment are suspended, and the battery replacement station platform is reported to call relevant personnel.

[0022] Furthermore, when the fault information received by the station control system is a level three or level four fault, the current battery replacement order can continue to be executed to complete the battery replacement operation; the charging and discharging operations of the problematic batteries in the warehouse are suspended, and the battery replacement station platform is reported to call relevant personnel.

[0023] Furthermore, when the fault information received by the station control system is a level 5 or level 6 fault, the battery replacement operation is performed normally, and the level 5 or level 6 fault is a resettable fault, and there is no need to call relevant personnel.

[0024] The beneficial technical effects of the present invention are:

[0025] This design aims to utilize the communication collaboration between the station control system and the battery swap station platform, charging system, PLC, water cooling system and other equipment to achieve real-time control of batteries in the battery swap station and hierarchical processing of battery failures, thereby achieving efficient use of resources and ensuring the safety of life and property of people in the battery swap station.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A diagram showing the relationship between the battery swap station platform, the station control system, the charging module and the water cooling system of the present invention;

[0028] Figure 2 It is a schematic diagram of the primary fault processing of the present invention;

[0029] Figure 3 It is a schematic diagram of the second-level, third-level, fourth-level, fifth-level and sixth-level fault processing of the present invention. DETAILED DESCRIPTION

[0030] In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships described in the embodiments and shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] like Figure 1-Figure 3 As shown, the present invention specifically relates to a method for handling battery abnormalities in a battery compartment based on a new energy vehicle battery replacement station, comprising the following steps:

[0034] Step 1: The battery swap station platform establishes a communication connection with the station control system, and the station control system establishes a communication connection with the charging module, PLC and water cooling system;

[0035] Furthermore, in step 1, the battery swap station platform and the station control system use MQTT communication method, the station control system and the charging module use TCP communication for data exchange, the station control system and the PLC use tag communication, and the station control system and the water cooling system use MQTT communication method to achieve real-time data interaction and fault handling control.

[0036] Step 2: If a battery failure occurs in the battery compartment, the fault is reported to the station control system through the charging module;

[0037] Step 3: The station control system receives the fault information reported by the charging module and performs different processing and control according to the fault classification definition;

[0038] In step 3, the fault information is divided into six levels, including level 1 fault, level 2 fault, level 3 fault, level 4 fault, level 5 fault and level 6 fault;

[0039] Further, the first-level fault includes: battery thermal runaway;

[0040] The secondary faults include: excessive discharge current, excessive battery temperature and excessive single cell voltage;

[0041] The three-level faults include: abnormal battery in-place in the warehouse, slight alarm of battery overtemperature, and general alarm of battery overtemperature;

[0042] The four-level faults include: abnormal module discharge and input overvoltage alarm;

[0043] The five-level faults include: charging module connection failure;

[0044] The six-level faults include: abnormal battery access status.

[0045] The fault level is divided into six levels, and the battery swap station can be initially divided into four states; under level one fault, the fire protection of the entire station is triggered and it is suspended; under level two fault, the operating equipment and water cooling equipment are stopped, and the current charging and discharging are suspended, waiting for maintenance; under level three and level four faults, some equipment cannot work normally and requires external calls for maintenance, but battery swapping can continue; under level five and level six faults, the battery swap station operates normally and can be handled by clicking on the module to reset or reconnect, without the need for external calls for maintenance.

[0046] Furthermore, when the station control system receives fault information indicating that the fault is a level one fault, it triggers the firefighting of the entire station through the PLC, issues firefighting processing operations, pops up an alarm, plays a voice announcement prompt, and reports to the battery swap station platform, calling relevant personnel to handle the matter.

[0047] Furthermore, the pop-up warning is a thermal runaway warning of the battery in the "X" compartment.

[0048] Furthermore, the fire fighting operations include stopping the battery swapping operation in the battery swapping station, stopping all charging and discharging operations, shutting down the water cooling of the problematic battery, spraying HFC-227ea, moving the problematic battery to the fire water tank, turning on the explosion-proof fan, triggering the sound and light alarm, and raising the front and rear rolling doors.

[0049] Furthermore, the fire fighting process and reporting to the battery swap station platform are performed synchronously.

[0050] Furthermore, when the fault information received by the station control system is a level 2 fault, the battery replacement operation is stopped, the charging and discharging operations of the batteries in the compartment are suspended, and the battery replacement station platform is reported to call relevant personnel.

[0051] Furthermore, when the fault information received by the station control system is a level three or level four fault, the current battery replacement order can continue to be executed to complete the battery replacement operation; the charging and discharging operations of the problematic batteries in the warehouse are suspended, and the battery replacement station platform is reported to call relevant personnel.

[0052] Furthermore, when the fault information received by the station control system is a level 5 or level 6 fault, the battery replacement operation is performed normally, and the level 5 or level 6 fault is a resettable fault, and there is no need to call relevant personnel.

[0053] Level 5 and level 6 faults can be eliminated by resetting the station control system. If the fault cannot be eliminated after corresponding processing, it is necessary to report to the battery swap station platform and call relevant personnel for processing.

[0054] Step 4: If the fault requires human intervention, report it to the battery swap station platform and notify relevant personnel to carry out maintenance.

[0055] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. A method for handling battery abnormalities in a battery compartment of a new energy vehicle battery swap station, characterized in that: The following steps are included: Step 1: The battery swap station platform establishes a communication connection with the station control system, and the station control system establishes a communication connection with the charging module, PLC and water cooling system; Step 2: If a battery failure occurs in the battery compartment, the fault is reported to the station control system through the charging module; Step 3: The station control system receives the fault information reported by the charging module and performs different processing and control according to the fault classification definition; In step 3, the fault information is divided into six levels, including level 1 fault, level 2 fault, level 3 fault, level 4 fault, level 5 fault and level 6 fault; The first-level faults include: battery thermal runaway; The secondary faults include: excessive discharge current, excessive battery temperature and excessive single cell voltage; The three-level faults include: abnormal battery in-place in the warehouse, slight alarm of battery overtemperature, and general alarm of battery overtemperature; The four-level faults include: abnormal module discharge and input overvoltage alarm; The five-level faults include: charging module connection failure; The six-level faults include: abnormal battery access status; Step 4: If the fault requires personnel to handle, report it to the power station platform and notify relevant personnel to carry out maintenance; When the station control system receives fault information that is a level 1 fault, it triggers the firefighting of the entire station through the PLC, issues firefighting processing operations, pops up an alarm, plays a voice announcement, and reports to the battery swap station platform, calling relevant personnel to handle it; When the fault information received by the station control system is a secondary fault, the battery swap operation is stopped, the charging and discharging operations of the batteries in the compartment are suspended, and the station swap platform is reported to call relevant personnel; When the fault information received by the station control system is a level 3 or 4 fault, the current battery swap order can continue to be executed to complete the battery swap operation; the charging and discharging operations of the problematic battery in the warehouse are suspended, and the station swap platform is reported to call relevant personnel; When the fault information received by the station control system is a level 5 or level 6 fault, the battery replacement operation is performed normally, and the level 5 or level 6 fault is a resettable fault, and there is no need to call relevant personnel.

2. The method for handling battery abnormality in a battery compartment based on a new energy vehicle battery swap station according to claim 1 is characterized in that: In step 1, the battery swap station platform and the station control system use MQTT communication method, the station control system and the charging module use TCP communication for data exchange, the station control system and the PLC use tag communication, and the station control system and the water cooling system use MQTT communication method to achieve real-time data interaction and fault handling control.

3. The method for handling battery abnormality in a battery compartment based on a new energy vehicle battery swap station according to claim 1 is characterized in that: The pop-up warning is the "X" compartment battery thermal runaway alarm.

4. The method for handling battery abnormality in a battery compartment based on a new energy vehicle battery swap station according to claim 3 is characterized in that: The firefighting operations include stopping the battery swapping operation in the battery swapping station, stopping all charging and discharging operations, shutting off the water cooling of the problematic battery, spraying HFC-227ea, moving the problematic battery to the fire water tank, turning on the explosion-proof fan, triggering the sound and light alarm, and raising the front and rear rolling doors.

5. The method for handling battery abnormality in a battery compartment based on a new energy vehicle battery swap station according to claim 4 is characterized in that: The fire fighting process and reporting to the battery swap station platform are performed synchronously.

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