Battery information uploading method and electric vehicle

Abstract

The present application provides a battery information uploading method and an electric vehicle, and relates to the technical field of electric vehicles. The battery information uploading method is applied to the VCU of an electric vehicle, and the electric vehicle also includes a BMS and a Tbox, and the BMS, VCU and Tbox are communicated with each other; when the high voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS to enable the BMS to obtain power battery parameters and power battery fault information, and the power battery parameters and power battery fault information are sent to the monitoring platform through the Tbox; when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the delayed wake-up instruction is stopped from being sent to the BMS. The battery information uploading method and the electric vehicle provided by the present application have the advantages of realizing delayed monitoring of the power battery, thereby ensuring the safety of the operation of the power electric vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to a battery information uploading method and an electric vehicle. Background Art

[0002] The power battery is the source of power for electric and hybrid vehicles and one of the most important components in a vehicle. It accounts for a significant portion of the vehicle's overall cost, and the consequences of a power battery failure can be severe.

[0003] Currently, when the vehicle is powered on or charging, the relevant information of the power battery is uploaded to the vehicle monitoring platform through the Tbox. However, once the power is turned off or charging is completed, the VCU, BMS and other controllers enter sleep mode and no longer upload data.

[0004] However, in actual applications, a common situation is that the power battery may fail after being powered off or charging for a period of time. At this time, since controllers such as the VCU and BMS have entered sleep mode, data cannot be uploaded effectively.

[0005] In summary, the existing technology has the problem that data cannot be effectively uploaded after power is turned off or charging is completed. Summary of the Invention

[0006] The purpose of this application is to provide a battery information uploading method and electric vehicle to solve the problem in the prior art that data cannot be effectively uploaded after power is turned off or charging is completed.

[0007] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0008] In a first aspect, an embodiment of the present application provides a battery information uploading method, which is applied to a VCU of an electric vehicle, wherein the electric vehicle further includes a BMS and a Tbox, and the BMS, the VCU, and the Tbox are communicatively connected; the method includes:

[0009] When the high-voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS, so that the BMS obtains power battery parameters and power battery fault information, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox;

[0010] When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the sending of the delayed wake-up instruction to the BMS is stopped.

[0011] Optionally, the VCU and the BMS are connected via a hard line, and the VCU, the BMS, and the Tbox are all connected to a CAN bus. The step of sending a delayed wake-up instruction to the BMS includes:

[0012] Sending a delay monitoring instruction to the BMS via the CAN bus to enable the BMS to enter a delay monitoring mode;

[0013] A delayed wake-up instruction is sent to the BMS via the hard line to enable the BMS to operate.

[0014] Optionally, the step of sending a delayed wake-up instruction to the BMS through the hard line includes:

[0015] The +12V voltage is output to the BMS through the hard line.

[0016] Optionally, the step of disconnecting the high voltage connection of the electric vehicle includes:

[0017] When the electric vehicle is powered off or stops charging, it is determined that the high voltage connection of the electric vehicle is disconnected.

[0018] Optionally, when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the step of stopping sending the delayed wake-up instruction to the BMS includes:

[0019] When the high voltage of the electric vehicle is reconnected or the delayed monitoring reaches 30 minutes, the sending of the delayed wake-up instruction to the BMS is stopped.

[0020] In a second aspect, an embodiment of the present application further provides a battery information uploading method, which is applied to an electric vehicle, wherein the electric vehicle includes a VCU, a BMS, and a Tbox, and the BMS, the VCU, and the Tbox are communicatively connected; the method includes:

[0021] When the high voltage connection of the electric vehicle is disconnected, the VCU sends a delayed wake-up instruction to the BMS;

[0022] The BMS obtains power battery parameters and power battery fault information according to the delayed wake-up instruction, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox;

[0023] When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the VCU stops sending the delayed wake-up instruction to the BMS.

[0024] Optionally, the VCU and the BMS are connected via a hard line, and the VCU, the BMS, and the Tbox are all connected to a CAN bus. The step of the VCU sending a delayed wake-up instruction to the BMS includes:

[0025] The VCU sends a delay monitoring instruction to the BMS via the CAN bus, so that the BMS enters a delay monitoring mode;

[0026] The VCU also sends a delayed wake-up instruction to the BMS through the hard line to enable the BMS to operate.

[0027] Optionally, the step of disconnecting the high voltage connection of the electric vehicle includes:

[0028] When the electric vehicle is powered off or charging stops, the VCU determines that the high voltage connection of the electric vehicle is disconnected.

[0029] Optionally, the step of the BMS acquiring power battery parameters and power battery fault information according to the delayed wake-up instruction includes:

[0030] Obtain the remaining power battery SOC, power battery health status SOH, power battery bus current, power battery bus voltage, power battery insulation resistance, DC socket temperature, battery pack average temperature, single cell maximum / minimum temperature, single cell minimum temperature number, single cell maximum temperature number, battery pack module number of the single cell with the highest / lowest temperature, single cell voltage maximum / minimum value, single cell voltage maximum / minimum value number

[0031] Battery fault information is also generated when the SOC is too low, the SOC jumps, the power battery is overvoltage, the power battery is undervoltage, the power battery is overcurrent, the battery temperature difference is abnormal, the battery temperature is too high, the cell voltage is too high, the cell voltage is undervoltage, the cell pressure difference is too large, the insulation resistance is too low, the high-voltage interlock alarm, and the thermal runaway alarm occur.

[0032] In a third aspect, an embodiment of the present application further provides an electric vehicle, comprising a VCU, a BMS, and a Tbox, wherein the BMS, the VCU, and the Tbox are communicatively connected; wherein:

[0033] When the high voltage connection of the electric vehicle is disconnected, the VCU is used to send a delayed wake-up instruction to the BMS;

[0034] The BMS is used to obtain power battery parameters and power battery fault information according to the delayed wake-up instruction, and send the power battery parameters and power battery fault information to the monitoring platform through the Tbox;

[0035] When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the VCU is further configured to stop sending a delayed wake-up instruction to the BMS.

[0036] Compared with the prior art, this application has the following beneficial effects:

[0037] The present application provides a battery information uploading method and an electric vehicle, the battery information uploading method is applied to the VCU of the electric vehicle, the electric vehicle also includes a BMS and a Tbox, and the BMS, VCU and Tbox are communicated with each other; when the high voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS to enable the BMS to obtain power battery parameters and power battery fault information, and send the power battery parameters and power battery fault information to the monitoring platform through the Tbox; when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the delayed wake-up instruction is stopped from being sent to the BMS. Because the VCU of the present application will send a wake-up instruction to the BMS after the high voltage connection of the electric vehicle is disconnected, so that the BMS continues to collect data and feeds the data back to the monitoring platform through the Tbox, so that the data can be effectively uploaded within a period of time after power off or charging is completed, thereby realizing delayed monitoring of the power battery and ensuring the safety of the operation of the electric vehicle.

[0038] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A schematic diagram of the modules of an electric vehicle provided in an embodiment of the present application.

[0041] Figure 2 The figure is an exemplary flow chart of the battery information uploading method provided in an embodiment of the present application.

[0042] Figure 3 The figure is another exemplary flow chart of the battery information uploading method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0045] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0047] In the description of this application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0048] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0049] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0050] As described in the background, in existing electric vehicles, once the power is turned off or charging is completed, controllers such as the VCU (vehicle controller unit) and BMS (battery management system) enter sleep mode and no longer upload data. However, the applicant's research has found that power battery failures are common within a period of time after power is turned off or charging is completed, for example, within half an hour. However, because the VCU, BMS, and other controllers have entered sleep mode, they are unable to effectively upload data, resulting in a failure notification that cannot be quickly issued, further exacerbating the failure.

[0051] In view of this, the present application provides a battery information uploading method, which is applied to the VCU of an electric vehicle. By setting a delayed data upload method, after the high-voltage connection of the electric vehicle is disconnected, the BMS can still upload data to the monitoring platform through the Tbox (vehicle communication system).

[0052] Please note that Figure 1 The electric vehicle of this application includes VCU, BMS and Tbox (vehicle communication system), and the BMS, VCU and Tbox are connected to each other. Among them, BMS, VCU and Tbox are all connected to the CAN bus, and the VCU and BMS are also connected through a hard line. The VCU sends a wake-up command to the BMS through the hard line. And, Figure 1 It can be seen that VCU, BMS and Tbox are all independent modules, which can be powered by a bat power supply. Optionally, the bat power supply is a 12V power supply.

[0053] The following is based on Figure 1 The electric vehicle structure described above is used as an example to illustrate the method for uploading battery information provided in the embodiment of the present application:

[0054] As an optional implementation, see Figure 2 , the battery information uploading method includes:

[0055] S102, when the high voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS, so that the BMS obtains power battery parameters and power battery fault information, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox;

[0056] S104, when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, stop sending the delayed wake-up instruction to the BMS.

[0057] Among them, when the high-voltage connection of the electric vehicle is disconnected, the VCU will continue to send delayed wake-up instructions to the BMS. During this period, the BMS continues to collect and upload data under the drive of the delayed wake-up instructions. Moreover, when uploading is required, the BMS transmits the data to the Tbox through the CAN bus, and sends the data to the monitoring platform through the Tbox.

[0058] As an implementation method, the steps of sending a delayed wake-up instruction to the BMS include:

[0059] Send a delay monitoring command to the BMS via the CAN bus to put the BMS into delay monitoring mode;

[0060] Send a delayed wake-up command to the BMS via a hard line to enable the BMS to work.

[0061] That is, in this application, when delayed wake-up is required, the VCU first sends a delayed monitoring instruction through the CAN bus, causing the BMS to enter the delayed monitoring mode. It is understandable that the BMS may have multiple working modes. For example, when working normally, the BMS is in the normal working mode, which is not limited here. After entering the delayed monitoring instruction, the BMS will only perform the functions of data collection and fault detection. Moreover, after entering the delayed monitoring mode, the BMS will not work directly, but will only start data collection and fault detection after receiving the delayed wake-up instruction sent by the VCU through the hard line, and upload the relevant data to the monitoring platform through the Tbox.

[0062] In one optional implementation, when a delayed wake-up command is sent to the BMS via a hardwire, the VCU actually outputs +12V to the BMS via a hardwire. That is, in this application, after the electric vehicle's high-voltage connection is disconnected, the VCU continues to output 12V to the BMS for a period of time. When the BMS wake-up port continuously receives a high level, the BMS executes the data collection and fault diagnosis steps.

[0063] As an implementation method, the high-voltage connection disconnection described in this application can be used to power off the electric vehicle or stop charging. When the electric vehicle is powered off, it is when the user stops the electric vehicle and turns off the engine. When charging is stopped, it is when the user unplugs the charging plug.

[0064] As an implementation method, the power battery parameters collected by the BMS include the remaining power battery capacity (SOC), power battery health status (SOH), power battery bus current, power battery bus voltage, power battery insulation resistance, DC socket temperature, battery pack average temperature, single cell maximum / minimum temperature, single cell minimum temperature value number, single cell maximum temperature value number, battery pack module number of the single cell with the highest / lowest temperature, single cell voltage maximum / minimum value, and single cell voltage maximum / minimum value number. In addition, the BMS determines whether the power battery has a fault, which actually means determining whether the power battery has a low SOC, SOC jump, power battery overvoltage, power battery undervoltage, power battery overcurrent, abnormal battery temperature difference, high battery temperature, high single cell voltage, low single cell voltage, excessive single cell voltage difference, low insulation resistance, high voltage interlock alarm, thermal runaway alarm, and other faults.

[0065] When the delayed monitoring preset time expires or the electric vehicle's high voltage is reconnected, the VCU stops sending delayed wake-up instructions to the BMS. For example, if the preset time is set to 30 minutes, when 30 minutes is reached, the VCU stops sending delayed wake-up instructions to the BMS. Alternatively, when the user restarts the electric vehicle or recharges it, the VCU also stops sending delayed wake-up instructions to the BMS.

[0066] Understandably, during actual operation, the VCU continuously loops to determine whether the electric vehicle's high voltage has been reconnected and whether the delay time has reached a preset monitoring time, for example, every 1 second. If either condition is met, it stops sending the delayed wake-up command to the BMS, causing the BMS to stop uploading power battery information and each controller to enter a dormant state.

[0067] The battery information uploading method provided in this application can ensure that after the high-voltage connection of the electric vehicle is disconnected, the BMS can still collect power battery parameters and power battery fault information within a certain delay time, so that the monitoring platform can determine whether the power battery has a fault.

[0068] Based on the above implementation, the embodiment of the present application also provides a battery information uploading method, which is applied to an electric vehicle. The electric vehicle includes a VCU, a BMS and a Tbox, and the BMS, VCU and Tbox are communicated with each other; please refer to Figure 3 , the method comprising:

[0069] S202, when the high voltage connection of the electric vehicle is disconnected, the VCU sends a delayed wake-up instruction to the BMS;

[0070] S204, the BMS obtains power battery parameters and power battery fault information according to the delayed wake-up instruction, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox;

[0071] S206 , when the delayed monitoring preset time is reached or the high voltage of the electric vehicle is reconnected, the VCU stops sending the delayed wake-up instruction to the BMS.

[0072] Optionally, the VCU and the BMS are connected via a hard line, and the VCU, the BMS, and the Tbox are all connected to a CAN bus. The step of the VCU sending a delayed wake-up instruction to the BMS includes:

[0073] The VCU sends a delay monitoring command to the BMS via the CAN bus, so that the BMS enters the delay monitoring mode;

[0074] The VCU also sends a delayed wake-up instruction to the BMS through a hard line to enable the BMS to work.

[0075] The steps of disconnecting the high voltage connection of the electric vehicle include:

[0076] When the electric vehicle is powered off or stops charging, the VCU determines that the high voltage connection of the electric vehicle is disconnected.

[0077] In addition, the power battery parameters include:

[0078] Obtain the remaining power battery SOC, power battery health status SOH, power battery bus current, power battery bus voltage, power battery insulation resistance, DC socket temperature, battery pack average temperature, single cell maximum / minimum temperature, single cell minimum temperature number, single cell maximum temperature number, battery pack module number of the single cell with the highest / lowest temperature, single cell voltage maximum / minimum value, single cell voltage maximum / minimum value number

[0079] Power battery fault information includes: SOC too low, SOC jump, power battery overvoltage, power battery undervoltage, power battery overcurrent, abnormal battery temperature difference, battery temperature too high, single cell voltage too high, single cell voltage undervoltage, single cell pressure difference too large, insulation resistance too low, high voltage interlock alarm, thermal runaway alarm.

[0080] Based on the above implementation method, an embodiment of the present application also provides an electric vehicle, which includes a VCU, a BMS and a Tbox, and the BMS, VCU and Tbox are communicatively connected; wherein, when the high voltage connection of the electric vehicle is disconnected, the VCU is used to send a delayed wake-up instruction to the BMS; the BMS is used to obtain power battery parameters and power battery fault information based on the delayed wake-up instruction, and send the power battery parameters and power battery fault information to the monitoring platform through the Tbox; when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the VCU is also used to stop sending the delayed wake-up instruction to the BMS.

[0081] In summary, the present application provides a battery information uploading method and an electric vehicle, the battery information uploading method is applied to the VCU of the electric vehicle, the electric vehicle also includes a BMS and a Tbox, and the BMS, VCU and Tbox are communicated with each other; when the high voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS to enable the BMS to obtain power battery parameters and power battery fault information, and send the power battery parameters and power battery fault information to the monitoring platform through the Tbox; when the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the delayed wake-up instruction is stopped from being sent to the BMS. Because the VCU of the present application will send a wake-up instruction to the BMS after the high voltage connection of the electric vehicle is disconnected, so that the BMS continues to collect data and feeds the data back to the monitoring platform through the Tbox, so that the data can be effectively uploaded within a period of time after power off or charging is completed, thereby realizing delayed monitoring of the power battery and ensuring the safety of the operation of the electric vehicle.

[0082] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0083] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A battery information uploading method, characterized in that: A VCU is applied to an electric vehicle, wherein the electric vehicle further includes a BMS and a Tbox, wherein the BMS, the VCU, and the Tbox are communicatively connected to each other; and the method includes: When the high-voltage connection of the electric vehicle is disconnected, a delayed wake-up instruction is sent to the BMS, so that the BMS obtains power battery parameters and power battery fault information, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox; When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, stop sending the delayed wake-up instruction to the BMS; The VCU and the BMS are connected via a hard line, and the VCU, the BMS, and the Tbox are all connected to a CAN bus. The step of sending a delayed wake-up instruction to the BMS includes: Sending a delay monitoring instruction to the BMS via the CAN bus to enable the BMS to enter a delay monitoring mode; A delayed wake-up instruction is sent to the BMS via the hard line to enable the BMS to operate.

2. The battery information uploading method according to claim 1, wherein: The step of sending a delayed wake-up instruction to the BMS via the hard line includes: The +12V voltage is output to the BMS through the hard line.

3. The battery information uploading method according to claim 1, wherein: The step of disconnecting the high voltage connection of the electric vehicle comprises: When the electric vehicle is powered off or stops charging, it is determined that the high voltage connection of the electric vehicle is disconnected.

4. The battery information uploading method according to claim 1, wherein: When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the step of stopping sending the delayed wake-up instruction to the BMS includes: When the high voltage of the electric vehicle is reconnected or the delayed monitoring reaches 30 minutes, the sending of the delayed wake-up instruction to the BMS is stopped.

5. A battery information uploading method, characterized in that: Applied to an electric vehicle, the electric vehicle includes a VCU, a BMS, and a Tbox, and the BMS, the VCU, and the Tbox are communicatively connected; the method includes: When the high voltage connection of the electric vehicle is disconnected, the VCU sends a delayed wake-up instruction to the BMS; The BMS obtains power battery parameters and power battery fault information according to the delayed wake-up instruction, and sends the power battery parameters and power battery fault information to the monitoring platform through the Tbox; When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the VCU stops sending the delayed wake-up instruction to the BMS; The VCU and the BMS are connected via a hard line, and the VCU, the BMS, and the Tbox are all connected to a CAN bus. The step of the VCU sending a delayed wake-up instruction to the BMS includes: The VCU sends a delay monitoring instruction to the BMS via the CAN bus, so that the BMS enters a delay monitoring mode; The VCU also sends a delayed wake-up instruction to the BMS through the hard line to enable the BMS to operate.

6. The battery information uploading method according to claim 5, characterized in that: The step of disconnecting the high voltage connection of the electric vehicle comprises: When the electric vehicle is powered off or charging stops, the VCU determines that the high voltage connection of the electric vehicle is disconnected.

7. The battery information uploading method according to claim 5, wherein: The step of the BMS acquiring power battery parameters and power battery fault information according to the delayed wake-up instruction includes: Obtain the remaining power battery capacity (SOC), power battery health status (SOH), power battery bus current, power battery bus voltage, power battery insulation resistance, DC socket temperature, battery pack average temperature, maximum / minimum temperature of a single cell, the number of the lowest cell temperature, the number of the highest cell temperature, the battery pack module number of the highest / lowest cell temperature, the maximum / minimum cell voltage, and the number of the highest / minimum cell voltage. Battery fault information is also generated when the SOC is too low, the SOC jumps, the power battery is overvoltage, the power battery is undervoltage, the power battery is overcurrent, the battery temperature difference is abnormal, the battery temperature is too high, the cell voltage is too high, the cell voltage is undervoltage, the cell pressure difference is too large, the insulation resistance is too low, the high-voltage interlock alarm, and the thermal runaway alarm occur.

8. An electric vehicle, characterized in that: The electric vehicle is used to execute the battery information uploading method according to any one of claims 5 to 7, and the electric vehicle includes a VCU, a BMS and a Tbox, and the BMS, the VCU and the Tbox are communicatively connected; wherein, When the high voltage connection of the electric vehicle is disconnected, the VCU is used to send a delayed wake-up instruction to the BMS; The BMS is used to obtain power battery parameters and power battery fault information according to the delayed wake-up instruction, and send the power battery parameters and power battery fault information to the monitoring platform through the Tbox; When the delayed monitoring preset time or the high voltage of the electric vehicle is reconnected, the VCU is further configured to stop sending a delayed wake-up instruction to the BMS.

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