Lithium battery intelligent control system, vehicle-mounted equipment, vehicle and method

Abstract

The invention relates to a lithium battery intelligent control system, vehicle-mounted equipment, a vehicle and a method, and belongs to the technical field of lithium batteries, and the system comprises a lithium battery controller which is used for sending current information of a lithium battery to a whole vehicle controller when the current output by the lithium battery is detected to be smaller than or equal to a preset current value; the whole vehicle controller is used for sending a disconnection instruction to the lithium battery controller when determining that the whole vehicle is in a high-voltage state and enters a dormant state based on the current information and the whole vehicle state information; and the lithium battery controller is also used for controlling the lithium battery to stop supplying power based on the disconnection instruction. According to the intelligent control system for the lithium battery, the MOS switch of the lithium battery can be intelligently switched off when the lithium battery cannot normally sleep due to the abnormality of the whole vehicle, so that the electric quantity loss of the lithium battery caused by the abnormal large power consumption of the whole vehicle is cut off, the sufficient electric quantity of the lithium battery can be ensured, and a guarantee for starting the vehicle is provided for a user; the situation that vehicle feed cannot be normally started due to vehicle abnormity is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery technology, and in particular to a lithium battery intelligent control system, vehicle-mounted equipment, vehicle and method. Background Art

[0002] As the representative of new energy, new energy vehicles have the advantages of economy, energy saving and environmental protection. The batteries of new energy vehicles include high-voltage power battery packs, which provide power for the electric motors of new energy vehicles, referred to as large batteries; and low-voltage 12V batteries (lithium batteries) provide lighting and steering assistance for car instruments and steering wheels, referred to as small batteries.

[0003] After the vehicle is under high voltage, it will enter sleep mode. However, during the sleep mode, some controllers may not be able to sleep normally. At this time, the low-voltage power consumption of the vehicle will be very large. Because the vehicle is under high voltage, the low-voltage power consumption of the vehicle is completely provided by the 12V lithium battery. Therefore, the 12V lithium battery is very easy to be powered off, which will cause the user to fail to start the vehicle the next time, resulting in user complaints and a low user experience. Summary of the invention

[0004] In view of this, it is necessary to provide a lithium battery intelligent control system, vehicle-mounted equipment, vehicle and method to solve the problem of power feeding when the lithium battery cannot sleep due to an abnormality of the entire vehicle.

[0005] In order to solve the above problems, in a first aspect, the present invention provides a lithium battery intelligent control system, comprising: Vehicle controller and lithium battery controller; The lithium battery controller is used to send the current information of the lithium battery to the vehicle controller when detecting that the current output by the lithium battery is less than or equal to a preset current value; The vehicle controller is used to send a disconnection instruction to the lithium battery controller when it is determined that the vehicle has been under high voltage and entered a dormant state based on the current information and the vehicle status information; The lithium battery controller is further used to control the lithium battery to stop supplying power based on the disconnection instruction.

[0006] In a possible implementation, the method further includes: The intelligent network connection controller is used to receive the power supply stop information of the lithium battery and send the power supply stop information to the user terminal.

[0007] In a possible implementation, the lithium battery controller is further used for: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

[0008] In a possible implementation, the vehicle status information includes the vehicle speed; the vehicle controller is specifically used to: After receiving the battery information, determining whether the vehicle speed is zero; When the vehicle speed is zero, the disconnection instruction is sent to the lithium battery controller.

[0009] In a possible implementation, the intelligent network connection controller is further used for: The power supply stop information is sent to the user terminal in text form.

[0010] In a second aspect, the present invention further provides a vehicle-mounted device, comprising the lithium battery intelligent control system described in any of the above implementations.

[0011] In a third aspect, the present invention further provides a vehicle, comprising the vehicle-mounted device described in the above implementation manner.

[0012] In a fourth aspect, the present invention further provides a lithium battery intelligent control method, which is applied to the lithium battery intelligent control system described in any of the above implementations, comprising: When it is detected that the current output by the lithium battery is less than or equal to the preset current value, the current information of the lithium battery is sent to the vehicle controller; When the vehicle controller determines that the vehicle has been under high voltage and entered a dormant state according to the current information and the vehicle status information, a disconnection instruction is sent to the lithium battery controller; The lithium battery is controlled to stop supplying power through the lithium battery controller and the disconnection instruction.

[0013] In a possible implementation, after controlling the lithium battery to stop supplying power through the lithium battery controller and the disconnection instruction, the method further includes: The power supply stop information of the lithium battery is received through the intelligent network connection controller, and the power supply stop information is sent to the user terminal.

[0014] In a possible implementation, after controlling the lithium battery to stop supplying power through the lithium battery controller and the disconnection instruction, the method further includes: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

[0015] The beneficial effects of the present invention are as follows: the lithium battery intelligent control system, vehicle-mounted equipment, vehicle and method provided by the present invention, when the lithium battery controller detects that the current output by the lithium battery is less than or equal to a preset current value, the current information of the lithium battery is sent to the vehicle controller, and the vehicle controller determines that the current vehicle has been under high voltage and entered a sleep state based on the current information and the vehicle status information. The lithium battery cannot be put to sleep due to the abnormality of the vehicle, and a disconnection instruction is sent to the lithium battery controller, so that the lithium battery controller controls the lithium battery to stop supplying power according to the disconnection instruction. When the lithium battery cannot be put to sleep normally due to the abnormality of the vehicle, the MOS switch of the lithium battery can be intelligently disconnected, thereby cutting off the power loss of the lithium battery due to the abnormal high power consumption of the vehicle, and ensuring sufficient power of the lithium battery, providing users with a guarantee for starting the vehicle, avoiding the vehicle power supply failure to start normally due to the abnormality of the vehicle, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of the structure of an embodiment of the lithium battery intelligent control system provided by the present invention; Figure 2 One of the flow charts of an embodiment of the lithium battery intelligent control method provided by the present invention; Figure 3 The second flowchart of an embodiment of the lithium battery intelligent control method provided by the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the embodiments of the present invention, unless otherwise specified, "multiple" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" may mean: A exists alone, A and B exist at the same time, and B exists alone.

[0020] The descriptions of "first", "second", etc. involved in the embodiments of the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] The present invention provides a lithium battery intelligent control system, vehicle-mounted equipment, vehicle and method, which are respectively described below.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the lithium battery intelligent control system provided by the present invention is shown in FIG. Figure 1 As shown, the lithium battery intelligent control system 100 includes: Vehicle controller 101 and lithium battery controller 102; The lithium battery controller 102 is used to send the current information of the lithium battery to the vehicle controller 101 when detecting that the current output by the lithium battery is less than or equal to a preset current value; The vehicle controller 101 is used to send a disconnection instruction to the lithium battery controller 102 when it is determined that the vehicle has been under high voltage and entered a dormant state based on the current information and the vehicle state information; The lithium battery controller 102 is further configured to control the lithium battery to stop supplying power based on the disconnection instruction.

[0024] It should be noted that the lithium battery in the embodiment of the present invention is a small battery of a new energy vehicle battery, and the small battery is a 12V lithium battery. The new energy vehicle battery also includes a large battery, and the large battery is a high-voltage power battery pack.

[0025] The lithium battery controller can control the 12V lithium battery to supply power by controlling the closing or opening of the MOS switch.

[0026] The lithium battery controller is a battery management system (LBM) for lithium batteries. It can monitor the battery status of lithium batteries, including parameters such as current, voltage, and temperature, and perform corresponding control operations based on these parameters.

[0027] The lithium battery controller can monitor the output current of the lithium battery in real time. When the lithium battery controller has no faults and detects that the output current is ≤ the preset current value, the current information is sent to the vehicle controller so that the vehicle controller can determine whether the MOS switch needs to be disconnected.

[0028] Among them, the preset current value can be set according to the low power consumption requirement of the vehicle in a parking state, etc., and the preset current value can be 1A.

[0029] The vehicle control unit (VCU) can monitor the status of the vehicle. The vehicle control unit receives the lithium battery current information sent by the lithium battery controller and combines it with the vehicle status information to determine whether the vehicle has been de-energized and entered a dormant state. When the vehicle is de-energized, the high-voltage power battery pack stops supplying power and the vehicle enters a dormant state.

[0030] However, some controllers may fail to enter the sleep state normally due to software bugs, hardware failures or communication anomalies. These controllers will continue to consume the power of the 12V lithium battery, resulting in excessive static power consumption. In other words, when an abnormality occurs and the lithium battery cannot sleep, a disconnection command needs to be sent to the lithium battery controller. The disconnection command is used to instruct the MOS switch to disconnect the lithium battery.

[0031] After receiving the disconnection command, the lithium battery controller controls the MOS switch of the lithium battery to disconnect according to the disconnection command, so that the lithium battery stops supplying power and enters a dormant state, avoiding power feeding when the lithium battery cannot sleep due to an abnormality.

[0032] The lithium battery intelligent control system provided by the embodiment of the present invention detects through the lithium battery controller that the current output by the lithium battery is less than or equal to the preset current value, and sends the current information of the lithium battery to the vehicle controller. The vehicle controller determines that the current vehicle has been under high voltage and entered a sleep state based on the current information and the vehicle status information. The lithium battery cannot be put into sleep due to the abnormality of the vehicle, and a disconnection instruction is sent to the lithium battery controller, so that the lithium battery controller controls the lithium battery to stop supplying power according to the disconnection instruction. When the lithium battery cannot be put into sleep normally due to the abnormality of the vehicle, the MOS switch of the lithium battery can be intelligently disconnected, thereby cutting off the power loss of the lithium battery due to the abnormal high power consumption of the vehicle, which can ensure sufficient power of the lithium battery, provide users with the guarantee of starting the vehicle, avoid the vehicle power supply failure to start normally due to the abnormality of the vehicle, and improve the user experience.

[0033] In some embodiments of the present invention, it further comprises: The intelligent network connection controller is used to receive the power supply stop information of the lithium battery and send the power supply stop information to the user terminal.

[0034] The intelligent network controller (Telematics Box, Tbox) integrates the vehicle body network and wireless communication functions, and is mainly used in the Internet of Vehicles system. Tbox connects the vehicle CAN bus and the external cloud platform to achieve communication and data exchange between vehicles, vehicles and infrastructure, and vehicles and the Internet.

[0035] The lithium battery controller sends the lithium battery power supply stop information to the intelligent network controller. After receiving the disconnection information, the intelligent network controller sends the disconnection information to the user terminal to remind the user that the low-voltage lithium battery has been disconnected in order to save the power of the low-voltage lithium battery. Through the intelligent network controller, the system can send vehicle status information to the user terminal to help users understand the vehicle operation status in a timely manner and take corresponding countermeasures.

[0036] In some embodiments of the present invention, the vehicle status information includes the vehicle speed.

[0037] The vehicle controller 101 is specifically used for: After receiving the battery information, determining whether the vehicle speed is zero; When the vehicle speed is zero, the disconnection instruction is sent to the lithium battery controller 102 .

[0038] After receiving the current information that the output current of the lithium battery is ≤1A, the vehicle controller determines whether the MOS switch can be disconnected at this time in combination with the vehicle status information.

[0039] When the vehicle status information includes the vehicle speed, the vehicle controller determines whether the vehicle speed is zero. If so, the vehicle controller sends a disconnection command to the lithium battery controller; if not, the vehicle controller does not take any action and executes according to the normal control logic.

[0040] For example, when the vehicle speed is not zero, the MOS cannot be disconnected, and the vehicle power supply must be guaranteed first. That is, whether the MOS switch can be disconnected depends mainly on the vehicle speed. When the vehicle is stationary, the MOS switch can be disconnected without affecting driving safety.

[0041] Optionally, the VCU may also comprehensively consider multiple vehicle status information to determine whether the MOS can be disconnected. The vehicle status information may also include the vehicle startup status or the operation status of other electrical equipment.

[0042] In some embodiments of the present invention, the lithium battery controller 102 is further used for: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

[0043] After the MOS switch is turned off, the lithium battery enters a dormant mode and stops supplying power. When the lithium battery controller receives an unlocking operation of the vehicle, it controls the MOS switch of the lithium battery to close in response to the unlocking operation, so as to control the lithium battery to start supplying power.

[0044] The unlocking operation may include the door opening operation, that is, when the user uses the car next time, the hard-wire signal on the door is transmitted to the lithium battery controller when the door is opened. When the lithium battery controller receives the hard-wire signal, the lithium battery controller closes the MOS switch and outputs power.

[0045] The lithium battery intelligent control system provided in the embodiment of the present invention can quickly respond when the vehicle is unlocked and reconnect the lithium battery power supply to ensure the operation of the vehicle.

[0046] In some embodiments of the present invention, the intelligent network connection controller is further used for: The power supply stop information is sent to the user terminal in text form.

[0047] After receiving the power supply stop information of the lithium battery, the intelligent network controller uses the mobile communication network to send the processed text information to the user's mobile phone APP, so that the words "In order to save low-voltage battery power, the low-voltage battery has been disconnected" are displayed on the APP.

[0048] During the transmission process, Tbox will encrypt and encapsulate the information to ensure its security and accuracy. After receiving the information, the user's mobile phone APP will decrypt and display it so that the user can understand the status of the vehicle's low-voltage battery in a timely manner.

[0049] Figure 2 One of the flow charts of an embodiment of the lithium battery intelligent control method provided by the present invention is as follows: Figure 2 As shown, the lithium battery intelligent control method includes: S201. When it is detected that the current output by the lithium battery is less than or equal to a preset current value, the current information of the lithium battery is sent to a vehicle controller.

[0050] It should be noted that the execution entity of the lithium battery intelligent control method provided by the present invention can be the lithium battery intelligent control system described in any of the above implementation modes.

[0051] The lithium battery in the embodiment of the present invention is a small battery of a new energy vehicle battery, and the small battery is a 12V lithium battery. The new energy vehicle battery also includes a large battery, and the large battery is a high-voltage power battery pack.

[0052] The lithium battery controller can monitor the output current of the lithium battery in real time. When the lithium battery controller has no faults and detects that the output current is ≤ the preset current value, the current information is sent to the vehicle controller so that the vehicle controller can determine whether the MOS switch needs to be disconnected.

[0053] Among them, the preset current value can be set according to the low power consumption requirement of the vehicle in a parking state, etc., and the preset current value can be 1A.

[0054] S202: When the vehicle controller determines, based on the current information and the vehicle status information, that the vehicle has been under high voltage and entered a dormant state, a disconnection instruction is sent to the lithium battery controller.

[0055] The vehicle controller can monitor the status of the vehicle. The vehicle controller receives the lithium battery current information sent by the lithium battery controller and combines it with the vehicle status information to determine whether the vehicle has been de-energized and entered a dormant state. When the vehicle is de-energized, the high-voltage power battery pack stops supplying power and the vehicle enters a dormant state.

[0056] However, some controllers may fail to enter the sleep state normally due to software bugs, hardware failures or communication anomalies. These controllers will continue to consume the power of the 12V lithium battery, resulting in excessive static power consumption. In other words, when an abnormality occurs and the lithium battery cannot sleep, a disconnection command needs to be sent to the lithium battery controller. The disconnection command is used to instruct the MOS switch to disconnect the lithium battery.

[0057] S203, controlling the lithium battery to stop supplying power through the lithium battery controller and the disconnection instruction.

[0058] After receiving the disconnection command, the lithium battery controller controls the MOS switch of the lithium battery to disconnect according to the disconnection command, so that the lithium battery stops supplying power and enters a dormant state, avoiding power feeding when the lithium battery cannot sleep due to an abnormality.

[0059] To sum up, the lithium battery intelligent control method provided by the embodiment of the present invention, when the lithium battery controller detects that the current output by the lithium battery is less than or equal to the preset current value, the current information of the lithium battery is sent to the vehicle controller. The vehicle controller determines that the current vehicle has been under high voltage and entered a sleep state based on the current information and the vehicle status information. The lithium battery cannot be put into sleep due to the abnormality of the vehicle, and the disconnection instruction is sent to the lithium battery controller, so that the lithium battery controller controls the lithium battery to stop supplying power according to the disconnection instruction. When the lithium battery cannot be put into sleep normally due to the abnormality of the vehicle, the MOS switch of the lithium battery can be intelligently disconnected, thereby cutting off the power loss of the lithium battery due to the abnormal high power consumption of the vehicle, which can ensure sufficient power of the lithium battery, provide users with the guarantee of starting the vehicle, avoid the vehicle power supply failure to start normally due to the abnormality of the vehicle, and improve the user experience.

[0060] In some embodiments of the present invention, after controlling the lithium battery to stop supplying power through the lithium battery controller and the disconnection instruction, the method further includes: The power supply stop information of the lithium battery is received through the intelligent network connection controller, and the power supply stop information is sent to the user terminal.

[0061] The lithium battery controller sends the lithium battery power supply stop information to the intelligent network controller. After receiving the power supply stop information, the intelligent network controller sends the disconnection information to the user terminal to remind the user that the low-voltage lithium battery has been disconnected in order to save the power of the low-voltage lithium battery. Through the intelligent network controller, the system can send vehicle status information to the user terminal to help users understand the vehicle operation status in a timely manner and take corresponding countermeasures.

[0062] In some embodiments of the present invention, after controlling the lithium battery to stop supplying power through the lithium battery controller and the disconnection instruction, the method further includes: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

[0063] After the MOS switch is turned off, the lithium battery enters a dormant mode and stops supplying power. When the lithium battery controller receives an unlocking operation of the vehicle, it controls the MOS switch of the lithium battery to close in response to the unlocking operation, so as to control the lithium battery to start supplying power.

[0064] The unlocking operation may include the door opening operation, that is, when the user uses the car next time, the hard-wire signal on the door is transmitted to the lithium battery controller when the door is opened. When the lithium battery controller receives the hard-wire signal, the lithium battery controller closes the MOS switch and outputs power.

[0065] That is, the present invention provides a new energy vehicle 12V lithium battery intelligent MOS control system and method, the intelligent MOS control system includes a control subsystem and an execution subsystem, the control subsystem includes a VCU, and the execution subsystem includes an LBM and a Tbox.

[0066] Based on the above intelligent MOS control system, Figure 3 As shown, Figure 3 The second embodiment of the flow chart of the lithium battery intelligent control method provided by the present invention includes: S301, 12V lithium battery BMS (LBM) has no fault; S302, LBM detects its own output current. If the output current is ≤1A, LBM sends this status to VCU; S303, after receiving the information, the VCU determines whether the MOS can be disconnected at this time based on the actual status of the vehicle; S304, if yes, the VCU sends a MOS disconnection instruction to the LBM, if no, the VCU does not take any action and executes according to the normal control logic; S305, after receiving the VCU disconnection instruction, LBM disconnects the MOS and feeds back the disconnection status to the VCU and Tbox; S306. After receiving the information, Tbox sends the MOS disconnection information to the user's mobile phone APP in the form of a text message, which displays "In order to save the low-voltage battery power, the low-voltage battery has been disconnected"; S307. When the user opens the door of the car next time, the hard-wire signal on the door is transmitted to the LBM. When the LBM receives the hard-wire signal, the LBM closes the MOS to output power.

[0067] The beneficial effect of the present invention is that when the 12V lithium battery of the new energy vehicle is abnormal and cannot sleep normally, the MOS of the 12V lithium battery can be intelligently disconnected, thereby cutting off the power loss of the lithium battery caused by the abnormal high power consumption of the whole vehicle, ensuring sufficient power of the 12V lithium battery, providing users with a guarantee for starting the vehicle, and avoiding complaints from users due to the failure of vehicle power supply to start normally due to the abnormality of the whole vehicle.

[0068] On the basis of the lithium battery intelligent control system provided in the above embodiments, the present invention further provides a vehicle-mounted device accordingly, and the vehicle-mounted device includes the lithium battery intelligent control system provided in any of the above implementations.

[0069] The vehicle-mounted device is an electronic device or system installed on the vehicle to realize a specific function. In the embodiment of the present invention, the vehicle-mounted device integrates a lithium battery intelligent control system, and the vehicle-mounted device can realize all the technical effects of the lithium battery intelligent control system provided by any of the above implementations.

[0070] Based on the vehicle-mounted equipment provided in the above embodiments, the present invention also provides a vehicle accordingly, the vehicle includes the vehicle-mounted equipment provided in the above implementation method, and the vehicle can also achieve all the technical effects of the lithium battery intelligent control system provided in any of the above implementation methods.

[0071] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware (such as a processor, a controller, etc.) through a computer program, and the computer program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0072] The above is a detailed introduction to the lithium battery intelligent control system, on-board equipment, vehicle and method provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A lithium battery intelligent control system, characterized in that: include: Vehicle controller and lithium battery controller; The lithium battery controller is used to send the current information of the lithium battery to the vehicle controller when detecting that the current output by the lithium battery is less than or equal to a preset current value; The vehicle controller is used to send a disconnection instruction to the lithium battery controller when it is determined that the vehicle has been under high voltage and entered a dormant state based on the current information and the vehicle status information; The lithium battery controller is further used to control the lithium battery to stop supplying power based on the disconnection instruction.

2. The lithium battery intelligent control system according to claim 1, characterized in that: Also includes: The intelligent network connection controller is used to receive the power supply stop information of the lithium battery and send the power supply stop information to the user terminal.

3. The lithium battery intelligent control system according to claim 1, characterized in that: The lithium battery controller is also used for: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

4. The lithium battery intelligent control system according to claim 1, characterized in that: The vehicle status information includes the vehicle speed; The vehicle controller is specifically used for: After receiving the battery information, determining whether the vehicle speed is zero; When the vehicle speed is zero, the disconnection instruction is sent to the lithium battery controller.

5. The lithium battery intelligent control system according to claim 2, characterized in that: The intelligent network connection controller is also used for: The power supply stop information is sent to the user terminal in text form.

6. A vehicle-mounted device, characterized in that: A lithium battery intelligent control system comprising any one of claims 1 to 5.

7. A vehicle, characterized in that: Includes the vehicle-mounted device as described in claim 6.

8. A lithium battery intelligent control method, characterized in that: The lithium battery intelligent control system according to any one of claims 1 to 5 comprises: When it is detected that the current output by the lithium battery is less than or equal to the preset current value, the current information of the lithium battery is sent to the vehicle controller; When the vehicle controller determines that the vehicle has been under high voltage and entered a dormant state according to the current information and the vehicle status information, a disconnection instruction is sent to the lithium battery controller; The lithium battery is controlled to stop supplying power through the lithium battery controller and the disconnection instruction.

9. The lithium battery intelligent control method according to claim 8, characterized in that: After the lithium battery controller and the disconnection instruction are used to control the lithium battery to stop supplying power, the method further includes: The power supply stop information of the lithium battery is received through the intelligent network connection controller, and the power supply stop information is sent to the user terminal.

10. The lithium battery intelligent control method according to claim 8, characterized in that: After the lithium battery controller and the disconnection instruction are used to control the lithium battery to stop supplying power, the method further includes: Receiving an unlocking operation of the vehicle; In response to the unlocking operation, the lithium battery is controlled to start supplying power.

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