A safety status detection device and control method for an on-board intelligent energy storage system

Abstract

This invention discloses a safety status detection device and control method for an on-board intelligent energy storage system, relating to the field of new energy vehicle technology. It includes: an information processing module for acquiring driving environment information and vehicle driving parameter information of the target vehicle; a data fusion module for identifying intelligent driving scenario information of the target vehicle by fusing driving environment information and vehicle driving parameter information; a planning module for planning the driving trajectory and actions of the target vehicle based on the intelligent driving scenario information; and a decision-making module for determining the safety status of the target vehicle based on the vehicle driving parameter information and intelligent driving scenario information, and determining target control decisions based on the safety status. This invention alleviates the technical problems of collisions occurring in real-world driving scenarios due to the inability to obtain correct prompts or control the vehicle.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, specifically to a safety status detection device and control method for an on-board intelligent energy storage system. Background Technology

[0002] With the increasingly severe environmental issues and international energy situation, the development of new energy vehicles has received more and more attention in order to better solve energy and environmental protection problems. In recent years, the field of intelligent new energy vehicles has also been developing rapidly, and the functions of cars have become more abundant. Cars are not only used as a means of transportation, but also as a mobile office for customers. Therefore, the requirements for car user experience and the safety of various functions are getting higher and higher.

[0003] Several safety incidents have occurred in the field of intelligent driving. These include predictable events such as battery overheating and fires, as well as unpredictable collisions caused by lane departures. Therefore, in real-world driving scenarios, there are various types of vehicle malfunctions, leading to situations where vehicles fail to receive correct warnings or lose control, resulting in collisions. Summary of the Invention

[0004] The purpose of this invention is to provide a safety status detection device and control method for an on-board intelligent energy storage system in order to solve at least one of the above-mentioned technical problems.

[0005] In a first aspect, embodiments of the present invention provide a safety status detection device for an on-board intelligent energy storage system, comprising: an information processing module, a data fusion module, a planning module, and a decision module; wherein, the information processing module is connected to the sensors and power domain controller of the target vehicle, and the decision module is connected to the power domain controller and the control module of the target vehicle; the information processing module is used to acquire driving environment information and vehicle driving parameter information of the target vehicle; the data fusion module is used to identify intelligent driving scenario information of the target vehicle by fusing the driving environment information and the vehicle driving parameter information; the planning module is used to plan the driving trajectory and driving action of the target vehicle based on the intelligent driving scenario information; the decision module is used to determine the safety status of the target vehicle based on the vehicle driving parameter information and the intelligent driving scenario information, and to determine a target control decision based on the safety status; the decision module is further used to send control commands to the power domain controller and the control module based on the target control decision, so that the power domain controller and the control module execute target safety actions based on the control commands.

[0006] Furthermore, the information processing module includes: an image processing module, a point cloud processing module, and a motion state processing module; wherein, the image processing module and the point cloud processing module are used to acquire the driving environment information of the target vehicle; and the motion state processing module is used to acquire the vehicle driving parameter information of the target vehicle.

[0007] Furthermore, the sensors of the target vehicle include: a camera, a 4D millimeter-wave radar, a lidar, and an inertial sensor; wherein, the image processing module is connected to the camera, the point cloud processing module is connected to the 4D millimeter-wave radar and the lidar, and the motion state processing module is connected to the inertial sensor and the power domain controller.

[0008] Furthermore, the control module of the target vehicle includes: an alarm module, a vehicle lateral control module, and a vehicle longitudinal control module.

[0009] Furthermore, the decision-making module is also communicatively connected to the cloud module; wherein, the decision-making module is also used to send the driving environment information, the vehicle driving parameter information, and the safety status to the cloud module for storage.

[0010] Furthermore, the vehicle driving parameter information also includes: energy storage system temperature information, current information, voltage information, and instrument display information; the target control decision includes: current limiting, overvoltage protection, high voltage cutoff, and instrument display alarm.

[0011] Secondly, embodiments of the present invention also provide a control method for a safety status detection device for an on-board intelligent energy storage system. The method includes: acquiring driving environment information and vehicle driving parameter information of a target vehicle; identifying intelligent driving scenario information of the target vehicle by fusing the driving environment information and the vehicle driving parameter information; planning the driving trajectory and driving action of the target vehicle based on the intelligent driving scenario information; determining the safety status of the target vehicle based on the vehicle driving parameter information and the intelligent driving scenario information, and determining a target control decision based on the safety status; and sending control commands to the power domain controller and the control module of the target vehicle based on the target control decision, so that the power domain controller and the control module execute target safety actions based on the control commands.

[0012] Furthermore, acquiring the driving environment information and vehicle driving parameter information of the target vehicle includes: acquiring the driving environment information of the target vehicle through a camera, 4D millimeter-wave radar, and lidar; acquiring the vehicle driving parameter information through an inertial sensor and the power domain controller; wherein the vehicle driving parameter information includes vehicle motion parameters and power domain parameters.

[0013] Furthermore, the power domain parameters include: energy storage system temperature information, current information, voltage information, and instrument display information; the target control decisions include: current limiting, overvoltage protection, high voltage cutoff, and instrument display alarm.

[0014] Thirdly, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the method provided in the embodiments of the present invention.

[0015] This invention provides a safety status detection device and control method for an on-board intelligent energy storage system. The safety status detection device combines intelligent driving scenario recognition and planning control to optimize the safety status control of the energy storage system, avoid the generation of unpredictable vehicle status in time and space, thereby ensuring vehicle controllability and electrical safety, and alleviating the technical problems of collisions caused by the inability to obtain correct prompts or control the vehicle in real driving scenarios. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of a vehicle-mounted intelligent energy storage system safety status detection device provided in an embodiment of the present invention;

[0018] Figure 2 A flowchart of a control method for a vehicle-mounted intelligent energy storage system safety status detection device provided in an embodiment of the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention.

[0021] Example 1

[0022] Figure 1 This is a schematic diagram of a vehicle-mounted intelligent energy storage system safety status detection device according to an embodiment of the present invention. Figure 1As shown, the device includes: an information processing module 10, a data fusion module 20, a planning module 30, and a decision module 40; wherein, the information processing module 10 is connected to the target vehicle's sensor 50 and power domain controller 60, and the decision module 40 is connected to the power domain controller 60 and the target vehicle's control module 70.

[0023] Specifically, the information processing module 10 is used to acquire the target vehicle's driving environment information and vehicle driving parameter information;

[0024] The data fusion module 20 is used to identify the intelligent driving scenario information of the target vehicle by fusing driving environment information and vehicle driving parameter information;

[0025] The planning module 30 is used to plan the driving trajectory and actions of the target vehicle based on intelligent driving scenario information.

[0026] The decision module 40 is used to determine the safety status of the target vehicle based on vehicle driving parameter information and intelligent driving scenario information, and to make target control decisions based on the safety status.

[0027] The decision module 40 is also used to send control commands to the power domain controller 60 and the control module 70 based on the target control decision, so that the power domain controller 60 and the control module 70 execute the target safety action based on the control command.

[0028] Specifically, such as Figure 1 As shown, the information processing module 10 includes: an image processing module 11, a point cloud processing module 12, and a motion state processing module 13.

[0029] Specifically, the image processing module 11 and the point cloud processing module 12 are used to acquire driving environment information of the target vehicle;

[0030] The motion state processing module 13 is used to obtain the vehicle driving parameter information of the target vehicle.

[0031] Specifically, such as Figure 1 As shown, the target vehicle's sensors 50 include: a camera 51, a 4D millimeter-wave radar 52, a lidar 53, and an inertial sensor 54; wherein, the image processing module 11 is connected to the camera 51, the point cloud processing module 12 is connected to the 4D millimeter-wave radar 52 and the lidar 53, and the motion state processing module 13 is connected to the inertial sensor 54 and the power domain controller 61.

[0032] Specifically, such as Figure 1 As shown, the target vehicle's control module 70 includes: an alarm module 71, a vehicle lateral control module 72, and a vehicle longitudinal control module 73.

[0033] The alarm module 71 is used to display alarm information; the vehicle lateral control module 72 is used to control the vehicle laterally, such as controlling the vehicle's steering; and the vehicle longitudinal control module 73 is used to control the vehicle longitudinally, such as controlling the vehicle speed.

[0034] Specifically, such as Figure 1 As shown, the decision module 40 is also connected to the cloud module 80; the decision module 40 is also used to send driving environment information, vehicle driving parameter information and safety status to the cloud module 80 for storage.

[0035] Preferably, the vehicle driving parameter information also includes: energy storage system temperature information, current information, voltage information and instrument display information; target control decisions include: current limiting, overvoltage protection, high voltage cut-off and instrument display alarm.

[0036] Example 2

[0037] Figure 2 This is a flowchart of a control method for a safety status detection device for an on-board intelligent energy storage system according to an embodiment of the present invention. Figure 2 As shown, the method specifically includes the following steps:

[0038] Step S202: Obtain the driving environment information and vehicle driving parameter information of the target vehicle.

[0039] Step S204: By fusing driving environment information and vehicle driving parameter information, the intelligent driving scenario information of the target vehicle is identified.

[0040] Step S206: Based on intelligent driving scenario information, plan the driving trajectory and driving action of the target vehicle.

[0041] Step S208: Based on vehicle driving parameter information and intelligent driving scenario information, determine the safety status of the target vehicle, and determine the target control decision based on the safety status.

[0042] Step S210: Based on the target control decision, control commands are sent to the power domain controller and the control module of the target vehicle, so that the power domain controller and the control module execute the target safety action based on the control commands.

[0043] Specifically, step S202 also includes the following steps:

[0044] Step S2021: Obtain driving environment information of the target vehicle through camera, 4D millimeter-wave radar and lidar;

[0045] Step S2022: Obtain vehicle driving parameter information through inertial sensors and power domain controllers; wherein, vehicle driving parameter information includes vehicle motion parameters and power domain parameters.

[0046] In some optional embodiments provided by this invention, the intelligent driving scenario information of the target vehicle includes:

[0047] Urban driving: When driving in the city, vehicles frequently start and stop, so the requirements for batteries and energy storage systems are mainly reflected in efficient charging and discharging, heat dissipation, and safety monitoring.

[0048] High-speed driving: When driving at high speeds, the requirements of a vehicle for its battery and energy storage system are mainly reflected in continuous and stable energy output and safety.

[0049] Extreme weather and road conditions: In extreme weather (such as high temperature or severe cold) or harsh road conditions, heat dissipation, heat preservation and safety protection of batteries and energy storage systems are particularly important.

[0050] Specifically, the power domain parameters include: energy storage system temperature information, current information, voltage information, and instrument display information; target control decisions include: current limiting, overvoltage protection, high voltage cutoff, and instrument display alarms.

[0051] In this embodiment of the invention, the target control strategy further includes temperature monitoring and control. Specifically, high-precision temperature sensors are deployed at key locations within the energy storage system to monitor temperature changes in the battery and wiring harness in real time. The temperature data is processed and analyzed using algorithms to predict potential thermal runaway risks and provide early warnings. Based on different driving scenarios, the temperature monitoring threshold and response strategy are adjusted to ensure the safe and stable operation of the energy storage system even under extreme conditions.

[0052] Specifically, the current limiting control decision includes:

[0053] Based on the battery's charging and discharging characteristics and the needs of the current driving scenario, a reasonable current limit value is set; when the current exceeds the limit value, the charging and discharging current is reduced through control strategies to prevent the battery from overheating or being damaged; the current changes are monitored in real time and dynamically adjusted as needed to ensure the stability and safety of power output.

[0054] Specifically, overvoltage protection control decisions include:

[0055] During charging, the battery voltage is monitored in real time. When the voltage exceeds the preset safety threshold, the charging circuit is automatically cut off to prevent overcharging from causing battery damage or safety accidents. A reasonable voltage recovery strategy is set to restore the charging function after the voltage drops to a safe range.

[0056] Specifically, the decision to cut off high-voltage control includes:

[0057] In the event of a serious malfunction or emergency, such as a battery short circuit or thermal runaway, the high-voltage relay quickly cuts off the high-voltage circuit to prevent the accident from escalating. Multiple safety protection mechanisms are in place to ensure that cutting off the high-voltage circuit does not affect other safety functions of the vehicle (such as braking and steering).

[0058] Specifically, the instrument display alarm control decisions include:

[0059] The system displays key parameters of the energy storage system (such as voltage, current, and temperature) in real time on the vehicle's dashboard, allowing the driver to understand the vehicle's status. When an abnormality is detected, it will issue an alarm through sound, light, or other means to remind the driver to take appropriate measures.

[0060] As described above, the embodiments of the present invention provide a control method for a vehicle-mounted intelligent energy storage system safety status detection device. Based on different driving scenarios, the method integrates power domain energy storage system safety status detection and, through reasonable allocation of measures such as temperature acquisition and monitoring, current limiting, overvoltage protection, high voltage cut-off, and instrument display alarms for the energy storage system safety status, can significantly improve the controllability and safety of new energy vehicles.

[0061] This invention also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the method provided in this invention.

[0062] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0063] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0064] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0065] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0066] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A vehicle-mounted intelligent energy storage system safety state detection device, characterized in that, The information processing module, the data fusion module, the planning module, and the decision module are connected with the sensors of the target vehicle and the power domain controller, and the decision module is connected with the power domain controller and the control module of the target vehicle. The information processing module is used to acquire driving environment information and vehicle driving parameter information of the target vehicle. The data fusion module is used to identify intelligent driving scene information of the target vehicle by fusing the driving environment information and the vehicle driving parameter information. The planning module is used to plan a driving trajectory and a form action of the target vehicle based on the intelligent driving scene information. The decision module is used to determine a safety state of the target vehicle based on the vehicle driving parameter information and the intelligent driving scene information, and determine a target control decision based on the safety state. The decision module is also used to send a control instruction to the power domain controller and the control module based on the target control decision, so that the power domain controller and the control module perform a target safety action based on the control instruction. The target control decision includes temperature monitoring and control, high-precision temperature sensors are deployed at key positions inside the energy storage system to monitor the temperature changes of the battery and the wire harness in real time, the temperature data are processed and analyzed by an algorithm to predict the risk of thermal runaway and give an early warning, the threshold value and the response strategy of temperature monitoring are adjusted according to different driving scenes to ensure the safe and stable operation of the energy storage system in extreme conditions; The target control decision includes current limitation, overvoltage protection, high-voltage cut-off, and instrument display alarm. The current limitation control decision specifically includes: According to the charge-discharge characteristics of the battery and the demand of the current driving scene, a reasonable current limitation value is set; when the current exceeds the limitation value, the charge-discharge current is reduced through a control strategy to prevent the battery from overheating or damage; the current change is monitored in real time, and dynamic adjustment is made as needed to ensure the stability and safety of power output; The overvoltage protection control decision includes: During charging, the battery voltage is monitored in real time, and when the voltage exceeds the preset safety threshold, the charging circuit is automatically cut off to prevent overcharging from causing battery damage or safety accidents; a reasonable voltage recovery strategy is set to restore the charging function when the voltage drops to a safe range; The high-voltage cut-off control decision includes: In the event of a serious fault or emergency, the high-voltage circuit is quickly cut off by a high-voltage relay to prevent the accident from spreading; a multiple safety protection mechanism is set to ensure that the high-voltage circuit is cut off without affecting other safety functions of the vehicle; The instrument display alarm control decision includes: Real-time display of key parameters of the energy storage system on the vehicle instrument panel to facilitate the driver to understand the vehicle state; when an abnormal condition is detected, sound and light alarms are given to remind the driver to take appropriate measures. The information processing module includes an image processing module, a point cloud processing module, and a motion state processing module; wherein 2. The safety state detection device for a vehicle-mounted intelligent energy storage system according to claim 1, characterized in that, The image processing module and the point cloud processing module are used to acquire driving environment information of the target vehicle. ​ The motion state processing module is configured to acquire vehicle driving parameter information of the target vehicle.

3. The safety state detection device for a vehicle-mounted intelligent energy storage system according to claim 2, characterized in that, The sensors of the target vehicle include a camera, a 4D millimeter wave radar, a laser radar, and an inertial sensor; the image processing module is connected to the camera, the point cloud processing module is connected to the 4D millimeter wave radar and the laser radar, and the motion state processing module is connected to the inertial sensor and the power domain controller.

4. The safety state detection device for a vehicle-mounted intelligent energy storage system according to claim 1, characterized in that, The control module of the target vehicle includes an alarm module, a vehicle lateral control module, and a vehicle longitudinal control module.

5. The safety state detection device for a vehicle-mounted intelligent energy storage system according to claim 1, characterized in that, The decision module is also in communication connection with a cloud module; the decision module is further configured to send the driving environment information, the vehicle driving parameter information, and the safety state to the cloud module for storage.

6. The safety state detection device for a vehicle-mounted intelligent energy storage system according to claim 1, characterized in that, The vehicle driving parameter information further includes energy storage system temperature information, current information, voltage information, and instrument display information.

7. A control method of the safety state detection device of the vehicle-mounted intelligent energy storage system according to any one of claims 1-6, characterized in that, The method comprises: acquiring driving environment information and vehicle driving parameter information of a target vehicle; identifying intelligent driving scene information of the target vehicle by fusing the driving environment information and the vehicle driving parameter information; planning a driving trajectory and a form action of the target vehicle based on the intelligent driving scene information; determining a safety state of the target vehicle based on the vehicle driving parameter information and the intelligent driving scene information, and determining a target control decision based on the safety state; sending a control instruction to a power domain controller of the target vehicle and a control module of the target vehicle based on the target control decision, so that the power domain controller and the control module perform a target safety action based on the control instruction.

8. The method of claim 7, wherein, The method of acquiring driving environment information and vehicle driving parameter information of a target vehicle comprises: acquiring the driving environment information of the target vehicle by using a camera, a 4D millimeter wave radar, and a laser radar; acquiring the vehicle driving parameter information by using an inertial sensor and the power domain controller; the vehicle driving parameter information includes vehicle motion parameters and power domain parameters.

9. The method of claim 8, wherein, The power domain parameters include energy storage system temperature information, current information, voltage information, and instrument display information; The target control decision includes current limitation, overvoltage protection, high-voltage cutoff, and instrument display alarm.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions, and the computer instructions are executed by a processor to implement the method of any one of claims 7-9.

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