Battery collision processing method, device, and system, computer program and computer readable medium

Abstract

A battery collision processing method, device, and system, a computer program, and a computer readable medium, relating to the technical field of battery collision processing. The method comprises: acquiring collision signals collected by a plurality of collision sensors (120) arranged at different positions on a power battery (S101); determining collision information of the power battery on the basis of the collision signal collected by each of the collision sensors (120) (S102); uploading the collision information to a cloud, so that the cloud determines a vehicle end processing strategy for a vehicle end on the basis of the collision information (S103); and receiving and executing the vehicle end processing strategy sent by the cloud (S104). By detecting collision signals of a power battery at a vehicle end, a cloud can determine a corresponding vehicle end processing strategy on the basis of the collision position and the collision strength when the power battery experiences a collision, so that the vehicle end can timely execute the corresponding vehicle end processing strategy, to perform targeted processing on the power battery having experienced a collision, thereby minimizing the collision risk of the power battery and ensuring the safety of users using a vehicle.

Description

Battery collision processing method, device, system, computer program and computer readable medium

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on December 29, 2023, with application number 202311864249.2 and invention name “A Battery Collision Processing Method and System,” the entire contents of which are incorporated by reference in this disclosure. Technical Field

[0002] The present disclosure relates to the technical field of battery collision processing, and in particular to a battery collision processing method, device, system, computer program, and computer-readable medium. Background Art

[0003] With the rapid development of society, new energy vehicle technology has gradually matured, and the number of new energy vehicles has also increased dramatically. As the power source of new energy vehicles, the safety of battery packs has always been a focus of attention for companies and consumers. The bottom collision suffered by battery packs is also an important cause of thermal runaway of battery packs that cannot be ignored.

[0004] Related technologies typically address the risk of battery pack collisions by combining mechanical protection with software-based detection. However, this approach only issues warnings when abnormal battery parameters are detected. It's unable to promptly determine if a battery pack presents safety hazards after a collision, nor can it provide timely, targeted treatment for the battery involved in the collision. Summary of the Invention

[0005] The present disclosure provides a battery collision processing method, device, system, computer program and computer-readable medium to solve the current technical problem that it is difficult for vehicles to promptly and specifically process batteries that have collided.

[0006] In order to solve the above problems, the present disclosure adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present disclosure provides a battery collision handling method, which is applied to a vehicle. The method includes:

[0008] Acquiring collision signals collected by multiple collision sensors arranged at different positions on the power battery;

[0009] Determining collision information of the power battery based on the collision signal collected by each collision sensor; the collision information includes a collision position and a collision intensity;

[0010] Uploading the collision information to a cloud, so that the cloud determines a vehicle-side processing strategy for the vehicle-side based on the collision information;

[0011] Receive and execute the vehicle-side processing strategy sent by the cloud; wherein the vehicle-side processing strategy is a strategy for the power battery.

[0012] In one embodiment of the present disclosure, the collision sensor is an elastic wave sensor, and the collision signal is an elastic wave signal;

[0013] The step of determining the collision information of the power battery based on the collision signal collected by each of the collision sensors includes:

[0014] determining the collision position based on a position of each elastic wave sensor relative to the power battery and a collection time of an elastic wave signal collected by each elastic wave sensor;

[0015] The collision intensity is determined based on a signal peak value of the elastic wave signal collected by each of the elastic wave sensors.

[0016] In one embodiment of the present disclosure, the vehicle-side processing strategy includes a first vehicle-side processing sub-strategy; the first vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is greater than a first intensity threshold;

[0017] The step of executing the vehicle-side processing strategy sent by the cloud comprises:

[0018] When the vehicle-side processing strategy is the first vehicle-side processing sub-strategy, a first prompt message is output, where the first prompt message is used to output the collision information and instruct the driver to stop the car and wait for rescue from the after-sales service center.

[0019] In one embodiment of the present disclosure, the vehicle-side processing strategy further includes a second vehicle-side processing sub-strategy; the second vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the first intensity threshold and greater than a second intensity threshold, or when it is detected that the cumulative number of collisions of the power battery with the collision intensity less than or equal to the second intensity threshold is greater than or equal to a number threshold; wherein the second intensity threshold is less than the first intensity threshold;

[0020] The step of executing the vehicle-side processing strategy sent by the cloud further includes:

[0021] When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, a second prompt message is output, and the second prompt message is used to output the collision information and instruct the driver to go to the after-sales service end to inspect the power battery.

[0022] In one embodiment of the present disclosure, the vehicle-side processing strategy further includes a third vehicle-side processing sub-strategy; the third vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the second intensity threshold and the cumulative number of collisions is less than the number threshold;

[0023] The step of executing the vehicle-side processing strategy sent by the cloud further includes:

[0024] When the vehicle-side processing strategy is the third vehicle-side processing sub-strategy, a third prompt message is output, and the third prompt message is used to output the collision information and instruct the driver that the power battery can be used normally.

[0025] In one embodiment of the present disclosure, the method further includes:

[0026] When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, determining a target battery cell corresponding to the collision position;

[0027] Outputting the voltage information and temperature information of the target battery cell within a preset time period to a pre-trained fault prediction model to obtain a fault prediction result of the target battery cell;

[0028] When the fault prediction result indicates that the target battery cell is abnormal, a fourth prompt message is output, wherein the fourth prompt message is used to display the current voltage information and the current temperature information of the target battery cell and instruct the driver to stop the car and wait for rescue from the after-sales service center.

[0029] In a second aspect, embodiments of the present disclosure provide another battery collision handling method, which is applied in the cloud. The method includes:

[0030] Obtaining collision information of the power battery uploaded by the vehicle; the collision information is determined based on collision signals collected by multiple collision sensors installed at different positions on the power battery, and the collision information includes collision location and collision intensity;

[0031] Determining a vehicle-side processing strategy for the vehicle-side and / or an after-sales processing strategy for the after-sales side based on the collision information;

[0032] The vehicle-side processing strategy is sent to the vehicle side so that the vehicle side executes the vehicle-side processing strategy, and / or the after-sales processing strategy is sent to the after-sales end so that the after-sales end executes the after-sales processing strategy.

[0033] In one embodiment of the present disclosure, the step of determining a vehicle-side processing strategy for the vehicle and / or an after-sales processing strategy for the after-sales service based on the collision information includes:

[0034] When the collision intensity is greater than a first intensity threshold, the vehicle-side processing strategy is determined to be a first vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be a first after-sales processing sub-strategy; the first vehicle-side processing sub-strategy and the first after-sales processing sub-strategy are strategies for a situation where the vehicle needs to stop and wait for rescue by the after-sales service provider;

[0035] When the collision intensity is less than or equal to the first intensity threshold, the vehicle-side processing strategy and the after-sales processing strategy are determined based on the comparison result of the collision intensity and the second intensity threshold; wherein the second intensity threshold is less than the first intensity threshold.

[0036] In one embodiment of the present disclosure, the step of determining the vehicle-side processing strategy and the after-sales processing strategy based on the comparison result of the collision intensity and the second intensity threshold includes:

[0037] When the collision intensity is greater than the second intensity threshold, the vehicle-side processing strategy is determined to be the second vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be the second after-sales processing sub-strategy; the second vehicle-side processing sub-strategy and the second after-sales processing sub-strategy are strategies for the case where the vehicle needs to go to the after-sales service center to inspect the power battery;

[0038] When the collision intensity is less than or equal to the second intensity threshold, the vehicle-side processing strategy is determined based on the accumulated number of collisions in which the collision intensity of the power battery is less than or equal to the second intensity threshold.

[0039] In one embodiment of the present disclosure, the step of determining the vehicle-side processing strategy based on the cumulative number of collisions in which the collision intensity of the power battery is less than or equal to the second intensity threshold includes:

[0040] When the cumulative number of collisions is greater than or equal to the number threshold, determining the vehicle-side processing strategy to be the second vehicle-side processing sub-strategy, and determining the after-sales processing strategy to be the second after-sales processing sub-strategy;

[0041] When the cumulative number of collisions is less than the number threshold, the vehicle-side processing strategy is determined to be the third vehicle-side processing sub-strategy, and the third vehicle-side processing sub-strategy is a strategy for the case where the power battery can be used normally.

[0042] In a third aspect, an embodiment of the present disclosure provides a battery collision processing device, which is applied to a vehicle, and includes:

[0043] A collision signal acquisition module is used to acquire collision signals collected by multiple collision sensors installed at different positions on the power battery;

[0044] A collision information determination module, configured to determine collision information of the power battery based on the collision signal collected by each collision sensor; the collision information includes a collision position and a collision intensity;

[0045] A collision information sending module, configured to upload the collision information to a cloud, so that the cloud determines a vehicle-side processing strategy for the vehicle-side based on the collision information;

[0046] A strategy execution module is used to receive and execute the vehicle-side processing strategy sent by the cloud; wherein the vehicle-side processing strategy is a strategy for the power battery.

[0047] In one embodiment of the present disclosure, the collision sensor is an elastic wave sensor, the collision signal is an elastic wave signal, and the collision information determination module includes:

[0048] a collision position determination submodule, configured to determine the collision position based on the position of each elastic wave sensor relative to the power battery and the acquisition time of the elastic wave signal acquired by each elastic wave sensor;

[0049] The collision intensity determination submodule is used to determine the collision intensity based on the signal peak value of the elastic wave signal collected by each elastic wave sensor.

[0050] In one embodiment of the present disclosure, the vehicle-side processing strategy includes a first vehicle-side processing sub-strategy; the first vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is greater than a first intensity threshold; the strategy execution module includes:

[0051] The first strategy execution sub-module is used to output a first prompt message when the vehicle-side processing strategy is the first vehicle-side processing sub-strategy. The first prompt message is used to output the collision information and instruct the driver to stop and wait for rescue from the after-sales service department.

[0052] In one embodiment of the present disclosure, the vehicle-side processing strategy further includes a second vehicle-side processing sub-strategy; the second vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the first intensity threshold and greater than a second intensity threshold, or when it is detected that the cumulative number of collisions of the power battery with the collision intensity less than or equal to the second intensity threshold is greater than or equal to a number threshold; wherein the second intensity threshold is less than the first intensity threshold; the strategy execution module further includes:

[0053] The second strategy execution sub-module is used to output a second prompt message when the vehicle-side processing strategy is the second vehicle-side processing sub-strategy. The second prompt message is used to output the collision information and instruct the driver to go to the after-sales service end to inspect the power battery.

[0054] In one embodiment of the present disclosure, the vehicle-side processing strategy further includes a third vehicle-side processing sub-strategy; the third vehicle-side processing sub-strategy is determined by the cloud when it detects that the collision intensity is less than or equal to the second intensity threshold and the cumulative number of collisions is less than the number threshold; the strategy execution module further includes:

[0055] The third strategy execution submodule is used to output a third prompt message when the vehicle-side processing strategy is the third vehicle-side processing sub-strategy. The third prompt message is used to output the collision information and instruct the driver that the power battery can be used normally.

[0056] In one embodiment of the present disclosure, the battery collision processing device further includes:

[0057] a target cell determination module, configured to determine a target cell corresponding to the collision position when the vehicle-side processing strategy is the second vehicle-side processing sub-strategy;

[0058] A fault prediction module is used to output the voltage information and temperature information of the target battery cell within a preset time period to a pre-trained fault prediction model to obtain a fault prediction result of the target battery cell;

[0059] The abnormal prompt module is used to output a fourth prompt information when the fault prediction result indicates that the target battery cell has an abnormality. The fourth prompt information is used to display the current voltage information and current temperature information of the target battery cell and instruct the driver to stop the car and wait for rescue from the after-sales service center.

[0060] In a fourth aspect, an embodiment of the present disclosure provides another battery collision processing device, which is used in the cloud and includes:

[0061] A collision information acquisition module is used to acquire collision information of the power battery uploaded by the vehicle; the collision information is determined based on collision signals collected by multiple collision sensors installed at different positions on the power battery, and the collision information includes collision location and collision intensity;

[0062] a strategy determination module, configured to determine a vehicle-side processing strategy for the vehicle-side and / or an after-sales processing strategy for the after-sales end based on the collision information;

[0063] A strategy sending module is used to send the vehicle-side processing strategy to the vehicle side so that the vehicle side executes the vehicle-side processing strategy, and / or to send the after-sales processing strategy to the after-sales side so that the after-sales side executes the after-sales processing strategy.

[0064] In one embodiment of the present disclosure, the policy determination module includes:

[0065] A first strategy determination submodule is configured to, when the collision intensity is greater than a first intensity threshold, determine the vehicle-side processing strategy to be a first vehicle-side processing sub-strategy, and determine the after-sales processing strategy to be a first after-sales processing sub-strategy; the first vehicle-side processing sub-strategy and the first after-sales processing sub-strategy are strategies for a situation where the vehicle needs to stop and wait for assistance from the after-sales service provider;

[0066] The second strategy determination submodule is used to determine the vehicle-side processing strategy and the after-sales processing strategy based on the comparison result of the collision intensity and the second intensity threshold when the collision intensity is less than or equal to the first intensity threshold; wherein the second intensity threshold is less than the first intensity threshold.

[0067] In one embodiment of the present disclosure, the second strategy determination submodule includes:

[0068] a first strategy determination unit, configured to, when the collision intensity is greater than the second intensity threshold, determine the vehicle-side processing strategy to be a second vehicle-side processing sub-strategy, and determine the after-sales processing strategy to be a second after-sales processing sub-strategy; the second vehicle-side processing sub-strategy and the second after-sales processing sub-strategy being strategies for a situation where the vehicle needs to go to the after-sales service center to inspect and repair the power battery;

[0069] The second strategy determination unit is used to determine the vehicle-side processing strategy based on the cumulative number of collisions in which the collision intensity of the power battery is less than or equal to the second intensity threshold when the collision intensity is less than or equal to the second intensity threshold.

[0070] In one embodiment of the present disclosure, the second strategy determination unit includes:

[0071] a first strategy determination subunit, configured to, when the cumulative number of collisions is greater than or equal to a number threshold, determine that the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, and determine that the after-sales processing strategy is the second after-sales processing sub-strategy;

[0072] The second strategy determination subunit is used to determine that the vehicle-side processing strategy is a third vehicle-side processing sub-strategy when the cumulative number of collisions is less than the number threshold. The third vehicle-side processing sub-strategy is a strategy for the case where the power battery can be used normally.

[0073] In a fifth aspect, an embodiment of the present disclosure provides a battery collision processing system, which includes a vehicle side, a cloud side, and a sales side, wherein:

[0074] The vehicle end is used to obtain collision signals collected by multiple collision sensors arranged at different positions on the power battery, and determine the collision information of the power battery based on the collision signal collected by each collision sensor, wherein the collision information includes the collision position and the collision intensity;

[0075] The vehicle end is further used to upload the collision information to the cloud;

[0076] The cloud is used to receive the collision information and determine a vehicle-side processing strategy for the vehicle-side and / or an after-sales processing strategy for the after-sales end based on the collision information;

[0077] The cloud is also used to send the vehicle-side processing strategy to the vehicle side so that the vehicle side executes the vehicle-side processing strategy, and / or send the after-sales processing strategy to the after-sales backend so that the after-sales backend executes the after-sales processing strategy.

[0078] In a sixth aspect, an embodiment of the present disclosure provides a computer program, comprising a computer-readable code, which, when executed on a computing and processing device, causes the computing and processing device to execute the battery collision processing method described above.

[0079] In a seventh aspect, an embodiment of the present disclosure provides a computer-readable medium in which the above-mentioned computer program is stored.

[0080] Compared with the prior art, the present disclosure has the following advantages:

[0081] The disclosed embodiment provides a battery collision processing method. By acquiring collision signals collected by multiple collision sensors installed at different positions on the power battery, the method can determine the collision information of the power battery based on the collision signal collected by each collision sensor, and upload the collision information to the cloud, so that the cloud can determine the vehicle-side processing strategy for the vehicle-side based on the collision information; and then receive and execute the vehicle-side processing strategy sent by the cloud. The disclosed embodiment detects the collision signal of the power battery on the vehicle side, and can determine the corresponding vehicle-side processing strategy on the cloud side based on the collision position and collision intensity when the power battery is hit. This allows the vehicle-side to promptly execute the corresponding vehicle-side processing strategy for potential safety hazards of the power battery, achieve targeted processing of the power battery that has collided, and thus minimize the collision risk of the power battery, effectively ensuring the safety of the user's vehicle.

[0082] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present disclosure more obvious and easy to understand, the specific implementation methods of the present disclosure are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0084] FIG1 is a schematic diagram of the steps of a battery collision treatment method according to an embodiment of the present application;

[0085] FIG2 is a schematic diagram of the installation position of a collision sensor in an embodiment of the present application;

[0086] FIG3 is a schematic diagram of another installation position of a collision sensor in an embodiment of the present application;

[0087] FIG4 is a schematic diagram of another installation position of a collision sensor in an embodiment of the present application;

[0088] FIG5 is a schematic diagram of the steps of another battery collision processing method according to an embodiment of the present application;

[0089] FIG6 is a schematic diagram of functional modules of a battery collision processing device according to an embodiment of the present application;

[0090] FIG7 is a schematic diagram of the functional modules of another battery collision processing device according to an embodiment of the present application;

[0091] FIG8 is a schematic diagram of a battery collision processing system according to an embodiment of the present application;

[0092] FIG9 schematically shows a block diagram of a computing processing device for executing the method according to the present disclosure;

[0093] FIG10 schematically shows a storage unit for holding or carrying program codes for implementing the method according to the present disclosure. Specific embodiments

[0094] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0095] It should be noted that in order to increase the power of the battery pack and improve the vehicle's range, current new energy vehicles set the physical size of the battery pack as larger and larger as possible, so that the battery pack has to be placed at the bottom of the vehicle, which makes the battery pack vulnerable to bumps from the bottom of the car during daily driving.

[0096] The safety of battery packs has always been a focus of attention for companies and consumers. Currently, new energy vehicles on the market can only issue corresponding prompt information when the voltage, temperature, etc. of the battery pack are abnormal when the bottom is subjected to collision, impact, etc., and cannot help the driver to judge whether the battery pack is damaged and whether the vehicle can still operate safely in time. After the battery pack is damaged, the driver and passengers cannot be informed in advance of the possible safety risks of the power battery, which may lead to serious consequences. In particular, when the battery pack suffers thermal runaway, it is very easy to cause spontaneous combustion and fire accidents in a short period of time, causing unpredictable casualties and property losses.

[0097] In response to the current technical problem that it is difficult for vehicles to carry out targeted treatment of batteries that have collided in a timely manner, this application aims to provide a battery collision treatment method, which monitors the collision situation on the vehicle side in real time through the cloud, and can send the corresponding vehicle-side treatment strategy to the vehicle side based on the collision position and collision intensity when the power battery is hit, so that the vehicle side can execute the corresponding vehicle-side treatment strategy in a timely manner, carry out targeted treatment of the power battery that has collided, thereby minimizing the collision risk of the power battery and ensuring the safety of users' vehicles.

[0098] 1 , a battery collision handling method of the present application is shown, which is applied to a vehicle. The method may include the following steps:

[0099] S101: Acquire collision signals collected by multiple collision sensors arranged at different positions on the power battery.

[0100] It should be noted that the execution subject of this embodiment can be the vehicle side, specifically a computing service device with data processing, network communication, and program execution functions in the vehicle side, or an electronic device with the above functions, such as a driving computer or onboard computer. For example, an ECU (Electronic Control Unit), a VCU (Vehicle Control Unit), a BMS (Battery Management System), etc. This embodiment will be described using the BMS as the execution subject. It should be noted that this embodiment does not impose specific restrictions on the vehicle's execution subject.

[0101] In this embodiment, the BMS is connected to a plurality of collision sensors to obtain collision signals collected by the plurality of collision sensors when the power battery is subjected to a collision.

[0102] Referring to Figure 2, a schematic diagram of the installation locations of the collision sensors in this application is shown. Multiple collision sensors 120 are evenly arranged between the bottom plate 110 of the battery pack 100 and the vehicle's underbody panel (not shown), with the battery pack 100 positioned above the vehicle's underbody panel. In other words, if there is sufficient clearance between the bottom plate 110 and the underbody panel, multiple collision sensors 120 can be positioned between them. This allows the collision sensors 120 to maximize their ability to sense collision signals from the underbody panel.

[0103] Referring to Figure 3, another schematic diagram of the collision sensor installation position in this application is shown. Multiple collision sensors 120 are evenly arranged above the bottom plate 110 of the battery pack 100. In other words, if the installation gap between the bottom plate 110 and the bottom guard plate is insufficient to accommodate the collision sensors 120, the collision sensors 120 can be installed in the space above the bottom plate 110 of the battery pack 100.

[0104] Specifically, referring to Figure 4, a schematic diagram of another installation position of the collision sensor in the present application is shown. The battery pack 100 also includes a cold plate 130, an upper cover plate 150, and a plurality of battery cells 140. The cold plate 130 is disposed above the base plate 110, and the plurality of battery cells 140 are disposed between the cold plate 130 and the upper cover plate 150. The plurality of collision sensors 120 can be evenly arranged in the gap between the cold plate 130 and the base plate 110. In this way, the collision sensor 120 can collect as many collision signals as possible transmitted through the bottom guard plate and the base plate 110.

[0105] In this embodiment, the plurality of collision sensors 120 may be two or more, and the plurality of collision sensors 120 may be arranged in a rectangular array below the plurality of cells of the power battery. For example, when the power battery includes two or more cells (n), one or more collision sensors 120 may be arranged directly below each of the n cells, and each cell has associated position information with the one or more collision sensors 120 below it.

[0106] It should be noted that the collision sensor 120 can be an acceleration sensor, velocity sensor, strain sensor, etc., and the types of collision sensors 120 at various locations can be the same or different. The collision sensor 120 should be placed as close to the bottom guard plate as possible and away from the side of the battery cell 140. At the same time, a certain installation gap should be ensured after the collision sensor 120 is installed to prevent the collision sensor 120 from rubbing or colliding with other components during collision and vibration, thereby posing a safety hazard. The installation of the collision sensor 120 should be firm and reliable. Specifically, it can be installed by one or more methods including bonding, clamping, and fastener connection, depending on the specific structure of the installation location.

[0107] S102: Determine collision information of the power battery based on the collision signal collected by each collision sensor.

[0108] In this embodiment, since the timing and magnitude of the collision signal collected by each collision sensor are different after a vehicle collision, the BMS can determine the collision information of the power battery by analyzing and calculating the collision signal collected by each collision sensor. The collision information can specifically include the collision position and the collision intensity at the collision position.

[0109] S103: Upload the collision information to the cloud, so that the cloud can determine the vehicle-side processing strategy based on the collision information. In this embodiment, after determining the collision information of the power battery, the BMS can send the collision information to the VCU according to a preset first transmission cycle. The VCU then packages the data into a data packet to be uploaded and sends it to the T-BOX (vehicle networking system) according to a second transmission cycle. Finally, the data packet to be uploaded is sent to the cloud via the T-BOX.

[0110] It should be noted that the second transmission cycle can be greater than or equal to the first transmission cycle. For example, if the second transmission cycle is the same as the first transmission cycle, collision information sent by the BMS can be uploaded to the cloud in real time, and the transmission frequency will be relatively high. If the second transmission cycle is greater than or equal to the first transmission cycle, multiple collision information can be uploaded to the cloud simultaneously, reducing the frequency of data transmission. Therefore, the first and second transmission cycles can be set based on a comprehensive consideration of hardware conditions, network environment, collision detection accuracy requirements, and other requirements.

[0111] In this embodiment, after receiving collision information uploaded by the vehicle, the cloud analyzes the collision location and intensity of the power battery, matches it with a corresponding vehicle-side processing strategy, and transmits the vehicle-side processing strategy to the vehicle. Specifically, the cloud first determines the corresponding intensity threshold based on the collision location; then compares the collision intensity with the intensity threshold and determines the vehicle-side processing strategy based on the comparison result.

[0112] In this embodiment, considering that the power battery may need to be inspected or rescued by the after-sales service after a collision, in order to help the user to inspect and process the power battery as soon as possible, the cloud can determine the vehicle-side processing strategy for the vehicle-side based on the collision information. At the same time, it can also determine the after-sales processing strategy for the after-sales service based on the collision information, so as to inform the after-sales service near the vehicle-side to perform inspection or rescue work as soon as possible, thereby effectively improving the user's after-sales experience.

[0113] S104: Receive and execute the vehicle-side processing strategy sent by the cloud.

[0114] It should be noted that the vehicle-side processing strategy is a strategy for the power battery. Specifically, this vehicle-side processing strategy is used to inform the driver of the current risk status of the power battery, indicating whether the power battery is damaged and whether the vehicle can continue to operate safely.

[0115] In one example, after a vehicle has been involved in a relatively serious collision, the BMS detects that the voltage, temperature and other information of the power battery are normal. At this time, the BMS will not generate an alarm message. After the BMS uploads the collision information to the cloud, it detects that the collision intensity of the vehicle at the collision position exceeds the corresponding intensity threshold. At this time, although the power battery has not temporarily detected abnormal parameters, if the power battery continues to be used, there will be a major safety hazard. Then the cloud will send the vehicle-side processing strategy for indicating power battery abnormalities to the vehicle side, so that the vehicle side will output corresponding prompt information through the vehicle instrument to inform the driver of the power battery abnormality and instruct the driver to stop and wait for rescue from the after-sales service.

[0116] The embodiment of the present application monitors the collision situation on the vehicle side in real time through the cloud, and can send the corresponding vehicle-side processing strategy to the vehicle side based on the collision position and collision intensity when the power battery is hit, so that the vehicle side can execute the corresponding vehicle-side processing strategy in a timely manner, and perform targeted processing on the power battery that has collided, thereby minimizing the collision risk of the power battery and ensuring the safety of the user's vehicle.

[0117] In a feasible embodiment, the collision sensor is an elastic wave sensor, and the collision signal is an elastic wave signal; S102 may specifically include the following sub-steps:

[0118] S102 - 1 : Determine a collision position based on the position of each elastic wave sensor relative to the power battery and the acquisition time of the elastic wave signal acquired by each elastic wave sensor.

[0119] It should be noted that elastic waves are a type of stress wave, representing the transmission of stress and strain caused by disturbances or external forces within an elastic medium. Elastic forces interact between particles within an elastic medium. When a particle in a material deviates from its equilibrium position, i.e., experiences strain, it vibrates under the action of the elastic force, simultaneously causing strain and vibration in surrounding particles. The propagation of this vibration within the elastic medium is called an "elastic wave." Elastic waves exhibit characteristics in both the time and frequency domains. After a disturbance occurs, energy can continue to oscillate for a period of time until it is dissipated.

[0120] In this embodiment, after the bottom of the vehicle is hit, the elastic wave sensor can collect the elastic wave signal generated on the bottom guard plate or the bottom plate, and transmit the elastic wave signal to the BMS for analysis to analyze the magnitude and position of the force applied to the power battery.

[0121] In a specific implementation, since the time and size of the elastic wave signal collected by each collision sensor are different after the power battery collides, the BMS can locate the coordinate information of the target collision point relative to each elastic wave sensor based on the collection time of the elastic wave signal collected by each elastic wave sensor and the preset elastic wave propagation speed in the bottom guard plate or bottom plate, and combine it with the position information of each elastic wave sensor relative to the power battery, which can also be coordinate information, and then based on the coordinate information of the target collision point relative to each elastic wave sensor and the coordinate information of each elastic wave sensor equivalent to the power battery, the collision position of the power battery can be located.

[0122] S102 - 2 : Determine the collision intensity based on the signal peak value of the elastic wave signal collected by each elastic wave sensor.

[0123] In this embodiment, after a power battery collision, the target collision point will be at different distances from each elastic wave sensor, resulting in different degrees of elastic wave signal attenuation, specifically reflected in differences in signal peaks. Therefore, the collision intensity can be determined by comprehensively analyzing the peak values ​​of the elastic wave signals collected by each elastic wave sensor. This collision intensity represents the amount of collision energy transmitted to the power battery. A greater collision intensity indicates a more intense collision with the power battery, and accordingly, greater collision energy is transmitted to the power battery.

[0124] In this embodiment, compared with traditional collision sensors such as acceleration sensors, by using elastic wave sensors to collect elastic wave signals, the BMS can accurately identify the collision position and collision intensity, thereby effectively improving the detection accuracy and avoiding misjudgment.

[0125] In one feasible embodiment, the vehicle-side processing strategy includes a first vehicle-side processing sub-strategy; the first vehicle-side processing sub-strategy is determined by the cloud when the collision intensity is detected to be greater than a first intensity threshold; S104 may specifically include the following sub-steps:

[0126] S104-A1: When the vehicle-side processing strategy is the first vehicle-side processing sub-strategy, output the first prompt information.

[0127] It should be noted that the first intensity threshold represents the maximum impact intensity that the power battery can withstand at the predetermined impact location. In other words, when the impact intensity exceeds the first intensity threshold, the power battery is considered to have an abnormality. The first intensity threshold can be determined through testing or simulation.

[0128] In this embodiment, the first vehicle-side processing sub-strategy is a strategy for a situation where the power battery cannot be used and the vehicle needs to stop and wait for rescue by the after-sales service.

[0129] In this embodiment, after receiving the first vehicle-side processing sub-strategy issued by the cloud, the BMS will still output a first prompt message even if no abnormal data from the power battery is detected. This first prompt message is used to output collision information and instruct the driver to stop and wait for assistance from the after-sales service center.

[0130] In a specific implementation, the BMS sends a first prompt request to the VCU, so that the VCU responds to the first prompt request and highlights the preset first collision prompt icon on the central control screen. For example, the first collision prompt icon can be displayed in a flashing red icon; at the same time, the collision information is output through voice and / or text, and the driver is instructed to stop the car and wait for rescue from the after-sales service center.

[0131] In this embodiment, after detecting a serious collision with the power battery, the cloud can promptly remind the driver to get out of the vehicle and wait for rescue before the power battery becomes abnormal, thereby minimizing the risk of power battery loss of control and ensuring the safety of users' personnel and property to the greatest extent.

[0132] In one feasible embodiment, the vehicle-side processing strategy further includes a second vehicle-side processing sub-strategy; the second vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the first intensity threshold and greater than the second intensity threshold, or when it is detected that the cumulative number of collisions of the power battery is less than or equal to the second intensity threshold and greater than or equal to the number threshold; S104 may further specifically include the following sub-steps:

[0133] S104-A2: When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, output the second prompt information.

[0134] It should be noted that the second intensity threshold is lower than the first intensity threshold. This second intensity threshold represents the maximum impact intensity at which the power battery can operate normally in a single collision. In other words, when the impact intensity is less than or equal to the second intensity threshold, the power battery is considered normal; when the impact intensity is greater than the second intensity threshold, the power battery is considered usable but requires maintenance. The second intensity threshold can be determined through testing or simulation.

[0135] In this embodiment, even if the vehicle's collision intensity is relatively low, long-term minor collisions may still cause cumulative damage to the power battery. Therefore, the cloud also counts the cumulative number of collisions with an intensity less than or equal to the second intensity threshold. Furthermore, if the cumulative number of collisions is greater than or equal to the number threshold, the power battery is still considered to require maintenance.

[0136] In this embodiment, the second vehicle-side processing sub-strategy is a strategy for when the vehicle needs to go to the after-sales service center to inspect and repair the power battery.

[0137] In this embodiment, after receiving the second vehicle-side processing sub-strategy sent from the cloud, the BMS will output a second prompt message. The second prompt message is used to output collision information and instruct the driver to go to the after-sales service center to inspect the power battery.

[0138] In a specific implementation, the BMS sends the second prompt request to the VCU, so that the VCU responds to the second prompt request and highlights the preset second collision prompt icon on the central control screen. For example, the second collision prompt icon can be displayed in a flashing yellow icon; at the same time, the collision information is output through voice and / or text, and the driver is instructed to go to the after-sales service center to inspect the power battery.

[0139] In this embodiment, after the cloud detects a major collision or multiple minor collisions of the power battery, it can send the location information of the sales post closest to the vehicle side to the vehicle side while issuing the second vehicle-side processing sub-strategy, so that the driver can drive to the nearby sales post in time to perform power battery maintenance, thereby ensuring the safety of the power battery and improving the service life of the power battery.

[0140] In one feasible embodiment, the vehicle-side processing strategy further includes a third vehicle-side processing sub-strategy; the third vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the second intensity threshold and the cumulative number of collisions is less than the number threshold; S104 may further include the following sub-steps:

[0141] S104-A3: When the vehicle-side processing strategy is the third vehicle-side processing sub-strategy, output the third prompt information.

[0142] In this embodiment, when the cloud detects that the vehicle sends a minor collision or the number of minor collisions does not reach the threshold, it will issue a third vehicle-side processing sub-strategy. The third vehicle-side processing sub-strategy is a strategy for the normal use of the power battery.

[0143] In a specific implementation, the BMS sends the third prompt request to the VCU, so that the VCU responds to the third prompt request and highlights the preset third impact prompt icon on the central control screen. For example, the third impact prompt icon can be displayed in a flashing green way; at the same time, the collision information is output through voice and / or text, and the driver is informed that the power battery can be used normally.

[0144] In this embodiment, the cloud sends a third vehicle-side processing sub-strategy, enabling the BMS to provide timely feedback on the vehicle's collision situation and provide driving suggestions to the driver. The driver can obtain the collision status of the power battery in a timely manner, improving the driver's safety protection perception experience and making the vehicle more humane and intelligent.

[0145] In a feasible embodiment, the battery collision processing method may further include the following steps:

[0146] S105: When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, determine the target battery cell corresponding to the collision position.

[0147] In this embodiment, when the BMS receives the vehicle-side processing strategy as the second vehicle-side processing sub-strategy, the power battery may be damaged to a certain extent. Therefore, in order to avoid the driver's driving safety being affected by abnormalities in the power battery while driving the vehicle to the after-sales service end, the BMS will strengthen the monitoring of the target battery cells.

[0148] In a specific implementation, since the arrangement positions of the battery cells in the battery pack are fixed, based on the determined collision position, it is possible to find the target battery cell closest to the collision position among the multiple battery cells in the battery pack.

[0149] S106: Outputting the voltage information and temperature information of the target battery cell within a preset time period to a pre-trained fault prediction model to obtain a fault prediction result of the target battery cell.

[0150] In this embodiment, the preset time period can be set to a preset period before the current time, for example, within five minutes before the current time. In this way, by outputting the voltage and temperature information within the last five minutes to the fault prediction model in real time, a fault prediction result for a preset time in the future can be obtained.

[0151] In this embodiment, training samples for the fault prediction model can be generated based on test data obtained from crash tests of power batteries at varying impact intensities and locations. Specifically, abnormal data in the test data indicating battery anomalies can be identified as positive samples, while normal battery anomalies can be identified as negative samples. A pre-set initial neural network model is then trained using these positive and negative samples to generate the fault prediction model.

[0152] S107: When the fault prediction result indicates that the target battery cell is abnormal, output fourth prompt information.

[0153] In this embodiment, if the fault prediction result output by the fault prediction model indicates that the target battery cell is normal, the second prompt message is output. If the fault prediction result indicates that the target battery cell is abnormal, it indicates that the power battery is about to fail, and a fourth prompt message is output. This fourth prompt message is used to display the current voltage and temperature information of the target battery cell and instruct the driver to stop the car and wait for assistance from the after-sales service center.

[0154] In a specific implementation, the BMS sends the fourth prompt request to the VCU, which responds by displaying the current voltage and temperature of the target cell via voice and / or text, and instructing the driver to stop the car and await assistance from the after-sales service. By displaying the current voltage and temperature of the target cell, the driver can intuitively understand the current operating status of the target cell, allowing them to take timely and targeted action if abnormal parameters in the target cell occur.

[0155] In this embodiment, the BMS sends the fault prediction result to the cloud while outputting the fourth prompt information, so that the cloud notifies the sales office closest to the vehicle to provide rescue to the vehicle.

[0156] In this embodiment, by using the fault prediction model on the vehicle side to monitor the fault conditions of the target battery cells in real time, the driver can be warned of possible faults of the power battery in a timely manner while driving the vehicle, thereby effectively ensuring the safety of the user's personnel and property.

[0157] In a second aspect, referring to FIG. 5 , an embodiment of the present application provides another battery collision processing method, which is applied in the cloud. The method may specifically include the following steps:

[0158] S201: Acquire collision information of the power battery uploaded by the vehicle.

[0159] It should be noted that the execution entity of this embodiment is the cloud, which is a remote device capable of communicating with the vehicle and / or processing data. The cloud can be a central server, a cluster server, or a distributed server, or a cloud server that implements cloud computing and / or cloud storage. This embodiment does not impose specific restrictions on the execution entity.

[0160] In this embodiment, the cloud can communicate with multiple vehicle terminals and build a corresponding storage database for each vehicle terminal. After the cloud obtains the collision information uploaded by multiple vehicle terminals in real time, it can analyze the collision information of the power battery of each vehicle terminal in a targeted manner, and then determine the vehicle-side processing strategy corresponding to each vehicle terminal, and send each vehicle-side processing strategy to the corresponding vehicle terminal, thereby realizing data analysis and collision processing for multiple vehicle terminals.

[0161] In this embodiment, the collision information is determined based on collision signals collected by a plurality of collision sensors disposed at different positions on the power battery. The collision information includes the collision position and the collision intensity.

[0162] S202: Based on the collision information, determine a vehicle-side processing strategy for the vehicle side and / or an after-sales processing strategy for the after-sales side.

[0163] In this embodiment, after receiving the collision information uploaded by the vehicle, the cloud will analyze the collision position and collision intensity of the power battery, and then match the corresponding vehicle-side processing strategy and / or after-sales processing strategy for the back-end.

[0164] In the specific implementation, the cloud can first determine the corresponding intensity threshold based on the collision location; then compare the collision intensity with the intensity threshold, and determine the vehicle-side processing strategy based on the comparison results.

[0165] It should be noted that, given that different power batteries at different locations may be able to withstand different collision intensities, different intensity thresholds can be set for different collision locations. These intensity thresholds can be determined based on testing or simulation. In this embodiment, the cloud determines both the vehicle-side processing strategy and the after-sales processing strategy for the back-end. This allows the back-end to be promptly dispatched to perform power battery maintenance or rescue work when the vehicle requires assistance.

[0166] S203: Send the vehicle-side processing strategy to the vehicle side so that the vehicle side executes the vehicle-side processing strategy, and / or send the after-sales processing strategy to the after-sales backend so that the after-sales backend executes the after-sales processing strategy.

[0167] In this embodiment, by obtaining the collision signal uploaded by any vehicle end, the corresponding vehicle-end processing strategy and after-sales processing strategy can be matched for it in a targeted manner. On the one hand, the vehicle end can execute the corresponding vehicle-end processing strategy in a timely manner, carry out targeted processing on the power battery that has collided, minimize the collision risk of the power battery, and ensure the safety of the user's car; on the other hand, the after-sales end can execute the corresponding after-sales processing strategy in a timely manner, carry out targeted processing on the vehicle end that has collided in a timely manner, and carry out corresponding maintenance work on the power battery in a timely manner, so as to avoid the power battery from losing control as much as possible, improve after-sales efficiency and the user's after-sales experience.

[0168] In a feasible implementation, S202 may specifically include the following sub-steps:

[0169] S202-1: When the collision intensity is greater than a first intensity threshold, the vehicle-side processing strategy is determined to be a first vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be a first after-sales processing sub-strategy.

[0170] It should be noted that the first vehicle-side processing sub-strategy and the first after-sales processing sub-strategy are strategies for situations where the vehicle needs to stop and wait for rescue by the after-sales service; the first intensity threshold represents the maximum collision intensity that the preset power battery can withstand at the collision position, that is, when the collision intensity is greater than the first intensity threshold, it is considered that the power battery is abnormal.

[0171] In the specific implementation, after the cloud determines that the after-sales processing strategy is the first after-sales processing sub-strategy, while issuing the first after-sales processing sub-strategy, it will also send the collision information and the location information of the vehicle end to the back-sales end, so that the back-sales end can carry out rescue work in time.

[0172] In the specific implementation, when the vehicle side receives the vehicle-side processing strategy as the first vehicle-side processing sub-strategy, it will output the first prompt information, which is used to output the collision information and instruct the driver to stop and wait for rescue from the after-sales service; when the after-sales service receives the after-sales processing strategy as the first after-sales processing sub-strategy, it will output the first after-sales information, which is used to output the collision information and instruct the after-sales personnel to go to the location of the vehicle side for rescue.

[0173] S202-2: When the collision intensity is less than or equal to the first intensity threshold, determine the vehicle-side processing strategy and the after-sales processing strategy based on the comparison result of the collision intensity and the second intensity threshold.

[0174] It should be noted that the second intensity threshold is smaller than the first intensity threshold, and the second intensity threshold represents the maximum collision intensity at which the power battery can operate normally in a single collision situation.

[0175] In this embodiment, by comparing the collision intensity with the second intensity threshold, it can be further determined whether the power battery needs to be repaired.

[0176] In a feasible implementation, S202-2 may specifically include the following sub-steps:

[0177] S202-2-1: When the collision intensity is greater than the second intensity threshold, the vehicle-side processing strategy is determined to be the second vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be the second after-sales processing sub-strategy.

[0178] In this embodiment, when the collision intensity is less than or equal to the second intensity threshold, the power battery is considered normal; when the collision intensity is greater than the second intensity threshold, the power battery is considered to be able to continue to be used but needs to be repaired, and then the vehicle-side processing strategy is determined to be the second vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be the second after-sales processing sub-strategy.

[0179] It should be noted that the second vehicle-side processing sub-strategy and the second after-sales processing sub-strategy are strategies for when the vehicle side needs to go to the after-sales service to inspect and repair the power battery.

[0180] In the specific implementation, after the cloud determines that the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, it will send the location information of the after-sales service center to the vehicle side at the same time as issuing the second vehicle-side processing sub-strategy, so that the vehicle side can go to the after-sales service center to inspect and repair the power battery.

[0181] In this embodiment, when the vehicle side receives the vehicle-side processing strategy as the second vehicle-side processing sub-strategy, it will output a second prompt information, which is used to output collision information and instruct the driver to go to the after-sales service end to inspect the power battery; when the after-sales service end receives the after-sales processing strategy as the second after-sales processing sub-strategy, it will output a second after-sales information, which is used to output collision information and instruct the after-sales personnel to prepare inspection resources to inspect the power battery on the vehicle side.

[0182] S202-2-2: When the collision intensity is less than or equal to the second intensity threshold, determine the vehicle-side processing strategy based on the cumulative number of collisions in which the collision intensity of the power battery is less than or equal to the second intensity threshold.

[0183] In this embodiment, even if the vehicle's collision intensity is relatively low, long-term minor collisions may still cause cumulative damage to the power battery. Therefore, if the cloud detects that the collision intensity of the power battery is less than or equal to the second intensity threshold, it will count the cumulative number of collisions with a collision intensity less than or equal to the second intensity threshold. Specifically, each time the cloud detects a collision intensity less than or equal to the second intensity threshold, it increments the cumulative number of collisions by one to obtain the latest cumulative number of collisions.

[0184] In a specific implementation, if the cloud detects that the cumulative number of collisions is greater than or equal to the number threshold, the vehicle-side processing strategy is determined to be the second vehicle-side processing sub-strategy, and the after-sales processing strategy is determined to be the second after-sales processing sub-strategy. If the cloud detects that the cumulative number of collisions is less than the number threshold, the vehicle-side processing strategy is determined to be the third vehicle-side processing sub-strategy. The third vehicle-side processing sub-strategy is designed for the case where the power battery can be used normally.

[0185] In this embodiment, when the vehicle side receives the vehicle-side processing strategy that is the third vehicle-side processing sub-strategy, it will output a third prompt message, which is used to output collision information and instruct the driver to go to the after-sales service end to inspect and repair the power battery; when the after-sales service end receives the after-sales processing strategy that is the second after-sales processing sub-strategy, it will output a second after-sales information, which is used to output collision information and instruct the driver that the power battery can be used normally; since the power battery does not need to be inspected at this time, there is no need to send the corresponding after-sales processing strategy to the after-sales service end, and the collision information only needs to be stored in the cloud.

[0186] In a third aspect, referring to FIG6 , an embodiment of the present application provides a battery collision processing device 300 , which is applied to a vehicle. The battery collision processing device 300 includes:

[0187] A collision signal acquisition module 301 is used to acquire collision signals collected by multiple collision sensors installed at different positions on the power battery;

[0188] A collision information determination module 302 is configured to determine collision information of the power battery based on the collision signal collected by each collision sensor; the collision information includes collision position and collision intensity;

[0189] The collision information sending module 303 is used to upload the collision information to the cloud so that the cloud can determine a vehicle-side processing strategy based on the collision information;

[0190] The strategy execution module 304 is used to receive and execute the vehicle-side processing strategy sent by the cloud; wherein the vehicle-side processing strategy is a strategy for the power battery.

[0191] In one embodiment of the present application, the collision sensor is an elastic wave sensor, and the collision signal is an elastic wave signal; the collision information determination module 302 includes:

[0192] a collision position determination submodule, configured to determine a collision position based on a position of each elastic wave sensor relative to the power battery and a collection time of an elastic wave signal collected by each elastic wave sensor;

[0193] The collision intensity determination submodule is used to determine the collision intensity based on the signal peak value of the elastic wave signal collected by each elastic wave sensor.

[0194] In one embodiment of the present application, the vehicle-side processing strategy includes a first vehicle-side processing sub-strategy; the first vehicle-side processing sub-strategy is determined by the cloud when the collision intensity is detected to be greater than a first intensity threshold; the strategy execution module 304 includes:

[0195] The first strategy execution submodule is used to output a first prompt message when the vehicle-side processing strategy is the first vehicle-side processing sub-strategy. The first prompt message is used to output collision information and instruct the driver to stop and wait for rescue from the after-sales service.

[0196] In one embodiment of the present application, the vehicle-side processing strategy further includes a second vehicle-side processing sub-strategy; the second vehicle-side processing sub-strategy is determined by the cloud when it is detected that the collision intensity is less than or equal to the first intensity threshold and greater than the second intensity threshold, or when it is detected that the cumulative number of collisions of the power battery is less than or equal to the second intensity threshold and greater than or equal to the number threshold; the strategy execution module 304 further includes:

[0197] The second strategy execution submodule is used to output a second prompt message when the vehicle-side processing strategy is the second vehicle-side processing sub-strategy. The second prompt message is used to output collision information and instruct the driver to go to the after-sales service end to inspect the power battery.

[0198] In one embodiment of the present application, the vehicle-side processing strategy further includes a third vehicle-side processing sub-strategy; the third vehicle-side processing sub-strategy is determined by the cloud when it detects that the collision intensity is less than or equal to the second intensity threshold and the cumulative number of collisions is less than the number threshold; the strategy execution module 304 further includes:

[0199] The third strategy execution submodule is used to output a third prompt message when the vehicle-side processing strategy is the third vehicle-side processing sub-strategy. The third prompt message is used to output collision information and instruct the driver that the power battery can be used normally.

[0200] In one embodiment of the present application, the battery collision processing device 300 further includes:

[0201] a target cell determination module, configured to determine a target cell corresponding to a collision position when the vehicle-side processing strategy is the second vehicle-side processing sub-strategy;

[0202] A fault prediction module is used to output the voltage information and temperature information of the target battery cell within a preset time period to a pre-trained fault prediction model to obtain a fault prediction result of the target battery cell;

[0203] The abnormal prompt module is used to output a fourth prompt message when the fault prediction result indicates that the target battery cell has an abnormality. The fourth prompt message is used to display the current voltage information and current temperature information of the target battery cell, and instruct the driver to stop the car and wait for rescue from the after-sales service.

[0204] It should be noted that the specific implementation of the battery collision processing device 300 in the embodiment of the present application refers to the specific implementation of the battery collision processing method proposed in the first aspect of the embodiment of the present application, and will not be repeated here.

[0205] In a fourth aspect, referring to FIG. 7 , an embodiment of the present application provides another battery collision processing device 400 , which is used in the cloud. The another battery collision processing device 400 includes:

[0206] The collision information acquisition module 401 is used to obtain collision information of the power battery uploaded by the vehicle. The collision information is determined based on collision signals collected by multiple collision sensors installed at different positions on the power battery. The collision information includes the collision location and collision intensity.

[0207] A strategy determination module 402 is configured to determine a vehicle-side processing strategy for the vehicle and / or an after-sales processing strategy for the after-sales service based on the collision information;

[0208] The strategy sending module 403 is used to send the vehicle-side processing strategy to the vehicle side so that the vehicle side executes the vehicle-side processing strategy, and / or send the after-sales processing strategy to the after-sales side so that the after-sales side executes the after-sales processing strategy.

[0209] In one embodiment of the present application, the policy determination module 402 includes:

[0210] A first strategy determination submodule is configured to determine, when the collision intensity is greater than a first intensity threshold, the vehicle-side processing strategy as the first vehicle-side processing sub-strategy and the after-sales processing strategy as the first after-sales processing sub-strategy; the first vehicle-side processing sub-strategy and the first after-sales processing sub-strategy are strategies for situations where the vehicle needs to stop and wait for assistance from the after-sales service provider;

[0211] The second strategy determination submodule is used to determine the vehicle-side processing strategy and the after-sales processing strategy based on the comparison result of the collision intensity and the second intensity threshold when the collision intensity is less than or equal to the first intensity threshold; wherein the second intensity threshold is less than the first intensity threshold.

[0212] In one embodiment of the present application, the second strategy determination submodule includes:

[0213] The first strategy determination unit is configured to, when the collision intensity is greater than a second intensity threshold, determine the vehicle-side processing strategy to be the second vehicle-side processing sub-strategy, and determine the after-sales processing strategy to be the second after-sales processing sub-strategy; the second vehicle-side processing sub-strategy and the second after-sales processing sub-strategy are strategies for when the vehicle needs to go to the after-sales service center to inspect and repair the power battery;

[0214] The second strategy determination unit is used to determine the vehicle-side processing strategy based on the cumulative number of collisions in which the collision intensity of the power battery is less than or equal to the second intensity threshold when the collision intensity is less than or equal to the second intensity threshold.

[0215] In one embodiment of the present application, the second strategy determination unit includes:

[0216] A first strategy determination subunit is configured to determine, when the cumulative number of collisions is greater than or equal to a number threshold, the vehicle-side processing strategy to be the second vehicle-side processing sub-strategy, and to determine the after-sales processing strategy to be the second after-sales processing sub-strategy;

[0217] The second strategy determination subunit is used to determine the vehicle-side processing strategy as the third vehicle-side processing sub-strategy when the cumulative number of collisions is less than the number threshold. The third vehicle-side processing sub-strategy is a strategy for the case where the power battery can be used normally.

[0218] It should be noted that the specific implementation of the battery collision processing device 400 in the embodiment of the present application refers to the specific implementation of another battery collision processing method proposed in the first aspect of the embodiment of the present application, and will not be repeated here.

[0219] In a fifth aspect, referring to FIG8 , an embodiment of the present application provides a battery collision processing system 500 , which includes a vehicle side 501 , a cloud side 502 , and a sales side 503 , wherein:

[0220] The vehicle end 501 is used to obtain collision signals collected by multiple collision sensors installed at different positions on the power battery, and determine the collision information of the power battery based on the collision signal collected by each collision sensor. The collision information includes the collision position and collision intensity;

[0221] The vehicle end 501 is also used to upload the collision information to the cloud 502;

[0222] The cloud 502 is used to receive collision information and determine a vehicle-side processing strategy for the vehicle 501 and / or a post-sales processing strategy for the post-sales end 503 based on the collision information;

[0223] The cloud 502 is also used to send the vehicle-side processing strategy to the vehicle-side 501 so that the vehicle-side 501 executes the vehicle-side processing strategy, and / or send the after-sales processing strategy to the after-sales backend 503 so that the after-sales backend 503 executes the after-sales processing strategy.

[0224] It should be noted that the specific implementation of the battery collision processing system 500 of the embodiment of the present application refers to the specific implementation of the battery collision processing method proposed in the first aspect of the embodiment of the present application and the specific implementation of another battery collision processing method proposed in the second aspect of the embodiment of the present application, which will not be repeated here.

[0225] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0226] The various component embodiments of the present disclosure can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or digital signal processor (DSP) can be used in practice to implement some or all of the functions of some or all of the components in the computing processing equipment according to the embodiments of the present disclosure. The present disclosure can also be implemented as a device or apparatus program for executing part or all of the methods described herein, for example, a computer program and a computer program product. Such a program implementing the present disclosure can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.

[0227] For example, FIG9 illustrates a computing and processing device that can implement the method according to the present disclosure. The computing and processing device conventionally includes a processor 1010 and a computer program product or computer-readable medium in the form of a memory 1020. Memory 1020 can be an electronic memory such as flash memory, EEPROM (Electrically Erasable Programmable Read-Only Memory), EPROM, hard disk, or ROM. Memory 1020 has a storage space 1030 for program code for executing any of the method steps described above. For example, the storage space 1030 for program code can include individual program codes for implementing the above method steps S201-S203, respectively. These program codes can be read from or written to one or more computer program products. These computer program products include program code carriers such as hard disks, compact disks (CDs), memory cards, or floppy disks. Such computer program products are typically portable or fixed storage units as described with reference to FIG10. The storage unit can have storage segments, storage space, etc. arranged similarly to memory 1020 in the computing and processing device of FIG9. The program code can, for example, be compressed in a suitable form. Typically, the storage unit includes computer-readable code 1031 , ie, code that can be read by a processor such as 1010 , which, when executed by a computing processing device, causes the computing processing device to perform the steps of the method described above.

[0228] References herein to "one embodiment," "an embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Furthermore, please note that instances of the phrase "in one embodiment" do not necessarily all refer to the same embodiment.

[0229] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A method for handling battery collisions, characterized in that, Applied to the vehicle side, the method includes: Obtaining collision signals collected by a plurality of collision sensors disposed at different positions on the power battery; Based on the collision signals collected by each of the collision sensors, determining collision information of the power battery; the collision information includes a collision position and a collision intensity; Uploading the collision information to the cloud so that the cloud determines a vehicle-side processing strategy for the vehicle side based on the collision information; Receiving and executing the vehicle-side processing strategy sent by the cloud; wherein, the vehicle-side processing strategy is a strategy for the power battery.

2. The battery collision handling method according to claim 1, wherein The collision sensor is an elastic wave sensor, and the collision signal is an elastic wave signal; The step of determining collision information of the power battery based on the collision signals collected by each of the collision sensors includes: Based on the position of each elastic wave sensor relative to the power battery and the acquisition time of the elastic wave signal collected by each elastic wave sensor, determining the collision position; Based on the signal peak value of the elastic wave signal collected by each elastic wave sensor, determining the collision intensity.

3. The battery collision handling method according to claim 1, wherein The vehicle-side processing strategy includes a first vehicle-side processing sub-strategy; the first vehicle-side processing sub-strategy is determined by the cloud when it detects that the collision intensity is greater than a first intensity threshold; The step of executing the vehicle-side processing strategy sent by the cloud includes: When the vehicle-side processing strategy is the first vehicle-side processing sub-strategy, outputting a first prompt message, where the first prompt message is used to instruct the driver to stop and wait for rescue from the after-sales end.

4. The battery collision handling method according to claim 3, wherein The vehicle-side processing strategy further includes a second vehicle-side processing sub-strategy; the second vehicle-side processing sub-strategy is determined by the cloud when it detects that the collision intensity is less than or equal to the first intensity threshold and greater than a second intensity threshold, or when it detects that the cumulative number of collisions with the collision intensity of the power battery less than or equal to the second intensity threshold is greater than or equal to a number threshold; wherein, the second intensity threshold is less than the first intensity threshold; The step of executing the vehicle-side processing strategy sent by the cloud further includes: When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, outputting a second prompt message, where the second prompt message is used to instruct the driver to go to the after-sales end to repair the power battery.

5. The battery collision handling method according to claim 4, wherein The vehicle-side processing strategy further includes a third vehicle-side processing sub-strategy; the third vehicle-side processing sub-strategy is determined by the cloud when it detects that the collision intensity is less than or equal to the second intensity threshold and the cumulative number of collisions is less than the number threshold; The step of executing the vehicle-side processing strategy sent by the cloud further includes: When the vehicle-side processing strategy is the third vehicle-side processing sub-strategy, outputting a third prompt message, where the third prompt message is used to instruct the driver that the power battery can be used normally.

6. The battery collision handling method according to claim 4, wherein The method further includes: When the vehicle-side processing strategy is the second vehicle-side processing sub-strategy, determining a target battery cell corresponding to the collision position; Output the voltage information and temperature information of the target battery cell within a preset time period to a pre-trained fault prediction model, and output the fault prediction result of the target battery cell; In the case that the fault prediction result indicates that the target battery cell is abnormal, output a fourth prompt message, which is used to display the current voltage information and current temperature information of the target battery cell, and instruct the driver to stop and wait for rescue from the after-sales end.

7. A method for handling battery collisions, characterized in that, Applied to the cloud, the method includes: Obtain the collision information of the power battery uploaded by the vehicle end; the collision information is determined based on the collision signals collected by multiple collision sensors arranged at different positions on the power battery, and the collision information includes the collision position and the collision intensity; Based on the collision information, determine a vehicle-end processing strategy for the vehicle end and / or an after-sales processing strategy for the after-sales end; Send the vehicle-end processing strategy to the vehicle end so that the vehicle end executes the vehicle-end processing strategy, and / or send the after-sales processing strategy to the after-sales end so that the after-sales end executes the after-sales processing strategy.

8. The battery collision handling method according to claim 7, wherein The step of determining a vehicle-end processing strategy for the vehicle end and / or an after-sales processing strategy for the after-sales end based on the collision information includes: In the case that the collision intensity is greater than a first intensity threshold, determine the vehicle-end processing strategy as a first vehicle-end processing sub-strategy, and determine the after-sales processing strategy as a first after-sales processing sub-strategy; the first vehicle-end processing sub-strategy and the first after-sales processing sub-strategy are strategies for the vehicle end to stop and wait for rescue from the after-sales end; In the case that the collision intensity is less than or equal to the first intensity threshold, determine the vehicle-end processing strategy and the after-sales processing strategy based on the comparison result between the collision intensity and a second intensity threshold; wherein, the second intensity threshold is less than the first intensity threshold.

9. The battery collision handling method according to claim 8, wherein The step of determining the vehicle-end processing strategy and the after-sales processing strategy based on the comparison result between the collision intensity and the second intensity threshold includes: In the case that the collision intensity is greater than the second intensity threshold, determine the vehicle-end processing strategy as a second vehicle-end processing sub-strategy, and determine the after-sales processing strategy as a second after-sales processing sub-strategy; the second vehicle-end processing sub-strategy and the second after-sales processing sub-strategy are strategies for the vehicle end to go to the after-sales end to repair the power battery; In the case that the collision intensity is less than or equal to the second intensity threshold, determine the vehicle-end processing strategy based on the cumulative collision times that the collision intensity of the power battery is less than or equal to the second intensity threshold.

10. The battery collision handling method according to claim 9, wherein The step of determining the vehicle-end processing strategy based on the cumulative collision times that the collision intensity of the power battery is less than or equal to the second intensity threshold includes: In the case that the cumulative collision times is greater than or equal to a times threshold, determine the vehicle-end processing strategy as the second vehicle-end processing sub-strategy, and determine the after-sales processing strategy as the second after-sales processing sub-strategy; When the cumulative number of collisions is less than the threshold number of times, determine that the vehicle-end processing strategy is the third vehicle-end processing sub-strategy, and the third vehicle-end processing sub-strategy is a strategy for the case where the power battery can be used normally.

11. A battery collision handling device, characterized in that, Applied to the vehicle end, the device includes: A collision signal acquisition module, configured to acquire collision signals collected by a plurality of collision sensors disposed at different positions on the power battery; A collision information determination module, configured to determine the collision information of the power battery based on the collision signals collected by each of the collision sensors; the collision information includes a collision position and a collision intensity; A collision information sending module, configured to upload the collision information to the cloud, so that the cloud determines a vehicle-end processing strategy for the vehicle end based on the collision information; A strategy execution module, configured to receive and execute the vehicle-end processing strategy sent by the cloud; wherein, the vehicle-end processing strategy is a strategy for the power battery.

12. A battery collision handling device, characterized in that, Applied to the cloud, the device includes: A collision information acquisition module, configured to acquire the collision information of the power battery uploaded by the vehicle end; the collision information is determined based on the collision signals collected by a plurality of collision sensors disposed at different positions on the power battery, and the collision information includes a collision position and a collision intensity; A strategy determination module, configured to determine a vehicle-end processing strategy for the vehicle end and / or an after-sales processing strategy for the after-sales end based on the collision information; A strategy sending module, configured to send the vehicle-end processing strategy to the vehicle end so that the vehicle end executes the vehicle-end processing strategy, and / or send the after-sales processing strategy to the after-sales end so that the after-sales end executes the after-sales processing strategy.

13. A battery collision handling system, characterized in that, The system includes a vehicle end, a cloud end, and an after-sales end, wherein, The vehicle end is configured to acquire collision signals collected by a plurality of collision sensors disposed at different positions on the power battery, and determine the collision information of the power battery based on the collision signals collected by each of the collision sensors, and the collision information includes a collision position and a collision intensity; The vehicle end is further configured to upload the collision information to the cloud end; The cloud end is configured to receive the collision information and determine a vehicle-end processing strategy for the vehicle end and / or an after-sales processing strategy for the after-sales end based on the collision information; The cloud end is further configured to send the vehicle-end processing strategy to the vehicle end so that the vehicle end executes the vehicle-end processing strategy, and / or send the after-sales processing strategy to the after-sales end so that the after-sales end executes the after-sales processing strategy.

14. A computer program, including computer-readable code, which when running on a computing processing device causes the computing processing device to execute the battery collision processing method according to any one of claims 1-10.

15. A computer-readable medium, in which the computer program according to claim 14 is stored.

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