Thermal runaway processing method, apparatus, storage medium, and program product

Abstract

The present disclosure relates to a thermal runaway processing method, device, storage medium and program product. The method comprises: in response to determining that the device has a collision, determining a thermal runaway judgment result of the device according to a first parameter of the device and a change feature of a second parameter of the device within a first preset time length since the device has the collision; and executing a corresponding response action according to the thermal runaway judgment result; wherein the number of times of value jump of the first parameter caused by the device collision is lower than that of the second parameter. In this way, when the device has a collision, the first parameter can be used to reduce the interference of the collision impact on the judgment result, while the second parameter can be fully utilized to respond sensitively to the early thermal runaway, so as to obtain a precise and reliable thermal runaway judgment result, and then the running safety of the device after the collision can be ensured through the execution of the response action.

Description

Technical Field

[0001] This disclosure relates to the field of power battery safety management, and in particular to a thermal runaway handling method, apparatus, storage medium, and program product. Background Technology

[0002] In collisions involving new energy vehicles, battery pack compression can easily trigger thermal runaway. Currently, most methods rely on single voltage or temperature thresholds for thermal runaway detection. However, this approach is ill-suited to the complex dynamic conditions following a collision, and carries the risk of missed or false alarms. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a thermal runaway handling method, apparatus, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a method for handling thermal runaway is provided, comprising: In response to determining that a collision has occurred, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision. Based on the thermal runaway assessment result, execute the corresponding response action; The first parameter experiences fewer value jumps due to device collisions than the second parameter.

[0005] In the above technical solution, upon equipment collision, thermal runaway is determined by comparing the current state of a first parameter (which exhibits higher stability at the time of collision) with the change characteristics of a second parameter (which has relatively lower stability) within a first preset time period after the collision. Based on the result of this determination, corresponding response actions are executed. This approach leverages the first parameter to reduce interference from the collision impact on the determination result while fully utilizing the second parameter's sensitive response to the early stages of thermal runaway, resulting in accurate and reliable thermal runaway determination. Furthermore, the execution of response actions ensures the safe operation of the equipment after the collision.

[0006] In some possible implementations, the step of determining a thermal runaway judgment result of the device in response to determining that a collision has occurred includes, based on a first parameter of the device and the change characteristics of a second parameter of the device within a first preset time period from the time of the collision: In response to determining that a collision has occurred in the device, it is determined whether the third parameter of the device meets the preset thermal runaway judgment condition; If the thermal runaway judgment condition is not met, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the collision of the device. The third parameter experiences fewer value jumps due to device collisions than the second parameter.

[0007] In the above technical solution, when a collision is determined to have occurred, a highly stable third parameter is prioritized for initial screening. This avoids missed detections due to insufficient discriminative power of the third parameter under collision conditions, quickly pinpointing a relatively clear thermal runaway condition and improving the efficiency of thermal runaway judgment. If the third parameter does not meet the thermal runaway judgment conditions, a secondary judgment is performed using the current state of the first parameter and the change characteristics of the second parameter within a first preset time after the collision. This allows for the reduction of interference from the collision impact on the judgment result using the first parameter, while fully utilizing the sensitive response of the second parameter to the early stages of thermal runaway, resulting in accurate and reliable thermal runaway judgment results. Through this multi-layered judgment mechanism, the possibility of missed or false thermal runaway judgments is reduced.

[0008] In some possible implementations, the method further includes: Within the first preset duration, at least one first sub-window of a second preset duration and at least one second sub-window of a third preset duration are divided, wherein the first preset duration is longer than the third preset duration and the third preset duration is longer than the second preset duration; Based on the fluctuation of the second parameter within the first sub-window, determine the first change characteristic; Based on the changing trend of the second parameter within the second sub-window, determine the second change characteristic; The variation characteristics of the second parameter include the first variation characteristics and / or the second variation characteristics.

[0009] In the above technical solution, by dividing the first preset time period into sub-windows of different lengths, the short-term fluctuations and long-term evolution trends of the second parameter can be determined respectively, taking into account both the local details and the overall trend of the second parameter changes, and providing more comprehensive and reliable data support for the secondary judgment of thermal runaway.

[0010] In some possible implementations, determining the first change characteristic based on the fluctuation of the second parameter within the first sub-window includes: Within each of the first sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each first sub-window, an index characterizing the degree of dispersion of the direction of change of the second parameter within each first sub-window is determined. The first change feature is determined based on the respective indicators of each of the first sub-windows.

[0011] In the above technical solution, the degree of dispersion of the direction of change is quantified by the magnitude relationship of adjacent sampled values ​​within a short time window, and the instantaneous fluctuation characteristics of the second parameter can be accurately determined.

[0012] In some possible implementations, determining the second change feature based on the change trend of the second parameter within the second sub-window includes: Within each of the second sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each second sub-window, an index representing the degree of convergence of the direction of change of the second parameter within each second sub-window is determined. The second change characteristic is determined based on the respective indicators of each of the second sub-windows.

[0013] In the above technical solution, the degree of convergence of change direction is quantified by the magnitude relationship of adjacent sampled values ​​within a long time window, and the overall change trend of the second parameter can be accurately determined.

[0014] In some possible implementations, determining the thermal runaway judgment result of the device based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision includes: The target judgment value is obtained by weighted summation of the change characteristics of the second parameter and the first parameter; Based on the target judgment value, the corresponding thermal runaway risk level is determined, and the thermal runaway risk level is used as the thermal runaway judgment result.

[0015] In the above technical solution, the advantages of multi-dimensional features can be integrated by weighted summation. While using the first parameter to reduce the interference of collision impact on the judgment result, the second parameter is fully utilized to make full use of the sensitive response of the early stage of thermal runaway, so as to accurately quantify the degree of thermal runaway risk.

[0016] In some possible implementations, determining the corresponding thermal runaway risk level based on the target judgment value includes: If the target judgment value is greater than the first preset threshold, then the thermal runaway risk level is determined to be the first level; If the target judgment value is greater than the second preset threshold and less than or equal to the first preset threshold, then the thermal runaway risk level is determined to be the second level. If the target judgment value is less than or equal to the second preset threshold, then the thermal runaway risk level is determined to be level three; The degree of thermal runaway risk represented by the first level, the second level, and the third level decreases sequentially.

[0017] In the above technical solution, the target judgment value is divided into three risk levels by using the first preset threshold and the second preset threshold as boundaries. This can achieve a refined classification assessment of thermal runaway risk and provide a clear basis for differentiated response.

[0018] In some possible implementations, the step of executing the corresponding response action based on the thermal runaway determination result includes: If the thermal runaway risk level is the first level, then the preset thermal runaway suppression strategy is executed; If the thermal runaway risk level is the second level, then the preset safety warning strategy is executed; If the thermal runaway risk level is the third level, then the corresponding event data is stored in the preset storage unit.

[0019] In the above technical solution, a three-level response strategy of suppression, warning and recording is matched according to the three risk levels to achieve precise matching between prevention and control measures and risk levels, thereby reducing unnecessary intervention while ensuring equipment safety.

[0020] In some possible implementations, the method further includes: The first preset duration is determined based on a preset duration reference value and the device acceleration at the time of the collision, wherein the first preset duration and the absolute value of the device acceleration are positively correlated.

[0021] In the above technical solution, the length of the observation window can be dynamically adjusted according to the real-time equipment acceleration, so that the duration of the observation window matches the collision intensity, thereby improving the reliability of the thermal runaway judgment result.

[0022] In some possible implementations, the method further includes: If the thermal runaway judgment condition is met, it is determined that the device has experienced thermal runaway, and a preset thermal runaway suppression strategy is executed.

[0023] In the above technical solution, if the thermal runaway judgment condition is met, it can be determined that the equipment has experienced thermal runaway, and a preset thermal runaway suppression strategy can be executed to curb the spread of thermal runaway and reduce the degree of damage caused by the accident.

[0024] In some possible implementations, the first parameter includes at least one of the following: the temperature change rate of the battery pack, the internal pressure change rate of the battery pack, the state of charge change rate of the battery pack, and the internal resistance change rate of the battery pack; the second parameter includes at least one of the following: the cell voltage of the battery pack and the insulation resistance of the battery pack; the third parameter includes at least one of the following: the internal pressure of the battery pack, the temperature of the battery pack, the internal pressure change rate of the battery pack, and the temperature change rate of the battery pack.

[0025] In the above technical solution, by clarifying the specific contents of the first, second, and third parameters, the advantages of various parameters in terms of stability and sensitivity can be fully utilized in the judgment of thermal runaway, thereby improving the reliability of the judgment of thermal runaway.

[0026] According to a second aspect of the present disclosure, a thermal runaway handling apparatus is provided, comprising: The first determining module is used to determine the thermal runaway judgment result of the device in response to determining that a collision has occurred, based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision. The control module is used to execute corresponding response actions based on the thermal runaway judgment result; The first parameter experiences fewer value jumps due to device collisions than the second parameter.

[0027] According to a third aspect of the present disclosure, a thermal runaway handling apparatus is provided, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute the executable instructions in the memory to implement the steps of the thermal runaway handling method provided in the first aspect of this disclosure.

[0028] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements the steps of the thermal runaway handling method provided in the first aspect of the present disclosure.

[0029] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps of the thermal runaway handling method provided in the first aspect of the present disclosure.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0032] Figure 1 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment.

[0033] Figure 2 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment.

[0034] Figure 3 This is a flowchart illustrating a method for determining the variation characteristics of a second parameter according to an exemplary embodiment.

[0035] Figure 4 This is a schematic diagram illustrating the change of a second parameter during thermal runaway and device collision, according to an exemplary embodiment.

[0036] Figure 5 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment.

[0037] Figure 6 This is a block diagram illustrating a thermal runaway handling apparatus according to an exemplary embodiment.

[0038] Figure 7 This is a block diagram illustrating a thermal runaway handling apparatus according to an exemplary embodiment. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0040] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.

[0041] Figure 1 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment. This thermal runaway handling method can be applied to the battery management system (BMS) of a device, which may include electric vehicles, hybrid electric vehicles, range-extended electric vehicles, electric heavy trucks, electric ships, and energy storage power stations—electrical devices that pose a risk of mechanical impact and require thermal runaway monitoring and handling. Figure 1 As shown, the thermal runaway treatment method may include steps S101 to S102.

[0042] In step S101, in response to determining that a collision has occurred, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision.

[0043] Taking a vehicle as an example, if a collision signal is received from the airbag control unit (ACU) to the vehicle's CAN bus, or a collision hardwire signal is received from the ACU to the battery management system (BMS), it can be determined that a collision has occurred.

[0044] In one embodiment, the acceleration of the device can be acquired in real time. If the acceleration exceeds a preset acceleration threshold, it can be determined that the device has collided. This acceleration threshold can be pre-calibrated based on historical collision test data.

[0045] In one embodiment, the first parameter includes at least one of the following: the rate of change of temperature of the battery pack, the rate of change of internal air pressure of the battery pack, the rate of change of state of charge of the battery pack, and the rate of change of internal resistance of the battery pack.

[0046] In one embodiment, the second parameter includes at least one of the cell voltage of the battery pack and the insulation resistance of the battery pack.

[0047] Among these parameters, the first parameter experiences fewer numerical jumps due to equipment collisions than the second parameter. That is, the first parameter is a stability parameter with strong resistance to collision impacts, while the second parameter is more sensitive to collision impacts. In the early stages of actual thermal runaway, the second parameter continuously decreases, while collision impacts cause the second parameter to decrease first and then rebound in the short term; there is a difference between the two. Although the second parameter is more sensitive to collision impacts, it can also more acutely reflect the microscopic changes in the early stages of thermal runaway. Therefore, by executing step S101, while utilizing the first parameter to reduce the interference of collision impacts on the judgment result, the sensitive response of the second parameter to the early stages of thermal runaway can be fully utilized to obtain accurate and reliable thermal runaway judgment results.

[0048] In one embodiment, a target judgment value can be obtained by weighted summing of the changes in the device's first parameter and its second parameter within a first preset time period after the collision, and this target judgment value can be used to determine the corresponding thermal runaway judgment result. For example, if the target judgment value exceeds a threshold, it can be determined that the device has experienced thermal runaway; otherwise, it can be determined that the device has not experienced thermal runaway.

[0049] In one embodiment, the first preset duration can be a value pre-calibrated based on historical thermal runaway test data, or it can be determined by: determining the first preset duration based on a preset duration reference value and the device acceleration at the time of the collision. For example, the preset duration reference value can be a value pre-calibrated based on historical collision test data. The first preset duration and the absolute value of the device acceleration are positively correlated. For example, the first preset duration can be determined by the following formula. : .in, This represents the absolute value of the maximum acceleration detected by the device during the collision. For reference acceleration, this value can be calibrated based on the acceleration threshold of a minor collision with the device; This is a preset duration reference value. In this way, the observation window length (i.e., the first preset duration) can be dynamically adjusted according to the real-time equipment acceleration, so that the observation window duration matches the collision intensity, thereby improving the reliability of the thermal runaway judgment results.

[0050] In step S102, the corresponding response action is executed based on the thermal runaway judgment result.

[0051] In one embodiment, if the thermal runaway assessment result indicates that the device has experienced thermal runaway, a preset thermal runaway suppression strategy can be executed to curb the spread of thermal runaway and reduce the degree of damage from the accident. Taking an electric vehicle as an example, the preset thermal runaway suppression strategy may include at least one of disconnecting the high-voltage circuit, limiting the battery pack power output, and activating the battery pack fire extinguishing device.

[0052] In one embodiment, if the thermal runaway determination result indicates that the device has not experienced thermal runaway, the corresponding event data can be stored in a preset storage unit. For example, the collision time, the acceleration at the time of collision, the sequence of sampled values ​​of each parameter, and the intermediate calculation results (i.e., the target determination value) in the secondary determination process can be stored in the local storage unit and uploaded to the cloud database as the basis for subsequent fault tracing or algorithm optimization.

[0053] In the above technical solution, upon equipment collision, thermal runaway is determined by comparing the current state of a first parameter (which exhibits higher stability at the time of collision) with the change characteristics of a second parameter (which has relatively lower stability) within a first preset time period after the collision. Based on the result of this determination, corresponding response actions are executed. This approach leverages the first parameter to reduce interference from the collision impact on the determination result while fully utilizing the second parameter's sensitive response to the early stages of thermal runaway, resulting in accurate and reliable thermal runaway determination. Furthermore, the execution of response actions ensures the safe operation of the equipment after the collision.

[0054] Figure 2 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment. Figure 2 As shown, step S101 can be achieved through steps S1011 and S1012.

[0055] In step S1011, in response to determining that a collision has occurred in the device, it is determined whether the third parameter of the device meets the preset thermal runaway judgment condition.

[0056] Among them, the third parameter has fewer numerical jumps due to equipment collisions than the second parameter. In other words, the third parameter is a stability parameter with strong resistance to collision impacts, and its corresponding preset thermal runaway judgment condition has high reliability.

[0057] In one embodiment, the third parameter may include at least one of the following: the internal air pressure of the battery pack, the temperature of the battery pack, the rate of change of the internal air pressure of the battery pack, and the rate of change of the temperature of the battery pack. For example, the third parameter may be determined to satisfy a preset thermal runaway judgment condition when multiple of the following conditions are met: The internal air pressure of the battery pack is greater than the preset air pressure threshold. The battery pack temperature exceeds the preset temperature threshold. The rate of change of air pressure inside the battery pack is greater than the preset air pressure change rate threshold. The temperature change rate of the battery pack is greater than the preset temperature change rate threshold.

[0058] Among them, the pressure threshold, temperature threshold, pressure change rate threshold, and temperature change rate threshold can be pre-calibrated based on historical thermal runaway test data and battery electrochemical characteristics. When thermal runaway occurs, the pressure inside the battery pack usually rises rapidly, and the temperature also rises rapidly. By jointly judging the aforementioned multiple third parameters, a reliable judgment of thermal runaway events can be achieved.

[0059] If the thermal runaway judgment condition is met, it can be determined that the equipment has experienced thermal runaway, and a preset thermal runaway suppression strategy will be executed to curb the spread of thermal runaway and reduce the degree of damage caused by the accident. Specific embodiments of the thermal runaway suppression strategy have been described in detail above and will not be repeated here.

[0060] If the thermal runaway judgment condition is not met, step S1012 can be executed to make a second judgment on whether thermal runaway has occurred, so as to avoid false alarms caused by insufficient discrimination of the third parameter under collision conditions.

[0061] In step S1012, if the thermal runaway judgment condition is not met, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the collision of the device.

[0062] In step S1011, using the third parameter for initial screening can effectively avoid false alarms caused by collision interference, quickly identify relatively clear thermal runaway conditions, and improve the efficiency of thermal runaway judgment. If the thermal runaway judgment conditions are not met, the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period after the collision can be combined to achieve a secondary judgment of thermal runaway, thereby avoiding missed judgments.

[0063] exist Figure 2In the illustrated scheme, when a collision is determined to have occurred, a highly stable third parameter is prioritized for initial screening. This avoids missed detections due to insufficient discriminative power of the third parameter under collision conditions, quickly identifying a relatively clear thermal runaway condition and improving the efficiency of thermal runaway judgment. If the third parameter does not meet the thermal runaway judgment criteria, a secondary judgment is performed using the current state of the first parameter and the changes in the second parameter within a first preset time after the collision. This allows for the reduction of interference from the collision impact on the judgment result using the first parameter, while fully utilizing the sensitive response of the second parameter to the early stages of thermal runaway, resulting in accurate and reliable thermal runaway judgment results. Through this multi-layered judgment mechanism, the possibility of missed or false thermal runaway judgments is reduced.

[0064] Figure 3 This is a flowchart illustrating a method for determining the variation characteristics of a second parameter according to an exemplary embodiment. The variation characteristics of the second parameter include the first variation characteristics described below, and / or, the second variation characteristics. For example... Figure 3 As shown, the method for determining the change feature may include steps S301 to S303.

[0065] In step S301, at least one first sub-window with a second preset duration and at least one second sub-window with a third preset duration are divided within a first preset duration.

[0066] Among them, the first preset duration > the third preset duration > the second preset duration.

[0067] In one embodiment, using the collision occurrence time t0 as a reference, the system slides backward along the time axis to divide the space into sub-windows. If the first preset duration is t1, the observation window corresponding to the first preset duration can be determined as [t0, t0+t1]. From [t0, t0+t1], n sequentially non-overlapping first sub-windows can be divided, and from [t0, t0+t1], m sequentially non-overlapping second sub-windows can be divided. The first and second sub-windows are used to determine short-term disturbances and long-term change trends, respectively.

[0068] In step S302, the first change characteristic is determined based on the fluctuation of the second parameter within the first sub-window.

[0069] In one embodiment, step S302 can be implemented in the following way: Within each first sub-window, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each first sub-window, an index characterizing the degree of dispersion of the second parameter's direction of change within each first sub-window is determined. The first change characteristic is determined based on the corresponding indicators of each first sub-window.

[0070] For example, for each first sub-window, the difference between two adjacent sampling points within that sub-window can be calculated. If the latter point is larger than the former, it is recorded as +1; if smaller, as -1; and if they are equal, as 0. The average of these counts for the first sub-window is then taken to obtain the monotonicity coefficient Zs_i (i=1,2,…,n) of that sub-window. This monotonicity coefficient serves as the index for that sub-window, characterizing the dispersion of the second parameter's change direction within that sub-window. For example, the mean of each Zs_i can be determined as the first change characteristic. In this way, by quantifying the dispersion of the change direction through the magnitude relationship of adjacent sampling values ​​within a short-term window, the instantaneous fluctuation characteristics of the second parameter can be accurately determined.

[0071] In step S303, the second change feature is determined based on the change trend of the second parameter within the second sub-window.

[0072] In one embodiment, step S303 can be implemented in the following way: Within each second sub-window, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of adjacent sampled values ​​within each second sub-window, indicators representing the degree of convergence of the direction of change of the second parameter within each second sub-window are determined respectively. The second change characteristic is determined based on the corresponding indicators of each second sub-window.

[0073] For example, for each second sub-window, the difference between two adjacent sampling points within that sub-window can be calculated. If the latter point is larger than the former, it is recorded as +1; if smaller, as -1; and if they are equal, as 0. The average of the counts for that second sub-window is then used to obtain the monotonicity coefficient Zl_j (j=1,2,…,m) as an index corresponding to that sub-window, characterizing the degree of convergence in the direction of change of the second parameter within that sub-window. For example, the mean of each Zl_j can be determined as the second change characteristic. In this way, by quantifying the degree of convergence in the direction of change through the magnitude relationship of adjacent sampling values ​​within a long-term window, the overall change trend of the second parameter can be accurately determined.

[0074] The values ​​of Zs_i and Zl_j mentioned above, when close to 1, indicate that the second parameter in the sub-window is showing a continuous monotonically increasing trend; when close to -1, indicate that the second parameter in the sub-window is showing a continuous monotonically decreasing trend; when close to 0, indicate that the direction of change of the second parameter in the sub-window is disordered and has no monotonic tendency.

[0075] In the early stages of a real thermal runaway, the second parameter (Zl_j) decreases slowly and gradually, remaining in the negative range for an extended period. Similarly, Zs_i also remains negative without recovering. However, the disturbance to the second parameter caused by a collision is a "surge followed by a rebound" fluctuation. Zs_i only briefly spikes to near -1 in the initial period after the collision, then rapidly recovers to near 0 or even turns positive; while Zl_j fluctuates around 0. Therefore, based on the sustained stability of Zs_i and Zl_j values ​​within a sub-window, the instantaneous disturbance caused by a collision can be effectively distinguished from real thermal runaway.

[0076] like Figure 4 As shown, the first sub-window corresponds to the short-term windows Zs1 to Zs5 in the figure, and the second sub-window corresponds to the long-term window Zl in the figure. Under actual thermal runaway conditions, the values ​​of Zs1 to Zs5 and Zl1 are all -1, and the corresponding first and second change characteristics can both be -1. When the device only experiences a collision, the values ​​of Zs1 to Zs5 are -1, -1, 0, 1, and 1, respectively, and the value of Zl1 is 0, and the corresponding first and second change characteristics can both be 0. The values ​​of the first and second change characteristics can be used to distinguish between actual thermal runaway and instantaneous collision disturbances.

[0077] exist Figure 3 The technical solution shown can determine the short-term fluctuation and long-term evolution trend of the second parameter by dividing the first preset time period into sub-windows of different lengths. It takes into account both the local details and the overall trend of the second parameter change, and provides more comprehensive and reliable data support for the secondary judgment of thermal runaway.

[0078] In some possible implementations, the thermal runaway judgment result of the device can be determined by the following method based on the change characteristics of the device's first parameter and the second parameter of the device within a first preset time period from the time of the collision: The target judgment value is obtained by weighted summation of the variation characteristics of the second parameter and the first parameter; Based on the target judgment value, the corresponding thermal runaway risk level is determined, and the thermal runaway risk level is used as the thermal runaway judgment result.

[0079] In one embodiment, the variation characteristics of the second parameter and the corresponding weights of the first parameter can be pre-calibrated based on historical collision thermal runaway data. The variation characteristics of the second parameter and the absolute value of the first parameter can be weighted and summed. By weighted summation, the advantages of multi-dimensional features can be integrated. While utilizing the first parameter to reduce the interference of collision impact on the judgment result, the sensitivity of the second parameter to the early stages of thermal runaway can be fully utilized to accurately quantify the degree of thermal runaway risk.

[0080] In one embodiment, the corresponding thermal runaway risk level can be determined based on the target judgment value in the following manner: If the target judgment value is greater than the first preset threshold, then the thermal runaway risk level is determined to be Level 1; If the first preset threshold is greater than or equal to the target judgment value and greater than the second preset threshold, then the thermal runaway risk level is determined to be the second level. If the second preset threshold is greater than or equal to the target judgment value, then the thermal runaway risk level is determined to be Level 3.

[0081] The first and second preset thresholds can be pre-calibrated based on historical thermal runaway test data. For example, the first and second preset thresholds can be set to 6.5 and 4.5, respectively. The degree of thermal runaway risk represented by the first, second, and third levels decreases sequentially. If the target judgment value > the first preset threshold, it can be determined that the equipment has experienced thermal runaway and the risk is extremely high; if the first preset threshold ≥ the target judgment value > the second preset threshold, it can be determined that the equipment definitely has a risk of thermal runaway; if the second preset threshold ≥ the target judgment value, it can be determined that the equipment has a low risk of thermal runaway.

[0082] Thus, by using the first and second preset thresholds as boundaries, the target judgment value is divided into three risk levels, which can achieve a refined classification assessment of thermal runaway risk and provide a clear basis for differentiated response.

[0083] In one embodiment, step S103 can be implemented in the following manner: If the thermal runaway risk level is Level 1, then the preset thermal runaway suppression strategy will be executed. If the risk level of thermal runaway is Level 2, then the preset safety warning strategy will be executed; If the thermal runaway risk level is level three, the corresponding event data will be stored in the preset storage unit.

[0084] The thermal runaway suppression strategy and the specific implementation of storing the corresponding event data in the preset storage unit have been described in detail above and will not be repeated here.

[0085] For example, the preset safety warning strategy may include at least one of the following: generating corresponding diagnostic fault codes (DTCs), displaying text and icon warning messages such as "Check the power battery system" or "Drive with caution" to the user through the vehicle's instrument panel or display screen, and issuing voice prompts or alarm sounds through the speaker. Simultaneously, the thermal runaway risk level and related parameters can be reported to the corresponding monitoring platform.

[0086] If the thermal runaway risk level is Level 1, it can be determined that the equipment has experienced thermal runaway with an extremely high risk. In this case, implementing a preset thermal runaway suppression strategy can curb the spread of thermal runaway and reduce the extent of damage. If the thermal runaway risk level is Level 2, it can be determined that the equipment has a potential risk of thermal runaway, but has not yet reached an immediate critical state. In this case, implementing a preset safety warning strategy can promptly remind operators to take appropriate measures to prevent further escalation of the risk. If the thermal runaway risk level is Level 3, it can be determined that the equipment has a low risk of thermal runaway. In this case, storing the corresponding event data in a preset storage unit can provide data support for subsequent fault tracing or algorithm optimization.

[0087] In this way, a three-level response strategy of suppression, warning, and recording is matched according to the three risk levels to achieve precise matching between prevention and control measures and risk levels, thereby ensuring equipment safety while reducing unnecessary intervention.

[0088] Figure 5 This is a flowchart illustrating a thermal runaway handling method according to an exemplary embodiment. Through this... Figure 5 This allows for a clearer understanding of the implementation process of the thermal runaway handling method provided in this disclosure. For example... Figure 5 The specific embodiments of each step shown have been described in detail in the corresponding step descriptions above, and will not be repeated here.

[0089] Figure 6 This is a block diagram illustrating a thermal runaway handling apparatus according to an exemplary embodiment. (Refer to...) Figure 3 The device includes a first determining module 501 and a control module 502.

[0090] The first determining module is used to determine the thermal runaway judgment result of the device in response to determining that a collision has occurred, based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision. The control module is used to execute corresponding response actions based on the thermal runaway judgment result; The first parameter experiences fewer value jumps due to device collisions than the second parameter.

[0091] In the above technical solution, upon equipment collision, thermal runaway is determined by comparing the current state of a first parameter (which exhibits higher stability at the time of collision) with the change characteristics of a second parameter (which has relatively lower stability) within a first preset time period after the collision. Based on the result of this determination, corresponding response actions are executed. This approach leverages the first parameter to reduce interference from the collision impact on the determination result while fully utilizing the second parameter's sensitive response to the early stages of thermal runaway, resulting in accurate and reliable thermal runaway determination. Furthermore, the execution of response actions ensures the safe operation of the equipment after the collision.

[0092] In some possible implementations, the first determining module 501 includes: The first determining submodule is used to determine whether the third parameter of the device meets the preset thermal runaway judgment condition in response to the determination that the device has collided. The second determining submodule is used to determine the thermal runaway judgment result of the device based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision if the thermal runaway judgment condition is not met. The third parameter experiences fewer value jumps due to device collisions than the second parameter.

[0093] In some possible implementations, the device 500 further includes: The segmentation module is used to segment at least one first sub-window with a second preset duration and at least one second sub-window with a third preset duration within the first preset duration, wherein the first preset duration is longer than the third preset duration and the third preset duration is longer than the second preset duration. The second determining module is used to determine the first change feature based on the fluctuation of the second parameter within the first sub-window; The third determining module is used to determine the second change feature based on the change trend of the second parameter in the second sub-window; The variation characteristics of the second parameter include the first variation characteristics and / or the second variation characteristics.

[0094] In some possible implementations, the second determining module is used to determine the first change feature in the following manner: Within each of the first sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each first sub-window, an index characterizing the degree of dispersion of the direction of change of the second parameter within each first sub-window is determined. The first change feature is determined based on the respective indicators of each of the first sub-windows.

[0095] In some possible implementations, the third determining module is used to determine the second variation feature in the following manner: Within each of the second sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each second sub-window, an index representing the degree of convergence of the change direction of the second parameter within each second sub-window is determined. The second change characteristic is determined based on the respective indicators of each of the second sub-windows.

[0096] In some possible implementations, the first determining module is used to determine the thermal runaway judgment result of the device based on the change characteristics of the device's first parameter and the second parameter of the device within a first preset time period from the time of the collision: The target judgment value is obtained by weighted summation of the change characteristics of the second parameter and the first parameter; Based on the target judgment value, the corresponding thermal runaway risk level is determined, and the thermal runaway risk level is used as the thermal runaway judgment result.

[0097] In some possible implementations, the first determining module is used to determine the corresponding thermal runaway risk level based on the target judgment value in the following manner: If the target judgment value is greater than the first preset threshold, then the thermal runaway risk level is determined to be the first level; If the target judgment value is greater than the second preset threshold and less than or equal to the first preset threshold, then the thermal runaway risk level is determined to be the second level. If the target judgment value is less than or equal to the second preset threshold, then the thermal runaway risk level is determined to be level three; The degree of thermal runaway risk represented by the first level, the second level, and the third level decreases sequentially.

[0098] In some possible implementations, the control module is used to execute corresponding response actions based on the thermal runaway determination result in the following manner: If the thermal runaway risk level is the first level, then the preset thermal runaway suppression strategy is executed; If the thermal runaway risk level is the second level, then the preset safety warning strategy is executed; If the thermal runaway risk level is the third level, then the corresponding event data is stored in the preset storage unit.

[0099] In some possible implementations, the device 500 further includes: The fourth determining module is used to determine the first preset duration based on a preset duration reference value and the device acceleration at the time of the collision, wherein the first preset duration and the absolute value of the device acceleration are positively correlated.

[0100] In some possible implementations, the device 500 further includes: The fifth determining module is used to determine that the device has experienced thermal runaway if the thermal runaway judgment condition is met, and to execute a preset thermal runaway suppression strategy.

[0101] In some possible implementations, the first parameter includes at least one of the following: the temperature change rate of the battery pack, the internal pressure change rate of the battery pack, the state of charge change rate of the battery pack, and the internal resistance change rate of the battery pack; the second parameter includes at least one of the following: the cell voltage of the battery pack and the insulation resistance of the battery pack; the third parameter includes at least one of the following: the internal pressure of the battery pack, the temperature of the battery pack, the internal pressure change rate of the battery pack, and the temperature change rate of the battery pack.

[0102] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0103] Figure 7 This is a block diagram illustrating a thermal runaway handling device 800 according to an exemplary embodiment. For example, the device 800 can be an electrical device that has a risk of mechanical impact and requires thermal runaway monitoring and handling, such as an electric vehicle, a hybrid electric vehicle, a range-extended electric vehicle, an electric heavy truck, an electric ship, and an energy storage power station.

[0104] Reference Figure 7 The device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output interface 812, a sensor component 814, and a communication component 816.

[0105] Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the thermal runaway handling method described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0106] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0107] Power supply component 806 provides power to various components of device 800. Power supply component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to device 800.

[0108] Multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0109] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0110] Input / output interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0111] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or a component of device 800, the presence or absence of user contact with device 800, the orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0112] Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. Device 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0113] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described thermal runaway handling method.

[0114] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the device 800 to complete the above-described thermal runaway handling method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0115] In another exemplary embodiment, a computer program product is also provided, the computer program product comprising a computer program executable by a programmable device, the computer program having a code portion for performing the above-described thermal runaway handling method when executed by the programmable device.

[0116] This disclosure also provides a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of the thermal runaway handling method provided in this disclosure.

[0117] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented through hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this application.

[0118] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0119] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In this description, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0120] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0121] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0122] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0123] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A method for handling thermal runaway, characterized in that, include: In response to determining that a collision has occurred, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision. Based on the thermal runaway assessment result, execute the corresponding response action; The first parameter experiences fewer value jumps due to device collisions than the second parameter.

2. The method according to claim 1, characterized in that, The response to determining that a collision has occurred in the device, based on a first parameter of the device and the change characteristics of a second parameter of the device within a first preset time period from the time of the collision, determines the thermal runaway judgment result of the device, including: In response to determining that a collision has occurred in the device, it is determined whether the third parameter of the device meets the preset thermal runaway judgment condition; If the thermal runaway judgment condition is not met, the thermal runaway judgment result of the device is determined based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the collision of the device. The third parameter experiences fewer value jumps due to device collisions than the second parameter.

3. The method according to claim 1, characterized in that, The method further includes: Within the first preset duration, at least one first sub-window of a second preset duration and at least one second sub-window of a third preset duration are divided, wherein the first preset duration is longer than the third preset duration and the third preset duration is longer than the second preset duration; Based on the fluctuation of the second parameter within the first sub-window, determine the first change characteristic; Based on the changing trend of the second parameter within the second sub-window, determine the second change characteristic; The variation characteristics of the second parameter include the first variation characteristics and / or the second variation characteristics.

4. The method according to claim 3, characterized in that, The step of determining the first change characteristic based on the fluctuation of the second parameter within the first sub-window includes: Within each of the first sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each first sub-window, an index characterizing the degree of dispersion of the direction of change of the second parameter within each first sub-window is determined. The first change feature is determined based on the respective indicators of each of the first sub-windows.

5. The method according to claim 3, characterized in that, The step of determining the second change feature based on the change trend of the second parameter within the second sub-window includes: Within each of the second sub-windows, multiple discrete sampled values ​​of the second parameter are obtained respectively; Based on the magnitude relationship of each adjacent sampled value within each second sub-window, an index representing the degree of convergence of the direction of change of the second parameter within each second sub-window is determined. The second change characteristic is determined based on the respective indicators of each of the second sub-windows.

6. The method according to claim 1, characterized in that, The step of determining the thermal runaway judgment result of the device based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision includes: The target judgment value is obtained by weighted summation of the change characteristics of the second parameter and the first parameter; Based on the target judgment value, the corresponding thermal runaway risk level is determined, and the thermal runaway risk level is used as the thermal runaway judgment result.

7. The method according to claim 6, characterized in that, The step of determining the corresponding thermal runaway risk level based on the target judgment value includes: If the target judgment value is greater than the first preset threshold, then the thermal runaway risk level is determined to be the first level; If the target judgment value is greater than the second preset threshold and less than or equal to the first preset threshold, then the thermal runaway risk level is determined to be the second level. If the target judgment value is less than or equal to the second preset threshold, then the thermal runaway risk level is determined to be level three; The degree of thermal runaway risk represented by the first level, the second level, and the third level decreases sequentially.

8. The method according to claim 7, characterized in that, The step of executing corresponding response actions based on the thermal runaway determination result includes: If the thermal runaway risk level is the first level, then the preset thermal runaway suppression strategy is executed; If the thermal runaway risk level is the second level, then the preset safety warning strategy is executed; If the thermal runaway risk level is the third level, then the corresponding event data is stored in the preset storage unit.

9. The method according to claim 1, characterized in that, The method further includes: The first preset duration is determined based on a preset duration reference value and the device acceleration at the time of the collision, wherein the first preset duration and the absolute value of the device acceleration are positively correlated.

10. The method according to claim 2, characterized in that, The method further includes: If the thermal runaway judgment condition is met, it is determined that the device has experienced thermal runaway, and a preset thermal runaway suppression strategy is executed.

11. The method according to any one of claims 2-9, characterized in that, The first parameter includes at least one of the following: the temperature change rate of the battery pack, the internal air pressure change rate of the battery pack, the state of charge change rate of the battery pack, and the internal resistance change rate of the battery pack. The second parameter includes at least one of the following: the cell voltage of the battery pack, and the insulation resistance of the battery pack; The third parameter includes at least one of the following: the internal air pressure of the battery pack, the temperature of the battery pack, the rate of change of the internal air pressure of the battery pack, and the rate of change of the temperature of the battery pack.

12. A thermal runaway handling device, characterized in that, include: The first determining module is used to determine the thermal runaway judgment result of the device in response to determining that a collision has occurred, based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision. The control module is used to execute corresponding response actions based on the thermal runaway judgment result; The first parameter experiences fewer value jumps due to device collisions than the second parameter.

13. The apparatus according to claim 12, characterized in that, The first determining module includes: The first determining submodule is used to determine whether the third parameter of the device meets the preset thermal runaway judgment condition in response to the determination that the device has collided. The second determining submodule is used to determine the thermal runaway judgment result of the device based on the first parameter of the device and the change characteristics of the second parameter of the device within a first preset time period from the time of the collision if the thermal runaway judgment condition is not met. The third parameter experiences fewer value jumps due to device collisions than the second parameter.

14. The apparatus according to claim 12, characterized in that, The device further includes: The segmentation module is used to segment at least one first sub-window with a second preset duration and at least one second sub-window with a third preset duration within the first preset duration, wherein the first preset duration is longer than the third preset duration and the third preset duration is longer than the second preset duration. The second determining module is used to determine the first change feature based on the fluctuation of the second parameter within the first sub-window; The third determining module is used to determine the second change feature based on the change trend of the second parameter in the second sub-window; The variation characteristics of the second parameter include the first variation characteristics and / or the second variation characteristics.

15. A thermal runaway handling device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to execute the executable instructions in the memory to implement the steps of the thermal runaway handling method according to any one of claims 1-11.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the thermal runaway handling method according to any one of claims 1-11.

17. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the steps of the thermal runaway handling method according to any one of claims 1-11.

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