Temperature management method, device and equipment and vehicle

Abstract

The invention provides a temperature management method, device and equipment and a vehicle, and the method comprises the steps: determining a target part in parts of the vehicle based on the working condition of the vehicle; in response to the fact that the temperature value of the target part is larger than a preset temperature threshold value, the current running state of a cooling system of the vehicle is maintained or adjusted according to the working condition of the vehicle and the duration when the temperature value is larger than the preset temperature threshold value, and the temperature of the target part is adjusted and controlled; by applying the temperature management method, unnecessary energy waste and mechanical abrasion generated by the cooling system can be reduced, the endurance mileage of the vehicle is increased, and the service life is prolonged; and the cooling requirement of the target part can be met, the cooling efficiency is improved, and therefore the vehicle using experience and satisfaction degree of a user are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a temperature management method, device, equipment and vehicle. Background Art

[0002] Thermal management technology is one of the core technologies of new energy vehicles and is closely related to the overall performance, energy efficiency and driving safety of the vehicle. Among them, the key components of new energy vehicles include drive motors and battery packs. When the vehicle is running or charging, the components will generate a lot of heat. In order to avoid heat accumulation and temperature increase, the cooling system is usually used to cool the components to ensure the performance of the components. However, the vehicle is affected by factors such as transient load changes, and some components will experience a sharp rise in temperature, which will return to normal temperature fluctuations after a short period of time. Although the temperature fluctuation is short-lived and will not damage the components, it can trigger the vehicle's temperature protection mechanism, activate the cooling system operation, increase the energy loss and aging wear of the cooling system, and affect user satisfaction with the vehicle. Summary of the invention

[0003] In view of this, the purpose of the present application is to propose a temperature management method, device, equipment and vehicle to solve the technical problems of excessive energy loss and relatively serious aging and wear of the cooling system in the related technology.

[0004] Based on the above objectives, the present application provides a temperature management method, comprising:

[0005] Determining a target component among the components of the vehicle based on the operating condition of the vehicle;

[0006] In response to the temperature value of the target component being greater than a preset temperature threshold, the current operating state of the cooling system of the vehicle is maintained or adjusted according to the operating conditions of the vehicle and the duration that the temperature value is greater than the preset temperature threshold to regulate the temperature of the target component.

[0007] Based on the same inventive concept, the present application also provides a temperature management device, including:

[0008] An acquisition and determination module is used to determine a target component among the components of the vehicle based on the working condition of the vehicle;

[0009] A response control module is used to maintain or adjust the current operating state of the cooling system of the vehicle in response to the temperature value of the target component being greater than a preset temperature threshold, according to the operating conditions of the vehicle and the duration that the temperature value is greater than the preset temperature threshold, so as to control the temperature of the target component.

[0010] Based on the same inventive concept, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method as described above when executing the computer program.

[0011] Based on the same inventive concept, the present application also provides a vehicle, comprising the electronic device as described above.

[0012] From the above, it can be seen that the temperature management method, device, equipment and vehicle provided by the present application, after the temperature management method determines the target component, can control the current state of the cooling system according to the working conditions of the vehicle, the comparison between the temperature value of the target component and the preset temperature threshold, and the duration of the temperature value greater than the preset temperature threshold, so as to reasonably manage the temperature of the target component without affecting the normal operation of the vehicle; when the temperature value of the target component is greater than the preset temperature threshold, the current state of the cooling system can be controlled according to the duration of the temperature fluctuation to reduce unnecessary energy waste and mechanical wear of the cooling system, which is beneficial to improve the vehicle's cruising range and extend the service life of the cooling system; it can also improve the cooling efficiency of the target component while meeting the cooling needs of the vehicle, thereby improving the user's vehicle experience and satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 is a flow chart of the temperature management method in this application;

[0015] Figure 2 This is a flow chart of a method for controlling a cooling system according to the duration of a temperature value being greater than a preset temperature threshold in the present application;

[0016] Figure 3 A flow chart of a method for determining a preset duration according to the working condition of a vehicle in this application;

[0017] Figure 4 A flow chart of a method for determining whether a target component is triggered in this application;

[0018] Figure 5 A flow chart of a method for obtaining a corrected temperature management curve in this application;

[0019] Figure 6It is a distribution diagram of the temperature management curves at different stages in this application;

[0020] Figure 7 It is a structural block diagram of the temperature management device in this application;

[0021] Figure 8 This is a structural block diagram of the electronic device in this application. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] In the modern automobile industry, especially for new energy vehicles, thermal management is a crucial technology in the vehicle field, which directly affects the overall performance, energy efficiency and driving safety of the vehicle. With the popularization of electric and hybrid vehicles, efficient thermal management of core components such as drive motors and battery packs is becoming more and more critical. When the vehicle is in the working stage, the components will also generate a lot of heat. If the generated heat is not managed properly, it may lead to a decline in component performance, shortened service life, reduced endurance, and even cause safety accidents in severe cases. Therefore, most vehicles are equipped with a cooling system that can cool the components during operation to ensure the overall performance and driving safety of the vehicle.

[0025] As far as the vehicle's cooling system is concerned, the complexity of the cooling system is mainly reflected in the precise control of the temperature rise of components on demand to keep them within the optimal operating temperature range; among them, the cooling system may include components such as a thermal management unit, a control valve, a water pump, and a fan. The thermal management unit can control the operating status of the water pump and the fan to achieve efficient cooling of the components to ensure that the components can operate stably; among them, the cooling system's thermal management strategy for components mostly relies on real-time detection of the target component temperature, and compares the temperature data obtained by acquisition modules such as temperature sensors with the preset temperature threshold, and then decides whether to take cooling measures based on the comparison structure.

[0026] However, in actual situations, affected by factors such as transient load changes in the vehicle, vehicle components may experience a brief but drastic temperature rise, and then quickly return to the normal temperature range. Since this temperature fluctuation is short-lived and quickly returns to a stable state after a brief change, it will not cause damage to the components. However, under the action of the vehicle's temperature protection mechanism, this temperature fluctuation can still trigger the vehicle's temperature protection mechanism, activate the cooling system and cool the components, such as using the water pump in the cooling system to liquid-cool the components, and / or using the fan to air-cool the components. If this happens frequently, it will not only increase the consumption of unnecessary energy in the cooling system and shorten the vehicle's cruising range, but may also accelerate the aging and wear of related mechanical components such as the water pump and fan in the cooling system, shorten the life of the cooling system, and thus affect the user's vehicle experience and satisfaction.

[0027] In summary, how to optimize the control strategy of the vehicle cooling system to cope with thermal events caused by transient loads, reduce unnecessary energy consumption and mechanical wear of the cooling system, and ensure the safety and reliability of the vehicle has become a huge challenge facing the current new energy vehicle industry; at the same time, designing a more intelligent and efficient temperature management method, device, equipment and vehicle will help to better adapt to the complex and changeable working environment, which is of great significance to improving the overall performance of new energy vehicles and the overall experience of users.

[0028] In view of this, if Figure 1 As shown, the present application provides a temperature management method, which can be executed by a vehicle controller; specifically, the temperature management method includes:

[0029] S100: determining a target component among the components of the vehicle based on the working condition of the vehicle;

[0030] In this step, the vehicle components may be components that play a key role in the operation phase under the working conditions of the vehicle, such as drive motors, battery packs, AC-DC converters, motor control modules, DC converter controllers, and intelligent driving controllers during the vehicle driving phase, or components during the vehicle charging phase, such as battery packs, on-board chargers, battery management systems, and inverters;

[0031] During specific implementation, the controller can determine the current operating condition of the vehicle, and determine the target components among the operating components of the vehicle based on the current operating condition of the vehicle, thereby reducing the complexity of component temperature management, narrowing the management scope of components, and facilitating efficient management of target components.

[0032] S200: In response to the temperature value of the target component being greater than a preset temperature threshold, maintaining or adjusting the current operating state of the vehicle's cooling system according to the vehicle's operating conditions and the duration that the temperature value is greater than the preset temperature threshold, so as to regulate the temperature of the target component.

[0033] In this step, the temperature value of the target component can be the temperature value of the selected operating component under the working condition of the vehicle, and the temperature value of the target component can be continuously or intermittently obtained by a temperature sensing component such as a temperature sensor; the preset temperature threshold can be one or more pre-set temperature standards to ensure that the target component operates in a stable state without being disturbed by heat. Exemplarily, the preset temperature threshold can be the maximum temperature allowed for the target component, or it can be used as an ideal operating temperature range. By monitoring the actual temperature value and comparing it with the actual temperature value, it is helpful to take reasonable thermal management strategies in time to prevent the target component from being degraded or damaged due to excessive temperature.

[0034] In specific implementation, the controller collects the temperature of the corresponding target component through the temperature sensor based on the working condition of the vehicle, and obtains the temperature value of the target component; thereafter, the controller can make a judgment based on the working condition of the vehicle and the obtained temperature value to determine how to control the current state of the cooling system; wherein, when the controller determines that the temperature value of the target component is less than the preset temperature threshold, the heat generated by the target component will not affect its normal operation, and the temperature of the target component meets the normal operation requirements of the vehicle; when the controller determines that the temperature value of the target component is greater than the preset temperature threshold, it is necessary to make further judgments on the target component, that is, according to the working condition of the vehicle and the duration of the temperature value greater than the preset temperature threshold, further judge whether the target component can operate stably and whether it needs to be cooled by the cooling system; wherein, when it is determined that the target component has a short-term temperature rise fluctuation, the duration is short and the rate of change is large, then the temperature of the target component in this process will not affect it. It does not cause interference to itself and does not need to be cooled, so the cooling system can maintain its current state to reduce unnecessary power consumption, which is beneficial to improving the vehicle's cruising range, reducing aging and wear of mechanical parts in the cooling system, and extending the life of the cooling system; when it is determined that the temperature fluctuation time of the target component is long, that is, the temperature continues to rise, the heat generated by the target component may cause harm to itself. At this time, the controller can control and adjust the current state of the vehicle's cooling system to cool and dissipate heat to the target component through the cooling system; illustratively, the duty cycle of the water pump and / or fan in the cooling system can be adjusted, and the target component and its duty cycle can be positively correlated, or the flow path and flow rate of the coolant can be adjusted by the control valve in the cooling system, and the target component can be cooled in time, thereby improving the heat dissipation efficiency under different working conditions and the rationality of the temperature management of the target component, and enhancing the overall performance of the target component, which is beneficial to improving the user's vehicle experience and satisfaction.

[0035] Specifically, Figure 1As shown, the controller is used as the execution subject, and the controller determines the working condition of the vehicle, and determines the target component among the components running in the vehicle according to the current working condition of the vehicle; then, the controller can obtain the temperature value of the target component through the temperature sensor, and judge the target component according to the working condition of the vehicle and the obtained temperature value, and judge whether the target component needs to be cooled; wherein, when the controller determines that the temperature value of the target component is less than the preset temperature threshold, the heat generated by the target component will not affect its normal operation; and when the controller determines that the temperature value of the target component is greater than the preset temperature threshold, it is necessary to further judge the target component, that is, to further judge whether the target component needs to be cooled according to the working condition of the vehicle and the duration of the temperature value being greater than the preset temperature threshold; wherein, when it is determined that the target component has a short If the temperature fluctuation of the target component is short-lived and has a large rate of change, the temperature of the target component in this process will not interfere with itself and does not need to be cooled. Therefore, the cooling system can maintain its current state to reduce unnecessary energy waste, which is beneficial to improving the vehicle's cruising range, reducing aging and wear of mechanical components in the cooling system, and extending the life of the cooling system. When it is determined that the temperature fluctuation time of the target component is long, that is, the temperature continues to rise, the heat generated by the target component may cause harm to itself. At this time, the controller can control and adjust the current state of the vehicle's cooling system to cool the target component in time through the cooling system, improve the heat dissipation efficiency under different working conditions and the rationality of the temperature management of the target component, and enhance the overall performance of the target component, which is beneficial to improving the user's car experience and satisfaction.

[0036] Therefore, after the temperature management method determines the target component, it can control the current state of the cooling system according to the working conditions of the vehicle, the comparison between the temperature value of the target component and the preset temperature threshold, and the duration that the temperature value is greater than the preset temperature threshold, and can reasonably manage the temperature of the target component without affecting the normal operation of the vehicle; when the temperature value of the target component is greater than the preset temperature threshold, the current state of the cooling system can be controlled according to the duration of the temperature fluctuation to reduce unnecessary energy waste and mechanical wear of the cooling system, which is beneficial to improve the vehicle's cruising range and extend the service life of the cooling system; it can also improve the cooling efficiency of the target component while meeting the vehicle's cooling needs, thereby improving the user's vehicle experience and satisfaction.

[0037] In some embodiments, Figure 2 As shown, in S200, the current operating state of the cooling system of the vehicle is maintained or adjusted according to the operating condition of the vehicle and the duration of the temperature value being greater than the preset temperature threshold, including:

[0038] S210: Determine, based on the operating condition of the vehicle, the duration for which the temperature value is greater than a preset temperature threshold;

[0039] In this step, after the controller determines that the temperature value of the target component is greater than the preset temperature threshold, it can obtain the duration of the target component's temperature value greater than the preset temperature threshold based on the vehicle's operating conditions, and then determine the comparison between the duration of the target component's temperature value greater than the preset temperature threshold and the preset duration according to the current vehicle's operating conditions, and control the current state of the cooling system based on the comparison result of the duration of the target component's temperature value greater than the preset temperature threshold and the preset duration, so as to achieve reasonable temperature control of the target component and reasonable allocation and application of energy.

[0040] S220: In response to determining that the duration is greater than a preset duration, adjusting a current operating state of a cooling system of the vehicle;

[0041] In this step, when the controller determines that the duration of the temperature value of the target component is greater than the preset duration, the temperature of the target component is high and the duration is long, so the accumulated heat is relatively large. The target component may be in continuous load operation and it is difficult to recover to a stable operating temperature in a short time; therefore, the current state of the cooling system can be adjusted to enable timely and efficient cooling of the target component, thereby effectively controlling the temperature of the target component and avoiding affecting the overall performance and operating effect of the target component.

[0042] Exemplarily, when the temperature value of the target component is greater than the preset temperature threshold for a duration greater than the preset duration, its duration can be positively correlated with the operating duty cycle of the cooling system, that is, the longer the duration greater than the preset temperature threshold, the greater the duty cycle of the cooling system, and the better the cooling effect, which will not be elaborated here.

[0043] S230: In response to determining that the duration is less than the preset duration, controlling the cooling system of the vehicle to maintain the current state.

[0044] In this step, when the controller determines that the duration of the temperature value of the target component is less than the preset duration, although the temperature of the target component is high at this time, its duration is short and the accumulated heat is less. Therefore, the target component may be under a short-term severe load and can be restored to a stable operating temperature in a short time without affecting the normal operation of the vehicle; therefore, the cooling system can be maintained in its current state to reduce unnecessary energy waste, which is beneficial to improve the vehicle's cruising range, reduce aging and wear of mechanical components in the cooling system, and extend the life of the cooling system.

[0045] In some embodiments, the vehicle operating condition includes a driving condition and a charging condition; the driving condition includes a starting state, a speed change state, a cruising state, and a parking state; the charging condition includes a fast charging state, a slow charging state, a disconnected charging state, and a stopped charging state;

[0046] It should be noted that the driving state of the vehicle may specifically include the following states:

[0047] The start state can be the process of the vehicle accelerating from a stationary state to a driving state. During this stage, the vehicle's drive motor needs to provide sufficient torque to overcome the stationary inertia so that the vehicle can start smoothly. At the same time, the start state also includes a series of initialization checks and preparations for the vehicle's battery management system and drive control system.

[0048] The speed change state can be an operating state formed by changing the driving speed or driving force capacity according to road conditions and driving requirements during the vehicle's driving process; in this state, gear shifting operations are required, and the output power and speed of the drive motor are adjusted to adapt to new driving conditions.

[0049] The cruising state can be that the vehicle is traveling at a constant speed. In this state, the vehicle is in a more economical operating mode, and the motor only needs to provide the power required to maintain the current speed. In addition, for vehicles with adaptive cruise control function, the distance to the vehicle in front can also be monitored through sensors such as radar, and the speed can be automatically adjusted to maintain a safe distance.

[0050] The parking state can be when the vehicle switches from dynamic to static, so that the vehicle stops and remains stationary. In this state, the vehicle's motor can be turned off to save energy; at the same time, the vehicle can also synchronously activate the parking brake system to prevent the vehicle from accidentally sliding.

[0051] The vehicle's charging status can specifically include the following states:

[0052] The fast charging state can be a working state in which the vehicle is quickly charged with a higher power current, which can replenish a large amount of electrical energy for the vehicle in a shorter period of time. It is suitable for emergency situations or long-distance replenishment. The fast charging state can use DC charging technology to directly charge the battery and reduce energy loss during the conversion process.

[0053] The slow charging state can be a charging state in which the vehicle is charged with a lower power current. The charging time is long, the damage to the health of the battery is small, and the aging of the battery is slowed down. Slow charging can use AC charging technology, and the on-board charger can convert AC power into DC power and then supply it to the vehicle's battery.

[0054] The charging interruption state may be a state in which the charging process is suddenly interrupted due to unexpected reasons (such as unplugging the charging plug, power grid failure, charging equipment failure, etc.); in the charging interruption state, the charging process is suspended until the problem is resolved and charging continues. The charging interruption may affect battery management and charging plans, so corresponding protection measures and reminder functions can be set in advance.

[0055] The charging suspension state can be a state in which charging is suspended manually or automatically by the system; car owners can choose to charge during periods when electricity prices are lower, or the battery management system can suspend charging after the battery reaches a specified charge level to protect battery health, which helps to optimize charging efficiency and control costs.

[0056] like Figure 3 As shown, with respect to S210, determining the duration of the temperature value being greater than the preset temperature threshold value includes:

[0057] S211: Determine the preset duration according to the vehicle condition;

[0058] In this step, after obtaining the vehicle condition, the controller can determine a preset duration based on the vehicle condition, so as to further judge the duration for which the temperature value of the target component is greater than the preset temperature threshold through the preset duration.

[0059] S212: In response to the vehicle being in a starting state, a speed change state, and a cruising state of a driving condition, and being in a slow charging state of a charging condition, the preset duration is a first preset duration;

[0060] In this step, when the controller determines that the vehicle is in the starting state, speed change state and cruising state of the driving condition, and is in one of the slow charging states of the charging condition, the operating state of the target component corresponding to the current working condition of the vehicle is prone to drastic changes, and therefore it is more likely to cause the temperature value of the target component to fluctuate briefly and significantly. At this time, the first preset time length can be used as the preset duration time, so as to compare and judge the first preset time length with the duration time that the temperature value of the target component is greater than the preset temperature threshold, which is beneficial to improve the accuracy of the judgment of the duration time that the temperature value is greater than the preset temperature threshold, and reduce the energy consumed by the cooling system during the cooling process.

[0061] Exemplarily, when the vehicle is in the starting state, speed change state and cruising state of the driving condition, the target component may be the drive motor. At this time, the drive motor may experience a brief temperature fluctuation due to violently stepping on the accelerator pedal or driving the ignition switch.

[0062] For example, when the vehicle is in a slow charging state of the charging condition, the target component may be a battery pack. At this time, the unstable charging current may cause the battery pack to experience a brief temperature fluctuation.

[0063] S213: In response to the vehicle being in a fast charging state of the charging condition, the temperature value is greater than the preset duration for a second preset duration, wherein the second preset duration is less than the first preset duration and greater than zero;

[0064] In this step, when the controller determines that the vehicle is in the fast charging state of the charging condition, the operating load of the corresponding target component in the vehicle is large, the heat generation rate is fast and it is easy to cause the temperature of the target component to rise; at this time, the second preset time length can be used as the preset duration, and the second preset time length is compared with the duration during which the temperature value of the target component is greater than the preset temperature threshold. This is beneficial for the cooling system to continuously cool the target component under the corresponding operating conditions, slow down the heating rate of the target component, reduce the impact of high temperature on the performance of the target component, and help maintain a good operating environment.

[0065] In addition, with regard to charging conditions, the first preset time length can be used to determine the cooling requirements of target components of the vehicle in a slow charging state, and the second preset time length can be used to determine the cooling requirements of target components of the vehicle in a fast charging state. Since the charging power in the fast charging state is greater than the charging power in the slow charging state, the temperature change rate of the target components in the fast charging state is greater than the temperature change rate in the slow charging state; therefore, by setting the second preset time length to be less than the first preset time length and making the second preset time length greater than zero, the strictness of the judgment of the temperature value of the target components in the fast charging state can be improved, so that the cooling system can adapt to the temperature fluctuation process of the target components in the fast charging state, and improve the energy utilization efficiency of the cooling system under different charging conditions.

[0066] Exemplarily, when the vehicle is in a fast charging state of the charging condition, the target component may be a battery pack. At this time, the unstable charging current may cause the battery pack to experience a brief temperature fluctuation.

[0067] S214: In response to the vehicle being in a parking state of a driving condition, and being in one of a charging disconnection state and a charging stop state of a charging condition, the preset duration is zero.

[0068] In this step, when the controller determines that the vehicle is in a parked state of a driving condition, and is in one of a disconnected charging state and a stopped charging state of a charging condition, the target component corresponding to the vehicle's condition stops running and no longer generates heat, and the temperature of the target component gradually decreases; wherein, for the target component in the parked state of a driving condition, and in one of a disconnected charging state and a stopped charging state of a charging condition, its temperature value is greater than a preset temperature value, and the duration of the temperature value being greater than the preset temperature threshold is greater than zero, then the preset duration is set to zero, and the vehicle's cooling system can be controlled to cool the target component whose temperature value is greater than the preset temperature value under the current condition, thereby accelerating the cooling speed of the target component to avoid damage due to slow cooling of the target component, until the temperature value of the target component is cooled to below the preset temperature threshold.

[0069] Exemplarily, when the vehicle is in a parked state during driving, the target component may be a stopped drive motor; when the temperature of the drive motor is greater than a preset temperature threshold, the temperature of the drive motor may be cooled to below the preset temperature threshold by a cooling system.

[0070] Exemplarily, when the vehicle is in one of the off-charging state and the stopped-charging state of the charging condition, the target component may be a battery pack, at which time the battery pack stops outputting current. When the temperature value of the battery pack is greater than a preset temperature threshold, the temperature of the battery pack may be cooled to below the preset temperature threshold through the cooling system.

[0071] In some embodiments, in response to determining that the duration is less than a preset duration, the following steps include:

[0072] S2301: Determine the triggering status of the associated components corresponding to the target component;

[0073] In this step, when the controller determines that the temperature value of the target component is greater than the preset temperature threshold, and the duration of the temperature value being greater than the preset temperature threshold is less than the preset duration, it can be considered that the target component has a brief temperature fluctuation under the current working conditions, so the cooling system is controlled to cool it to reduce the power consumption and wear of the cooling system; however, if the target component has an operational failure, it may also cause a brief temperature fluctuation, and at this time the cooling system is required to cool the target component to prevent the target component from being damaged further; therefore, in order to improve the accuracy of the judgment of the cause of the temperature fluctuation of the target component, the controller can be used to obtain the trigger status of the associated components corresponding to the target component, and determine whether the target component has a brief temperature fluctuation caused by severe load based on the trigger status of the associated components.

[0074] For example, when the vehicle is in a driving condition, the drive motor can be taken as the target component, and the ignition switch or the accelerator pedal can be taken as the associated component; wherein, when the vehicle is started by using the ignition switch or the accelerator pedal is stepped on to accelerate, the operating load of the drive motor can change significantly in a short period of time, causing its temperature to rise briefly, and then quickly return to a stable operating temperature.

[0075] For example, when the vehicle is in a charging condition, the battery pack can be used as the target component, and the battery management system can be used as an associated component. The battery management system can regulate the fluctuating current during the charging process to achieve a steady current effect in a short period of time. At this time, the load of the battery pack changes significantly in a short period of time, causing its temperature to rise briefly, and then it can quickly drop back to a stable operating temperature.

[0076] S2302: In response to the associated components receiving the corresponding trigger request, controlling the cooling system of the vehicle to maintain the current state.

[0077] In this step, when the controller determines that the associated component has received the corresponding trigger request, that is, the brief temperature fluctuation of the target component is caused by factors such as the drastic transformation or adaptability of the associated component, the brief temperature fluctuation generated by the target component will not interfere with it. Therefore, the vehicle's cooling system can be controlled to maintain the current state to reduce the energy consumption of the cooling system and reduce the wear of its own components.

[0078] In some embodiments, Figure 4 As shown, in S100, determining a target component among the components of the vehicle based on the working condition of the vehicle includes:

[0079] Vehicle components operating under the vehicle's operating conditions whose heat generation power is greater than or equal to a preset power are determined as target components.

[0080] Among them, the preset heating power of the components can be the maximum heating power or optimal heating power allowed by the vehicle components; in specific implementation, when the vehicle is in a driving state or a charging state, the components corresponding to the working conditions of the vehicle can generate heat during operation; among them, there are some components with higher temperatures and obvious temperature fluctuations, and there are also some components with lower temperatures and obvious temperature fluctuations; therefore, in order to narrow the management scope of vehicle components, reduce the management burden of the controller, and achieve efficient management of target components; the controller can determine the components with a heating power greater than or equal to the preset power among the components running under the working conditions of the vehicle as target components, that is, the components with higher temperatures and obvious temperature fluctuations are managed separately as target components, which is conducive to reducing the energy waste of the cooling system and is also conducive to controlling the temperature of the target components.

[0081] In some embodiments, Figure 5 and Figure 6 As shown, the temperature management method also includes:

[0082] S310: constructing an initial temperature management curve based on the temperature value of the target component;

[0083] In this step, the temperature management curve can be a temperature change guidance curve constructed in the thermal management unit of the cooling system to ensure that the target components (such as battery packs and drive motors, etc.) operate stably within an appropriate temperature range. It is used to reflect the degree of change of the temperature value of the target component in different time periods, so as to control the cooling system to implement a regular cooling plan for the target component according to the temperature management curve; in specific implementation, the controller can record the temperature value of the target component obtained, and construct an initial temperature management curve based on the obtained temperature value.

[0084] S320: removing temperature values ​​greater than a preset temperature threshold and lasting for less than a preset time from the initial temperature management curve;

[0085] In this step, when the temperature value of the target component is greater than the preset temperature threshold and the duration is less than the preset duration, although the target component experiences a temperature rise fluctuation, the time is short and there is no need to change the current state of the cooling system. Therefore, it is not suitable for adjusting the current operating state of the cooling system. The temperature management curve, as an operating rule for controlling the cooling system, needs to control the current operating state of the cooling system based on the changes in the temperature values ​​in the temperature curve so that the target component can quickly return to a stable temperature range. Therefore, in a specific implementation, the temperature values ​​that are greater than the preset temperature threshold and last less than the preset time can be removed from the initial temperature management curve to obtain a relatively accurate temperature management curve to improve the accuracy of cooling system control.

[0086] S330: Correcting the temperature management curve based on a preset correction algorithm to obtain a corrected temperature management curve.

[0087] In this step, the preset correction algorithm can adopt BP neural network (Back Propagation Neural Network); by using the preset correction algorithm, the temperature management curve can be refined and corrected, effectively improving the prediction accuracy, making the corrected temperature management curve closer to the actual trend, thereby playing an important role in thermal management units; therefore, the corrected temperature management curve obtained after correction by the preset algorithm has better accuracy and more significant temperature management effect on the target components.

[0088] In some embodiments, the temperature management method further includes: in response to not obtaining a temperature value of the target component after obtaining the corrected temperature management curve, adjusting a current operating state of the vehicle's cooling system based on the corrected temperature management curve.

[0089] Specifically, after using the controller to obtain the corrected temperature management curve, the controller can continuously obtain the temperature value of the target component and regulate the cooling system according to the acquisition of the temperature value of the target component; when the controller does not obtain the temperature value of the target component, this indicates that the temperature sensor used to collect temperature values ​​in the vehicle is faulty, which makes it impossible to judge whether there is a short-term temperature fluctuation in the target component based on the temperature value of the target component and the duration of the temperature value being greater than the preset temperature threshold. It is not only difficult to control the cooling degree of the target component by the cooling system, but also difficult to change the energy consumption of the cooling system. Therefore, in the specific implementation, since the corrected temperature management curve has a higher accuracy, the controller can adjust the current operating state of the vehicle's cooling system according to the corrected temperature management curve, which can make up for the difficulty of the cooling system in effectively controlling the temperature of the target component when the vehicle is in working condition, and is also beneficial to controlling the energy consumption of the cooling system.

[0090] In addition, after using the controller to obtain the corrected temperature management curve, if the temperature value of the target component can be obtained, a new corrected temperature management curve can be determined based on the temperature of the target component and the preset correction algorithm. The twice obtained temperature management curves are trained and integrated according to the preset correction algorithm to obtain an integrated temperature management curve. Compared with the corrected temperature management curve, the integrated temperature management curve is more accurate and more conducive to achieving precise control of the cooling system.

[0091] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the method.

[0092] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0093] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a temperature management device.

[0094] refer to Figure 7 , temperature management device, including:

[0095] An acquisition and determination module 10 is used to determine a target component among the components of the vehicle based on the working condition of the vehicle;

[0096] The response control module 20 is used to respond to the temperature value of the target component being greater than a preset temperature threshold, and maintain or adjust the current operating state of the vehicle's cooling system according to the vehicle's operating conditions and the duration of the temperature value being greater than the preset temperature threshold, so as to control the temperature of the target component.

[0097] like Figure 7 As shown, the temperature management device provided by the present application includes an acquisition determination module and a response regulation module; specifically, the acquisition determination module can determine the target component of the vehicle according to the working condition of the vehicle and under the current working condition, and obtain the temperature value of the target component; thereafter, the acquired temperature value can be sent to the response regulation module; the response regulation module receives the temperature value of the target component sent by the determination module; after the response regulation module determines that the temperature value of the target component is greater than the preset temperature threshold, the duration of the temperature value being greater than the preset temperature threshold can be obtained, the response regulation module further judges the duration of the temperature value being greater than the preset temperature threshold, judges whether the target component currently needs real-time cooling, and controls the cooling system of the vehicle to maintain or adjust the current operating state according to the judgment result, thereby realizing the management of the temperature of the target component.

[0098] Therefore, by applying this temperature management device, unnecessary energy waste and mechanical wear of the vehicle's cooling system can be reduced, the vehicle's cruising range can be improved, the service life of the cooling system can be extended, and the vehicle's cooling needs can be met, the cooling effect on components can be optimized, and the cooling efficiency can be improved, thereby improving the user's vehicle experience and satisfaction.

[0099] For the convenience of description, the above device is described in terms of functions divided into various modules. Of course, when implementing the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0100] The device of the above embodiment is used to implement the corresponding temperature management method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0101] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the temperature management method described in any of the above embodiments is implemented.

[0102] Figure 8A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0103] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0104] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0105] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0106] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0107] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0108] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0109] The electronic device of the above embodiment is used to implement the corresponding temperature management method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0110] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the temperature management method described in any of the above embodiments.

[0111] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0112] The computer instructions stored in the storage medium of the above embodiments are used to enable the computer to execute the temperature management method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0113] Based on the same concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer program product, including computer program instructions. When the computer program instructions are run on a computer, the computer executes the method described in any of the above embodiments, which has the beneficial effects of the corresponding method embodiments and will not be repeated here.

[0114] It is understandable that before using the technical solutions of each embodiment of the present application, the type, scope of use, usage scenarios, etc. of the personal information involved will be informed to the user in an appropriate manner, and the user's authorization will be obtained.

[0115] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly remind the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can independently choose whether to provide personal information to the electronic device, application, server, storage medium or other software or hardware that performs the operation of the technical solution of the present application according to the prompt message.

[0116] As an optional but non-limiting implementation, in response to receiving the user's active request, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0117] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation method of this application. Other methods that meet relevant laws and regulations may also be applied to the implementation method of this application.

[0118] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0119] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0120] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0121] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A temperature management method, characterized in that: include: Determining a target component among the components of the vehicle based on the operating condition of the vehicle; In response to the temperature value of the target component being greater than a preset temperature threshold, the current operating state of the cooling system of the vehicle is maintained or adjusted according to the operating conditions of the vehicle and the duration that the temperature value is greater than the preset temperature threshold to regulate the temperature of the target component.

2. The temperature management method according to claim 1, characterized in that: The maintaining or adjusting the current operating state of the cooling system of the vehicle according to the operating condition of the vehicle and the duration of the temperature value being greater than the preset temperature threshold value includes: Based on the operating condition of the vehicle, determining a duration for which the temperature value is greater than the preset temperature threshold; In response to determining that the duration is greater than a preset duration, adjusting a current operating state of a cooling system of the vehicle; In response to determining that the duration is less than a preset duration, controlling the cooling system of the vehicle to maintain a current state.

3. The temperature management method according to claim 2, characterized in that: The vehicle operating conditions include driving conditions and charging conditions; the driving conditions include starting state, speed change state, cruising state and parking state, and the charging conditions include fast charging state, slow charging state, disconnected charging state and stopped charging state; The determining of the duration of time during which the temperature value is greater than the preset temperature threshold value comprises: Determining the preset duration according to the vehicle condition; In response to the vehicle being in a starting state, a speed changing state, and a cruising state of a driving condition, and being in a slow charging state of a charging condition, the preset duration is a first preset duration; In response to the vehicle being in a fast charging state of the charging condition, the temperature value is greater than the preset duration for a second preset duration, wherein the second preset duration is less than the first preset duration; In response to the vehicle being in a parking state of a driving condition, and being in one of a charging disconnection state and a charging stop state of a charging condition, the preset duration is zero.

4. The temperature management method according to claim 2, characterized in that: In response to determining that the duration is less than a preset duration, the method further comprises: Determining a triggering condition of an associated component corresponding to the target component; In response to the associated component receiving the corresponding trigger request, the cooling system of the vehicle is controlled to maintain a current state.

5. The temperature management method according to claim 2, characterized in that: The step of determining a target component among the components of the vehicle based on the working condition of the vehicle includes: Vehicle components operating under the vehicle's operating conditions whose heat generation power is greater than or equal to a preset power are determined as target components.

6. The temperature management method according to claim 2, characterized in that: Also includes: constructing an initial temperature management curve based on the temperature value of the target component; Remove the temperature value greater than the preset temperature threshold and lasting for less than the preset time in the initial temperature management curve; The temperature management curve is corrected based on a preset correction algorithm to obtain a corrected temperature management curve.

7. The temperature management method according to claim 6, characterized in that: Later also includes: In response to not acquiring the temperature value of the target component after obtaining the modified temperature management curve, adjusting a current operating state of the cooling system of the vehicle based on the modified temperature management curve.

8. A temperature management device, characterized in that: include: An acquisition and determination module is used to determine a target component among the components of the vehicle based on the working condition of the vehicle; A response control module is used to maintain or adjust the current operating state of the cooling system of the vehicle in response to the temperature value of the target component being greater than a preset temperature threshold, according to the operating conditions of the vehicle and the duration that the temperature value is greater than the preset temperature threshold, so as to control the temperature of the target component.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

10. A vehicle, characterized in that: Comprising the electronic device as claimed in claim 9.

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