CN112114603A - Control method and device for thermal management, vehicle and storage medium - Google Patents
Control method and device for thermal management, vehicle and storage medium Download PDFInfo
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- CN112114603A CN112114603A CN202010782053.9A CN202010782053A CN112114603A CN 112114603 A CN112114603 A CN 112114603A CN 202010782053 A CN202010782053 A CN 202010782053A CN 112114603 A CN112114603 A CN 112114603A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/32—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature with provision for adjustment of the effect of the auxiliary heating device, e.g. a function of time
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The application discloses a control method and a control device for thermal management, a vehicle and a computer readable storage medium. The control method is used for a vehicle, and comprises the following steps: under the condition that the working temperature of the vehicle component is in a preset temperature range, calculating the real-time average power of the vehicle component within a preset time length; reducing the upper limit value of the preset temperature range under the condition that the real-time average power is larger than the previously recorded average power; increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the previously recorded average power; and controlling the vehicle cooling system to cool the vehicle component when the working temperature of the vehicle component is greater than the upper limit value of the preset temperature range. According to the method and the device, the upper limit value of the preset temperature range is updated by comparing the acquisition of the real-time average power with the average power recorded in advance, so that the intervention opportunity of the cooling system can adapt to the heat generated by the vehicle parts, and the overall energy consumption and/or the endurance mileage performance of the vehicle are optimized on the premise of ensuring the cooling function and the performance requirement.
Description
Technical Field
The present application relates to the field of vehicle thermal management technologies, and in particular, to a control method and a control device for thermal management, a vehicle, and a computer-readable storage medium.
Background
In the related art, parts on a vehicle have a proper working temperature range with a fixed range according to manufacturing materials, operation modes and the like, and if the proper temperature range is exceeded, irreversible damage to the parts and the whole vehicle range is possible. In order to ensure that all parts and the whole vehicle can not exceed a proper temperature area under different working conditions all the time, the modern vehicle is provided with a thermal management system. The thermal management system has great significance for the vehicle, particularly for new energy electric vehicles, parts such as a power battery, a driving motor, a charging and distributing unit, a high-low voltage conversion module and the like of the new energy electric vehicle have a narrower proper working temperature range relative to a traditional internal combustion locomotive, and from the viewpoint, the new energy electric vehicle has relatively higher requirements for the thermal management system carried by the new energy electric vehicle; meanwhile, excessive use of the thermal management system can ensure proper working temperature, but can affect the energy consumption and the endurance mileage of the whole vehicle, which can also greatly affect the performance and competitiveness of the electric vehicle. Accordingly, there is a need to provide a solution for thermal management cooling control to account for the heat generated by vehicle components.
Disclosure of Invention
The embodiment of the application provides a control method, a control device, a vehicle and a computer readable storage medium for thermal management.
The control method for thermal management according to the embodiment of the present application may be used for a vehicle, and the control method for thermal management includes: under the condition that the working temperature of the vehicle component is in a preset temperature range, calculating the real-time average power of the vehicle component within a preset time length; reducing the upper limit value of the preset temperature range under the condition that the real-time average power is greater than the previously recorded average power; increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the prior recorded average power; and when the working temperature of the vehicle component is greater than the upper limit value of the preset temperature range, controlling a cooling system of the vehicle to cool the vehicle component.
In some embodiments, calculating the real-time average power of the vehicle component over a preset time period comprises: integrating the real-time power of the vehicle component over time; and after the time reaches the preset time length, calculating the real-time average power of the vehicle component according to the integration result and the preset time length.
In some embodiments, the control method of thermal management comprises: acquiring real-time working efficiency of the vehicle component; compensating the real-time average power according to the real-time working efficiency of the vehicle component.
In some embodiments, obtaining the real-time work efficiency of the vehicle component comprises: collecting electrical signal parameters of the vehicle component; and acquiring the real-time working efficiency of the vehicle component according to the corresponding relation between the parameters and the working efficiency and the electric signal parameters.
In some embodiments, compensating the real-time average power based on the real-time operating efficiency of the vehicle component includes: under the condition that the real-time working efficiency of the vehicle component is greater than the working efficiency corresponding to the previously recorded average power, performing reduction compensation on the real-time average power; and under the condition that the real-time working efficiency of the vehicle part is smaller than the working efficiency corresponding to the prior recorded average power, increasing and compensating the real-time average power.
In certain embodiments, the cooling system liquid-cooled and/or air-cooled the vehicle component.
In some embodiments, the control method of thermal management comprises: updating the previously recorded average power with the real time average power.
The control device for thermal management of an embodiment of the present application includes a calculation module, a regulation module, and a control module. The calculation module is used for calculating the real-time average power of the vehicle component within a preset time length under the condition that the working temperature of the vehicle component is within a preset temperature range; the adjusting module is used for reducing the upper limit value of the preset temperature range under the condition that the real-time average power is larger than the prior recorded average power, and increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the prior recorded average power; the control module is used for controlling a cooling system of the vehicle to cool the vehicle component when the working temperature of the vehicle component is larger than the upper limit value of the preset temperature range.
A vehicle according to an embodiment of the present application includes the thermal management control device according to any one of the above embodiments.
The computer-readable storage medium of the embodiments of the present application has stored thereon a computer program that, when executed by a processor, implements the control method of thermal management of any of the embodiments described above.
The control method, the control device, the vehicle and the computer-readable storage medium for thermal management in the embodiments of the present application update the upper limit value of the preset temperature range by collecting the real-time average power and comparing the real-time average power with the previously recorded average power, so that the intervention time of the cooling system can adapt to the heat generated by the vehicle components, and the overall energy consumption and/or the mileage performance of the vehicle is optimized on the premise of ensuring the cooling function and the performance requirement.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic illustration of a vehicle according to an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram of a control method for thermal management according to an embodiment of the present application;
FIG. 3 is a schematic view of a control device for thermal management according to an embodiment of the present application;
fig. 4 to 8 are schematic flow charts of a control method of thermal management according to an embodiment of the present application;
FIG. 9 is a schematic view of an electronic device of an embodiment of the present application;
fig. 10 is a schematic connection diagram of an electronic device and a computer-readable storage medium according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
Referring to fig. 1 and fig. 2 together, a control method for thermal management according to an embodiment of the present application may be applied to a vehicle 100, where the vehicle 100 includes a control device 10 for thermal management, and the control method for thermal management includes:
01: under the condition that the working temperature of the vehicle component is within a preset temperature range, calculating the real-time average power of the vehicle component within a preset time length;
02: reducing the upper limit value of the preset temperature range under the condition that the real-time average power is larger than the previously recorded average power;
03: increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the previously recorded average power;
04: and controlling a cooling system of the vehicle to cool the vehicle component when the working temperature of the vehicle component is greater than the upper limit value of the preset temperature range.
Referring to fig. 3, a control device 10 for thermal management according to an embodiment of the present application includes a calculation module 12, a regulation module 14, and a control module 16. The control method for thermal management according to the embodiment of the present application may be implemented by the control apparatus 10 for thermal management according to the embodiment of the present application, wherein step 01 may be implemented by the computing module 12, both step 02 and step 03 may be implemented by the adjusting module 14, and step 04 may be implemented by the control module 16, that is, the computing module 12 is configured to compute the real-time average power of the vehicle component within a preset time period when the operating temperature of the vehicle component is within a preset temperature range. The adjusting module 14 is configured to decrease the upper limit value of the preset temperature range when the real-time average power is greater than the previously recorded average power; and an upper limit value for reducing the preset temperature range when the real-time average power is greater than the previously recorded average power. The control module 16 is configured to control the cooling system of the vehicle 100 to cool the vehicle component when the operating temperature of the vehicle component is greater than the upper limit of the preset temperature range.
In certain embodiments, the vehicle 100 may also include a thermal management system and vehicle components. It is worth mentioning that the vehicle component may be a power battery, a driving motor, a charging and distribution unit, a high-low voltage conversion module, and the like. According to different manufacturing materials, operation modes and the like, each vehicle component has a fixed-range proper working temperature range, namely a preset temperature range, and in order to ensure that each vehicle component can not exceed the proper temperature range all the time under different working conditions, the vehicle 100 is provided with a thermal management system. The thermal management system may include a cooling system that may cool the vehicle component when the temperature of the vehicle component reaches a set temperature.
In the related art, a common control method of thermal management is to set different trigger temperatures for different vehicle components, for example; the vehicle component can be a power battery, and when the temperature of the power battery reaches a set temperature, a heating or cooling device of the thermal management system is triggered to work to heat or cool the power battery. The control method for thermal management is a hysteresis type control method, although the control method is simple and widely used and is easy to implement, due to the hysteresis characteristic of the control method, when the working condition of the vehicle component is changed severely and frequently, the control method usually cannot carry out effective matching control, and a proper temperature interval is exceeded, and if the working condition of the vehicle component is exceeded, the vehicle component and the vehicle can be damaged irreversibly.
In the related art, another control method for thermal management is a more complex prospective closed-loop control logic, that is, the heating value of a vehicle component is estimated, and the opening and closing and the working strength of a thermal management system are controlled based on the estimated heating value and the current temperature of the vehicle component. Although the control method of the thermal management avoids the disadvantage of hysteresis, the control method needs detailed and accurate design and real-time operation of the physical model, has relatively higher requirements on the analysis design of the physical model and the requirement on computing resources in the operation process, and has generally lower universality and portability and high cost, and can ensure proper working temperature but can influence the energy consumption and the endurance mileage of the whole vehicle.
According to the control method for the thermal management, the upper limit value of the preset temperature range is updated by collecting the real-time average power and comparing the real-time average power with the previously recorded average power, so that the intervention time of the cooling system can adapt to the heat generated by the vehicle components, and the overall energy consumption and/or the mileage performance of the vehicle 100 is optimized on the premise of ensuring the cooling function and the performance requirement.
Specifically, the preset temperature ranges of the vehicle components may be different, and the preset temperature ranges of the vehicle components may be preset according to electrical parameters of the vehicle components, and when the vehicle components are in the preset temperature ranges, the vehicle components may normally operate. The preset temperature range of each vehicle component can also be adjusted after comparing the real-time average power of the vehicle component with the previously recorded average power, and the cooling system can adjust the intervention time according to the upper limit value of the adjusted preset temperature range of the vehicle component. For example: the vehicle component may be a battery cell, and the preset temperature range of the battery cell may be 0-30 ℃ according to the characteristics of the battery cell, wherein 30 ℃ is an upper limit value of the preset temperature range. The preset time can be set to 5 minutes, and under the condition that the working temperature of the battery cell is in the preset temperature range, namely 0-30 ℃, the real-time average power of the battery cell in 5 minutes is calculated. And if the real-time average power of the battery electric core is larger than the recorded average power, reducing the upper limit value of the preset temperature range. The size of the upper limit value of the preset temperature range can be reduced according to the actual situation of the increase of the real-time average power, and the upper limit value of 30 ℃ can be adjusted to 29 ℃, 28 ℃, 27 ℃ and the like, so that a cooling system can be earlier involved in cooling the battery cell, and the battery cell is prevented from being over-heated under the condition that the real-time average power is larger than the recorded average power; and if the real-time average power is smaller than the previously recorded average power, increasing the upper limit value of the preset temperature range. The size of the upper limit value of the preset temperature range can be increased according to the actual situation of the reduction of the real-time average power, and the upper limit value of 30 ℃ can be adjusted to 31 ℃, 32 ℃, 33 ℃ and the like, so that the cooling system can be started later on the premise of ensuring that the battery cell is not over-temperature, the energy consumption of the cooling system is saved, and the energy consumption and the driving range of the vehicle 100 are optimized correspondingly. In one example, in a case where the real-time average power of the battery cell is the same as the previously recorded average power of the battery cell, the upper limit value of the preset temperature range is not changed, and thus the preset temperature range of the battery cell may be kept unchanged. It should be noted that the above-mentioned examples and specific numerical values are provided for convenience of describing the implementation of the present application, and should not be construed as limiting the scope of the present application. Additionally, the vehicle 100 includes, but is not limited to, a fuel-powered vehicle, a pure electric vehicle, a hybrid vehicle, an extended range electric vehicle, a hydrogen-powered vehicle, and the like.
Referring to fig. 4, in some embodiments, step 01 includes:
012: integrating the real-time power of the vehicle component over time;
014: and after the time reaches the preset time length, calculating the real-time average power of the vehicle component according to the integration result and the preset time length.
In certain embodiments, both steps 012 and 014 may be implemented by the calculation module 12, that is, the calculation module 12 is configured to integrate the real-time power of the vehicle component over time; and after the time reaches the preset time length, calculating the real-time average power of the vehicle component according to the integration result and the preset time length.
Specifically, the real-time power of the vehicle component can be obtained through conventional system design and communication matrix information, and the real-time power of each vehicle component can be included in the conventional system design and communication matrix information, and the information such as voltage and current can also be included in the conventional system design and communication matrix information, so that the real-time power of the vehicle component can be directly or indirectly obtained. The real-time power of the vehicle component is then integrated over time, which may be a preset time period such as 3 minutes, 5 minutes, 7 minutes, etc., and is not limited herein. And calculating the real-time average power of the vehicle component according to the integration result and the preset time length after the time reaches the preset time length, wherein in some embodiments, the real-time average power of the vehicle component in the preset time length can be accurately obtained by dividing the integration result by the preset time length. Through the collection of the real-time average power, the real-time working state of the vehicle component is convenient to know, and the upper limit value of the preset temperature range can be updated in time.
Referring to fig. 5, in some embodiments, a method for controlling thermal management includes:
05: acquiring real-time working efficiency of vehicle components;
06: the real-time average power is compensated for based on real-time operating efficiency of the vehicle component.
In certain embodiments, step 05 may be implemented by the calculation module 12 and step 06 may be implemented by the adjustment module 14. That is, the computing module 12 is configured to obtain real-time operating efficiencies of the vehicle components. The adjustment module 14 is configured to compensate the real-time average power based on real-time operating efficiency of the vehicle component.
Specifically, the real-time working efficiency of the vehicle component can be obtained through formula calculation, and if the real-time working efficiency is higher, the heat generated by the vehicle component is less; the lower the real-time operating efficiency, the more heat the vehicle components generate. In one example, the vehicle component may be a power battery, and the real-time operating efficiency of the power battery may be 75%, meaning that 25% of the energy is converted to heat; if the real-time working efficiency of the power battery is 80%, 20% of energy is converted into heat energy. The real-time working efficiency of the vehicle component is obtained, the heating condition of the vehicle component can be indirectly analyzed through the real-time working efficiency of the vehicle component, the real-time average power is compensated according to the real-time working efficiency of the vehicle component, and the temperature point of the cooling system intervening start can be more accurately calculated, so that the energy consumption of the cooling system is saved, and the energy consumption and the driving range of the vehicle 100 are correspondingly optimized. Steps 05 and 06 may be performed between steps 01 and 02.
Referring to fig. 6, in some embodiments, step 05 includes:
052: collecting electrical signal parameters of vehicle components;
054: and acquiring the real-time working efficiency of the vehicle component according to the corresponding relation between the parameters and the working efficiency and the electric signal parameters.
In certain embodiments, both steps 052 and 054 may be implemented by the computing module 12, that is, the computing module 12 is used to acquire electrical signal parameters of the vehicle component; and acquiring the real-time working efficiency of the vehicle component according to the corresponding relation between the parameters and the working efficiency and the electric signal parameters.
Specifically, the electrical signal parameters of the vehicle component may refer to the operating voltage, current and design parameters of the vehicle component itself under the current operating condition. In some embodiments, a look-up table of vehicle component parameters and operating efficiencies may be set, for example, the vehicle component may be a drive motor, and in the look-up table of vehicle component parameters and operating efficiency values, the drive motor has an operating efficiency of 75% at a 12V operating voltage; the working efficiency of the driving motor is 80% under the working voltage of 13.5V, and when the working voltage of the driving motor is 12V, the corresponding working efficiency can be obtained by looking up the table to be 75%. Therefore, the real-time working efficiency of the vehicle component is obtained according to the corresponding relation between the parameters and the working efficiency and the electric signal parameters. It is worth mentioning that the table look-up of the vehicle component parameters and the work efficiency values can be calibrated and optimized according to the actual situation, so as to ensure the accuracy of the data.
Referring to fig. 7, in some embodiments, step 06 includes:
062: under the condition that the real-time working efficiency of the vehicle part is greater than the working efficiency corresponding to the recorded average power in advance, reducing and compensating the real-time average power;
064: and under the condition that the real-time working efficiency of the vehicle part is less than the working efficiency corresponding to the recorded average power, increasing and compensating the real-time average power.
In some embodiments, steps 062 and 064 may both be implemented by the adjustment module 14, that is, the adjustment module 14 is configured to compensate for a decrease in the real-time average power if the real-time operating efficiency of the vehicle component is greater than the operating efficiency corresponding to the previously recorded average power; and under the condition that the real-time working efficiency of the vehicle part is less than the working efficiency corresponding to the recorded average power, increasing and compensating the real-time average power.
Specifically, when the real-time operating efficiency of the vehicle component is greater than the operating efficiency corresponding to the previously recorded average power, the real-time operating efficiency of the vehicle component is correspondingly compared with the operating efficiency corresponding to the previously recorded average power, and the real-time operating efficiency of the vehicle component is greater than the operating efficiency corresponding to the previously recorded average power. It should be noted that, when the real-time operating efficiency of the vehicle component is compared with the operating efficiency corresponding to the previously recorded average power, the real-time average power and the previously recorded average power may be the same or different, and are not limited herein. For example: the vehicle component may be a battery cell, and under the condition that the real-time average power of the battery cell is the same as the previously recorded average power of the battery cell, the real-time working efficiency of the battery cell is greater than the working efficiency corresponding to the previously recorded average power of the battery cell, and the real-time average power may be reduced and compensated to adjust the upper limit value of the preset temperature range.
In one example, the previously recorded average power may be 60kW, the preset temperature range may be 0 to 30 ℃, the real-time average power may be 70kW, and the updated preset temperature range may be 0 to 28 ℃. The real-time working efficiency is 95%, the working efficiency corresponding to the average power recorded in advance is 90%, the real-time working efficiency of the vehicle component is greater than the working efficiency corresponding to the average power recorded in advance, the real-time average power can be reduced and compensated, the real-time average power is adjusted in an auxiliary mode through the change of the real-time working efficiency of the vehicle component, the updated accurate preset temperature range can be 0-28.3 ℃. Therefore, in some embodiments, the upper limit value of the updated preset temperature range is obtained primarily by collecting the real-time average power and comparing the real-time average power with the previously recorded average power. Secondly, the real-time average power is adjusted in an auxiliary mode through the change of the real-time working efficiency of the vehicle component, so that an accurate upper limit value of the preset temperature range is obtained.
Referring to tables 1 and 2 together, in some embodiments, a lookup table of operating efficiency and power compensation value of vehicle components (i.e., tables 1 and 2) may be provided, and specifically, table 1 is a lookup table of operating efficiency and power compensation value when the real-time operating efficiency is greater than the operating efficiency corresponding to the average power recorded in the past. Taking the working efficiency of 60% -65% as an example, the working efficiency of 60% -65% means that the working efficiency corresponding to the previously recorded average power is 60%, the real-time working efficiency is 65%, and the real-time working efficiency is greater than the working efficiency corresponding to the previously recorded average power, so that the real-time average power can be adjusted in an auxiliary manner with reference to table 1, the compensation value is reduced by 1kW, and the threshold variation corresponding to the temperature is increased by 0.1 ℃. Table 2 is a table look-up of the working efficiency and the power compensation value when the real-time working efficiency is smaller than the working efficiency corresponding to the previous recorded average power. Taking the working efficiency of 95% -90% as an example, the working efficiency of 95% -90% means that the working efficiency corresponding to the previously recorded average power is 95%, the real-time working efficiency is 90%, and the real-time working efficiency is smaller than the working efficiency corresponding to the previously recorded average power, so that the real-time average power can be adjusted in an auxiliary manner with reference to table 2, the compensation value is increased by 1kW, and the threshold variation corresponding to the temperature is decreased by 0.1 ℃.
It is worth mentioning that table 1 indicates that the real-time average power is reduced by a compensation value of 1kW whenever the real-time working efficiency is 5% higher than the working efficiency corresponding to the recorded average power; table 2 indicates that the real-time average power is increased by a compensation value of 1kW whenever the real-time operating efficiency is 5% lower than the operating efficiency corresponding to the recorded average power. In one example, the work efficiency corresponding to the previously recorded average power is 60%, the real-time work efficiency is 80%, and the real-time work efficiency is greater than the work efficiency corresponding to the previously recorded average power, so that the real-time average power can be adjusted with reference to table 1, the real-time work efficiency is 20% higher than the work efficiency corresponding to the previously recorded average power, that is, the real-time average power is decreased by a compensation value of 4kW, and the threshold variation corresponding to the temperature is increased by 0.4 ℃.
Thus, the real-time average power can be rapidly reduced or increased according to the table look-up of the working efficiency and the power compensation value (i.e. table 1 and table 2), and the variation value of the upper limit value of the preset temperature range can be rapidly obtained according to the table look-up of the working efficiency and the power compensation value, so as to adjust the upper limit value of the preset temperature range. It is worth mentioning that the table look-up of the working efficiency and the power compensation value of the vehicle component can be calibrated and optimized according to the actual situation, so as to ensure the accuracy of the data. It should be noted that the above-mentioned examples and specific numerical values are provided for convenience of describing the implementation of the present application, and should not be construed as limiting the scope of the present application.
TABLE 1
TABLE 2
In certain embodiments, the cooling system liquid-cooled and/or air-cooled the vehicle components. Specifically, the cooling system can distribute heat generated by the vehicle components out in time to ensure that the vehicle components work in an optimum temperature range. Cooling systems that cool vehicle components using air as a cooling medium are referred to as air-cooled cooling, and cooling systems that cool vehicle components using a coolant as a cooling medium are referred to as liquid-cooled cooling. The cooling system using air cooling can take away part of heat generated by the vehicle parts by blowing flowing air on the surfaces of the vehicle parts at high speed, and has the characteristics of simple structure, light weight, convenient maintenance and use, strong adaptability to climate change and the like. The cooling system using liquid cooling can control the temperature of the vehicle parts through the periodic circulation of cooling liquid through the cooling liquid pipeline, the cooling liquid can be refrigerated through a condenser in the cooling system, and then the heat generated by the vehicle parts is taken away through the periodic circulation of the cooling liquid pipeline. Liquid cooling can be through the better temperature of control vehicle part of temperature controller, and the cooling effect is better. In some embodiments, the cooling system may also use both liquid cooling and air cooling to cool the vehicle components to ensure that the vehicle components operate in an optimum temperature range.
In some embodiments, the cooling system may not only cool the vehicle components, but may also warm the vehicle components to ensure that the vehicle components operate in an optimum temperature range. For example: after the vehicle 100 is cold, the coolant is heated by the temperature controller, and the coolant is circulated periodically by the coolant pipeline to heat the vehicle components, so as to ensure that the vehicle components reach the working temperature range as soon as possible.
In some embodiments, the cooling system may cool multiple vehicle components or may cool a single vehicle component. Specifically, before a plurality of vehicle components are used for cooling simultaneously, the real-time average power of each vehicle component can be acquired and compared with the average power recorded in advance to update the upper limit value of the preset temperature range, the temperature intervals of the plurality of vehicle components are determined according to the upper limit values of the plurality of vehicle components, and if one vehicle component exceeds the temperature interval, all the vehicle components in the cooling system are cooled. The cooling system cools a plurality of vehicle components, so that the manufacturing cost can be saved while the vehicle components are ensured to be in a temperature range.
Referring to fig. 8, in some embodiments, a method for controlling thermal management includes:
07: the previously recorded average power is updated with the real time average power.
In some embodiments, step 07 may be implemented by the adjustment module 14, that is, the adjustment module 14 is configured to update the previously recorded average power with the real-time average power.
Specifically, during the operation of the vehicle 100, the behavior of a plurality of vehicle components of the vehicle 100 may be integrated after a time interval, and the real-time average power of the vehicle components within a preset time period may be calculated. The currently calculated average power is the real-time average power and the last calculated average power is the previously recorded average power. The updating of the previously recorded average power by the real-time average power can ensure that the data obtained during the operation of the vehicle 100 is more accurate and does not cause excessive use of resources.
Referring again to fig. 1, a vehicle 100 according to an embodiment of the present application includes a thermal management control device 10 according to any of the embodiments described above. The real-time average power is collected through the control device 10 and compared with the average power recorded in advance to update the upper limit value of the preset temperature range, so that the intervention opportunity of the cooling system can adapt to the heat generated by vehicle components, and the overall energy consumption and/or the endurance mileage performance of the vehicle 100 are optimized on the premise of ensuring the cooling function and the performance requirement.
Referring to fig. 9, an electronic device 200 according to an embodiment of the present disclosure includes a memory 220, a processor 240, and a computer program stored in the memory 220 and executable on the processor 240, wherein when the processor 240 executes the computer program, the control method for thermal management according to any of the above embodiments is implemented.
The electronic device 200 according to the embodiment of the present application may be a computer, a robot, or other devices, the electronic device 200 executes a computer program stored in the memory 220 through the processor 240, and updates the upper limit value of the preset temperature range by collecting the real-time average power and comparing the real-time average power with the previously recorded average power, so that the intervention time of the cooling system can be adapted to the heat generated by the electronic device 200, and the overall energy consumption of the electronic device 200 is optimized on the premise of ensuring the cooling function and performance requirements.
Referring to fig. 10, a computer readable storage medium 300 according to an embodiment of the present application stores a computer program, and the computer program is executed by the processor 240 to implement the control method of thermal management according to any of the above embodiments. It should be noted that the computer program stored in the computer-readable storage medium 300 of the embodiment of the present application may be executed by the processor 240 of the electronic device 200, and it should be noted that the computer-readable storage medium 300 may be a storage medium built in the electronic device 200 or the vehicle 100, or may be a storage medium that can be plugged into the electronic device 200 or the vehicle 100 in an pluggable manner, so that the computer-readable storage medium 300 of the embodiment of the present application has higher flexibility and reliability.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
The Processor 220 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It should be understood that portions of the embodiments of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A control method for thermal management for a vehicle, the control method comprising:
under the condition that the working temperature of the vehicle component is in a preset temperature range, calculating the real-time average power of the vehicle component within a preset time length;
reducing the upper limit value of the preset temperature range under the condition that the real-time average power is greater than the previously recorded average power;
increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the prior recorded average power;
and when the working temperature of the vehicle component is greater than the upper limit value of the preset temperature range, controlling a cooling system of the vehicle to cool the vehicle component.
2. The control method of thermal management according to claim 1, wherein calculating a real-time average power of the vehicle component over a preset time period comprises:
integrating the real-time power of the vehicle component over time;
and after the time reaches the preset time length, calculating the real-time average power of the vehicle component according to the integration result and the preset time length.
3. The method of controlling thermal management according to claim 1, comprising:
acquiring real-time working efficiency of the vehicle component;
compensating the real-time average power according to the real-time working efficiency of the vehicle component.
4. The control method of thermal management according to claim 3, wherein obtaining real-time operating efficiency of the vehicle component comprises:
collecting electrical signal parameters of the vehicle component;
and acquiring the real-time working efficiency of the vehicle component according to the corresponding relation between the parameters and the working efficiency and the electric signal parameters.
5. The control method of thermal management according to claim 3, wherein compensating the real-time average power based on real-time operating efficiency of the vehicle component comprises:
under the condition that the real-time working efficiency of the vehicle component is greater than the working efficiency corresponding to the previously recorded average power, performing reduction compensation on the real-time average power;
and under the condition that the real-time working efficiency of the vehicle part is smaller than the working efficiency corresponding to the prior recorded average power, increasing and compensating the real-time average power.
6. The control method of thermal management according to claim 1, wherein said cooling system liquid-cooled and/or air-cooled cools said vehicle component.
7. The method of controlling thermal management of claim 1, comprising:
updating the previously recorded average power with the real time average power.
8. A control device for thermal management, comprising:
the calculation module is used for calculating the real-time average power of the vehicle component within a preset time length under the condition that the working temperature of the vehicle component is within a preset temperature range;
the adjusting module is used for reducing the upper limit value of the preset temperature range under the condition that the real-time average power is larger than the prior recorded average power, and increasing the upper limit value of the preset temperature range under the condition that the real-time average power is smaller than the prior recorded average power;
and the control module is used for controlling a cooling system of the vehicle to cool the vehicle component when the working temperature of the vehicle component is greater than the upper limit value of the preset temperature range.
9. A vehicle comprising the thermally managed control device of claim 8.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a control method for thermal management according to any one of claims 1 to 7.
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