CN117514882A - Control method and control device for electronic fan in thermal management system - Google Patents
Control method and control device for electronic fan in thermal management system Download PDFInfo
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- CN117514882A CN117514882A CN202311520407.2A CN202311520407A CN117514882A CN 117514882 A CN117514882 A CN 117514882A CN 202311520407 A CN202311520407 A CN 202311520407A CN 117514882 A CN117514882 A CN 117514882A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000004378 air conditioning Methods 0.000 claims abstract description 75
- 230000007613 environmental effect Effects 0.000 claims abstract description 29
- 238000004590 computer program Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 42
- 238000004891 communication Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application provides a control method and a control device of an electronic fan in a thermal management system, wherein the control method comprises the following steps: acquiring the real-time environmental temperature of the environment where the thermal management system is located and the real-time radiator temperature of a radiator in a motor system in the thermal management system; detecting the opening state of an air conditioning system in the thermal management system in real time; determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature; determining a target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature; and controlling the rotation of the electronic fan according to the target rotation speed of the electronic fan. The control method and the control device can simultaneously meet the energy-saving requirement of the thermal management system under the condition of meeting the heat dissipation requirement of the equipment to be dissipated.
Description
Technical Field
The present disclosure relates to the field of electric engineering machinery, and in particular, to a method and an apparatus for controlling an electronic fan in a thermal management system.
Background
In the field of electric engineering machinery, an electronic fan in a thermal management system is required to radiate heat to equipment to be radiated in the thermal management system.
In the prior art, a target rotating speed of an electronic fan is generally determined according to a preset mapping relation according to the current environmental temperature of equipment to be cooled, and then the electronic fan is controlled to rotate according to the target rotating speed. However, this control manner in the prior art can only meet the heat dissipation requirement of the device to be dissipated, and cannot simultaneously realize the energy saving requirement of the thermal management system.
Disclosure of Invention
In view of the foregoing, an object of the present application is to provide a control method and a control device for an electronic fan in a thermal management system, which can simultaneously satisfy energy saving requirements of the thermal management system while satisfying heat dissipation requirements of a device to be heat-dissipated.
In a first aspect, an embodiment of the present application provides a method for controlling an electronic fan in a thermal management system, where the method includes:
acquiring the real-time environmental temperature of the environment where the thermal management system is located and the real-time radiator temperature of a radiator in a motor system in the thermal management system;
detecting the opening state of an air conditioning system in the thermal management system in real time;
Determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature;
determining a target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
and controlling the rotation of the electronic fan according to the target rotation speed of the electronic fan.
Optionally, the determining the corresponding target radiator threshold temperature based on the on state of the air conditioning system and the real-time ambient temperature includes:
if the opening state of the air conditioning system is unopened, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a third preset radiator threshold temperature and a fourth preset radiator threshold temperature as target radiator threshold temperatures;
wherein the first preset radiator threshold temperature is less than the second preset radiator threshold temperature, and the third preset radiator threshold temperature is less than the fourth preset radiator threshold temperature; the first preset radiator threshold temperature is less than the third preset radiator threshold temperature; the second preset radiator threshold temperature is less than the fourth preset radiator threshold temperature.
Optionally, the determining the corresponding target radiator threshold temperature based on the on state of the air conditioning system and the real-time ambient temperature includes:
if the opening state of the air conditioning system is opening, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a fifth preset radiator threshold temperature and a sixth preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
wherein the fifth preset radiator threshold temperature is less than the sixth preset radiator threshold temperature; the fifth preset radiator threshold temperature is less than the first preset radiator threshold temperature; the sixth preset radiator threshold temperature is less than the second preset radiator threshold temperature.
Optionally, the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
Comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
if the real-time radiator temperature reaches a first preset radiator threshold temperature and does not reach a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a first preset rotating speed;
if the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a second preset rotating speed; the first predetermined rotational speed is less than the second predetermined rotational speed.
Optionally, the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the third preset radiator threshold temperature and the fourth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the third preset radiator threshold temperature and the fourth radiator threshold temperature;
If the real-time radiator temperature reaches a third preset radiator threshold temperature and does not reach a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a third preset rotating speed;
if the real-time radiator temperature reaches a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fourth preset rotating speed; the third predetermined rotational speed is less than the fourth predetermined rotational speed.
Optionally, the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature;
if the real-time radiator temperature reaches a fifth preset radiator threshold temperature and does not reach a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fifth preset rotating speed;
if the real-time radiator temperature reaches a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a sixth preset rotating speed; the fifth predetermined rotational speed is less than the sixth predetermined rotational speed.
Optionally, the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
if the real-time radiator temperature reaches the first preset radiator threshold temperature and does not reach the second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a seventh preset rotating speed;
if the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is an eighth preset rotating speed; the seventh predetermined rotational speed is less than the eighth predetermined rotational speed.
In a second aspect, an embodiment of the present application provides a control device for an electronic fan in a thermal management system, where the control device includes:
the acquisition module is used for acquiring the real-time environment temperature of the environment where the thermal management system is located and the real-time radiator temperature of the radiator in the motor system in the thermal management system;
The detection module is used for detecting the opening state of the air conditioning system in the thermal management system in real time;
a threshold temperature determining module for determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature;
a target rotation speed determining module, configured to determine a target rotation speed of the electronic fan based on a magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
and the control module is used for controlling the electronic fan to rotate according to the target rotating speed of the electronic fan.
In a third aspect, an embodiment of the present application provides an electronic device, including: the system comprises a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, the processor and the memory are communicated through the bus when the electronic device is running, and the machine-readable instructions are executed by the processor to perform the steps of the control method of the electronic fan in the thermal management system.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium having a computer program stored thereon, which when executed by a processor performs the steps of a method of controlling an electronic fan in a thermal management system as described above.
The embodiment of the application provides a control method and a control device for an electronic fan in a thermal management system, wherein the control method and the control device comprise the following steps: acquiring the real-time environmental temperature of the environment where the thermal management system is located and the real-time radiator temperature of a radiator in a motor system in the thermal management system; detecting the opening state of an air conditioning system in the thermal management system in real time; determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature; determining a target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature; and controlling the rotation of the electronic fan according to the target rotation speed of the electronic fan. The control method and the control device provided by the embodiment of the application determine the corresponding target radiator threshold temperature based on the opening state of the air conditioning system and the real-time environment temperature; and determining the target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature, wherein compared with the prior art that the target rotating speed of the electronic fan is determined only according to the environment temperature, the target radiator threshold temperature is determined, so that the energy-saving requirement of the thermal management system is simultaneously met under the condition that the radiating requirement of equipment to be radiated is met.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a flow chart of a method of controlling an electronic fan in a thermal management system according to an exemplary embodiment of the present application;
FIG. 2 illustrates a flow chart for determining a corresponding target radiator threshold temperature and determining a target rotational speed of the electronic fan provided by an exemplary embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a control device of an electronic fan in a thermal management system according to an exemplary embodiment of the present disclosure;
fig. 4 shows a schematic structural diagram of an electronic device according to an exemplary embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, every other embodiment that a person skilled in the art would obtain without making any inventive effort is within the scope of protection of the present application.
In the prior art, a target rotating speed of an electronic fan is generally determined according to a preset mapping relation according to the current environmental temperature of equipment to be cooled, and then the electronic fan is controlled to rotate according to the target rotating speed. However, this control manner in the prior art can only meet the heat dissipation requirement of the device to be dissipated, and cannot simultaneously meet the energy saving requirement of the thermal management system.
Based on the above, the embodiment of the application provides a control method of an electronic fan in a thermal management system, which determines a corresponding target radiator threshold temperature based on the opening state of an air conditioning system and the real-time environmental temperature; and determining the target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature, and compared with the prior art that the target rotating speed of the electronic fan is determined only according to the environment temperature, determining the target radiator threshold temperature, so that the energy-saving requirement of the thermal management system is simultaneously met under the condition that the radiating requirement of equipment to be radiated is met.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for controlling an electronic fan in a thermal management system according to an embodiment of the present application.
As shown in fig. 1, a method for controlling an electronic fan in a thermal management system according to an embodiment of the present application includes the following steps:
s100, acquiring the real-time environment temperature of the environment where the thermal management system is located and the real-time radiator temperature of a radiator in a motor system in the thermal management system;
as an example, the thermal management system may include an air conditioning system and a motor system. The radiator in the motor system may include a water-cooled radiator and an oil-cooled radiator.
The electronic fan in the thermal management system is used for radiating heat to corresponding equipment to be radiated (such as a radiator and the like) in the motor system and/or corresponding equipment to be radiated (such as a condenser and the like) in the air conditioning system. Here, when the construction machine is turned on, i.e. the motor system is also turned on, and the air conditioning system is turned on when needed. Thus, it will be appreciated that there may be two situations when the work machine is turned on, namely, when only the motor system is turned on and when both the motor system and the air conditioning system are turned on.
S200, detecting the opening state of an air conditioning system in the thermal management system in real time;
it is understood that the open state of the air conditioning system includes an unopened state and an open state. When the opening state of the air conditioning system is unopened, namely, the condition that only the motor system is opened is obtained; when the opening state of the air conditioning system is opened, the motor system and the air conditioning system are simultaneously opened.
S300, determining a corresponding target radiator threshold temperature based on the opening state of the air conditioning system and the real-time environment temperature;
here, a plurality of radiator threshold temperatures may be preset, corresponding to different radiator threshold temperatures in different on states of the air conditioning system and real-time ambient temperatures. Accordingly, based on the on state and the real-time ambient temperature, a corresponding target radiator threshold temperature may be determined from among different radiator threshold temperatures.
S400, determining the target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
s500, controlling the electronic fan to rotate according to the target rotating speed of the electronic fan.
According to the control method of the electronic fan in the thermal management system, the corresponding target radiator threshold temperature is determined based on the opening state of the air conditioning system and the real-time environment temperature; and determining the target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature, and compared with the prior art that the target rotating speed of the electronic fan is determined only according to the environment temperature, determining the target radiator threshold temperature, so that the energy-saving requirement of the thermal management system is simultaneously met under the condition that the radiating requirement of equipment to be radiated is met.
Next, step S300 and step S400 will be described in detail with reference to fig. 2.
Fig. 2 shows a flowchart for determining a corresponding target radiator threshold temperature and determining a target rotational speed of the electronic fan according to an exemplary embodiment of the present application.
As shown in fig. 2, in step S300:
If the open state of the air conditioning system is unopened, comparing the real-time ambient temperature with a preset ambient threshold temperature in step S311; if the real-time ambient temperature reaches the preset ambient threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures in step S312; if the real-time ambient temperature does not reach the preset ambient threshold temperature, then at step S313, a third preset radiator threshold temperature and a fourth radiator threshold temperature are determined as target radiator threshold temperatures.
Wherein the first preset radiator threshold temperature is less than the second preset radiator threshold temperature; the first preset radiator threshold temperature indicates a critical temperature for reaching a medium-level heat dissipation requirement when the open state of the air conditioning system is unopened and the real-time environment temperature reaches a preset environment threshold temperature, or indicates a critical temperature for reaching a medium-level heat dissipation requirement when the open state of the air conditioning system is opened and the real-time environment temperature does not reach a preset environment threshold temperature; the second preset radiator threshold temperature indicates a critical temperature at which the radiator reaches an advanced heat dissipation requirement when the open state of the air conditioning system is unopened and the real-time environmental temperature reaches the preset environmental threshold temperature, or the second preset radiator threshold temperature indicates a critical temperature at which the radiator reaches the advanced heat dissipation requirement when the open state of the air conditioning system is open and the real-time environmental temperature does not reach the preset environmental threshold temperature.
Further, as shown in fig. 2, after step S312, the specific implementation of step S400 includes: in step S411, comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature, if the real-time radiator temperature does not reach the first preset radiator threshold temperature, indicating that the radiator is in a low-level heat dissipation requirement, and at this time, not needing to control the rotation of the electronic fan to dissipate heat for the thermal management system (not shown in the figure); if the real-time radiator temperature reaches the first preset radiator threshold temperature and does not reach the second preset radiator threshold temperature, it is indicated that the radiator reaches the medium-level heat dissipation requirement, and at this time, in step S412, it is determined that the target rotation speed of the electronic fan is the first preset rotation speed, and the electronic fan is controlled to rotate at the first preset rotation speed (lower rotation speed) to dissipate heat of the thermal management system; if the real-time radiator temperature of the radiator reaches the second preset radiator threshold temperature, it is indicated that the radiator reaches the advanced heat dissipation requirement, at this time, in step S413, the target rotation speed of the electronic fan is determined to be the second preset rotation speed, and the electronic fan is controlled to rotate at the second preset rotation speed (higher rotation speed) to dissipate heat of the thermal management system, where the first preset rotation speed is smaller than the second preset rotation speed. For example, the first predetermined rotational speed may be 30%, and the second predetermined rotational speed may be 100%.
The third preset radiator threshold temperature is smaller than the fourth preset radiator threshold temperature, wherein the third preset radiator threshold temperature indicates a critical temperature at which the radiator reaches a medium-level heat dissipation requirement when the open state of the air conditioning system is unopened and the real-time environment temperature does not reach the preset environment threshold temperature, and the fourth preset radiator threshold temperature indicates a critical temperature at which the radiator reaches a high-level heat dissipation requirement when the open state of the air conditioning system is unopened and the real-time environment temperature does not reach the preset environment threshold temperature.
Further, as shown in fig. 2, after step S313, the specific implementation of step S400 includes: in step S421, comparing the real-time radiator temperature with the third preset radiator threshold temperature and the fourth preset radiator threshold temperature, if the real-time radiator temperature does not reach the third preset radiator threshold temperature, indicating that the radiator is in a low-level heat dissipation requirement, and at this time, not needing to control the rotation of the electronic fan to dissipate heat for the thermal management system (not shown in the figure); if the real-time radiator temperature reaches the third preset radiator threshold temperature and does not reach the fourth preset radiator threshold temperature, it is indicated that the radiator reaches the medium-level heat dissipation requirement, and at this time, in step S422, it is determined that the target rotation speed of the electronic fan is the third preset rotation speed, and the electronic fan is controlled to rotate at the third preset rotation speed (lower rotation speed) to dissipate heat of the thermal management system; if the real-time radiator temperature of the radiator reaches the fourth preset radiator threshold temperature, it indicates that the radiator reaches the advanced heat dissipation requirement, at this time, in step S423, it is determined that the target rotation speed of the electronic fan is the fourth preset rotation speed, and the electronic fan is controlled to rotate at the fourth preset rotation speed (higher rotation speed) to dissipate heat of the thermal management system, where the third preset rotation speed is smaller than the fourth preset rotation speed, and as an example, the third preset rotation speed may be the same as the first preset rotation speed, the fourth preset rotation speed may be the same as the second preset rotation speed, for example, the third preset rotation speed may be 30%, and the fourth preset rotation speed may be 100%.
Here, the first preset radiator threshold temperature is less than the third preset radiator threshold temperature; the second preset radiator threshold temperature is less than the fourth preset radiator threshold temperature.
Here, for the first preset radiator threshold temperature and the third preset radiator threshold temperature, that is, for two critical temperatures indicating that the radiator reaches the medium-level heat radiation requirement in the case where the air conditioning system is not turned on, the purpose of setting the first preset radiator threshold temperature to be smaller than the third preset radiator threshold temperature is to: when the air conditioning system is not started, if the real-time environment temperature reaches the preset environment threshold temperature, the real-time environment temperature is higher, the heat dissipation requirement of the radiator is larger, and when the real-time radiator temperature of the radiator is lower (namely, when the real-time radiator temperature reaches the first preset radiator threshold temperature), the electronic fan is started; if the real-time environmental temperature does not reach the preset environmental threshold temperature, the real-time environmental temperature is lower, and the heat dissipation requirement of the radiator is not large at the moment, and at the moment, the electronic fan is started when the temperature of the radiator is high (namely, when the temperature of the real-time radiator reaches the third preset radiator threshold temperature). In this way, the medium-grade heat dissipation requirement of the motor system and the energy saving requirement of the thermal management system can be simultaneously met under the condition that the air conditioning system is not started.
Similarly, for the second preset radiator threshold temperature and the fourth preset radiator threshold temperature, that is, for two critical temperatures indicating that the radiator reaches the advanced heat dissipation requirement when the air conditioning system is not turned on, the purpose of setting the second preset radiator threshold temperature to be smaller than the fourth preset radiator threshold temperature is to: when the air conditioner is not started, if the real-time environment temperature reaches the preset environment threshold temperature, the real-time environment temperature is higher, the heat dissipation requirement of the radiator is larger, and when the real-time radiator temperature of the radiator is lower (namely, when the real-time radiator temperature reaches the second preset radiator threshold temperature), the electronic fan is started; if the real-time environment temperature does not reach the preset environment threshold temperature, the real-time environment temperature is lower, the heat dissipation requirement of the radiator is not large, and at the moment, when the real-time radiator temperature of the radiator is higher (namely, when the real-time radiator temperature reaches the fourth preset radiator threshold temperature), the electronic fan is started. In this way, the high-grade heat dissipation requirement of the motor system and the energy saving requirement of the thermal management system can be simultaneously met under the condition that the air conditioning system is not started.
With continued reference to fig. 2, as shown in fig. 2, in step S300:
if the on state of the air conditioning system is on, comparing the real-time ambient temperature with a preset ambient threshold temperature in step S321; if the real-time ambient temperature reaches the preset ambient threshold temperature, determining a fifth preset radiator threshold temperature and a sixth preset radiator threshold temperature as target radiator threshold temperatures in step S322; if the real-time ambient temperature does not reach the preset ambient threshold temperature, the first preset radiator threshold temperature and the second preset radiator threshold temperature are determined as target radiator threshold temperatures at step S323.
Wherein the fifth preset radiator threshold temperature is less than the sixth preset radiator threshold temperature; the fifth preset radiator threshold temperature indicates a critical temperature for the radiator to reach a medium-level heat dissipation requirement when the open state of the air conditioning system is open and the real-time environment temperature reaches the preset environment threshold temperature, and the sixth preset radiator threshold temperature indicates a critical temperature for the radiator to reach a high-level heat dissipation requirement when the open state of the air conditioning system is open and the real-time environment temperature reaches the preset environment threshold temperature.
Further, as shown in fig. 2, after step S322, the specific implementation of step S400 includes: in step S431, comparing the real-time radiator temperature with the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature, if the real-time radiator temperature does not reach the fifth preset radiator threshold temperature, indicating that the radiator is in a low-level heat dissipation requirement, and at this time, not needing to control the rotation of the electronic fan to dissipate heat for the thermal management system (not shown in the figure); if the real-time radiator temperature reaches the fifth preset radiator threshold temperature and does not reach the sixth preset radiator threshold temperature, the radiator is indicated to reach the medium-level heat dissipation requirement, and at this time, in step S432, the target rotation speed of the electronic fan is determined to be the fifth preset rotation speed, and the electronic fan is controlled to rotate at the sixth preset rotation speed (higher rotation speed) to dissipate heat of the thermal management system; if the real-time radiator temperature of the radiator reaches the sixth preset radiator threshold temperature, it indicates that the radiator reaches the advanced heat dissipation requirement, at this time, in step S433, it is determined that the target rotation speed of the electronic fan is the sixth preset rotation speed, and the electronic fan is controlled to rotate at the sixth preset rotation speed (higher rotation speed) to dissipate heat of the thermal management system, where the fifth preset rotation speed is smaller than the sixth preset rotation speed, and as an example, the fifth preset rotation speed may be the same as the first preset rotation speed, the sixth preset rotation speed may be the same as the second preset rotation speed, for example, the fifth preset rotation speed may be 30%, and the sixth preset rotation speed may be 100%.
Here, the fifth predetermined rotational speed and the sixth predetermined rotational speed may be greater than a heat radiation rotational speed of the air conditioning system, wherein the heat radiation rotational speed is a minimum rotational speed that satisfies a heat radiation requirement of the air conditioning system.
Further, as shown in fig. 2, after step S323, the specific implementation of step S400 includes: in step S441, comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature, if the real-time radiator temperature does not reach the first preset radiator threshold temperature, it is indicated that the radiator is in a low-level heat dissipation requirement, and at this time, it is not necessary to control the rotation of the electronic fan to dissipate heat of the thermal management system (not shown in the figure); if the real-time radiator temperature reaches the first preset radiator threshold temperature and does not reach the second preset radiator threshold temperature, the radiator is indicated to reach the medium-level heat dissipation requirement, and at this time, in step S442, it is determined that the target rotation speed of the electronic fan is the seventh preset rotation speed, and the electronic fan is controlled to rotate at the seventh preset rotation speed (lower rotation speed) to dissipate heat of the thermal management system; if the real-time radiator temperature of the radiator reaches the second preset radiator threshold temperature, it is indicated that the radiator reaches the advanced heat dissipation requirement, at this time, in step S413, it is determined that the target rotation speed of the electronic fan is the eighth preset rotation speed, and the electronic fan is controlled to rotate at the eighth preset rotation speed (higher rotation speed) to dissipate heat of the thermal management system. Wherein the seventh predetermined rotational speed is less than the eighth predetermined rotational speed. As an example, the seventh predetermined rotational speed may be the same as the first predetermined rotational speed, the eighth predetermined rotational speed may be the same as the second predetermined rotational speed, for example, the seventh predetermined rotational speed may be 30%, and the eighth predetermined rotational speed may be 100%.
Here, the fifth preset radiator threshold temperature is less than the first preset radiator threshold temperature; the sixth preset radiator threshold temperature is less than the second radiator threshold temperature.
Here, for the fifth preset radiator threshold temperature and the first preset radiator threshold temperature, that is, for the two critical temperatures indicating that the radiator reaches the medium-level heat radiation requirement in the case of the air conditioning system being turned on, the purpose of setting the fifth preset radiator threshold temperature to be smaller than the first preset radiator threshold temperature is to: when the air conditioning system is started, if the real-time environment temperature reaches the preset environment threshold temperature, the real-time environment temperature is higher, the heat dissipation requirement of the radiator is larger, and when the real-time radiator temperature of the radiator is lower (namely, when the real-time radiator temperature reaches the fifth preset radiator threshold temperature), the electronic fan is started; if the real-time environment temperature does not reach the preset environment threshold temperature, the real-time environment temperature is lower, the heat dissipation requirement of the radiator is not large, and at the moment, the electronic fan is started when the temperature of the radiator is high (namely, when the temperature of the real-time radiator reaches the first preset radiator threshold temperature). In this way, the medium-grade heat dissipation requirement of the motor system and the heat dissipation requirement of the air conditioning system can be simultaneously met under the condition that the air conditioning system is started, and the energy saving requirement of the thermal management system is realized.
Similarly, for the sixth preset radiator threshold temperature and the second preset radiator threshold temperature, that is, for the two critical temperatures indicating that the radiator reaches the advanced heat dissipation requirement in the case of the air conditioning system being turned on, the purpose of setting the sixth preset radiator threshold temperature to be smaller than the second preset radiator threshold temperature is to: when the air conditioning system is started, if the real-time environment temperature reaches the preset environment threshold temperature, the real-time environment temperature is higher, the heat dissipation requirement of the radiator is larger, and when the real-time radiator temperature of the radiator is lower (namely, when the real-time radiator temperature reaches the sixth preset radiator threshold temperature), the electronic fan is started; if the real-time environment temperature does not reach the preset environment threshold temperature, the real-time environment temperature is lower, the heat dissipation requirement of the radiator is not large, and at the moment, when the real-time radiator temperature of the radiator is higher (namely, when the real-time radiator temperature reaches the second preset radiator threshold temperature), the electronic fan is started. In this way, the high-grade heat dissipation requirement of the motor system and the heat dissipation requirement of the air conditioning system and the energy saving requirement of the thermal management system can be simultaneously met under the condition that the air conditioning system is started.
Here, since the working condition when the air conditioning system is turned on and the real-time environmental temperature does not reach the preset environmental threshold temperature is similar to the working condition when the air conditioning system is turned off and the real-time environmental temperature does not reach the preset environmental threshold temperature, the target radiator threshold temperature corresponding to the case when the air conditioning system is turned on and the real-time environmental temperature does not reach the preset environmental threshold temperature is also set as the first preset radiator threshold temperature and the second preset radiator threshold temperature.
Here, in the case where the air conditioning system is turned on, the motor system and the air conditioning system in the thermal management system are turned on at the same time, and compared with the case where the air conditioning system is not turned on, the air conditioning system is added to the parts requiring heat dissipation in the thermal management system, the temperature of the thermal management system rises faster, so that the heat dissipation requirement of the thermal management system is higher, and therefore, in the case where the air conditioning system is turned on, the real-time environmental temperature reaches the target radiator threshold temperature (fifth preset radiator threshold temperature) corresponding to the preset environmental threshold temperature, and compared with the case where the air conditioning system is not turned on, the real-time environmental temperature reaches the target radiator threshold temperature (first preset radiator threshold temperature) corresponding to the preset environmental threshold temperature lower; the target radiator threshold temperature (sixth preset radiator threshold temperature) corresponding to the real-time environmental temperature reaching the preset environmental threshold temperature when the air conditioning system is turned on is lower than the target radiator threshold temperature (second preset radiator threshold temperature) corresponding to the real-time environmental temperature reaching the preset environmental threshold temperature when the air conditioning system is not turned on.
As an example, where the radiator includes a water-cooled radiator and an oil-cooled radiator, the first preset radiator threshold temperature includes a first water-cooled radiator threshold temperature and a first oil-cooled radiator threshold temperature, the second preset radiator threshold temperature includes a second water-cooled radiator threshold temperature and a second oil-cooled radiator threshold temperature, the third preset radiator threshold temperature includes a third water-cooled radiator threshold temperature and a third oil-cooled radiator threshold temperature, the fourth preset radiator threshold temperature includes a fourth water-cooled radiator threshold temperature and a fourth oil-cooled radiator threshold temperature, the fifth preset radiator threshold temperature includes a fifth water-cooled radiator threshold temperature and a fifth oil-cooled radiator threshold temperature, and the sixth preset radiator threshold temperature includes a sixth water-cooled radiator threshold temperature and a sixth oil-cooled radiator threshold temperature.
Wherein the first water-cooled radiator threshold temperature is less than the second water-cooled radiator threshold temperature, and the first oil-cooled radiator threshold temperature is less than the second oil-cooled radiator threshold temperature; the third water-cooled radiator threshold temperature is less than the fourth water-cooled radiator threshold temperature, and the third oil-cooled radiator threshold temperature is less than the fourth oil-cooled radiator threshold temperature; the first water-cooled radiator threshold temperature is less than the third water-cooled radiator threshold temperature; the first oil-cooled radiator threshold temperature is less than the third oil-cooled radiator threshold temperature; the second water-cooled radiator threshold temperature is less than the fourth water-cooled radiator threshold temperature, and the second oil-cooled radiator threshold temperature is less than the fourth oil-cooled radiator threshold temperature; the fifth water-cooled radiator threshold temperature is less than the sixth water-cooled radiator threshold temperature, and the fifth oil-cooled radiator threshold temperature is less than the sixth oil-cooled radiator threshold temperature; the fifth water-cooled radiator threshold temperature is less than the first water-cooled radiator threshold temperature; the fifth oil-cooled radiator threshold temperature is less than the first oil-cooled radiator threshold temperature; the sixth water-cooled radiator threshold temperature is less than the second water-cooled radiator threshold temperature, and the sixth oil-cooled radiator threshold temperature is less than the second oil-cooled radiator threshold temperature.
In addition, in step S500, the control method further includes, after controlling the rotation of the electronic fan according to the target rotation speed of the electronic fan:
detecting whether the temperature of the radiator continuously rises within a preset time period; if the temperature of the heat sink continues to rise for a predetermined period of time, a fault of the thermal management system is determined and a fault warning is issued.
Furthermore, the control method further includes:
when the complete machine VCU cannot receive communication feedback, the electronic fan is controlled to be started to run at full speed, namely the electronic fan is controlled to run at 100%, so that the damage of the radiator caused by the overhigh temperature of the water-cooling radiator and the oil-cooling radiator in the radiator is prevented, and devices are protected.
In addition, the control method may further include:
when the VCU of the whole machine detects that the high-voltage devices of the whole machine all finish high voltage, the fan is started to reversely rotate for dust removal. Here, after the high voltage is applied, the fan is started to reversely rotate for dust removal, and the electric quantity converted by the high voltage of the power battery through the DCDC (direct current buck converter) is utilized, so that the situation that the high voltage is not applied when the power battery is started is avoided, and the electric quantity of the low-voltage electric bottle is utilized for back blowing dust removal, so that the electric quantity of the storage battery is deficient.
Here, the corresponding devices (e.g., an air conditioner controller, an ambient temperature sensor, a water temperature sensor, an oil temperature sensor, etc.) may be integrated in the complete machine VCU. The whole VCU is used for real-time monitoring, communication control delay is avoided, and the failure cause can be accurately judged when the communication control fails. Meanwhile, all communication control is integrated into the VCU of the whole machine, so that all control can be controlled in a linkage way.
Based on the same inventive concept, the embodiment of the present application further provides a control device for an electronic fan in a thermal management system, where the control method for an electronic fan in a thermal management system corresponds to the control device for an electronic fan, and since the principle of solving the problem of the device in the embodiment of the present application is similar to that of the method in the embodiment of the present application, the implementation of the device may refer to the implementation of the method, and the repetition is omitted.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a control device of an electronic fan in a thermal management system according to an exemplary embodiment of the present application.
As shown in fig. 3, the control device 300 of the electronic fan in the thermal management system includes:
an obtaining module 310, configured to obtain a real-time environmental temperature of an environment in which the thermal management system is located and a real-time radiator temperature of a radiator in a motor system in the thermal management system;
a detection module 320, configured to detect an on state of an air conditioning system in the thermal management system in real time;
a threshold temperature determination module 330 for determining a corresponding target radiator threshold temperature based on the on state of the air conditioning system and the real-time ambient temperature;
a target rotation speed determining module 340, configured to determine a target rotation speed of the electronic fan based on a magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
And the control module 350 is used for controlling the electronic fan to rotate according to the target rotating speed of the electronic fan.
Optionally, the threshold temperature determining module 330 is specifically configured to:
if the opening state of the air conditioning system is unopened, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a third preset radiator threshold temperature and a fourth preset radiator threshold temperature as target radiator threshold temperatures;
wherein the first preset radiator threshold temperature is less than the second preset radiator threshold temperature, and the third preset radiator threshold temperature is less than the fourth preset radiator threshold temperature; the first preset radiator threshold temperature is less than the third preset radiator threshold temperature; the second preset radiator threshold temperature is less than the fourth preset radiator threshold temperature.
Optionally, the threshold temperature determining module 330 is specifically configured to:
If the opening state of the air conditioning system is opening, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a fifth preset radiator threshold temperature and a sixth preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
wherein the fifth preset radiator threshold temperature is less than the sixth preset radiator threshold temperature; the fifth preset radiator threshold temperature is less than the first preset radiator threshold temperature; the sixth preset radiator threshold temperature is less than the second preset radiator threshold temperature.
Optionally, the target rotation speed determining module 340 is specifically configured to:
comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
If the real-time radiator temperature reaches a first preset radiator threshold temperature and does not reach a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a first preset rotating speed;
if the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a second preset rotating speed; the first predetermined rotational speed is less than the second predetermined rotational speed.
Optionally, the target rotation speed determining module 340 is specifically configured to:
comparing the real-time radiator temperature with the third preset radiator threshold temperature and the fourth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the third preset radiator threshold temperature and the fourth radiator threshold temperature;
if the real-time radiator temperature reaches a third preset radiator threshold temperature and does not reach a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a third preset rotating speed;
if the real-time radiator temperature reaches a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fourth preset rotating speed; the third predetermined rotational speed is less than the fourth predetermined rotational speed.
Optionally, the target rotation speed determining module 340 is specifically configured to:
comparing the real-time radiator temperature with the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature;
if the real-time radiator temperature reaches a fifth preset radiator threshold temperature and does not reach a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fifth preset rotating speed;
if the real-time radiator temperature reaches a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a sixth preset rotating speed; the fifth predetermined rotational speed is less than the sixth predetermined rotational speed.
Optionally, the target rotation speed determining module 340 is specifically configured to:
comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
if the real-time radiator temperature reaches the first preset radiator threshold temperature and does not reach the second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a seventh preset rotating speed;
If the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is an eighth preset rotating speed; the seventh predetermined rotational speed is less than the eighth predetermined rotational speed.
According to the control device of the electronic fan in the thermal management system, the corresponding target radiator threshold temperature is determined based on the opening state of the air conditioning system and the real-time environment temperature; and determining the target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature, and compared with the prior art that the target rotating speed of the electronic fan is determined only according to the environment temperature, determining the target radiator threshold temperature, so that the energy-saving requirement of the thermal management system is simultaneously met under the condition that the radiating requirement of equipment to be radiated is met.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 4, the electronic device 400 includes a processor 410, a memory 420, and a bus 430.
The memory 420 stores machine-readable instructions executable by the processor 410, when the electronic device 400 is running, the processor 410 communicates with the memory 420 through the bus 430, and when the machine-readable instructions are executed by the processor 410, the steps of the method for controlling an electronic fan in the thermal management system in the method embodiment described above may be executed, and specific implementation manners may refer to the method embodiment and will not be described herein.
The embodiment of the present application further provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the steps of the method for controlling an electronic fan in a thermal management system in the above method embodiment may be executed, and a specific implementation manner may refer to the method embodiment and will not be described herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method for controlling an electronic fan in a thermal management system, the method comprising:
acquiring the real-time environmental temperature of the environment where the thermal management system is located and the real-time radiator temperature of a radiator in a motor system in the thermal management system;
Detecting the opening state of an air conditioning system in the thermal management system in real time;
determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature;
determining a target rotating speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
and controlling the rotation of the electronic fan according to the target rotation speed of the electronic fan.
2. The control method of claim 1, wherein the determining the respective target radiator threshold temperature based on the on state of the air conditioning system and the real-time ambient temperature comprises:
if the opening state of the air conditioning system is unopened, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a third preset radiator threshold temperature and a fourth preset radiator threshold temperature as target radiator threshold temperatures;
Wherein the first preset radiator threshold temperature is less than the second preset radiator threshold temperature, and the third preset radiator threshold temperature is less than the fourth preset radiator threshold temperature; the first preset radiator threshold temperature is less than the third preset radiator threshold temperature; the second preset radiator threshold temperature is less than the fourth preset radiator threshold temperature.
3. The control method of claim 1, wherein the determining the respective target radiator threshold temperature based on the on state of the air conditioning system and the real-time ambient temperature comprises:
if the opening state of the air conditioning system is opening, comparing the real-time environment temperature with a preset environment threshold temperature;
if the real-time environment temperature reaches the preset environment threshold temperature, determining a fifth preset radiator threshold temperature and a sixth preset radiator threshold temperature as target radiator threshold temperatures;
if the real-time environment temperature does not reach the preset environment threshold temperature, determining a first preset radiator threshold temperature and a second preset radiator threshold temperature as target radiator threshold temperatures;
Wherein the fifth preset radiator threshold temperature is less than the sixth preset radiator threshold temperature; the fifth preset radiator threshold temperature is less than the first preset radiator threshold temperature; the sixth preset radiator threshold temperature is less than the second preset radiator threshold temperature.
4. The control method according to claim 2, wherein the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
if the real-time radiator temperature reaches a first preset radiator threshold temperature and does not reach a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a first preset rotating speed;
if the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a second preset rotating speed; the first predetermined rotational speed is less than the second predetermined rotational speed.
5. The control method according to claim 2, wherein the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the third preset radiator threshold temperature and the fourth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the third preset radiator threshold temperature and the fourth radiator threshold temperature;
if the real-time radiator temperature reaches a third preset radiator threshold temperature and does not reach a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a third preset rotating speed;
if the real-time radiator temperature reaches a fourth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fourth preset rotating speed; the third predetermined rotational speed is less than the fourth predetermined rotational speed.
6. The control method according to claim 3, wherein the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
Comparing the real-time radiator temperature with the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature when the corresponding target radiator threshold temperature is the fifth preset radiator threshold temperature and the sixth preset radiator threshold temperature;
if the real-time radiator temperature reaches a fifth preset radiator threshold temperature and does not reach a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a fifth preset rotating speed;
if the real-time radiator temperature reaches a sixth preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a sixth preset rotating speed; the fifth predetermined rotational speed is less than the sixth predetermined rotational speed.
7. The control method according to claim 3, wherein the determining the target rotation speed of the electronic fan based on the magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature includes:
comparing the real-time radiator temperature with the first preset radiator threshold temperature and the second preset radiator threshold temperature when the corresponding target radiator threshold temperature is the first preset radiator threshold temperature and the second preset radiator threshold temperature;
If the real-time radiator temperature reaches the first preset radiator threshold temperature and does not reach the second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is a seventh preset rotating speed;
if the real-time radiator temperature reaches a second preset radiator threshold temperature, determining that the target rotating speed of the electronic fan is an eighth preset rotating speed; the seventh predetermined rotational speed is less than the eighth predetermined rotational speed.
8. A control device for an electronic fan in a thermal management system, the control device comprising:
the acquisition module is used for acquiring the real-time environment temperature of the environment where the thermal management system is located and the real-time radiator temperature of the radiator in the motor system in the thermal management system;
the detection module is used for detecting the opening state of the air conditioning system in the thermal management system in real time;
a threshold temperature determining module for determining a corresponding target radiator threshold temperature based on an on state of the air conditioning system and the real-time ambient temperature;
a target rotation speed determining module, configured to determine a target rotation speed of the electronic fan based on a magnitude relation between the real-time radiator temperature and the corresponding target radiator threshold temperature;
And the control module is used for controlling the electronic fan to rotate according to the target rotating speed of the electronic fan.
9. An electronic device, comprising: a processor, a memory and a bus, said memory storing machine readable instructions executable by said processor, said processor and said memory communicating via said bus when the electronic device is running, said machine readable instructions when executed by said processor performing the steps of the method of controlling an electronic fan in a thermal management system according to any one of claims 1 to 7.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when being executed by a processor, performs the steps of the method of controlling an electronic fan in a thermal management system according to any one of claims 1 to 7.
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| CN202311520407.2A CN117514882A (en) | 2023-11-15 | 2023-11-15 | Control method and control device for electronic fan in thermal management system |
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| CN202311520407.2A CN117514882A (en) | 2023-11-15 | 2023-11-15 | Control method and control device for electronic fan in thermal management system |
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