CN116085104A

CN116085104A - Cooling fan control strategy, device, equipment, medium and vehicle

Info

Publication number: CN116085104A
Application number: CN202310187553.1A
Authority: CN
Inventors: 李学伟
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-05-09

Abstract

The application provides a cooling fan control strategy, a device, equipment, a medium and a vehicle, wherein the cooling fan comprises a mounting part and fan blades uniformly distributed along the circumferential direction of the mounting part, an angle adjusting piece for controlling the inclination angle of the fan blades is arranged on the cooling fan, and an air cooling mechanism of the vehicle can output cooling air flow from the guide surfaces of the fan blades after sequentially passing through an air flow channel of the mounting part and an air flow channel of the fan blades; the strategy comprises the steps of obtaining a current speed signal of a vehicle and the temperature of cooling liquid; determining a temperature regulation mode according to the vehicle speed signal and the temperature of the cooling liquid; sending a temperature adjusting signal corresponding to the temperature adjusting mode to the angle adjusting piece so that the angle adjusting piece drives the fan blade to incline relative to the mounting part; and/or sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism so that the air cooling mechanism inputs cooling air flow to the mounting part. According to the cooling fan control strategy, the cooling framework of the cooling fan can be optimized more reasonably, and the overall cooling efficiency of the vehicle is improved.

Description

Cooling fan control strategy, device, equipment, medium and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a cooling fan control strategy, a cooling fan control device, cooling fan control equipment, cooling fan control medium and a vehicle.

Background

The vehicle cooling fan is a main air side power source of the front end cooling module of the vehicle, provides cooling air quantity for a condenser, an intercooler, a radiator and the like, and can reduce the temperature of parts in an engine compartment, and therefore, the cooling fan occupies an indispensable important position in a cooling and radiating system.

In the prior art, the cooling fan is accelerated by the air flow (hereinafter referred to as ring temperature air) with the cutting environment temperature driven by the motor and then cooled by the cooling module, however, under the condition of the high-temperature environment extremely-speed running working condition of the whole vehicle, for example, on a meeting place of a NASCAR (National Association for Stock Car Auto Racing, national sports automobile racing), the extremely-speed of the racing car can reach 300KM/h, the engine runs close to the highest power, the heat generation amount reaches the highest, the cooling fan is limited by the external high-temperature environment condition, the air temperature through the cooling module is higher, and the cooling structure of the cooling fan cannot be adjusted in a targeted manner by the current vehicle central control strategy, so that the cooling regulation performance of the vehicle is poor.

Disclosure of Invention

In view of the foregoing, an objective of the present application is to provide a cooling fan control strategy to solve the problem of poor cooling regulation performance of the vehicle in the related art.

Based on the above purpose, the application provides a cooling fan control strategy, wherein the cooling fan comprises a mounting part and blades uniformly distributed along the circumferential direction of the mounting part, an angle adjusting piece for controlling the inclination angle of the blades is arranged on the cooling fan, and an air cooling mechanism of a vehicle can output cooling air flow from the flow guide surfaces of the blades after sequentially passing through the air flow channels of the mounting part and the air flow channels of the blades; wherein the policy comprises:

acquiring a current speed signal of a vehicle and the temperature of cooling liquid;

determining a temperature regulation mode according to the vehicle speed signal and the temperature of the cooling liquid;

sending a temperature adjusting signal corresponding to the temperature adjusting mode to the angle adjusting piece so that the angle adjusting piece drives the fan blade to incline relative to the mounting part; and/or the number of the groups of groups,

and sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism so that the air cooling mechanism inputs cooling air flow to the mounting part.

Further, the acquiring the current speed signal and the cooling liquid temperature of the vehicle includes:

and responding to the vehicle speed signal being greater than a first threshold value and the temperature of the cooling liquid of the vehicle being greater than a second threshold value, sending an alarm signal to the vehicle-machine interaction platform.

Further, the responding to the vehicle speed signal being greater than the first threshold value and the cooling liquid temperature of the vehicle being greater than the second threshold value, sends out an alarm signal to the vehicle-computer interaction platform, and then comprises:

Acquiring the current temperature of a cooling liquid of a vehicle;

and outputting a speed limiting signal to the power system to reduce the current torque of the power system in response to the coolant temperature of the vehicle being greater than the second threshold and the vehicle duration being greater than the third threshold.

Further, the determining the temperature adjustment mode according to the vehicle speed signal and the coolant temperature includes:

determining a first preset interval in which the vehicle speed signal is located according to the vehicle speed signal, determining a second preset interval in which the vehicle speed signal is located according to the temperature of the cooling liquid, and determining a corresponding temperature regulation mode according to the first preset interval and the second preset interval, wherein the first preset interval and the second preset interval are multiple.

Further, the air cooling mechanism comprises an air pressure regulating valve, and the temperature regulating signal comprises opening data of the air pressure regulating valve and ventilation refrigerating power; the sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism to enable the air cooling mechanism to input cooling air flow to the mounting part includes:

and sending a temperature regulation signal corresponding to the temperature regulation mode to an air cooling mechanism, so that the air cooling mechanism conveys cooling air flow to the installation part according to the ventilation and refrigeration power corresponding to the temperature regulation mode, and the air pressure regulating valve regulates the opening according to the opening data of the air pressure regulating valve corresponding to the temperature regulation mode.

Further, the temperature adjustment signal includes angle adjustment data of the angle adjustment member, the sending of the temperature adjustment signal corresponding to the temperature adjustment mode to the angle adjustment member, so that the angle adjustment member drives the fan blade to incline relative to the mounting portion, includes:

and sending a temperature adjusting signal corresponding to the temperature adjusting mode to an angle adjusting piece so that the angle adjusting piece drives the fan blades to incline according to the angle adjusting data corresponding to the temperature adjusting mode.

Based on the same inventive concept, the present application also provides a cooling fan control apparatus, including:

the detection module is configured to acquire a current speed signal of the vehicle and the temperature of the cooling liquid;

a processing module configured to determine a temperature adjustment mode based on the vehicle speed signal and the coolant temperature;

the signal sending module is configured to send a temperature adjusting signal corresponding to the temperature adjusting mode to the angle adjusting piece so that the angle adjusting piece drives the fan blade to incline relative to the mounting part; and/or sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism so that the air cooling mechanism inputs cooling air flow to the mounting part.

Based on the same inventive concept, the present disclosure also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method as described above when executing the computer program.

Based on the same inventive concept, the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method as described above.

From the above, it can be seen that, the cooling fan control strategy provided by the application judges whether the current cooling state of the vehicle is reasonable according to the speed signal of the vehicle and the temperature of the cooling liquid, and after determining the temperature regulation mode according to the speed signal and the temperature of the cooling liquid, the angle regulating piece is controlled to drive the fan blade to incline and/or the air cooling mechanism is controlled to convey cooling air flow to the fan blade, so that the cooling heat exchange effect of the cooling fan on the high-temperature air flow can be enhanced, the cooling architecture of the cooling fan is optimized more reasonably, and the overall cooling efficiency of the vehicle is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present application or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is a schematic diagram illustrating steps of a cooling fan control strategy according to an embodiment of the present application;

FIG. 2 is a schematic overall flow diagram of a cooling fan control strategy according to an embodiment of the present disclosure;

FIG. 3 is a perspective view of a cooling fan according to an embodiment of the present application;

FIG. 4 is a front view of a cooling fan according to an embodiment of the present application;

FIG. 5 is a front view of a cooling fan according to an embodiment of the present application;

FIG. 6 is a block diagram of a cooling fan control apparatus in an embodiment of the present application;

fig. 7 is a schematic diagram of a hardware structure of an electronic device in an embodiment of the present application.

Description of the reference numerals

1. A fan main body; 11. a mounting part; 12. an air flow inlet;

2. a fan blade; 21. a flow guiding surface; 22. an air flow outlet;

3. an angle adjusting member; 4. an airflow guide; 5. a detection module; 6. a processing module; 7. a signal transmitting module;

1010. a processor; 1020. a memory; 1030. an input/output interface; 1040. a communication interface; 1050. a bus.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "first," "second," and the like, as used in embodiments of the present application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Embodiments of the present application are described in detail below with reference to the accompanying drawings.

In one or more embodiments of the present application, a cooling fan control strategy is provided, where the cooling fan includes a mounting portion and fan blades 2 uniformly distributed along a circumferential direction of the mounting portion 11, an angle adjusting member 3 for controlling an inclination angle of the fan blades 2 is disposed on the cooling fan, and an air cooling mechanism of a vehicle can sequentially output cooling air flow from a flow guiding surface 21 of the fan blades 2 after passing through an air flow channel in the mounting portion 11 and an air flow channel in the fan blades 2.

As shown in fig. 1, the cooling fan control strategy provided in the present application includes:

s100, acquiring a current speed signal of a vehicle and the temperature of cooling liquid;

s200, determining a temperature regulation mode according to a vehicle speed signal and the temperature of the cooling liquid;

s300, sending a temperature adjusting signal corresponding to the temperature adjusting mode to the angle adjusting piece 3 so that the angle adjusting piece 3 drives the fan blade 2 to incline relative to the mounting part 11; and/or sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air-cooling mechanism so that the air-cooling mechanism inputs the cooling air flow to the mounting portion 11.

From the above, it can be seen that, the cooling fan control strategy provided by the application judges whether the current cooling state of the vehicle is reasonable according to the speed signal of the vehicle and the temperature of the cooling liquid, and after determining the temperature regulation mode according to the speed signal of the vehicle and the temperature of the cooling liquid, the angle regulating part 3 is controlled to drive the fan blade 2 to incline and/or the air cooling mechanism is controlled to convey cooling air flow to the fan blade 2, so that the cooling heat exchange effect of the cooling fan on the high-temperature air flow can be enhanced, the cooling architecture of the cooling fan is optimized more reasonably, and the overall cooling efficiency of the vehicle is improved.

It should be noted that, the cooling fan control strategy provided by the application is provided for a scene that the current speed signal of the vehicle is not 0, when the current speed signal of the vehicle is 0km/h, the vehicle does not run, and heat is not generated, and no active regulation means are needed for the cooling fan. In addition, the cooling liquid generally flows through the vehicle engine to exchange heat with the engine, so that the engine is cooled, and the excessive temperature of the cooling liquid proves that the working ring temperature of the engine of the current vehicle is too high, so that the cooling performance of the vehicle can be effectively controlled by judging the current engine state of the vehicle through detecting the vehicle speed signal and the temperature of the cooling liquid, and the normal running of the vehicle is guaranteed.

In some embodiments, the vehicle speed signal and the coolant temperature of the vehicle may be monitored by sensors provided on the vehicle body in the prior art, for example, the vehicle speed signal may be measured by a rotational speed sensor of the vehicle, and the coolant temperature may be measured by a temperature sensor provided on a cooling system line of the vehicle. The mode of acquiring the vehicle speed information and the temperature of the cooling liquid can be real-time acquisition or periodic fixed-frequency acquisition.

In some embodiments, in step S100, it includes:

responding to the vehicle speed signal being smaller than or equal to a first threshold value, and acquiring the current cooling liquid temperature of the vehicle;

In the above embodiment, the first threshold is 200km/h, the driving scene smaller than the first threshold does not include the case that the vehicle speed is 0km/h, and the second threshold is 130 ℃. The acquired current vehicle speed signal comprises the following two scenes: the vehicle speed signal is more than 0km/h and less than or equal to 200km/h, or the vehicle speed signal is more than 200km/h. When the vehicle speed signal is greater than 0km/h and less than or equal to 200km/h, namely the vehicle speed signal is less than or equal to a first threshold value, the current cooling liquid temperature of the vehicle is obtained at the moment, and then the subsequent strategy regulation and control work is carried out according to the vehicle speed signal and the cooling liquid temperature.

When the vehicle speed signal is greater than 200km/h, namely the vehicle speed signal is greater than a first threshold value, the temperature of the cooled cooling liquid is actively regulated and controlled to be higher than 130 ℃ due to the fact that the vehicle is in an overtemperature and extremely fast driving scene, the temperature is still higher than the highest temperature acceptable to the vehicle, and at the moment, a vehicle-to-machine system can remind a driver of severe overtemperature of the cooling system through a vehicle-to-machine interaction platform (such as an instrument, a voice system and the like) to remind the driver of reducing the vehicle speed or adapting to stop the vehicle for heat dissipation; and repeating the control strategy of the cooling fan after the vehicle speed is reduced and the temperature of the cooling liquid is lower than 130 ℃. This arrangement can avoid the problem of shortening the component life caused by insufficient heat dissipation of high temperature heat due to long-term driving of the vehicle.

Further, based on the description of the above embodiment, the method further includes the steps of:

acquiring the current temperature of a cooling liquid of a vehicle;

Illustratively, the second threshold is still 130 ℃, and the third threshold is 10 mi. The steps are suitable for a scene that the driver still continues to run at a high speed after receiving the overtemperature early warning signal. In this scene, when the temperature of the cooling liquid of the vehicle is higher than 130 ℃ and the continuous running time of the vehicle in the state of the temperature of the cooling liquid is longer than 10mi, the vehicle can not fully discharge the high-temperature heat of the vehicle after actively regulating and controlling the cooling fan or other means to cool down, and on the basis, the current torque of the power system is reduced by outputting a speed limiting signal, so that the running speed of the vehicle is forcibly reduced, and the auxiliary cooling and decelerating functions are realized.

Here, the setting of the third threshold may be comprehensively determined according to factors such as the temperature environment in which the actual vehicle is located, the driving road condition, and the like, which is only illustrated in the embodiment.

In the above embodiment, in order to avoid the driver from continuously traveling in an overtemperature scene in an emergency situation, a speed release switch may be provided at the steering wheel or the instrument panel, that is, the torque down effect on the power system may be released by turning on the speed release switch when the driver does not need to forcibly slow down to dissipate heat. In addition, the setting of the first threshold, the second threshold and the third threshold is merely taken as an example, and the three thresholds can be flexibly set by combining factors such as actual vehicle type, road condition and vehicle condition, season and driving time, and the first threshold can be selected to be 150km/h when the environment temperature is 37 ℃ in summer and the vehicle has driven for a long time, so that the vehicle temperature is reduced as much as possible and a good heat dissipation state is maintained.

In some embodiments, in step S200, the determining a temperature adjustment mode according to the vehicle speed signal and the coolant temperature includes:

determining a first preset section where the vehicle speed signal is located according to the vehicle speed signal, determining a second preset section where the vehicle speed signal is located according to the temperature of the cooling liquid, and determining corresponding temperature regulation modes according to the first preset section and the second preset section, wherein the first preset section and the second preset section are multiple, and the different temperature regulation modes corresponding to the first preset section and the second preset section are different.

In the above description, as an exemplary description, the plurality of first preset intervals corresponding to the vehicle speed signals of the vehicle may include the following driving scenarios:

a: the vehicle speed signal shows that the current vehicle speed v is 0km/h < v less than or equal to 100km/h;

the vehicle speed signal shows that the current vehicle speed v is 100km/h < v < 140km/h;

the vehicle speed signal shows that the current vehicle speed v is 140km/h which is less than v and less than or equal to 200km/h;

and D, the vehicle speed signal shows that the current vehicle speed v of the vehicle is v & gt 200km/h.

Further, the plurality of second preset intervals corresponding to the coolant temperature of the vehicle may include the following several scenarios:

the temperature T of the cooling liquid of the vehicle is more than 0 ℃ and less than or equal to 105 ℃;

The temperature T of the cooling liquid of the vehicle is more than 105 ℃ and less than or equal to 110 ℃;

c, the temperature T of the cooling liquid of the vehicle is 110 ℃ and is less than or equal to 120 ℃;

d, the temperature T of the cooling liquid of the vehicle is 120 ℃ which is more than or equal to 130 ℃;

e, the temperature T of the cooling liquid of the vehicle is more than 130 ℃.

For the setting of the first preset interval and the second preset interval, the vehicle is in a first temperature regulation mode corresponding to the A scene and the a scene, is in a second temperature regulation mode corresponding to the B scene and the B scene, is in a third temperature regulation mode corresponding to the C scene and the C scene, is in a fourth temperature regulation mode corresponding to the D scene and the D scene, and is in a fifth temperature regulation mode corresponding to the D scene and the e scene.

When the vehicle determines that the fifth temperature adjustment mode is set, that is, the vehicle speed signal is set in the D scene and the vehicle coolant temperature is set in the e scene, the vehicle is set in the above-mentioned super-temperature and extreme-speed driving scene, and thus the vehicle system can execute the above-mentioned operations of sending out the warning signal and/or limiting speed torque.

Through the arrangement, the vehicle-mounted system can select a corresponding temperature regulation mode according to the speed information of the vehicle and the temperature of the cooling liquid, so that the cooling effect of the cooling fan is ensured as much as possible, and the problems that the electric oil gas resource of the vehicle is wasted or the cooling power of the cooling fan is too small to sufficiently exchange heat with high-temperature air and dissipate heat due to the fact that the cooling power of the cooling fan is too large are avoided. Meanwhile, the first preset section and the second preset section of different ladder section positions are set, so that the distribution path corresponding to cooling of the cooling fan can be more clear, the vehicle-mounted system can respond quickly according to the current vehicle condition, and the processing speed of the vehicle-mounted system is improved.

It should be noted that, in this embodiment, as an exemplary illustration, the first preset interval corresponding to the vehicle speed signal is identified as A, B, C, D four scenes, and the second preset interval corresponding to the coolant temperature is identified as a, b, c, d, e five scenes, and in other embodiments, the scenes and the ranges of the first preset interval and the second preset interval may be flexibly set according to the actual driving scene, for example, two kinds of first preset intervals of 0km/h-140km/h, greater than 140km/h, or two kinds of second preset intervals of 0 ℃ to 120 ℃ and greater than 120 ℃, etc.

In the step S300, the air cooling mechanism includes an air pressure adjusting valve, and the temperature adjusting signal includes opening data of the air pressure adjusting valve and ventilation and refrigeration power; the sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism to enable the air cooling mechanism to input cooling air flow to the mounting part includes:

and sending a temperature adjustment signal corresponding to the temperature adjustment mode to an air cooling mechanism, so that the air cooling mechanism conveys cooling air flow to the mounting part 11 according to the ventilation and refrigeration power corresponding to the temperature adjustment mode, and the air pressure adjusting valve adjusts the opening according to the opening data of the air pressure adjusting valve corresponding to the temperature adjustment mode.

In the above steps, the air cooling mechanism delivering the cooling air flow through the blades 2 of the cooling fan may be performed as follows: an air flow passage is provided in the cooling fan mounting portion 11 and the fan blade 2, a plurality of air flow outlets 22 are provided in the air flow guiding surface 21 of the fan blade 2, and an output end of the air cooling mechanism communicates with the air flow passage of the cooling fan mounting portion 11 and is output from an opening in the air flow guiding surface 21 of the fan blade 2 via the air flow passage of the fan blade 2. Of course, this is only exemplified in the present application, and the cooling air flow may be directly output to the fan blade 2 by the air cooling mechanism.

The opposite impact adjusting effect of the air cooling mechanism on the cooling air flow of the cooling fan is reflected in the aspects of temperature or air flow output pressure of the cooling air flow, and as an exemplary illustration, a wind pressure adjusting valve is arranged on a cooling air flow conveying pipeline of the air cooling mechanism, and the wind pressure adjusting valve is used for realizing output control on the cooling air flow by adjusting the output cooling air flow pressure of the air cooling mechanism. Of course, the air cooling mechanism can also directly adjust the temperature of the cooling air flow to realize the cooling effect change of the cooling fan.

In addition, in the foregoing step S300, the temperature adjustment signal includes angle adjustment data of the angle adjustment member 3, and the sending the temperature adjustment signal corresponding to the temperature adjustment mode to the angle adjustment member 3 so that the angle adjustment member 3 drives the fan blade 2 to tilt relative to the mounting portion includes:

And sending a temperature regulation signal corresponding to the temperature regulation mode to the angle regulation part 3 so that the angle regulation part 3 drives the fan blades 2 to incline according to the angle regulation data corresponding to the temperature regulation mode.

In the above steps, the angle adjusting member 3 adjusts the inclination angle of the fan blade 2 to change the angle of the fan blade 2 of the cooling fan, and it should be noted that the inclination angle of the fan blade 2 refers to the inclination angle of the fan blade 2 relative to the opposite direction of the ambient air, and the fan blade 2 is inclined along the radial direction of the axis of the body around the mounting portion 11, and the inclination angle of the angle adjusting member 3 adjusts the inclination angle of the fan blade 2, so that the resistance of the flow guiding surface 21 of the fan blade 2 relative to the ambient air can be adjusted, thereby being beneficial to adjusting the inclination angle of the fan blade 2 under the condition of a very fast vehicle, so that the high Wen Huanwen air can pass through the cooling fan as soon as possible, and the air accumulation of the high Wen Huanwen is reduced.

The angle of inclination adjustment of the fan blades 2 is generally in the range of 0 ° to 90 °. Taking fig. 4 and fig. 5 as an example, in fig. 4, the inclination angle of the fan blade 22 is 0 °, when the fan blade 22 is at the position, the flow guiding surface 2121 of the fan blade 22 is completely perpendicular to the airflow direction of the ring temperature air, and at this time, the wind resistance of the cooling fan received by the ring temperature air is maximum; in fig. 5, the inclination angle of the fan blade 22 is 90 °, and when the fan blade 22 is at this position, the flow guiding surface 2121 of the fan blade 22 is completely parallel to the airflow direction of the ambient air, and at this time, the wind resistance of the cooling fan received by the ambient air is minimal. The above examples of inclination angles are all described in this application.

In the above steps, the air cooling mechanism and the angle adjusting member 3 may simultaneously act on the cooling fan adjustment, for example, the air cooling mechanism delivers an air flow to the cooling fan while the angle adjusting member 3 adjusts the inclination angle of the cooling fan; one of the cooling fans can be selected to adjust.

As an exemplary illustration, as shown in fig. 2, the temperature adjustment modes of the air cooling mechanism and the angle adjusting member 3 include the following scenarios:

(1) Judging that the speed information v of the vehicle is more than 0km/h and less than or equal to 100km/h, detecting that the temperature T of the cooling liquid of the vehicle is more than 0 ℃ and less than or equal to 105 ℃, and at the moment, the vehicle is in the middle-low speed stable running process without any active adjustment action on a cooling fan;

(2) Judging that the speed information v of the vehicle is 100km/h which is less than or equal to 140km/h, detecting that the temperature T of cooling liquid of the vehicle is 105 ℃ which is less than or equal to 110 ℃, at the moment, initially generating heat by the vehicle, starting an air cooling mechanism, enabling an air pressure regulating valve to control the output pressure of air flow to be 70kpa, and controlling the inclination angle of the fan blade 2 to be 0-30 DEG through an angle regulating piece 3;

(3) Judging that the speed information v of the vehicle is 140km/h which is less than v and less than or equal to 200km/h, detecting that the temperature T of cooling liquid of the vehicle is 110 ℃ which is less than or equal to 120 ℃, generating backlog heat by the vehicle, enabling the temperature of ambient temperature air in the vehicle to rise extremely rapidly, starting an air cooling mechanism, enabling an air pressure regulating valve to control the output pressure of air flow to be 120kpa, and controlling the inclination angle of a fan blade 2 to be 30-70 ℃ through an angle regulating piece 3;

(4) Judging that the speed information v of the vehicle is more than 200km/h, detecting that the temperature T of cooling liquid of the vehicle is 120 ℃ < T less than or equal to 130 ℃, at the moment, under the condition that the vehicle runs at high temperature and high speed, starting an air cooling mechanism, enabling an air pressure regulating valve to control the output pressure of air flow to be 160kpa, and controlling the inclination angle of the fan blade 2 to be 90 degrees through an angle regulating piece 3.

(5) Judging that the speed information v of the vehicle is v & gt 200km/h, detecting that the temperature T of cooling liquid of the vehicle is T & gt 130 ℃, and when the vehicle is in an overtemperature and extremely-speed running condition, the cooling temperature in the vehicle exceeds the highest cooling performance of a cooling system, and synchronously executing the operations of sending out warning signals, limiting speed torque and the like by the vehicle machine system under the condition of keeping the adjusting action of a scene (4).

In the above-described embodiment, the manner in which the control airflow output pressure of the wind pressure regulating valve is controlled may be controlled by the opening degree of the wind pressure regulating valve, for example, the control of the airflow output pressure is achieved by adjusting the opening percentage of the wind pressure regulating valve; the larger the opening degree of the wind pressure regulating valve is, the larger the air output of the air cooling mechanism is, and the higher the cooling efficiency rate of the cooling fan is.

In addition, the air flow output duration of the air cooling mechanism and the duration of maintaining the current inclination angle of the angle adjusting piece 3 can be flexibly adjusted according to the environmental temperature information, the output power and other factors, and the air cooling mechanism or the angle adjusting piece 3 can be correspondingly adjusted according to the real-time detected vehicle speed information and the cooling liquid temperature information.

In the above embodiment, the adjusting actions of the air cooling mechanism and the angle adjusting member 3 in different scenes may be combined correspondingly, for example, in the scene (3), the inclination angle of the fan blades 2 adjusted by the angle adjusting member 3 may be 0 ° -30 °, and correspondingly, the air pressure adjusting valve of the air cooling mechanism controls the output cooling air flow pressure to increase, so that the good cooling effect of the cooling fan is maintained.

In some embodiments, the temperature adjustment signal may adjust the cooling air flow temperature of the air cooling mechanism and the air pressure adjustment valve synchronously, thereby increasing the cooling rate of the air cooling mechanism, and illustratively, increasing the cooling power of the air cooling mechanism to decrease the cooling air flow temperature, and adjusting the air pressure adjustment valve to increase the output air flow pressure, which may enable the cooling fan to cool the ambient temperature air faster than simply adjusting the air pressure adjustment valve.

It should be noted that, in the above embodiment, only a control strategy of the cooling fan is exemplarily described, and in some embodiments, when the vehicle is in the scene (2), only the air cooling mechanism may be turned on without controlling the action of the angle adjusting member 3, or only the action of the angle adjusting member 3 may be controlled without turning on the air cooling mechanism; when the vehicle is in the scene (3), the air pressure regulating element of the air cooling mechanism can control the output air flow pressure to be maximum (160 kpa), the angle regulating element 3 only regulates the inclination angle of the fan blade 2 to be 0-30 degrees and the like, and for different first preset intervals and second preset intervals, the temperature regulating modes of the air cooling mechanism and the angle regulating element 3 can be flexibly set, and no absolute limitation is made on the temperature regulating modes in the embodiment.

In the above-described embodiment, the first preset section and the second preset section are described as the reference examples, and in general, the vehicle speed signal of the vehicle is proportional to the coolant temperature of the vehicle; in some embodiments, there may be a long-term medium-low speed running scene of the vehicle in a high temperature environment in summer, where the vehicle speed signal is in the interval of 0km/h < v.ltoreq.100 km/h, and the cooling liquid temperature T is in the interval of 105 ℃. Ltoreq.110 ℃, so long as the corresponding air cooling mechanism and the angle adjusting member 3 are controlled to adjust the cooling fan, so that the cooling fan can sufficiently cool the ambient temperature air.

It should be noted that, the method of the embodiments of the present application may be performed by a single device, for example, a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the methods of embodiments of the present application, and the devices may interact with each other to complete the methods.

It should be noted that some embodiments of the present application are described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Based on the same inventive concept, the present application also provides a cooling fan for being mounted in a cooling device of a vehicle to discharge heat generated from the vehicle by a convection effect of the cooling fan.

As shown in fig. 3 to 5, the cooling fan provided by the application comprises a fan main body 1 and a plurality of fan blades 2, wherein an installation part 11 is arranged in the fan main body 1, and the installation part 11 is used for being connected with an output end of a driving motor in a synchronous rotation manner; the fan blades 2 are arranged on the mounting part 11 and are uniformly arranged along the circumferential direction of the mounting part 11; the installation part 11 is provided with an air inlet 12 for communicating with the cooling module, the guide surface 21 of the fan blade 2 is provided with an air outlet 22, a first air flow channel is arranged in the installation part 11, a second air flow channel is arranged in the fan blade 2, and the air inlet 12 is communicated with the air outlet 22 through the first air flow channel and the second air flow channel.

As can be seen from the above, in the cooling fan provided by the present application, by arranging the air inlet 12 on the mounting portion 11 and arranging the air outlet 22 on the flow guiding surface 21 of the fan blade 2, the air flow of the cooling module can be input from the air inlet 12 and output from the air outlet 22 via the first air flow channel and the second air flow channel, so that the cooling air flow of the cooling module can be fully contacted with the ambient temperature air for heat exchange, and therefore, the cooling fan and the heat exchange air flow synchronously cool the ambient temperature air, thereby effectively improving the heat dissipation efficiency and avoiding the increase of the water temperature of the vehicle; in addition, through the cooling fan, the vehicle-mounted system can control the airflow output quantity and the airflow output rate of the cooling module according to the actual vehicle running state and the current environment temperature, so that the air side temperature of the cooling module can be regulated and controlled more intelligently, and the intelligent control level and the intelligent control capability of the water temperature of the cooling system are improved.

In the above embodiment, the fan main body 1 may be a conventional and mature integral injection molding fan housing structure with a housing, the mounting portion 11 is located on the central axis of the fan main body 1, and the output shaft of the driving motor is coaxial with the central axis of the mounting portion 11, where the connection manner of the mounting portion 11 and the output shaft of the driving motor may be a key fit connection, or a socket fit connection, or the like, so long as the mounting portion 11 can be driven to rotate synchronously by the output shaft of the driving motor.

In some embodiments, as shown in fig. 3, the fan blade 2 includes two opposite guide surfaces 21, and a plurality of air flow outlets 22 are uniformly arranged on each guide surface 21.

In the above embodiment, the guide surface 21 is the end surface that is in direct contact with the ambient air and guides the ambient air flow through the cooling fan, and since the guide surface 21 is in direct contact with the ambient air, the air flow outlet 22 is directly provided on the guide surface 21, so that the air flow of the cooling module can be more fully in contact with the ambient air for heat exchange.

In addition, the air flow outlet 22 may be provided only on the one side guide surface 21 of the fan blade 2, or the air flow outlet 22 may be provided at other positions of the fan blade 2 than the guide surface 21, so long as the effect of heat exchange by contact with the ambient air can be achieved; the airflow outlets 22 on the fan blade 2 may be a plurality of airflow outlets uniformly arranged as shown in fig. 3, or only one airflow outlet 22 may be provided on the fan blade 2, and when one airflow outlet 22 is provided, the airflow outlet 22 is in the shape of an elongated strip extending along the length direction of the fan blade 2.

In some embodiments, instead of disposing the air outlets 22 on each fan blade 2 correspondingly, according to the number of the actual fan blades 2 disposed, the air outlets 22 may be disposed on the fan blades 2 with equal intervals, for example, four fan blades 2 are disposed in total in fig. 3, and in fig. 3, the air outlets 22 may be disposed on each fan blade 2, or the air outlets 22 may be disposed on only one group in pairs. The arrangement can better balance the cooling effect and the manufacturing cost, so that a proper implementation mode can be selected by a vehicle enterprise according to the actual vehicle state.

In the above embodiment, the cooling module refers to an air cooling mechanism related to a heat pump air conditioning system, a refrigeration device, and the like of a vehicle, and low-temperature cooling air flow generated by the air cooling mechanism is input into the mounting portion 11 through the air flow inlet 12, where the air flow inlet 12 is communicated with an output end of the cooling module through a rotatable joint so as to avoid affecting normal rotation of the mounting portion 11.

It should be noted that, for convenience of description in this application, the shape of the fan blade 2 is a planar plate type fan blade 2 in fig. 3, in some embodiments, the flow guiding surface 21 of the fan blade 2 may also be configured as an arc surface with a certain bending angle, and the specific shape of the fan blade 2 is not limited in this embodiment.

In addition, in order to further improve the air flow conveying effect of the cooling module, a booster pump can be added between the cooling module and the cooling fan, and the booster pump is utilized to boost the air flow rate of the cooling module.

In some embodiments, as shown in fig. 3, the fan blade 2 and the mounting portion 11 are rotatably connected via an angle adjusting member 3, and the angle adjusting member 3 is used to drive the fan blade 2 to tilt relative to the mounting portion 11 so as to adjust the tilt angle of the fan blade 2. In this embodiment, the inclination angle is adjusted based on the guide surface 21 of the fan blade 2, specifically, because the guide surface 21 of the fan blade 2 contacts with the ring temperature air and cooperates with the ring temperature air, in the running process of the vehicle, the inclination angle of the fan blade 2 is adjusted to reduce the air resistance to the ring temperature air while maintaining the guide effect, and the fan blade 2 passes through more ring temperature air in the same time, thereby being beneficial to improving the cooling performance of the whole vehicle.

Based on the above description, in some embodiments, the adjusting end of the angle adjusting member 3 is connected to the fan blade 2, the fixed end of the angle adjusting member 3 is connected to the mounting portion 11, and the connection harness of the angle adjusting member 3 is connected to an external device via a rotatable joint. Here, the angle adjusting member 3 may be a micro-drive motor, and is fixedly connected to the mounting portion 11 by means of a fastening or welding manner, and rotates synchronously with the mounting portion 11, and when electrically connected to an external device through a rotatable joint, the rotatable joint can avoid the connection harness of the micro-drive motor from affecting the rotation of the mounting portion 11. The rotatable connector may be a conventional 360 ° rotatable conductive connector, which is not described in detail in this embodiment.

In some embodiments, an angle adjusting member 3 is disposed between each fan blade 2 and the mounting portion 11, and each angle adjusting member 3 can correspondingly adjust an inclination angle of one fan blade 2, specifically, the adjustable inclination angle of the fan blade 2 is 0 ° -90 °. Taking fig. 4 and fig. 5 as an example, in fig. 4, the inclination angle of the fan blade 2 is 0 °, when the fan blade 2 is at the position, the flow guiding surface 21 of the fan blade 2 is completely perpendicular to the airflow direction of the ambient air, and at this time, the wind resistance of the cooling fan received by the ambient air is maximum; in fig. 5, the inclination angle of the fan blade 2 is 90 °, and when the fan blade 2 is at the position, the flow guiding surface 21 of the fan blade 2 is completely parallel to the airflow direction of the ambient air, and at this time, the wind resistance of the cooling fan received by the ambient air is minimum.

In the above embodiment, the angle adjusting members 3 may not be provided between each of the blades 2 and the mounting portion 11, but the angle adjusting members 3 may be provided at equally spaced blades 2 according to the number of the actual blades 2. For example, four fan blades 2 are provided in total in fig. 3, two fan blades 2 are provided in a group, only one group of fan blades 2 is provided with an angle adjusting member 3, and the other group of fan blades 2 is not provided with an angle adjusting member 3. The arrangement can better balance the cooling effect and the manufacturing cost, so that a proper implementation mode can be selected by a vehicle enterprise according to the actual vehicle state.

It should be noted that, the two structures of cooling by using air flow and adjusting the angle of the fan blade 2 can be combined, and the vehicle system can flexibly adjust the inclination angle of the fan blade 2 according to the working condition of the vehicle or input cooling air flow to the fan blade 2, thereby improving the cooling effect.

In an exemplary process, the speed of the air flow of the warm air is low, and the inclination angle of the fan blades 2 can be adjusted to be 0 ° -45 ° so that the flow guiding surface 21 of the fan blades 2 is in contact with the warm air as much as possible, and the warm air is driven to exchange heat by the rotation of the cooling fan.

In the process that the vehicle is in a high-speed or even in a very high-speed running process, at this moment, as the air flow rate of the annular temperature air is larger than the flow guiding rate of the cooling fan, the inclination angle of the fan blades 2 is too small, the wind resistance of the fan blades 2 is large, so that a large amount of redundancy of the annular temperature air at the air inlet side of the cooling fan can not dissipate heat rapidly, in the scene, the inclination angle of the fan blades 2 can be adjusted to be 45-90 degrees, and the air flow of the cooling module is started to enable the flow guiding surface 21 of the fan blades 2 to output cooling air flow, and the cooling air flow is used for contacting the annular temperature air to perform heat exchange while the wind resistance is reduced.

Based on the above description, when the angle adjusting member 3 is provided, since the angle adjusting member 3 occupies the connection space between the mounting portion 11 and the fan blade 2, the air flow guide 4 may be provided between the mounting portion 11 and the fan blade 2 to communicate the second air flow passage of the fan blade 2 with the first air flow passage of the mounting portion 11. Here, the air flow guide 4 can adopt engineering plastic material tubulation or stainless steel to weave the hose, and the one end of air flow guide 4 is connected with the exit end of installation department 11, and the other end is connected with the entry end of flabellum 2, sets up air flow guide 4 and can avoid angle adjusting part 3 to influence the normal connection effect of installation department 11 and flabellum 2.

It should be noted that, since the angle adjusting member 3 may drive the fan blade 2 to rotate, the air flow guiding member 4 should be preferably made of a material with elastic deformation capability, and when the angle adjusting member 3 drives the fan blade 2 to rotate, the air flow guiding member 4 can be well adapted to the rotation angle range of the fan blade 2, so as to avoid the air flow guiding member 4 from pulling to interfere with the fan blade.

Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application further provides a cooling fan control apparatus, as shown in fig. 6, including:

a detection module 5 configured to acquire a current vehicle speed signal of the vehicle and a coolant temperature;

A processing module 6 configured to determine a temperature adjustment mode from the vehicle speed signal and the coolant temperature;

a signal transmitting module 7 configured to transmit a temperature adjustment signal corresponding to the temperature adjustment mode to the angle adjustment member so that the angle adjustment member drives the fan blade to incline with respect to the mounting portion; and/or sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism so that the air cooling mechanism inputs cooling air flow to the mounting part.

For convenience of description, the above devices are described as being functionally divided into various modules, respectively. Of course, the functions of each module may be implemented in the same piece or pieces of software and/or hardware when implementing the present application.

The device of the foregoing embodiment is used for implementing the corresponding cooling fan control strategy in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.

Based on the same inventive concept, the application also provides an electronic device corresponding to the method of any embodiment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the cooling fan control strategy of any embodiment when executing the program.

Fig. 7 is a schematic diagram of a hardware structure of an electronic device according to the embodiment, where the device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 implement communication connections therebetween within the device via a bus 1050.

The processor 1010 may be implemented by a general-purpose CPU (Centra l Process I ng Un it ), a microprocessor, an application specific integrated circuit (App l I cat I on Spec I f I C I ntegrated Ci rcu it, AS ic), or one or more integrated circuits, etc., for executing relevant programs to implement the technical solutions provided in the embodiments of the present disclosure.

Memory 1020 may be implemented in the form of ROM (Read On l y Memory ), RAM (Random Access Memory, random access memory), static storage devices, dynamic storage devices, etc. Memory 1020 may store an operating system and other application programs, and when the embodiments of the present specification are implemented in software or firmware, the associated program code is stored in memory 1020 and executed by processor 1010.

The input/output interface 1030 is used to connect with an input/output module for inputting and outputting information. The input/output modules may be configured as components in the device (not shown in fig. 7) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.

Communication interface 1040 is used to connect communication modules (not shown in fig. 7) to enable communication interactions of the present device with other devices. The communication module may implement communication through wired mode (such as USB, network cable, etc.), or may implement communication through wireless mode (such as mobile network, WI F I, bluetooth, etc.).

Bus 1050 includes a path for transferring information between components of the device (e.g., processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).

It should be noted that although the above-described device only shows processor 1010, memory 1020, input/output interface 1030, communication interface 1040, and bus 1050, in an implementation, the device may include other components necessary to achieve proper operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary to implement the embodiments of the present description, and not all the components shown in the drawings.

The electronic device of the foregoing embodiment is configured to implement the corresponding cooling fan control strategy in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.

Based on the same inventive concept, corresponding to any of the above embodiments of the method, the present application further provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to execute the cooling fan control strategy according to any of the above embodiments.

The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.

The storage medium of the above embodiment stores computer instructions for causing the computer to execute the cooling fan control strategy according to any one of the above embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.

Based on the same inventive concept, the present application also provides a vehicle including the cooling fan control apparatus or the electronic device or the computer-readable storage medium as described above.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the present application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

Additionally, well-known power/ground connections to integrated circuit (I C) chips and other components may or may not be shown in the drawings provided to simplify the illustration and discussion, and so as not to obscure the embodiments of the present application. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present application, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform on which the embodiments of the present application are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements and/or the like which are within the spirit and principles of the embodiments are intended to be included within the scope of the present application.

Claims

1. The cooling fan control strategy is characterized in that the cooling fan comprises a mounting part and fan blades uniformly distributed along the circumferential direction of the mounting part, an angle adjusting piece used for controlling the inclination angle of the fan blades is arranged on the cooling fan, and an air cooling mechanism of a vehicle can output cooling air flow from the flow guide surfaces of the fan blades after passing through an air flow channel of the mounting part and an air flow channel of the fan blades in sequence; wherein the policy comprises:

2. The cooling fan control strategy of claim 1, wherein said obtaining a current vehicle speed signal and coolant temperature of the vehicle comprises:

3. The cooling fan control strategy of claim 2, wherein the responding to the vehicle speed signal being greater than the first threshold value and the coolant temperature of the vehicle being greater than the second threshold value, sends an alert signal to the vehicle-to-machine interaction platform, and then comprises:

acquiring the current temperature of a cooling liquid of a vehicle;

4. The cooling fan control strategy of claim 1, wherein said determining a temperature adjustment mode based on a vehicle speed signal and a coolant temperature comprises:

5. The cooling fan control strategy of claim 1, wherein the air cooling mechanism comprises an air pressure regulating valve, and the temperature regulating signal comprises air pressure regulating valve opening data and ventilation refrigeration power; the sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air cooling mechanism to enable the air cooling mechanism to input cooling air flow to the mounting part includes:

6. The cooling fan control strategy of claim 1, wherein the temperature adjustment signal includes angle adjustment data of an angle adjustment member, and the sending the temperature adjustment signal corresponding to the temperature adjustment mode to the angle adjustment member to tilt the angle adjustment member driving fan blade with respect to the mounting portion includes:

7. A cooling fan control apparatus, characterized by comprising:

8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the cooling fan control strategy of any of claims 1 to 6 when executing the program.

9. A computer readable storage medium storing computer instructions for causing a computer to execute the cooling fan control strategy of any one of claims 1 to 6.

10. A vehicle comprising the cooling fan control apparatus according to claim 7, or the electronic device according to claim 8, or the medium according to claim 9.