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

Abstract

The application provides a cooling fan control strategy, device, equipment, medium and vehicle. The cooling fan includes a mounting part and fan blades uniformly distributed along the circumference of the mounting part. The cooling fan is provided with an angle adjustment member for controlling the inclination angle of the fan blade. The vehicle The air-cooling mechanism can output the cooling airflow from the guide surface of the fan blade through the airflow channel of the mounting part and the airflow channel of the fan blade in sequence; the strategy includes obtaining the current vehicle speed signal and coolant temperature of the vehicle; determining according to the vehicle speed signal and coolant temperature temperature adjustment mode; send 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 tilt relative to the installation part; and/or, send the temperature adjustment signal corresponding to the temperature adjustment mode to the fan Cooling mechanism, so that the air-cooling mechanism inputs cooling airflow to the installation part. The cooling fan control strategy of the present application can more reasonably optimize the cooling structure of the cooling fan and improve the overall cooling efficiency of the vehicle.

Description

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

technical field

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

Background technique

The vehicle cooling fan is the main air-side power source of the front-end cooling module of the vehicle. It provides cooling air volume for the condenser, intercooler and radiator, etc., and can reduce the temperature of the parts in the engine compartment. Therefore, the cooling fan plays an important role in the cooling system. occupies an indispensable position.

In the prior art, the cooling fan is driven by the motor to increase the air flow of the cutting ambient temperature (hereinafter referred to as the ambient temperature air) and then cools down through the cooling module. For Stock Car Auto Racing (National Sports Car Competition), the speed of the car will reach 300KM/h, the engine will run close to the maximum power, and the heat production will reach the highest. Due to the external high temperature environment, the temperature of the air passing through the cooling module is relatively high. However, the current vehicle central control strategy cannot adjust the cooling structure of the cooling fan in a targeted manner, resulting in poor vehicle cooling control performance.

Contents of the invention

In view of this, the purpose of this application is to propose a cooling fan control strategy to solve the problem of poor vehicle cooling control performance raised in the background art.

Based on the above purpose, the present application provides a cooling fan control strategy. The cooling fan includes a mounting portion and fan blades uniformly distributed along the circumference of the mounting portion. The cooling fan is provided with an angle adjustment member for controlling the inclination angle of the fan blades. The air cooling mechanism of the vehicle can output the cooling airflow from the guide surface of the fan blade after passing through the airflow channel of the mounting part and the airflow channel of the fan blade in sequence; wherein, the strategy includes:

Obtain the current vehicle speed signal and coolant temperature of the vehicle;

Determine the temperature adjustment mode according to the vehicle speed signal and the coolant temperature;

Sending 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 tilt relative to the installation part; and/or,

A temperature adjustment signal corresponding to the temperature adjustment mode is sent to the air-cooling mechanism, so that the air-cooling mechanism inputs cooling airflow to the installation part.

Further, the acquisition of the current vehicle speed signal and coolant temperature of the vehicle includes:

In response to the vehicle speed signal being greater than the first threshold and the coolant temperature of the vehicle being greater than the second threshold, a warning signal is sent to the vehicle-machine interaction platform.

Further, in response to the vehicle speed signal being greater than the first threshold and the coolant temperature of the vehicle being greater than the second threshold, sending a warning signal to the vehicle-machine interaction platform, and then including:

Obtain the current coolant temperature of the vehicle;

In response to the coolant temperature of the vehicle being greater than the second threshold and the continuous running time of the vehicle greater than the third threshold, a speed limit signal is output to the power system to reduce the current torque of the power system.

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

According to the vehicle speed signal, the first preset interval is determined, the second preset interval is determined according to the coolant temperature, and the corresponding temperature adjustment is determined according to the first preset interval and the second preset interval mode, wherein there are multiple first preset intervals and second preset intervals.

Further, the air-cooling mechanism includes an air pressure regulating valve, and the temperature adjustment signal includes the opening degree data of the air pressure regulating valve and ventilation and cooling power; sending the temperature adjustment signal corresponding to the temperature adjustment mode to the air-cooling mechanism, To make the air-cooling mechanism input cooling airflow to the installation part, including:

Sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air-cooling mechanism, so that the air-cooling mechanism sends cooling airflow to the installation part according to the ventilation and cooling power corresponding to the temperature adjustment mode, and makes the air-cooling mechanism The opening of the air pressure regulating valve is adjusted according to the opening data of the air pressure regulating valve corresponding to the temperature adjustment mode.

Further, the temperature adjustment signal includes angle adjustment data of the angle adjustment member, and sending 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 tilt relative to the installation part includes:

Sending 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 tilt according to the angle adjustment data corresponding to the temperature adjustment mode.

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

A detection module configured to obtain the current vehicle speed signal and coolant temperature of the vehicle;

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

The signal sending module is configured to send 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 tilt relative to the installation part; and/or, send a temperature adjustment signal corresponding to the temperature adjustment mode The signal is sent to the air-cooling mechanism so that the air-cooling mechanism can input cooling airflow to the installation part.

Based on the same inventive concept, the present disclosure also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable by the processor. When the processor executes the computer program, it realizes method as above.

Based on the same inventive concept, the present disclosure also provides a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause a computer to execute the above-mentioned method.

It can be seen from the above that the cooling fan control strategy provided by the present application judges whether the current cooling state of the vehicle is reasonable according to the vehicle speed signal and the coolant temperature, and determines the temperature adjustment mode according to the vehicle speed signal and the coolant temperature. The angle adjuster drives the fan blades to tilt and/or controls the air-cooling mechanism to deliver cooling airflow to the fan blades, thereby enhancing the cooling and heat exchange effect of the cooling fan on the high-temperature airflow, thereby optimizing the cooling structure of the cooling fan more reasonably and improving the vehicle overall cooling efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the present application or related technologies, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or related technologies. Obviously, the accompanying drawings in the following description are only for this application Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

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

FIG. 2 is a schematic diagram of the overall flow of a cooling fan control strategy in an embodiment of the present application;

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

Fig. 4 is the front view of the cooling fan of a certain embodiment of the present application;

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

6 is a block diagram of a cooling fan control device 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.

Explanation of reference signs

1. Fan main body; 11. Installation part; 12. Airflow inlet;

2. Fan blade; 21. Guide surface; 22. Air outlet;

3. Angle adjustment part; 4. Airflow guide part; 5. Detection module; 6. Processing module; 7. Signal sending module;

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

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art to which the present application belongs. "First", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

One or more embodiments of the present application provide a cooling fan control strategy, wherein the cooling fan includes a mounting portion and fan blades 2 uniformly distributed along the circumference of the mounting portion 11, and the cooling fan is provided with The angle adjustment member 3 for the inclination angle of the blade 2, the air cooling mechanism of the vehicle can output the cooling air from the air guide surface 21 of the fan blade 2 after sequentially passing through the air flow channel in the installation part 11 and the air flow channel in the fan blade 2 .

As shown in Figure 1, the cooling fan control strategy provided by this application includes:

S100, acquiring the current vehicle speed signal and coolant temperature of the vehicle;

S200, determining the temperature adjustment mode according to the vehicle speed signal and the coolant temperature;

S300, sending a 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 installation 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 airflow to the installation part 11.

It can be seen from the above that the cooling fan control strategy provided by the present application judges whether the current cooling state of the vehicle is reasonable according to the vehicle speed signal and the coolant temperature, and determines the temperature adjustment mode according to the vehicle speed signal and the coolant temperature. The angle adjusting part 3 drives the fan blade 2 to tilt and/or controls the air-cooling mechanism to deliver cooling airflow to the fan blade 2, thereby enhancing the cooling and heat exchange effect of the cooling fan on the high-temperature airflow, thereby optimizing the cooling structure of the cooling fan more reasonably , Improve the overall cooling efficiency of the vehicle.

It should be noted that the cooling fan control strategy proposed in this application is proposed for the scene where the current vehicle speed signal is not 0. When the current vehicle speed signal is 0km/h, the vehicle is not driving, and it will not Heat is generated without any active regulation of the cooling fans. In addition, the coolant generally flows through the engine of the vehicle to exchange heat with the engine, so as to cool down the engine. If the coolant temperature is too high, it proves that the engine working environment temperature of the current vehicle is too high. Therefore, by detecting the vehicle speed signal and the coolant temperature to Judging the current engine state of the vehicle can effectively control the cooling performance of the vehicle, thereby helping to ensure the normal driving of the vehicle.

In some embodiments, the vehicle speed signal and coolant temperature can be obtained by monitoring the sensor installed on the vehicle body in the prior art, for example, the vehicle speed signal is measured by the vehicle speed sensor, and the coolant temperature is obtained by the vehicle It is measured by a temperature sensor installed on the cooling system pipeline. The way to acquire vehicle speed information and coolant temperature can be real-time acquisition or periodic fixed-frequency acquisition.

In some embodiments, in step S100, including:

In response to the vehicle speed signal being less than or equal to the first threshold, the current coolant temperature of the vehicle is acquired;

In response to the vehicle speed signal being greater than the first threshold and the coolant temperature of the vehicle being greater than the second threshold, a warning signal is sent to the vehicle-machine interaction platform.

In the above embodiment, for example, the first threshold value is 200 km/h, the driving scene that is less than the first threshold value does not include the case where the vehicle speed is 0 km/h, and the second threshold value is 130°C. The acquired current vehicle speed signal includes the following two scenarios: the vehicle speed signal is greater than 0km/h and less than or equal to 200km/h, or the vehicle speed signal is greater than 200km/h. When the vehicle speed signal is greater than 0km/h and less than or equal to 200km/h, that is, the vehicle speed signal is less than or equal to the first threshold, at this time the current coolant temperature of the vehicle is obtained, and then the follow-up strategy regulation is performed according to the vehicle speed signal and coolant temperature.

When the vehicle speed signal is greater than 200km/h, that is, the vehicle speed signal is greater than the first threshold, since the vehicle is in an overheating and extreme speed driving scene, the temperature of the cooled coolant after active regulation is higher than 130°C, which is still higher than the acceptable temperature of the vehicle At this time, the vehicle-machine system can remind the driver that the cooling system is seriously overheated through the vehicle-machine interaction platform (such as instrumentation, voice system, etc.), remind the driver to reduce the speed of the vehicle or stop to dissipate heat; Repeat the cooling fan control strategy after the coolant temperature is lower than 130°C. This setting can avoid the problem of shortening the life of components caused by insufficient heat dissipation due to long-term driving of the vehicle.

Further, based on the description of the above embodiments, the following steps are also included:

Obtain the current coolant temperature of the vehicle;

In response to the coolant temperature of the vehicle being greater than the second threshold and the continuous running time of the vehicle greater than the third threshold, a speed limit signal is output to the power system to reduce the current torque of the power system.

Exemplarily, the second threshold is still 130°C, and the third threshold is 10min. The above steps are applicable to the scenario where the driver continues to drive at high speed after receiving the over-temperature warning signal. In this scenario, if the coolant temperature of the vehicle is higher than 130°C, and the vehicle has been driving at this coolant temperature for more than 10 minutes, it means that the vehicle cannot fully discharge the vehicle after actively adjusting the cooling fan to cool down or other means to cool down. High temperature heat, on this basis, the output speed limit signal reduces the current torque of the power system, thereby forcibly reducing the driving speed of the vehicle to play the role of auxiliary cooling and deceleration.

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

In the above embodiments, in order to prevent the driver from continuing to drive in an over-temperature scenario in an emergency, a deceleration release switch can be set on the steering panel or instrument panel, that is, when the driver does not need to forcibly reduce the speed to dissipate heat The torque deceleration effect on the power system can be canceled by turning on the deceleration release switch. In addition, the settings of the aforementioned first threshold, second threshold and third threshold are only for illustration, and the three can be flexibly set in combination with factors such as actual vehicle type, road condition, season, and driving time. For example, In summer, when the ambient temperature is 37°C and the vehicle has been driving for a period of time, the first threshold can be selected as 150km/h, so as to reduce the temperature of the vehicle as much as possible and maintain a good heat dissipation state.

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

According to the vehicle speed signal, the first preset interval is determined, the second preset interval is determined according to the coolant temperature, and the corresponding temperature adjustment is determined according to the first preset interval and the second preset interval Modes, wherein there are multiple first preset intervals and second preset intervals, and different first preset intervals and second preset intervals correspond to different temperature adjustment modes.

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

A: The vehicle speed signal shows that the current vehicle speed v is 0km/h<v≤100km/h;

B: The vehicle speed signal shows that the current vehicle speed v of the vehicle is 100km/h<v≤140km/h;

C: The vehicle speed signal shows that the current vehicle speed v of the vehicle is 140km/h<v≤200km/h;

D: The vehicle speed signal shows that the current vehicle speed v of the vehicle is at v>200km/h.

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

a: Vehicle coolant temperature T is at 0°C<T≤105°C;

b: Vehicle coolant temperature T is at 105°C<T≤110°C;

c: Vehicle coolant temperature T is at 110°C<T≤120°C;

d: Vehicle coolant temperature T is at 120°C<T≤130°C;

e: The vehicle coolant temperature T is at T>130°C.

Regarding the setting of the first preset interval and the second preset interval above, when the vehicle is in scene A and scene a, it corresponds to the first temperature adjustment mode; when the vehicle is in scene B and scene b, it corresponds to the second temperature adjustment mode, and the vehicle is in C scene and c scene correspond to the third temperature regulation mode, vehicles in D scene and d scene correspond to the fourth temperature regulation mode, and vehicles in D scene and e scene correspond to the fifth temperature regulation mode.

It should be noted that when the vehicle is determined to be in the fifth temperature adjustment mode, that is, the vehicle speed signal is in the D scene, and the vehicle coolant temperature is in the e scene, at this time, the vehicle is in the aforementioned over-temperature extreme speed driving scene, and thus the vehicle The engine system can perform the aforementioned operations such as sending out warning signals and/or limiting speed and torque.

Through the above settings, the car-machine system can select the corresponding temperature adjustment mode according to the vehicle speed information and the coolant temperature, so as to ensure the cooling effect of the cooling fan as much as possible, and avoid the waste of electric oil and gas resources of the vehicle caused by the excessive cooling power of the cooling fan , or the cooling power of the cooling fan is too small to fully exchange heat with the high-temperature air for heat dissipation. At the same time, setting the first preset interval and the second preset interval of different steps can make the distribution path corresponding to the cooling of the cooling fan more clear, which is conducive to the vehicle-machine system to respond quickly according to the current vehicle conditions, and improve the vehicle performance. The processing speed of the machine system.

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 four scenes A, B, C, and D, and the second preset interval corresponding to the coolant temperature is The five scenarios identified as a, b, c, d, and e, in other embodiments, can flexibly set the scenarios and ranges of the first preset interval and the second preset interval according to the actual driving scenario, for example, set Set two first preset intervals of 0km/h-140km/h and greater than 140km/h, or set two second preset intervals of 0°C-120°C and greater than 120°C, etc.

Here, in the aforementioned step S300, the air cooling mechanism includes an air pressure regulating valve, and the temperature adjustment signal includes the opening degree data of the air pressure regulating valve and ventilation and cooling power; the sending of the temperature adjustment signal corresponding to the temperature adjustment mode to The air-cooling mechanism, so that the air-cooling mechanism can input cooling airflow to the installation part, including:

Send a temperature adjustment signal corresponding to the temperature adjustment mode to the air-cooling mechanism, so that the air-cooling mechanism sends cooling airflow to the installation part 11 according to the ventilation and cooling power corresponding to the temperature adjustment mode, and makes all The opening of the air pressure regulating valve is adjusted according to the opening data of the air pressure regulating valve corresponding to the temperature adjustment mode.

In the above steps, the air-cooling mechanism can carry out the cooling air flow through the fan blade 2 of the cooling fan in the following manner: an airflow channel is set inside the installation part 11 of the cooling fan and the inside of the fan blade 2, and the air guide surface of the fan blade 2 21 is provided with a plurality of airflow outlets 22, and the output end of the air cooling mechanism communicates with the airflow channel of the cooling fan mounting part 11, and outputs from the opening on the guide surface 21 of the fan blade 2 through the air flow channel of the fan blade 2. Of course, this application is only an example for illustration, and it is also possible to directly output cooling airflow to the fan blade 2 through the air cooling mechanism.

The adjustment effect of the air cooling mechanism on the cooling air flow of the cooling fan is reflected in the temperature of the cooling air flow or the output pressure of the air flow. As an exemplary illustration, a wind pressure regulating valve is set on the cooling air flow delivery pipeline of the air cooling mechanism The air pressure regulating valve realizes the output control of 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 cooling effect of the cooling fan by adjusting the temperature of the cooling airflow.

In addition, in the aforementioned step S300, the temperature adjustment signal includes the angle adjustment data of the angle adjustment member 3, and the temperature adjustment signal corresponding to the temperature adjustment mode is sent to the angle adjustment member 3, so that the angle adjustment member 3 drives The fan blade 2 is inclined relative to the installation part, including:

Sending a 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 according to the angle adjustment data corresponding to the temperature adjustment mode.

In the above steps, the angle adjusting member 3 realizes the angle change of the fan blade 2 of the cooling fan by adjusting the inclination angle of the fan blade 2. It should be noted here that the inclination angle of the fan blade 2 means The blade 2 is tilted around the radial direction of the installation part 11 along the axial direction of its body, and the inclination angle of the blade 2 can be adjusted by the angle adjustment member 3, so that the guide surface 21 of the blade 2 can be adjusted relative to the ring. The resistance of the warm air is beneficial to adjust the inclination angle of the fan blade 2 under extreme speed conditions, so that the high-temperature ambient-temperature air can pass through the cooling fan as soon as possible, reducing the accumulation of high-temperature ambient-temperature air.

Here, the adjustment range of the inclination angle of the fan blade 2 is generally 0°-90°. Taking Fig. 4 and Fig. 5 as an example, the inclination angle of the fan blade 22 in Fig. 4 is 0°, when the fan blade 22 is in this position, the flow guide surface 2121 of the fan blade 22 is completely perpendicular to the flow direction of the ambient temperature air, At this time, the wind resistance of the cooling fan received by the ambient temperature air is the largest; the fan blade 22 is inclined at an angle of 90° in Fig. The flow directions are completely parallel, and at this time, the air resistance of the cooling fan received by the ambient temperature air is minimal. In this application, the above examples of inclination angles are used for description.

In the above-mentioned steps, the air cooling mechanism and the angle adjusting member 3 can simultaneously regulate the cooling fan. For example, the angle adjusting member 3 adjusts the inclination angle of the cooling fan while the air cooling mechanism delivers airflow to the cooling fan; One adjusts the cooling fan.

Corresponding to the above-mentioned various first preset intervals and second preset intervals, as an exemplary illustration, as shown in Figure 2, the temperature adjustment modes of the air cooling mechanism and the angle adjustment member 3 include the following scenarios :

(1) It is judged that the vehicle speed information v is 0km/h<v≤100km/h, and the coolant temperature T of the vehicle is detected to be 0℃<T≤105℃. Any active regulation of cooling fans;

(2) Judging that the speed information v of the vehicle is 100km/h<v≤140km/h, and detecting that the coolant temperature T of the vehicle is 105°C<T≤110°C, at this time, the vehicle initially generates heat, and the air cooling mechanism is turned on and Make the air pressure regulating valve control the output pressure of the airflow to 70kpa, and control the inclination angle of the fan blade 2 at 0°-30° through the angle adjusting member 3;

(3) Judging that the speed information v of the vehicle is 140km/h<v≤200km/h, and the coolant temperature T of the vehicle is detected to be 110°C<T≤120°C, at this time, the vehicle generates accumulated heat, and the ambient air temperature inside the vehicle The temperature rises extremely rapidly, turn on the air cooling mechanism and make the air pressure regulating valve control the output pressure of the airflow to 120kpa, and control the inclination angle of the fan blade 2 at 30°-70° through the angle adjustment part 3;

(4) Judging that the speed information v of the vehicle is v>200km/h, and the coolant temperature T of the vehicle is detected to be 120°C<T≤130°C, at this time, the vehicle is in high temperature and extreme speed driving conditions, and the air cooling mechanism is turned on and used The air pressure regulating valve controls the output pressure of the airflow to 160kpa, and controls the inclination angle of the fan blade 2 to be 90° through the angle adjusting member 3 .

(5) Judging that the speed information v of the vehicle is v>200km/h, and the coolant temperature T of the vehicle is detected to be T>130°C. At this time, the vehicle is in an overheating and extreme speed driving condition, and the internal cooling temperature of the vehicle exceeds the maximum value of the cooling system. Cooling performance, under the adjustment action of maintaining the scene (4), the car-machine system synchronously executes the aforementioned operations such as sending out warning signals and/or speed limit torque.

In the above-mentioned embodiments, the way of controlling the airflow output pressure of the air pressure regulating valve can be controlled by the opening of the air pressure regulating valve, for example, the control of the airflow output pressure can be realized by adjusting the opening percentage of the air pressure regulating valve; The larger the opening of the regulating valve, the larger the air output of the air cooling mechanism, and the higher the cooling efficiency of the cooling fan.

In addition, the airflow output duration of the air-cooling mechanism and the duration of the angle adjustment member 3 to maintain the current tilt angle can be flexibly adjusted according to various factors such as ambient temperature information and output power. According to the real-time detected vehicle speed information and coolant temperature information, Adjustments can be made to the air cooling mechanism or the angle adjusting member 3 accordingly.

In the above-mentioned embodiment, the adjustment function of the air cooling mechanism and the angle adjusting member 3 in different scenarios can be combined accordingly, for example, in the scenario (3), the inclination angle of the fan blade 2 can be adjusted by the angle adjusting member 3 to 0° -30°, and correspondingly, the air pressure regulating valve of the air cooling mechanism controls the output cooling air flow pressure to increase, thereby maintaining a good cooling effect of the cooling fan.

In some embodiments, the temperature adjustment signal can synchronously adjust the cooling air temperature of the air cooling mechanism and the air pressure regulating valve, thereby increasing the cooling rate of the air cooling mechanism, for example, increasing the cooling power of the air cooling mechanism to reduce the cooling air flow Temperature, and adjusting the air pressure regulating valve to increase the output airflow pressure, compared with only adjusting the air pressure regulating valve, the cooling fan can cool the ambient air faster.

It should be noted that, in the above-mentioned embodiments, only a cooling fan control strategy is exemplified. In some embodiments, when the vehicle is in the scene (2), it is also possible to only turn on the air cooling Do not control the action of the angle adjusting member 3, or only control the action of the angle adjusting member 3 without opening the air cooling mechanism; when the vehicle is in the scene (3), the air pressure adjusting member of the air cooling mechanism can control the output airflow pressure to reach the maximum ( 160kpa), the angle adjusting part 3 only adjusts the inclination angle of the fan blade 2 to 0°-30°, etc. For different first preset intervals and second preset intervals, the air cooling mechanism and the angle adjusting member 3 can be flexibly set The temperature adjustment mode is not absolutely limited in this embodiment.

In the above embodiments, the first preset interval and the second preset interval are described as reference examples. Generally speaking, the vehicle speed signal is directly proportional to the vehicle coolant temperature; in some embodiments, there may also be In the scene where the vehicle runs at medium and low speeds for a long time in a high-temperature environment in summer, the vehicle speed signal is in the range of 0km/h<v≤100km/h, and the coolant temperature T is in the range of 105°C<T≤110°C. The cooling mechanism and the angle adjusting part 3 regulate the cooling fan so that the cooling fan can fully cool down and cool the ambient temperature air.

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

It should be noted that some embodiments of the present application are described above. Other implementations are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in an order different from those in the above-described embodiments 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. Multitasking and parallel processing are also possible or may be advantageous in certain embodiments.

Based on the same inventive concept, the present application also provides a cooling fan, which is used to be assembled in the cooling device of the vehicle, so as to dissipate the heat generated by the vehicle through the convection effect of the cooling fan.

As shown in Figures 3 to 5, the cooling fan provided by the present application includes a fan main body 1 and a plurality of fan blades 2, and a mounting part 11 is provided inside the fan main body 1, and the mounting part 11 is used to synchronize with the output end of the drive motor Rotationally connected; a plurality of fan blades 2 are arranged on the installation part 11 and arranged evenly along the circumference of the installation part 11; wherein, the installation part 11 is provided with an airflow inlet 12 for communicating with the cooling module, so The guide surface 21 of the fan blade 2 is provided with an air outlet 22, the inside of the installation part 11 is provided with a first air passage, the inside of the fan blade 2 is provided with a second air passage, and the air inlet 12 passes through The first airflow passage and the second airflow passage communicate with the airflow outlet 22 .

It can be seen from the above that the cooling fan provided by the present application is provided with an airflow inlet 12 on the mounting part 11 and an airflow outlet 22 on the air guide surface 21 of the fan blade 2, so that the airflow of the cooling module can flow from the The airflow inlet 12 is input, and is output from the airflow outlet 22 through the first airflow passage and the second airflow passage, so that the cooling airflow of the cooling module can fully contact with the ambient temperature air for heat exchange, thus, the cooling fan and The heat exchange airflow synchronously cools the surrounding air, effectively improving the heat dissipation efficiency and avoiding the increase of the vehicle water temperature; in addition, through the above-mentioned cooling fan, the vehicle-machine system can control the temperature of the cooling module according to the actual vehicle driving status and the current ambient temperature. The airflow output volume and airflow output rate can make the temperature regulation of the air side of the cooling module more intelligent, which is conducive to improving the intelligent control level and ability of the water temperature of the cooling system.

In the above-mentioned embodiments, the fan body 1 can be an existing mature one-piece injection molded fan casing structure with a casing, the mounting part 11 is located on the central axis of the fan body 1, and the output shaft of the driving motor is aligned with the center of the mounting part 11. The axes are coaxial. Here, the connection mode between the mounting part 11 and the output shaft of the driving motor can be a key fit connection, or a sleeve fixed fit, etc., as long as the output shaft of the driving motor can drive the mounting part 11 to rotate synchronously.

In some embodiments, as shown in FIG. 3 , the fan blade 2 includes two oppositely arranged flow guide surfaces 21 , and a plurality of airflow outlets 22 are evenly arranged on each flow guide surface 21 .

In the above embodiments, the guide surface 21 refers to the end surface that is in direct contact with the ambient temperature air and guides the airflow of the ambient temperature air to pass through the cooling fan. Since the guide surface 21 is directly in contact with the ambient temperature air, the air outlet 22 is directly arranged on the The air guide surface 21 can make the air flow of the cooling module more fully contact with the ambient temperature air for heat exchange.

In addition, the air outlet 22 can also be provided only on one side of the air guide surface 21 of the fan blade 2, or the air outlet 22 can be arranged on other positions of the fan blade 2 except the air guide surface 21, as long as it can achieve contact with the ambient temperature air. The effect of heat exchange is enough; the air outlet 22 on the fan blade 2 can be a plurality of evenly arranged as described in FIG. 3 , or only one air outlet 22 can be set on the fan blade 2. When one airflow outlet 22 is provided, the shape of the airflow outlet 22 is a strip extending along the length direction of the fan blade 2 .

In some embodiments, the air outlets 22 may not be provided correspondingly on each fan blade 2, but the air outlets 22 may be provided on the fan blades 2 at equal intervals according to the actual number of fan blades 2, for example, as shown in FIG. 3 Four fan blades 2 are provided. In FIG. 3 , air outlets 22 can be provided on each fan blade 2 , or they can be set as a group facing each other, and only one group of air outlets 22 can be provided. This setting can better balance the cooling effect and production cost, so that car companies can choose a suitable implementation method according to the actual vehicle status.

In the above embodiments, the cooling module refers to the air-cooling mechanism related to the heat pump air-conditioning system and refrigeration equipment of the vehicle. The low-temperature cooling airflow generated by the air-cooling mechanism is input into the installation part 11 through the airflow inlet 12. Here, the airflow inlet 12 It communicates with the output end of the cooling module through a rotatable joint, so as to avoid affecting the normal rotation of the installation part 11 .

It should be noted that, for the convenience of description in this application, the shape of the blade 2 of the fan is the flat plate type blade 2 in FIG. The arc surface with a certain bending angle, the specific shape of the fan blade 2 is not limited in this embodiment.

In addition, in order to further improve the delivery airflow effect of the cooling module, a booster pump can be added between the cooling module and the cooling fan, and the booster pump can be used to boost the airflow rate of the cooling module.

In some embodiments, as shown in FIG. 3 , the fan blade 2 and the installation part 11 are rotatably connected via an angle adjustment member 3, and the angle adjustment member 3 is used to drive the fan blade 2 to tilt relative to the installation part 11, so as to Adjust the inclination angle of fan blade 2. In this embodiment, the inclination angle is adjusted based on the guide surface 21 of the fan blade 2. Specifically, since the guide surface 21 of the fan blade 2 is in contact with the ambient temperature air and cooperates with the guide flow of the ambient temperature air, when the vehicle is running During the process, adjusting the inclination angle of the fan blade 2 can maintain the diversion effect while reducing the air resistance to the ambient temperature air, allowing the fan blade 2 to pass through more ambient temperature air in the same time, which is conducive to improving the cooling performance of the vehicle .

Based on the above description, in some embodiments, the adjustment end of the angle adjustment member 3 is connected to the fan blade 2, the fixed end of the angle adjustment member 3 is connected to the installation part 11, and the angle adjustment member 3 The connecting harness is connected with external equipment via a rotatable joint. Here, the angle adjustment part 3 can be selected from a micro-drive motor, fixedly connected to the installation part 11 by clamping or welding, and rotates synchronously with the installation part 11, and when electrically connected to external equipment through a rotatable joint, the rotatable joint It is possible to prevent the connecting wire harness of the micro-drive motor from affecting the rotation of the installation part 11 . The rotatable joint may adopt an existing mature 360° rotating conductive joint, which will not be described in detail in this embodiment.

In some embodiments, an angle adjustment member 3 is provided between each fan blade 2 and the installation part 11, and each angle adjustment member 3 can adjust the inclination angle of a fan blade 2 correspondingly. Specifically, the fan blade 2 can be The adjustable tilt angle is 0°-90°. Taking Fig. 4 and Fig. 5 as an example, the inclination angle of the fan blade 2 in Fig. 4 is 0°, when the fan blade 2 is in this position, the guide surface 21 of the fan blade 2 is completely perpendicular to the flow direction of the ambient temperature air, At this time, the wind resistance of the cooling fan received by the ambient temperature air is the largest; the inclination angle of the fan blade 2 is 90° in Fig. The flow directions are completely parallel, and at this time, the air resistance of the cooling fan received by the ambient temperature air is minimal.

In the above embodiment, the angle adjusting member 3 may not be arranged between each fan blade 2 and the installation portion 11 , but the angle adjusting members 3 may be arranged on the fan blades 2 at equal intervals according to the actual number of fan blades 2 installed. For example, four fan blades 2 are arranged in Fig. 3, and in Fig. 3, two opposite fan blades 2 are used as a group, and the angle adjusting member 3 is only set on one group of fan blades 2, while the other group of fan blades 2 is not provided with an angle adjustment part 3. This setting can better balance the cooling effect and production cost, so that car companies can choose a suitable implementation method according to the actual vehicle status.

It should be noted that the above-mentioned two structures of using airflow cooling and adjusting the angle of the fan blades 2 in this application can be combined, and the vehicle-machine system can flexibly adjust the inclination angle of the fan blade 2 according to the form and working conditions of the vehicle, or adjust the angle of the fan blade 2 Input cooling air flow to improve cooling effect.

Exemplarily, when the vehicle is running at a medium or low speed, the air flow rate of the ambient temperature air itself is relatively slow at this time, the inclination angle of the fan blade 2 can be adjusted to between 0°-45°, so that the guide surface of the fan blade 2 21 Contact with the ambient temperature air as much as possible, and use the rotation of the cooling fan itself to drive the heat exchange of the ambient temperature air.

When the vehicle is running at high speed or even extreme speed, at this time, because the air flow rate of the ambient temperature air is greater than the diversion rate of the cooling fan, the inclination angle of the fan blade 2 is too small, and the wind resistance of the fan blade 2 is large, which will cause the ambient temperature air to flow in the cooling fan. A large amount of redundancy on the air outlet side cannot dissipate heat quickly. In this scenario, the inclination angle of the fan blade 2 can be adjusted to 45°-90°, and the airflow of the cooling module can be turned on to make the air guide surface 21 of the fan blade 2 output cooling airflow , While reducing the wind resistance, the cooling air flow and the ambient temperature air are used for heat exchange.

Based on the above description, when the angle adjustment member 3 is provided, since the angle adjustment member 3 occupies the connecting space between the installation part 11 and the fan blade 2, an airflow guide 4 can be provided between the installation part 11 and the fan blade 2 to The second airflow passage of the fan blade 2 communicates with the first airflow passage of the installation part 11 . Here, the airflow guide 4 can be made of engineering plastic material or stainless steel braided hose, one end of the airflow guide 4 is connected to the outlet end of the installation part 11, and the other end is connected to the inlet end of the fan blade 2, and the airflow guide is set 4 It can prevent the angle adjustment member 3 from affecting the normal connection effect between the installation part 11 and the fan blade 2 .

It should be noted that since the angle adjusting member 3 will drive the fan blade 2 to rotate, the airflow guiding member 4 should preferably be made of elastically deformable material. When the angle adjusting member 3 drives the fan blade 2 to rotate, the airflow guiding member 4 It can well adapt to the rotation angle range of the fan blade 2, so as to avoid the dragging of the airflow guide 4 and interfere with the action of the fan blade.

Based on the same inventive concept, corresponding to any of the methods in the above embodiments, the present application also provides a cooling fan control device, as shown in FIG. 6 , including:

The detection module 5 is configured to obtain the current vehicle speed signal and coolant temperature of the vehicle;

The processing module 6 is configured to determine the temperature adjustment mode according to the vehicle speed signal and the coolant temperature;

The signal sending module 7 is configured to send 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 tilt relative to the installation part; and/or, send a temperature corresponding to the temperature adjustment mode Adjust the signal to the air-cooling mechanism so that the air-cooling mechanism can input cooling airflow to the installation part.

For the convenience of description, when describing the above devices, functions are divided into various modules and described separately. Of course, when implementing the present application, the functions of each module can be realized in one or more pieces of software and/or hardware.

The device in the above embodiment is used to implement the corresponding cooling fan control strategy in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, so it will not be repeated here.

Based on the same inventive concept, and corresponding to the method in any of the above embodiments, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, the processor The cooling fan control strategy described in any one of the above embodiments is implemented when the program is executed.

FIG. 7 shows a schematic diagram of a more specific hardware structure of an electronic device provided by this embodiment. The device may include: a processor 1010 , a memory 1020 , an input/output interface 1030 , a communication interface 1040 and a bus 1050 . The processor 1010 , the memory 1020 , the input/output interface 1030 and the communication interface 1040 are connected to each other within the device through the bus 1050 .

The processor 1010 can adopt a general-purpose CPU (Central Process ing Unit, central processing unit), a microprocessor, an application-specific integrated circuit (App l i cat i on Spec i f i c I integrated Circuit, AS IC ), or one or more integrated circuits, etc., for executing related programs, so as to realize the technical solutions provided by the embodiments of this specification.

The memory 1020 can be implemented in the form of ROM (Read Only Memory, read-only memory), RAM (Random Access Memory, random access memory), static storage device, dynamic storage device, and the like. The memory 1020 can store operating systems and other application programs. When implementing the technical solutions provided by the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and invoked by the processor 1010 for execution.

The input/output interface 1030 is used to connect the input/output module to realize information input and output. The input/output/module can be configured in the device as a component (not shown in FIG. 7 ), or can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, mouse, touch screen, microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, and the like.

The communication interface 1040 is used to connect a communication module (not shown in FIG. 7 ), so as to realize communication interaction between the device and other devices. Wherein the communication module can realize communication through wired means (such as USB, network cable, etc.), and can also realize communication through wireless means (such as mobile network, WIFI, Bluetooth, etc.).

Bus 1050 includes a path that carries information between the various components of the device (eg, processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).

It should be noted that although the above device only shows the processor 1010, the memory 1020, the input/output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device may also include other components. In addition, those skilled in the art can understand that the above-mentioned device may only include components necessary to implement the solutions of the embodiments of this specification, and does not necessarily include all the components shown in the figure.

The electronic device in the foregoing embodiments is used to implement the corresponding cooling fan control strategy in any of the preceding embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

Based on the same inventive concept, the present application also provides a non-transitory computer-readable storage medium corresponding to the method in any of the above-mentioned embodiments, the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions use To make the computer execute the cooling fan control strategy described in any one of the above embodiments.

The computer-readable medium in this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

The computer instructions stored in the storage medium of the above embodiments are used to make the computer execute the cooling fan control strategy described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

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

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope of the application (including claims) is limited to these examples; under the thinking of the application, the above embodiments or Combinations of technical features in different embodiments are also possible, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the application as described above, which are not provided in detail for the sake of brevity.

In addition, to simplify illustration and discussion, and so as not to obscure the embodiments of the present application, well-known power supplies associated with integrated circuit (IC) chips and other components may or may not be shown in the provided figures. /ground connection. Furthermore, 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 details regarding the implementation of these block diagram devices are highly dependent on the implementation of the embodiments of the present application to be implemented. platform (ie, the details should be well within the purview of those skilled in the art). Where specific details (eg, circuits) have been set forth to describe exemplary embodiments of the present application, it will be apparent to those skilled in the art that other embodiments may be implemented without or with variations from these specific details. Implement the embodiment of the present application below. Accordingly, these descriptions should be regarded as illustrative rather than restrictive.

Although the application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of those embodiments will be apparent to those of ordinary skill in the art from the foregoing description. For example, other memory architectures such as dynamic RAM (DRAM) may use the discussed embodiments.

The embodiments of the present application are intended to embrace all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. within the spirit and principles of the embodiments of the present application shall be included within the protection scope of the present application.

Claims (10)

1. A cooling fan control strategy, characterized in that the cooling fan includes a mounting portion and fan blades uniformly distributed along the circumferential direction of the mounting portion, the cooling fan is provided with an angle regulator for controlling the inclination angle of the fan blades, the vehicle’s The air-cooling mechanism can sequentially pass through the airflow channel of the mounting part and the airflow channel of the fan blade and then output the cooling airflow from the guide surface of the fan blade; wherein, the strategy includes: Obtain the current vehicle speed signal and coolant temperature of the vehicle; Determine the temperature adjustment mode according to the vehicle speed signal and the coolant temperature; Sending 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 tilt relative to the installation part; and/or, A temperature adjustment signal corresponding to the temperature adjustment mode is sent to the air-cooling mechanism, so that the air-cooling mechanism inputs cooling airflow to the installation part. 2. The cooling fan control strategy according to claim 1, wherein said acquiring the current vehicle speed signal and coolant temperature of the vehicle comprises: In response to the vehicle speed signal being greater than the first threshold and the coolant temperature of the vehicle being greater than the second threshold, a warning signal is sent to the vehicle-machine interaction platform. 3. The cooling fan control strategy according to claim 2, wherein in response to the vehicle speed signal being greater than the first threshold and the coolant temperature of the vehicle being greater than the second threshold, a warning signal is sent to the vehicle-machine interaction platform, After that include: Obtain the current coolant temperature of the vehicle; In response to the coolant temperature of the vehicle being greater than the second threshold and the continuous running time of the vehicle greater than the third threshold, a speed limit signal is output to the power system to reduce the current torque of the power system. 4. The cooling fan control strategy according to claim 1, wherein said determining the temperature adjustment mode according to the vehicle speed signal and the coolant temperature comprises: According to the vehicle speed signal, the first preset interval is determined, the second preset interval is determined according to the coolant temperature, and the corresponding temperature adjustment is determined according to the first preset interval and the second preset interval mode, wherein there are multiple first preset intervals and second preset intervals. 5. The cooling fan control strategy according to claim 1, wherein the air-cooling mechanism includes a wind pressure regulating valve, and the temperature adjustment signal includes the opening degree data of the wind pressure regulating valve and ventilation and cooling power; the sending The temperature adjustment signal corresponding to the temperature adjustment mode is sent to the air-cooling mechanism, so that the air-cooling mechanism inputs cooling airflow to the installation part, including: Sending a temperature adjustment signal corresponding to the temperature adjustment mode to the air-cooling mechanism, so that the air-cooling mechanism sends cooling airflow to the installation part according to the ventilation and cooling power corresponding to the temperature adjustment mode, and makes the air-cooling mechanism The opening of the air pressure regulating valve is adjusted according to the opening data of the air pressure regulating valve corresponding to the temperature adjustment mode. 6. The cooling fan control strategy according to claim 1, wherein the temperature adjustment signal includes angle adjustment data of the angle adjustment member, and sending the temperature adjustment signal corresponding to the temperature adjustment mode to the angle adjustment member, To make the angle adjustment member drive the fan blade to tilt relative to the installation part, including: Sending 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 tilt according to the angle adjustment data corresponding to the temperature adjustment mode. 7. A cooling fan control device, characterized in that it comprises: A detection module configured to obtain the current vehicle speed signal and coolant temperature of the vehicle; a processing module configured to determine a temperature adjustment mode according to the vehicle speed signal and the coolant temperature; The signal sending module is configured to send 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 tilt relative to the installation part; and/or, send a temperature adjustment signal corresponding to the temperature adjustment mode The signal is sent to the air-cooling mechanism so that the air-cooling mechanism can input cooling airflow to the installation part. 8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor implements any one of claims 1 to 6 when executing the program. The cooling fan control strategy described in the item. 9. A computer-readable storage medium, the computer-readable storage medium stores computer instructions, wherein the computer instructions are used to make a computer execute the cooling fan control strategy according to any one of claims 1 to 6. 10. A vehicle, characterized by comprising the cooling fan control device as claimed in claim 7, or the electronic device as claimed in claim 8, or the medium as claimed in claim 9.

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