WO2022111494A1

WO2022111494A1 - Method, device and system for controlling electric control silicone oil mechanical fan, and storage medium

Info

Publication number: WO2022111494A1
Application number: PCT/CN2021/132618
Authority: WO
Inventors: 申连勇; 魏利; 崔健; 丁珺; 于忠磊; 陈辰; 李郑楠; 栗江; 欣白宇; 高天宇
Original assignee: 中国第一汽车股份有限公司
Priority date: 2020-11-30
Filing date: 2021-11-24
Publication date: 2022-06-02
Also published as: CN112523857A

Abstract

A method, device and system for controlling an electric control silicone oil mechanical fan (1), and a storage medium. The method and device are applied to a vehicle, and the electric control silicone oil mechanical fan (1) is integrated in the vehicle. The method for controlling the electric control silicone oil mechanical fan (1) comprises: acquiring whole vehicle parameter information of the vehicle by means of an engine control unit; determining a target rotational speed of the electric control silicone oil mechanical fan (1) according to the whole vehicle parameter information; and controlling the electric control silicone oil mechanical fan (1) to rotate on the basis of the target rotational speed.

Description

Control method, device, storage medium and system for electronically controlled silicone oil mechanical fan

This application claims the priority of the Chinese Patent Application No. 202011382666.X filed with the China Patent Office on November 30, 2020, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of vehicle control, for example, to a control method, device, storage medium and system for an electronically controlled silicone oil mechanical fan.

Background technique

During the operation of the engine, with the change of the external environment and the working conditions of the whole vehicle, the thermal state of the engine also changes. In order to ensure that the engine can work normally, it is necessary to adjust the thermal state of the engine in real time. For example, when the engine works in a low temperature environment for a long time (such as winter in the north), or in high-speed driving conditions with strong oncoming wind, the temperature of the engine is relatively low, and the temperature of the engine needs to be increased at this time. On the contrary, when the engine works in a high temperature environment for a long time, especially in the high temperature idling condition, the temperature of the engine will be very high, and the engine needs to be cooled at this time.

Most of the cooling fans used in passenger cars are electronic fans. Electronic fans have the characteristics of energy saving and noise reduction, and are widely used in small displacement passenger cars. However, for passenger cars equipped with V-type 6-cylinder direct injection supercharged (V6TD) large-displacement engines, due to the heavy vehicle weight, heavy engine load, and thick cooling modules, the requirements for heat dissipation efficiency are more stringent. However, due to the limitation of its own structure, the electronic fan cannot meet the heat dissipation requirements of the engine of this type of vehicle.

SUMMARY OF THE INVENTION

The application provides a control method, device, storage medium and system for an electronically controlled silicone oil mechanical fan, which can adjust the rotational speed of the electronically controlled silicone oil mechanical fan according to the parameter information of the whole vehicle, which can not only meet the requirements of the vehicle engine under most working conditions The cooling needs of the fan, but also to achieve the purpose of energy saving and noise reduction.

The present application provides a control method for an electronically controlled silicone oil mechanical fan, which is applied to a vehicle. The electronically controlled silicone oil mechanical fan is integrated in the vehicle, and the method includes:

Collect vehicle parameter information of the vehicle through the engine control unit;

Determine the target speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information;

The electronically controlled silicone oil mechanical fan is controlled to rotate based on the target rotational speed.

In one embodiment, controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed includes:

Determine the rotational speed control signal of the electronically controlled silicone oil mechanical fan according to the target rotational speed;

Controlling the opening or closing of the silicon oil chamber valve plate based on the rotational speed control signal; wherein, when the silicon oil chamber valve plate is in an open state, the silicone oil is controlled to flow into the engaging part of the clutch;

Determine the target shear torque generated by the clutch based on the amount of silicone oil at the meshing portion of the clutch; wherein, the longer the opening time of the silicone oil cavity valve plate, the greater the amount of silicone oil at the meshing portion of the clutch;

The electronically controlled silicone oil mechanical fan is controlled to rotate based on the target shear torque.

In one embodiment, the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information;

Determine the target speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information, including:

Determine the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information;

The initial rotational speed is corrected according to the vehicle correction parameter information, and the corrected initial rotational speed is used as the target rotational speed of the electronically controlled silicon oil mechanical fan.

In one embodiment, determining the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information includes:

Obtain the first correspondence table between vehicle owner parameter information and rotational speed;

In the first correspondence table, look up the rotational speed corresponding to the vehicle owner parameter information as the initial rotational speed of the electronically controlled silicone oil mechanical fan.

In one embodiment, correcting the initial rotational speed according to the vehicle correction parameter information includes:

obtaining a second correspondence table between vehicle correction parameter information and correction coefficients;

looking up the correction coefficient corresponding to the vehicle correction parameter information in the second correspondence table;

The initial rotational speed is corrected based on the correction coefficient.

In an embodiment, before controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed, the method further includes:

Determine the magnitude relationship between the target rotational speed and the limit rotational speed of the electronically controlled silicone oil mechanical fan;

Controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed includes:

When the target rotational speed is less than the limit rotational speed, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the target rotational speed.

In one embodiment, the method further includes:

Monitor in real time whether the output signal of the Hall speed sensor is abnormal; wherein, the Hall speed sensor is integrated on the electronically controlled silicone oil mechanical fan;

When it is determined that the output signal of the Hall rotational speed sensor is abnormal, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limit rotational speed.

The present application also provides a control device for an electronically controlled silicone oil mechanical fan, which is applied to a vehicle. The electronically controlled silicone oil mechanical fan is integrated in the vehicle, and the device includes:

a parameter information collection module, configured to collect vehicle parameter information of the vehicle through the engine control unit;

a target rotational speed determination module, configured to determine the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information;

A rotational speed control module configured to control the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed.

In one embodiment, the rotational speed control module is set to:

The target rotational speed determination module includes:

an initial rotational speed determining unit, configured to determine the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information;

The target rotational speed determining unit is configured to correct the initial rotational speed according to the vehicle correction parameter information, and use the corrected initial rotational speed as the target rotational speed of the electronically controlled silicone oil mechanical fan.

In one embodiment, the initial rotational speed determination unit is set to:

In an embodiment, the target rotational speed determination unit is set to:

The initial rotational speed is corrected based on the correction coefficient.

In one embodiment, the device further includes:

a magnitude relationship judging module, configured to judge the magnitude relationship between the target rotational speed and the limit rotational speed of the electronically controlled silicon oil mechanical fan before controlling the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed;

The rotational speed control module is set to:

In one embodiment, the apparatus further includes:

The present application also provides a computer storage medium on which a computer program is stored, and when the program is executed by a processor, the above-mentioned control method for an electronically controlled silicone oil mechanical fan is implemented.

The present application also provides a control system for an electronically controlled silicone oil mechanical fan, including a memory, a processor, and a computer program stored in the memory and running on the processor. The processor implements the above-mentioned computer program when the processor executes the computer program. Control method of electronically controlled silicone oil mechanical fan.

Description of drawings

1 is a schematic flowchart of a control method for an electronically controlled silicone oil mechanical fan provided by an embodiment of the application;

2 is a schematic structural diagram of an electronically controlled silicone oil mechanical fan provided by an embodiment of the application;

3 is a schematic diagram of the control logic of an electronically controlled silicone oil mechanical fan provided by an embodiment of the present application;

4 is a schematic flowchart of another method for controlling an electronically controlled silicone oil mechanical fan according to an embodiment of the present application;

5 is a schematic flowchart of another method for controlling an electronically controlled silicone oil mechanical fan according to an embodiment of the present application;

6 is a structural block diagram of a control device for an electronically controlled silicone oil mechanical fan provided by an embodiment of the application;

FIG. 7 is a structural block diagram of a control system for an electronically controlled silicone oil mechanical fan according to an embodiment of the present application.

Detailed ways

The present application will be described below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely used to explain the present application. For the convenience of description, only the parts related to the present application are shown in the drawings.

1 is a schematic flowchart of a control method for an electronically controlled silicone oil mechanical fan provided by an embodiment of the application, the method can be executed by a control device for an electronically controlled silicone oil mechanical fan, wherein the device can be implemented by software and/or hardware, and generally can be It is integrated in the control system of the electronically controlled silicone oil mechanical fan. Usually, the control system of the electronically controlled silicone oil mechanical fan can be configured in the vehicle. As shown in Figure 1, the method includes:

Step 110: Collect vehicle parameter information of the vehicle through the engine control unit.

In the embodiment of the present application, an electronically controlled silicone oil mechanical fan is integrated in the vehicle, and FIG. 2 is a schematic structural diagram of an electronically controlled silicone oil mechanical fan provided in an embodiment of the present application. As shown in Figure 2, a Hall speed sensor 2 can be integrated on the electronically controlled silicone oil mechanical fan 1, and the Hall speed sensor 2 can detect the rotational speed of the electronically controlled silicone oil mechanical fan 1 in real time. The engine pulley 3 is connected.

In the embodiment of the present application, the control device for the electronically controlled silicone oil mechanical fan can be set in the engine control unit (Engine Control Unit, ECU) of the vehicle. Exemplarily, in response to the control request of the electronically controlled silicone oil mechanical fan, the vehicle's entire vehicle parameter information is collected by the engine control unit, that is, the engine control unit is controlled to collect the vehicle's entire vehicle parameter information. The vehicle parameter information may include at least one of ambient temperature, atmospheric pressure, engine water temperature, engine speed, vehicle speed, intake air temperature, transmission oil temperature, and air conditioning pressure signal.

Step 120: Determine the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information.

In the embodiment of the present application, the parameter information of the entire vehicle is analyzed, and the target rotational speed of the electronically controlled silicone oil mechanical fan is determined according to the analysis result of the parameter information of the entire vehicle. Optionally, the vehicle parameter information is input into a pre-trained rotational speed determination model, and the target rotational speed of the electronically controlled silicone oil mechanical fan is determined according to the output result of the rotational speed determination model. Among them, the vehicle parameter information of the vehicle under various working conditions and the optimal rotational speed of the electronically controlled silicone oil mechanical fan can be collected, and the vehicle parameters and corresponding electronically controlled silicone oil under various working conditions can be collected The optimal rotational speed of the mechanical fan is a training sample, and a preset machine learning model is trained based on the training sample to generate a rotational speed determination model.

Optionally, obtain a correspondence table between vehicle parameter information and rotational speed, look up the rotational speed corresponding to the vehicle parameter information of the vehicle collected by the engine control unit in the correspondence table, and use the found rotational speed as the electronically controlled silicone oil mechanical fan target speed. Optionally, when the vehicle parameter information includes at least two, the corresponding target speed may be determined based on a plurality of vehicle parameter information and rotational speed correspondence tables, and will be based on multiple vehicle parameter information and vehicle parameter information. Among the multiple target rotational speeds determined by the rotational speed correspondence table, the largest target rotational speed is determined as the target rotational speed of the electronically controlled silicon oil mechanical fan. Exemplarily, the vehicle parameter information includes the engine water temperature, the transmission oil temperature, and the intake air temperature, then the first rotational speed can be determined based on the collected engine water temperature and the corresponding relationship table between the engine water temperature and the rotational speed; The second rotational speed is determined based on the corresponding relationship table between the oil temperature and the rotational speed; the third rotational speed is determined based on the collected intake air temperature and the corresponding relationship table between the intake air temperature and the rotational speed. Then, the first rotational speed, the second rotational speed and the third rotational speed are compared, and the maximum rotational speed among the three is taken as the target rotational speed of the electronically controlled silicone oil mechanical fan.

The embodiments of the present application do not limit the manner of determining the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information.

Step 130: Control the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed.

In the embodiment of the present application, after determining the target rotational speed of the electronically controlled silicone oil mechanical fan, if the electronically controlled silicone oil mechanical fan is in a closed state, the electronically controlled silicone oil mechanical fan is controlled to start, and the electronically controlled silicone oil mechanical fan is rotated at the target rotational speed; If the electronically controlled silicone oil mechanical fan is already in a rotating state, adjust the actual speed of the electronically controlled silicone oil mechanical fan to the target speed, so that the electronically controlled silicone oil mechanical fan rotates at the target speed.

Optionally, the actual speed of the electronically controlled silicone oil mechanical fan can be monitored in real time through the Hall speed sensor integrated in the electronically controlled silicone oil mechanical fan, and the dynamic adjustment function of the proportional-integral-derivative (PID) adjustment function inside the ECU can be used to dynamically Correct the difference between the actual speed and the target speed of the electronically controlled silicone oil mechanical fan, so that the actual speed of the electronically controlled silicone oil mechanical fan can reach the target speed as much as possible, so as to match the current operating state of the vehicle.

Optionally, controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed includes: determining a rotational speed control signal of the electronically controlled silicone oil mechanical fan according to the target rotational speed; controlling a silicone oil cavity valve plate based on the rotational speed control signal The opening or closing of the clutch; wherein, when the silicon oil chamber valve plate is in the open state, the flow of the silicone oil into the meshing part of the clutch is controlled; based on the amount of silicone oil in the meshing part of the clutch, the target shear torque generated by the clutch is determined; wherein , the longer the opening time of the silicon oil cavity valve plate, the greater the amount of silicon oil in the meshing part of the clutch; the rotation of the electronically controlled silicon oil mechanical fan is controlled based on the target shear torque. Exemplarily, the rotation speed control signal corresponding to the target rotation speed may be searched from a preset correspondence table of rotation speed and rotation speed control signal, wherein the rotation speed control signal may be a pulse width modulation (Pulse width modulation, PWM) signal. Then, the opening or closing of the silicon oil chamber valve plate is controlled based on the rotational speed control signal, for example, the opening and closing control of the silicon oil chamber valve plate is realized through the high and low levels of the PWM signal. Exemplarily, the high level of the PWM signal controls the opening of the valve plate of the silicone oil chamber, and the low level of the PWM signal controls the valve plate of the silicone oil chamber to close, wherein, when the valve plate of the silicone oil chamber is in the open state, the silicone oil flows from the storage chamber into the engagement of the clutch. position, the longer the opening time of the silicone oil cavity valve plate, the greater the amount of silicone oil flowing into the engaging part of the clutch. In the same time period, the larger the PWM duty cycle, the longer the total opening time of the silicone oil cavity valve plate, the larger the amount of silicone oil flowing into the meshing part of the clutch, the larger the amount of silicone oil, the larger the shear torque generated by the clutch. The amount of silicone oil flowing into the engaging part of the clutch controlled by the PWM signal determines the target shear torque generated by the clutch, so as to control the rotation of the electronically controlled silicone oil mechanical fan through the target shear torque. The higher the rotational speed of the thyristor oil mechanical fan.

Exemplarily, FIG. 3 is a schematic control logic diagram of an electronically controlled silicone oil mechanical fan according to an embodiment of the present application. As shown in Figure 3, the ECU obtains the vehicle parameter information of the vehicle, and after performing certain internal logic operations on the vehicle parameter information, determines the target speed of the electronically controlled silicone oil mechanical fan, and determines the corresponding PWM signal based on the target speed. The PWM signal controls the shear torque generated by the electronically controlled silicone oil clutch to control the rotation of the electronically controlled silicone oil mechanical fan. During the process of controlling the rotation of the electronically controlled silicone oil mechanical fan, the actual speed of the electronically controlled silicone oil mechanical fan is monitored in real time through the Hall speed sensor, and the The actual speed is fed back to the PID regulator in the ECU, and the target speed is adjusted by the PID regulator to realize the closed-loop adjustment of the speed of the electronically controlled silicone oil mechanical fan, so that the actual speed of the electronically controlled silicone oil mechanical fan can reach the target speed as much as possible.

The method for controlling an electronically controlled silicone oil mechanical fan provided by the present application is applied to a vehicle, wherein the electronically controlled silicone oil mechanical fan is integrated, including: collecting vehicle parameter information of the vehicle through an engine control unit; The parameter information determines the target rotational speed of the electronically controlled silicon oil mechanical fan; the electronically controlled silicon oil mechanical fan is controlled to rotate based on the target rotational speed. In the technical solution provided by the embodiment of the present application, the rotational speed of the electronically controlled silicone oil mechanical fan can be adjusted according to the parameter information of the whole vehicle, which can not only meet the heat dissipation requirements of the vehicle engine on the fan under most working conditions, but also achieve energy saving and reducing noise purpose. In addition, the vehicle's entire vehicle parameter information is collected through the engine control unit, and there is no need to develop an independent controller to control the speed of the electronically controlled silicone oil mechanical fan, which can not only save the cost of the entire vehicle, but also effectively avoid the failure of the gateway due to transit. This leads to the loss of vehicle parameter information, which leads to the failure of the control of the mechanical fan speed of the electronically controlled silicone oil.

In some embodiments, the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information; determining the target speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information includes: according to the vehicle parameter information The vehicle owner parameter information determines the initial rotational speed of the electronically controlled silicone oil mechanical fan; the initial rotational speed is corrected according to the vehicle correction parameter information, and the corrected initial rotational speed is used as the target rotational speed of the electronically controlled silicone oil mechanical fan . The advantage of this setting is that the target speed of the electronically controlled silicone oil mechanical fan can be more accurately determined according to the vehicle parameter information.

Exemplarily, the vehicle parameter information of the vehicle collected by the engine control unit may include vehicle owner parameter information and vehicle correction parameter information, wherein the vehicle owner parameter information can be understood as the main factor for determining the target rotational speed of the electronically controlled silicone oil mechanical fan. With reference to parameters, the vehicle correction parameter information can be understood as a reference parameter for adjusting and correcting the target rotational speed of the electronically controlled silicone oil mechanical fan determined based on the vehicle owner parameter information. For example, the vehicle main parameter information may include at least one of engine water temperature, ambient temperature, transmission oil temperature, intake air temperature, engine speed, and air conditioning pressure, and vehicle correction parameter information may include at least one of vehicle speed and atmospheric pressure.

In the embodiment of the present application, the initial rotational speed of the electronically controlled silicone oil mechanical fan is determined according to the vehicle owner parameter information, wherein the initial rotational speed can be understood as the preliminary target rotational speed of the electronically controlled silicone oil mechanical fan that is preliminarily determined based on the vehicle owner parameter information. Then, the initial rotational speed can be adjusted and corrected according to the vehicle correction parameters, and the corrected initial rotational speed can be used as the target rotational speed of the electronically controlled silicone oil mechanical fan. Optionally, when there are multiple vehicle owner parameter information, the initial speed corresponding to the vehicle owner parameter information may be determined based on the multiple vehicle owner parameter information, and then the maximum initial rotation speed among the multiple initial rotation speeds is determined. , as the final initial speed of the electronically controlled silicone oil mechanical fan determined based on all vehicle owner parameter information. Optionally, when there are multiple vehicle correction parameter information, the initial speed can also be corrected based on the multiple vehicle correction parameters, and the maximum value among the multiple corrected initial speeds can be used as the electronically controlled silicone oil machine. The target speed of the fan.

Optionally, determining the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information includes: obtaining a first correspondence table between vehicle owner parameter information and rotational speed; in the first correspondence table Find the rotational speed corresponding to the main parameter information of the whole vehicle as the initial rotational speed of the electronically controlled silicone oil mechanical fan. The advantage of this setting is that the initial rotational speed of the electronically controlled silicone oil mechanical fan can be determined accurately and quickly.

Exemplarily, when there are multiple vehicle owner parameter information, a first correspondence table of multiple vehicle owner parameters and rotational speeds may be obtained respectively, and the corresponding vehicle owner parameters may be searched in the first correspondence table respectively. For the speed corresponding to the information, the maximum value of all the found speeds is taken as the initial speed of the electronically controlled silicone oil mechanical fan. Optionally, when there are multiple vehicle owner parameter information, the multiple vehicle owner parameters can also be grouped, for example, at least two vehicle owner parameter information is grouped into a group, and the information of each group vehicle owner parameter information and the information of each vehicle owner are obtained. The corresponding relation table of rotational speed, according to the corresponding relation table, determine the rotational speed corresponding to the collected set of vehicle owner parameter information, and use the maximum rotational speed among the rotational speeds determined based on the multiple sets of vehicle owner parameter information as the initial speed.

Optionally, correcting the initial rotational speed according to the vehicle correction parameter information includes: obtaining a second correspondence table between vehicle correction parameter information and correction coefficients; the correction coefficient corresponding to the vehicle correction parameter information; and the initial rotational speed is corrected based on the correction coefficient. The advantage of this setting is that the determined target rotational speed of the electronically controlled silicone oil mechanical fan can be made more accurate.

Exemplarily, when there are multiple vehicle correction parameter information, a plurality of second correspondence tables of vehicle correction parameters and correction coefficients may be obtained respectively, and the corresponding vehicle correction tables may be searched in the second correspondence table respectively. For the correction coefficient corresponding to the parameter information, the product of the initial speed and the found correction coefficient is used as the correction value for the initial speed, and the maximum value of the corrected initial speed is used as the target speed of the electronically controlled silicone oil mechanical fan. Optionally, when there are multiple vehicle correction parameter information, the multiple vehicle correction parameters may also be grouped, for example, at least two complete vehicle correction parameter information are grouped into one group, and each group of vehicle correction parameter information and the complete vehicle correction parameter information are obtained. Correspondence table of correction coefficients. According to the correspondence table, the correction coefficients corresponding to the collected vehicle correction parameter information are determined, and the initial rotational speed is corrected based on the correction coefficients determined by multiple sets of vehicle correction parameter information. The maximum value after group correction is used as the target speed of the electronically controlled silicone oil mechanical fan.

In some embodiments, before controlling the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed, the method further includes: judging the magnitude relationship between the target rotational speed and the limit rotational speed of the electronically controlled silicon oil mechanical fan; Rotating the silicon controlled oil mechanical fan based on the target rotational speed includes: when the target rotational speed is less than the limit rotational speed, controlling the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed. Among them, the limit speed can be understood as the maximum speed that the electronically controlled silicone oil mechanical fan can achieve to ensure normal operation, and the relationship between the determined target speed and the limit speed is determined. When the target speed is less than the limit speed, the electronically controlled silicone oil mechanical fan is controlled based on the target speed. Rotation speed. Optionally, when the target speed is greater than the limit speed, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limit speed. The advantage of this setting is that, while meeting the heat dissipation requirements of the vehicle engine on the fan under most working conditions, it can ensure the service life of the electronically controlled silicone oil mechanical fan and avoid the failure caused by the electronically controlled silicone oil mechanical fan rotating at a speed greater than the limit speed. .

In some embodiments, the collected vehicle parameter information includes engine water temperature, ambient temperature, transmission oil temperature, intake air temperature, engine speed, air conditioning pressure, vehicle speed and atmospheric pressure, and the target of the electronically controlled silicone oil mechanical fan can be determined according to the following steps Rotating speed:

Step 1: Check Table 1.1 first, and jointly determine the target speed A1 of the electronically controlled silicone oil mechanical fan according to the water temperature and ambient temperature. Then look up Table 1.2, determine the correction coefficient B1 based on the vehicle speed and water temperature, and correct the target rotational speed A1 based on the correction coefficient B1, and obtain the corrected target rotational speed as A1B1.

Table 1.1 Correspondence table of water temperature, ambient temperature and mechanical fan speed

Table 1.2 Correspondence table of vehicle speed, water temperature and correction coefficient

Step 2: Look up Table 2.1, and determine the target speed A2 of the electronically controlled silicone oil mechanical fan according to the ambient temperature and the transmission oil temperature. Then look up Table 2.2 to determine the correction coefficient B2 by vehicle speed and transmission oil temperature. The target rotational speed A2 is corrected based on the correction coefficient B2, and the corrected target rotational speed is obtained as A2B2.

Table 2.1 Correspondence table of transmission oil temperature, ambient temperature and mechanical fan speed

Table 2.2 Correspondence table of vehicle speed, transmission oil temperature and correction coefficient

Step 3: First look up Table 3.1, and determine the target speed A3 of the fan according to the intake air temperature and ambient temperature; then look up Table 3.2, determine the correction coefficient B3 based on the vehicle speed and water temperature, and correct the target speed A3 based on the correction coefficient B3 to get the correction The target speed after that is A3B3.

Table 3.1 Correspondence table of intake air temperature, ambient temperature and mechanical fan speed

Table 3.2 Correspondence table of vehicle speed, water temperature and correction coefficient

Step 4: Look up Table 4.1, and determine the target speed A4 of the fan through the air-conditioning pressure and vehicle speed.

Table 4.1 Correspondence table of air-conditioning pressure, vehicle speed and mechanical fan speed

Step 5. Compare A1B1, A2B2, A3B3, and A4, and take the maximum value A5=Max(A1B1, A2B2, A3B3, A4).

Step 6: Look up Table 5.1, determine the correction coefficient B5 through atmospheric pressure and water temperature, and correct A5 to obtain the rotational speed A5B5.

Table 5.1 Correspondence table of atmospheric pressure, water temperature and correction coefficient

Step 7. Look up Table 6.1, and determine the target speed A6 of the electronically controlled silicone oil mechanical fan according to A5B5 and the engine speed. Compare A6 with the limit speed A7 of the electronically controlled silicon oil mechanical fan, take the minimum value A8=Min(A6, A7), and take A8 as the final target speed of the electronically controlled silicon oil mechanical fan.

In some embodiments, the method further includes: monitoring in real time whether the output signal of the Hall rotational speed sensor is abnormal; wherein, the Hall rotational speed sensor is integrated on the electronically controlled silicone oil mechanical fan; when determining the Hall rotational speed When the output signal of the sensor is abnormal, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limit speed. Exemplarily, the output signal of the Hall speed sensor can be acquired in real time through the ECU, and based on the output signal of the Hall speed sensor, it is determined whether the Hall speed sensor has a short circuit, an open circuit or an abnormal output, and when it is determined that the output signal of the Hall speed sensor is abnormal , make the electronically controlled silicone oil mechanical fan rotate based on the limit speed. The advantage of this setting is that when the Hall speed sensor is abnormal, the electronically controlled silicone oil mechanical fan can still run at full speed to ensure that the entire vehicle can work normally.

Table 6.1 Correspondence table of engine speed, fan demand speed and target speed

Fig. 4 is the schematic flow sheet of the control method of another kind of electronically controlled silicone oil mechanical fan that the embodiment of the application provides, as shown in Fig. 4, this method comprises the steps:

Step 410: Collect vehicle parameter information of the vehicle through the engine control unit; wherein, the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information.

Step 420: Determine the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information.

Step 430: Correct the initial rotational speed according to the vehicle correction parameter information, and use the corrected initial rotational speed as the target rotational speed of the electronically controlled silicon oil mechanical fan.

Step 440: Determine whether the target speed is less than the limit speed of the electronically controlled silicon oil mechanical fan, if the target speed is less than the limit speed of the electronically controlled silicon oil mechanical fan, then perform step 450, if the target speed is not less than Step 460 is executed for the limit speed of the silicone oil mechanical fan.

Step 450: Control the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed.

Optionally, controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed includes: determining a rotational speed control signal of the electronically controlled silicone oil mechanical fan according to the target rotational speed; controlling a silicone oil cavity valve plate based on the rotational speed control signal The opening or closing of the clutch; wherein, when the silicon oil chamber valve plate is in the open state, the flow of the silicone oil into the meshing part of the clutch is controlled; based on the amount of silicone oil in the meshing part of the clutch, the target shear torque generated by the clutch is determined; wherein , the longer the opening time of the silicon oil cavity valve plate, the greater the amount of silicon oil in the meshing part of the clutch; the rotation of the electronically controlled silicon oil mechanical fan is controlled based on the target shear torque.

Exemplarily, if the speed control signal of the electronically controlled silicone oil mechanical fan is a PWM signal, then the PWM signal of the electronically controlled silicone oil mechanical fan can be determined through the preset correspondence table of engine speed, fan target speed and PWM signal, and then the PWM signal can be used to determine the PWM signal. The signal controls the rotation of the electronically controlled silicone oil mechanical fan. As shown in Table 7, it is a correspondence table between the engine speed, the fan target speed and the PWM signal.

Step 460: Control the electronically controlled silicone oil mechanical fan to rotate based on the limit rotational speed.

In the method for controlling an electronically controlled silicone oil mechanical fan provided by the embodiment of the present application, the vehicle owner parameter information and vehicle correction parameter information of the vehicle are collected through an engine control unit; and the electronically controlled silicone oil is determined according to the vehicle owner parameter information. The initial speed of the mechanical fan, and the initial speed is corrected according to the vehicle correction parameter information, and the corrected initial speed is used as the target speed of the electronically controlled silicone oil mechanical fan. When the target speed is less than the limit speed of the electronically controlled silicone oil mechanical fan, control The electronically controlled silicon oil mechanical fan rotates based on the target rotational speed, and when the target rotational speed is greater than the limit rotational speed of the electronically controlled silicon oil mechanical fan, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limited rotational speed. The technical solutions provided by the embodiments of the present application can accurately adjust the rotational speed of the electronically controlled silicone oil mechanical fan according to the main parameter information and the correction parameter information of the whole vehicle, which can not only meet the heat dissipation requirements of the vehicle engine on the fan under most working conditions, but also It also achieves the purpose of energy saving and noise reduction. In addition, the vehicle parameter information is collected through the engine control unit, without the need to develop an independent controller to control the rotational speed of the electronically controlled silicone oil mechanical fan, which can not only save the vehicle cost, but also effectively avoid the failure of the gateway due to transit. This leads to the loss of vehicle parameter information, which leads to the failure of the control of the mechanical fan speed of the electronically controlled silicone oil.

Table 7 Correspondence table of engine speed, fan target speed and PWM signal

FIG. 5 is a schematic flowchart of another method for controlling an electronically controlled silicone oil mechanical fan provided by an embodiment of the application. As shown in FIG. 5 , the method includes the following steps:

Step 510: Collect vehicle parameter information of the vehicle through the engine control unit; wherein, the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information.

Optionally, the vehicle master parameter information may include at least one of engine water temperature, ambient temperature, transmission oil temperature, intake air temperature, engine speed, and air conditioning pressure, and vehicle correction parameter information may include vehicle speed and/or atmospheric pressure.

Step 520: Obtain a first correspondence table between vehicle owner parameter information and rotational speed.

Step 530: Find the rotational speed corresponding to the vehicle owner parameter information in the first correspondence table as the initial rotational speed of the electronically controlled silicone oil mechanical fan.

Step 540: Obtain a second correspondence table between vehicle correction parameter information and correction coefficients.

Step 550 , look up the correction coefficient corresponding to the vehicle correction parameter information in the second correspondence table.

Step 560: Correct the initial rotational speed based on the correction coefficient, and use the corrected initial rotational speed as the target rotational speed of the electronically controlled silicon oil mechanical fan.

Step 570: Determine whether the target speed is less than the limit speed of the electronically controlled silicone oil mechanical fan. If the target speed is less than the limit speed of the electronically controlled silicon oil mechanical fan, perform step 580. Step 5120 is executed for the limit rotational speed of the silicone oil mechanical fan.

Step 580: Determine the rotational speed control signal of the electronically controlled silicon oil mechanical fan according to the target rotational speed.

Step 590 , control the opening or closing of the silicon oil chamber valve plate based on the rotational speed control signal; wherein, when the silicon oil chamber valve plate is in the open state, control the flow of the silicone oil into the engaging part of the clutch.

Step 5100: Determine the target shear torque generated by the clutch based on the amount of silicone oil at the engaging portion of the clutch; wherein, the longer the opening time of the silicone oil chamber valve plate, the greater the amount of silicone oil at the engaging portion of the clutch.

Step 5110: Control the rotation of the electronically controlled silicone oil mechanical fan based on the target shear torque.

Step 5120: Control the electronically controlled silicone oil mechanical fan to rotate based on the limit rotational speed.

In the method for controlling an electronically controlled silicone oil mechanical fan provided by the embodiment of the present application, the vehicle owner parameter information and vehicle correction parameter information of the vehicle are collected through an engine control unit; and the electronically controlled silicone oil is determined according to the vehicle owner parameter information. The initial speed of the mechanical fan, and the initial speed is corrected according to the vehicle correction parameter information, and the corrected initial speed is used as the target speed of the electronically controlled silicone oil mechanical fan. When the target speed is less than the limit speed of the electronically controlled silicone oil mechanical fan, control The electronically controlled silicon oil mechanical fan rotates based on the target rotational speed, and when the target rotational speed is greater than the limit rotational speed of the electronically controlled silicon oil mechanical fan, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limited rotational speed. The technical solutions provided by the embodiments of the present application can accurately adjust the rotational speed of the electronically controlled silicone oil mechanical fan according to the main parameter information and the correction parameter information of the whole vehicle, which can not only meet the heat dissipation requirements of the vehicle engine on the fan under most working conditions, but also It also achieves the purpose of energy saving and noise reduction. In addition, the vehicle's entire vehicle parameter information is collected through the engine control unit, and there is no need to develop an independent controller to control the speed of the electronically controlled silicone oil mechanical fan, which can not only save the cost of the entire vehicle, but also effectively avoid the failure of the gateway due to transit. This leads to the loss of vehicle parameter information, which leads to the failure of the control of the mechanical fan speed of the electronically controlled silicone oil.

6 is a structural block diagram of a control device for an electronically controlled silicone oil mechanical fan provided by an embodiment of the application. The device can be implemented by software and/or hardware, and is generally integrated in a control system for an electronically controlled silicone oil mechanical fan. The control method of a silicon controlled oil mechanical fan is used to control the rotational speed of an electronically controlled silicon oil mechanical fan of a vehicle. As shown in Figure 6, the device includes:

The parameter information collection module 610 is configured to collect the vehicle parameter information of the vehicle through the engine control unit; the target rotational speed determination module 620 is configured to determine the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information; the rotational speed The control module 630 is configured to control the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed.

The control device for an electronically controlled silicone oil mechanical fan provided by the present application is applied to a vehicle. The electronically controlled silicone oil mechanical fan is integrated in the vehicle, including: collecting vehicle parameter information of the vehicle through an engine control unit; The parameter information determines the target rotational speed of the electronically controlled silicon oil mechanical fan; the electronically controlled silicon oil mechanical fan is controlled to rotate based on the target rotational speed. In the technical solution provided by the embodiment of the present application, the rotational speed of the electronically controlled silicone oil mechanical fan can be adjusted according to the parameter information of the whole vehicle, which can not only meet the heat dissipation requirements of the vehicle engine on the fan under most working conditions, but also achieve energy saving and reducing noise purpose. In addition, the vehicle's entire vehicle parameter information is collected through the engine control unit, and there is no need to develop an independent controller to control the speed of the electronically controlled silicone oil mechanical fan, which can not only save the cost of the entire vehicle, but also effectively avoid the failure of the gateway due to transit. This leads to the loss of vehicle parameter information, which leads to the failure of the control of the mechanical fan speed of the electronically controlled silicone oil.

Optionally, the rotational speed control module 630 is set to:

Determine the rotational speed control signal of the electronically controlled silicone oil mechanical fan according to the target rotational speed; control the opening or closing of the silicon oil chamber valve plate based on the rotational speed control signal; wherein, when the silicone oil chamber valve plate is in the open state, control the silicone oil flow into the engagement part of the clutch; based on the amount of silicone oil at the engagement part of the clutch, determine the target shear torque generated by the clutch; wherein, the longer the opening time of the silicone oil cavity valve plate, the amount of silicone oil at the engagement part of the clutch. The larger the value; the rotation of the electronically controlled silicone oil mechanical fan is controlled based on the target shear torque.

Optionally, the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information; the target rotational speed determination module 620 includes:

an initial rotational speed determination unit, configured to determine the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information; a target rotational speed determination unit configured to correct the initial rotational speed according to the vehicle correction parameter information, The corrected initial rotational speed is taken as the target rotational speed of the electronically controlled silicon oil mechanical fan.

Optionally, the initial speed determination unit, set to:

Obtain a first correspondence table between vehicle owner parameter information and rotational speed; look up the rotational speed corresponding to the vehicle owner parameter information in the first correspondence table as the initial rotational speed of the electronically controlled silicone oil mechanical fan.

Optionally, the target rotational speed determination unit is set to:

Obtaining a second correspondence table of vehicle correction parameter information and correction coefficients; searching for a correction coefficient corresponding to the vehicle correction parameter information in the second correspondence table; Correction.

Optionally, the device further includes:

a magnitude relationship judging module, configured to judge the magnitude relationship between the target rotational speed and the limit rotational speed of the electronically controlled silicon oil mechanical fan before controlling the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed; the rotational speed control module, Set as:

Optionally, the device further includes:

Monitor in real time whether the output signal of the Hall speed sensor is abnormal; wherein, the Hall speed sensor is integrated on the electronically controlled silicon oil mechanical fan; when it is determined that the output signal of the Hall speed sensor is abnormal, control the electronic control The silicone oil mechanical fan rotates based on the limit speed.

Embodiments of the present application also provide a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute a control method for an electronically controlled silicone oil mechanical fan when executed by a computer processor, and the method includes:

Collect vehicle parameter information of the vehicle through the engine control unit; determine the target rotational speed of the electronically controlled silicone oil mechanical fan according to the entire vehicle parameter information; control the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed.

storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as Compact Disc Read-Only Memory (CD-ROM), floppy disks, or tape devices; computer system memory or random access memory, such as dynamic random access memory (Dynamic Random Access Memory, DRAM), Double Data Rate Random Access Memory (Double Data Rate RAM, DDRRAM), Static Random Access Memory (Static RAM, SRAM), Extended Data Output Random Access Memory (Extended Data Output RAM) , EDORAM), Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (eg, hard disk or optical storage); registers or other similar types of memory elements, and the like. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a second, different computer system connected to the first computer system through a network such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations (eg, in different computer systems connected by a network). A storage medium may store program instructions (eg, implemented as a computer program) executable by one or more processors.

A storage medium containing computer-executable instructions provided by an embodiment of the present application, the computer-executable instructions of which are not limited to the control operation of the electronically controlled silicon oil mechanical fan as described above, and can also execute the electronic control operation provided by any embodiment of the present application. Relevant operations in the control method of thyristor oil mechanical fan.

The embodiment of the present application provides a control system for an electronically controlled silicon oil mechanical fan, and the control device for the electronically controlled silicon oil mechanical fan provided by the embodiment of the present application can be integrated into the control system of the electronically controlled silicon oil mechanical fan. FIG. 7 is a structural block diagram of a control system for an electronically controlled silicone oil mechanical fan according to an embodiment of the present application. The control system 700 for an electronically controlled silicone oil mechanical fan may include: a memory 710, a processor 720, and a computer program stored on the memory 710 and executed by the processor, when the processor 720 executes the computer program, the implementation of the present application Example of the control method of the electronically controlled silicone oil mechanical fan. The control system of the electronically controlled silicone oil mechanical fan provided in the embodiment of the present application collects the vehicle parameter information of the vehicle through the engine control unit; determines the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information; controls The electronically controlled silicone oil mechanical fan rotates based on the target rotational speed. The technical solutions provided in the embodiments of the present application can not only satisfy the heat dissipation requirements of the vehicle engine on the fan under most working conditions, but also achieve the purpose of energy saving and noise reduction. In addition, the vehicle's entire vehicle parameter information is collected through the engine control unit, and there is no need to develop an independent controller to control the speed of the electronically controlled silicone oil mechanical fan, which can not only save the cost of the entire vehicle, but also effectively avoid the failure of the gateway due to transit. This leads to the loss of vehicle parameter information, which leads to the failure of the control of the mechanical fan speed of the electronically controlled silicone oil.

The control device, storage medium and system for an electronically controlled silicone oil mechanical fan provided in the above embodiments can execute the control method for an electronically controlled silicone oil mechanical fan provided by any embodiment of the present application, and have corresponding functional modules and effects for executing the method. For technical details that are not described in detail in the above embodiments, reference may be made to the control method for an electronically controlled silicone oil mechanical fan provided by any embodiment of the present application.

Claims

A control method for an electronically controlled silicon oil mechanical fan, which is applied to a vehicle, wherein the electronically controlled silicon oil mechanical fan is integrated in the vehicle, comprising:

Collect vehicle parameter information of the vehicle through the engine control unit;

Determine the target speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information;

The electronically controlled silicone oil mechanical fan is controlled to rotate based on the target rotational speed.
The method according to claim 1, wherein the controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed comprises:

Determine the rotational speed control signal of the electronically controlled silicone oil mechanical fan according to the target rotational speed;

Controlling the opening or closing of the silicon oil chamber valve plate based on the rotational speed control signal; wherein, when the silicone oil chamber valve plate is in an open state, the silicone oil is controlled to flow into the engaging part of the clutch;

The target shear torque generated by the clutch is determined based on the amount of silicone oil at the engagement portion of the clutch; wherein, the longer the opening time of the silicone oil cavity valve plate, the greater the amount of silicone oil at the engagement portion of the clutch;

The electronically controlled silicone oil mechanical fan is controlled to rotate based on the target shear torque.
The method according to claim 1, wherein the vehicle parameter information includes vehicle owner parameter information and vehicle correction parameter information;

The determining of the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information includes:

Determine the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information;

The initial rotational speed is corrected according to the vehicle correction parameter information, and the corrected initial rotational speed is used as the target rotational speed of the electronically controlled silicon oil mechanical fan.
The method according to claim 3, wherein the determining the initial rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle owner parameter information comprises:

Obtain the first correspondence table between vehicle owner parameter information and rotational speed;

In the first correspondence table, look up the rotational speed corresponding to the vehicle owner parameter information as the initial rotational speed of the electronically controlled silicone oil mechanical fan.
The method according to claim 3, wherein the correcting the initial rotational speed according to the vehicle correction parameter information comprises:

obtaining a second correspondence table between vehicle correction parameter information and correction coefficients;

looking up the correction coefficient corresponding to the vehicle correction parameter information in the second correspondence table;

The initial rotational speed is corrected based on the correction coefficient.
The method according to claim 1, before the controlling the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed, further comprising:

Determine the magnitude relationship between the target rotational speed and the limit rotational speed of the electronically controlled silicone oil mechanical fan;

Controlling the electronically controlled silicone oil mechanical fan to rotate based on the target rotational speed includes:

When the target rotational speed is less than the limit rotational speed, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the target rotational speed.
The method of claim 1, further comprising:

Monitor in real time whether the output signal of the Hall speed sensor is abnormal; wherein, the Hall speed sensor is integrated on the electronically controlled silicone oil mechanical fan;

When it is determined that the output signal of the Hall rotational speed sensor is abnormal, the electronically controlled silicon oil mechanical fan is controlled to rotate based on the limit rotational speed.
A control device for an electronically controlled silicone oil mechanical fan, applied to a vehicle, wherein the electronically controlled silicone oil mechanical fan is integrated in the vehicle, comprising:

a parameter information collection module, configured to collect vehicle parameter information of the vehicle through the engine control unit;

a target rotational speed determination module, configured to determine the target rotational speed of the electronically controlled silicone oil mechanical fan according to the vehicle parameter information;

A rotational speed control module configured to control the electronically controlled silicon oil mechanical fan to rotate based on the target rotational speed.
A computer-readable storage medium storing a computer program, wherein when the program is executed by a processor, the control method for an electronically controlled silicone oil mechanical fan according to any one of claims 1-7 is implemented.
A control system for an electronically controlled silicone oil mechanical fan, comprising a memory, a processor and a computer program stored on the memory and running on the processor, wherein, when the processor executes the computer program, The control method of the electronically controlled silicone oil mechanical fan according to any one of claims 1-7.