Control method, device, equipment and storage medium of electromagnetic clutch fan

Abstract

The present invention relates to the field of vehicle control technology, and discloses a control method, device, equipment and storage medium for an electromagnetic clutch fan. The method comprises: when it is detected that a retarder and an air conditioner of a vehicle are in an on state, obtaining a vehicle speed and an engine speed; determining a first gear control strategy according to the vehicle speed and the engine speed through a first MAP calibration module; determining a second gear control strategy according to the engine speed and the gear of the retarder through a second MAP calibration module; controlling the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; through the above-mentioned manner, the vehicle speed and the engine speed are introduced, and a first MAP calibration module and a second MAP calibration module are newly added, and then the operating gear of the electromagnetic clutch fan is controlled according to the first gear control strategy and the second gear control strategy, so as to improve the accuracy of controlling the operation of the electromagnetic clutch fan, thereby reducing the fuel consumption of the whole vehicle and improving the driving experience.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a control method, device, equipment and storage medium for an electromagnetic clutch fan. Background Art

[0002] The electromagnetic clutch fan has the functions of noise reduction and fuel saving, and is widely used in various models, especially commercial vehicles. The current technology for controlling the electromagnetic clutch fan is based on the vehicle's water temperature, air-conditioning pressure, intake temperature, retarder and other parameters. However, when the air-conditioning pressure is turned on, when the intake temperature is high, and the retarder is turned on, the electromagnetic clutch fan will be directly controlled to run at full speed, resulting in increased fuel consumption and weakened power acceleration, causing the user's driving experience to be extremely poor.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a control method, device, equipment and storage medium for an electromagnetic clutch fan, aiming to solve the technical problem that the accuracy of the prior art in controlling the operation of the electromagnetic clutch fan is low, resulting in high fuel consumption of the whole vehicle and poor driving experience.

[0005] To achieve the above object, the present invention provides a control method for an electromagnetic clutch fan, the control method for an electromagnetic clutch fan comprising the following steps:

[0006] When it is detected that the retarder and the air conditioner of the vehicle are in the turned-on state, obtaining the vehicle speed and the engine speed of the vehicle;

[0007] determining a first gear control strategy according to the vehicle speed and the engine speed by a first MAP calibration module;

[0008] Determining a second gear control strategy according to the engine speed and the gear position of the retarder by a second MAP calibration module;

[0009] The electromagnetic clutch fan is controlled according to the first gear control strategy and the second gear control strategy.

[0010] Optionally, controlling the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy includes:

[0011] determining a first operating gear position of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear position control strategy;

[0012] determining a second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy;

[0013] The electromagnetic clutch fan is controlled according to the first operating gear and the second operating gear.

[0014] Optionally, before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, the method further includes:

[0015] Get the current water temperature and current intake air temperature of the engine;

[0016] When the current water temperature is greater than a first water temperature threshold and / or the current intake air temperature is greater than a preset temperature threshold, determining a third operating gear for controlling the electromagnetic clutch fan;

[0017] The electromagnetic clutch fan is controlled according to the first operating gear, the second operating gear and the third operating gear.

[0018] Optionally, before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, the method further includes:

[0019] Get the current water temperature of the vehicle;

[0020] When the current water temperature of the vehicle is less than the second preset water temperature threshold and the current water temperature of the engine is greater than the third preset water temperature threshold, determining a fourth operating gear for controlling the electromagnetic clutch fan;

[0021] The electromagnetic clutch fan is controlled according to the first operating gear, the second operating gear and the fourth operating gear.

[0022] Optionally, after obtaining the current water temperature of the vehicle, the method further includes:

[0023] When the current water temperature of the vehicle is less than a fourth preset water temperature threshold and the current water temperature of the engine is less than a third preset water temperature threshold, determining a fifth operating gear for controlling the electromagnetic clutch fan;

[0024] The electromagnetic clutch fan is controlled according to the first operating gear, the second operating gear and the fifth operating gear.

[0025] Optionally, controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear includes:

[0026] generating a set of operating gears to be selected according to the first operating gear, the second operating gear, the third operating gear, the fourth operating gear and the fifth operating gear;

[0027] Acquiring actual driving parameters of the vehicle, and determining actual fan demand according to the actual driving parameters;

[0028] Selecting a target required gear from the set of to-be-selected operating gears according to the actual fan demand;

[0029] Determining the rotation speed of the electromagnetic clutch fan according to the target required gear position;

[0030] The electromagnetic clutch fan is controlled to operate at the target required gear position and speed.

[0031] Optionally, after the first operating gear and the second operating gear control the electromagnetic clutch fan, the method further includes:

[0032] Obtaining the operating frequency of the electromagnetic clutch fan;

[0033] Calculating the control operation power consumption of the electromagnetic clutch fan according to the operation frequency and rotation speed;

[0034] Obtaining the normal operating power consumption of the electromagnetic clutch fan;

[0035] When the controlled operation power consumption of the electromagnetic clutch fan is less than the normal operation power consumption, the electromagnetic clutch fans of other vehicles are controlled.

[0036] In addition, to achieve the above object, the present invention further provides a control device for an electromagnetic clutch fan, the control device for an electromagnetic clutch fan comprising:

[0037] A detection module, for obtaining the vehicle speed and engine speed of the vehicle when detecting that the retarder and air conditioner of the vehicle are in an on state;

[0038] a determination module, configured to determine a first gear control strategy according to the vehicle speed and the engine speed through a first MAP calibration module;

[0039] The determination module is further used to determine a second gear control strategy according to the engine speed and the gear position of the retarder through a second MAP calibration module;

[0040] A control module is used to control the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy.

[0041] In addition, to achieve the above-mentioned purpose, the present invention also proposes a control device for an electromagnetic clutch fan, the control device for the electromagnetic clutch fan comprising: a memory, a processor, and a control program for the electromagnetic clutch fan stored in the memory and executable on the processor, the control program for the electromagnetic clutch fan being configured to implement the control method for the electromagnetic clutch fan as described above.

[0042] In addition, to achieve the above objectives, the present invention further proposes a storage medium, on which a control program for an electromagnetic clutch fan is stored. When the control program for the electromagnetic clutch fan is executed by a processor, the control method for the electromagnetic clutch fan as described above is implemented.

[0043] The control method of the electromagnetic clutch fan proposed in the present invention obtains the vehicle speed and engine speed of the vehicle when it is detected that the retarder and the air conditioner of the vehicle are in the on state; determines the first gear control strategy according to the vehicle speed and the engine speed through the first MAP calibration module; determines the second gear control strategy according to the engine speed and the gear of the retarder through the second MAP calibration module; controls the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; through the above manner, the vehicle speed and engine speed are introduced, and the first MAP calibration module and the second MAP calibration module are newly added, and then the operating gear of the electromagnetic clutch fan is controlled according to the first gear control strategy and the second gear control strategy, so as to improve the accuracy of controlling the operation of the electromagnetic clutch fan, thereby reducing the fuel consumption of the whole vehicle and improving the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of a control device for an electromagnetic clutch fan in a hardware operating environment involved in an embodiment of the present invention;

[0045] Figure 2 It is a flow chart of a first embodiment of a control method for an electromagnetic clutch fan of the present invention;

[0046] Figure 3 It is a flow chart of a second embodiment of a control method for an electromagnetic clutch fan of the present invention;

[0047] Figure 4 A schematic diagram of the first MAP calibration module calibrating the gear position in an embodiment of the control method for an electromagnetic clutch fan of the present invention;

[0048] Figure 5 A schematic diagram of the gear position calibration of the second MAP calibration module according to an embodiment of the control method for an electromagnetic clutch fan of the present invention;

[0049] Figure 6 It is a functional module diagram of the first embodiment of the control device for the electromagnetic clutch fan of the present invention.

[0050] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0052] Reference Figure 1 , Figure 1 The present invention is a schematic diagram of the structure of a control device for an electromagnetic clutch fan in a hardware operating environment according to an embodiment of the present invention.

[0053] like Figure 1 As shown, the control device of the electromagnetic clutch fan may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0054] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the control device of the electromagnetic clutch fan, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0055] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a control program for an electromagnetic clutch fan.

[0056] exist Figure 1 In the control device of the electromagnetic clutch fan shown, the network interface 1004 is mainly used for data communication with the network integration platform workstation; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the control device of the electromagnetic clutch fan of the present invention can be set in the control device of the electromagnetic clutch fan, and the control device of the electromagnetic clutch fan calls the control program of the electromagnetic clutch fan stored in the memory 1005 through the processor 1001, and executes the control method of the electromagnetic clutch fan provided in the embodiment of the present invention.

[0057] Based on the above hardware structure, an embodiment of a control method for an electromagnetic clutch fan of the present invention is proposed.

[0058] Reference Figure 2 , Figure 2 It is a flow chart of a first embodiment of a control method for an electromagnetic clutch fan according to the present invention.

[0059] In a first embodiment, the control method of the electromagnetic clutch fan comprises the following steps:

[0060] Step S10, when it is detected that the retarder and the air conditioner of the vehicle are in the on state, the vehicle speed and the engine speed of the vehicle are obtained.

[0061] It should be noted that the executor of this embodiment is the control device of the electromagnetic clutch fan, and may also be other devices that can achieve the same or similar functions, such as a vehicle controller, etc. This embodiment does not limit this. In this embodiment, a vehicle controller is taken as an example for explanation.

[0062] It should be understood that the retarder refers to a device that decelerates the vehicle by generating a reverse torque. Specifically, the excitation coil of the stator assembly is energized through the control circuit to generate a magnetic field. At this time, the rotor assembly rotates at high speed with the vehicle's transmission part to cut the magnetic lines of force, generating a reverse torque in the process of cutting. The retarder may be a hydraulic retarder. When controlling the electromagnetic clutch fan, it is necessary to detect whether the vehicle's retarder and air conditioner are in the on state. If so, the vehicle speed and engine speed. The vehicle speed refers to the speed of the vehicle during driving, and the engine speed refers to the speed of the engine during driving. The vehicle may be a commercial vehicle.

[0063] It should be emphasized that the operating modes of the electromagnetic clutch fan are divided into inertial idling, proportional speed operation and full speed operation, and the corresponding gears are 0, 1 and 2 respectively. The operation of the electromagnetic clutch fan can reduce the temperature of the vehicle and reduce the loss of the vehicle.

[0064] Step S20: determining a first gear control strategy according to the vehicle speed and the engine speed by a first MAP calibration module.

[0065] It can be understood that the first MAP calibration module refers to the MAP calibration module that controls the gear of the electromagnetic clutch fan after the retarder is turned on, and the first gear control strategy refers to the strategy that controls the gear of the electromagnetic clutch fan according to the retarder, vehicle speed and engine speed.

[0066] Step S30: determining a second gear control strategy according to the engine speed and the gear position of the retarder by a second MAP calibration module.

[0067] It should be understood that the second MAP calibration module refers to the MAP calibration module that controls the gear position of the electromagnetic clutch fan after the air conditioner is turned on, and the second gear control strategy refers to the strategy of controlling the gear position of the electromagnetic clutch fan according to the air conditioner, engine speed and the gear position of the retarder. The second MAP calibration module takes into account the situation when the vehicle speed is high and the headwind speed is large, which can generate sufficient intake air cooling.

[0068] Step S40: controlling the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy.

[0069] It can be understood that after obtaining the first gear control strategy and the second gear control strategy, the first gear control strategy and the second gear control strategy are used to jointly control the gear and speed of the electromagnetic clutch fan, thereby effectively reducing the operating frequency and operating speed of the electromagnetic clutch fan, reducing power consumption and fuel consumption of the entire vehicle.

[0070] Further, step S40 includes: generating a set of to-be-selected operating gears according to the first operating gear, the second operating gear, the third operating gear, the fourth operating gear and the fifth operating gear; obtaining actual driving parameters of the vehicle, and determining actual fan requirements according to the actual driving parameters; selecting a target required gear from the set of to-be-selected operating gears according to the actual fan requirements; determining the speed of the electromagnetic clutch fan according to the target required gear; and controlling the electromagnetic clutch fan to operate at the target required gear and speed.

[0071] It should be understood that the first operating gear, the second operating gear, the third operating gear, the fourth operating gear and the fifth operating gear are respectively the gears of the electromagnetic clutch fan required by different modules. The set of operating gears to be selected refers to a set of operating gears of the electromagnetic clutch fan output by each module according to different conditions. The actual driving parameter refers to the actual parameter of the vehicle during driving. The actual fan demand is determined according to the actual driving parameter. The actual fan demand refers to the maximum gear demand for the electromagnetic clutch fan. Then, according to the actual fan demand, the target demand gear is selected from the set of operating gears to be selected. The target demand gear refers to the maximum gear corresponding to the actual fan demand. Then, the speed of the electromagnetic clutch fan corresponding to the target demand gear is determined, and then the electromagnetic clutch fan is controlled to run at the target demand gear and speed. For example, the target demand gear is 1st gear, and the engine speed is A. At this time, the speed of the electromagnetic clutch fan is determined to be 65% of the engine speed, and the electromagnetic clutch fan runs at 1st gear and A*65%.

[0072] Furthermore, after step S40, it also includes: obtaining the operating frequency of the electromagnetic clutch fan; calculating the controlled operating power consumption of the electromagnetic clutch fan according to the operating frequency and the rotational speed; obtaining the normal operating power consumption of the electromagnetic clutch fan; and when the controlled operating power consumption of the electromagnetic clutch fan is less than the normal operating power consumption, controlling the electromagnetic clutch fans of other vehicles.

[0073] It can be understood that the operating frequency refers to the frequency at which the electromagnetic clutch fan runs during the driving process of the vehicle. The higher the operating frequency, the more times the electromagnetic clutch fan runs. The controlled operating power consumption refers to the power consumption caused by controlling the operation of the electromagnetic clutch fan using this embodiment. The conventional operating power consumption refers to the power consumption caused by controlling the operation of the electromagnetic clutch fan in a conventional manner. Then, it is determined whether the controlled operating power consumption of the electromagnetic clutch fan is less than the conventional operating power consumption. If so, it indicates that the power consumption of controlling the electromagnetic clutch fan in this embodiment is lower. At this time, the method of controlling the electromagnetic clutch fan in this embodiment can be used to control the electromagnetic clutch fans of other vehicles.

[0074] This embodiment obtains the vehicle speed and engine speed of the vehicle when it is detected that the retarder and the air conditioner of the vehicle are in the on state; determines the first gear control strategy according to the vehicle speed and the engine speed through the first MAP calibration module; determines the second gear control strategy according to the engine speed and the gear of the retarder through the second MAP calibration module; controls the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; through the above method, the vehicle speed and engine speed are introduced, and the first MAP calibration module and the second MAP calibration module are newly added, and then the operating gear of the electromagnetic clutch fan is controlled according to the first gear control strategy and the second gear control strategy, so as to improve the accuracy of controlling the operation of the electromagnetic clutch fan, thereby reducing the fuel consumption of the whole vehicle and improving the driving experience.

[0075] In one embodiment, if Figure 3 Based on the first embodiment, a second embodiment of the control method of the electromagnetic clutch fan of the present invention is proposed, wherein step S40 comprises:

[0076] Step S401: determining a first operating gear of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear control strategy.

[0077] It should be understood that after obtaining the first gear control strategy, the first operating gear of the electromagnetic clutch fan calibrated by the first MAP calibration module is determined according to the first gear control strategy. Specifically, when the retarder is in a low gear, the electromagnetic clutch fan also chooses to run in a low gear. For example, the retarder gear is 2nd gear and the electromagnetic clutch fan is 1st gear. When the engine speed is high, the speed of the electromagnetic clutch fan after direct connection is also high. At this time, according to the actual calibration situation, the electromagnetic clutch fan can also choose to run in a low gear, for example, 1st gear, refer to Figure 4 , Figure 4 This is a schematic diagram of the gear position calibrated by the first MAP calibration module, specifically, the horizontal axis represents the vehicle speed, and the vertical axis represents the engine speed. That is, after the retarder is turned on, the gear position calibrated by the first MAP calibration module for controlling the electromagnetic clutch fan is determined according to the vehicle speed and the engine speed.

[0078] Step S402: determining a second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy.

[0079] It can be understood that after obtaining the second gear control strategy, the second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module is determined according to the second gear control strategy. Specifically, when the vehicle speed is high, the oncoming wind speed is large, and sufficient intake air cooling can be generated, the operating gear of the electromagnetic clutch fan can be appropriately reduced, for example, from the 2nd gear to the 1st gear. When the engine speed is high, the speed of the electromagnetic clutch fan after direct connection is also high. At this time, a low gear can be selected for operation, for example, the 1st gear, refer to Figure 5 , Figure 5 This is a schematic diagram of the gear position calibration of the second MAP calibration module. Specifically, the horizontal axis represents the gear position of the retarder, and the vertical axis represents the engine speed. That is, after the air conditioner is turned on, the gear position calibrated by the second MAP calibration module for controlling the electromagnetic clutch fan is determined according to the engine speed and the gear position of the retarder.

[0080] Step S403: controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear.

[0081] It should be understood that after the first operating gear and the second operating gear are obtained, the electromagnetic clutch fan is controlled according to the first operating gear and the second operating gear.

[0082] Furthermore, before step S403, the process further includes: obtaining the current water temperature and the current intake air temperature of the engine.

[0083] Temperature; when the current water temperature is greater than the first water temperature threshold and / or the current intake air temperature is greater than the preset temperature threshold of 5 degrees, determine the third operating gear for controlling the electromagnetic clutch fan; control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the third operating gear.

[0084] It is understandable that before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, it is also necessary to consider the requirements of other conditions on the electromagnetic clutch fan, for example, the current water level of the engine.

[0085] Temperature and current intake temperature. The current water temperature of the engine refers to the water temperature of the engine at the current moment. When the intake temperature is 0, it refers to the temperature of the gas entering at the current moment. Then judge whether the current water temperature is greater than

[0086] The first water temperature threshold, and whether the current intake air temperature is greater than the preset temperature threshold. If any of the above conditions is met, the third operating gear for controlling the electromagnetic clutch fan is determined. The third operating gear can be gear 2, and the electromagnetic clutch fan runs at full speed.

[0087] Furthermore, before step S403, it also includes: obtaining the current water temperature of the vehicle; when the current water temperature of the vehicle 5 is less than the second preset water temperature threshold and the current water temperature of the engine is greater than the third preset water temperature threshold, determining the fourth operating gear for controlling the electromagnetic clutch fan; and controlling the electromagnetic clutch fan according to the first operating gear, the second operating gear and the fourth operating gear.

[0088] It should be understood that before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, it is also necessary to consider other conditions for the electromagnetic clutch fan, for example, the current water temperature of the vehicle. The current water temperature of the vehicle refers to the temperature of the vehicle at the current moment. Then, it is determined whether the current water temperature of the vehicle is less than the second preset water temperature threshold, and whether the current water temperature of the engine is greater than the third preset water temperature threshold. If all of the above conditions are met, the fourth operating gear for controlling the electromagnetic clutch fan is determined. The fourth operating gear can be gear 1, and the electromagnetic clutch fan operates at 65% of the engine speed.

[0089] Furthermore, after obtaining the current water temperature of the vehicle, the method further includes: when the current water temperature of the vehicle is less than a fourth preset water temperature threshold and the current water temperature of the engine is less than a third preset water temperature threshold,

[0090] Determine a fifth operating gear for controlling the electromagnetic clutch fan; and control the electromagnetic clutch fan according to the first operating gear, the second operating gear, and the fifth operating gear.

[0091] It is understandable that if it is determined that the current water temperature of the vehicle is less than the fourth preset water temperature threshold and the engine

[0092] If the current water temperature is less than the third preset water temperature threshold, the fifth operating gear for controlling the electromagnetic clutch fan is determined, and the fifth operating gear can be 0 gear, and the electromagnetic clutch fan inertia idles.

[0093] This embodiment determines the first operating gear of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear control strategy; determines the second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy; controls the electromagnetic clutch fan according to the first operating gear and the second operating gear; through the above method, the first operating gear is determined according to the first gear control strategy and the first MAP calibration module, and the second operating gear is determined according to the second gear control strategy and the second MAP calibration module, and then the electromagnetic clutch fan is controlled simultaneously using the first operating gear and the second operating gear, thereby effectively improving the accuracy and rationality of controlling the electromagnetic clutch fan.

[0094] In addition, an embodiment of the present invention further provides a storage medium, on which a control program for an electromagnetic clutch fan is stored. When the control program for the electromagnetic clutch fan is executed by a processor, the steps of the control method for the electromagnetic clutch fan as described above are implemented.

[0095] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0096] In addition, refer to Figure 6 The embodiment of the present invention further provides a control device for an electromagnetic clutch fan, the control device for an electromagnetic clutch fan comprising:

[0097] The detection module 10 is used to obtain the vehicle speed and engine speed of the vehicle when it is detected that the retarder and air conditioner of the vehicle are in the turned-on state.

[0098] The determination module 20 is used to determine the first gear control strategy according to the vehicle speed and the engine speed through a first MAP calibration module.

[0099] The determination module 20 is further configured to determine a second gear control strategy according to the engine speed and the gear position of the retarder through a second MAP calibration module.

[0100] The control module 30 is used to control the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy.

[0101] This embodiment obtains the vehicle speed and engine speed of the vehicle when it is detected that the retarder and the air conditioner of the vehicle are in the on state; determines the first gear control strategy according to the vehicle speed and the engine speed through the first MAP calibration module; determines the second gear control strategy according to the engine speed and the gear of the retarder through the second MAP calibration module; controls the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; through the above method, the vehicle speed and engine speed are introduced, and the first MAP calibration module and the second MAP calibration module are newly added, and then the operating gear of the electromagnetic clutch fan is controlled according to the first gear control strategy and the second gear control strategy, so as to improve the accuracy of controlling the operation of the electromagnetic clutch fan, thereby reducing the fuel consumption of the whole vehicle and improving the driving experience.

[0102] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0103] In addition, for technical details not fully described in this embodiment, reference can be made to the control method of the electromagnetic clutch fan provided in any embodiment of the present invention, and will not be repeated here.

[0104] In one embodiment, the control module 30 is also used to determine the first operating gear of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear control strategy; determine the second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy; and control the electromagnetic clutch fan according to the first operating gear and the second operating gear.

[0105] In one embodiment, the control module 30 is also used to obtain the current water temperature and the current intake temperature of the engine; when the current water temperature is greater than the first water temperature threshold and / or the current intake temperature is greater than the preset temperature threshold, determine the third operating gear for controlling the electromagnetic clutch fan; and control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the third operating gear.

[0106] In one embodiment, the control module 30 is also used to obtain the current water temperature of the vehicle; when the current water temperature of the vehicle is less than the second preset water temperature threshold and the current water temperature of the engine is greater than the third preset water temperature threshold, determine the fourth operating gear for controlling the electromagnetic clutch fan; and control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the fourth operating gear.

[0107] In one embodiment, the control module 30 is also used to determine the fifth operating gear for controlling the electromagnetic clutch fan when the current water temperature of the vehicle is less than a fourth preset water temperature threshold and the current water temperature of the engine is less than a third preset water temperature threshold; and to control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the fifth operating gear.

[0108] In one embodiment, the control module 30 is also used to generate a set of to-be-selected operating gears according to the first operating gear, the second operating gear, the third operating gear, the fourth operating gear and the fifth operating gear; obtain actual driving parameters of the vehicle, and determine actual fan requirements according to the actual driving parameters; select a target required gear from the set of to-be-selected operating gears according to the actual fan requirements; determine the speed of the electromagnetic clutch fan according to the target required gear; and control the electromagnetic clutch fan to operate at the target required gear and speed.

[0109] In one embodiment, the control module 30 is also used to obtain the operating frequency of the electromagnetic clutch fan; calculate the control operating power consumption of the electromagnetic clutch fan according to the operating frequency and the rotation speed; obtain the normal operating power consumption of the electromagnetic clutch fan; and control the electromagnetic clutch fans of other vehicles when the control operating power consumption of the electromagnetic clutch fan is less than the normal operating power consumption.

[0110] Other embodiments of the control device for the electromagnetic clutch fan of the present invention or implementation methods thereof may refer to the above-mentioned method embodiments, which will not be repeated here.

[0111] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0112] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0113] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, an integrated platform workstation, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0114] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A control method for an electromagnetic clutch fan, characterized in that: The control method of the electromagnetic clutch fan comprises the following steps: When it is detected that the retarder and the air conditioner of the vehicle are in the turned-on state, obtaining the vehicle speed and the engine speed of the vehicle; determining a first gear control strategy according to the vehicle speed and the engine speed by a first MAP calibration module; Determining a second gear control strategy according to the engine speed and the gear position of the retarder by a second MAP calibration module; Controlling the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; The controlling the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy includes: determining a first operating gear position of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear position control strategy; determining a second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy; controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear; Before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, the method further includes: Get the current water temperature of the vehicle; When the current water temperature of the vehicle is less than the second preset water temperature threshold and the current water temperature of the engine is greater than the third preset water temperature threshold, determining a fourth operating gear for controlling the electromagnetic clutch fan; Controlling the electromagnetic clutch fan according to the first operating gear, the second operating gear, and the fourth operating gear; When the current water temperature of the vehicle is less than a fourth preset water temperature threshold and the current water temperature of the engine is less than a third preset water temperature threshold, determining a fifth operating gear for controlling the electromagnetic clutch fan; Controlling the electromagnetic clutch fan according to the first operating gear, the second operating gear, and the fifth operating gear; After the electromagnetic clutch fan is controlled according to the first operating gear and the second operating gear, the method further includes: Obtaining the operating frequency of the electromagnetic clutch fan; Calculating the control operation power consumption of the electromagnetic clutch fan according to the operation frequency and rotation speed; Obtaining the normal operating power consumption of the electromagnetic clutch fan; When the controlled operation power consumption of the electromagnetic clutch fan is less than the normal operation power consumption, the electromagnetic clutch fans of other vehicles are controlled.

2. The control method of the electromagnetic clutch fan according to claim 1, characterized in that: Before controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear, the method further includes: Get the current water temperature and current intake air temperature of the engine; When the current water temperature is greater than a first water temperature threshold and / or the current intake air temperature is greater than a preset temperature threshold, determining a third operating gear for controlling the electromagnetic clutch fan; The electromagnetic clutch fan is controlled according to the first operating gear, the second operating gear and the third operating gear.

3. The control method of the electromagnetic clutch fan according to claim 1, characterized in that: The controlling the electromagnetic clutch fan according to the first operating gear and the second operating gear comprises: generating a set of operating gears to be selected according to the first operating gear, the second operating gear, the third operating gear, the fourth operating gear and the fifth operating gear; Acquiring actual driving parameters of the vehicle, and determining actual fan demand according to the actual driving parameters; Selecting a target required gear from the set of to-be-selected operating gears according to the actual fan demand; Determining the rotation speed of the electromagnetic clutch fan according to the target required gear position; The electromagnetic clutch fan is controlled to operate at the target required gear position and speed.

4. A control device for an electromagnetic clutch fan, characterized in that: The control device of the electromagnetic clutch fan comprises: A detection module, for obtaining the vehicle speed and engine speed of the vehicle when detecting that the retarder and air conditioner of the vehicle are in an on state; a determination module, configured to determine a first gear control strategy according to the vehicle speed and the engine speed through a first MAP calibration module; The determination module is further used to determine a second gear control strategy according to the engine speed and the gear position of the retarder through a second MAP calibration module; A control module, configured to control the electromagnetic clutch fan according to the first gear control strategy and the second gear control strategy; The control module is further used to determine the first operating gear of the electromagnetic clutch fan calibrated by the first MAP calibration module according to the first gear control strategy; determine the second operating gear of the electromagnetic clutch fan calibrated by the second MAP calibration module according to the second gear control strategy; and control the electromagnetic clutch fan according to the first operating gear and the second operating gear; The control module is further used to obtain the current water temperature of the vehicle; when the current water temperature of the vehicle is less than the second preset water temperature threshold and the current water temperature of the engine is greater than the third preset water temperature threshold, determine the fourth operating gear for controlling the electromagnetic clutch fan; control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the fourth operating gear; when the current water temperature of the vehicle is less than the fourth preset water temperature threshold and the current water temperature of the engine is less than the third preset water temperature threshold, determine the fifth operating gear for controlling the electromagnetic clutch fan; control the electromagnetic clutch fan according to the first operating gear, the second operating gear and the fifth operating gear; The control module is also used to obtain the operating frequency of the electromagnetic clutch fan; calculate the control operating power consumption of the electromagnetic clutch fan according to the operating frequency and the rotation speed; obtain the normal operating power consumption of the electromagnetic clutch fan; and control the electromagnetic clutch fans of other vehicles when the control operating power consumption of the electromagnetic clutch fan is less than the normal operating power consumption.

5. A control device for an electromagnetic clutch fan, characterized in that: The control device of the electromagnetic clutch fan includes: a memory, a processor, and a control program of the electromagnetic clutch fan stored in the memory and executable on the processor, wherein the control program of the electromagnetic clutch fan is configured to implement a control method of the electromagnetic clutch fan as described in any one of claims 1 to 3.

6. A storage medium, characterized in that: The storage medium stores a control program for the electromagnetic clutch fan. When the control program for the electromagnetic clutch fan is executed by the processor, the control method for the electromagnetic clutch fan according to any one of claims 1 to 3 is implemented.

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