Control method and device of engine heat dissipation system, vehicle and storage medium

Abstract

The application relates to a control method and device of an engine heat dissipation system, a vehicle and a storage medium. The engine heat dissipation system comprises a thermostat connected with an engine and a radiator connected with the thermostat, and the method comprises the following steps: if an air conditioner compressor is in a non-starting state, the current temperature of engine coolant is acquired, and it is judged whether the current temperature is less than a first preset temperature; if the current temperature is less than the first preset temperature, the thermostat, a condensing fan and an electronic fan are all controlled to be in a closed state, otherwise, the condensing fan and the thermostat are started, so that the engine coolant enters the radiator through the thermostat, and the radiator is used for cooling the coolant. Therefore, the problem that, during the working process of the engine, the engine is overheated, the engine heat dissipation is poor, the internal accessories of the engine are overheated too fast, the engine oil heat dissipation is poor, the lubricating capacity is reduced, the parts are abraded, and faults are caused is solved, and the reliability and durability of the engine are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine, in particular to a control method and device of engine cooling system, vehicle and storage medium. BACKGROUND

[0002] The engine is the heart of the car, and whether the engine can operate normally depends largely on the engine cooling water temperature, oil pressure and temperature. The water temperature, oil temperature and oil pressure in the normal range are of great significance for the reliable operation of the engine, the full play of the efficiency, the extension of the service life of the engine and the reduction of the use consumption.

[0003] In the working process of the engine, the engine water temperature is too high, which will lead to poor heat dissipation of the engine, and then lead to the rapid heating of the internal accessories of the engine, the poor heat dissipation of the oil, the reduction of the lubricating ability, the wear of the parts, the failure and so on.

[0004] The engine cooling method proposed in the related art only controls the cooling fan or the electronic fan for heat dissipation according to the temperature of the engine, and the problem of poor heat dissipation of the engine due to the high engine water temperature still exists, which needs to be solved urgently. SUMMARY

[0005] Therefore, the present application aims to provide a control method and device of engine cooling system, vehicle and storage medium, which solves the problem that the engine is poor in heat dissipation due to the high engine water temperature in the working process of the engine, and then leads to the rapid heating of the internal accessories of the engine, the poor heat dissipation of the oil, the reduction of the lubricating ability, the wear of the parts, the failure and so on, ensures the reliability and durability of the engine, and improves the safety and drivability of the vehicle.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0007] A control method of engine cooling system, the engine cooling system comprising a thermostat connected with the engine and a radiator connected with the thermostat, comprising the following steps: judging whether the air conditioner compressor of the current vehicle is in the open state; if the air conditioner compressor is not in the open state, obtaining the current temperature of the engine coolant, and judging whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, controlling the thermostat, the condensing fan and the electronic fan to be in the closed state, otherwise, starting the condensing fan and the thermostat, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0008] Further, after the condenser fan and the thermostat are turned on, further comprising: determining whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; if the current temperature is greater than or equal to the second preset temperature, turning off the condenser fan and turning on the electronic fan, and simultaneously turning on the condenser fan and the electronic fan when the current temperature is greater than or equal to a third preset temperature.

[0009] Further, after determining whether the air conditioner compressor of the current vehicle is in the on state, further comprising: if the air conditioner compressor is in the on state, turning on the condenser fan to cool the condenser through the condenser fan, and obtaining a current temperature of the engine coolant; determining whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, maintaining the current state of the condenser fan and the electronic fan unchanged, otherwise, turning off the condenser fan and turning on the electronic fan to cool the condenser, and simultaneously turning on the thermostat so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0010] Further, after turning off the condenser fan and turning on the electronic fan to cool the condenser, further comprising: determining whether the current temperature is greater than or equal to the second preset temperature; if the current temperature is greater than or equal to the second preset temperature, turning on the condenser fan again.

[0011] Further, after turning on the condenser fan again, further comprising: determining whether the current temperature is greater than or equal to the third preset temperature; if the current temperature is greater than or equal to the third preset temperature, turning off the air conditioner compressor and maintaining the condenser fan and the electronic fan in the on state.

[0012] Further, the control method of the engine cooling system further comprises: after the condenser fan and the electronic fan are in the on state, determining a duration that the current temperature is greater than or equal to the third preset temperature; if the duration is greater than a preset duration, performing an alarm reminder.

[0013] Compared with the prior art, the control method of the engine cooling system has the following advantages: it solves the problem that the engine is overheated during operation, which leads to poor engine cooling, and further leads to rapid heating of internal accessories, poor engine oil cooling, reduced lubricating ability, part wear, and failure, ensuring the reliability and durability of the engine, and improving the safety and drivability of the vehicle.

[0014] The application judges whether the air conditioner compressor of the current vehicle is in an open state; if the air conditioner compressor is not in an open state, the current temperature of the engine coolant is obtained, and it is judged whether the current temperature is less than a first preset temperature; if the current temperature is less than the first preset temperature, the thermostat, the condensing fan and the electronic fan are all controlled to be in a closed state, otherwise, the condensing fan and the thermostat are turned on, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0015] Another purpose of the application is to provide a control device of an engine cooling system, which solves the problem that the engine cooling is poor due to the high engine water temperature during the operation of the engine, which further causes the internal accessory of the engine to heat up too fast, which causes poor engine oil cooling, reduces the lubricating ability, causes the wear of parts, and causes faults, ensures the reliability and durability of the engine, and improves the safe drivability of the vehicle.

[0016] To achieve the above purpose, the technical scheme of the application is as follows:

[0017] A control device of an engine cooling system, the engine cooling system comprising a thermostat connected with an engine and a radiator connected with the thermostat, wherein the device comprises: a first judgment module for judging whether the air conditioner compressor of the current vehicle is in an open state; an acquisition module for acquiring the current temperature of the engine coolant if the air conditioner compressor is not in an open state, and judging whether the current temperature is less than a first preset temperature; a control module for controlling the thermostat, the condensing fan and the electronic fan to be in a closed state if the current temperature is less than the first preset temperature, otherwise, turning on the condensing fan and the thermostat, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0018] Further, after turning on the condensing fan and the thermostat, the control module is further used for: judging whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; if the current temperature is greater than or equal to the second preset temperature, the condensing fan is turned off, and the electronic fan is turned on, and when the current temperature is greater than or equal to a third preset temperature, the condensing fan and the electronic fan are turned on at the same time.

[0019] Further, after judging whether the air conditioner compressor of the current vehicle is in the open state, the control module is further configured to: if the air conditioner compressor is in the open state, open the condenser fan to dissipate heat for the condenser through the condenser fan, and acquire a current temperature of the engine coolant; judge whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, maintain the current state of the condenser fan and the electronic fan unchanged, otherwise, close the condenser fan, open the electronic fan to cool the condenser, and open the thermostat so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0020] Further, after closing the condenser fan and opening the electronic fan to cool the condenser, the control module is further configured to: judge whether the current temperature is greater than or equal to the second preset temperature; if the current temperature is greater than or equal to the second preset temperature, open the condenser fan again.

[0021] Further, after opening the condenser fan again, the control module is further configured to: judge whether the current temperature is greater than or equal to the third preset temperature; if the current temperature is greater than or equal to the third preset temperature, close the air conditioner compressor and maintain the condenser fan and the electronic fan in the open state.

[0022] Further, the control device of the engine cooling system described above further comprises: a second judging module configured to judge a duration that the current temperature is greater than or equal to the third preset temperature after the condenser fan and the electronic fan are in the open state; and a reminding module configured to perform alarm reminding if the duration is greater than a preset duration.

[0023] The control device of the engine cooling system has the same advantages as the control method of the engine cooling system described above, and thus will not be described here.

[0024] Another object of the present application is to provide a vehicle, which solves the problem that the engine cooling is poor due to the high engine water temperature during the operation of the engine, which further causes the rapid temperature rise of the internal accessories of the engine, the poor cooling of the engine oil, the reduction of the lubricating capacity, the wear of the parts, and the failure, ensures the reliability and durability of the engine, and improves the safety and drivability of the vehicle.

[0025] To achieve the above object, the technical scheme of the present application is as follows:

[0026] A vehicle comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the control method of the engine heat dissipation system as described in the above embodiments.

[0027] The vehicle has the same advantages as the control method of the engine heat dissipation system described above, which will not be repeated here.

[0028] Another object of the present application is to provide a computer-readable storage medium.

[0029] To achieve the above object, the technical solution of the present application is as follows:

[0030] A computer-readable storage medium having a computer program stored thereon, the program being executable by a processor to implement the control method of the engine heat dissipation system as described in the above embodiments.

[0031] The computer-readable storage medium has the same advantages as the control method of the engine heat dissipation system described above, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which form a part of the present application, are used to provide a further understanding of the present application, and the illustrative embodiments thereof, and are not intended to limit the present application. In the drawings:

[0033] Figure 1 Flow chart of the control method of the engine heat dissipation system of the present application;

[0034] Figure 2 Connection diagram of the engine heat dissipation system of the present application;

[0035] Figure 3 Flow chart of the control method of the engine heat dissipation system of the present application when the air conditioner compressor is off;

[0036] Figure 4 Flow chart of the control method of the engine heat dissipation system of the present application when the air conditioner compressor is on;

[0037] Figure 5 Block diagram of the control device of the engine heat dissipation system of the present application;

[0038] Figure 6 Schematic diagram of the vehicle structure of the present application.

[0039] Explanation of reference signs: 10 - engine cooling system, 20 - control device of engine cooling system, 100 - first judging module, 200 - acquisition module, 300 - control module, 601 - memory, 602 - processor, 603 - communication interface. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0042] Figure 1 is a flow chart of the control method of the engine cooling system according to the embodiment of the present application.

[0043] In this embodiment, as shown in Figure 2 , the engine cooling system 10 comprises a water pump 1, an engine control unit ECU 2, a water temperature sensor 3, an electronic fan 4, a condenser fan 5, a condenser 6, an air conditioner compressor 7, a thermostat 9 connected to the engine 8, and a radiator 11 connected to the thermostat. Among them, the ECU 2 is connected to the water temperature sensor 3 for detecting the coolant temperature of the engine 8; the water temperature sensor 3 is installed at the engine outlet for detecting the coolant temperature of the engine 8; the condenser fan 5, the condenser 6, the radiator 11, and the electronic fan 4 are installed in turn at the front end of the vehicle; the condenser fan 5 and the electronic fan 4 are connected to the ECU 2 respectively, and the ECU 2 controls the start and stop of the condenser fan 5 and the electronic fan 4 according to the temperature value measured by the water temperature sensor 3; the air conditioner compressor 7 is connected to the ECU 2, and the ECU 2 controls the start and stop of the air conditioner compressor 7.

[0044] Among them, the coolant mainly has a cooling effect. When the engine is running, the coolant is driven to circulate by the engine water pump providing pressure, which will take away the heat of these parts, causing the coolant temperature to rise, and the radiator to cool down. After cooling, it participates in the circulation again.

[0045] Specifically, as shown in Figure 1 , the control method of the engine cooling system according to the embodiment of the present application comprises the following steps:

[0046] Step S101, judge whether the air conditioner compressor of the current vehicle is in an open state.

[0047] It can be understood that if the driver has the demand to open the air conditioner and has opened the air conditioner, it is determined that the air conditioner compressor of the current vehicle is in an open state; if the driver has no demand to open the air conditioner (i.e. the air conditioner is not opened), it is determined that the air conditioner compressor of the current vehicle is not in an open state.

[0048] Step S102: If the air conditioning compressor is not turned on, obtain the current temperature of the engine coolant and determine whether the current temperature is lower than the first preset temperature.

[0049] The first preset temperature can be a threshold set by the user, a threshold obtained through a limited number of experiments, or a threshold obtained through a limited number of computer simulations. Preferably, the first preset temperature is set to 75°C.

[0050] Specifically, such as Figure 3 As shown, when the vehicle is in motion, if the air conditioning compressor is not turned on, the current temperature of the engine coolant is detected by the water temperature sensor, and it is determined whether the current temperature of the engine coolant is less than 75°C.

[0051] Step S103: If the current temperature is lower than the first preset temperature, the thermostat, condenser fan and electric fan are all turned off; otherwise, the condenser fan and thermostat are turned on so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0052] Understandably, if the current temperature of the engine coolant is less than 75°C, the thermostat is closed, and the ECU controls the condenser fan and electric fan to shut down, so the radiator does not participate in cooling the coolant. When the current temperature of the engine coolant is greater than or equal to 75°C, the condenser fan and thermostat are turned on. At this time, the engine coolant enters the radiator through the thermostat and is cooled by the radiator.

[0053] Furthermore, in some embodiments, after turning on the condenser fan and the thermostat, the method further includes: determining whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than a first preset temperature; if the current temperature is greater than or equal to the second preset temperature, then turning off the condenser fan and turning on the electric fan, and when the current temperature is greater than or equal to a third preset temperature, simultaneously turning on the condenser fan and the electric fan.

[0054] The second preset temperature and the third preset temperature can be thresholds preset by the user, thresholds obtained through a limited number of experiments, or thresholds obtained through a limited number of computer simulations. Preferably, the second preset temperature is set to 100℃ and the third preset temperature is set to 115℃.

[0055] Specifically, if the current temperature of the engine coolant is greater than or equal to 100℃, the ECU controls the condensing fan to be closed and the electronic fan to be turned on, so as to increase the air supply and improve the heat dissipation capacity of the radiator, so as to ensure that the engine water temperature is below 115℃; if the current temperature of the engine coolant is greater than or equal to 115℃, the ECU controls the condensing fan to be turned on and the electronic fan to be turned on, so that the condensing fan and the electronic fan work simultaneously, so as to increase the air supply and improve the heat dissipation capacity of the radiator, so as to ensure that the engine water temperature is below 118℃.

[0056] Further, in some embodiments, after judging whether the air conditioner compressor of the current vehicle is in an open state, further comprising: if the air conditioner compressor is in an open state, turning on the condensing fan to cool the condenser and obtain the current temperature of the engine coolant; judging whether the current temperature is less than a first preset temperature; if the current temperature is less than the first preset temperature, maintaining the current state of the condensing fan and the electronic fan unchanged, otherwise, closing the condensing fan and turning on the electronic fan to cool the condenser, and simultaneously turning on the thermostat, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0057] Specifically, as shown in Figure 4 when the air conditioner compressor is in an open state during vehicle driving, the air conditioner compressor is turned on when the driver has an air conditioning demand, the ECU controls the condensing fan to be turned on to cool the condenser, and simultaneously obtains the current temperature of the engine coolant.

[0058] If the current temperature of the engine coolant is less than 75℃ and the thermostat is in a closed state, the ECU controls the electronic fan to be closed, and the radiator does not participate in the cooling of the coolant; when the current temperature of the engine coolant is greater than or equal to 75℃, the ECU controls the condensing fan to be closed and the electronic fan to be turned on to cool the condenser, at this time, the thermostat is turned on, the coolant enters the radiator, and the radiator cools the coolant.

[0059] Further, in some embodiments, after the condensing fan is closed and the electronic fan is turned on to cool the condenser, further comprising: judging whether the current temperature is greater than or equal to a second preset temperature; if the current temperature is greater than or equal to the second preset temperature, the condensing fan is turned on again.

[0060] It can be understood that if the current temperature of the engine coolant is greater than or equal to 100℃, the ECU controls the condensing fan to be turned on again, and simultaneously turns on the electronic fan, so as to increase the air supply and improve the heat dissipation capacity of the radiator, so as to ensure that the engine water temperature is below 115℃.

[0061] Further, in some embodiments, after the condenser fan is turned on again, further comprising: determining whether the current temperature is greater than or equal to a third preset temperature; if the current temperature is greater than or equal to the third preset temperature, turning off the air conditioner compressor, and maintaining the condenser fan and the electronic fan in the turned-on state.

[0062] It can be understood that, after the condenser fan is turned on again, if the current temperature of the engine coolant is greater than or equal to 115℃, at this time, the engine protection strategy is started, the ECU forcibly stops the air conditioner compressor, while maintaining the condenser fan and the electronic fan in the turned-on state, increasing the air supply, improving the heat dissipation capacity of the radiator, and ensuring that the engine water temperature is below 118℃.

[0063] Further, in some embodiments, the control method of the engine cooling system further comprises: after the condenser fan and the electronic fan are in the turned-on state, determining a duration that the current temperature is greater than or equal to the third preset temperature; if the duration is greater than a preset duration, an alarm is given.

[0064] The preset duration can be a threshold value preset by the user, a threshold value obtained through a limited number of experiments, or a threshold value obtained through a limited number of computer simulations, and is not limited here.

[0065] It should be understood that, after the condenser fan and the electronic fan are controlled to be turned on, the current temperature of the engine coolant is obtained, and if the duration that the current temperature is greater than or equal to 115℃ is greater than a preset duration, the ECU can remind the driver through an acoustic device or an optical device in the vehicle.

[0066] It should be noted that the above control method of the engine cooling system is only an example application, and each temperature interval can be adjusted appropriately according to the engine performance and the vehicle demand, including precise control of the engine water pump by the electronic water pump and precise control of the thermostat by the temperature control module. In order to reduce redundancy, details are not described here.

[0067] In summary, the beneficial effects of the embodiments of the present application are as follows:

[0068] (1) By unified control of the condenser fan and the electronic fan, energy consumption is reduced at low water temperature, and unified management of fan energy is achieved, avoiding the limitation that the condenser fan of a conventional vehicle only cools the condenser and the electronic fan only cools the radiator;

[0069] (2) The comprehensive utilization rate of the fan is improved, the heat dissipation capacity of the radiator is effectively improved, the torque limitation at high water temperature is avoided, and the driving performance and safety performance of the vehicle are improved;

[0070] (3) Through effective control of the engine coolant temperature, the heat dissipation capacity of the oil cooler is indirectly improved, the oil problem is effectively reduced, and the reliability and durability of the engine are improved.

[0071] According to the control method of the engine heat dissipation system provided by the embodiment of the present application, if the air conditioner compressor is in an unopened state, the current temperature of the engine coolant is obtained, and it is determined whether the current temperature is less than a first preset temperature. If the current temperature is less than the first preset temperature, the thermostat, the condensing fan and the electronic fan are all controlled to be in a closed state, otherwise, the condensing fan and the thermostat are opened, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator. Thus, the problem that the engine is overheated during operation, which leads to poor heat dissipation of the engine, and further leads to rapid temperature rise of the internal accessories of the engine, poor heat dissipation of the oil, reduced lubricating capacity, part wear and failure is solved, the reliability and durability of the engine are ensured, and the safety and drivability of the vehicle are improved.

[0072] Further, as shown in Figure 5 the embodiment of the present application also discloses a control device of an engine heat dissipation system 20, which comprises a first judgment module 100, an acquisition module 200 and a control module 300.

[0073] Specifically, as shown in Figure 5 the first judgment module 100 is used for judging whether the air conditioner compressor of the current vehicle is in an opened state, the acquisition module 200 is used for obtaining the current temperature of the engine coolant if the air conditioner compressor is in an unopened state, and determining whether the current temperature is less than a first preset temperature, and the control module 300 is used for controlling the thermostat, the condensing fan and the electronic fan to be in a closed state if the current temperature is less than the first preset temperature, otherwise, the condensing fan and the thermostat are opened, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0074] Further, in some embodiments, after the condensing fan and the thermostat are opened, the control module 300 is further used for: determining whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; if the current temperature is greater than or equal to the second preset temperature, the condensing fan is closed and the electronic fan is opened, and when the current temperature is greater than or equal to a third preset temperature, the condensing fan and the electronic fan are simultaneously opened.

[0075] Further, in some embodiments, after determining whether the air-conditioning compressor of the current vehicle is in an open state, the control module 300 is further configured to: if the air-conditioning compressor is in the open state, turn on the condenser fan to dissipate heat for the condenser through the condenser fan, and obtain a current temperature of the engine coolant; determine whether the current temperature is less than a first preset temperature; if the current temperature is less than the first preset temperature, maintain the current state of the condenser fan and the electronic fan unchanged, otherwise, turn off the condenser fan and turn on the electronic fan to cool the condenser, and simultaneously turn on the thermostat so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

[0076] Further, in some embodiments, after turning off the condenser fan and turning on the electronic fan to cool the condenser, the control module 300 is further configured to: determine whether the current temperature is greater than or equal to a second preset temperature; if the current temperature is greater than or equal to the second preset temperature, turn on the condenser fan again.

[0077] Further, in some embodiments, after turning on the condenser fan again, the control module 300 is further configured to: determine whether the current temperature is greater than or equal to a third preset temperature; if the current temperature is greater than or equal to the third preset temperature, turn off the air-conditioning compressor and maintain the condenser fan and the electronic fan in the open state.

[0078] Further, in some embodiments, the control device 20 of the engine cooling system further comprises: a second determination module configured to determine a duration for which the current temperature is greater than or equal to the third preset temperature after the condenser fan and the electronic fan are in the open state; and a reminding module configured to perform alarm reminding if the duration is greater than a preset duration.

[0079] It should be noted that the specific implementation of the control device of the engine cooling system according to the embodiments of the present application is similar to the specific implementation of the control method of the engine cooling system, and to reduce redundancy, details are not repeated here.

[0080] According to the control device of the engine cooling system, if the air-conditioning compressor is in the unopened state, the current temperature of the engine coolant is obtained, and it is determined whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, the thermostat, the condenser fan and the electronic fan are controlled to be in the closed state, otherwise, the condenser fan and the thermostat are turned on so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator. Thus, the problem that the engine is overheated during operation, which leads to poor engine cooling, and further leads to rapid heating of the internal accessories of the engine, poor engine oil cooling, reduced lubricating ability, part wear and failure is solved, the reliability and durability of the engine are ensured, and the safety and drivability of the vehicle are improved.

[0081] Further, the embodiment of the present application discloses a vehicle, Figure 6 The schematic diagram of the vehicle structure provided by the embodiment of the present application is shown.

[0082] The vehicle can comprise a memory 601, a processor 602 and a computer program stored in the memory 601 and executable on the processor 602.

[0083] The processor 602 implements the control method of the engine heat dissipation system provided in the above embodiment when executing the program.

[0084] Further, the vehicle further comprises:

[0085] A communication interface 603 for communication between the memory 601 and the processor 602.

[0086] The memory 601 is used to store the computer program executable on the processor 602.

[0087] The memory 601 can include a high-speed RAM memory, and can also include a non-volatile memory, such as at least one disk memory.

[0088] If the memory 601, the processor 602 and the communication interface 603 are independently implemented, the communication interface 603, the memory 601 and the processor 602 can be connected to each other through a bus and complete the communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 6 In the figure, only one thick line is used to represent, but it does not mean that there is only one bus or one type of bus.

[0089] Optionally, in specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can complete the communication between each other through an internal interface.

[0090] The processor 602 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to perform the operations of the embodiments of the application.

[0091] The embodiments of the application further disclose a computer readable storage medium, which has stored thereon a computer program, and the computer program is executed by a processor to implement the control method of the engine heat dissipation system.

[0092] The above merely provides the preferred embodiments of the application, and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall fall within the protection scope of the application.

Claims

1. A control method of an engine heat dissipation system, characterized by, The engine cooling system comprises a thermostat connected to the engine and a radiator connected to the thermostat, and the method comprises the following steps: determining whether the air conditioning compressor of the current vehicle is in an open state; if the air conditioning compressor is not in an open state, obtaining the current temperature of the engine coolant and determining whether the current temperature is less than a first preset temperature; if the current temperature is less than the first preset temperature, controlling the thermostat, the condenser fan and the electronic fan to be in a closed state, otherwise, turning on the condenser fan and the thermostat, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator; after determining whether the air conditioning compressor of the current vehicle is in the open state, further comprising: if the air conditioning compressor is in an open state, turning on the condenser fan to cool the condenser through the condenser fan, and obtaining the current temperature of the engine coolant; determining whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, maintaining the current state of the condenser fan and the electronic fan unchanged, otherwise, turning off the condenser fan and turning on the electronic fan to cool the condenser, and turning on the thermostat at the same time, so that the engine coolant enters the radiator through the thermostat to cool the coolant through the radiator.

2. The method of claim 1, wherein, after turning on the condenser fan and the thermostat, further comprising: determining whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; if the current temperature is greater than or equal to the second preset temperature, turning off the condenser fan and turning on the electronic fan, and turning on the condenser fan and the electronic fan at the same time when the current temperature is greater than or equal to a third preset temperature.

3. The method of claim 2, wherein, after turning off the condenser fan and turning on the electronic fan to cool the condenser, further comprising: determining whether the current temperature is greater than or equal to the second preset temperature; if the current temperature is greater than or equal to the second preset temperature, turning on the condenser fan again.

4. The method of claim 3, wherein, after turning on the condenser fan again, further comprising: determining whether the current temperature is greater than or equal to the third preset temperature; if the current temperature is greater than or equal to the third preset temperature, turning off the air conditioning compressor and maintaining the condenser fan and the electronic fan in an open state.

5. The method according to claim 2 or 4, characterized in that, further comprising: after the condenser fan and the electronic fan are in the open state, determining the duration that the current temperature is greater than or equal to the third preset temperature; if the duration is greater than a preset duration, an alarm is given.

6. A control device for an engine cooling system, characterized by comprising: The engine cooling system comprises a thermostat connected to the engine and a radiator connected to the thermostat, and the device comprises: a determination module for determining whether the air conditioning compressor of the current vehicle is in an open state; an acquisition module for obtaining the current temperature of the engine coolant if the air conditioning compressor is not in an open state, and determining whether the current temperature is less than a first preset temperature; The control module is configured to control the thermostat, the condenser fan and the electronic fan to be in a closed state if the current temperature is less than the first preset temperature, and otherwise, to start the condenser fan and the thermostat, so that the engine coolant enters the radiator via the thermostat to cool the coolant by the radiator. The control module is further configured to, after judging whether the air conditioner compressor of the current vehicle is in the start state, further comprising: if the air conditioner compressor is in the start state, starting the condenser fan to cool the condenser by the condenser fan and obtaining the current temperature of the engine coolant; judging whether the current temperature is less than the first preset temperature; if the current temperature is less than the first preset temperature, maintaining the current state of the condenser fan and the electronic fan unchanged, and otherwise, closing the condenser fan and starting the electronic fan to cool the condenser, and starting the thermostat so that the engine coolant enters the radiator via the thermostat to cool the coolant by the radiator.

7. The apparatus of claim 6, wherein, After starting the condenser fan and the thermostat, the control module is further configured to: judging whether the current temperature is greater than or equal to a second preset temperature, wherein the second preset temperature is greater than the first preset temperature; if the current temperature is greater than or equal to the second preset temperature, closing the condenser fan and starting the electronic fan, and starting the condenser fan and the electronic fan simultaneously when the current temperature is greater than or equal to a third preset temperature.

8. A vehicle characterized by comprising: comprising a memory, a processor; wherein the processor runs a program corresponding to executable program code stored in the memory by reading the executable program code, to implement the control method of the engine cooling system according to any one of claims 1-5.

9. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 8. The program is executed by the processor to implement the control method of the engine cooling system according to any one of claims 1-5.

Images