Engine cooling system control method and device, vehicle and storage medium

Abstract

The invention discloses an engine cooling system control method and device, a vehicle and a storage medium. The engine cooling system comprises an electric control thermostat, an electric control water pump and an electric control fan, and the control method of the engine cooling system comprises the steps that the first water temperature in front of the electric control thermostat is obtained, and whether the electric control thermostat is started or not is judged according to the first water temperature; after the electric control thermostat is started, second water temperature in front of the electric control thermostat is obtained, and whether the opening degree of the electric control thermostat reaches the opening degree limiting value or not is judged according to the second water temperature; after the opening degree of the electric control thermostat reaches the opening degree limit value, the third water temperature in front of the electric control thermostat is obtained, and whether the electric control water pump is started or not is judged according to the third water temperature; and after the electric control water pump is started, fourth water temperature in front of the electric control thermostat is obtained, and whether the electric control fan is started or not is judged according to the fourth water temperature. The electric control thermostat, the electric control water pump and the electric control fan are sequentially started from front to back, accessory power consumption is saved to the maximum extent, economical efficiency is improved, and normal operation of the engine is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of engine technology, and in particular to an engine cooling system control method, device, vehicle and storage medium. Background Art

[0002] The primary task of the engine cooling system is to ensure that the engine operates at the optimal water temperature. To ensure reliable engine operation under all operating conditions, the engine cooling system is designed based on calibrated operating conditions (such as rated speed and rated load). This results in excessive cooling capacity in most operating conditions, mismatching the engine's required heat dissipation. Research shows that conventional engines only have sufficient heat dissipation capacity 3%-5% of the time; the remaining time is in excess, resulting in wasted cooling system power consumption. Summary of the Invention

[0003] The present invention provides an engine cooling system control method, device, vehicle and storage medium to solve the problem that the existing gas engine cooling system has excess cooling capacity in most working conditions, resulting in wasteful power consumption of the cooling system.

[0004] According to one aspect of the present invention, a method for controlling an engine cooling system is provided. The engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan. The method for controlling the engine cooling system includes:

[0005] Obtaining a first water temperature before the electronically controlled thermostat, and determining whether to open the electronically controlled thermostat based on the first water temperature;

[0006] After the electronically controlled thermostat is turned on, a second water temperature in front of the electronically controlled thermostat is obtained, and whether the opening of the electronically controlled thermostat reaches an opening limit is determined based on the second water temperature;

[0007] After the opening of the electronically controlled thermostat reaches the opening limit, a third water temperature before the electronically controlled thermostat is obtained, and whether to start the electronically controlled water pump is determined according to the third water temperature;

[0008] After the electronically controlled water pump is turned on, a fourth water temperature before the electronically controlled thermostat is obtained, and whether to turn on the electronically controlled fan is determined according to the fourth water temperature.

[0009] Optionally, determining whether to open the electronically controlled thermostat according to the first water temperature includes:

[0010] If the first water temperature is greater than the first water temperature threshold, the electronically controlled thermostat is turned on;

[0011] If the first water temperature is not greater than the first water temperature threshold, the water temperature before the electronically controlled thermostat is detected again.

[0012] Optionally, determining whether the opening of the electronically controlled thermostat reaches an opening limit according to the second water temperature includes:

[0013] If the second water temperature is greater than the second water temperature threshold, the opening of the electronically controlled thermostat is controlled to reach the opening limit;

[0014] If the second water temperature is not greater than the second water temperature threshold, determining whether the second water temperature is greater than the first water temperature threshold;

[0015] The first water temperature threshold is lower than the second water temperature threshold.

[0016] Optionally, determining whether to start the electronically controlled water pump according to the third water temperature includes:

[0017] If the third water temperature is greater than the third water temperature threshold, the electronically controlled water pump is turned on;

[0018] If the third water temperature is not greater than the third water temperature threshold, determining whether the third water temperature is greater than the second water temperature threshold;

[0019] The second water temperature threshold is lower than the third water temperature threshold.

[0020] Optionally, determining whether to turn on the electronically controlled fan according to the fourth water temperature includes:

[0021] If the fourth water temperature is greater than the fourth water temperature threshold, turning on the electronically controlled fan;

[0022] If the fourth water temperature is not greater than the fourth water temperature threshold, determining whether the fourth water temperature is greater than the third water temperature threshold;

[0023] The third water temperature threshold is lower than the fourth water temperature threshold.

[0024] Optionally, the engine cooling system control method further includes:

[0025] Obtain the gas temperature, knock advance angle and EGR outlet temperature, and decide whether to start the electronically controlled water pump based on the gas temperature, knock advance angle and EGR outlet temperature.

[0026] Optionally, the electronically controlled water pump is activated based on the gas temperature, knock advance angle, and EGR outlet temperature, including:

[0027] If at least one of the gas temperature, knock advance angle, and EGR outlet temperature exceeds a set threshold, the electronically controlled water pump is turned on.

[0028] According to another aspect of the present invention, an engine cooling system control device is provided. The engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan. The engine cooling system control device includes:

[0029] The electronically controlled thermostat opening module is used to obtain a first water temperature before the electronically controlled thermostat and determine whether to open the electronically controlled thermostat according to the first water temperature;

[0030] an opening determination module, configured to obtain a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is opened, and determine whether the opening of the electronically controlled thermostat reaches an opening limit value according to the second water temperature;

[0031] an electronically controlled water pump start module, configured to obtain a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat reaches an opening limit, and determine whether to start the electronically controlled water pump based on the third water temperature;

[0032] The electronically controlled fan starting module is used to obtain the fourth water temperature before the electronically controlled thermostat after the electronically controlled water pump is started, and determine whether to start the electronically controlled fan according to the fourth water temperature.

[0033] According to another aspect of the present invention, a vehicle is provided, the vehicle including an engine cooling system, the engine cooling system including an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan;

[0034] The vehicle also includes:

[0035] at least one processor; and,

[0036] a memory communicatively connected to at least one processor; wherein,

[0037] The memory stores a computer program that can be executed by at least one processor. The computer program is executed by the at least one processor so that the at least one processor can execute the engine cooling system control method according to any embodiment of the present invention.

[0038] According to another aspect of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions, which are used to enable a processor to implement the engine cooling system control method according to any embodiment of the present invention when executed.

[0039] According to a technical solution of an embodiment of the present invention, an engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan. A method for controlling the engine cooling system includes: obtaining a first water temperature before the electronically controlled thermostat and determining whether to activate the electronically controlled thermostat based on the first water temperature; obtaining a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is activated and determining whether the opening of the electronically controlled thermostat has reached an opening limit based on the second water temperature; obtaining a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat has reached an opening limit and determining whether to activate the electronically controlled water pump based on the third water temperature; and obtaining a fourth water temperature before the electronically controlled thermostat after the electronically controlled water pump is activated and determining whether to activate the electronically controlled fan based on the fourth water temperature. The present invention sequentially activates the electronically controlled thermostat, the electronically controlled water pump, and the electronically controlled fan, thereby minimizing power consumption of accessories and improving economic efficiency. Furthermore, the electronically controlled water pump can be independently controlled based on parameters that affect the reliability or performance of the gas engine, ensuring normal engine operation.

[0040] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 is a flow chart of a method for controlling an engine cooling system according to an embodiment of the present invention;

[0043] Figure 2 is a schematic structural diagram of an engine cooling system provided according to an embodiment of the present invention;

[0044] Figure 3 is a flow chart of a method for controlling an engine cooling system according to an embodiment of the present invention;

[0045] Figure 4 is a structural schematic diagram of an engine cooling system control device provided according to an embodiment of the present invention;

[0046] Figure 5 It is a structural schematic diagram of a vehicle for implementing the engine cooling system control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0049] Figure 1 A flowchart of an engine cooling system control method is provided for an embodiment of the present invention. This embodiment is applicable to the control of a gas engine cooling system. The engine cooling system control method can be executed by an engine cooling system control device, which can be implemented in the form of hardware and / or software. The engine cooling system control device can be configured in a gas engine vehicle. Figure 2 As shown, the engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump and an electronically controlled fan. The engine cooling system also includes a cylinder head cooling water jacket, a water outlet pipe, a carburetor, a radiator, an EGR system and a water temperature sensor. A gas engine-specific engine needs to be equipped with a carburetor to vaporize the fuel entering the combustion chamber. The carburetor circulating water circuit is set at the water outlet pipe to take water. The circulating water reaches the electronically controlled water pump before it is used. The application of the EGR system on the gas engine can reduce the combustion temperature in the cylinder and reduce knock.

[0050] In this embodiment, the switches of the electronically controlled thermostat, electronically controlled water pump, and electronically controlled fan are all controlled by the water temperature. Figure 1 As shown, the engine cooling system control method includes:

[0051] S110: Acquire a first water temperature before the electronically controlled thermostat, and determine whether to open the electronically controlled thermostat based on the first water temperature.

[0052] The electronically controlled thermostat (ECT) is an intelligent temperature control device that dynamically adjusts the engine coolant circulation path through the electronic control unit (ECU). Compared with traditional mechanical thermostats, it has higher accuracy and response speed.

[0053] The first water temperature before the electronically controlled thermostat may be acquired in real time by a temperature sensor before the electronically controlled thermostat, or may be acquired by detecting the water temperature in other ways, which is not limited in this embodiment.

[0054] Specifically, if the first water temperature is greater than the first water temperature threshold, the electronically controlled thermostat is turned on. Figure 2 As shown, water is taken from the outlet pipe, and the circulating water passes through the electronically controlled thermostat and radiator to the front of the electronically controlled water pump.

[0055] If the first water temperature is not greater than the first water temperature threshold, that is, the first water temperature is less than or equal to the first water temperature threshold, the electronically controlled thermostat, the electronically controlled water pump, and the electronically controlled fan are all turned off, and the water temperature before the electronically controlled thermostat is detected again.

[0056] The first water temperature threshold can be selected and set according to the opening requirement of the electronically controlled thermostat. This embodiment does not impose any limitation on the specific value of the first water temperature threshold.

[0057] S120: After the electronically controlled thermostat is turned on, a second water temperature in front of the electronically controlled thermostat is obtained, and whether the opening of the electronically controlled thermostat reaches an opening limit is determined based on the second water temperature.

[0058] The second water temperature is collected in real time by a temperature sensor in front of the electronically controlled thermostat after the electronically controlled thermostat is turned on. The second water temperature may also be obtained by detecting the water temperature in other ways, and this embodiment does not impose any limitation on this.

[0059] Specifically, if the second water temperature is greater than the second water temperature threshold, the opening of the electronically controlled thermostat is controlled to reach the opening limit, that is, the opening of the electronically controlled thermostat reaches the maximum opening, and the opening limit is the maximum opening of the electronically controlled thermostat. Figure 2 As shown, water is taken from the outlet pipe, and the circulating water passes through the electronically controlled thermostat, radiator and reaches the front of the electronically controlled water pump.

[0060] If the second water temperature is not greater than the second water temperature threshold, that is, the second water temperature is less than or equal to the second water temperature threshold, based on the second water temperature, it can be known that the electronically controlled thermostat does not need to be opened to the maximum opening at this time, and then the second water temperature is further determined to be greater than the first water temperature threshold; wherein, the first water temperature threshold is less than the second water temperature threshold.

[0061] The second water temperature threshold can be selected and set according to the opening requirement of the electronically controlled thermostat. This embodiment does not impose any limitation on the specific value of the second water temperature threshold.

[0062] S130 . After the opening of the electronically controlled thermostat reaches the opening limit, obtain a third water temperature before the electronically controlled thermostat, and determine whether to start the electronically controlled water pump based on the third water temperature.

[0063] An electronically controlled water pump is an intelligent pump device that precisely regulates coolant flow through an electronic control unit (ECU). It is widely used in the automotive, industrial, and new energy sectors.

[0064] The third water temperature is obtained by real-time acquisition by a temperature sensor in front of the electronically controlled thermostat after the opening of the electronically controlled thermostat reaches the opening limit. The third water temperature may also be obtained by detecting the water temperature in other ways, and this embodiment does not impose any limitation on this.

[0065] Specifically, if the third water temperature is greater than the third water temperature threshold, the electronically controlled water pump is turned on. Figure 2 As shown, water is taken from the outlet pipe, and the circulating water passes through the electronically controlled thermostat and radiator to the front of the electronically controlled water pump.

[0066] If the third water temperature is not greater than the third water temperature threshold, that is, the third water temperature is less than or equal to the third water temperature threshold, the water temperature can continue to maintain the electronic thermostat open, and then continue to determine whether the third water temperature is greater than the second water temperature threshold; wherein, the second water temperature threshold is less than the third water temperature threshold.

[0067] The third water temperature threshold can be selected and set according to the start-up requirement of the electronically controlled water pump. This embodiment does not impose any restriction on the specific value of the third water temperature threshold.

[0068] S140: After the electronically controlled water pump is turned on, a fourth water temperature before the electronically controlled thermostat is obtained, and whether to turn on the electronically controlled fan is determined based on the fourth water temperature.

[0069] An electronically controlled fan is an intelligent cooling device that uses an electronic control system to adjust the speed and start and stop the fan. It is widely used in automobiles, industrial equipment, and consumer electronics.

[0070] The fourth water temperature is collected in real time by a temperature sensor in front of the electronically controlled thermostat after the electronically controlled water pump is turned on. The fourth water temperature may also be obtained by detecting the water temperature in other ways, and this embodiment does not impose any limitation on this.

[0071] Specifically, if the fourth water temperature is greater than the fourth water temperature threshold, the electric control fan is turned on. Figure 2 As shown, water is taken from the water outlet pipe, and the circulating water passes through the electronically controlled thermostat and radiator to the electronically controlled water pump. At this time, the electronically controlled fan is turned on to cool the water passing through the radiator.

[0072] If the fourth water temperature is not greater than the fourth water temperature threshold, that is, the fourth water temperature is less than or equal to the fourth water temperature threshold, the water temperature can continue to be maintained to turn on the electronically controlled water pump, and then continue to determine whether the fourth water temperature is greater than the third water temperature threshold; wherein, the third water temperature threshold is less than the fourth water temperature threshold.

[0073] The fourth water temperature threshold can be selected and set according to the requirement for starting the electronically controlled fan. This embodiment does not impose any restriction on the specific value of the fourth water temperature threshold.

[0074] On the basis of the above embodiment, while controlling the water temperature, the electronically controlled water pump is individually controlled for relevant parameters that affect the reliability or performance of the gas engine as a whole, specifically: obtaining the gas temperature, knock advance angle and EGR outlet temperature, and whether to turn on the electronically controlled water pump based on the gas temperature, knock advance angle and EGR outlet temperature.

[0075] Gas temperature refers to the thermodynamic state parameter of gas during combustion or transmission. Gas temperature measurement methods can be divided into two categories: contact and non-contact, depending on the application scenario and technical principles. For example, it can be measured by thermocouple method or optical spectroscopy method. This embodiment does not impose any restrictions on this.

[0076] Knock Advance Angle refers to the ignition advance angle offset dynamically adjusted by the engine control unit (ECU) to suppress knock, and its value changes in real time with operating conditions.

[0077] EGR Outlet Gas Temperature (EGR Outlet Gas Temperature) refers to the exhaust gas temperature in the exhaust gas recirculation (EGR) system, which re-enters the engine intake system after being processed by the cooler or control valve. It is usually controlled at 150°C to 400°C (depending on the engine operating conditions and cooling efficiency).

[0078] Specifically, if at least one of the gas temperature, knock advance angle, and EGR outlet temperature exceeds the set threshold, the electronically controlled water pump is turned on. After the electronically controlled water pump is turned on, the water temperature in front of the electronically controlled thermostat is detected again, and whether to turn on the electronically controlled thermostat or the electronically controlled fan is continued to be determined based on the water temperature.

[0079] When at least one of the gas temperature, knock advance angle, and EGR outlet temperature exceeds a set threshold, the setting can be selected based on the impact of the corresponding gas temperature, knock advance angle, and EGR outlet temperature on the water temperature. This embodiment does not impose any special restrictions on the set threshold.

[0080] The technical solution of an embodiment of the present invention is that the engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan. The engine cooling system control method includes: obtaining a first water temperature before the electronically controlled thermostat, and determining whether to open the electronically controlled thermostat based on the first water temperature; obtaining a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is opened, and determining whether the opening of the electronically controlled thermostat has reached an opening limit based on the second water temperature; obtaining a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat has reached an opening limit, and determining whether to open the electronically controlled water pump based on the third water temperature; obtaining a fourth water temperature before the electronically controlled thermostat after the electronically controlled water pump is turned on, and determining whether to open the electronically controlled fan based on the fourth water temperature. The present invention solves the problem of excess cooling capacity in most operating conditions of existing gas engine cooling systems, resulting in wasted power consumption of the cooling system. The electronically controlled thermostat, electronically controlled water pump, and electronically controlled fan are activated in sequence in this order, thereby maximizing power consumption savings for accessories, improving economy, and ensuring normal engine operation.

[0081] Based on the same inventive concept, Figure 3 This is a flow chart of an engine cooling system control method provided by an embodiment of the present invention. Based on the above embodiment, this embodiment provides an optional implementation method by sequentially opening the thermostat, water pump, and fan. Figure 3 As shown, the engine cooling system control method includes:

[0082] S210: Obtain a first water temperature before the electronically controlled thermostat.

[0083] S211. Determine whether the first water temperature is greater than a first water temperature threshold. If so, execute step S212; if not, execute step S210.

[0084] S212: Turn on the electronically controlled thermostat.

[0085] S213: Obtain a second water temperature before the electronically controlled thermostat.

[0086] S214: Determine whether the second water temperature is greater than the second water temperature threshold; if so, execute step S215; if not, execute step S211.

[0087] S215: Control the opening of the electronically controlled thermostat to reach the opening limit.

[0088] S216: Obtain the third water temperature before the electronically controlled thermostat.

[0089] S217: Determine whether the third water temperature is greater than the third water temperature threshold; if so, execute step S218; if not, execute step S214.

[0090] S218. Turn on the electronically controlled water pump.

[0091] S219: Obtain the fourth water temperature before the electronically controlled thermostat.

[0092] S220: Determine whether the fourth water temperature is greater than the fourth water temperature threshold; if so, execute step S221; if not, execute step S217.

[0093] S221. Turn on the electronically controlled fan.

[0094] The technical solution of the embodiment of the present invention checks whether the electronically controlled thermostat opens at a certain water temperature as the water temperature rises. If the water temperature continues to rise, the electronically controlled water pump is activated. If the water temperature rises again, the electronically controlled fan is activated. Based on the power consumption of accessories, the thermostat, water pump, and fan are activated sequentially, minimizing accessory power consumption and improving economic efficiency. Furthermore, the gas temperature, knock advance angle, and EGR outlet temperature are monitored to determine whether the electronically controlled water pump activates after the gas temperature drops to a certain limit. The electronically controlled water pump is independently controlled based on parameters that affect the reliability or performance of the gas engine, ensuring normal engine operation.

[0095] Based on the same inventive concept, Figure 4 This is a schematic diagram of the structure of an engine cooling system control device provided by an embodiment of the present invention. Figure 4 As shown, the engine cooling system control device includes:

[0096] The electronically controlled thermostat opening module 310 is configured to obtain a first water temperature before the electronically controlled thermostat and determine whether to open the electronically controlled thermostat according to the first water temperature;

[0097] an opening determination module 320 for obtaining a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is opened, and determining whether the opening of the electronically controlled thermostat reaches an opening limit value based on the second water temperature;

[0098] The electronically controlled water pump starting module 330 is configured to obtain a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat reaches an opening limit, and determine whether to start the electronically controlled water pump based on the third water temperature;

[0099] The electronically controlled fan starting module 340 is configured to obtain a fourth water temperature before the electronically controlled thermostat after the electronically controlled water pump is started, and determine whether to start the electronically controlled fan according to the fourth water temperature.

[0100] Optionally, determining whether to open the electronically controlled thermostat according to the first water temperature is specifically used for:

[0101] If the first water temperature is greater than the first water temperature threshold, the electronically controlled thermostat is turned on;

[0102] If the first water temperature is not greater than the first water temperature threshold, the water temperature before the electronically controlled thermostat is detected again.

[0103] Optionally, judging whether the opening of the electronically controlled thermostat reaches the opening limit according to the second water temperature is specifically used for:

[0104] If the second water temperature is greater than the second water temperature threshold, the opening of the electronically controlled thermostat is controlled to reach the opening limit;

[0105] If the second water temperature is not greater than the second water temperature threshold, determining whether the second water temperature is greater than the first water temperature threshold;

[0106] The first water temperature threshold is lower than the second water temperature threshold.

[0107] Optionally, determining whether to start the electronically controlled water pump according to the third water temperature is specifically used for:

[0108] If the third water temperature is greater than the third water temperature threshold, the electronically controlled water pump is turned on;

[0109] If the third water temperature is not greater than the third water temperature threshold, determining whether the third water temperature is greater than the second water temperature threshold;

[0110] The second water temperature threshold is lower than the third water temperature threshold.

[0111] Optionally, determining whether to turn on the electronically controlled fan according to the fourth water temperature is specifically used for:

[0112] If the fourth water temperature is greater than the fourth water temperature threshold, turning on the electronically controlled fan;

[0113] If the fourth water temperature is not greater than the fourth water temperature threshold, determining whether the fourth water temperature is greater than the third water temperature threshold;

[0114] The third water temperature threshold is lower than the fourth water temperature threshold.

[0115] Optionally, the engine cooling system control device further includes:

[0116] The parameter judgment module is used to obtain the gas temperature, knock advance angle and EGR outlet temperature, and to determine whether to start the electronically controlled water pump based on the gas temperature, knock advance angle and EGR outlet temperature.

[0117] Optionally, the electronically controlled water pump is activated based on the gas temperature, knock advance angle, and EGR outlet temperature. This is specifically used for:

[0118] If at least one of the gas temperature, knock advance angle, and EGR outlet temperature exceeds a set threshold, the electronically controlled water pump is turned on.

[0119] The engine cooling system control device provided in the embodiment of the present invention can execute the engine cooling system control method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the engine cooling system control method.

[0120] Based on the same inventive concept, Figure 5 FIG. 4 is a schematic diagram showing the structure of a vehicle 410 that can be used to implement an embodiment of the present invention. The vehicle includes an engine cooling system, which includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan. Figure 5 As shown, the vehicle 410 includes at least one processor 411 and a memory, such as a read-only memory (ROM 412) and a random access memory (RAM 413), which are communicatively connected to the at least one processor 411. The memory stores a computer program that can be executed by the at least one processor, and the processor 411 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM 412) or the computer program loaded from the storage unit 418 to the random access memory (RAM 413). Various programs and data required for the operation of the vehicle 410 can also be stored in the RAM 413. The processor 411, ROM 412, and RAM 413 are connected to each other via a bus 414. An I / O (input / output) interface 415 is also connected to the bus 414.

[0121] Various components in vehicle 410 are connected to I / O interface 415, including an input unit 416, such as a keyboard, mouse, etc.; an output unit 417, such as various types of displays, speakers, etc.; a storage unit 418, such as a magnetic disk, optical disk, etc.; and a communication unit 419, such as a network card, modem, wireless communication transceiver, etc. Communication unit 419 allows vehicle 410 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0122] Processor 411 can be various general-purpose and / or specialized processing components with processing and computing capabilities. Some examples of processor 411 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. Processor 411 executes the various methods and processes described above, such as the engine cooling system control method.

[0123] In some embodiments, the engine cooling system control method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 418. In some embodiments, part or all of the computer program may be loaded and / or installed on vehicle 410 via ROM 412 and / or communication unit 419. When the computer program is loaded into RAM 413 and executed by processor 411, one or more steps of the engine cooling system control method described above may be performed. Alternatively, in other embodiments, processor 411 may be configured to execute the engine cooling system control method in any other suitable manner (e.g., via firmware).

[0124] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0125] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0126] In the context of the present invention, computer-readable storage media can be tangible media that can contain or store a computer program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Computer-readable storage media can include but are not limited to electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, computer-readable storage media can be machine-readable signal media. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0127] To provide interaction with a user, the systems and techniques described herein can be implemented in a vehicle having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the vehicle. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0128] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0129] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0130] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0131] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A method for controlling an engine cooling system, wherein the engine cooling system comprises an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan, characterized in that: include: obtaining a first water temperature before the electronically controlled thermostat, and determining whether to open the electronically controlled thermostat according to the first water temperature; obtaining a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is turned on, and determining whether the opening of the electronically controlled thermostat reaches an opening limit value according to the second water temperature; acquiring a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat reaches the opening limit, and determining whether to start the electronically controlled water pump according to the third water temperature; After the electronically controlled water pump is turned on, a fourth water temperature before the electronically controlled thermostat is obtained, and whether to turn on the electronically controlled fan is determined according to the fourth water temperature.

2. The engine cooling system control method according to claim 1, characterized in that: Determining whether to open the electronically controlled thermostat according to the first water temperature includes: If the first water temperature is greater than a first water temperature threshold, turning on the electronically controlled thermostat; If the first water temperature is not greater than the first water temperature threshold, the water temperature before the electronically controlled thermostat is detected again.

3. The engine cooling system control method according to claim 1, characterized in that: Determining whether the opening of the electronically controlled thermostat reaches an opening limit according to the second water temperature includes: If the second water temperature is greater than a second water temperature threshold, controlling the opening of the electronically controlled thermostat to reach an opening limit; If the second water temperature is not greater than the second water temperature threshold, determining whether the second water temperature is greater than the first water temperature threshold; The first water temperature threshold is lower than the second water temperature threshold.

4. The engine cooling system control method according to claim 1, characterized in that: Determining whether to start the electronically controlled water pump according to the third water temperature includes: If the third water temperature is greater than a third water temperature threshold, turning on the electronically controlled water pump; If the third water temperature is not greater than the third water temperature threshold, determining whether the third water temperature is greater than the second water temperature threshold; The second water temperature threshold is lower than the third water temperature threshold.

5. The engine cooling system control method according to claim 1, characterized in that: Determining whether to turn on the electronically controlled fan according to the fourth water temperature includes: If the fourth water temperature is greater than a fourth water temperature threshold, turning on the electronically controlled fan; If the fourth water temperature is not greater than the fourth water temperature threshold, determining whether the fourth water temperature is greater than the third water temperature threshold; The third water temperature threshold is lower than the fourth water temperature threshold.

6. The engine cooling system control method according to claim 1, characterized in that: The engine cooling system control method further includes: The gas temperature, the knock advance angle and the EGR outlet temperature are obtained, and the electronically controlled water pump is turned on or off according to the gas temperature, the knock advance angle and the EGR outlet temperature.

7. The engine cooling system control method according to claim 6, characterized in that: Whether to start the electronically controlled water pump according to the gas temperature, the knock advance angle, and the EGR outlet temperature includes: If at least one parameter among the gas temperature, the knock advance angle, and the EGR outlet temperature exceeds a set threshold, the electronically controlled water pump is turned on.

8. An engine cooling system control device, wherein the engine cooling system includes an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan, characterized in that: include: an electronically controlled thermostat opening module, configured to obtain a first water temperature before the electronically controlled thermostat and determine whether to open the electronically controlled thermostat according to the first water temperature; an opening determination module, configured to obtain a second water temperature before the electronically controlled thermostat after the electronically controlled thermostat is turned on, and determine whether the opening of the electronically controlled thermostat reaches an opening limit value based on the second water temperature; an electronically controlled water pump starting module, configured to obtain a third water temperature before the electronically controlled thermostat after the opening of the electronically controlled thermostat reaches the opening limit, and determine whether to start the electronically controlled water pump according to the third water temperature; The electronically controlled fan starting module is used to obtain a fourth water temperature before the electronically controlled thermostat after the electronically controlled water pump is started, and determine whether to start the electronically controlled fan according to the fourth water temperature.

9. A vehicle, characterized in that: The vehicle includes an engine cooling system, the engine cooling system including an electronically controlled thermostat, an electronically controlled water pump, and an electronically controlled fan; The vehicle further comprises: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor to enable the at least one processor to perform the engine cooling system control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the engine cooling system control method according to any one of claims 1 to 7 when executed.

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