Control method and device for preventing vehicle throttle valve from freezing and vehicle

Abstract

The invention relates to the technical field of engine control, in particular to a control method and device for preventing a throttle valve of a vehicle from freezing, the vehicle and a storage medium, and the method comprises the steps that the actual exhaust temperature of the engine is collected, and the current temperature of the throttle valve of the engine is collected; whether the throttle valve meets a preset icing condition or not is judged according to the actual exhaust temperature and the current temperature; and if the throttle valve meets the preset freezing condition, the target opening degree of a flow control valve of a condensing device of the engine is generated according to the actual exhaust temperature and the current temperature, and the flow control valve is controlled to be opened to the target opening degree so as to condense waste gas of the engine. Therefore, the problems that in the related technology, due to the fact that the throttle valve is always heated to prevent the throttle valve from being frozen, energy is wasted, engine efficiency is reduced, and the driving performance of the vehicle is greatly affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of engine control, and in particular to a control method for preventing a vehicle throttle from freezing. Background Art

[0002] The engines are equipped with EGR (Exhaust Gas Recirculation) system and PCV (Positive Crankcase Ventilation) system. Both systems will lead the burned exhaust gas to the intake duct near the throttle valve. The exhaust gas introduced into the intake duct through the EGR system or the PCV system has a very high temperature. When the high-temperature exhaust gas reaches the vicinity of the throttle valve where the temperature is lower, the gaseous moisture carried in the exhaust gas will condense into liquid water when it encounters cold.

[0003] In the extremely cold conditions of winter in some areas, the temperature of the air entering the intake duct is very low, which causes the driver to release the accelerator pedal while driving. The low-temperature air only opens a small gap in the throttle, making the flow rate very fast. Under the dual effects of the low temperature and high flow rate of the cold air, the condensed water is likely to freeze instantly, causing the throttle to freeze, thus affecting the driving performance of the vehicle.

[0004] In the related art, a common method to prevent the throttle from freezing is to heat the throttle. However, according to the actual use of the throttle, it is not necessary to heat the throttle all the time. Therefore, if the throttle is heated all the time, it will cause energy waste and reduce engine efficiency. This has a negative effect during most of the driving time and needs to be improved urgently. Summary of the invention

[0005] The present application provides a control method, device, vehicle and storage medium for preventing a vehicle throttle from freezing, in order to solve the problem in the related art that the throttle is heated all the time to prevent the throttle from freezing, which leads to energy waste and reduced engine efficiency, greatly affecting the driving performance of the vehicle.

[0006] The first aspect of the present application provides a control method for preventing a vehicle throttle from freezing, comprising the following steps: collecting an actual exhaust temperature of an engine, and collecting a current temperature of the throttle of the engine; judging whether the throttle satisfies a preset freezing condition based on the actual exhaust temperature and the current temperature; if the throttle satisfies the preset freezing condition, generating a target opening of a flow control valve of a condensing device of the engine based on the actual exhaust temperature and the current temperature, and controlling the flow control valve to open to the target opening to condense the exhaust gas of the engine.

[0007] Through the above technical scheme, the embodiment of the present application can collect the actual exhaust temperature and the current temperature of the throttle in real time, and determine whether it is necessary to take anti-icing measures based on the temperature difference between the two, intelligently determine the icing risk of the throttle, improve control accuracy, and effectively prevent or eliminate throttle icing.

[0008] Optionally, in one embodiment of the present application, judging whether the throttle meets a preset icing condition based on the actual exhaust temperature and the current temperature includes: calculating the temperature difference between the actual exhaust temperature and the current temperature; and when the temperature difference is greater than a preset threshold, determining that the preset icing condition is met.

[0009] Through the above technical solution, the embodiment of the present application can determine the icing condition of the throttle by calculating the difference between the exhaust temperature and the temperature of the throttle, and comparing it with a certain threshold, thereby improving the accuracy of icing risk judgment.

[0010] Optionally, in one embodiment of the present application, before determining whether the throttle meets the preset icing condition, it also includes: determining whether the current temperature is lower than the preset temperature; if the current temperature is lower than the preset temperature, controlling the engine to enter an anti-icing mode.

[0011] Through the above technical scheme, the embodiment of the present application can first judge the current temperature of the throttle before judging whether the throttle meets the icing conditions. If the current temperature is lower than a certain temperature, the engine is controlled to enter the anti-icing mode, that is, the anti-icing measures are only started when necessary, avoiding unnecessary consumption of energy under suitable temperature conditions and improving energy utilization efficiency.

[0012] Optionally, in one embodiment of the present application, generating a target opening of a flow control valve of a condensing device of an engine according to the actual exhaust temperature and the current temperature includes: inputting the actual exhaust temperature and the current temperature into a pre-built calculation model to obtain the target opening; or, querying a preset database using the actual exhaust temperature and the current temperature as indexes to obtain the target opening.

[0013] Through the above technical solution, the embodiment of the present application can use a pre-built calculation model or database to calculate the current optimal target opening in real time, improve the accuracy of the engine condensing system's response to the current operating conditions, and improve the speed of response.

[0014] A second aspect of the present application provides a control device for preventing a vehicle throttle from freezing, comprising: a collection module for collecting an actual exhaust temperature of an engine and a current temperature of the throttle of the engine; a first judgment module for judging whether the throttle satisfies a preset freezing condition based on the actual exhaust temperature and the current temperature; and a first control module for generating a target opening of a flow control valve of a condensing device of the engine based on the actual exhaust temperature and the current temperature when the throttle satisfies the preset freezing condition, and controlling the flow control valve to open to the target opening to condense the exhaust gas of the engine.

[0015] Through the above technical scheme, the embodiment of the present application can collect the actual exhaust temperature and the current temperature of the throttle in real time, and determine whether it is necessary to take anti-icing measures based on the temperature difference between the two, intelligently determine the icing risk of the throttle, improve control accuracy, and effectively prevent or eliminate throttle icing.

[0016] Optionally, in one embodiment of the present application, the first judgment module includes: a calculation unit, used to calculate the temperature difference between the actual exhaust temperature and the current temperature; and a judgment unit, used to determine that the preset icing condition is met when the temperature difference is greater than a preset threshold.

[0017] Through the above technical solution, the embodiment of the present application can improve the accuracy of icing risk judgment by calculating the difference between the exhaust temperature and the temperature of the throttle valve and comparing it with a certain threshold to determine the icing condition of the throttle valve.

[0018] Optionally, in one embodiment of the present application, it also includes: a second judgment module, used to judge whether the current temperature is lower than the preset temperature before judging whether the throttle meets the preset icing condition; a second control module, used to control the engine to enter an anti-icing mode when the current temperature is lower than the preset temperature.

[0019] Through the above technical scheme, the embodiment of the present application can first judge the current temperature of the throttle before judging whether the throttle meets the icing conditions. If the current temperature is lower than a certain temperature, the engine is controlled to enter the anti-icing mode, that is, the anti-icing measures are only started when necessary, avoiding unnecessary consumption of energy under suitable temperature conditions and improving energy utilization efficiency.

[0020] Optionally, in one embodiment of the present application, the first control module includes: a first acquisition unit, used to input the actual exhaust temperature and the current temperature into a pre-built calculation model to obtain the target opening; a second acquisition unit, used to query a preset database with the actual exhaust temperature and the current temperature as indexes to obtain the target opening.

[0021] Through the above technical solution, the embodiment of the present application can use a pre-built calculation model or database to calculate the current optimal target opening in real time, improve the accuracy of the engine condensing system's response to the current operating conditions, and improve the speed of response.

[0022] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a control method for preventing vehicle throttle from freezing as described in the above embodiment.

[0023] The fourth aspect of the present application provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, it implements the above control method for preventing vehicle throttle from freezing.

[0024] The fifth aspect of the present application provides a computer program, including a computer program, which, when executed, is used to implement the above-mentioned control method for preventing the vehicle throttle from freezing.

[0025] The embodiment of the present application can collect the actual exhaust temperature and the current temperature of the throttle in real time, and judge the icing condition of the throttle by calculating the difference between the exhaust temperature and the temperature of the throttle, and comparing it with a certain threshold, thereby improving the accuracy of icing risk judgment; before judging whether the throttle meets the icing condition, first judge the current temperature of the throttle, if the current temperature is lower than a certain temperature, control the engine to enter the anti-icing mode, that is, only start the anti-icing measures when necessary, avoid unnecessary consumption of energy under suitable temperature conditions, and improve energy utilization efficiency; use the pre-constructed calculation model or database to calculate the current optimal target opening in real time, improve the accuracy of the engine condensing system's response to the current operating conditions, and improve the response speed.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of an engine and a related control system according to an embodiment of the present application;

[0029] Figure 2 A flow chart of a method for preventing vehicle throttle from icing provided according to an embodiment of the present application;

[0030] Figure 3 It is a flow chart of a method for preventing vehicle throttle from icing according to a specific embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of a control device for preventing vehicle throttle from icing provided in accordance with an embodiment of the present application;

[0032] Figure 5 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0034] The following describes the control method, device, vehicle and storage medium for preventing vehicle throttle from freezing according to the embodiment of the present application with reference to the accompanying drawings. In view of the problem that the throttle is prevented from freezing by heating the throttle all the time in the related art mentioned in the background technology center, which leads to energy waste and engine efficiency reduction, greatly affecting the driving performance of the vehicle, the present application provides a control method for preventing vehicle throttle from freezing, in which the actual exhaust temperature and the current temperature of the throttle can be collected in real time, and the throttle is judged whether it meets the freezing condition according to the actual exhaust temperature and the current temperature of the throttle. If the freezing condition is met, the opening of the flow control valve of the condensing device of the engine is controlled according to the actual exhaust temperature and the current temperature, and the exhaust gas of the engine is condensed. By intelligently judging the freezing risk of the throttle, the control accuracy is improved, the energy waste of traditional continuous heating is avoided, the throttle is effectively prevented from freezing, and the driving performance of the vehicle is improved. Thus, the problem that the throttle is prevented from freezing by heating the throttle all the time in the related art is solved, which leads to energy waste and engine efficiency reduction, greatly affecting the driving performance of the vehicle.

[0035] Before explaining the control method for preventing vehicle throttle from freezing according to the embodiment of the present application, the structure involved in the embodiment of the present application is first illustrated by example.

[0036] like Figure 1As shown, the structure involved in the embodiment of the present application includes: a temperature sensor 1, a temperature sensor 2, a throttle valve 3, a drain port 4, a flow control valve 5, a cooling water circuit and a control unit 7.

[0037] The embodiment of the present application requires at least two temperature sensors, which detect the engine exhaust temperature and the temperature at the throttle in real time, and import the temperature parameters into the control unit. The control unit determines whether the throttle is likely to be frozen, thereby controlling whether the flow control valve is opened, and at the same time controls the flow control valve to adjust the flow rate according to the temperature difference.

[0038] Specifically, Figure 2 A flow chart of a control method for preventing vehicle throttle from freezing provided in an embodiment of the present application.

[0039] like Figure 2 As shown, the control method for preventing the vehicle throttle from freezing includes the following steps:

[0040] In step S201, the actual exhaust temperature of the engine is collected, and the current temperature of the throttle valve of the engine is collected.

[0041] It is understandable that the actual exhaust temperature directly reflects the working state and efficiency of the engine combustion chamber. This temperature is usually measured at the exhaust manifold of the engine or the exhaust pipe before the turbocharger. It is an important parameter for monitoring the health of the engine and adjusting the engine performance. The current temperature of the throttle refers to the temperature of the throttle body in the engine intake system. The throttle is a key component for controlling the amount of air entering the engine combustion chamber. The temperature inside the throttle body is not only affected by the external environment, but also related to the operating state of the engine.

[0042] In actual implementation, the temperature sensor can be installed in the exhaust system of the engine, such as but not limited to the exhaust manifold or the exhaust pipe before the turbocharger, to monitor the actual exhaust temperature of the engine in real time. At the same time, another temperature sensor can be arranged near the throttle body of the engine to accurately measure the current temperature of the throttle. These two sets of temperature data are collected in real time by sensors, and the temperature parameters are imported into the control unit to provide data support for the control unit to take measures.

[0043] The embodiment of the present application can improve the accuracy and timeliness of data by monitoring the exhaust temperature and throttle temperature in real time and importing the temperature parameters into the control unit, so as to prepare for the control unit to take anti-icing measures.

[0044] In step S202, it is determined whether the throttle valve meets a preset icing condition based on the actual exhaust temperature and the current temperature.

[0045] It is understandable that the preset icing conditions generally refer to situations where, under specific ambient temperature and humidity conditions, the temperature in the engine intake system may drop below the dew point, causing water vapor to condense and eventually freeze. These conditions include but are not limited to: ambient temperature (temperature below the freezing point), dew point temperature (the temperature at which water vapor in the air condenses into dew. When the actual exhaust temperature or throttle temperature drops below the dew point temperature, water vapor begins to condense), relative humidity (the ratio of the water vapor content in the air to the amount of water vapor that the air can hold at that temperature. The higher the relative humidity, the greater the possibility of condensation and freezing) and airflow velocity (lower airflow velocity may cause condensed water to accumulate on engine components, increasing the risk of freezing), etc.

[0046] Optionally, in one embodiment of the present application, whether the throttle meets the preset icing condition is determined based on the actual exhaust temperature and the current temperature, including: calculating the temperature difference between the actual exhaust temperature and the current temperature; when the temperature difference is greater than a preset threshold, determining that the preset icing condition is met.

[0047] During the actual execution process, the temperature sensor can convert the collected temperature into an electrical signal and send data to the control unit in real time. After receiving the temperature data, the control unit can process the data internally and convert it into a temperature value to calculate the difference between the actual exhaust temperature and the current temperature of the throttle. This calculation is performed in real time to ensure timely response to temperature changes.

[0048] In some cases, when the difference between the actual exhaust temperature and the current throttle temperature is greater than a certain threshold, the control unit determines that there is a risk of icing. This threshold is determined based on theoretical analysis including but not limited to the working principle of the engine and the physical process of ice formation.

[0049] Optionally, in one embodiment of the present application, before determining whether the throttle meets the preset icing condition, it also includes: determining whether the current temperature is lower than the preset temperature; if the current temperature is lower than the preset temperature, controlling the engine to enter an anti-icing mode.

[0050] In some embodiments, a pre-processing step is included, that is, before determining whether the throttle meets the set icing condition, it is first determined whether the current temperature is lower than a certain temperature value (the temperature value is obtained based on, but not limited to, theoretical analysis or experimental data collection). The temperature sensor monitors the current ambient temperature of the throttle, and the control unit receives the temperature data and compares it with the set certain temperature value. If the current temperature is lower than the set certain temperature value, the control unit determines that there is a potential icing risk, and the engine enters the anti-icing mode to prepare for the subsequent anti-icing measures.

[0051] The embodiment of the present application can judge the current temperature before judging whether the throttle meets the set icing conditions. If the current temperature is lower than a certain temperature value, the engine enters the anti-icing mode to avoid unnecessary energy consumption under suitable temperature conditions, improve energy utilization efficiency, calculate the difference between the exhaust temperature and the throttle temperature, and compare it with a certain threshold (the threshold may include but is not limited to that obtained based on theoretical analysis or experimental data collection) to judge the icing condition of the throttle, thereby improving the accuracy of icing risk judgment.

[0052] In step S203, if the throttle meets the preset icing condition, the target opening of the flow control valve of the engine's condensing device is generated according to the actual exhaust temperature and the current temperature, and the flow control valve is controlled to open to the target opening to condense the exhaust gas of the engine.

[0053] It is understood that the condensing device of the engine is a device used to convert water vapor or other gaseous substances in the exhaust gas into liquid, and the flow control valve is a device used to adjust the flow of fluid, which controls the flow of exhaust gas through the condensing device to achieve the best condensation effect. The target opening refers to the degree of opening that the flow control valve needs to achieve in order to achieve a specific function (such as but not limited to condensing exhaust gas).

[0054] Optionally, in one embodiment of the present application, a target opening of a flow control valve of a condensing device of an engine is generated based on the actual exhaust temperature and the current temperature, including: inputting the actual exhaust temperature and the current temperature into a pre-built calculation model to obtain the target opening; or, using the actual exhaust temperature and the current temperature as indexes, querying a preset database to obtain the target opening.

[0055] In some embodiments, a mathematical model is constructed based on a large amount of experimental data and theoretical analysis. The model can be an analytical model based on physical principles or an empirical model obtained through machine learning training. The model takes into account the impact of the actual exhaust temperature and the current temperature on the target opening. Furthermore, the actual exhaust temperature and the current temperature are passed into the model as input parameters. These temperature data are obtained from the temperature sensor in real time and processed by the control unit. The model calculates the most suitable target opening based on the input parameters, which may involve complex mathematical operations, such as but not limited to function fitting, differential or integral calculations, etc. Finally, the target opening output by the model is directly used to control the opening and closing degree of the flow control valve to ensure the best condensation effect and prevent icing.

[0056] In other embodiments, under a large number of experimental conditions, a database is established by manually or automatically recording different actual exhaust temperatures and target openings corresponding to the current temperature, and each pair of temperature values ​​and target openings in the database constitutes an index-value pair. The control unit uses the received actual exhaust temperature and current temperature as indexes to search for the corresponding target opening in the database. If the input temperature value completely matches an index in the database, the target opening corresponding to the index is directly used. If there is no completely matching index, it may be necessary to estimate the closest opening value through methods including but not limited to interpolation. According to the queried or estimated target opening, the control unit controls the flow control valve to make corresponding opening adjustments.

[0057] The embodiment of the present application can use a pre-built calculation model or database to calculate the current optimal target opening in real time, thereby improving the accuracy of the engine condensing system's response to the current operating conditions and increasing the speed of the response.

[0058] Combination Figure 3 As shown, the control principle of preventing vehicle throttle from freezing in the embodiment of the present application is described with an embodiment. Figure 3 As shown, the control principle of preventing the vehicle throttle from freezing in the embodiment of the present application is as follows:

[0059] Step S301: Obtain the engine exhaust temperature and the temperature near the throttle valve.

[0060] The engine exhaust gas temperature and the temperature near the throttle valve are obtained by a temperature sensor and another temperature sensor respectively.

[0061] Step S302: When the engine throttle temperature is lower than the first set value, the next step of judgment is performed.

[0062] It is understandable that this is a preprocessing process, that is, before determining whether the throttle meets the set icing conditions, it is first determined whether the current temperature is lower than a certain temperature value (the temperature value may include but is not limited to that obtained based on theoretical analysis or experimental data collection).

[0063] Step S303: When the difference between the engine exhaust temperature and the throttle temperature is greater than a second set value, the condensing device is started.

[0064] When the difference between the actual exhaust temperature and the current temperature of the throttle is greater than a certain threshold, the control unit determines that there is a risk of icing. This threshold is determined based on theoretical analysis including but not limited to the working principle of the engine and the physical process of ice formation.

[0065] Step S304: adjusting the flow control valve according to the difference between the engine exhaust temperature and the throttle temperature, thereby adjusting the condensation efficiency.

[0066] According to the difference between the exhaust gas temperature and the throttle temperature calculated in real time, the control unit adjusts the opening of the flow control valve to improve the condensation efficiency.

[0067] In the actual implementation process, firstly, based on the temperature data transmitted by the temperature sensor 1 at the throttle, it is determined that there is a risk of throttle icing. The reason for throttle icing is that hot water vapor encounters a sudden temperature change of the cold throttle, resulting in frost and ice. After determining that there is a risk of throttle icing, the control unit processes the received actual exhaust temperature and the current temperature of the throttle and calculates the difference between the two. Finally, the opening of the flow control valve is controlled according to the difference between the two, so that the water vapor is liquefied and flows out from the drain port, thereby preventing the throttle from freezing.

[0068] According to the control method for preventing the vehicle throttle from freezing proposed in the embodiment of the present application, the actual exhaust temperature and the current temperature of the throttle can be collected in real time, and it is judged whether the throttle meets the freezing conditions based on the actual exhaust temperature and the current temperature of the throttle. If the freezing conditions are met, the opening of the flow control valve of the engine's condensing device is controlled according to the actual exhaust temperature and the current temperature to condense the engine's exhaust gas. By intelligently judging the freezing risk of the throttle, the control accuracy is improved, the energy waste of traditional continuous heating is avoided, the throttle is effectively prevented from freezing, and the vehicle's driving performance is improved.

[0069] Next, a control device for preventing vehicle throttle from freezing according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0070] Figure 4 It is a block diagram of a control device for preventing a vehicle throttle from freezing according to an embodiment of the present application.

[0071] like Figure 4 As shown, the control device 10 for preventing the vehicle throttle from freezing includes: a collection module 100 , a first judgment module 200 and a first control module 300 .

[0072] Specifically, the acquisition module 100 is used to acquire the actual exhaust temperature of the engine and the current temperature of the throttle of the engine.

[0073] The first judgment module 200 is used to judge whether the throttle valve meets the preset icing condition according to the actual exhaust temperature and the current temperature.

[0074] The first control module 300 is used to generate a target opening of a flow control valve of a condensing device of the engine according to the actual exhaust temperature and the current temperature when the throttle meets the preset icing condition, and control the flow control valve to open to the target opening to condense the exhaust gas of the engine.

[0075] Optionally, in one embodiment of the present application, the first judgment module 200 includes: a calculation unit and a judgment unit.

[0076] The calculation unit is used to calculate the temperature difference between the actual exhaust temperature and the current temperature.

[0077] The determination unit is used to determine that a preset icing condition is met when the temperature difference is greater than a preset threshold.

[0078] Optionally, in an embodiment of the present application, it further includes: a second judgment module 400 and a second control module 500 .

[0079] Specifically, the second judgment module 400 is used to judge whether the current temperature is lower than a preset temperature before judging whether the throttle valve meets the preset icing condition.

[0080] The second control module 500 is used to control the engine to enter an anti-icing mode when the current temperature is lower than a preset temperature.

[0081] Optionally, in one embodiment of the present application, the first control module 300 includes: a first acquisition unit and a second acquisition unit.

[0082] The first acquisition unit is used to input the actual exhaust temperature and the current temperature into a pre-built calculation model to obtain the target opening degree.

[0083] The second acquisition unit is used to query a preset database using the actual exhaust temperature and the current temperature as indexes to obtain a target opening degree.

[0084] It should be noted that the above explanation of the embodiment of the control method for preventing the vehicle throttle from freezing is also applicable to the control device for preventing the vehicle throttle from freezing in this embodiment, and will not be repeated here.

[0085] According to the control device for preventing the vehicle throttle from freezing proposed in the embodiment of the present application, the actual exhaust temperature and the current temperature of the throttle can be collected in real time, and it is judged whether the throttle meets the freezing conditions based on the actual exhaust temperature and the current temperature of the throttle. If the freezing conditions are met, the opening of the flow control valve of the engine's condensing device is controlled according to the actual exhaust temperature and the current temperature to condense the engine's exhaust gas. By intelligently judging the freezing risk of the throttle, the control accuracy is improved, the energy waste of traditional continuous heating is avoided, the throttle is effectively prevented from freezing, and the vehicle's driving performance is improved.

[0086] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0087] A memory 501 , a processor 502 , and a computer program stored in the memory 501 and executable on the processor 502 .

[0088] When the processor 502 executes the program, the control method for preventing the vehicle throttle from freezing provided in the above embodiment is implemented.

[0089] Furthermore, the vehicle also includes:

[0090] The communication interface 503 is used for communication between the memory 501 and the processor 502 .

[0091] The memory 501 is used to store computer programs that can be executed on the processor 502 .

[0092] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0093] If the memory 501, the processor 502 and the communication interface 503 are implemented independently, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0094] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0095] The processor 502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0096] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned control method for preventing vehicle throttle from freezing.

[0097] An embodiment of the present application also provides a computer program product, including a computer program, which, when executed, is used to implement the above control method for preventing vehicle throttle from freezing.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0099] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0100] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0101] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways as necessary and then storing it in a computer memory.

[0102] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented by hardware, as in another embodiment, it can be implemented by any one or a combination of multiple of the following technologies known in the art: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0103] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0104] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0105] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A control method for preventing vehicle throttle from freezing, characterized in that: The following steps are involved: Collecting the actual exhaust temperature of the engine and collecting the current temperature of the throttle of the engine; Determining whether the throttle valve meets a preset icing condition according to the actual exhaust temperature and the current temperature; If the throttle valve meets the preset icing condition, a target opening of a flow control valve of a condensing device of the engine is generated according to the actual exhaust temperature and the current temperature, and the flow control valve is controlled to open to the target opening to condense the exhaust gas of the engine.

2. The method according to claim 1, characterized in that The determining whether the throttle valve meets a preset icing condition according to the actual exhaust temperature and the current temperature includes: Calculating a temperature difference between the actual exhaust temperature and the current temperature; When the temperature difference is greater than a preset threshold, it is determined that the preset icing condition is met.

3. The method according to claim 1, characterized in that Before determining whether the throttle valve meets the preset icing condition, the method further includes: Determining whether the current temperature is lower than a preset temperature; If the current temperature is lower than the preset temperature, the engine is controlled to enter an anti-icing mode.

4. The method according to claim 1, characterized in that: The step of generating a target opening of a flow control valve of a condensing device of an engine according to the actual exhaust temperature and the current temperature comprises: Inputting the actual exhaust temperature and the current temperature into a pre-built calculation model to obtain the target opening degree; Alternatively, the actual exhaust temperature and the current temperature are used as indexes to query a preset database to obtain the target opening degree.

5. A control device for preventing a vehicle throttle from freezing, characterized in that: include: A collection module, used to collect the actual exhaust temperature of the engine and the current temperature of the throttle of the engine; A first judgment module, used for judging whether the throttle valve meets a preset icing condition according to the actual exhaust temperature and the current temperature; The first control module is used to generate a target opening of a flow control valve of a condensing device of the engine according to the actual exhaust temperature and the current temperature when the throttle valve meets the preset icing condition, and control the flow control valve to open to the target opening to condense the exhaust gas of the engine.

6. The device according to claim 5, characterized in that The first judgment module includes: A calculation unit, used for calculating the temperature difference between the actual exhaust temperature and the current temperature; The determination unit is used to determine that the preset icing condition is met when the temperature difference is greater than a preset threshold.

7. The device according to claim 5, characterized in that Also includes: A second judgment module is used to judge whether the current temperature is lower than a preset temperature before judging whether the throttle meets the preset icing condition; The second control module is used for controlling the engine to enter an anti-icing mode when the current temperature is lower than the preset temperature.

8. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement a control method for preventing vehicle throttle from freezing as described in any one of claims 1 to 4.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement a control method for preventing a vehicle throttle from freezing as described in any one of claims 1 to 4.

10. A computer program product, characterized in that It comprises a computer program, characterized in that the computer program is executed to implement the control method for preventing vehicle throttle from icing as described in any one of claims 1-4.

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