Method and device for thermal management control of catalytic converter, electronic equipment and medium

Abstract

This application discloses a thermal management control method, device, electronic equipment, and medium for a catalytic converter. When a vehicle is detected entering a towing condition, the engine coolant temperature is detected. If the engine coolant temperature is determined to be higher than a standard temperature, the vehicle's opening and closing valves, including an EGR valve and a throttle valve, are controlled to their initial opening and closing levels. During the towing process, a correction coefficient is used to adjust the current opening and closing levels of the valves in real time until the vehicle exits the towing condition. This correction coefficient is determined based on the catalytic converter's usage time. By applying the technical solution of this application, the opening and closing levels of the throttle valve and EGR valve can be adjusted in real time based on the vehicle's engine coolant temperature when the vehicle enters a towing condition. This reduces the impact of air on the temperature of the carrier inside the catalytic converter by adjusting the airflow through the two valves. This ensures the efficient operation of the catalytic converter, thereby reducing vehicle pollutant emissions.

Description

Technical Field

[0001] This application relates to vehicle control technology, and in particular to a thermal management control method, device, electronic equipment, and medium for a catalytic converter. Background Technology

[0002] The three-way catalytic converter, a key device for controlling pollutants in vehicle engines, can convert harmful substances in exhaust gases into harmless ones. The conversion efficiency of the catalytic converter is closely related to the temperature within the carrier; that is, the catalytic converter can only function properly when a certain temperature is reached.

[0003] In related technologies, vehicles operate under complex and varied conditions during driving, frequently entering a towing mode. In this situation, the fresh air drawn into the engine is directly discharged into the catalytic converter without participating in combustion, causing a rapid drop in the temperature of the catalyst carrier within the catalytic converter. Furthermore, when the vehicle exits the towing mode, the exhaust gas produced by engine combustion experiences a decrease in conversion efficiency due to the reduced catalytic converter temperature.

[0004] Therefore, how to design a thermal management control method for a catalyst to reduce the influence of air on the temperature of the catalyst carrier when the vehicle enters the reverse towing condition has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a thermal management control method, device, electronic device, and medium for a catalytic converter. This application addresses the problem in the related art where pollutant emissions increase due to the decrease in catalytic converter temperature when a vehicle enters a reverse towing condition.

[0006] According to one aspect of the embodiments of this application, a thermal management control method for a catalyst is provided, the method comprising:

[0007] When the vehicle is detected to be in reverse towing mode, the engine coolant temperature of the vehicle is detected.

[0008] After determining that the engine coolant temperature is higher than the standard temperature value, the vehicle's opening and closing valves are controlled to the initial opening and closing degree, wherein the opening and closing valves include the EGR valve and the throttle valve.

[0009] During the process of the vehicle being in the towing condition, the current opening and closing degree of the valve is corrected in real time using a correction factor until the vehicle exits the towing condition, wherein the correction factor is determined based on the usage time of the vehicle's catalyst.

[0010] Optionally, in one embodiment of this application, detecting that the vehicle has entered the reverse towing condition includes:

[0011] When it is detected that the accelerator of the vehicle is not pressed, the engine speed is greater than the preset speed value, and the engine load is less than the preset load value, it is determined that the vehicle has entered the reverse towing mode.

[0012] Optionally, in one embodiment of this application, before correcting the current opening / closing degree of the valve in real time using a correction coefficient, the method further includes:

[0013] Obtain the usage time corresponding to the catalytic converter of the vehicle;

[0014] A correction coefficient matching the usage duration is selected, wherein the correction coefficient is used to reflect the correlation between the duration of the vehicle entering the reverse towing condition and the degree of correction, wherein the degree of correction is positively correlated with the usage duration.

[0015] Optionally, in one embodiment of this application, after selecting the correction coefficient that matches the usage duration, the method further includes:

[0016] Determine the first opening degree of the throttle valve corresponding to the initial opening degree, and the second opening degree of the EGR valve;

[0017] The duration of the vehicle being in the reverse towing condition is substituted into the correction relationship in real time to determine the correction degree corresponding to the duration.

[0018] Using the aforementioned degree of correction, the first degree of opening and closing is gradually reduced, and the second degree of opening and closing is gradually increased.

[0019] Optionally, in one embodiment of this application, after detecting the engine coolant temperature of the vehicle, the method further includes:

[0020] After determining that the engine coolant temperature is lower than or equal to the standard temperature value, the EGR valve of the vehicle is closed, and the throttle valve is adjusted to the third opening degree.

[0021] According to another aspect of the embodiments of this application, a thermal management control device for a catalyst is provided, comprising:

[0022] The detection module is configured to detect the engine coolant temperature of the vehicle when it enters the reverse towing condition;

[0023] The control module is configured to control the vehicle's opening and closing valves to an initial opening and closing degree after determining that the engine coolant temperature is higher than the standard temperature value, wherein the opening and closing valves include the EGR valve and the throttle valve.

[0024] The correction module is configured to correct the current opening and closing degree of the opening and closing valve in real time using a correction coefficient while the vehicle is in the towing condition, until the vehicle exits the towing condition, wherein the correction coefficient is determined based on the usage time of the vehicle's catalytic converter.

[0025] According to another aspect of the embodiments of this application, an electronic device is provided, comprising:

[0026] Memory, used to store executable instructions; and

[0027] A display is used to execute the executable instructions with the memory to perform the operation of the thermal management control method for any of the catalysts described above.

[0028] According to another aspect of the embodiments of this application, a computing device readable storage medium is provided for storing computing device readable instructions, which, when executed, perform the operation of the thermal management control method of any of the catalysts described above.

[0029] In this application, when the vehicle enters a towing condition, the engine coolant temperature is detected. After determining that the engine coolant temperature is higher than a standard temperature, the vehicle's opening and closing valves, including the EGR valve and the throttle valve, are controlled to their initial opening and closing levels. During the towing process, a correction factor is used to adjust the current opening and closing levels of the valves in real time until the vehicle exits the towing condition. This correction factor is determined based on the vehicle's catalytic converter usage time. By applying the technical solution of this application, the opening and closing levels of the throttle valve and EGR valve can be adjusted in real time based on the vehicle's engine coolant temperature when entering a towing condition. This reduces the impact of air on the temperature of the catalyst carrier by adjusting the airflow through the two valves, thereby ensuring the efficient operation of the catalytic converter and reducing vehicle pollutant emissions.

[0030] The technical solutions of this application will be further described in detail below using several embodiments. Attached Figure Description

[0031] The accompanying drawings, which form part of this specification, illustrate embodiments of this application and, together with the description, serve to explain the principles of this application.

[0032] This application can be more clearly understood with reference to the accompanying drawings and the following detailed description, wherein:

[0033] Figure 1 This invention provides a schematic diagram of a system architecture for thermal management control of a catalyst according to an embodiment of this application.

[0034] Figure 2This illustration shows a schematic diagram of a method for thermal management control of a catalyst according to an embodiment of this application;

[0035] Figure 3 This paper illustrates a schematic diagram of the overall process for thermal management control of a catalyst according to an embodiment of this application.

[0036] Figure 4 A schematic diagram illustrating the relationship between braking power and engine speed is shown in one embodiment of this application.

[0037] Figure 5 This invention provides a schematic diagram of the structure of an electronic device according to an embodiment of the present application.

[0038] Figure 6 This illustration shows a schematic diagram of the structure of an electronic device according to an embodiment of this application;

[0039] Figure 7 A schematic diagram of a storage medium provided in one embodiment of this application is shown. Detailed Implementation

[0040] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0041] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0042] The following description of at least one exemplary embodiment is merely illustrative and is not intended to limit the scope of this application or its application or use.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] The following is combined with Figures 1-4 This application describes a method for thermal management control of a catalyst according to exemplary embodiments thereof. It should be noted that the following application scenarios are shown only to facilitate understanding of the spirit and principles of this application, and the embodiments of this application are not limited in any way. Rather, the embodiments of this application can be applied to any applicable scenario.

[0048] like Figure 1 As shown, system architecture 100 may include one or more of vehicles 101, 102, and 103, a network 104, and a server 105. Network 104 serves as the medium for providing a communication link between vehicles 101, 102, and 103 and server 105. Network 104 may include various connection types, such as wired or wireless communication links or fiber optic cables, etc.

[0049] It should be understood that Figure 1 The number of vehicles, networks, and servers shown is merely illustrative. Depending on implementation needs, there can be any number of vehicles, networks, and servers. For example, server 105 could be a server cluster consisting of multiple servers.

[0050] Users can use vehicles 101, 102, and 103 to interact with server 105 via network 104 to receive or send one or more key path trajectory information, as well as corresponding execution instructions. In one embodiment, vehicles 101, 102, and 103 may be equipped with GPS devices.

[0051] In one embodiment of this application, the following steps are performed using the mobile driving data uploaded by the driving vehicle 103 (which may also be driving vehicle 101 or 102): when the vehicle is detected to be entering the towing condition, the engine coolant temperature of the vehicle is detected; after determining that the engine coolant temperature is higher than the standard temperature value, the opening and closing valves of the vehicle are controlled to the initial opening and closing degree, wherein the opening and closing valves include an EGR valve and a throttle valve; during the process of the vehicle being in the towing condition, the current opening and closing degree of the opening and closing valves is corrected in real time using a correction coefficient until the vehicle exits the towing condition, wherein the correction coefficient is determined based on the usage time of the vehicle's catalytic converter.

[0052] It should be noted that the thermal management control method for the catalytic converter provided in this application embodiment can be executed by one or more of the vehicles 101, 102, and 103, and / or by the server 105. Accordingly, the thermal management control device for the catalytic converter provided in this application embodiment is generally installed in the corresponding vehicle and / or in the server 105, but this application is not limited thereto.

[0053] Furthermore, this application also proposes a thermal management control method, device, vehicle, and medium for a catalytic converter.

[0054] Figure 2 A schematic flowchart illustrating a thermal management control method for a catalyst according to an embodiment of this application is shown. Figure 2 As shown, the method includes:

[0055] S101, when the vehicle is detected to be in reverse towing mode, the engine coolant temperature of the vehicle is detected.

[0056] S102, after determining that the engine coolant temperature is higher than the standard temperature value, controls the vehicle's opening and closing valves to the initial opening and closing degree, including the EGR valve and the throttle valve.

[0057] S103, while the vehicle is in the reverse towing condition, uses a correction coefficient to correct the current opening and closing degree of the valve in real time until the vehicle exits the reverse towing condition, where the correction coefficient is determined based on the usage time of the vehicle's catalytic converter.

[0058] With the rapid development of the automotive industry and the continuous improvement of people's living standards, the addition of new functions such as intelligent vehicle systems has continuously improved the vehicle riding experience. However, as a means of transportation, improving vehicle driving performance remains a crucial technological issue that the automotive industry can never ignore.

[0059] Furthermore, as a key device for controlling pollutants in China VI natural gas engines, the catalytic converter can remove harmful carbon monoxide (CO) and nitrogen oxides (NOx) from the exhaust gas. x It converts hydrocarbons (THC) into harmless water (H2O), carbon dioxide (CO2), and nitrogen (N2).

[0060] It should be noted that the conversion efficiency of a catalytic converter is closely related to the temperature inside the carrier. In other words, the catalytic converter can only function properly when it is continuously maintained at a certain temperature. However, vehicles often enter a reverse-towing mode during driving. In this mode, the fresh air drawn into the engine is directly discharged into the catalytic converter without participating in combustion, causing the temperature of the carrier inside the catalytic converter to drop rapidly. When the vehicle exits the reverse-towing mode, the exhaust gases produced by engine combustion experience a decrease in conversion efficiency due to the lower temperature of the catalytic converter, thus increasing vehicle pollutant emissions.

[0061] In one approach, combining Figure 3 The following is an exemplary description of a thermal management control method for a catalyst proposed in an embodiment of this application:

[0062] Step 1: When it is detected that the accelerator pedal of the vehicle is not pressed, the engine speed is greater than the preset speed value, and the engine load is less than the preset load value, the vehicle is determined to enter the reverse towing mode.

[0063] In this context, the vehicle's reverse towing condition refers to the state where the engine fuel is cut off. In one embodiment of this application, the vehicle's ECU can collect real-time sensor signals at the throttle position, intake manifold pressure, engine speed, and load values, etc., so that the vehicle ECU can determine whether the vehicle has entered the reverse towing condition based on this information.

[0064] As an example, in this application embodiment, when it is detected that the accelerator of the vehicle is not pressed (i.e., determined by the sensor signal at the accelerator position), and the engine speed and load value both meet certain conditions (i.e., the engine speed is greater than the preset speed value, and the engine load is less than the preset load value), it can be determined that the vehicle has entered the reverse towing condition.

[0065] Step 2: Check the vehicle's engine coolant temperature. Then proceed to either step 3a or step 3b.

[0066] In one approach, once the vehicle is determined to be in a towing condition, this embodiment of the application can indirectly determine whether the opening and closing valves need to be closed by monitoring the engine coolant temperature in order to regulate the catalyst temperature.

[0067] Step 3a: After determining that the engine coolant temperature is higher than the standard temperature value, control the vehicle's opening and closing valves to the initial opening and closing degree.

[0068] Among them, the opening and closing valves include the EGR valve and the throttle valve.

[0069] In one embodiment of this application, when the vehicle is detected to be in a towing condition and the engine coolant temperature is greater than the standard temperature value a, the first opening degree of the vehicle's EGR valve can be controlled to be c, and the second opening degree of the throttle valve can be controlled to be d. Where c is greater than 0.

[0070] Here, the first degree of opening / closing c and the second degree of opening / closing d are the initial opening / closing degrees of the valves (i.e., the EGR valve and the throttle valve). As an example, the first degree of opening / closing c can be 50% or 40%, and the second degree of opening / closing d can be 30% or 40%, etc.

[0071] Step 4a: Obtain the usage time of the vehicle's catalyst and select a correction factor that matches the usage time.

[0072] The correction coefficient is used to reflect the relationship between the duration of the vehicle entering the reverse towing condition and the degree of correction, where the degree of correction is positively correlated with the duration of use.

[0073] In one approach, when the engine coolant temperature is greater than the standard temperature value 'a', a correction factor matching the vehicle can be determined using a correction table.

[0074] The correction table is a software-calculated curve that adjusts the catalytic converter's oxygen storage capacity for the EGR valve opening and throttle opening during reverse driving. Understandably, as the vehicle's catalytic converter ages, its oxygen storage capacity decreases. Therefore, the correction for throttle opening will gradually decrease, while the correction for EGR valve opening will gradually increase.

[0075] In other words, the correction coefficient in this application embodiment is used to reflect the need to gradually reduce the first opening degree of the throttle valve and gradually increase the second opening degree of the EGR valve as the vehicle catalyst ages and the duration of the reverse towing operation increases.

[0076] Step 5a: Determine the first opening degree of the throttle valve and the second opening degree of the EGR valve corresponding to the initial opening degree.

[0077] Step 6a: Substitute the duration of the vehicle's reversing towing condition into the correction relationship in real time, determine the correction degree corresponding to the duration, and use the correction degree to gradually reduce the first opening / closing degree and gradually increase the second opening / closing degree. Then proceed to step 7.

[0078] Specifically, in this embodiment, when the engine coolant temperature is detected to be high and the vehicle enters a towing condition, the throttle valve is controlled to a first opening degree and the EGR valve is controlled to a second opening degree. Furthermore, a counter inside the vehicle ECU begins to accumulate the duration T of the towing condition, thereby increasing the duration T and continuously correcting the opening degree of the throttle valve and EGR valve.

[0079] In other words, as the duration T increases, the opening degree of the EGR valve gradually increases from the initial first opening degree, and the maximum does not exceed 100%. At the same time, the opening degree of the throttle valve gradually decreases from the second opening degree, and the minimum does not fall below the engine's idle throttle setting value.

[0080] Step 3b: After confirming that the engine coolant temperature is below or equal to the standard temperature value, close the vehicle's EGR valve and adjust the throttle valve to the third opening position. Then proceed to step 7.

[0081] In one approach, when the vehicle is determined to be in a towing condition and the engine coolant temperature is detected to be less than or equal to the standard temperature value 'a', it indicates that the current coolant temperature is too low. To prevent the EGR valve from freezing and thus preventing the vehicle from running normally, this embodiment of the application can control the throttle opening to the third opening degree 'b', and the EGR valve opening degree to '0' (i.e., the EGR valve is completely closed), thereby facilitating rapid engine warm-up and preventing the vehicle from being unable to run normally for an extended period.

[0082] Step 7: Once the vehicle is detected to have exited the towing mode, stop controlling the opening and closing valves of the vehicle.

[0083] In this application, when the vehicle enters a towing condition, the engine coolant temperature is detected. After determining that the engine coolant temperature is higher than a standard temperature, the vehicle's opening and closing valves, including the EGR valve and the throttle valve, are controlled to their initial opening and closing levels. During the towing process, a correction factor is used to adjust the current opening and closing levels of the valves in real time until the vehicle exits the towing condition. This correction factor is determined based on the vehicle's catalytic converter usage time. By applying the technical solution of this application, the opening and closing levels of the throttle valve and EGR valve can be adjusted in real time based on the vehicle's engine coolant temperature when entering a towing condition. This reduces the impact of air on the temperature of the catalyst carrier by adjusting the airflow through the two valves, thereby ensuring the efficient operation of the catalytic converter and reducing vehicle pollutant emissions.

[0084] Optionally, in one embodiment of this application, detecting that the vehicle has entered the reverse towing condition includes:

[0085] When it is detected that the accelerator of the vehicle is not pressed, the engine speed is greater than the preset speed value, and the engine load is less than the preset load value, it is determined that the vehicle has entered the reverse towing mode.

[0086] Optionally, in one embodiment of this application, before correcting the current opening / closing degree of the valve in real time using a correction coefficient, the method further includes:

[0087] Obtain the usage time corresponding to the catalytic converter of the vehicle;

[0088] A correction coefficient matching the usage duration is selected, wherein the correction coefficient is used to reflect the correlation between the duration of the vehicle entering the reverse towing condition and the degree of correction, wherein the degree of correction is positively correlated with the usage duration.

[0089] Optionally, in one embodiment of this application, after selecting the correction coefficient that matches the usage duration, the method further includes:

[0090] Determine the first opening degree of the throttle valve corresponding to the initial opening degree, and the second opening degree of the EGR valve;

[0091] The duration of the vehicle being in the reverse towing condition is substituted into the correction relationship in real time to determine the correction degree corresponding to the duration.

[0092] Using the aforementioned degree of correction, the first degree of opening and closing is gradually reduced, and the second degree of opening and closing is gradually increased.

[0093] Optionally, in one embodiment of this application, after detecting the engine coolant temperature of the vehicle, the method further includes:

[0094] After determining that the engine coolant temperature is lower than or equal to the standard temperature value, the EGR valve of the vehicle is closed, and the throttle valve is adjusted to the third opening degree.

[0095] In one approach, such as Figure 4 The diagram shows a schematic of the thermal management control process for a catalytic converter proposed in this application. As can be seen from the diagram, when the vehicle enters the towing condition, the engine coolant temperature of the vehicle is detected. After determining that the engine coolant temperature is higher than the standard temperature value, the opening and closing valves of the vehicle are controlled to the initial opening and closing degree. The opening and closing valves include the EGR valve and the throttle valve. During the towing process, the current opening and closing degree of the opening and closing valves is corrected in real time using a correction coefficient until the vehicle exits the towing condition. The correction coefficient is determined based on the usage time of the vehicle's catalytic converter.

[0096] Furthermore, this application can utilize relevant measurement values ​​from current software and engine configuration to dynamically control the opening and closing of the throttle and EGR valve when the vehicle enters reverse-dragging conditions. This eliminates the need for additional external devices. Consequently, while saving costs, it effectively reduces the impact of air on the catalyst carrier temperature when the vehicle enters reverse-dragging conditions. This effectively reduces the influence of air on the catalyst carrier temperature, maintaining the catalyst's efficient operation and thus reducing pollutant emissions.

[0097] In another embodiment of this application, such as Figure 5 As shown, this application also provides a thermal management control device for a catalytic converter. It includes:

[0098] The detection module 201 is configured to detect the engine coolant temperature of the vehicle when the vehicle enters the reverse towing condition.

[0099] The control module 202 is configured to control the opening and closing valves of the vehicle to an initial opening and closing degree after determining that the engine coolant temperature is higher than the standard temperature value, wherein the opening and closing valves include the EGR valve and the throttle valve.

[0100] The correction module 203 is configured to correct the current opening and closing degree of the opening and closing valve in real time using a correction coefficient while the vehicle is in the towing condition, until the vehicle exits the towing condition, wherein the correction coefficient is determined based on the usage time of the vehicle's catalyst.

[0101] In this application, when the vehicle enters a towing condition, the engine coolant temperature is detected. After determining that the engine coolant temperature is higher than a standard temperature, the vehicle's opening and closing valves, including the EGR valve and the throttle valve, are controlled to their initial opening and closing levels. During the towing process, a correction factor is used to adjust the current opening and closing levels of the valves in real time until the vehicle exits the towing condition. This correction factor is determined based on the vehicle's catalytic converter usage time. By applying the technical solution of this application, the opening and closing levels of the throttle valve and EGR valve can be adjusted in real time based on the vehicle's engine coolant temperature when entering a towing condition. This reduces the impact of air on the temperature of the catalyst carrier by adjusting the airflow through the two valves, thereby ensuring the efficient operation of the catalytic converter and reducing vehicle pollutant emissions.

[0102] In another embodiment of this application, the control module 202 is configured to:

[0103] When it is detected that the accelerator of the vehicle is not pressed, the engine speed is greater than the preset speed value, and the engine load is less than the preset load value, it is determined that the vehicle has entered the reverse towing mode.

[0104] In another embodiment of this application, the control module 202 is configured to:

[0105] Obtain the usage time corresponding to the catalytic converter of the vehicle;

[0106] A correction coefficient matching the usage duration is selected, wherein the correction coefficient is used to reflect the correlation between the duration of the vehicle entering the reverse towing condition and the degree of correction, wherein the degree of correction is positively correlated with the usage duration.

[0107] In another embodiment of this application, the control module 202 is configured to:

[0108] Determine the first opening degree of the throttle valve corresponding to the initial opening degree, and the second opening degree of the EGR valve;

[0109] The duration of the vehicle being in the reverse towing condition is substituted into the correction relationship in real time to determine the correction degree corresponding to the duration.

[0110] Using the aforementioned degree of correction, the first degree of opening and closing is gradually reduced, and the second degree of opening and closing is gradually increased.

[0111] In another embodiment of this application, the control module 202 is configured to:

[0112] After determining that the engine coolant temperature is lower than or equal to the standard temperature value, the EGR valve of the vehicle is closed, and the throttle valve is adjusted to the third opening degree.

[0113] This application also provides an electronic device for executing the above-described thermal management control method for a catalytic converter. Please refer to... Figure 6 This illustrates a schematic diagram of an electronic device provided by some embodiments of this application. For example... Figure 6 As shown, the electronic device 3 includes: a processor 300, a memory 301, a bus 302, and a communication interface 303. The processor 300, the communication interface 303, and the memory 301 are connected via the bus 302. The memory 301 stores a computer program that can run on the processor 300. When the processor 300 runs the computer program, it executes the thermal management control method for the catalyst provided in any of the foregoing embodiments of this application.

[0114] The memory 301 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this device network element and at least one other network element is achieved through at least one communication interface 303 (which can be wired or wireless), such as the Internet, wide area network, local area network, or metropolitan area network.

[0115] Bus 302 can be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory 301 is used to store programs. After receiving an execution instruction, the processor 300 executes the program. The video transmission method disclosed in any of the foregoing embodiments of this application can be applied to the processor 300, or implemented by the processor 300.

[0116] The processor 300 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of the processor 300 or by instructions in software form. The processor 300 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory 301. The processor 300 reads the information in memory 301 and, in conjunction with its hardware, completes the steps of the above method.

[0117] The electronic device provided in this application embodiment and the thermal management control method for the catalyst provided in this application embodiment are based on the same inventive concept and have the same beneficial effects as the methods they employ, operate, or implement.

[0118] This application also provides a computer-readable storage medium corresponding to the thermal management control method for the catalytic converter provided in the foregoing embodiments. Please refer to... Figure 7 The computer-readable storage medium shown is an optical disc 40, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it executes the video transmission method provided in any of the foregoing embodiments.

[0119] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.

[0120] The computer-readable storage medium provided in the above embodiments of this application and the video transmission method provided in the embodiments of this application are based on the same inventive concept and have the same beneficial effects as the methods adopted, run or implemented by the applications stored therein.

[0121] It should be noted that:

[0122] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of this application may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0123] Similarly, it should be understood that, for the sake of brevity and to aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of this application, various features of this application are sometimes grouped together in a single embodiment, figure, or description thereof. However, this disclosure should not be construed as reflecting a schematic diagram in which the claimed application requires more features than expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of this application.

[0124] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

[0125] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A thermal management control method for a catalytic converter, characterized in that, The method includes: When the vehicle is detected to be in reverse towing mode, the engine coolant temperature of the vehicle is detected. After determining that the engine coolant temperature is higher than the standard temperature value, the vehicle's opening and closing valves are controlled to the initial opening and closing degree, wherein the opening and closing valves include the EGR valve and the throttle valve. During the process of the vehicle being in the reverse towing condition, the current opening and closing degree of the opening and closing valve is corrected in real time using a correction coefficient until the vehicle exits the reverse towing condition, wherein the correction coefficient is determined based on the usage time of the vehicle's catalyst. Before using a correction coefficient to correct the current opening / closing degree of the valve in real time, the method further includes: Obtain the usage time corresponding to the catalytic converter of the vehicle; A correction coefficient matching the usage duration is selected, wherein the correction coefficient is used to reflect the correlation between the duration of the vehicle entering the reverse towing condition and the degree of correction, wherein the degree of correction is positively correlated with the usage duration; After selecting the correction coefficient that matches the usage duration, the method further includes: Determine the first opening degree of the throttle valve corresponding to the initial opening degree, and the second opening degree of the EGR valve; The duration of the vehicle being in the reverse towing condition is substituted into the correction relationship in real time to determine the correction degree corresponding to the duration. Using the aforementioned degree of correction, the first degree of opening and closing is gradually reduced, and the second degree of opening and closing is gradually increased; The correction coefficient is determined by a correction table, which is a curve table that corrects the opening and closing degree of the EGR valve and the throttle valve under the reverse driving condition based on the oxygen storage capacity of the catalyst.

2. The method as described in claim 1, characterized in that, The detection of the vehicle entering the reverse towing mode includes: When it is detected that the accelerator of the vehicle is not pressed, the engine speed is greater than the preset speed value, and the engine load is less than the preset load value, it is determined that the vehicle has entered the reverse towing mode.

3. The method as described in claim 1, characterized in that, After detecting the engine coolant temperature of the vehicle, the method further includes: After determining that the engine coolant temperature is lower than or equal to the standard temperature value, the EGR valve of the vehicle is closed, and the throttle valve is adjusted to the third opening degree.

4. A thermal management control device for a catalyst, used to perform the method according to any one of claims 1-3, characterized in that, include: The detection module is configured to detect the engine coolant temperature of the vehicle when it enters the reverse towing condition; The control module is configured to control the vehicle's opening and closing valves to an initial opening and closing degree after determining that the engine coolant temperature is higher than the standard temperature value, wherein the opening and closing valves include the EGR valve and the throttle valve. The correction module is configured to correct the current opening and closing degree of the opening and closing valve in real time using a correction coefficient while the vehicle is in the towing condition, until the vehicle exits the towing condition, wherein the correction coefficient is determined based on the usage time of the vehicle's catalytic converter.

5. An electronic device, characterized in that, include: Memory, used to store executable instructions; as well as, A processor for running the executable instructions stored in the memory to perform the operation of the thermal management control method for any of the catalysts in claims 1-3.

6. A computing device readable storage medium for storing computing device readable instructions, characterized in that, When the instruction is executed, it performs the operation of the thermal management control method for any of the catalysts described in claims 1-3.

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