A vehicle tail gas temperature control processing method, device, equipment and storage medium

Abstract

This invention discloses a method, apparatus, device, and storage medium for temperature control of vehicle exhaust gases. The method includes: acquiring vehicle operating parameters of a target vehicle; determining vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters; determining the target exhaust gas temperature required for exhaust gas treatment of the target vehicle based on the vehicle operating condition information and a pre-constructed operating condition temperature lookup table; and performing temperature control treatment on the exhaust gas of the target vehicle using an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, thereby increasing the exhaust gas temperature, improving exhaust gas conversion efficiency, and reducing fuel consumption and pollutant emissions.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas treatment technology, and in particular to a method, apparatus, equipment and storage medium for temperature control treatment of vehicle exhaust gases. Background Technology

[0002] With the increasing severity of atmospheric environmental problems, exhaust gas treatment is of paramount importance, and therefore the conversion efficiency of exhaust gas treatment has become a key focus.

[0003] Research has shown that increasing exhaust gas temperature helps improve exhaust gas conversion efficiency. Current methods mainly include using intake and exhaust throttle valves to reduce intake air volume, increasing fuel injection after injection, and adjusting the opening of the turbocharger wastegate.

[0004] However, increasing exhaust temperature through traditional pneumatic actuators or hydraulic control methods requires sacrificing fuel consumption. Furthermore, due to response speed issues, it is difficult to quickly reach the desired temperature target. In addition, the warming effect is not obvious during vehicle start-up and warm-up, which can also weaken the conversion effect and increase pollutant emissions. Summary of the Invention

[0005] This invention provides a method, apparatus, device, and storage medium for controlling the temperature of vehicle exhaust gases, thereby increasing exhaust gas temperature, improving exhaust gas conversion efficiency, and reducing fuel consumption and pollutant emissions.

[0006] According to one aspect of the present invention, a method for temperature control of vehicle exhaust gas is provided. The method includes: acquiring vehicle operating parameters of a target vehicle; determining vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters; determining a target exhaust gas temperature required for exhaust gas treatment of the target vehicle based on the vehicle operating condition information and a pre-constructed operating condition temperature comparison table; and performing temperature control treatment on the exhaust gas of the target vehicle using an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature.

[0007] According to another aspect of the present invention, a vehicle exhaust temperature control device is provided. The device includes:

[0008] The vehicle operating parameter acquisition module is used to acquire the vehicle operating parameters of the target vehicle.

[0009] The vehicle operating condition information determination module is used to determine the vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters.

[0010] The target exhaust gas temperature determination module is used to determine the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment based on the vehicle operating condition information and a pre-built operating condition temperature comparison table.

[0011] The vehicle exhaust temperature control module is used to perform temperature control on the exhaust gas of the target vehicle through an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature.

[0012] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0013] At least one processor; and

[0014] A memory communicatively connected to the at least one processor; wherein,

[0015] The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the vehicle exhaust temperature control method according to any embodiment of the present invention.

[0016] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the vehicle exhaust temperature control processing method according to any embodiment of the present invention.

[0017] The technical solution of this invention, by acquiring the vehicle operating parameters of the target vehicle, can determine various operational data information of the target vehicle, and determine the corresponding vehicle operating condition information of the target vehicle through multiple vehicle operating parameters. Based on the vehicle operating condition information and a pre-constructed operating condition temperature comparison table, the target exhaust gas temperature required for exhaust gas treatment of the target vehicle is determined. Based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, the exhaust gas of the target vehicle is temperature-controlled using an electric heating device. Temperature control of the exhaust gas using an electric heating device can directly convert the vehicle battery's electrical energy into heat energy under any operating condition of the target vehicle, increasing the exhaust gas temperature and facilitating rapid ignition during exhaust gas aftertreatment, thereby improving conversion efficiency. Simultaneously, it can reduce CO and HC generated during starting and warm-up. The electric heating device offers more precise and efficient energy control, reducing fuel consumption and CO2 emissions. Furthermore, it can appropriately reduce the amount of precious metal coating on the exhaust gas aftertreatment system, lowering the cost of exhaust gas conversion.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a flowchart of a vehicle exhaust temperature control method according to Embodiment 1 of the present invention;

[0021] Figure 2 This is a flowchart of a vehicle exhaust temperature control method according to Embodiment 2 of the present invention;

[0022] Figure 3 This is a structural diagram of the vehicle exhaust temperature control device provided in Embodiment 3 of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of an electronic device that implements the vehicle exhaust temperature control processing method according to an embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] Example 1

[0027] Figure 1This document provides a flowchart of a vehicle exhaust temperature control method according to Embodiment 1 of the present invention. This embodiment is applicable to situations involving temperature control of exhaust gases from gasoline-powered vehicles, particularly for increasing the exhaust gas temperature. This method can be executed by a vehicle exhaust temperature control device, which can be implemented in hardware and / or software and can be configured in an electronic device. Figure 1 As shown, the method includes:

[0028] S101. Obtain the vehicle operating parameters of the target vehicle.

[0029] The target vehicle can refer to the vehicle whose exhaust gas needs to be treated. The acquired vehicle operating parameters may include, but are not limited to, at least one of the following: fuel injection quantity, engine speed, current exhaust gas temperature, remaining battery charge, coolant temperature, ambient temperature, and fuel pump pressure. Among these, the current exhaust gas temperature can refer to the exhaust gas discharged from the target vehicle's engine that has not yet entered the exhaust gas after-treatment system, i.e., the exhaust gas to be converted and treated.

[0030] Vehicle operating parameters can be obtained by connecting a mobile device to the vehicle's OBD interface (On-Board-Diagnostic), or by using conventional technologies such as adding wireless communication sensors, which will not be elaborated on here.

[0031] S102. Based on the vehicle operating parameters, determine the vehicle operating condition information corresponding to the target vehicle.

[0032] The vehicle operating condition information may include at least one of the following: not started, braking, coasting, idling, and normal driving. Specifically, the acquired vehicle operating parameters can be compared with pre-defined vehicle operating indicators to distinguish the current vehicle operating condition of the target vehicle.

[0033] For example, determining the vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters includes at least one of the following operations: determining that the target vehicle is in an unstarted state when the engine speed is zero; determining that the target vehicle is in a braking or coasting state when the fuel injection quantity is zero; determining that the target vehicle is in an idling state when the fuel injection quantity is not zero and the engine speed is lower than or equal to a preset speed; and determining that the target vehicle is in a normal driving state when the fuel injection quantity is not zero and the engine speed is higher than a preset speed.

[0034] Specifically, the current operating condition of the target vehicle is determined based on its engine speed and / or fuel injection quantity during operation. For example, when the engine speed is zero, it indicates that the target vehicle is not running. When the fuel injection quantity is zero, it indicates that the target vehicle is braking or coasting. When the fuel injection quantity is not zero and the engine speed is lower than or equal to a preset speed, it indicates that the target vehicle is idling. When the fuel injection quantity is not zero and the engine speed is higher than a preset speed, it indicates that the target vehicle is in normal driving mode. The preset speed can be the idle speed of a conventional vehicle, or it can be specifically set according to actual environmental conditions or needs.

[0035] S103. Based on the vehicle operating condition information and the pre-built operating condition temperature comparison table, determine the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment.

[0036] The target exhaust gas temperature refers to the optimal temperature for vehicle exhaust gas conversion treatment. When pursuing the highest conversion efficiency, the target exhaust gas temperature can be the temperature corresponding to the optimal conversion efficiency; when pursuing the highest conversion effect, the target exhaust gas temperature can be the temperature corresponding to the optimal conversion effect. The target exhaust gas temperature can be obtained through extensive conversion experiments or through theoretical reasoning. The operating condition temperature reference table is a pre-defined table that records the optimal exhaust gas conversion temperature for the target vehicle under different operating conditions.

[0037] Specifically, the determined vehicle operating condition information is compared and matched with the operating condition temperature comparison table, and the temperature information that matches the vehicle operating condition information is determined and set as the target exhaust gas temperature.

[0038] For example, the operating temperature comparison table can also be a map based on engine speed and fuel injection quantity, and may also include parameters such as coolant temperature, ambient temperature, and pressure. This invention can also directly determine the target exhaust gas temperature corresponding to the target vehicle based on engine speed and fuel injection quantity.

[0039] S104. Based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, the exhaust gas of the target vehicle is subjected to temperature control treatment through an electric heating device.

[0040] Specifically, based on vehicle operating condition information and current exhaust gas temperature, an exhaust gas treatment strategy for the target vehicle is determined. According to the exhaust gas treatment strategy, either no heating treatment is applied to the vehicle exhaust gas, or the vehicle exhaust gas is heated to the target exhaust gas temperature using an electric heating device.

[0041] For example, the step of temperature control treatment of the exhaust gas of the target vehicle using an electric heating device includes: determining the exhaust gas temperature difference between the current exhaust gas temperature and the target exhaust gas temperature; determining the heating power corresponding to the temperature control treatment based on the exhaust gas temperature difference, the specific heat capacity of the exhaust gas of the target vehicle, the exhaust gas mass flow rate, and the heating efficiency of the electric heating device; and performing temperature control treatment on the exhaust gas of the target vehicle using the electric heating device based on the heating power corresponding to the temperature control treatment.

[0042] For example, the heating power corresponding to the electric heating device can be determined based on the exhaust gas temperature difference, the specific heat capacity of the exhaust gas of the target vehicle, the exhaust gas mass flow rate, and the heating efficiency of the electric heating device in the following manner:

[0043]

[0044] Among them, C pair It can represent the specific heat capacity of exhaust gas; m exh It can represent the exhaust gas mass flow rate; (T) target -T exh ) can represent the temperature difference of the exhaust gas; η heater It can represent heating efficiency, which is an inherent characteristic of electric heating devices.

[0045] Specifically, the temperature difference between the target temperature and the exhaust temperature is calculated. Based on the temperature difference, the specific heat capacity of the exhaust gas of the target vehicle, the mass flow rate of the exhaust gas, and the heating efficiency of the electric heating device, the heating power corresponding to the temperature control is determined. The heating power of the electric heating device is adjusted by a PID controller so that the electric heating device performs temperature control on the exhaust gas of the target vehicle based on the heating power corresponding to the temperature control, thereby achieving closed-loop control of the vehicle exhaust gas.

[0046] For example, closed-loop control can be implemented as follows: When the exhaust gas temperature difference is 50°C, the electric heating device heats the vehicle exhaust gas at a power of 3kW. As the temperature difference decreases, the heating power is gradually reduced. For instance, when the exhaust gas temperature difference decreases to 30°C, the electric heating device's power is reduced to 2kW to avoid overshooting due to excessively rapid temperature rise. Simultaneously, the battery load is reduced, improving the electric heating device's sustained heating capacity for the vehicle exhaust gas.

[0047] The technical solution of this invention, by acquiring the vehicle operating parameters of the target vehicle, can determine various operational data information of the target vehicle, and determine the corresponding vehicle operating condition information of the target vehicle through multiple vehicle operating parameters. Based on the vehicle operating condition information and a pre-constructed operating condition temperature comparison table, the target exhaust gas temperature required for exhaust gas treatment of the target vehicle is determined. Based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, the exhaust gas of the target vehicle is temperature-controlled using an electric heating device. Temperature control of the exhaust gas using an electric heating device can directly convert the vehicle battery's electrical energy into heat energy under any operating condition of the target vehicle, increasing the exhaust gas temperature and facilitating rapid ignition during exhaust gas aftertreatment, thereby improving conversion efficiency. Simultaneously, it can reduce CO and HC generated during starting and warm-up. The electric heating device offers more precise and efficient energy control, reducing fuel consumption and CO2 emissions. Furthermore, it can appropriately reduce the amount of precious metal coating on the exhaust gas aftertreatment system, lowering the cost of exhaust gas conversion.

[0048] Example 2

[0049] Figure 2 This is a flowchart of a vehicle exhaust temperature control method according to Embodiment 2 of the present invention. Based on the above embodiments, this embodiment further refines the step of "performing temperature control processing of the exhaust gas of the target vehicle through an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature." Figure 2 As shown, the method includes:

[0050] S201. Obtain the vehicle operating parameters of the target vehicle.

[0051] S202. Based on the vehicle operating parameters, determine the vehicle operating condition information corresponding to the target vehicle.

[0052] S203. Based on the vehicle operating condition information and a pre-built operating condition temperature comparison table, determine the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment.

[0053] S204. When the target vehicle is in a braking or coasting state, the exhaust gas of the target vehicle is subjected to temperature control treatment by an electric heating device based on the current exhaust gas temperature, the first preset temperature and the target exhaust gas temperature.

[0054] The first preset temperature can be set in advance based on actual conditions or needs, and no specific limitations are imposed here.

[0055] Specifically, when the target vehicle is in a braking or coasting state, a vehicle exhaust treatment strategy is determined based on the comparison between the current exhaust gas temperature and a first preset temperature, and then the exhaust gas of the target vehicle is subjected to temperature control treatment based on the exhaust gas treatment strategy.

[0056] For example, when the target vehicle is in a braking or coasting state, the step of temperature-controlling the exhaust gas of the target vehicle using an electric heating device based on the current exhaust gas temperature, a first preset temperature, and the target exhaust gas temperature includes:

[0057] If the target vehicle is in a braking or coasting state, and the current exhaust gas temperature is lower than the first preset temperature, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

[0058] Specifically, when the target vehicle is braking or coasting, if the current exhaust gas temperature is lower than a first preset temperature, the electric heating device heats the exhaust gas of the target vehicle to the target exhaust gas temperature. If the current exhaust gas temperature is greater than or equal to the first preset temperature, no heating treatment is required for the exhaust gas of the target vehicle.

[0059] S205. When the target vehicle is idling, the exhaust gas of the target vehicle is subjected to temperature control treatment by an electric heating device based on the idling time of the target vehicle, the idling time threshold, the current exhaust gas temperature, the second preset temperature and the target exhaust gas temperature.

[0060] The idling duration threshold and the second preset temperature can also be set in advance based on actual conditions or needs. The idling duration threshold can further distinguish whether the target vehicle is in a long idling state or a short idling state, and formulate a more detailed exhaust gas treatment strategy, more accurately control the temperature of vehicle exhaust gas, and reduce the load on the engine and vehicle battery.

[0061] Specifically, when the target vehicle is idling, based on the comparison between the current exhaust gas temperature and the second preset temperature, and the comparison between the idling time threshold and the idling time, it is determined whether it is in a long idling state or a short idling state, and further determines the exhaust gas treatment strategy. Then, based on the exhaust gas treatment strategy, the exhaust gas of the target vehicle is subjected to temperature control treatment.

[0062] For example, when the target vehicle is idling, the step of performing temperature control treatment on the exhaust gas of the target vehicle using an electric heating device based on the idling duration of the target vehicle, an idling duration threshold, the current exhaust gas temperature, a second preset temperature, and the target exhaust gas temperature includes:

[0063] If the target vehicle is idling, and the idling time is less than the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the exhaust gas of the target vehicle is heated to the target exhaust gas temperature by the electric heating device.

[0064] If the idling time is greater than or equal to the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the engine operation strategy of the target vehicle is adjusted so that the exhaust gas of the target vehicle is raised to the target exhaust gas temperature.

[0065] Specifically, when the target vehicle is idling, if the idling time is less than the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, it indicates that the target vehicle is in a short idling state. In this case, the electric heating device heats the exhaust gas of the target vehicle to the target exhaust gas temperature. If the idling time is greater than the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, it indicates that the target vehicle is in a long idling state. In this case, strategies such as adjusting the exhaust throttle valve to reduce the intake air volume, increasing fuel injection after injection, and / or adjusting the turbocharger wastegate opening are used to raise the exhaust gas of the target vehicle to the target exhaust gas temperature, thereby avoiding the impact of prolonged electric heating on engine fuel consumption. If the current exhaust gas temperature is greater than or equal to the second preset temperature, there is no need to heat the exhaust gas of the target vehicle.

[0066] S206. When the target vehicle is in normal driving condition, the exhaust gas of the target vehicle is subjected to temperature control treatment by an electric heating device based on the current exhaust gas temperature, the third preset temperature and the target exhaust gas temperature.

[0067] The third preset temperature can be set in advance based on actual conditions or needs, and no specific limitations are specified here.

[0068] Specifically, when the target vehicle is in normal driving condition, the exhaust gas treatment strategy is determined based on the comparison between the current exhaust gas temperature and the third preset temperature, and then the exhaust gas of the target vehicle is subjected to temperature control treatment based on the exhaust gas treatment strategy.

[0069] For example, when the target vehicle is idling, the step of performing temperature control treatment on the exhaust gas of the target vehicle using an electric heating device based on the idling duration of the target vehicle, an idling duration threshold, the current exhaust gas temperature, a second preset temperature, and the target exhaust gas temperature includes:

[0070] If the current exhaust gas temperature is lower than the third preset temperature when the target vehicle is idling, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

[0071] Specifically, when the target vehicle is idling, if the current exhaust gas temperature is lower than the third preset temperature, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature via an electric heating device. If the current exhaust gas temperature is greater than or equal to the third preset temperature, there is no need to heat the exhaust gas of the target vehicle.

[0072] It should be noted that when the target vehicle is not running, there is no need to heat its exhaust. Secondly, the technical solution of this invention can also calculate and determine the maximum allowable heating time in real time. When the maximum allowable heating time is reached, the heating of the vehicle's exhaust by the electric heating device is stopped to prevent electrical fire hazards caused by low battery power or excessive battery load. For example, the maximum allowable heating time can be obtained by looking up the battery's SOC value in a table, or it can be initially estimated by dividing the available battery power by the heating power.

[0073] The technical solution of this invention, when the target vehicle is in a braking or coasting state, uses an electric heating device to perform temperature control on the exhaust gas of the target vehicle based on the current exhaust gas temperature, a first preset temperature, and the target exhaust gas temperature; when the target vehicle is idling, it uses an electric heating device to perform temperature control on the exhaust gas of the target vehicle based on the idling time, an idling time threshold, the current exhaust gas temperature, a second preset temperature, and the target exhaust gas temperature; and when the target vehicle is in a normal driving state, it uses an electric heating device to perform temperature control on the exhaust gas of the target vehicle based on the current exhaust gas temperature, a third preset temperature, and the target exhaust gas temperature. By distinguishing the operating conditions of the target vehicle in detail and formulating a more detailed exhaust gas treatment strategy based on the operating conditions, more precise temperature control of the vehicle exhaust gas can be achieved based on the exhaust gas treatment strategy, improving the conversion efficiency and effect of vehicle exhaust gas, while reducing the load on the engine and on-board battery.

[0074] Example 3

[0075] Figure 3 This is a schematic diagram of a vehicle exhaust temperature control device provided in Embodiment 3 of the present invention. Figure 3 As shown, the device includes: a vehicle operating parameter acquisition module 301, a vehicle operating condition information determination module 302, a target exhaust gas temperature determination module 303, and a vehicle exhaust gas temperature control processing module 304.

[0076] in,

[0077] The vehicle operating parameter acquisition module 301 is used to acquire the vehicle operating parameters of the target vehicle.

[0078] The vehicle operating condition information determination module 302 is used to determine the vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters.

[0079] The target exhaust gas temperature determination module 303 is used to determine the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment based on the vehicle operating condition information and a pre-built operating condition temperature comparison table.

[0080] The vehicle exhaust temperature control processing module 304 is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature.

[0081] The technical solution of this invention, by acquiring the vehicle operating parameters of the target vehicle, can determine various operational data information of the target vehicle, and determine the corresponding vehicle operating condition information of the target vehicle through multiple vehicle operating parameters. Based on the vehicle operating condition information and a pre-constructed operating condition temperature comparison table, the target exhaust gas temperature required for exhaust gas treatment of the target vehicle is determined. Based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, the exhaust gas of the target vehicle is temperature-controlled using an electric heating device. Temperature control of the exhaust gas using an electric heating device can directly convert the vehicle battery's electrical energy into heat energy under any operating condition of the target vehicle, increasing the exhaust gas temperature and facilitating rapid ignition during exhaust gas aftertreatment, thereby improving conversion efficiency. Simultaneously, it can reduce CO and HC generated during starting and warm-up. The electric heating device offers more precise and efficient energy control, reducing fuel consumption and CO2 emissions. Furthermore, it can appropriately reduce the amount of precious metal coating on the exhaust gas aftertreatment system, lowering the cost of exhaust gas conversion.

[0082] Optionally, the vehicle operating parameters include at least one of the following: fuel injection quantity, engine speed, current exhaust gas temperature, remaining battery charge, coolant temperature, ambient temperature, and fuel pump pressure; the vehicle operating condition information includes at least one of the following: not started state, braking state, coasting state, idling state, and normal driving state.

[0083] The vehicle operating condition information determination module 302 is specifically used for:

[0084] When the engine speed is zero, the target vehicle is determined to be in a non-started state;

[0085] When the fuel injection quantity is zero, the target vehicle is determined to be in a braking state or a coasting state.

[0086] When the fuel injection quantity is non-zero and the engine speed is lower than or equal to the preset speed, the target vehicle is determined to be in an idling state.

[0087] When the fuel injection quantity is non-zero and the engine speed is higher than the preset speed, the target vehicle is determined to be in a normal driving state.

[0088] Optionally, the vehicle exhaust temperature control processing module 304 includes: a first exhaust temperature control processing unit, a second exhaust temperature control processing unit, and a third exhaust temperature control processing unit. Wherein,

[0089] The first exhaust gas temperature control processing unit is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device when the target vehicle is in a braking or coasting state, based on the current exhaust gas temperature, a first preset temperature and the target exhaust gas temperature.

[0090] The second exhaust gas temperature control processing unit is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device when the target vehicle is in an idling state, based on the idling time of the target vehicle, the idling time threshold, the current exhaust gas temperature, the second preset temperature, and the target exhaust gas temperature.

[0091] The third exhaust gas temperature control processing unit is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device, based on the current exhaust gas temperature, the third preset temperature and the target exhaust gas temperature, when the target vehicle is in normal driving condition.

[0092] Optionally, the first tail temperature control processing unit may be specifically used for:

[0093] If the target vehicle is in a braking or coasting state, and the current exhaust gas temperature is lower than the first preset temperature, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

[0094] Optionally, the second tail temperature control processing unit may be specifically used for:

[0095] If the target vehicle is idling, and the idling time is less than the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the exhaust gas of the target vehicle is heated to the target exhaust gas temperature by the electric heating device.

[0096] If the idling time is greater than or equal to the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the engine operation strategy of the target vehicle is adjusted so that the exhaust gas of the target vehicle is raised to the target exhaust gas temperature.

[0097] Optionally, the third tail gas temperature control processing unit can be specifically used for:

[0098] If the current exhaust gas temperature is lower than the third preset temperature when the target vehicle is idling, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

[0099] Optionally, the vehicle exhaust temperature control processing module 304 can be specifically used for:

[0100] Determine the exhaust gas temperature difference between the current exhaust gas temperature and the target exhaust gas temperature;

[0101] Based on the exhaust gas temperature difference, the exhaust gas specific heat capacity of the target vehicle, the exhaust gas mass flow rate, and the heating efficiency of the electric heating device, the heating power corresponding to the temperature control treatment is determined.

[0102] The electric heating device performs temperature control on the exhaust gas of the target vehicle based on the heating power corresponding to the temperature control process.

[0103] The vehicle exhaust temperature control device provided in this embodiment of the invention can execute the vehicle exhaust temperature control method provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0104] Example 4

[0105] Figure 4 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0106] like Figure 4As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0107] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0108] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the method of vehicle exhaust temperature control processing.

[0109] In some embodiments, the method for vehicle exhaust temperature control processing may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or mounted on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for vehicle exhaust temperature control processing described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the method for vehicle exhaust temperature control processing by any other suitable means (e.g., by means of firmware).

[0110] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0111] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0112] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0113] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0114] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0115] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0116] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0117] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling the temperature of vehicle exhaust gases, characterized in that, include: Obtain the vehicle operating parameters of the target vehicle; Based on the vehicle operating parameters, determine the vehicle operating condition information corresponding to the target vehicle; Based on the vehicle operating condition information and the pre-built operating condition temperature comparison table, the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment is determined. Based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature, the exhaust gas of the target vehicle is subjected to temperature control treatment through an electric heating device. The vehicle operating parameters include at least one of the following: fuel injection quantity, engine speed, current exhaust gas temperature, remaining battery charge, coolant temperature, ambient temperature, and fuel pump pressure; the vehicle operating condition information includes at least one of the following: not started state, braking state, coasting state, idling state, and normal driving state. Determining the vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters includes at least one of the following operations: When the engine speed is zero, the target vehicle is determined to be in a non-started state; When the fuel injection quantity is zero, the target vehicle is determined to be in a braking state or a coasting state. When the fuel injection quantity is non-zero and the engine speed is lower than or equal to the preset speed, the target vehicle is determined to be in an idling state. When the fuel injection quantity is non-zero and the engine speed is higher than the preset speed, the target vehicle is determined to be in a normal driving state. The step of controlling the temperature of the target vehicle's exhaust gas using an electric heating device based on the vehicle's operating condition information, the target vehicle's current exhaust gas temperature, and the target exhaust gas temperature includes: When the target vehicle is in a braking or coasting state, the exhaust gas of the target vehicle is temperature controlled by an electric heating device based on the current exhaust gas temperature, the first preset temperature and the target exhaust gas temperature. When the target vehicle is idling, the exhaust gas of the target vehicle is temperature controlled by an electric heating device based on the idling time of the target vehicle, the idling time threshold, the current exhaust gas temperature, the second preset temperature and the target exhaust gas temperature. When the target vehicle is in normal driving condition, the exhaust gas of the target vehicle is temperature controlled by an electric heating device based on the current exhaust gas temperature, the third preset temperature and the target exhaust gas temperature.

2. The method according to claim 1, characterized in that, When the target vehicle is in a braking or coasting state, the method of temperature control treatment of the target vehicle's exhaust gas using an electric heating device, based on the current exhaust gas temperature, a first preset temperature, and the target exhaust gas temperature, includes: If the target vehicle is in a braking or coasting state, and the current exhaust gas temperature is lower than the first preset temperature, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

3. The method according to claim 1, characterized in that, When the target vehicle is idling, the method involves temperature control of the target vehicle's exhaust gas using an electric heating device based on the target vehicle's idling duration, idling duration threshold, current exhaust gas temperature, second preset temperature, and target exhaust gas temperature, including: If the target vehicle is idling, and the idling time is less than the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the exhaust gas of the target vehicle is heated to the target exhaust gas temperature by the electric heating device. If the idling time is greater than or equal to the idling time threshold and the current exhaust gas temperature is less than the second preset temperature, then the engine operation strategy of the target vehicle is adjusted so that the exhaust gas of the target vehicle is raised to the target exhaust gas temperature.

4. The method according to claim 3, characterized in that, When the target vehicle is idling, the method involves temperature control of the target vehicle's exhaust gas using an electric heating device based on the target vehicle's idling duration, idling duration threshold, current exhaust gas temperature, second preset temperature, and target exhaust gas temperature, including: If the current exhaust gas temperature is lower than the third preset temperature when the target vehicle is idling, the exhaust gas of the target vehicle will be heated to the target exhaust gas temperature by the electric heating device.

5. The method according to claim 1, characterized in that, The method of temperature control treatment of the exhaust gas of the target vehicle using an electric heating device includes: Determine the exhaust gas temperature difference between the current exhaust gas temperature and the target exhaust gas temperature; Based on the exhaust gas temperature difference, the exhaust gas specific heat capacity of the target vehicle, the exhaust gas mass flow rate, and the heating efficiency of the electric heating device, the heating power corresponding to the temperature control treatment is determined. The electric heating device performs temperature control on the exhaust gas of the target vehicle based on the heating power corresponding to the temperature control process.

6. A vehicle exhaust temperature control device, characterized in that, include: The vehicle operating parameter acquisition module is used to acquire the vehicle operating parameters of the target vehicle. The vehicle operating condition information determination module is used to determine the vehicle operating condition information corresponding to the target vehicle based on the vehicle operating parameters. The target exhaust gas temperature determination module is used to determine the target exhaust gas temperature required for the target vehicle to perform exhaust gas treatment based on the vehicle operating condition information and a pre-built operating condition temperature comparison table. The vehicle exhaust temperature control module is used to perform temperature control on the exhaust gas of the target vehicle through an electric heating device based on the vehicle operating condition information, the current exhaust gas temperature of the target vehicle, and the target exhaust gas temperature. The vehicle operating parameters include at least one of the following: fuel injection quantity, engine speed, current exhaust gas temperature, remaining battery charge, coolant temperature, ambient temperature, and fuel pump pressure; the vehicle operating condition information includes at least one of the following: not started state, braking state, coasting state, idling state, and normal driving state. The vehicle operating condition information determination module is specifically used for: When the engine speed is zero, the target vehicle is determined to be in a non-started state; When the fuel injection quantity is zero, the target vehicle is determined to be in a braking state or a coasting state. When the fuel injection quantity is non-zero and the engine speed is lower than or equal to the preset speed, the target vehicle is determined to be in an idling state. When the fuel injection quantity is non-zero and the engine speed is higher than the preset speed, the target vehicle is determined to be in a normal driving state. The vehicle exhaust temperature control module includes: a first exhaust temperature control unit, a second exhaust temperature control unit, and a third exhaust temperature control unit, wherein... The first exhaust gas temperature control processing unit is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device when the target vehicle is in a braking state or a coasting state, based on the current exhaust gas temperature, a first preset temperature and the target exhaust gas temperature. The second exhaust gas temperature control processing unit is used to perform temperature control processing on the exhaust gas of the target vehicle through an electric heating device when the target vehicle is in an idling state, based on the idling time of the target vehicle, the idling time threshold, the current exhaust gas temperature, the second preset temperature and the target exhaust gas temperature. The third exhaust gas temperature control unit is used to perform temperature control on the exhaust gas of the target vehicle through an electric heating device, based on the current exhaust gas temperature, the third preset temperature and the target exhaust gas temperature, when the target vehicle is in normal driving condition.

7. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the vehicle exhaust temperature control method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the vehicle exhaust temperature control method according to any one of claims 1-5.

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