Exhaust noise reduction deicing method, device, electronic device, and storage medium

Abstract

This invention provides an exhaust noise reduction and de-icing method, apparatus, electronic device, and storage medium, relating to the field of automotive exhaust technology. The method includes: if an ice blockage occurs, executing an ice-breaking cycle; if the ice blockage has already occurred and multiple ice-breaking attempts fail to eliminate it, executing an enhanced ice-breaking cycle, in which the exhaust temperature is increased and multiple ice-breaking cycles are performed; if the enhanced ice-breaking cycle still fails to initialize the noise reduction valve, the ice-breaking operation is abandoned, and initialization is only attempted once after each startup. The exhaust noise reduction and de-icing method, apparatus, electronic device, and storage medium provided by this invention can more effectively achieve ice breaking and ensure the normal operation of the noise reduction valve.

Description

Technical Field

[0001] This application relates to the field of automotive exhaust technology, and in particular to exhaust noise reduction and de-icing methods, devices, electronic equipment and storage media. Background Technology

[0002] Existing automotive exhaust noise reduction valves initialize immediately after vehicle startup. During initialization, if valve plate jamming is detected, the valve enters ice-breaking mode. However, with the increasing number of PHEV and HEV models, if a hybrid vehicle starts in pure electric mode, the engine will not start immediately. If the noise reduction valve detects jamming and activates ice-breaking mode, the high-frequency knocking sound from the valve breaking ice will be very noticeable due to the lower noise level of the vehicle in pure electric mode, creating an abnormal noise that affects the comfort of the driver and passengers.

[0003] On the other hand, because the engines in hybrid vehicles operate intermittently, condensation is generated each time the engine stops, especially in low ambient temperatures. Therefore, compared to pure gasoline vehicles, more condensation accumulates at the noise reduction valve, making it more prone to ice blockage. The more accumulated condensation, the more severe the ice blockage, and the lower the success rate of current methods that rely on tapping the valve plate to break the ice. Summary of the Invention

[0004] The purpose of this invention is to provide an exhaust noise reduction and de-icing method, device, electronic device, and storage medium that can more effectively achieve ice breaking and ensure the normal operation of the noise reduction valve.

[0005] This invention provides the following solution:

[0006] According to one aspect of the present invention, an exhaust noise reduction and de-icing method is provided, the exhaust noise reduction and de-icing method comprising:

[0007] If an ice blockage occurs, execute the ice-breaking cycle;

[0008] If ice blockage has occurred and multiple attempts to break the ice have failed to eliminate it, then an enhanced ice-breaking cycle is executed. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are performed.

[0009] If the enhanced icebreaking cycle still fails to initialize the noise reduction valve, then abandon the icebreaking operation and only attempt initialization once after each startup.

[0010] Optionally, execute an enhanced icebreaking cycle, including:

[0011] By delaying the engine ignition timing and increasing the target air-fuel ratio, the exhaust temperature is increased;

[0012] The noise reduction valve executes the de-icing strategy in two cycles.

[0013] Optional, also includes:

[0014] After the engine starts for the first time during the driving cycle, read the noise reduction valve sticking fault information;

[0015] If there is no history of noise reduction valve jamming, then read the severe ice blockage fault of the noise reduction valve, and after reading the severe ice blockage history fault, re-initialize the noise reduction valve;

[0016] If there is a history of noise reduction valve jamming, the noise reduction valve should be initialized.

[0017] Optionally, if there is a history of noise reduction valve jamming, the noise reduction valve will be initialized, including:

[0018] After the noise reduction valve is successfully initialized, clear the historical fault of the noise reduction valve being stuck.

[0019] Optionally, if there is a history of noise reduction valve jamming, the noise reduction valve will be initialized, including:

[0020] After the noise reduction valve initialization fails, the noise reduction valve jamming fault is stored, and no more initialization requests are sent to the noise reduction valve.

[0021] Optionally, abandon the icebreaking operation and only attempt initialization once after each startup, including:

[0022] If the noise reduction valve fails to initialize after five ice-breaking cycles during the driving cycle, then the noise reduction valve jamming fault is stored.

[0023] Stop performing any control operations on the noise reduction valve.

[0024] Optionally, the de-icing strategy includes: alternating between fully opening or fully closing the noise reduction valve at first intervals.

[0025] According to a second aspect of the present invention, an exhaust noise reduction and de-icing device is provided, the exhaust noise reduction and de-icing device comprising:

[0026] The first execution module is configured to execute an ice-breaking cycle when an ice blockage fault occurs;

[0027] The second execution module is configured to execute an enhanced ice-breaking cycle when an ice blockage has occurred and multiple ice-breaking cycles have failed to eliminate it. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are executed.

[0028] The third execution module is configured to abandon the ice-breaking operation and only attempt initialization once after each startup if the enhanced ice-breaking cycle still fails to initialize the noise reduction valve.

[0029] According to three aspects of the present invention, an electronic device is provided, the electronic device comprising:

[0030] Processor, communication interface, memory, and communication bus.

[0031] The processor, communication interface, and memory communicate with each other through a communication bus.

[0032] The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the exhaust noise reduction and de-icing method described above.

[0033] According to four aspects of the present invention, a computer-readable storage medium is provided, comprising a computer program that, when executed by a processor, implements the steps of the exhaust noise reduction and de-icing method described above.

[0034] The above solution achieves the following beneficial technical effects:

[0035] 1. By reducing the number of ice-breaking operations and optimizing the timing of ice-breaking, the driving and passenger experience can be improved.

[0036] 2. Achieving more efficient noise reduction valve de-icing by combining mechanical de-icing with increased exhaust temperature.

[0037] 3. By classifying the fault levels, the noise reduction valve jamming fault can be identified, reducing the probability of false alarms. Attached Figure Description

[0038] Figure 1 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0039] Figure 2 This is a flowchart of the second execution operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0040] Figure 3 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0041] Figure 4 This is a flowchart of the initialization operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0042] Figure 5 This is a flowchart of the initialization operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0043] Figure 6 This is a flowchart of the third execution operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0044] Figure 7 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention;

[0045] Figure 8 This is a structural diagram of an exhaust noise reduction and de-icing device provided in one or more embodiments of the present invention;

[0046] Figure 9 This is a structural diagram of an electronic device provided in one or more embodiments of the present invention. Detailed Implementation

[0047] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Figure 1 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 1 The exhaust noise reduction and de-icing method includes the following steps:

[0049] S11, if an ice blockage occurs, execute the ice-breaking cycle.

[0050] S12, if an ice blockage has occurred and multiple ice-breaking cycles fail to eliminate it, then an enhanced ice-breaking cycle is executed. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are executed.

[0051] S13. If the enhanced ice-breaking cycle still fails to initialize the noise reduction valve, then abandon the ice-breaking operation and only attempt initialization once after each startup.

[0052] This invention is primarily applicable to exhaust noise reduction and de-icing strategies for hybrid vehicles. The noise reduction valve control mainly consists of two parts: initialization and position execution. If the initialization stroke is detected to be too small, indicating possible ice blockage, the system will enter the ice-breaking mode. The noise reduction valve breaks ice by controlling the valve plate to rapidly open and close in an attempt to break the frozen ice. This results in a high-frequency knocking sound from the valve plate's movement at the rear of the vehicle during the ice-breaking process, affecting the comfort of the driver and passengers.

[0053] This invention proposes to execute the initialization request only after the engine has started. If an excessively short stroke is detected during initialization, it is determined that ice blockage may exist. Since the engine is running, its noise can effectively mask the abnormal noise generated by the noise reduction valve during de-icing. Furthermore, when severe ice blockage is detected in the exhaust, this invention increases the engine exhaust temperature in conjunction with the active valve de-icing action, enabling more effective ice breaking and ensuring the normal operation of the noise reduction valve. Simultaneously, by optimizing fault types, the probability of false alarms related to noise reduction valve malfunctions is reduced.

[0054] First, let's introduce the de-icing cycle. In this embodiment, the de-icing cycle is performed by the noise reduction valve to remove solid ice that appears at the engine exhaust port.

[0055] The term "circulation" refers to the fact that the noise reduction valve performs the de-icing operation by cyclically opening or closing the valve.

[0056] In this cycle, if the valve was fully opened in the previous step, the next step should be fully closed. Conversely, if the valve was fully closed in the previous step, the next step should be fully open.

[0057] In addition, a certain time interval is required between fully open and fully closed operations. Generally speaking, there is a fixed time interval between fully open and fully closed operations. The main consideration in setting the time interval is to facilitate the switching of the valve between two different operating conditions.

[0058] In this embodiment, the actual operating conditions are divided into three different levels based on the situations encountered during execution. Different de-icing strategies are then executed according to each operating condition level.

[0059] The first level is a common ice blockage fault. In this case, a normal de-icing cycle is executed. The ice blockage fault is eliminated through the execution of the normal de-icing cycle.

[0060] In the first level, the noise reduction valve repeatedly switches between fully open and fully closed states to eliminate ice blockage.

[0061] In the first level, there may be situations where the ice blockage is repeatedly de-iced, but the ice blockage persists despite multiple de-icing operations. This indicates that the current de-icing measures are insufficient to eliminate the ice blockage. Therefore, a second level for eliminating ice blockages is introduced.

[0062] The condition for entering the second level is that the de-icing cycle is executed multiple times, but the ice blockage fault is not eliminated by the multiple executions of the cycle.

[0063] In the second level, a more powerful de-icing strategy is implemented.

[0064] First, the exhaust temperature is actively increased. By increasing the exhaust temperature, the temperature near the exhaust port is raised, helping to melt the ice near the exhaust port.

[0065] Specifically, this is achieved by appropriately reducing the target air-fuel ratio or adjusting the engine's ignition angle, thereby increasing the exhaust temperature.

[0066] The ice blockage encountered in the second stage is called severe ice blockage. To deal with severe ice blockage, in addition to increasing the exhaust temperature, mechanical de-icing is also required.

[0067] In dealing with severe ice blockage, the mechanical de-icing strategy employed is to perform multiple de-icing cycles.

[0068] The de-icing strategy used in the second stage mentioned above, which involves increasing the exhaust temperature and performing multiple de-icing cycles, is called the enhanced de-icing strategy.

[0069] By enhancing the execution of the de-icing cycle, ice blockage near the exhaust port can be eliminated more easily.

[0070] Of course, there are also ice blockage faults that cannot be eliminated even with enhanced de-icing strategies. In that case, we move on to the third level of de-icing strategies.

[0071] The third level of fault is called a jamming fault.

[0072] In the third level, the noise reduction valve no longer performs any de-icing cycle. It only attempts initialization once after each startup.

[0073] Figure 2 This is a flowchart of the second execution operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 2 Execute an enhanced icebreaking cycle, including:

[0074] S21 increases exhaust temperature by delaying engine ignition angle and increasing target air-fuel ratio.

[0075] S22, the noise reduction valve executes the de-icing strategy twice.

[0076] If the normal ice-breaking cycle fails to resolve the ice blockage issue, an enhanced ice-breaking cycle needs to be initiated.

[0077] It's called an enhanced ice-breaking cycle because it combines thermal and mechanical ice-breaking methods. This ice-breaking cycle, which uses two different principles in combination, is called an enhanced ice-breaking cycle.

[0078] In enhancing the ice-breaking cycle, the main methods to increase exhaust temperature include: delaying the engine ignition thrust angle and increasing the target air-fuel ratio.

[0079] Increasing the target air-fuel ratio increases the heat contained in the exhaust gas, thereby increasing the exhaust temperature.

[0080] Another method is to delay the engine ignition timing, which can also achieve the goal of increasing the exhaust port temperature.

[0081] In addition to the aforementioned thermodynamic methods, enhanced ice-breaking cycles also require the integration of mechanical ice-breaking techniques. Enhanced ice-breaking cycles involve executing multiple ice-breaking cycles. One ice-breaking cycle refers to the noise-reducing valve changing from fully open to fully closed and back to fully open. Because the noise-reducing valve's state forms a closed loop, it is called one ice-breaking cycle.

[0082] In an enhanced icebreaking cycle, the above icebreaking cycle needs to be executed multiple times. Typically, an enhanced icebreaking cycle requires two icebreaking cycles.

[0083] Figure 3 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 3 The exhaust noise reduction and de-icing method includes the following steps:

[0084] S31, after the engine starts for the first time during the driving cycle, read the noise reduction valve sticking fault information.

[0085] S32, if there is no historical fault of noise reduction valve jamming, then read the severe ice blockage fault of noise reduction valve, and after reading the severe ice blockage historical fault, initialize the noise reduction valve again.

[0086] S33, if there is a history of noise reduction valve jamming, initialize the noise reduction valve.

[0087] S34, if an ice blockage occurs, execute the ice-breaking cycle.

[0088] S35, if an ice blockage fault has occurred and multiple ice-breaking cycles fail to eliminate it, then an enhanced ice-breaking cycle is executed. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are executed.

[0089] S36. If the enhanced ice-breaking cycle still fails to initialize the noise reduction valve, the ice-breaking operation is abandoned, and initialization is only attempted once after each startup.

[0090] The difference between this implementation and the foregoing embodiments of the present invention is that a series of preprocessing operations are performed before the actual ice-breaking cycle is executed.

[0091] These preprocessing operations mainly include processing the historical fault information stored in the system.

[0092] In this embodiment, historical fault information mainly falls into two categories: one is historical storage stagnation faults, and the other is historical storage severe ice blockage faults. Ordinary ice blockage faults are not processed in this embodiment because they occur too frequently.

[0093] Specifically, after the engine is started for the first time, the stored historical fault information is read. More specifically, the stored jamming fault information is read first.

[0094] If the system reads and finds historical noise reduction valve jamming faults, it means that the engine has previously experienced a jamming fault. In this case, an initialization operation is performed on the noise reduction valve.

[0095] If no history of noise reduction valve jamming faults is found in the system, then further read for severe ice blockage faults.

[0096] If a serious ice blockage fault is found in the system after a read operation, the noise reduction valve also needs to be initialized.

[0097] Figure 4 This is a flowchart of the initialization operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 4 If there is a history of noise reduction valve jamming, the noise reduction valve should be initialized, including the following steps:

[0098] S41, after the noise reduction valve is successfully initialized, clear the historical fault of the noise reduction valve jamming.

[0099] The initialization process resets all operating states of the noise reduction valve. After initialization, the states of its components and their interrelationships should return to their original factory state.

[0100] Based on the above basic understanding of the initialization operation, it is necessary to clear the historical jamming faults originally stored in the noise reduction valve during the initialization process. After the clearing operation, the historical jamming fault information originally stored inside the noise reduction valve is erased. The system no longer stores any historical noise reduction valve jamming faults.

[0101] Methods for erasing historical stuck faults include erasing the original stored records or erasing the stored data in the entire storage area.

[0102] Figure 5 This is a flowchart of the initialization operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 5 If there is a history of noise reduction valve jamming, the noise reduction valve should be initialized, including:

[0103] S51, after the noise reduction valve is successfully initialized, clear the historical fault of the noise reduction valve jamming.

[0104] S52, after the noise reduction valve initialization fails, the noise reduction valve jamming fault is stored and no more initialization requests are sent to the noise reduction valve.

[0105] The foregoing embodiments of the present invention only describe the case of successful initialization. This embodiment differs from the foregoing embodiments in that it considers not only the case of successful initialization but also the case of failed initialization.

[0106] If the initialization operation is successful, the stored historical jamming faults of the noise reduction valve are cleared. If the initialization operation fails, the currently occurring jamming fault needs to be stored. Storing the faults that have occurred is beneficial for verifying the historical state of the noise reduction valve when it is restarted, thus ensuring the normal operation of the noise reduction valve.

[0107] Furthermore, if initialization fails, no further initialization requests will be sent to the noise reduction valve. In other words, invalid requests will not be sent repeatedly.

[0108] Figure 6 This is a flowchart of the third execution operation in the exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 6 Instead of breaking the ice, initialize only once after each startup, including the following steps:

[0109] S61, if the noise reduction valve fails to initialize after five ice-breaking cycles during the driving cycle, then the noise reduction valve jamming fault is stored.

[0110] S62, stop any control operation on the noise reduction valve.

[0111] This embodiment focuses on explaining how to handle the problem of a stuck noise reduction valve.

[0112] First, it is necessary to clarify under what circumstances a malfunction constitutes a noise reduction valve jamming malfunction.

[0113] In this embodiment, if the noise reduction valve fails to initialize after five ice-breaking processes during a driving cycle, it is determined that the noise reduction valve has a stuck fault.

[0114] After determining that a noise reduction valve jamming fault has occurred, the circumstances of the jamming fault need to be stored. Specifically, at least the fault type parameter, that is, the type parameter corresponding to the jamming fault, needs to be stored. Secondly, the fault time when this type of fault occurred needs to be stored.

[0115] If a jamming fault occurs, all control operations on the noise reduction valve must be stopped.

[0116] Figure 7 This is a flowchart of an exhaust noise reduction and de-icing method provided in one or more embodiments of the present invention. See also Figure 7 The exhaust noise reduction and de-icing method includes the following steps:

[0117] S701, the first engine start within the driving cycle.

[0118] S702, read the noise reduction valve jamming fault information. If there is no historical noise reduction valve jamming fault, execute S703. If there is a historical noise reduction valve jamming fault, execute S730.

[0119] S703, read the severe ice blockage fault of the noise reduction valve. If there is a history of severe ice blockage fault, execute S704. If there is no history of severe ice blockage fault, execute S719.

[0120] S704 increases exhaust temperature by delaying the engine ignition angle and increasing the target air-fuel ratio.

[0121] S705, engine stopped.

[0122] S706, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S707. If the noise reduction valve initialization succeeds, execute S717.

[0123] S707, storage noise reduction valve severely ice blockage fault.

[0124] S708, the engine restarts during the driving cycle.

[0125] S709, the noise reduction valve implements the de-icing strategy.

[0126] S710, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S711. If the noise reduction valve initialization succeeds, execute S717.

[0127] The S711 increases exhaust temperature by delaying the engine ignition angle and increasing the target air-fuel ratio.

[0128] S712, the noise reduction valve executes a two-cycle de-icing strategy.

[0129] S713, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S708. If the noise reduction valve initialization succeeds, execute S717.

[0130] S714, during the driving cycle, the noise reduction valve failed to initialize after five ice-breaking attempts, and S709 and S715 were executed.

[0131] S715, storage noise reduction valve stuck fault.

[0132] S716, stop controlling the noise reduction valve.

[0133] S717, clearing severe ice blockage fault in noise reduction valve.

[0134] S718, the noise reduction valve is operating normally.

[0135] S719, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S720. If the noise reduction valve initialization succeeds, execute S729.

[0136] S720, the noise reduction valve implements the de-icing strategy.

[0137] S721, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S722. If the noise reduction valve initialization succeeds, execute S733.

[0138] S722, storage noise reduction valve ice blockage fault.

[0139] S723, the next start-up within the driving cycle.

[0140] S724, Noise reduction valve initialization. If the noise reduction valve initialization fails, execute S720. If the noise reduction valve initialization succeeds, execute S728.

[0141] S725, during the driving cycle, the noise reduction valve failed to initialize after five ice-breaking attempts, so S726 and S720 were executed.

[0142] S726, severe ice blockage fault in storage noise reduction valve.

[0143] S727, Stop controlling the noise reduction valve.

[0144] S728, clear the ice blockage fault in the noise reduction valve.

[0145] S729, the noise reduction valve is operating normally.

[0146] S730, noise reduction valve initialization. If initialization fails, execute S731; if initialization succeeds, execute S733.

[0147] S731, storage noise reduction valve stuck fault.

[0148] S732 no longer sends initialization requests to the noise reduction valve.

[0149] S733, clear historical faults related to noise reduction valve sticking.

[0150] Figure 8 This is a structural diagram of an exhaust noise reduction and de-icing device provided in one or more embodiments of the present invention. See also... Figure 8 The exhaust noise reduction and de-icing device includes:

[0151] The first execution module 801 is configured to execute an ice-breaking cycle when an ice blockage fault occurs.

[0152] The second execution module 802 is configured to execute an enhanced ice-breaking cycle when an ice blockage fault has occurred and multiple ice-breaking cycles still cannot eliminate it. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are executed.

[0153] The third execution module 803 is configured to abandon the ice-breaking operation and only attempt initialization once after each startup if the enhanced ice-breaking cycle still fails to enable the noise reduction valve to complete initialization.

[0154] It is worth noting that although only some basic functional modules are disclosed in the embodiments of this invention, it does not mean that the composition of this system is limited to the above-mentioned basic functional modules. On the contrary, what this embodiment intends to express is that, based on the above-mentioned basic functional modules, those skilled in the art can arbitrarily add one or more functional modules in combination with existing technology to form an infinite number of embodiments or technical solutions. That is to say, this system is open rather than closed. The fact that this embodiment only discloses a few basic functional modules should not be considered as the scope of protection of the claims of this invention being limited to the disclosed basic functional modules. At the same time, for the convenience of description, the above device is described separately according to its functions as various units and modules. Of course, in implementing this invention, the functions of each unit and module can be implemented in one or more software and / or hardware.

[0155] like Figure 9 As shown, the present invention also provides an electronic device, including: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the steps of the exhaust noise reduction and de-icing method.

[0156] Figure 9 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. For example... Figure 9 The structure shown in this embodiment of the invention includes an electronic device comprising one or more processors 910 and a memory 920; the processors 910 in this electronic device may be one or more. Figure 9 Taking a processor 910 as an example; the memory 920 is used to store one or more programs; the one or more programs are executed by the one or more processors 910, so that the one or more processors 910 implement the exhaust noise reduction and de-icing method as described in any one of the embodiments of the present invention.

[0157] The electronic device may also include an input device 930 and an output device 940.

[0158] The processor 910, memory 920, input device 930, and output device 940 in this electronic device can be connected via a bus or other means. Figure 9 Taking the example of a connection between China and Israel via a bus.

[0159] The memory 920 in this electronic device serves as a computer-readable storage medium, capable of storing one or more programs. These programs can be software programs, computer-executable programs, or modules, such as the program instructions / modules corresponding to the exhaust noise reduction and de-icing method provided in this embodiment of the invention. The processor 910 executes various functional applications and data processing of the electronic device by running the software programs, instructions, and modules stored in the memory 920, thereby implementing the exhaust noise reduction and de-icing method described in the above embodiment.

[0160] The memory 920 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the electronic device. Furthermore, the memory 920 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 920 may further include memory remotely located relative to the processor 910, which can be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0161] Input device 930 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the electronic device. Output device 940 may include display devices such as a display screen.

[0162] The present invention also provides a computer-readable storage medium, comprising: storing a computer program executable by a vehicle, which, when the computer program is run on the vehicle, causes the vehicle to perform the steps of the exhaust noise reduction and de-icing method.

[0163] Specifically, the computer storage medium in this embodiment of the invention can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. For example, a computer-readable storage medium can be—but is not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0164] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for exhaust noise reduction and de-icing, characterized in that, The exhaust noise reduction and de-icing method includes: If an ice blockage occurs, execute the ice-breaking cycle; If ice blockage has occurred and multiple attempts to break the ice have failed to eliminate it, then an enhanced ice-breaking cycle is executed. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are performed. If the enhanced icebreaking cycle still fails to initialize the noise reduction valve, then abandon the icebreaking operation and only attempt initialization once after each startup.

2. The method according to claim 1, characterized in that, Execute an enhanced icebreaking cycle, including: By delaying the engine ignition timing and increasing the target air-fuel ratio, the exhaust temperature is increased; The noise reduction valve executes the de-icing strategy in two cycles.

3. The method according to claim 1, characterized in that, Also includes: After the engine starts for the first time during the driving cycle, read the noise reduction valve sticking fault information; If there is no history of noise reduction valve jamming, then read the severe ice blockage fault of the noise reduction valve, and after reading the severe ice blockage history fault, re-initialize the noise reduction valve; If there is a history of noise reduction valve jamming, the noise reduction valve should be initialized.

4. The method according to claim 3, characterized in that, If there is a history of noise reduction valve jamming, the noise reduction valve should be initialized, including: After the noise reduction valve is successfully initialized, clear the historical fault of the noise reduction valve being stuck.

5. The method according to claim 3, characterized in that, If there is a history of noise reduction valve jamming, the noise reduction valve will be initialized, including: After the noise reduction valve initialization fails, the noise reduction valve jamming fault is stored, and no more initialization requests are sent to the noise reduction valve.

6. The method according to claim 1, characterized in that, Abandon the icebreaking operation and only attempt initialization once after each startup, including: If the noise reduction valve fails to initialize after five ice-breaking cycles during the driving cycle, then the noise reduction valve jamming fault is stored. Stop performing any control operations on the noise reduction valve.

7. The method according to any one of claims 1 to 6, characterized in that, The de-icing strategy includes: alternating between fully opening or fully closing the noise reduction valve at the first interval.

8. An exhaust noise reduction and de-icing device, characterized in that, The exhaust noise reduction and de-icing device includes: The first execution module is configured to execute an ice-breaking cycle when an ice blockage fault occurs; The second execution module is configured to execute an enhanced ice-breaking cycle when an ice blockage has occurred and multiple ice-breaking cycles have failed to eliminate it. In the enhanced ice-breaking cycle, the exhaust temperature is increased and multiple ice-breaking cycles are executed. The third execution module is configured to abandon the ice-breaking operation and only attempt initialization once after each startup if the enhanced ice-breaking cycle still fails to initialize the noise reduction valve.

9. An electronic device, characterized in that, The electronic device includes: Processor, communication interface, memory, and communication bus. The processor, communication interface, and memory communicate with each other through a communication bus. The memory stores a computer program that, when executed by the processor, causes the processor to perform the steps of the exhaust noise reduction and de-icing method according to any one of claims 1 to 7.

10. A computer-readable storage medium comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the exhaust noise reduction and de-icing method according to any one of claims 1 to 7.

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