Post-processing and regeneration methods, devices, vehicles, electronic equipment, and operating machinery

Abstract

This invention provides an aftertreatment regeneration method, apparatus, vehicle, electronic equipment, and operating machinery, belonging to the field of aftertreatment regeneration. The method includes: receiving a vehicle regeneration command and acquiring upstream and downstream temperatures of the aftertreatment system and engine load; when the time it takes for either the upstream or downstream temperature to reach a first temperature threshold does not meet a first duration threshold, or if a second duration threshold has elapsed and the upstream or downstream temperature still has not reached the first temperature threshold, and the engine load is between a second and first load threshold, controlling a solenoid valve to open, so that alcohol fuel and gasoline fuel participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold. This invention addresses the deficiency in existing technologies where aftertreatment regeneration easily fails when the vehicle is under unstable load, improving the success rate of aftertreatment regeneration.

Description

Technical Field

[0001] This invention relates to the field of post-processing and regeneration technology, and in particular to a post-processing and regeneration method, apparatus, vehicle, electronic equipment, and operating machinery. Background Technology

[0002] To ensure that exhaust emissions meet environmental regulations, engineering vehicles typically incorporate an aftertreatment process before the exhaust tailpipe. During engine operation, unburned particulate matter (PM) continuously accumulates within the aftertreatment system. When PM accumulates to a certain level, it increases exhaust back pressure, significantly reducing engine efficiency. At this point, the PM accumulated in the aftertreatment system needs to be combusted and purified to restore engine efficiency; this process is called aftertreatment regeneration.

[0003] Aftertreatment regeneration is generally divided into on-road regeneration (unstable load condition) and parking regeneration (stable load). In existing technologies, for on-road regeneration, the engine exhaust temperature needs to be increased when the aftertreatment enters the regeneration state to achieve the goal of preventing carbon particles from accumulating in the aftertreatment system. Regeneration is mainly achieved by increasing the load and controlling the intake air volume, engine injection timing, and post-injection fuel to raise the engine exhaust temperature. When the engine exhaust temperature does not meet the regeneration requirements, the aftertreatment will interrupt regeneration. For example, in actual excavator operation, the load is often unstable. For instance, during loading operations, after the excavator is fully loaded with a truck, to save fuel, the operator usually reduces the engine speed to a low idle speed while waiting for the next truck. If, at this time, the engine controller issues a regeneration command or the aftertreatment is in the regeneration state, because the excavator is currently under low load, it is difficult to raise the engine exhaust temperature to the required regeneration threshold simply by controlling the intake air volume, engine injection timing, and post-injection fuel. This will lead to the interruption or failure of aftertreatment regeneration, exacerbating the accumulation of carbon particles within the aftertreatment system. Summary of the Invention

[0004] This invention provides a post-processing regeneration method, apparatus, vehicle, electronic equipment, and operating machinery to address the shortcomings of existing technologies where post-processing regeneration is prone to failure when the vehicle is under unstable load, thereby improving the success rate of post-processing regeneration.

[0005] This invention provides an aftertreatment regeneration method applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank contains alcohol-based fuel; the auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the method includes:

[0006] Receive vehicle regeneration command and obtain upstream temperature of aftertreatment, downstream temperature of aftertreatment and engine load;

[0007] If the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold has elapsed, and the engine load is between the second load threshold and the first load threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0008] Optionally, if the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, including:

[0009] When the downstream temperature of the aftertreatment reaches a second temperature threshold and the engine load reaches a first load threshold for a third duration threshold, the solenoid valve is controlled to close.

[0010] Optionally, if, after a second time threshold, the upstream or downstream temperature of the aftertreatment system still has not reached the first temperature threshold, and the engine load is between the first and second load thresholds, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate together in the aftertreatment regeneration, including:

[0011] When the upstream or downstream temperature of the aftertreatment reaches a first temperature threshold and the engine load reaches a first load threshold for a sustained period of a fourth time threshold, the solenoid valve is controlled to close.

[0012] Optionally, the solenoid valve is kept closed when the time it takes for the upstream or downstream temperature of the post-processing to reach the first temperature threshold meets the first duration threshold.

[0013] Optionally, if the upstream or downstream temperature of the post-processing process still fails to reach the first temperature threshold after the second time threshold has elapsed, and the engine load is less than the second load threshold, the vehicle is controlled to issue a warning to alert the driver that the engine load is too low and post-processing regeneration cannot be performed.

[0014] The present invention also provides an aftertreatment regeneration device, the device being applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank containing alcohol fuel; the auxiliary fuel tank being connected to the vehicle's fuel pump via a pipeline, the pipeline being equipped with a solenoid valve; the device comprising:

[0015] The data acquisition module is used to receive vehicle regeneration commands and acquire the upstream temperature of the aftertreatment system, the downstream temperature of the aftertreatment system, and the engine load.

[0016] The solenoid valve control module is used to control the solenoid valve to open when the time it takes for the upstream or downstream temperature of the aftertreatment to reach a first temperature threshold does not meet a first duration threshold, or when the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold, and the engine load is between a second load threshold and a first load threshold, so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0017] The present invention also provides a vehicle, including a vehicle body and an auxiliary fuel tank;

[0018] The vehicle body includes a fuel pump and a controller;

[0019] The auxiliary fuel tank contains alcohol-based fuel;

[0020] The auxiliary fuel tank is connected to the fuel pump via a pipeline. A solenoid valve is installed in the pipeline and is connected to the controller. The controller is used to receive the vehicle regeneration command and acquire the upstream temperature, downstream temperature, and engine load of the aftertreatment system. If the time it takes for the upstream or downstream temperature of the aftertreatment system to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment system has passed the second duration threshold and still has not reached the first temperature threshold, and the engine load is between the second load threshold and the first load threshold, the controller controls the solenoid valve to open so that the alcohol fuel and fuel oil can participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0021] Optionally, it also includes a temperature sensor for acquiring the upstream and downstream temperatures of the post-processing process and sending the acquired upstream and downstream temperatures to the controller.

[0022] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the post-processing regeneration method.

[0023] The present invention also provides a working machine, including the post-processing regeneration device or the electronic device.

[0024] The aftertreatment regeneration method, apparatus, vehicle, electronic equipment, and operating machinery provided by this invention receive a vehicle regeneration command and acquire the upstream temperature, downstream temperature, and engine load of the aftertreatment system. When the time it takes for the upstream or downstream temperature to reach a first temperature threshold does not meet a first duration threshold, or if a second duration threshold has elapsed and the upstream or downstream temperature still has not reached the first temperature threshold, and the engine load is between a second load threshold and the first load threshold, the solenoid valve is controlled to open, allowing the alcohol fuel and fuel oil to participate in the aftertreatment regeneration together. The second load threshold is less than the first load threshold. In other words, when a vehicle regeneration command is received but the vehicle does not meet the preset regeneration conditions, the solenoid valve can be opened to allow the alcohol fuel to participate in the aftertreatment regeneration, increasing the exhaust temperature and thus preventing regeneration failure or interruption, thereby improving the success rate of aftertreatment regeneration. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a flowchart of the post-processing regeneration method provided by the present invention;

[0027] Figure 2 This is the control logic diagram of the post-processing regeneration method provided by the present invention;

[0028] Figure 3 This is a block diagram of the post-processing regeneration device provided by the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] Existing engineering machinery often experiences regeneration failures, for example:

[0032] 1. When an excavator is loading a truck and idling at low speed while waiting for the dump truck to enter the work area, the engine load rate is at a low level, which can easily lead to post-treatment regeneration failure. 2. When an excavator is used for hoisting or leveling operations, the engine load rate is at a low level, which can easily lead to post-treatment regeneration failure. 3. When an excavator is using its bucket to clear weeds from a river channel, the engine load rate is at a low level, which can easily lead to post-treatment regeneration failure.

[0033] In view of the above situation, the purpose of this invention is to improve the success rate of post-processing regeneration. The following is a summary... Figures 1-3 The present invention describes a post-processing regeneration method, apparatus, vehicle, electronic equipment, and operating machinery.

[0034] Figure 1 This is a flowchart of the post-processing regeneration method provided by the present invention. Figure 2 This is the control logic diagram of the post-processing regeneration method provided by the present invention; such as Figure 1 and Figure 2 As shown, an aftertreatment regeneration method is applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank contains alcohol fuel; the auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the method includes:

[0035] Step 101: Receive the vehicle regeneration command and obtain the upstream temperature of the after-processor, the downstream temperature of the after-processor, and the engine load.

[0036] In one specific embodiment, when the vehicle regeneration command is triggered, the upstream temperature of the aftertreatment is detected by a temperature sensor located at the inlet of the oxidation catalyst, the downstream temperature of the aftertreatment is detected by a temperature sensor located at the outlet of the oxidation catalyst, and the engine load is determined by the engine ECU.

[0037] Step 102: If the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or if the second duration threshold has elapsed and the upstream or downstream temperature of the aftertreatment still has not reached the first temperature threshold, and the engine load is between the second load threshold and the first load threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0038] In a specific embodiment, the first temperature threshold T1 is the conditional temperature at which the oxidation catalyst reacts, which is generally around 280°C. Therefore, when the upstream temperature of the post-treatment reaches the first temperature threshold T1, it is considered that the post-treatment regeneration meets the catalytic conditions. However, in reality, before the post-treatment regeneration, the upstream temperature of the post-treatment will be slightly higher than the downstream temperature of the post-treatment (around 5°C-10°C). Therefore, it is also possible to determine whether the catalytic conditions for post-treatment regeneration are met by judging whether the downstream temperature of the post-treatment reaches the first temperature threshold T1.

[0039] In one specific embodiment, the first duration threshold t1 is the time required for the post-processing regeneration process to complete, which is generally about 30 minutes.

[0040] In one specific embodiment, the alcohol fuel is ethanol gasoline, methanol gasoline, or other alcohol-containing liquid fuel.

[0041] In one specific embodiment, when the time it takes for the upstream or downstream temperature of the aftertreatment to reach a first temperature threshold T1 does not meet a first duration threshold t1, the solenoid valve is controlled to open, so that the alcohol fuel and fuel oil participate together in the aftertreatment regeneration, including:

[0042] When the downstream temperature of the aftertreatment reaches the second temperature threshold T2 and the engine load reaches the first load threshold A for a sustained period of a third duration t3, the solenoid valve is controlled to close.

[0043] In a specific embodiment, the second temperature threshold T2 is the combustion temperature of the post-treatment regeneration, which is generally around 550°C. That is, the first temperature threshold T1 is less than the second temperature threshold T2. Since the downstream temperature of the post-treatment needs to be detected by the temperature sensor at the outlet of the oxidation catalyst after entering the post-treatment regeneration state, that is, the combustion temperature at this time needs to be detected, the downstream temperature of the post-treatment needs to be compared with the second temperature threshold T2.

[0044] In a specific embodiment, the third duration threshold t3 is about 2 minutes. When the downstream temperature of the aftertreatment reaches the second temperature threshold T2 and the engine load reaches the first load threshold A for a period of time t3, it is considered that the aftertreatment regeneration process can be completed normally by the engine without the need for alcohol fuel to participate in the aftertreatment regeneration. The solenoid valve is then closed so that the alcohol fuel no longer participates in combustion.

[0045] In a specific embodiment, the time it takes for the upstream or downstream temperature of the post-processing to reach the first temperature threshold T1 does not meet the first duration threshold t1. This refers to the phenomenon where the upstream or downstream temperature of the post-processing reaches the first temperature threshold T1 and then decreases. This phenomenon corresponds to the situation of post-processing regeneration interruption, specifically including:

[0046] When the upstream or downstream temperature of the after-treatment reaches the first temperature threshold T1, the after-treatment regeneration process will begin. However, after the fifth time threshold t5 (t5 < t1), the downstream temperature drops to a certain temperature T3, T3 = T2 - ΔT (ΔT = 50℃), and after a certain time t6 (t6 = 1 minute), it still has not recovered to the second temperature threshold T2. At this point, the temperature requirement for after-treatment regeneration is no longer met, and the after-treatment regeneration process will be interrupted. Since the temperature difference between the upstream and downstream of the after-treatment is relatively large after the engine enters the regeneration process, with the upstream temperature being around 300℃ and the downstream temperature around 550℃, the temperature judgment for the interruption of after-treatment regeneration is the second temperature threshold T2.

[0047] In a specific embodiment, when the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold T1 meets the first duration threshold t1, it is considered that the aftertreatment regeneration process can be completed normally by the engine at this time, without the need for alcohol fuel to participate in the aftertreatment regeneration, and the solenoid valve can be kept closed.

[0048] In one possible embodiment, the second duration threshold t2 is approximately 5 minutes.

[0049] In one specific embodiment, both the second load threshold B and the first load threshold A can be determined based on engine attributes. Generally, the second load threshold B is 20% of the engine load rate, and the first load threshold A is 50% of the engine load rate.

[0050] In one specific embodiment, when the time it takes for the upstream or downstream temperature of the aftertreatment to reach a first temperature threshold T1 does not meet a first duration threshold t1, the solenoid valve is controlled to open, so that the alcohol fuel and fuel oil participate together in the aftertreatment regeneration, including:

[0051] When the upstream or downstream temperature of the after-treatment reaches the first temperature threshold T1 and the engine load reaches the first load threshold A for a sustained period of a fourth time threshold t4, the solenoid valve is controlled to close.

[0052] In one specific embodiment, the fourth duration threshold t4 is approximately 2 minutes.

[0053] In a specific embodiment, if after a second time threshold t2, the upstream or downstream temperature of the after-treatment still has not reached the first temperature threshold T1, and the engine load is less than the second load threshold B, it is considered that even if ethanol participates in combustion, it is impossible to make the downstream temperature of the after-treatment reach T2. The vehicle is then controlled to issue a warning to remind the driver that the engine load is too low (do not run at low idle speed) and after-treatment regeneration cannot be performed.

[0054] In a specific embodiment, depending on the actual situation, when the load is large enough, theoretically the upstream temperature or downstream temperature of the after-processing will definitely reach the first temperature threshold T1. Therefore, if after the second time threshold t2, the upstream temperature or downstream temperature of the after-processing still has not reached the first temperature threshold T1, and the engine load is greater than the first load threshold A, it indicates that there is another fault in the vehicle, and the vehicle is controlled to issue a warning.

[0055] The present invention also discloses the following technical effects:

[0056] During the aftertreatment regeneration process, if the temperature does not reach the first temperature threshold, the engine will inject fuel afterward. However, the process of injecting fuel afterward may cause fuel to seep into the engine oil, diluting the engine oil. In this invention, alcohol fuel is introduced to participate in the aftertreatment regeneration process based on the conditions of temperature and engine load, which reduces the number of times fuel is injected afterward to a certain extent and reduces the risk of engine oil being diluted by fuel.

[0057] The post-processing regeneration apparatus provided by the present invention is described below. The post-processing regeneration apparatus described below can be referred to in correspondence with the post-processing regeneration method described above.

[0058] Figure 3 This is a block diagram of the post-processing regeneration device provided by the present invention, as shown below. Figure 3 As shown, an aftertreatment regeneration device is applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank contains alcohol fuel; the auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the device includes:

[0059] The data acquisition module 301 is used to receive the vehicle regeneration command and acquire the upstream temperature of the after-processor, the downstream temperature of the after-processor, and the engine load.

[0060] The solenoid valve control module 302 is used to control the solenoid valve to open when the time for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or when the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold, and the engine load is between the second load threshold and the first load threshold, so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0061] In one specific embodiment, the solenoid valve control module 302 is further configured to:

[0062] When the downstream temperature of the aftertreatment reaches a second temperature threshold and the engine load reaches a first load threshold for a third duration threshold, the solenoid valve is controlled to close.

[0063] In one specific embodiment, the solenoid valve control module 302 is further configured to:

[0064] When the upstream or downstream temperature of the aftertreatment reaches a first temperature threshold and the engine load reaches a first load threshold for a sustained period of a fourth time threshold, the solenoid valve is controlled to close.

[0065] In one specific embodiment, the solenoid valve control module 302 is further configured to:

[0066] When the time it takes for the upstream or downstream temperature of the post-processing to reach the first temperature threshold meets the first duration threshold, the solenoid valve remains closed.

[0067] In one specific embodiment, a warning module is also included, which is used to control the vehicle to issue a warning if the upstream temperature or downstream temperature of the post-processing has not reached the first temperature threshold after a second time threshold has elapsed, and the engine load is less than the second load threshold, so as to remind the driver that the engine load is too low and post-processing regeneration cannot be performed.

[0068] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other via the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a post-processing regeneration method. This method is applied to a vehicle, which includes an auxiliary fuel tank containing alcohol fuel. The auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline containing a solenoid valve. The method includes:

[0069] Receive vehicle regeneration command and obtain the upstream temperature of the after-processor, the downstream temperature of the after-processor, and the engine load.

[0070] If the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold has elapsed, and the engine load is between the second load threshold and the first load threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0071] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0072] On the other hand, the present invention also provides a computer program product, the computer program product comprising a computer program that can be stored on a non-transitory computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is capable of executing a post-processing regeneration method, the method being applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank containing alcohol fuel; the auxiliary fuel tank being connected to the vehicle's fuel pump via a pipeline, the pipeline being equipped with a solenoid valve; the method comprising:

[0073] Receive vehicle regeneration command and obtain the upstream temperature of the after-processor, the downstream temperature of the after-processor, and the engine load.

[0074] If the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold has elapsed, and the engine load is between the second load threshold and the first load threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0075] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a post-processing regeneration method. The method is applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank containing alcohol-based fuel; the auxiliary fuel tank being connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the method comprising:

[0076] Receive vehicle regeneration command and obtain the upstream temperature of the after-processor, the downstream temperature of the after-processor, and the engine load.

[0077] If the time it takes for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold after a second duration threshold has elapsed, and the engine load is between the second load threshold and the first load threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0078] The present invention also provides a vehicle, including a vehicle body and an auxiliary fuel tank;

[0079] The vehicle body includes a fuel pump and a controller;

[0080] The auxiliary fuel tank contains alcohol-based fuel;

[0081] The auxiliary fuel tank is connected to the fuel pump via a pipeline. A solenoid valve is installed in the pipeline and is connected to the controller. The controller is used to receive the vehicle regeneration command and acquire the upstream temperature, downstream temperature, and engine load of the aftertreatment system. If the time it takes for the upstream or downstream temperature of the aftertreatment system to reach the first temperature threshold does not meet the first duration threshold, or if the upstream or downstream temperature of the aftertreatment system has passed the second duration threshold and still has not reached the first temperature threshold, and the engine load is between the second load threshold and the first load threshold, the controller controls the solenoid valve to open so that the alcohol fuel and fuel oil can participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold.

[0082] In one specific embodiment, a temperature sensor is also included, which is used to acquire the upstream temperature and the downstream temperature of the post-processing, and to send the acquired upstream temperature and the downstream temperature of the post-processing to the controller.

[0083] The present invention also provides a working machine, including the post-processing regeneration device or the electronic device.

[0084] The operating machinery in this invention may include heavy trucks, trailers, excavators, roadheaders, bulldozers, road rollers, and concrete pump trucks, etc.

[0085] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0086] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0087] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A post-processing regeneration method, characterized in that, The method is applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank contains alcohol-based fuel; the auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the method includes: Receive vehicle regeneration command and obtain upstream temperature of aftertreatment, downstream temperature of aftertreatment and engine load; If the time it takes for the upstream or downstream temperature of the post-processing to reach the first temperature threshold does not meet the first duration threshold, the solenoid valve is controlled to open so that the alcohol fuel and fuel oil can participate in the post-processing regeneration. Alternatively, if, after a second time threshold, the upstream or downstream temperature of the aftertreatment process still has not reached the first temperature threshold, and the engine load is between the second and first load thresholds, the solenoid valve is opened to allow the alcohol fuel and fuel oil to participate in the aftertreatment regeneration. The second load threshold is less than the first load threshold, the second load threshold is 20% of the engine load rate, and the first load threshold is 50% of the engine load rate. The first temperature threshold is the conditional temperature at which the oxidation catalyst reacts, the first time threshold is the time required for the aftertreatment regeneration process to complete, and the second time threshold is the timeout period for waiting for the upstream or downstream temperature of the aftertreatment process to reach the first temperature threshold.

2. The post-processing regeneration method according to claim 1, characterized in that, If the time it takes for the upstream or downstream temperature of the aftertreatment to reach a first temperature threshold does not meet a first duration threshold, the solenoid valve is controlled to open, so that the alcohol fuel and fuel oil participate together in the aftertreatment regeneration, including: When the downstream temperature of the aftertreatment reaches a second temperature threshold and the engine load reaches a first load threshold for a sustained period of a third duration threshold, the solenoid valve is controlled to close. Here, the second temperature threshold is the combustion temperature for aftertreatment regeneration, and the third duration threshold is the duration during which the aftertreatment regeneration process can be completed normally by the engine.

3. The post-processing regeneration method according to claim 1, characterized in that, If, after the second time threshold, the upstream or downstream temperature of the aftertreatment process still has not reached the first temperature threshold, and the engine load is between the first and second load thresholds, the solenoid valve is opened to allow the alcohol fuel and fuel oil to participate in the aftertreatment regeneration, including: When the upstream or downstream temperature of the aftertreatment reaches a first temperature threshold and the engine load reaches a first load threshold for a sustained period of a fourth duration threshold, the solenoid valve is controlled to close. The fourth duration threshold is the duration during which the aftertreatment regeneration process can be normally completed by the engine.

4. The post-processing regeneration method according to any one of claims 1-3, characterized in that, When the time it takes for the upstream or downstream temperature of the post-processing to reach the first temperature threshold meets the first duration threshold, the solenoid valve remains closed.

5. The post-processing regeneration method according to any one of claims 1-3, characterized in that, If, after the second time threshold, the upstream or downstream temperature of the post-processing still has not reached the first temperature threshold, and the engine load is less than the second load threshold, the vehicle will issue a warning to alert the driver that the engine load is too low and post-processing regeneration cannot be performed.

6. A post-processing regeneration device, characterized in that, The device is applied to a vehicle, the vehicle including an auxiliary fuel tank; the auxiliary fuel tank contains alcohol-based fuel; the auxiliary fuel tank is connected to the vehicle's fuel pump via a pipeline, the pipeline containing a solenoid valve; the device includes: The data acquisition module is used to receive vehicle regeneration commands and acquire the upstream temperature of the aftertreatment system, the downstream temperature of the aftertreatment system, and the engine load. The solenoid valve control module is used to control the solenoid valve to open when the time it takes for the upstream or downstream temperature of the aftertreatment to reach a first temperature threshold does not meet a first duration threshold, so that the alcohol fuel and fuel oil can participate in the aftertreatment regeneration together; or, if after a second duration threshold, the upstream or downstream temperature of the aftertreatment still does not reach the first temperature threshold, and the engine load is between a second load threshold and a first load threshold, the module controls the solenoid valve to open so that the alcohol fuel and fuel oil can participate in the aftertreatment regeneration together, wherein the second load threshold is less than the first load threshold, the second load threshold is 20% of the engine load rate, and the first load threshold is 50% of the engine load rate, wherein the first temperature threshold is the conditional temperature at which the oxidation catalyst reacts, the first duration threshold is the time required for the aftertreatment regeneration process to complete, and the second duration threshold is the timeout period for waiting for the upstream or downstream temperature of the aftertreatment to reach the first temperature threshold.

7. A vehicle, characterized in that, Including the vehicle body and auxiliary fuel tank; The vehicle body includes a fuel pump and a controller; The auxiliary fuel tank contains alcohol-based fuel; The auxiliary fuel tank is connected to the fuel pump via a pipeline. A solenoid valve is installed within the pipeline and connected to a controller. The controller receives a vehicle regeneration command and acquires the upstream and downstream temperatures of the aftertreatment system and the engine load. If the time it takes for the upstream or downstream temperature to reach a first temperature threshold does not meet a first duration threshold, the controller opens the solenoid valve to allow the alcohol fuel and fuel oil to participate in the aftertreatment regeneration. Alternatively, if, after a second duration threshold, the upstream or downstream temperature still has not reached the first temperature threshold, and the engine load is between a second and first load threshold, the controller opens the solenoid valve to allow the alcohol fuel and fuel oil to participate in the aftertreatment regeneration. The second load threshold is less than the first load threshold, the second load threshold is 20% of the engine load rate, and the first load threshold is 50% of the engine load rate. The first temperature threshold is the conditional temperature at which the oxidation catalyst reacts, the first duration threshold is the time required for the aftertreatment regeneration process to complete, and the second duration threshold is the timeout period for the upstream or downstream temperature to reach the first temperature threshold.

8. The vehicle according to claim 7, characterized in that, It also includes a temperature sensor, which is used to acquire the upstream temperature and downstream temperature of the post-processing process, and send the acquired upstream temperature and downstream temperature of the post-processing process to the controller.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the post-processing regeneration method as described in any one of claims 1 to 5.

10. A type of operating machinery, characterized in that, It includes the post-processing regeneration device as described in claim 6 or the electronic device as described in claim 9.

Images