Driving regeneration control method and device, vehicle and computer storage medium

Abstract

The invention discloses a driving regeneration control method, a driving regeneration control device, computer equipment and a storage medium. The driving regeneration control method comprises the steps that when an engine enters a driving regeneration mode, first time and second time are accumulated according to the carbon load in a particle catcher, the first time is the total timing time, the second time is the time when the temperature of the particle catcher is lower than the preset temperature within the first time, and the second time is the time when the temperature of the particle catcher is lower than the preset temperature within the first time; the preset temperature is lower than the regeneration temperature of the particle catcher; calculating the ratio of the second time to the first time to obtain a low-temperature regeneration proportion; according to the low-temperature regeneration proportion, the regeneration idle speed and the regeneration quit carbon loading capacity are determined, and the regeneration idle speed and the regeneration quit carbon loading capacity are both in positive correlation with the low-temperature regeneration proportion. According to the driving regeneration control method, driving regeneration can be quitted when the temperature in the DOC process is difficult to maintain at a high level, so that the fuel consumption of the whole vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a driving regeneration control method, a driving regeneration control device, a vehicle and a computer storage medium. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] When the vehicle is performing driving regeneration, if the accelerator is frequently released, it will be difficult to maintain a high temperature during the DOC process, which will make it difficult to meet the calibration temperature required for the driving regeneration process, and then make it difficult to exit the driving regeneration, causing the driving regeneration process to last for a long time, which will increase the fuel consumption of the whole vehicle. Summary of the invention

[0004] The purpose of the present invention is to at least solve the problem that it is difficult to exit the regeneration during driving, which leads to increased fuel consumption of the whole vehicle. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the present invention proposes a driving regeneration control method, including: when the engine enters the driving regeneration mode, accumulating a first time and a second time according to the carbon load in the particulate trap, wherein the first time is the total timing time, and the second time is the time during the first time when the temperature of the particulate trap is lower than a preset temperature, and the preset temperature is lower than the regeneration temperature of the particulate trap; calculating the ratio of the second time to the first time to obtain a low-temperature regeneration ratio; determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

[0006] According to the driving regeneration control method of the present invention, when the engine enters the driving regeneration mode, the first time and the second time are accumulated, and the low-temperature regeneration ratio that can reflect the current driving regeneration effect is calculated through the first time and the second time, and the regeneration idle speed and regeneration exit carbon load of the driving regeneration mode are determined according to the low-temperature regeneration ratio. When the calibration temperature required by the driving regeneration process is difficult to be met, the low-temperature regeneration ratio is high. The higher regeneration idle speed can increase the temperature of the DOC, which is helpful for the driving regeneration, so that the carbon load in the DPF can reach the regeneration exit carbon load as soon as possible, so that the engine can exit the driving regeneration mode as soon as possible. The higher regeneration exit carbon load can make the engine exit the driving regeneration mode as soon as possible, thereby avoiding the engine being in the driving regeneration mode for a long time, resulting in an increase in the fuel consumption of the whole vehicle.

[0007] In some embodiments of the present invention, when the engine enters the driving regeneration mode, the first time and the second time are obtained according to the carbon load in the particulate trap, including: when the engine enters the driving regeneration mode, starting to accumulate the first time and the second time; when the carbon load is lower than a preset value, stopping accumulating the first time and the second time, wherein the preset value is greater than the calibrated regeneration exit carbon load.

[0008] In some embodiments of the present invention, when the engine enters the driving regeneration mode, the first time and the second time are accumulated, including: when the engine enters the driving regeneration mode, it is determined whether there is a post-processing related fault; when there is no post-processing related fault, the first time and the second time are accumulated.

[0009] In some embodiments of the present invention, after calculating the ratio of the second time to the first time to obtain the low-temperature regeneration ratio, and before determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, the driving regeneration control method further includes: obtaining the ambient temperature; obtaining a temperature correction coefficient according to the ambient temperature; and correcting the low-temperature regeneration ratio by the temperature correction coefficient.

[0010] In some embodiments of the present invention, determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration proportion includes: calling the regeneration idle speed array to obtain the regeneration idle speed corresponding to the low-temperature regeneration proportion in the regeneration idle speed array; calling the regeneration exit carbon load array to obtain the regeneration exit carbon load corresponding to the low-temperature regeneration proportion in the regeneration exit carbon load array.

[0011] In some embodiments of the present invention, the driving regeneration control method also includes: when the engine exits the driving regeneration mode, obtaining a first value in the regeneration idle array, and resetting the regeneration idle to the first value, wherein the first value is the minimum value in the regeneration idle array.

[0012] In some embodiments of the present invention, the driving regeneration control method also includes: when the engine exits the driving regeneration mode, obtaining the regeneration exit carbon load and the calibrated regeneration exit carbon load; obtaining a second value, wherein the second value is the smaller of the regeneration exit carbon load and the calibrated regeneration exit carbon load; and resetting the regeneration exit carbon load to the second value.

[0013] The second aspect of the present invention proposes a driving regeneration control device, comprising: an accumulation module, a calculation module and a determination module. The accumulation module is used to accumulate the first time and the second time according to the carbon load in the particulate trap when the engine enters the driving regeneration mode, wherein the first time is the total timing time, and the second time is the time when the temperature of the particulate trap is lower than the preset temperature within the first time, and the preset temperature is lower than the regeneration temperature of the particulate trap; the calculation module is used to calculate the low-temperature regeneration ratio according to the first time and the second time; the determination module is used to determine the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

[0014] A third aspect of the present invention provides a vehicle, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the vehicle regeneration control method as described in the first aspect above when executing the computer program.

[0015] The fourth aspect of the present invention proposes a computer storage medium, characterized in that computer readable instructions are stored on the computer storage medium, and when the computer readable instructions are read by one or more processors, the one or more processors execute the steps of the vehicle regeneration control method described in the first aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0017] Figure 1 A flow chart of a driving regeneration control method according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Flow chart of step S100;

[0019] Figure 3 for Figure 2 Flow chart of step S110;

[0020] Figure 4 A flowchart of other steps of the driving regeneration control method according to an embodiment of the present invention;

[0021] Figure 5 A flowchart of some further steps of the driving regeneration control method according to an embodiment of the present invention;

[0022] Figure 6A flowchart of some further steps of the driving regeneration control method according to an embodiment of the present invention;

[0023] Figure 7 Schematic diagram of a vehicle regeneration control device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0026] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0027] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0028] First, a brief introduction to the relevant terms:

[0029] DOC: Diesel Oxidation Catalyst, a diesel exhaust aftertreatment technology, is used to oxidize pollutants such as HC (total hydrocarbons) and CO (carbon monoxide).

[0030] DPF: Diesel Particulate Filter, used to capture particulate matter in diesel engine exhaust.

[0031] Driving regeneration: When the carbon deposit content in the DPF reaches a certain value during vehicle driving, the DOC combustion is used to increase the DPF temperature and remove the accumulated carbon deposits in the DPF. Driving regeneration can reduce the emission of particulate matter in the exhaust gas.

[0032] Carbon loading: the weight of carbon deposits per liter of DPF volume, measured in g / L. Carbon loading is a physical quantity that measures the amount of carbon deposits in the DPF. When the carbon loading is higher than a certain value, driving regeneration will be triggered. When the carbon loading is lower than a certain value, driving regeneration will be exited. Among them, the carbon loading when driving regeneration is exited is the regeneration exit carbon loading.

[0033] Idle speed refers to the lowest speed at which the internal combustion engine can maintain stable operation when there is no load, that is, when the clutch is not engaged and the transmission is in neutral. Idle speed is an important parameter for the normal operation of the engine and can affect the engine's performance, fuel efficiency and emission levels.

[0034] Regeneration idle speed: The idle speed of the engine during the regeneration process.

[0035] In the related art, if the accelerator is frequently released, it will be difficult to maintain a high temperature during the DOC process, which will make it difficult to meet the calibration temperature required for the driving regeneration process, and then make it difficult to exit the driving regeneration, causing the driving regeneration process to last for a long time, which will increase the fuel consumption of the whole vehicle.

[0036] In order to at least solve the problem in the related art that it is difficult to exit driving regeneration, which leads to increased vehicle fuel consumption, an embodiment of the present invention proposes a driving regeneration control method, which can exit driving regeneration when the temperature in the DOC process is difficult to maintain a high level, thereby reducing vehicle fuel consumption.

[0037] like Figure 1 As shown, the driving regeneration control method of the embodiment of the present invention includes: S100, when the engine enters the driving regeneration mode, the first time and the second time are accumulated according to the carbon load in the particulate trap, wherein the first time is the total timing time, and the second time is the time when the temperature of the particulate trap is lower than the preset temperature within the first time, and the preset temperature is lower than the regeneration temperature of the particulate trap. S200, calculate the ratio of the second time to the first time to obtain the low-temperature regeneration ratio. S300, determine the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

[0038] S100. When the engine enters the driving regeneration mode, a first time and a second time are accumulated according to the carbon load in the particulate trap (DPF), wherein the first time is the total timing time, and the second time is the time when the temperature of the particulate trap is lower than a preset temperature within the first time, and the preset temperature is lower than the regeneration temperature of the particulate trap.

[0039] The first time and the second time can reflect the DPF temperature condition during a period of time during the driving regeneration process, thereby reflecting the driving regeneration condition in the DPF.

[0040] As some implementation modes, the first time and the second time are accumulated by an integrator.

[0041] Optionally, the preset temperature is the regeneration temperature setting value minus 30°C to 70°C.

[0042] The regeneration temperature setting value is the temperature requirement of the DPF during the driving regeneration process.

[0043] When the temperature is lower than the regeneration temperature setting value minus 30℃ to 70℃, it means that the temperature inside the DPF is at a low state and the driving regeneration conditions are poor.

[0044] Preferably, the preset temperature is the regeneration temperature setting value minus 50°C.

[0045] When the temperature is lower than the regeneration temperature setting value minus 50°C, it means that the temperature inside the DPF is at a low level and the driving regeneration conditions are poor.

[0046] The first time and the second time are accumulated according to the carbon load in the DPF, and the first time and the second time may be accumulated when the carbon load meets certain conditions, or may be accumulated when the engine enters the driving regeneration mode, and the first time and the second time are stopped when the carbon load meets certain conditions.

[0047] As an optional implementation method for obtaining the carbon load in the DPF, by establishing a carbon load calculation model, the carbon load inside the DPF is estimated through parameters such as speed, load, exhaust pressure difference, exhaust mass flow, exhaust temperature before DOC, exhaust temperature before DPF, and exhaust temperature after DPF. As an optional implementation method for obtaining the carbon load in the DPF, full-condition measured data of the engine at different operating temperatures and starting ambient temperatures are collected, and these data are used to train and verify the self-learning model to use the engine's operating data to predict and calculate the carbon load in the DPF.

[0048] Combination Figure 1 and Figure 2 As shown, in some embodiments, S100, when the engine enters the driving regeneration mode, the first time and the second time are obtained according to the carbon load in the particulate trap, including: S110, when the engine enters the driving regeneration mode, the first time and the second time are accumulated. S120, when the carbon load is lower than a preset value, the first time and the second time are stopped from being accumulated, wherein the preset value is greater than the calibrated regeneration exit carbon load.

[0049] The calibrated regeneration exit carbon load refers to the calibrated value of the regeneration exit carbon load, which is the carbon load at the time of regeneration exit when the driving regeneration method of the embodiment of the present invention is not performed.

[0050] The engine enters the driving regeneration mode and starts to accumulate the first time and the second time. When the carbon load is lower than the preset value, the accumulation of the first time and the second time is stopped. This can reflect the driving regeneration conditions in the DPF in the front stage of the driving regeneration process, so that the latter stage of the driving regeneration process can be processed more timely.

[0051] In other embodiments, S100, when the engine enters the driving regeneration mode, the first time and the second time are obtained according to the carbon load in the particulate trap, including: when the carbon load is lower than the accumulation start threshold, the first time and the second time are accumulated. When the carbon load is lower than the preset value, the first time and the second time are stopped. The preset value is greater than the calibrated regeneration exit carbon load, and the accumulation start threshold is greater than the preset value.

[0052] When the carbon load is lower than the accumulation start threshold, the first time and the second time start to be accumulated. When the carbon load is lower than the preset value, the first time and the second time are stopped. This can accurately reflect the status of the driving regeneration conditions in the DPF during a period of time in the front of the driving regeneration process, so that the latter part of the driving regeneration process can be processed more timely.

[0053] S200, calculating the ratio of the second time to the first time to obtain a low-temperature regeneration ratio.

[0054] The low-temperature regeneration ratio can directly reflect the driving regeneration conditions in the DPF. A high low-temperature regeneration ratio indicates that the temperature in the DPF is low and the driving regeneration effect is poor. A low low-temperature regeneration ratio indicates that the temperature in the DPF is appropriate and the driving regeneration effect is good.

[0055] Specifically, the low temperature regeneration ratio Ratio is calculated by the following formula:

[0056] Ratio = Ti / Tiall;

[0057] Among them, Ti is the second time and Tiall is the first time.

[0058] S300. Determine the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

[0059] The regeneration idle speed and regeneration exit carbon load are both positively correlated with the proportion of low-temperature regeneration, which means that the higher the proportion of low-temperature regeneration, the higher the regeneration idle speed and regeneration exit carbon load, and the lower the proportion of low-temperature regeneration, the lower the regeneration idle speed and regeneration exit carbon load.

[0060] When the proportion of low-temperature regeneration is high, the temperature inside the DPF is low, and the driving regeneration effect is poor. A higher regeneration exit carbon load can make the engine exit the driving regeneration mode as soon as possible, thereby avoiding the engine being in the driving regeneration mode for a long time, which leads to an increase in vehicle fuel consumption. A higher regeneration idle speed can increase the temperature of the DOC, which helps the driving regeneration, so that the carbon load in the DPF can reach the regeneration exit carbon load as soon as possible, so that the engine can exit the driving regeneration mode as soon as possible, thereby further avoiding an increase in vehicle fuel consumption.

[0061] When the low-temperature regeneration ratio is low, the temperature inside the DPF is suitable for driving regeneration, and the driving regeneration effect is better. The lower regeneration exit carbon load can increase the driving regeneration time, so as to reduce the amount of carbon deposits in the DPF as much as possible, so that the driving regeneration is more thorough. When the temperature inside the DPF is suitable for driving regeneration, the regeneration idle speed can increase the temperature of the DOC, but the gain to the DOC is small. Therefore, when the low-temperature regeneration ratio is low, the lower regeneration idle speed can reduce fuel consumption as much as possible.

[0062] As some examples, the engine idle speed in non-regeneration mode is 550r / min, and when the low-temperature regeneration ratio is 70%, the regeneration idle speed is 1200±50r / min, and the regeneration exit carbon load is 2±0.3g / L. When the low-temperature regeneration ratio is 50%, the regeneration idle speed is 800±50r / min, and the regeneration exit carbon load is 1±0.3g / L. When the low-temperature regeneration ratio is 20%, the regeneration idle speed is calibrated to 600±50r / min, and the regeneration exit carbon load is 0.5±0.3g / L.

[0063] The driving regeneration control method of the embodiment of the present invention is as follows: when the engine enters the driving regeneration mode, the first time and the second time are accumulated, and the low-temperature regeneration ratio that can reflect the current driving regeneration effect is calculated through the first time and the second time, and the regeneration idle speed and the regeneration exit carbon load of the driving regeneration mode are determined according to the low-temperature regeneration ratio. When the calibration temperature required by the driving regeneration process is difficult to be met, the low-temperature regeneration ratio is high. The higher regeneration idle speed can increase the temperature of the DOC, thereby facilitating the driving regeneration, so that the carbon load in the DPF can reach the regeneration exit carbon load as soon as possible, so that the engine can exit the driving regeneration mode as soon as possible. The higher regeneration exit carbon load can make the engine exit the driving regeneration mode as soon as possible, thereby avoiding the engine being in the driving regeneration mode for a long time, resulting in an increase in the fuel consumption of the whole vehicle.

[0064] Combination Figure 2 and Figure 3 As shown, in some embodiments, S110, when the engine enters the driving regeneration mode, the first time and the second time are accumulated, including: S111, when the engine enters the driving regeneration mode, it is determined whether there is a post-processing related fault. S112, when there is no post-processing related fault, the first time and the second time are accumulated.

[0065] Post-processing related faults refer to faults such as DPF temperature credibility and DPF overload. Post-processing related faults will affect the accuracy of the low-temperature regeneration ratio.

[0066] When there is no post-processing related fault, accumulating the first time and the second time can improve the accuracy of the low-temperature regeneration ratio.

[0067] Optionally, no action is taken when there is a post-processing related fault.

[0068] When the engine is in a low temperature environment, the low temperature environment will affect the value of the low temperature regeneration ratio, resulting in a higher value of the low temperature regeneration ratio.

[0069] Combination Figure 1 and Figure 4As shown, in some embodiments, before step S200, calculating the ratio of the second time to the first time to obtain the low-temperature regeneration ratio, and before step S300, determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, the driving regeneration control method also includes: S400, obtaining the ambient temperature; S500, obtaining the temperature correction coefficient according to the ambient temperature; S600, correcting the low-temperature regeneration ratio by the temperature correction coefficient.

[0070] By correcting the low-temperature regeneration ratio through the temperature correction coefficient, the accuracy of the low-temperature regeneration ratio can be improved, and excessive correction of the regeneration idle speed and the regeneration push carbon load can be avoided. By correcting the low-temperature regeneration ratio through the temperature correction coefficient, the adaptability of the regeneration control method of this embodiment to the environment can be improved.

[0071] In some embodiments, a regeneration idle speed array is formed according to the mapping relationship between the low-temperature regeneration ratio and the regeneration idle speed, so as to quickly obtain the specific value of the regeneration idle speed through the low-temperature regeneration ratio. A regeneration idle speed array is formed according to the mapping relationship between the low-temperature regeneration ratio and the regeneration exit carbon load, so as to quickly obtain the specific value of the regeneration exit carbon load through the low-temperature regeneration ratio.

[0072] In some embodiments, the regeneration idle speed and the regeneration exit carbon load are determined according to the low-temperature regeneration ratio, including: calling the regeneration idle speed array to obtain the regeneration idle speed corresponding to the low-temperature regeneration ratio in the regeneration idle speed array; calling the regeneration exit carbon load array to obtain the regeneration exit carbon load corresponding to the low-temperature regeneration ratio in the regeneration exit carbon load array.

[0073] By calling the regeneration idle speed value, the specific value of the regeneration idle speed can be quickly obtained according to the low-temperature regeneration ratio. By calling the regeneration exit carbon load array, the specific value of the regeneration exit carbon load array can be quickly obtained according to the low-temperature regeneration ratio.

[0074] Specifically, the regeneration idle speed array is regeneration idle speed_CUR (Curve, curve), and the regeneration push carbon load array is regeneration push carbon load_CUR (Curve, curve). The curve can more intuitively and comprehensively reflect the mapping relationship between the low temperature regeneration ratio and the regeneration idle speed and the mapping relationship between the low temperature regeneration ratio and the regeneration exit carbon load.

[0075] like Figure 5 As shown, in some embodiments, the driving regeneration control method also includes: S700, when the engine exits the driving regeneration mode, obtaining the first value in the regeneration idle array, resetting the regeneration idle to the first value, wherein the first value is the minimum value in the regeneration idle array.

[0076] By resetting the regeneration idle speed to the minimum value in the regeneration idle speed array, the fuel consumption of the engine can be reduced, thereby avoiding a significant deterioration in fuel consumption during the next driving regeneration.

[0077] like Figure 6 As shown, in some embodiments, the driving regeneration control method also includes: S800, when the engine exits the driving regeneration mode, obtaining the regeneration exit carbon load and the calibrated regeneration exit carbon load; S900, obtaining a second value, wherein the second value is the smaller of the regeneration exit carbon load and the calibrated regeneration exit carbon load; S1000, resetting the regeneration exit carbon load to the second value.

[0078] By resetting the regeneration exit carbon load, it is possible to prevent the exit carbon load from being too large during the driving regeneration process, which would result in a shortened mileage to the next driving regeneration, thereby further reducing the fuel consumption of the entire vehicle.

[0079] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0080] Based on the same inventive concept, the embodiment of the present application also provides a driving regeneration control device 100 for implementing the driving regeneration control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations of one or more driving regeneration control device 100 embodiments provided below can refer to the limitations of the driving regeneration control method above, and will not be repeated here.

[0081] like Figure 7As shown, the driving regeneration control device 100 of the embodiment of the present invention includes: an accumulation module 1, a calculation module 2 and a determination module 3. The accumulation module 1 is used to accumulate the first time and the second time according to the carbon load in the particulate trap when the engine enters the driving regeneration mode, wherein the first time is the total timing time, and the second time is the time when the temperature of the particulate trap is lower than the preset temperature within the first time, and the preset temperature is lower than the regeneration temperature of the particulate trap. The calculation module 2 is used to calculate the low-temperature regeneration ratio according to the first time and the second time. The determination module 3 is used to determine the regeneration idle and regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle and regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

[0082] In some embodiments, the accumulation module 1 is also used to start accumulating the first time and the second time when the engine enters the driving regeneration mode; when the carbon load is lower than a preset value, stop accumulating the first time and the second time, wherein the preset value is greater than the calibrated regeneration exit carbon load.

[0083] In some embodiments, the accumulation module 1 is also used to determine whether there is a post-processing related fault when the engine enters the driving regeneration mode; when there is no post-processing related fault, start accumulating the first time and the second time.

[0084] In some embodiments, the driving regeneration control device 100 also includes a correction module, which is used for after calculating the low-temperature regeneration ratio according to the first time and the second time, and before determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, the driving regeneration control method also includes: obtaining the ambient temperature; obtaining the temperature correction coefficient according to the ambient temperature; and correcting the low-temperature regeneration ratio by the temperature correction coefficient.

[0085] In some embodiments, the determination module 3 is also used to: call the regeneration idle speed array to obtain the regeneration idle speed corresponding to the low-temperature regeneration proportion in the regeneration idle speed array; call the regeneration exit carbon load array to obtain the regeneration exit carbon load corresponding to the low-temperature regeneration proportion in the regeneration exit carbon load array.

[0086] In some embodiments, the driving regeneration control device 100 also includes a first reset module, which is used to obtain a first value in the regeneration idle array when the engine exits the driving regeneration mode, and reset the regeneration idle to the first value, wherein the first value is the minimum value in the regeneration idle array.

[0087] In some embodiments, the driving regeneration control device 100 also includes a second reset module, which is used to obtain the regeneration exit carbon load and the calibrated regeneration exit carbon load when the engine exits the driving regeneration mode; obtain a second value, wherein the second value is the smaller of the regeneration exit carbon load and the calibrated regeneration exit carbon load; and reset the regeneration exit carbon load to the second value.

[0088] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present application, and does not constitute a limitation on the driving regeneration control device 100 to which the scheme of the present application is applied. The specific driving regeneration control device 100 may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0089] The vehicle of the embodiment of the present invention includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the steps of the driving regeneration control method of the above embodiment are implemented.

[0090] Furthermore, the vehicle includes a computer device, which includes a processor, a memory, an input / output interface (I / O for short) and a communication interface. The processor, the memory and the input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, the above-mentioned vehicle regeneration method is implemented.

[0091] The computer storage medium of an embodiment of the present invention is characterized in that computer readable instructions are stored on the computer storage medium, and when the computer readable instructions are read by one or more processors, the one or more processors execute the steps of the vehicle regeneration control method of the above embodiment.

[0092] The logic and / or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer-readable storage medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, apparatus, or device and execute instructions), or in conjunction with such instruction execution system, apparatus, or device. For purposes of this specification, a "computer-readable storage medium" may be any device that can contain, store, communicate, propagate, or transmit a program for use by an instruction execution system, apparatus, or device, or in conjunction with such instruction execution system, apparatus, or device. More specific examples of computer-readable storage media (a non-exhaustive list) include the following: an electrical connection with one or more wirings (electronic devices), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory, or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM, Compact Disc Read-Only Memory). In addition, the computer-readable storage medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0093] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA, Programmable Gate Array), a field programmable gate array (FPGA, Field Programmable Gate Array), etc.

[0094] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A driving regeneration control method, characterized in that: include: When the engine enters the driving regeneration mode, a first time and a second time are accumulated according to the carbon load in the particulate trap, wherein the first time is the total timing time, and the second time is the time during which the temperature of the particulate trap is lower than a preset temperature within the first time, and the preset temperature is lower than the particulate trap regeneration temperature; Calculate the ratio of the second time to the first time to obtain a low-temperature regeneration ratio; The regeneration idle speed and the regeneration exit carbon load are determined according to the low-temperature regeneration proportion, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration proportion.

2. The driving regeneration control method according to claim 1, characterized in that: The step of obtaining the first time and the second time according to the carbon load in the particulate trap when the engine enters the driving regeneration mode comprises: When the engine enters the driving regeneration mode, the first time and the second time begin to be accumulated; When the carbon load is lower than a preset value, the accumulation of the first time and the second time is stopped, wherein the preset value is greater than a calibrated regeneration exit carbon load.

3. The driving regeneration control method according to claim 2, characterized in that: The step of starting to accumulate the first time and the second time when the engine enters the driving regeneration mode comprises: When the engine enters the driving regeneration mode, determine whether there is a post-treatment related fault; When the post-processing related fault does not exist, the first time and the second time begin to be accumulated.

4. The driving regeneration control method according to claim 1, characterized in that: In calculating the ratio of the second time to the first time to obtain the low-temperature regeneration ratio, and before determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, the driving regeneration control method further includes: Get the ambient temperature; Obtaining a temperature correction coefficient according to the ambient temperature; The low-temperature regeneration ratio is corrected by the temperature correction coefficient.

5. The driving regeneration control method according to any one of claims 1 to 4, characterized in that: The step of determining the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio includes: Retrieving a regeneration idle speed array, and obtaining the regeneration idle speed corresponding to the low-temperature regeneration ratio in the regeneration idle speed array; The regeneration exit carbon load array is retrieved to obtain the regeneration exit carbon load corresponding to the low-temperature regeneration proportion in the regeneration exit carbon load array.

6. The driving regeneration control method according to claim 5, characterized in that: The driving regeneration control method further includes: When the engine exits the driving regeneration mode, a first value in the regeneration idle array is obtained, and the regeneration idle is reset to the first value, wherein the first value is a minimum value in the regeneration idle array.

7. The driving regeneration control method according to claim 1, characterized in that: The driving regeneration control method further includes: When the engine exits the driving regeneration mode, obtaining the regeneration exit carbon load and the calibrated regeneration exit carbon load; Obtaining a second value, wherein the second value is a smaller value of the regeneration exit carbon load and the calibrated regeneration exit carbon load; The regeneration exit carbon loading is reset to the second value.

8. A driving regeneration control device, characterized in that: include: an accumulation module, for accumulating a first time and a second time according to the carbon load in the particulate trap when the engine enters the driving regeneration mode, wherein the first time is the total timing time, and the second time is the time during which the temperature of the particulate trap is lower than a preset temperature within the first time, and the preset temperature is lower than the regeneration temperature of the particulate trap; A calculation module, used for calculating the low-temperature regeneration ratio according to the first time and the second time; A determination module is used to determine the regeneration idle speed and the regeneration exit carbon load according to the low-temperature regeneration ratio, wherein the regeneration idle speed and the regeneration exit carbon load are both positively correlated with the low-temperature regeneration ratio.

9. A vehicle, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the vehicle regeneration control method according to any one of claims 1 to 7 when executing the computer program.

10. A computer storage medium, characterized in that: Computer-readable instructions are stored on the computer storage medium. When the computer-readable instructions are read by one or more processors, the one or more processors execute the steps of the vehicle regeneration control method as described in any one of claims 1 to 7.

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