Dpf regeneration control method, device, storage medium, and electronic apparatus

Abstract

The application discloses a DPF regeneration control method and device, a storage medium and electronic equipment, and can obtain at least one of a current map signal and engine parameters of a vehicle when the carbon load of the vehicle exceeds a first carbon load threshold; if only the map signal is obtained, whether the vehicle currently meets the condition of DPF regeneration is determined according to the map signal; if only the engine parameters are obtained, whether the vehicle currently meets the condition of DPF regeneration is determined according to the engine parameters; if the map signal and the engine parameters are obtained, whether the vehicle currently meets the condition of DPF regeneration is determined according to the map signal and the engine parameters. It can be seen that, according to at least one of the map signal and the engine parameters, whether the DPF needs to be regenerated is determined when the carbon load exceeds the threshold, which is more in line with actual needs, avoids waste of fuel and frequent DPF regeneration, is good in fuel economy, and is good in DPF regeneration effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engines, in particular to a DPF regeneration control method and device, a storage medium and an electronic device. BACKGROUND

[0002] To reduce air pollution, more and more internal combustion engines reduce PN emissions (solid suspended particulate mass / particle number in automobile exhaust emissions) by installing a particulate trap device DPF. As the particulate matter trapped in the DPF continues to accumulate, the engine exhaust back pressure rises, the vehicle fuel economy deteriorates, and severe DPF clogging may occur. Therefore, the DPF full of particulate matter needs to be regenerated to restore its particulate trapping function. The current method is generally to make a simple judgment on the DPF, and then perform DPF regeneration, which has poor fuel economy and poor regeneration effect. SUMMARY

[0003] In view of the above problems, the present application provides a DPF regeneration control method, device, storage medium and electronic device which can overcome the above problems or at least partially solve the above problems.

[0004] In a first aspect, a DPF regeneration control method is provided, comprising:

[0005] When the carbon load of the vehicle exceeds a first carbon load threshold, obtaining at least one of a current map signal and a current engine parameter of the vehicle;

[0006] If only the map signal is obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the map signal;

[0007] If only the engine parameter is obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the engine parameter;

[0008] If the map signal and the engine parameter are obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the map signal and the engine parameter.

[0009] Optionally, in some optional embodiments, the determination of whether the vehicle currently meets the condition for DPF regeneration according to the map signal comprises:

[0010] According to the map signal, determining whether the vehicle is currently on a preset road, wherein the preset road includes a highway, a national road or a provincial road;

[0011] According to the map signal, determining whether the vehicle is currently outside a preset area, wherein the preset area includes an easily flammable and explosive area;

[0012] If the vehicle is currently on the preset road and outside the preset area, it is determined that the vehicle currently meets the position condition for performing DPF regeneration.

[0013] Optionally, in some optional embodiments, the determining whether the vehicle currently meets the condition for performing DPF regeneration according to the engine parameters comprises:

[0014] determining, according to the engine parameters, whether a current vehicle speed of the vehicle is greater than a preset vehicle speed;

[0015] determining, according to the engine parameters, whether a current load rate of the vehicle is greater than a preset load rate;

[0016] determining, according to the engine parameters, whether a urea liquid level change rate of the vehicle is less than a preset urea change rate;

[0017] determining, according to the engine parameters, whether an accelerator change rate of the vehicle is less than a preset accelerator change rate;

[0018] determining, according to the engine parameters, whether an idle speed proportion of the vehicle in a latest first time range is less than a preset proportion;

[0019] If the current vehicle speed of the vehicle is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the accelerator change rate is less than the preset accelerator change rate, and the idle speed proportion is less than the preset proportion, it is determined that the vehicle currently meets the vehicle condition for performing DPF regeneration.

[0020] Optionally, in some optional embodiments, the determining whether the vehicle currently meets the condition for performing DPF regeneration according to the map signal and the engine parameters comprises:

[0021] determining, according to the map signal, whether the vehicle is currently on a preset road, wherein the preset road comprises a highway, a national road, or a provincial road;

[0022] determining, according to the map signal, whether the vehicle is currently outside a preset area, wherein the preset area comprises a flammable and explosive area;

[0023] determining, according to the engine parameters, whether a current vehicle speed of the vehicle is greater than a preset vehicle speed;

[0024] determining, according to the engine parameters, whether a current load rate of the vehicle is greater than a preset load rate;

[0025] determining, according to the engine parameters, whether a urea liquid level change rate of the vehicle is less than a preset urea change rate;

[0026] determining whether a throttle change rate of the vehicle is less than a preset throttle change rate according to the engine parameters;

[0027] determining whether an idle ratio of the vehicle in a latest first time range is less than a preset ratio according to the engine parameters;

[0028] if the vehicle is currently in the preset road and outside the preset area, the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than a preset urea change rate, the throttle change rate is less than the preset throttle change rate, and the idle ratio is less than the preset ratio, it is determined that the vehicle currently meets the condition for DPF regeneration.

[0029] Optionally, in some optional embodiments, the method further comprises:

[0030] if it is determined that the vehicle currently meets the condition for DPF regeneration, controlling the DPF to perform a regeneration process, and obtaining new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold value;

[0031] if it is determined that the vehicle currently does not meet the condition for DPF regeneration, controlling the DPF to stop performing a regeneration process or prohibiting the DPF from performing a regeneration process this time, and obtaining at least one of new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold value.

[0032] Optionally, in some optional embodiments, the method further comprises:

[0033] if a current control instruction of a user is obtained and the control instruction is to allow DPF regeneration, controlling the DPF to perform a regeneration process, and obtaining at least one of new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold value;

[0034] if the current control instruction of the user is obtained and the control instruction is to prohibit DPF regeneration, controlling the DPF to stop performing a regeneration process or prohibiting the DPF from performing a regeneration process this time, and obtaining at least one of new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold value.

[0035] Optionally, in some optional embodiments, the method further comprises:

[0036] if it is determined that the vehicle currently does not meet the condition for DPF regeneration for N consecutive times, reducing the value of the first carbon load threshold value.

[0037] In a second aspect, a DPF regeneration control device includes a data obtaining unit, a first judging unit, a second judging unit, and a third judging unit.

[0038] The data obtaining unit is configured to obtain at least one of a current map signal and a current engine parameter of a vehicle when a carbon load of the vehicle exceeds a first carbon load threshold.

[0039] The first judging unit is configured to determine, if only the map signal is obtained, whether a condition for performing DPF regeneration is met based on the map signal.

[0040] The second judging unit is configured to determine, if only the engine parameter is obtained, whether the condition for performing DPF regeneration is met based on the engine parameter.

[0041] The third judging unit is configured to determine, if both the map signal and the engine parameter are obtained, whether the condition for performing DPF regeneration is met based on the map signal and the engine parameter.

[0042] In a third aspect, a computer readable storage medium stores a program, which, when executed by a processor, implements the DPF regeneration control method of any one of the above aspects.

[0043] In a fourth aspect, an electronic device includes at least one processor and at least one memory connected to the processor via a bus; the processor and the memory communicate with each other via the bus; the processor is configured to call program instructions in the memory to execute the DPF regeneration control method of any one of the above aspects.

[0044] The DPF regeneration control method, device, storage medium, and electronic device provided by the above technical solution can obtain at least one of a current map signal and a current engine parameter of a vehicle when a carbon load of the vehicle exceeds a first carbon load threshold; determine, if only the map signal is obtained, whether a condition for performing DPF regeneration is met based on the map signal; determine, if only the engine parameter is obtained, whether the condition for performing DPF regeneration is met based on the engine parameter; and determine, if both the map signal and the engine parameter are obtained, whether the condition for performing DPF regeneration is met based on the map signal and the engine parameter. Thus, it can be seen that the present application determines whether DPF regeneration is needed based on at least one of a map signal and an engine parameter when the carbon load exceeds a threshold, which is more in line with actual needs, avoids wasting fuel and frequent DPF regeneration, has good fuel economy, and has good DPF regeneration effect.

[0045] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application and implement the same according to the contents of the description, and in order to enable the above and other purposes, features and advantages of the present application to be more apparent and understandable, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Furthermore, the same reference numerals in different drawings identify the same elements. In the drawings:

[0047] Figure 1 A flow chart of a DPF regeneration control method provided by the present application is shown;

[0048] Figure 2 A structural schematic diagram of a DPF regeneration control device provided by the present application is shown;

[0049] Figure 3 A structural schematic diagram of an electronic device provided by the present application is shown. DETAILED DESCRIPTION

[0050] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood and so that the scope of the present application can be conveyed to those skilled in the art.

[0051] As Figure 1 shown, the present application provides a DPF regeneration control method, comprising: S100, S200, S300 and S400;

[0052] S100, when the carbon load of the vehicle exceeds a first carbon load threshold, obtaining at least one of a current map signal and a current engine parameter of the vehicle;

[0053] Optionally, the execution subject of the present application can continuously monitor the carbon load of the vehicle, and when the carbon load exceeds the first carbon load threshold, the subsequent execution process of the present application can be triggered, which is not limited by the present application. It should be noted that the carbon load refers to the amount of carbon particulate matter accumulated in the diesel particulate filter DPF. The greater the carbon load, the greater the probability of DPF blockage, and the greater the need for DPF regeneration, which is not limited by the present application.

[0054] Optionally, the map signal can be obtained from a vehicle navigation device, and the engine parameter can be obtained from an engine computer, which are not limited in the present application.

[0055] S200, if only the map signal is obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the map signal;

[0056] Optionally, the map signal can reflect the road, location and surrounding location information where the vehicle is currently located. The map information can reflect whether the vehicle is currently located in a suitable position for DPF regeneration, which is not limited in the present application.

[0057] For example, in some optional embodiments, the step of determining whether the vehicle currently meets the condition for DPF regeneration according to the map signal in S200 includes steps 1.1, 1.2 and 1.3.

[0058] Step 1.1, determining whether the vehicle is currently located on a preset road according to the map signal, wherein the preset road includes a highway, a national road or a provincial road.

[0059] Optionally, the DPF can be divided into on-road regeneration and parking regeneration. For on-road regeneration, the vehicle needs to maintain a stable speed for a certain period of time to provide sufficient temperature for DPF regeneration. Therefore, the vehicle needs to travel on a road with good traffic conditions to avoid frequent stopping and starting. That is, the present application can determine whether the vehicle is located on a road with good traffic conditions such as a highway, a national road, an expressway and a provincial road according to the map information, which is not limited in the present application.

[0060] Step 1.2, determining whether the vehicle is currently located outside a preset area according to the map signal, wherein the preset area includes a flammable and explosive area.

[0061] Optionally, for safety consideration, the present application can also avoid dangerous areas such as gas stations, chemical plants and firecracker factories when performing on-road regeneration, which is not limited in the present application.

[0062] Step 1.3, if the vehicle is currently located on the preset road and outside the preset area, determining that the vehicle currently meets the position condition for DPF regeneration.

[0063] Optionally, if the vehicle is currently located on the preset road and outside the preset area, it means that the vehicle is currently located on a road with good traffic conditions and there is no flammable and explosive area around. Therefore, under this condition, the present application can perform PDF regeneration. That is, it is determined that the vehicle currently meets the position condition for PDF regeneration, which is not limited in the present application.

[0064] Optionally, if the vehicle is not currently on the preset road or the vehicle is currently in the preset area, it indicates that the current position of the vehicle is not suitable for PDF regeneration. Therefore, under this condition, the application can determine that the vehicle does not currently meet the position condition for DPF regeneration, and the application does not limit this.

[0065] S300, if only the engine parameter is obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the engine parameter;

[0066] Optionally, the engine parameter can reflect some current operation of the engine. By judging the operation of the engine, it can be determined whether it is currently suitable for DPF regeneration. The application can obtain the engine parameter from the vehicle computer, and the application does not limit this.

[0067] For example, in some optional embodiments, the step of determining whether the vehicle currently meets the condition for DPF regeneration according to the engine parameter in S300 includes steps 2.1, 2.2, 2.3, 2.4, 2.5 and 2.6.

[0068] Step 2.1, determining whether the current speed of the vehicle is greater than a preset speed according to the engine parameter;

[0069] Optionally, generally speaking, the higher the speed, the more suitable for DPF regeneration, because it can provide a high enough temperature. The engine parameter of the application can include the speed, and the speed can be compared with the preset speed. It should be noted that the application does not specifically limit the preset speed, which can be set according to actual needs. For example, the preset speed can be set to 50km / h (50 kilometers per hour) or more, which can be set according to actual needs, and the application does not limit this.

[0070] Step 2.2, determining whether the current load rate of the vehicle is greater than a preset load rate according to the engine parameter;

[0071] Optionally, the process of DPF regeneration requires the engine to have sufficient speed, and the load rate of the vehicle can also reflect the speed of the engine. The application can compare the current load rate in the engine parameter with the preset load rate. It should be noted that the application does not specifically limit the preset load rate, which can be set according to actual needs. For example, the preset load rate is set to 30% or more, which can be set according to actual needs, and the application does not limit this.

[0072] Step 2.3, determining whether the urea level change rate of the vehicle is less than a preset urea change rate according to the engine parameter;

[0073] Optionally, as described above, the process of DPF regeneration requires the vehicle to maintain a relatively high-speed steady operation, and try to avoid fast and slow alternately. The change of urea liquid level has a positive correlation with the change of vehicle speed, and the application can compare the urea liquid level change rate in the engine parameters with the preset urea change rate. It should be noted that the application does not make specific limitations on the preset urea change rate, which can be set according to actual needs. For example, the preset urea change rate is set to be less than 10%, which can be set according to actual needs, and the application does not limit this.

[0074] Step 2.4, according to the engine parameters, determine whether the throttle change rate of the vehicle is less than the preset throttle change rate;

[0075] Optionally, as described above, the process of DPF regeneration requires the vehicle to maintain a relatively high-speed steady operation, and try to avoid fast and slow alternately. The change of urea liquid level has a positive correlation with the change of vehicle speed, and the application can compare the urea liquid level change rate in the engine parameters with the preset urea change rate. It should be noted that the application does not make specific limitations on the preset urea change rate, which can be set according to actual needs. For example, the preset urea change rate is set to be less than 10%, which can be set according to actual needs, and the application does not limit this.

[0076] Step 2.5, according to the engine parameters, determine whether the idle speed ratio of the vehicle in the recent first time range is less than the preset ratio;

[0077] Optionally, as described above, the process of DPF regeneration requires the vehicle to maintain a relatively high-speed steady operation. The idle speed ratio can directly reflect the proportion of the vehicle maintaining low speed in the recent period of time, and the application can compare the idle speed ratio in the engine parameters with the preset ratio. It should be noted that the application does not make specific limitations on the preset ratio, which can be set according to actual needs. For example, the preset ratio is set to be less than 10%, which can be set according to actual needs, and the application does not limit this.

[0078] Step 2.6, if the current vehicle speed of the vehicle is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the throttle change rate is less than the preset throttle change rate, and the idle speed ratio is less than the preset ratio, it is determined that the vehicle currently meets the vehicle condition for PDF regeneration.

[0079] Optionally, when the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the accelerator change rate is less than the preset accelerator change rate, and the idle speed proportion is less than the preset proportion, it is indicated that the vehicle is currently suitable for driving regeneration. Therefore, under this condition, the application can determine that the vehicle currently meets the vehicle condition for PDF regeneration, and subsequent driving regeneration can be performed.

[0080] Optionally, if at least one of the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the accelerator change rate is less than the preset accelerator change rate, and the idle speed proportion is less than the preset proportion is not met, it is indicated that the vehicle is currently not suitable for driving regeneration. Therefore, under this condition, the application can determine that the vehicle currently does not meet the vehicle condition for PDF regeneration.

[0081] S400, if the map signal and the engine parameter are obtained, determining whether the vehicle currently meets the condition for DPF regeneration according to the map signal and the engine parameter.

[0082] Optionally, as described above, the foregoing scheme for determining whether the vehicle currently meets the condition for DPF regeneration according to the map information or the engine parameter alone is given. In order to further improve the accuracy of the application, the application can comprehensively judge the map information and the engine parameter together. Only when the map information and the engine parameter both meet the corresponding conditions described above, it can be determined that the vehicle currently meets the condition for DPF regeneration, and the application does not limit this.

[0083] For example, in some optional embodiments, the determination of whether the vehicle currently meets the condition for DPF regeneration according to the map signal and the engine parameter in S400 includes steps 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, and 3.8.

[0084] Step 3.1, determining whether the vehicle is currently on a preset road according to the map signal, wherein the preset road includes a highway, a national road, or a provincial road;

[0085] Step 3.2, determining whether the vehicle is currently outside a preset area according to the map signal, wherein the preset area includes a flammable and explosive area;

[0086] Step 3.3, determining whether the current vehicle speed of the vehicle is greater than a preset vehicle speed according to the engine parameter;

[0087] Step 3.4, determining whether the current load rate of the vehicle is greater than a preset load rate according to the engine parameters;

[0088] Step 3.5, determining whether the urea level change rate of the vehicle is less than a preset urea change rate according to the engine parameters;

[0089] Step 3.6, determining whether the throttle change rate of the vehicle is less than a preset throttle change rate according to the engine parameters;

[0090] Step 3.7, determining whether the idle proportion of the vehicle in a recent first time range is less than a preset proportion according to the engine parameters;

[0091] Step 3.8, if the vehicle is currently in the preset road and outside the preset area, the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea level change rate is less than the preset urea change rate, the throttle change rate is less than the preset throttle change rate, and the idle proportion is less than the preset proportion, it is determined that the vehicle currently meets the condition for DPF regeneration.

[0092] Optionally, after the foregoing scheme determines that the vehicle currently meets the condition for DPF regeneration, the application can directly issue a corresponding instruction to trigger the DPF to perform on-road regeneration, and the application does not limit this.

[0093] That is, in some optional embodiments, the method further comprises steps 4.1 and 4.2.

[0094] Step 4.1, if it is determined that the vehicle currently meets the condition for DPF regeneration, controlling the DPF to perform a regeneration process, and obtaining new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold;

[0095] Step 4.2, if it is determined that the vehicle currently does not meet the condition for DPF regeneration, controlling the DPF to stop performing a regeneration process or prohibiting the DPF from performing a regeneration process this time, and obtaining at least one of new map signals and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold.

[0096] Optionally, as long as the carbon load still exceeds the first preset threshold, the application can continue to repeatedly collect map information and / or engine information for the above judgment. Therefore, in the process of each judgment, the current DPF regeneration may or may not be in progress, and the following different treatments need to be made:

[0097] 1. If the DPF regeneration is currently being performed and the new determination result is that the vehicle currently meets the condition for performing the DPF regeneration, the DPF regeneration can be continued, then the new map signal and / or the engine parameter are collected, and then it is determined again whether the vehicle meets the condition for performing the DPF regeneration, and the cycle is repeated.

[0098] 2. If the DPF regeneration is currently being performed and the new determination result is that the vehicle currently does not meet the condition for performing the DPF regeneration, the DPF regeneration can be suspended, then the new map signal and / or the engine parameter are collected, and then it is determined again whether the vehicle meets the condition for performing the DPF regeneration, and the cycle is repeated.

[0099] 3. If the DPF regeneration is not currently being performed and the new determination result is that the vehicle currently meets the condition for performing the DPF regeneration, the DPF regeneration can be performed, then the new map signal and / or the engine parameter are collected, and then it is determined again whether the vehicle meets the condition for performing the DPF regeneration, and the cycle is repeated.

[0100] 4. If the DPF regeneration is not currently being performed and the new determination result is that the vehicle currently does not meet the condition for performing the DPF regeneration, the DPF regeneration can be prohibited, then the new map signal and / or the engine parameter are collected, and then it is determined again whether the vehicle meets the condition for performing the DPF regeneration, and the cycle is repeated. In order to make the application closer to the actual needs, in this case, the current carbon load can be further considered to select a suitable mode. For example, if the DPF regeneration is not currently being performed and the new determination result is that the vehicle currently does not meet the condition for performing the DPF regeneration, but the current carbon load exceeds the second carbon load threshold (the second carbon load threshold is greater than the first carbon load threshold), the DPF regeneration needs to be forced to avoid the DPF blockage. However, if the DPF regeneration is not currently being performed and the new determination result is that the vehicle currently does not meet the condition for performing the DPF regeneration, and the current carbon load does not exceed the second carbon load threshold, the DPF regeneration can be prohibited.

[0101] Optionally, as described above, the foregoing scheme is that once it is determined that the vehicle currently meets the condition for performing the DPF regeneration, the DPF regeneration can be directly performed. In order to meet the actual needs more, the application can also determine whether to perform the DPF regeneration in combination with the intention of the driver (i.e., the user).

[0102] That is, in some optional embodiments, the method further comprises steps 5.1 and 5.2.

[0103] Step 5.1, if the current control instruction of the user is obtained and the control instruction is: allowing DPF regeneration, then controlling the DPF to perform a regeneration process, and obtaining at least one of a new map signal and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold.

[0104] Step 5.2, if the current control instruction of the user is obtained and the control instruction is: prohibiting DPF regeneration, then controlling the DPF to stop performing a regeneration process or prohibiting the DPF from performing a regeneration process this time, and obtaining at least one of a new map signal and engine parameters, and repeating the cycle until the carbon load of the vehicle does not exceed the first preset threshold.

[0105] That is, no matter whether the aforementioned condition of whether the vehicle currently meets the condition of performing DPF regeneration is determined, the will of the driver needs to be given priority, which includes the following cases:

[0106] 1. It is determined that the vehicle currently meets the condition of performing DPF regeneration and the driver allows DPF regeneration, then DPF regeneration is performed, and then a new map signal and / or engine parameters are obtained, and then it is determined whether the vehicle meets the condition of performing DPF regeneration and whether the driver allows DPF regeneration, and the cycle is repeated.

[0107] 2. It is determined that the vehicle currently meets the condition of performing DPF regeneration and the driver prohibits DPF regeneration, then DPF regeneration is stopped or prohibited (if DPF regeneration is currently being performed, it is stopped, and if DPF regeneration is not currently being performed, it is prohibited), and then a new map signal and / or engine parameters are obtained, and then it is determined whether the vehicle meets the condition of performing DPF regeneration and whether the driver allows DPF regeneration, and the cycle is repeated.

[0108] 3. It is determined that the vehicle currently does not meet the condition of performing DPF regeneration and the driver allows DPF regeneration, then DPF regeneration is performed, and then a new map signal and / or engine parameters are obtained, and then it is determined whether the vehicle meets the condition of performing DPF regeneration and whether the driver allows DPF regeneration, and the cycle is repeated.

[0109] 4. It is determined that the vehicle currently does not meet the condition of performing DPF regeneration and the driver prohibits DPF regeneration, then DPF regeneration is stopped or prohibited (if DPF regeneration is currently being performed, it is stopped, and if DPF regeneration is not currently being performed, it is prohibited), and then a new map signal and / or engine parameters are obtained, and then it is determined whether the vehicle meets the condition of performing DPF regeneration and whether the driver allows DPF regeneration, and the cycle is repeated.

[0110] Optionally, in some optional embodiments, the method further comprises: step 6.1;

[0111] Step 6.1, if the vehicle is determined not to meet the condition for DPF regeneration for N consecutive times, the value of the first carbon load threshold is reduced.

[0112] Optionally, N is an integer greater than 1, if the vehicle is determined not to meet the condition for DPF regeneration for multiple times after the carbon load of the vehicle exceeds the first carbon load threshold, it is possible that the first carbon load threshold is set too high, so that the vehicle cannot perform DPF regeneration. Therefore, in order to ensure that the vehicle can perform DPF regeneration in time and effectively, the first carbon load threshold can be reduced, and then new map information and / or engine parameters are collected for judgment, which is not limited in the present application.

[0113] Optionally, as described above, the above scheme is mainly for on-road regeneration. The present application can also provide a scheme suitable for on-station regeneration. Because on-station regeneration is performed in place, it does not involve working conditions and road conditions. As long as the vehicle is not in a flammable and explosive area, the carbon load is within the range set for on-station regeneration, and the driver presses the regeneration switch (i.e. allows DPF regeneration), on-station regeneration can be performed, and the on-station regeneration process is not suspended due to working condition factors.

[0114] As shown in Figure 2 The present application provides a DPF regeneration control device, comprising: a data obtaining unit 100, a first judgment unit 200, a second judgment unit 300 and a third judgment unit 400;

[0115] The data obtaining unit 100 is configured to obtain at least one of a current map signal and a current engine parameter of the vehicle when the carbon load of the vehicle exceeds a first carbon load threshold;

[0116] The first judgment unit 200 is configured to determine whether the vehicle currently meets the condition for DPF regeneration according to the map signal if only the map signal is obtained;

[0117] The second judgment unit 300 is configured to determine whether the vehicle currently meets the condition for DPF regeneration according to the engine parameter if only the engine parameter is obtained;

[0118] The third judgment unit 400 is configured to determine whether the vehicle currently meets the condition for DPF regeneration according to the map signal and the engine parameter if both the map signal and the engine parameter are obtained.

[0119] Optionally, in some optional embodiments, the first judgment unit 200 comprises: a road judgment subunit, a region judgment subunit and a first result subunit;

[0120] The road judgment subunit is configured to determine, according to the map signal, whether the vehicle is currently on a preset road, wherein the preset road includes a highway, a national road, or a provincial road.

[0121] The region judgment subunit is configured to determine, according to the map signal, whether the vehicle is currently outside a preset region, wherein the preset region includes a flammable and explosive region.

[0122] The first result subunit is configured to determine that the vehicle currently meets a position condition for PDF regeneration if the vehicle is currently on the preset road and outside the preset region.

[0123] Optionally, in some optional embodiments, the second judgment unit 300 includes a vehicle speed judgment subunit, a load judgment subunit, a urea judgment subunit, an accelerator judgment subunit, an idling speed judgment subunit, and a second result subunit.

[0124] The vehicle speed judgment subunit is configured to determine, according to the engine parameter, whether a current vehicle speed of the vehicle is greater than a preset vehicle speed.

[0125] The load judgment subunit is configured to determine, according to the engine parameter, whether a current load rate of the vehicle is greater than a preset load rate.

[0126] The urea judgment subunit is configured to determine, according to the engine parameter, whether a urea liquid level change rate of the vehicle is less than a preset urea change rate.

[0127] The accelerator judgment subunit is configured to determine, according to the engine parameter, whether an accelerator change rate of the vehicle is less than a preset accelerator change rate.

[0128] The idling speed judgment subunit is configured to determine, according to the engine parameter, whether an idling speed proportion of the vehicle in a recent first time range is less than a preset proportion.

[0129] The second result subunit is configured to determine that the vehicle currently meets a vehicle condition for PDF regeneration if the current vehicle speed of the vehicle is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the accelerator change rate is less than the preset accelerator change rate, and the idling speed proportion is less than the preset proportion.

[0130] Optionally, in some optional embodiments, the third judgment unit 400 includes a road judgment subunit, a region judgment subunit, a vehicle speed judgment subunit, a load judgment subunit, a urea judgment subunit, an accelerator judgment subunit, an idling speed judgment subunit, and a third result subunit.

[0131] The road judging subunit is configured to determine whether the vehicle is currently on a preset road according to the map signal, wherein the preset road comprises a highway, a national road, or a provincial road.

[0132] The region judging subunit is configured to determine whether the vehicle is currently outside a preset region according to the map signal, wherein the preset region comprises a flammable and explosive region.

[0133] The vehicle speed judging subunit is configured to determine whether a current vehicle speed of the vehicle is greater than a preset vehicle speed according to the engine parameter.

[0134] The load judging subunit is configured to determine whether a current load rate of the vehicle is greater than a preset load rate according to the engine parameter.

[0135] The urea judging subunit is configured to determine whether a urea liquid level change rate of the vehicle is less than a preset urea change rate according to the engine parameter.

[0136] The throttle judging subunit is configured to determine whether a throttle change rate of the vehicle is less than a preset throttle change rate according to the engine parameter.

[0137] The idle speed judging subunit is configured to determine whether an idle speed proportion of the vehicle in a first time range is less than a preset proportion according to the engine parameter.

[0138] The third result subunit is configured to determine that the vehicle currently satisfies a condition for performing DPF regeneration if the vehicle is currently on the preset road and outside the preset region, the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea liquid level change rate is less than the preset urea change rate, the throttle change rate is less than the preset throttle change rate, and the idle speed proportion is less than the preset proportion.

[0139] Optionally, in some optional embodiments, the method further comprises a first control unit and a second control unit.

[0140] The first control unit is configured to control the DPF to perform a regeneration process if it is determined that the vehicle currently satisfies the condition for performing DPF regeneration, and to obtain a new map signal and engine parameter, and to repeat the above process until the carbon load of the vehicle does not exceed the first preset threshold.

[0141] The second control unit is configured to, if it is determined that the vehicle does not currently meet the condition for DPF regeneration, control the DPF to stop performing the regeneration process or prohibit the DPF from performing the regeneration process this time, and obtain at least one of a new map signal and an engine parameter, and repeat the above operations until the carbon loading of the vehicle is less than or equal to the first preset threshold value.

[0142] Optionally, in some optional embodiments, the method further comprises a third control unit and a fourth control unit.

[0143] The third control unit is configured to, if a current control instruction of a user is obtained and the control instruction is to allow DPF regeneration, control the DPF to perform the regeneration process, and obtain at least one of a new map signal and an engine parameter, and repeat the above operations until the carbon loading of the vehicle is less than or equal to the first preset threshold value.

[0144] The fourth control unit is configured to, if the current control instruction of the user is obtained and the control instruction is to prohibit DPF regeneration, control the DPF to stop performing the regeneration process or prohibit the DPF from performing the regeneration process this time, and obtain at least one of a new map signal and an engine parameter, and repeat the above operations until the carbon loading of the vehicle is less than or equal to the first preset threshold value.

[0145] Optionally, in some optional embodiments, the method further comprises a threshold adjustment unit.

[0146] The threshold adjustment unit is configured to, if it is determined that the vehicle does not currently meet the condition for DPF regeneration for N consecutive times, reduce the value of the first carbon loading threshold value.

[0147] The application provides a computer readable storage medium, which stores a program, and the program is executed by a processor to implement the DPF regeneration control method.

[0148] As shown in Figure 3 The application provides an electronic device 70, which comprises at least one processor 701 and at least one memory 702 connected with the processor 701 and a bus 703; the processor 701 and the memory 702 complete communication with each other through the bus 703; the processor 701 is used to call program instructions in the memory 702 to execute the DPF regeneration control method.

[0149] In this disclosure, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0150] Each of the embodiments in the present specification is described in a related manner, and the same or similar parts among the embodiments can be referred to each other. Each of the embodiments focuses on the difference from other embodiments. In particular, the system embodiments are described simply because they are substantially similar to the method embodiments, and the related parts can be referred to the description of the method embodiments.

[0151] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features disclosed in the present application.

[0152] The above description is merely preferred embodiments of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, and the like within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A DPF regeneration control method, characterized in that, include: When the carbon load of a vehicle exceeds the first carbon load threshold, at least one of the vehicle's current map signal and current engine parameters is obtained. If only the map signal is obtained, then determine whether the vehicle currently meets the conditions for DPF regeneration based on the map signal; If only the engine parameters are obtained, then determine whether the vehicle currently meets the conditions for DPF regeneration based on the engine parameters; If the map signal and the engine parameters are obtained, then determine whether the vehicle currently meets the conditions for DPF regeneration based on the map signal and the engine parameters; The step of determining whether the vehicle currently meets the conditions for DPF regeneration based on the map signal and the engine parameters includes: Based on the map signal, it is determined whether the vehicle is currently on a preset road, wherein the preset road includes: expressway, national highway or provincial highway; Based on the map signal, determine whether the vehicle is currently outside a preset area, wherein the preset area includes flammable and explosive areas; Based on the engine parameters, determine whether the current vehicle speed is greater than the preset speed; Based on the engine parameters, determine whether the current load rate of the vehicle is greater than the preset load rate; Based on the engine parameters, determine whether the urea level change rate of the vehicle is less than the preset urea change rate; Based on the engine parameters, determine whether the throttle change rate of the vehicle is less than the preset throttle change rate; Based on the engine parameters, determine whether the vehicle's idling percentage within the most recent first time range is less than a preset percentage; If the vehicle is currently outside the preset road and the preset area, the current vehicle speed is greater than the preset vehicle speed, the current load rate is greater than the preset load rate, the urea level change rate is less than the preset urea change rate, the throttle change rate is less than the preset throttle change rate, and the idle speed percentage is less than the preset percentage, then it is determined that the vehicle currently meets the conditions for DPF regeneration.

2. The method according to claim 1, characterized in that, The method further includes: If it is determined that the vehicle currently meets the conditions for DPF regeneration, the DPF is controlled to perform the regeneration process, and new map signals and engine parameters are obtained. This process is repeated until the carbon load of the vehicle does not exceed the first carbon load threshold. If it is determined that the vehicle does not currently meet the conditions for DPF regeneration, then the DPF is controlled to stop the regeneration process or the DPF is prohibited from performing the regeneration process for this time, and at least one of the new map signal and engine parameters is obtained. This cycle is repeated until the carbon load of the vehicle does not exceed the first carbon load threshold.

3. The method according to claim 1, characterized in that, The method further includes: If the user's current control command is obtained and the control command is: allow DPF regeneration, then control the DPF to perform the regeneration process and obtain at least one of the new map signal and engine parameters. This process is repeated until the carbon load of the vehicle does not exceed the first carbon load threshold. If the user's current control command is obtained and the control command is: prohibit DPF regeneration, then the DPF is controlled to stop the regeneration process or the DPF is prohibited from performing the regeneration process. At least one of the new map signal and engine parameters is obtained. This cycle is repeated until the carbon load of the vehicle does not exceed the first carbon load threshold.

4. The method according to claim 1, characterized in that, The method further includes: If it is determined N times consecutively that the vehicle does not currently meet the conditions for DPF regeneration, then the value of the first carbon load threshold is reduced.

5. A DPF regeneration control device for performing the method according to any one of claims 1 to 4, characterized in that, include: The system comprises a data acquisition unit, a first judgment unit, a second judgment unit, and a third judgment unit. The data acquisition unit is used to obtain at least one of the vehicle's current map signal and current engine parameters when the vehicle's carbon load exceeds a first carbon load threshold. The first determination unit is used to determine whether the vehicle currently meets the conditions for DPF regeneration based on the map signal if only the map signal is obtained. The second determination unit is used to determine whether the vehicle currently meets the conditions for DPF regeneration based on the engine parameters if only the engine parameters are obtained. The third determination unit is used to determine whether the vehicle currently meets the conditions for DPF regeneration based on the map signal and the engine parameters if the map signal and the engine parameters are obtained.

6. A computer-readable storage medium having a program stored thereon, characterized in that, When the program is executed by the processor, it implements the DPF regeneration control method as described in any one of claims 1 to 4.

7. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory and bus connected to the processor; wherein the processor and the memory communicate with each other through the bus; the processor is used to call program instructions in the memory to execute the DPF regeneration control method as described in any one of claims 1 to 4.

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