Gpf on-the-spot regeneration method, device and medium of extended-range vehicle

Abstract

The application provides a GPF in-place regeneration method, equipment and medium of a range-extending vehicle. When it is detected that a target vehicle is in a parking waiting state, environmental safety information of the target vehicle is determined. Then, after the target vehicle is in a parking state, if it is detected that there is a GPF parking regeneration demand, it is judged whether the safety environment regeneration condition is met according to the environmental safety information. If yes, the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition. In the case that the range extender works, the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF. The working condition adjustment based on the GPF temperature is realized. The situation that the regeneration is interrupted or fails due to too high or too low temperature in the prior art is solved. Moreover, no manual operation and manual supervision are needed. The method judges whether the safety environment regeneration condition is met by obtaining the environmental safety information. It is ensured that the GPF regeneration is performed under the safety environment of the vehicle. The safety in the regeneration process is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a GPF on-site regeneration method, device and medium of a range extended vehicle. BACKGROUND

[0002] With the popularization of range extended vehicles, the use scenarios of modern vehicles are increasingly rich, and range extended vehicles not only need to save energy, but also need to shoulder the heavy responsibility of emission reduction. The control strategy of GPF (Gasoline Particulate Filter) on-site regeneration of range extended vehicles can reduce the device of particulate matter in emission, and the on-site regeneration process can also realize continuous charging of the battery of the range extended vehicle, achieving the effect of energy saving and emission reduction.

[0003] However, in the prior art, the temperature control of the GPF regeneration of traditional fuel vehicles is poor, and the regeneration interruption or on-site regeneration failure may occur. Secondly, the driver needs to perform some operations on the vehicle during on-site regeneration, and then waits for the completion of regeneration. The operation of GPF regeneration is relatively cumbersome, there is a situation of regeneration exit caused by misoperation, and the driver needs to supervise the vehicle during on-site regeneration, which wastes the time of the driver and the passenger. In addition, the internal temperature during regeneration may reach nearly 1000℃, which may cause other objects in the surrounding environment to be ignited by high temperature, and other safety hazards. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, the present application aims to provide a GPF on-site regeneration method, device and medium of a range extended vehicle, which solves the regeneration interruption or failure caused by temperature in the prior art, and does not require human operation and human supervision, thereby improving the safety during the regeneration process.

[0005] The embodiment of the present application provides a GPF on-site regeneration method of a range extended vehicle, comprising:

[0006] When it is detected that the target vehicle is in a waiting-to-stop driving state, environmental safety information of the target vehicle is determined, wherein the environmental safety information comprises a risk level of external flammable objects in the driving route of the target vehicle, whether the target vehicle is located in a risk area, and whether there is another risk transport vehicle;

[0007] After the target vehicle is in a stopped state, if it is detected that the target vehicle has a GPF parked regeneration demand, it is judged whether the target vehicle meets a safe environment regeneration condition based on the environmental safety information;

[0008] In the case where the safe environment regeneration condition is met, the range extender of the target vehicle is controlled to enter a GPF parked regeneration working condition, and during the working of the range extender, the GPF parked regeneration working condition is adjusted according to the real-time temperature of the GPF.

[0009] Optionally, judging whether the target vehicle meets the safe environment regenerating condition based on the environment safety information comprises:

[0010] If the risk level of the external flammable material is lower than a preset level, the target vehicle is not located in a risk area, and there is no other risk transport vehicle, it is determined that the target vehicle meets the safe environment regenerating condition.

[0011] Optionally, before controlling the range extender of the target vehicle to enter the GPF parking regenerating working condition, the method further comprises:

[0012] acquiring an initial electric quantity of the target vehicle, and judging whether the initial electric quantity is lower than a preset charging quantity threshold value;

[0013] If yes, acquiring a current environment temperature of the target vehicle and a current water temperature of the range extender;

[0014] in a case where the current water temperature is equal to the current environment temperature, determining that the target vehicle is in a cold machine state, in a case where the current water temperature is greater than the current environment temperature and less than a preset hot machine temperature, determining that the target vehicle is in an incomplete hot machine state, and in a case where the current water temperature is greater than the preset hot machine temperature, determining that the target vehicle is in a hot machine state;

[0015] when the target vehicle is in the cold machine state or the incomplete hot machine state, controlling a catalyst of the target vehicle to enter a heating working condition, and controlling the range extender to enter a hot machine working condition until the current water temperature reaches a set temperature.

[0016] Optionally, during the working of the range extender, the GPF parking regenerating working condition is adjusted according to a real-time temperature of the GPF, comprising:

[0017] acquiring the real-time temperature of the GPF of the target vehicle, if the real-time temperature of the GPF is greater than a preset first upper limit temperature and less than a preset second upper limit temperature, and a duration exceeds a preset time length, and the real-time temperature of the GPF presents a continuous rising trend, the power point of the range extender is reduced to a preset first compensation value to adjust the GPF parking regenerating working condition; and

[0018] if the real-time temperature of the GPF is greater than the preset second upper limit temperature, the power point of the range extender is reduced to a preset second compensation value to adjust the GPF parking regenerating working condition;

[0019] wherein the preset first compensation value is greater than the preset second compensation value.

[0020] Optionally, during the operation of the range extender, the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF, and the method further comprises the following steps:

[0021] If the real-time temperature of the GPF is less than a preset first lower limit temperature and greater than a preset second lower limit temperature, and the duration exceeds a preset time length, and the real-time temperature of the GPF shows a continuous decreasing trend, the power point of the range extender is raised to a preset third compensation value to adjust the GPF parking regeneration working condition; and

[0022] If the real-time temperature of the GPF is less than the preset second lower limit temperature, the power point of the range extender is raised to a preset fourth compensation value to adjust the GPF parking regeneration working condition.

[0023] The preset third compensation value is less than the preset fourth compensation value.

[0024] Optionally, after the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition, the method further comprises the following steps:

[0025] When it is detected that the GPF parking regeneration working condition is completed, the range extender is controlled to operate in turn at each preset cooling power and for a running time corresponding to each preset cooling power, and the range extender is turned off after each preset cooling power is operated.

[0026] Optionally, before the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition, the method further comprises the following steps:

[0027] Based on the power point of the range extender in the GPF parking regeneration working condition, a predicted power generation amount of the GPF parking regeneration working condition is determined, and if the sum of the predicted power generation amount and an initial power amount of the target vehicle exceeds a set power amount, a stationary regeneration protection mode is started;

[0028] Correspondingly, after the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition, the method further comprises the following steps:

[0029] Based on the stationary regeneration protection mode, a current total power generation amount of the GPF parking regeneration working condition is obtained, and when the sum of the current total power generation amount and the initial power amount reaches a preset value, the range extender is controlled to exit the GPF parking regeneration working condition and enter an idle speed no power generation mode, or the range extender is adjusted to a regeneration no power supply state.

[0030] Optionally, before the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition, the method further comprises the following steps:

[0031] A regeneration mode selection interface is displayed based on a multimedia system of the target vehicle.

[0032] obtaining a target mode selected by a user in the regeneration mode selection interface, wherein the target mode is a person-off parking regeneration mode or a person-in parking regeneration mode;

[0033] Correspondingly, if the target mode is the person-off parking regeneration mode, after sequentially controlling the range extender to operate at each preset cooling power and a running time corresponding to each preset cooling power, the method further comprises:

[0034] controlling the target vehicle to enter a generator reverse-drag mode, so as to stably operate the engine at a set speed for a set time through generator reverse-drag, so that the intake air cools the engine.

[0035] The embodiment of the present application also provides an electronic device, which comprises:

[0036] a processor and a memory;

[0037] The processor is configured to execute the steps of the GPF on-the-spot regeneration method of the range extender vehicle by calling programs or instructions stored in the memory.

[0038] The embodiment of the present application also provides a computer readable storage medium, which stores programs or instructions, and the programs or instructions make a computer execute the steps of the GPF on-the-spot regeneration method of the range extender vehicle.

[0039] In summary, the present application provides a GPF on-the-spot regeneration method of a range extender vehicle, which determines environmental safety information of a target vehicle when detecting that the target vehicle is in a waiting-to-stop driving state, and then, after the target vehicle is in a stopped state, if it is detected that there is a GPF parking regeneration demand, it is determined whether the safety environment regeneration condition is met according to the environmental safety information, if yes, the range extender of the target vehicle is controlled to enter a GPF parking regeneration working condition, and the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF in the case that the range extender is working, which realizes the working condition adjustment based on the temperature of the GPF, solves the situation that the regeneration is interrupted or failed due to too high or too low temperature in the prior art, and does not need human operation and human supervision, the method determines whether the safety environment regeneration condition is met by obtaining the environmental safety information, ensures that the GPF regeneration is performed in a safe environment, and improves the safety in the regeneration process. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0041] Figure 1 is a flowchart of a GPF in-place regeneration method of a range extended vehicle provided by an embodiment of the present application;

[0042] Figure 2 is a GPF cooling process schematic diagram provided by an embodiment of the present application;

[0043] Figure 3 is a structural schematic diagram of an electronic device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0044] The present application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings.

[0045] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0046] As mentioned in the background, in order to solve the problems in the prior art, the present application provides a GPF in-place regeneration method of a range extended vehicle, which can be executed by a GPF in-place regeneration device of a range extended vehicle, and the GPF in-place regeneration device of the range extended vehicle can be integrated in an electronic device such as a domain controller or a vehicle control unit (VCU) of the vehicle. Figure 1 is a flowchart of a GPF in-place regeneration method of a range extended vehicle provided by an embodiment of the present application. Referring to Figure 1 , the GPF in-place regeneration method of the range extended vehicle specifically includes:

[0047] S110, when it is detected that the target vehicle is in a waiting-to-stop driving state, determining the environmental safety information of the target vehicle, wherein the environmental safety information includes the risk level of external flammable materials in the driving route of the target vehicle, whether the target vehicle is located in a risk area, and whether there is other risk transport vehicle.

[0048] The to-be-parked traveling state can refer to a state in which the vehicle is traveling and has a parking intention. For example, the VCU can determine that the target vehicle is in the to-be-parked traveling state when it is detected that the current speed of the target vehicle is less than a preset low-speed threshold. Alternatively, the VCU can determine that the target vehicle is in the to-be-parked traveling state when it is detected that the target vehicle is in reverse gear and is in the process of parking. For example, the preset low-speed threshold can be 10 km / h.

[0049] Specifically, when it is detected that the target vehicle is in the to-be-parked traveling state, it can be determined that the target vehicle has a parking intention, and at this time, the environmental safety information of the target vehicle can be determined. The environmental safety information can include the risk level of external flammable objects in the traveling path of the target vehicle, whether the target vehicle is located in a risk area, and whether there is another risk transport vehicle.

[0050] It should be noted that the purpose of determining the environmental safety information of the target vehicle is to avoid high-temperature ignition of surrounding objects during GPF regeneration, because the internal temperature of the carrier can reach about 1000°C during GPF regeneration, and high-temperature ignition of surrounding objects can cause a fire. Therefore, in order to avoid high-temperature ignition of surrounding objects during GPF regeneration, the environmental safety information can be obtained to determine whether the target vehicle is in a safe environment, thereby ensuring the safety of GPF regeneration.

[0051] In this embodiment, when it is detected that the target vehicle is in the to-be-parked traveling state, the VCU can start the 360° camera in the target vehicle, obtain video acquisition information of the target vehicle in the traveling path through the camera, and then determine the external flammable objects and the risk level of the external flammable objects through the video acquisition information. The external flammable objects can be flammable objects located around the target vehicle (e.g., a 1-meter area centered on the target vehicle) in the traveling path of the target vehicle, such as gasoline barrels, electrical appliances, alcohol, etc. The risk level can be used to describe the probability of high-temperature ignition of the external flammable objects. The higher the risk level, the greater the probability of high-temperature ignition of the external flammable objects, that is, the external flammable objects are more likely to be ignited during GPF regeneration of the target vehicle.

[0052] In addition, the current location of the target vehicle can be determined by positioning the target vehicle, and the marker positions of the risk areas can be determined according to the map information, and then it can be determined whether the target vehicle is located in a risk area based on the current location and the marker positions of the risk areas. The risk area can be a flammable and explosive area, such as a gas station, a hydrogen filling station, a charging station, etc.

[0053] And, the front camera and the driving recorder of the target vehicle can be used to identify other parked vehicles around the target vehicle during the travel of the target vehicle, to determine whether there are other risk transport vehicles. The risk transport vehicle can be a dangerous transport vehicle, such as a vehicle transporting flammable and explosive objects such as petroleum chemicals, compressed gas, organic peroxide, etc.

[0054] Specifically, after obtaining the risk level of the external flammable object during the travel of the target vehicle, and determining whether the target vehicle is located in the risk area and whether there are other risk transport vehicles, the environmental safety information can be constructed and written into the preset storage space in the target vehicle, so as to call the environmental safety information from the preset storage space for judgment when the target vehicle has a GPF parked regeneration demand. And, after detecting that the target vehicle is started again, the environmental safety information can be erased in the preset storage space, so as to re-identify the environmental safety information when the target vehicle is detected to be in the parked travel state next time.

[0055] S120, after the target vehicle is in the parked state, if it is detected that the target vehicle has a GPF parked regeneration demand, the environmental safety information is used to determine whether the target vehicle meets the safe environmental regeneration condition.

[0056] Specifically, the VCU can detect whether the target vehicle is switched from the parked travel state to the parked state after obtaining the environmental safety information, and if so, further detect whether the target vehicle has a GPF parked regeneration demand, i.e., whether the target vehicle has a demand for performing GPF regeneration in the parked state.

[0057] For example, the EMS (Engine Management System) can determine whether the target vehicle has a GPF parked regeneration demand according to the carbon load in the GPF, such as if it is determined that the carbon load exceeds a set amount, it can be determined that there is a GPF parked regeneration demand. Then, the EMS can send information to the VCU to inform the VCU that there is a GPF parked regeneration demand.

[0058] Further, the VCU can read the environmental safety information from the preset storage space in the target vehicle, and determine whether the safe environmental regeneration condition is met according to the environmental safety information. The safe environmental regeneration condition can be a condition that the vehicle can safely perform GPF parked regeneration.

[0059] In a specific embodiment, determining whether the target vehicle meets the safe environmental regeneration condition based on the environmental safety information includes: if the risk level of the external flammable object is lower than a preset level, the target vehicle is not located in the risk area, and there is no other risk transport vehicle, it is determined that the target vehicle meets the safe environmental regeneration condition.

[0060] That is, the safety environment regeneration condition can be that the risk level of the external flammable material is lower than a preset level, the target vehicle is not located in a risk area, and there is no other risk transport vehicle. In this embodiment, when the safety environment regeneration condition is met, the VCU can further control the range extender to enter the GPF parking regeneration working condition, that is, to perform GPF parking regeneration.

[0061] Of course, if the risk level of the external flammable material is not lower than the preset level, or the target vehicle is located in a risk area, or there is another risk transport vehicle, it can be determined that the target vehicle does not meet the safety environment regeneration condition, at this time, a warning prompt information can be generated and sent to the multimedia device for display to prompt that GPF parking regeneration is prohibited at this time.

[0062] Through the above-mentioned embodiments, accurate judgment of the safety environment regeneration condition can be realized, so that the GPF parking regeneration working condition is started when the risk level of the external flammable material is low, the vehicle is not in a risk area, and there is no other risk transport vehicle around, thereby ensuring the safety of GPF parking regeneration.

[0063] It should be noted that the above-mentioned judgment of whether the safety environment regeneration condition is met based on the environment safety information can not only be applied to the GPF parking regeneration scene, but also be applied to other scenes, which are not limited by the present embodiment. For example, after detecting that the target vehicle is in a parking state, it can be judged whether the safety environment regeneration condition is met, and if not, a flammable risk prompt information is generated to prompt the user to stop smoking or change the parking location.

[0064] S130, in the case where the safety environment regeneration condition is met, controlling the range extender of the target vehicle to enter the GPF parking regeneration working condition, and adjusting the GPF parking regeneration working condition according to the real-time temperature of the GPF during the working of the range extender.

[0065] Specifically, the VCU can control the range extender to enter the GPF parking regeneration working condition in the case where the safety environment regeneration condition is met. The GPF parking regeneration working condition can be that the range extender works at a preset power point (such as 20kW) to realize GPF regeneration.

[0066] In a specific embodiment, before controlling the range extender of the target vehicle to enter the GPF parking regeneration condition, it also includes: obtaining the initial power of the target vehicle and determining whether the initial power is lower than a preset charge threshold; if so, obtaining the current ambient temperature of the target vehicle and the current water temperature of the range extender; when the current water temperature is equal to the current ambient temperature, determining that the target vehicle is in a cold engine state; when the current water temperature is greater than the current ambient temperature and less than a preset hot engine temperature, determining that the target vehicle is in an incomplete hot engine state; when the current water temperature is greater than the preset hot engine temperature, determining that the target vehicle is in a hot engine state; when the target vehicle is in a cold engine state or an incomplete hot engine state, controlling the catalyst of the target vehicle to enter a heating condition, and controlling the range extender to enter a hot engine condition, until the current water temperature reaches the set temperature.

[0067] The initial charge level may be the battery charge level before the GPF enters the parking regeneration mode. The preset charge level threshold may be a preset critical value of charge allowed for charging of the vehicle, such as 80%.

[0068] If the initial charge level is not less than the preset charge level threshold, it indicates that the target vehicle's battery level is sufficient and does not require charging, and there is no need to control the range extender to enter the GPF parking regeneration mode. If the initial charge level is less than the preset charge level threshold, it indicates that the target vehicle can be charged at this time, and further, it can be determined whether the range extender needs to be warmed up before entering the GPF parking regeneration mode.

[0069] Specifically, the current ambient temperature of the target vehicle and the current water temperature of the range extender can be obtained. If the current water temperature is equal to the current ambient temperature, the target vehicle is in a cold state. If the current water temperature is greater than the current ambient temperature and less than a preset warm-up temperature, the target vehicle is not fully warmed up. If the current temperature is greater than the preset warm-up temperature, the target vehicle is in a warm-up state. The preset warm-up temperature can be a preset critical temperature for determining that the vehicle is in a warm-up state, such as 70°C.

[0070] When the target vehicle is in a cold state or an incompletely heated state, the catalyst of the target vehicle can be controlled to enter a heating state first, and then the range extender can be controlled to enter a heating state until the current water temperature of the range extender reaches a set temperature, for example, 85°C.

[0071] In the above embodiment, before controlling the range extender to enter the GPF parking regeneration state, it is first determined whether the vehicle's power allows charging, and then whether the vehicle is in a warm-up state. If the vehicle is not in a warm-up state, the vehicle is first controlled to warm up, thereby avoiding the situation where the range extender is damaged due to excessive temperature rise caused by performing GPF parking regeneration in a non-warm-up state.

[0072] In the embodiment, the VCU can also acquire the real-time temperature of the GPF, i.e., the internal temperature of the GPF, during the process in which the range extender works to realize the GPF parking regeneration, and then adjust the GPF parking regeneration working condition in real time through the real-time temperature of the GPF, i.e., adjust the power point of the range extender. For example, the power point of the range extender can be lowered when the real-time temperature of the GPF is high, so as to lower the real-time temperature of the GPF, and the power point of the range extender can be raised when the real-time temperature of the GPF is low, so as to raise the real-time temperature of the GPF.

[0073] In a specific implementation, during the process in which the range extender works, the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF, including: acquiring the real-time temperature of the GPF of the target vehicle, if the real-time temperature of the GPF is greater than a preset first upper limit temperature and less than a preset second upper limit temperature, and the duration exceeds a preset time length, and the real-time temperature of the GPF presents a continuous rising trend, the power point of the range extender is lowered to a preset first compensation value, so as to adjust the GPF parking regeneration working condition; and if the real-time temperature of the GPF is greater than the preset second upper limit temperature, the power point of the range extender is lowered to a preset second compensation value, so as to adjust the GPF parking regeneration working condition.

[0074] Wherein, the preset first upper limit temperature is less than the preset second upper limit temperature, and the preset first compensation value is greater than the preset second compensation value. For example, the preset first upper limit temperature can be 620℃, the preset second upper limit temperature can be 720℃, the preset first compensation value can be 19kW, and the preset second compensation value can be 17kW.

[0075] That is, when the real-time temperature of the GPF is greater than the preset first upper limit temperature and less than the preset second upper limit temperature, and the duration exceeds the preset time length, and the real-time temperature of the GPF presents a continuous rising trend, the power point of the range extender can be lowered to the preset first compensation value. And when the real-time temperature of the GPF is greater than the preset second upper limit temperature, the power point of the range extender can be lowered to the preset second compensation value.

[0076] In this way, when the real-time temperature of the GPF is high, the power point of the range extender can be lowered to adjust the GPF parking regeneration working condition to a regeneration working condition with lower load, so as to lower the temperature during GPF regeneration, control the GPF parking regeneration temperature within a reasonable range, and avoid the situation that the regeneration stops or fails due to excessively high temperature.

[0077] In another specific embodiment, during the operation of the range extender, the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF, and further comprises: if the real-time temperature of the GPF is less than a preset first lower limit temperature and greater than a preset second lower limit temperature, and the duration exceeds a preset time length, and the real-time temperature of the GPF shows a continuous decreasing trend, the power point of the range extender is increased to a preset third compensation value to adjust the GPF parking regeneration working condition; and if the real-time temperature of the GPF is less than the preset second lower limit temperature, the power point of the range extender is increased to a preset fourth compensation value to adjust the GPF parking regeneration working condition.

[0078] wherein the preset first lower limit temperature is greater than the preset second lower limit temperature, and the preset third compensation value is less than the preset fourth compensation value. For example, the preset first lower limit temperature can be 400℃, the preset second lower limit temperature can be 300℃, the preset third compensation value can be 21kW, and the preset fourth compensation value can be 23kW.

[0079] That is, when the real-time temperature of the GPF is less than the preset first lower limit temperature and greater than the preset second lower limit temperature, and the duration exceeds the preset time length, and the real-time temperature of the GPF shows a continuous decreasing trend, the power point of the range extender can be increased to the preset third compensation value. And when the real-time temperature of the GPF is less than the preset second lower limit temperature, the power point of the range extender can be increased to the preset fourth compensation value.

[0080] In this way, when the real-time temperature of the GPF is low, the power point of the range extender can be increased to adjust the GPF parking regeneration working condition to a higher load regeneration working condition, so as to increase the temperature during GPF regeneration, control the GPF parking regeneration temperature within a reasonable range, and avoid the situation that the temperature is too low to stop or fail the regeneration.

[0081] It should be noted that the method provided in the present embodiment is not limited to the above-mentioned control method of the power point of the range extender. In addition to the preset first upper limit temperature, the preset second upper limit temperature, the preset first lower limit temperature, and the preset second lower limit temperature, more upper limit or lower limit temperatures can be set to improve the adjustment accuracy of the power point of the range extender. For example, as shown in the following table, an optional power point of GPF parking regeneration is shown.

[0082] Table 1 Optional power point of GPF parking regeneration

[0083]

[0084] For example, referring to Table 1, the power point of the range extender when entering the GPF parking regeneration working condition can be 20 kW. When the real-time temperature of the GPF is greater than 620°C and less than 720°C, and the duration reaches 60 s, and the temperature continues to rise, the compensation value 1 is selected, and the power point of the range extender is adjusted to the compensation value 1. When the real-time temperature of the GPF is greater than 700°C and less than 720°C, and the duration reaches 60 s, the compensation value 2 is selected. When the real-time temperature of the GPF is greater than 720°C, the compensation value 3 is selected.

[0085] If the real-time temperature of the GPF is less than 400°C and greater than 300°C, and the duration is 60 s, and the temperature continues to decrease, the compensation value 1 is selected. If the real-time temperature of the GPF is less than 320°C and greater than 300°C, and the duration is 60 s, the compensation value 2 is selected. If the real-time temperature of the GPF is less than 300°C, the compensation value 3 is selected.

[0086] It should be noted that after adjusting the GPF parking regeneration working condition, the VCU can continue to detect the real-time temperature of the GPF to realize real-time adjustment of the GPF parking regeneration working condition according to the temperature. The above adjustment of the GPF parking regeneration working condition can be realized by sending an instruction from the VCU to the GCU (Generator Control Unit, engine controller) to instruct the GCU to adjust.

[0087] In this embodiment, considering that the temperature of the range extender is high after the GPF regeneration is completed, and the temperature inside the GPF is also high, if the engine is stopped immediately at this time, the temperature of each component is still high, and the range extender and the GPF have a certain risk of damage. Therefore, in order to avoid the damage risk of directly stopping the engine to the components, the embodiment can also perform a cooling process after the GPF regeneration is completed.

[0088] Optionally, after controlling the range extender of the target vehicle to enter the GPF parking regeneration working condition, the method further comprises: when it is detected that the GPF parking regeneration working condition is completed, controlling the range extender to operate with each preset cooling power and a running time corresponding to each preset cooling power in sequence, and shutting down the range extender after each preset cooling power is operated.

[0089] The size relationship between each preset cooling power can be a gradient relationship, that is, each preset cooling power gradually decreases. For example, the preset cooling power includes 10 kW, 5 kW, and 3 kW.

[0090] Specifically, when the GPF parking regeneration working condition is completed, the range extender can be controlled to operate at each preset cooling power, and the running time of each preset cooling power can be 60 s. When the engine controller detects that the current water temperature of the range extender is less than a certain value (such as 300°C), the cooling process can be stopped, and the engine can be stopped.

[0091] As shown in the embodiment, the GPF cooling process is shown in Fig. 2. The GPF cooling process includes three preset cooling powers, and the preset cooling power 1> preset cooling power 2> preset cooling power 3. After running all the preset cooling powers, it can be determined whether the current water temperature of the range extender is less than 300℃. If yes, the range extender is stopped. Through the above embodiment, the risk of damage to the GPF carrier caused by direct shutdown of the GPF after the completion of the parked regeneration is avoided. Figure 2 Figure 2 In the embodiment, the power generation can also be detected during the GPF parked regeneration process to avoid overcharging of the power.

[0092] In a specific embodiment, before controlling the range extender of the target vehicle to enter the GPF parked regeneration working condition, the method further includes: determining the predicted power generation of the GPF parked regeneration working condition based on the power point of the range extender in the GPF parked regeneration working condition, and if the sum of the predicted power generation and the initial power of the target vehicle exceeds the set power, starting the stationary regeneration protection mode.

[0093] Correspondingly, after controlling the range extender of the target vehicle to enter the GPF parked regeneration working condition, the method further includes: obtaining the current total power generation of the GPF parked regeneration working condition based on the stationary regeneration protection mode, and when the sum of the current total power generation and the initial power reaches a preset value, controlling the range extender to exit the GPF parked regeneration working condition and enter the idle power generation mode, or adjusting the range extender to the regeneration power supply state.

[0094] Specifically, before entering the GPF parked regeneration working condition, the predicted power generation can be estimated according to the power point of the range extender. If the sum of the predicted power generation and the initial power exceeds the set power, it indicates that the target vehicle has the risk of overcharging. At this time, the stationary regeneration protection mode can be performed. The set power can be the full power of the target vehicle, such as 100%, or the difference between the full power and the safe reserved power, such as 97%.

[0095] Specifically, the stationary regeneration protection mode is used to detect the power generation in real time after the vehicle enters the GPF parked regeneration working condition. In the embodiment, if the stationary regeneration protection mode is started, the current total power generation of the GPF parked regeneration working condition is obtained in real time after the range extender enters the GPF parked regeneration working condition.

[0096] Specifically, the stationary regeneration protection mode is used to detect the power generation in real time after the vehicle enters the GPF parked regeneration working condition. In the embodiment, if the stationary regeneration protection mode is started, the current total power generation of the GPF parked regeneration working condition is obtained in real time after the range extender enters the GPF parked regeneration working condition.

[0097] ​The current total power generation can be the cumulative sum of the power generation under all operating conditions that have been executed. For example, the current total power generation = power generation under the hot engine operating condition + power generation under the initial power point + power generation under the adjusted power point 1 + … + power generation under the adjusted power point N. After the current total power generation is calculated, it can also be converted into the form of the battery pack SOC (State Of Charge, state of charge) as the final current total power generation, for example, current total power generation / battery pack degree number x 100%.

[0098] Further, when the sum of the current total power generation and the initial power reaches a preset value, the range extender can be controlled to exit the GPF parked regeneration operating condition, and then enter the idle power generation mode to achieve cooling, or the range extender is adjusted to a regeneration power supply state, that is, it is still in the GPF parked regeneration operating condition, but the generator is disconnected and does not charge the battery pack.

[0099] Through the above embodiments, the power prediction before GPF regeneration is realized, so that the power generation during the GPF parked regeneration process is detected in real time when the battery has an overcharging risk, and the regeneration or regeneration power supply is exited in time when the battery is fully charged, thereby preventing overcharging of the battery and avoiding damage to the battery pack caused by overcharging.

[0100] In this embodiment, considering that the GPF parked regeneration can be divided into two cases, i.e., the case where there is a person in the vehicle and the case where there is no person in the vehicle, the safety requirement of the vehicle in the case where there is no person in the vehicle can be higher than that in the case where there is a person in the vehicle. Therefore, in order to further ensure the safety of GPF regeneration in the case where there is no person in the vehicle, further cooling processing can be performed after the preset cooling power processing.

[0101] Optionally, before controlling the range extender of the target vehicle to enter the GPF parked regeneration operating condition, the method further includes: displaying a regeneration mode selection interface based on the multimedia system of the target vehicle; and obtaining a target mode selected by a user on the regeneration mode selection interface, wherein the target mode is a person-removed parked regeneration mode or a person-present parked regeneration mode.

[0102] Correspondingly, if the target mode is the person-removed parked regeneration mode, after controlling the range extender to operate at each preset cooling power and for a corresponding operating time length, the method further includes: controlling the target vehicle to enter a generator reverse drag mode to stabilize the engine at a set speed for a set time by reverse dragging the engine with the generator, so that the intake air cools the engine.

[0103] That is, before entering the GPF parking regeneration working condition, a regeneration mode selection interface can be displayed for the user to select the off-parking regeneration mode or the on-parking regeneration mode. Further, after the GPF parking regeneration working condition is completed and the range extender is controlled to operate at each preset cooling power in turn, the target vehicle is controlled to enter the generator reverse drag mode. The generator reverse drag mode can be that the generator reversely drags the engine to a set speed (such as 1500 rpm), and the engine is stably operated for a set time (such as 120 s) to rapidly cool the engine by using the temperature of the intake air.

[0104] In the off-parking regeneration mode, the engine can be further cooled to ensure the safety of the vehicle in the off-parking regeneration mode. In combination with the multimedia system, the vehicle owner can freely select the off-parking regeneration mode or the on-parking regeneration mode.

[0105] The GPF parking regeneration method of the range extended vehicle provided in this embodiment can reduce the misoperation caused by human operation during regeneration, ensure the safety of the surrounding environment when the vehicle is regenerated in place, and ensure the safety of the regeneration in place, thereby reducing the risk of regeneration. Further, the GPF parking regeneration working condition is adjusted in real time to control the GPF to reach a suitable regeneration temperature during regeneration in place, improve the GPF regeneration efficiency, and reduce energy waste.

[0106] The GPF parking regeneration method of the range extended vehicle provided in this embodiment determines the environmental safety information of the target vehicle when the target vehicle is in the waiting-to-stop driving state, and then determines whether the safe environment regeneration condition is met according to the environmental safety information when the target vehicle is in the stopped state and the GPF parking regeneration demand is detected. If the safe environment regeneration condition is met, the range extender of the target vehicle is controlled to enter the GPF parking regeneration working condition, and the GPF parking regeneration working condition is adjusted according to the real-time temperature of the GPF when the range extender is working. The working condition is adjusted based on the temperature of the GPF, the regeneration interruption or failure caused by excessively high or low temperature in the prior art is solved, and the method does not need human operation and human supervision. The method determines whether the safe environment regeneration condition is met by obtaining the environmental safety information, ensures that the GPF regeneration is performed in a safe environment, and improves the safety during the regeneration process.

[0107] Figure 3 is a structural schematic diagram of an electronic device provided in this embodiment. As shown in Figure 3 The electronic device 500 includes one or more processors 501 and a memory 502.

[0108] The processor 501 can be a central processing unit (CPU) or other forms of processing units having data processing and / or instruction execution capabilities, and can control other components in the electronic device 500 to perform desired functions.

[0109] The memory 502 can include one or more computer program products, which can include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory, for example, can include random access memory (RAM), cache memory, and / or the like. The non-volatile memory, for example, can include read-only memory (ROM), hard disk, flash memory, and / or the like. One or more computer program instructions can be stored on the computer-readable storage media, and the processor 501 can run the program instructions to implement the GPF on-site regeneration method of the range-extending vehicle of any embodiment of the present application and / or other desired functions. Various contents such as initial external parameters, threshold values, and the like can also be stored in the computer-readable storage media.

[0110] In one example, the electronic device 500 can further include an input device 503 and an output device 504, which are interconnected through a bus system and / or other forms of connection mechanism (not shown). The input device 503 can include, for example, a keyboard, a mouse, and / or the like. The output device 504 can output various information to the outside, including pre-warning prompt information, braking force, and the like. The output device 504 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and / or the like.

[0111] Of course, in order to simplify, Figure 3 Only some of the components in the electronic device 500 related to the present application are shown in the figure, and components such as buses, input / output interfaces, and the like are omitted. In addition, the electronic device 500 can also include any other appropriate components according to specific application cases.

[0112] In addition to the above method and device, the embodiments of the present application can also be a computer program product, which includes computer program instructions that, when executed by a processor, cause the processor to perform the steps of the GPF on-site regeneration method of the range-extending vehicle provided by any embodiment of the present application.

[0113] The computer program product can be written in any combination of one or more programming languages, including an object-oriented programming language such as Java, C++, and / or the like, and conventional procedural programming languages, such as the "C" programming language, or the like. The program code can execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server.

[0114] In addition, an embodiment of the present application can also be a computer readable storage medium, having stored thereon computer program instructions which, when executed by a processor, enable the processor to carry out the steps of the method of GPF regeneration of a range-extended vehicle according to any embodiment of the present application.

[0115] The computer readable storage medium can take the form of one or more combinations of any type of computer readable medium. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0116] It should be noted that the terms used in the present application are only for describing specific embodiments and are not intended to limit the scope of the present application. As shown in the specification and claims of the present application, unless the context clearly indicates otherwise, the terms "one", "a", "an", and / or "the" do not specifically refer to the singular, but can also include the plural. The terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method or device including the element.

[0117] It should also be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" and the like should be broadly understood, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or a communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0118] The principles and implementations of the present application are described herein with specific examples. The above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred embodiments of the present application. It should be pointed out that, due to the limitation of language expression, there are infinite specific structures objectively. For ordinary skilled persons in the art, without departing from the principles of the present application, some improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner. These improvements, refinements, changes or combinations, or the application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A GPF in-situ regeneration method for an extended-range vehicle, characterized in that: include: When a target vehicle is detected to be in a waiting-to-park state, determining environmental safety information of the target vehicle, wherein the environmental safety information includes a risk level of external flammable materials in the target vehicle's path, whether the target vehicle is located in a risk area, and whether there are other risky transport vehicles; After the target vehicle is in a parked state, if it is detected that the target vehicle has a GPF parking regeneration requirement, determining whether the target vehicle meets a safe environment regeneration condition based on the environmental safety information; When the safe environment regeneration condition is met, controlling the range extender of the target vehicle to enter a GPF parking regeneration operating state, and adjusting the GPF parking regeneration operating state according to the real-time GPF temperature during the operation of the range extender; adjusting the GPF parking regeneration operating state according to the real-time GPF temperature during the operation of the range extender, including: obtaining a real-time GPF temperature of the target vehicle, and if the real-time GPF temperature is greater than a preset first upper limit temperature and less than a preset second upper limit temperature, and the duration exceeds a preset time length, and the real-time GPF temperature shows a continuous increasing trend, lowering the power point of the range extender to a preset first compensation value to adjust the GPF parking regeneration operating condition; and If the GPF real-time temperature is greater than the preset second upper limit temperature, the power point of the range extender is reduced to a preset second compensation value to adjust the GPF parking regeneration operating condition; Wherein, the preset first compensation value is greater than the preset second compensation value.

2. The method according to claim 1, characterized in that Determining whether the target vehicle meets a safe environment regeneration condition based on the environmental safety information includes: If the risk level of the external flammable material is lower than a preset level, and the target vehicle is not located in a risk area, and there are no other risky transport vehicles, it is determined that the target vehicle meets the safe environment regeneration conditions.

3. The method according to claim 1, characterized in that Before controlling the range extender of the target vehicle to enter the GPF parking regeneration state, the method further includes: Obtaining an initial charge of the target vehicle, and determining whether the initial charge is lower than a preset charge threshold; If so, obtaining the current ambient temperature of the target vehicle and the current water temperature of the range extender; If the current water temperature is equal to the current ambient temperature, the target vehicle is determined to be in a cold engine state; if the current water temperature is greater than the current ambient temperature and less than a preset hot engine temperature, the target vehicle is determined to be in an incompletely hot engine state; and if the current water temperature is greater than the preset hot engine temperature, the target vehicle is determined to be in a hot engine state. When the target vehicle is in a cold state or an incompletely heated state, the catalyst of the target vehicle is controlled to enter a heating state, and the range extender is controlled to enter a heating state until the current water temperature reaches a set temperature.

4. The method according to claim 1, wherein During operation of the range extender, adjusting the GPF parking regeneration operating condition according to the real-time GPF temperature further includes: If the GPF real-time temperature is less than a preset first lower temperature limit and greater than a preset second lower temperature limit, and the duration exceeds a preset time length, and the GPF real-time temperature shows a continuous downward trend, the power point of the range extender is increased to a preset third compensation value to adjust the GPF parking regeneration operating condition; and If the GPF real-time temperature is less than a preset second lower temperature limit, the power point of the range extender is increased to a preset fourth compensation value to adjust the GPF parking regeneration operating condition; The preset third compensation value is smaller than the preset fourth compensation value.

5. The method according to claim 1, wherein After controlling the range extender of the target vehicle to enter the GPF parking regeneration state, the method further includes: When it is detected that the GPF parking regeneration condition is completed, the range extender is controlled to operate in sequence at each preset cooling power and the operating time corresponding to each preset cooling power, and the range extender is turned off after the operation of each preset cooling power is completed.

6. The method according to claim 1, characterized in that Before controlling the range extender of the target vehicle to enter the GPF parking regeneration state, the method further includes: Determining a predicted power generation amount for the GPF parking regeneration condition based on a power point of the range extender in the GPF parking regeneration condition, and initiating a stationary regeneration protection mode if the sum of the predicted power generation amount and the initial power of the target vehicle exceeds a set power; Accordingly, after controlling the range extender of the target vehicle to enter the GPF parking regeneration state, the method further includes: Based on the stationary regeneration protection mode, the current total power generation of the GPF in the parking regeneration condition is obtained. When the sum of the current total power generation and the initial power reaches a preset value, the range extender is controlled to exit the GPF parking regeneration condition and enter the idle non-power generation mode, or the range extender is adjusted to a regeneration non-power supply state.

7. The method according to claim 5, characterized in that Before controlling the range extender of the target vehicle to enter the GPF parking regeneration state, the method further includes: Displaying a regeneration mode selection interface based on a multimedia system of the target vehicle; Acquiring a target mode selected by a user on the regeneration mode selection interface, wherein the target mode is a parking regeneration mode with no passengers or a parking regeneration mode with a passenger; Correspondingly, if the target mode is the parking regeneration mode, after controlling the range extender to operate at each preset cooling power and the operating time corresponding to each preset cooling power in sequence, the method further includes: The target vehicle is controlled to enter a generator reverse drag mode, so that the generator reverse drags the engine to stably run at a set speed for a set time, so that the intake air cools the engine.

8. An electronic device, characterized in that: The electronic device comprises: processor and memory; The processor is configured to execute the steps of the GPF in-situ regeneration method for an extended-range vehicle as described in any one of claims 1 to 7 by calling the program or instructions stored in the memory.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program or instruction, which enables a computer to execute the steps of the GPF in-situ regeneration method for an extended-range vehicle according to any one of claims 1 to 7.

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