Regeneration treatment system and method for gasoline engine particulate matter catcher and automobile

Abstract

The invention discloses a regeneration treatment system and method for a gasoline engine particulate matter trap and an automobile, and belongs to the technical field of automobiles, the method comprises the steps that after an alarm indicator lamp of the gasoline engine particulate matter trap is turned on, whether the difference value between pressure value data is smaller than a set threshold value or not is judged through an electronic control unit (ECU), and if not, the gasoline engine particulate matter trap is started; if yes, the system conducts regeneration treatment on the gasoline engine particulate matter trap under the preset condition, after regeneration treatment, whether the difference value between pressure value data collected after regeneration treatment is smaller than a set threshold value or not is judged through an electronic control unit (ECU), and if not, the gasoline engine particulate matter trap is started. If yes, the gasoline engine particulate matter trap can continue to be regenerated under the preset condition through the system till the alarm indicator lamp of the gasoline engine particulate matter trap is extinguished. By means of the system and method, the gasoline engine particulate matter trap can be regenerated according to the difference value between the pressure value data of the two ends of the gasoline engine particulate matter trap.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobiles, and in particular, relates to a regeneration processing system and method for a gasoline engine particulate matter collector and an automobile. Background Art

[0002] With the development of society, the number of cars is also increasing. In order to reduce the pollution of automobile exhaust to the environment and make the emission of automobile exhaust comply with national laws and regulations, a gasoline particulate filter (GPF) can be installed on the engine exhaust system of the car. The gasoline particulate filter (GPF) can remove the carbon soot by capturing the carbon soot particles exhausted by the engine on the wall surface, thereby reducing the emission of particulate matter.

[0003] Patent CN112324542A discloses a GPF control method, which includes the following steps: S1, judging whether the carbon load of the GPF is greater than a first value, if so, entering step S2, if not, not lighting the indicator light; S2, judging whether the carbon load of the GPF is greater than a second value, if so, entering step S3, if not, controlling the indicator light to light up in a first color; wherein the second value is greater than the first value and less than 1; S3, judging whether the GPF is in a regeneration state, if so, controlling the indicator light to light up in a second color; if not, controlling the indicator light to light up in a third color; wherein the first color, the second color and the third color are all different.

[0004] The method disclosed in the aforementioned patent reminds the customer to perform the regeneration operation by lighting up the indicator light in different colors. For example, when the indicator light is lit in a first color, it indicates that the gasoline particulate matter filter (GPF) needs to be regenerated. The driver can meet the conditions for regenerating the gasoline particulate matter filter (GPF) by driving on the highway, thereby completing the regeneration of the gasoline particulate matter filter (GPF). However, if the indicator light is lit in the first color but the driver does not have the conditions or needs to drive on the highway, the method cannot complete the regeneration of the gasoline particulate matter filter (GPF) when the indicator light is lit in the first color. In the long run, as the carbon soot on the wall of the gasoline particulate matter filter (GPF) continues to accumulate, the gasoline particulate matter filter (GPF) will become clogged, thereby affecting its conversion efficiency, and then leading to increased exhaust back pressure and increased fuel consumption. Summary of the invention

[0005] The problem to be solved by the present invention is, in view of the deficiencies in the prior art, to provide a gasoline engine particulate matter trap regeneration processing system, method and vehicle, so as to achieve the purpose of regenerating the gasoline engine particulate matter trap according to the size of the difference between the pressure value data at both ends of the gasoline engine particulate matter trap.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] The invention provides a regeneration processing system for a gasoline engine particulate matter trap, comprising an electronic control unit (ECU), an engine exhaust system, an engine microcontroller, a display screen microcontroller, a display screen and a gasoline engine particulate matter trap warning indicator light, wherein the engine exhaust system comprises a gasoline engine particulate matter trap, a fuel injector, a spark plug, an air flow sensor, a temperature sensor, a first pressure sensor and a second pressure sensor, wherein the electronic control unit (ECU) is respectively connected to the engine microcontroller and the display screen microcontroller; the display screen microcontroller is also respectively connected to the display screen and the gasoline engine particulate matter trap warning indicator light; the output ends of the air flow sensor, the temperature sensor, the first pressure sensor and the second pressure sensor are respectively connected to the input end of the electronic control unit (ECU); the fuel injector and the spark plug are respectively connected to the output end of the electronic control unit (ECU); the first pressure sensor is arranged at one end of the gasoline engine particulate matter trap; and the second pressure sensor is arranged at the other end of the gasoline engine particulate matter trap.

[0008] Furthermore, the electronic control unit (ECU) is provided with preset conditions for regenerating the gasoline engine particulate matter trap.

[0009] Furthermore, the first pressure sensor and the second pressure sensor feed back the collected pressure value data to the electronic control unit (ECU), the temperature sensor feeds back the detected temperature data to the electronic control unit (ECU), and the engine's microcontroller feeds back the engine's speed data to the electronic control unit (ECU). The electronic control unit (ECU) receives the pressure value data fed back by the first pressure sensor and the second pressure sensor, the temperature data fed back by the temperature sensor, and the engine's speed data fed back by the engine's microcontroller.

[0010] Furthermore, the preset conditions include that the idle speed of the vehicle engine reaches a target speed and the temperature data fed back by the temperature sensor received by the electronic control unit (ECU) reaches a target temperature.

[0011] Furthermore, the target rotation speed and the target temperature are 4000 rpm and 850 degrees Celsius, respectively.

[0012] Furthermore, after receiving the pressure value data fed back by the first pressure sensor and the second pressure sensor, the electronic control unit (ECU) calculates the difference between the pressure value data fed back by the first pressure sensor and the second pressure sensor, and converts the unit of the difference between the pressure value data into pressure.

[0013] The present invention also provides a method for regenerating a gasoline engine particulate matter collector, the method comprising the following steps:

[0014] Step 1: The gasoline engine particulate matter filter warning indicator lights up;

[0015] Step 2: determining, by an electronic control unit (ECU), whether the difference between the pressure value data is less than a threshold value set in the electronic control unit (ECU);

[0016] Step 3: If the difference between the pressure value data is not less than the threshold value set in the electronic control unit (ECU), the gasoline engine particulate matter trap warning indicator light does not go out, otherwise the gasoline engine particulate matter trap warning indicator light goes out;

[0017] Step 4: triggering an instruction to regenerate the gasoline engine particulate matter trap under the premise that the gasoline engine particulate matter trap warning indicator light is not extinguished;

[0018] Step 5, the system regenerates the gasoline engine particulate matter filter under preset conditions;

[0019] Step 6: After the system regenerates the gasoline engine particulate matter trap under preset conditions, the first pressure sensor and the second pressure sensor feed back the pressure value data collected after the regeneration process to the electronic control unit (ECU);

[0020] Step 7, determining by an electronic control unit (ECU) whether the difference between the pressure value data collected after the regeneration process is less than a threshold value set in the electronic control unit (ECU);

[0021] Step 8: If the difference between the pressure value data collected after the regeneration process is not less than the threshold set in the electronic control unit (ECU), return to step 5, otherwise the gasoline engine particulate matter trap warning indicator light goes out.

[0022] Furthermore, under preset conditions, the system performs regeneration processing on the gasoline engine particulate matter filter for 20 minutes.

[0023] Further, the threshold value is 80 kPa.

[0024] The present invention also relates to an automobile, wherein a regeneration system of a gasoline engine particulate matter trap equipped in the automobile is controlled by the above-mentioned gasoline engine particulate matter trap regeneration method.

[0025] The gasoline engine particulate matter trap regeneration treatment system and method of the present invention have the following advantages:

[0026] (1) The electronic control unit (ECU) of the system of the present invention is provided with preset conditions for regenerating the gasoline engine particulate matter filter.

[0027] (2) The present invention reflects the blockage state of the gasoline engine particulate matter trap by the difference between the pressure value data collected by the first pressure sensor arranged at one end of the gasoline engine particulate matter trap and the second pressure sensor arranged at the other end of the gasoline engine particulate matter trap.

[0028] (3) The system and method of the present invention can realize the regeneration of the gasoline engine particulate matter trap based on the difference between the pressure value data collected by the first pressure sensor arranged at one end of the gasoline engine particulate matter trap and the second pressure sensor arranged at the other end of the gasoline engine particulate matter trap. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] This specification includes the following drawings, which show the following contents:

[0030] Figure 1 It is a logical structure block diagram of a regeneration processing system of a gasoline engine particulate matter trap of the present invention;

[0031] Figure 2 It is a flowchart of a regeneration method for a gasoline engine particulate matter collector of the present invention;

[0032] Figure 3 The invention discloses a schematic diagram of an engine exhaust system of a gasoline engine particulate matter collector regeneration processing system.

[0033] Explanation of the reference numerals: 1. Electronic control unit (ECU); 2. Engine exhaust system; 3. Engine microcontroller; 4. Display screen microcontroller; 5. Display screen; 6. Gasoline engine particulate matter collector warning indicator light; 21. Gasoline engine particulate matter collector; 22. Injector; 23. Spark plug; 24. Air flow sensor; 25. Temperature sensor; 26. First pressure sensor; 27 Second pressure sensor. DETAILED DESCRIPTION

[0034] The specific implementation methods of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and facilitating their implementation.

[0035] Figure 1The present invention is a logic structure block diagram of a regeneration processing system of a gasoline engine particulate matter trap 21, comprising an electronic control unit (ECU) 1, an engine exhaust system 2, an engine microcontroller 3, a display screen microcontroller 4, a display screen 5 and a gasoline engine particulate matter trap warning indicator 6, wherein the engine exhaust system 2 comprises a gasoline engine particulate matter trap 21, an injector 22, a spark plug 23, an air flow sensor 24, a temperature sensor 25, a first pressure sensor 26 and a second pressure sensor 27, wherein the electronic control unit (ECU) 1 is respectively connected to the engine microcontroller 3, and the engine microcontroller 4 is connected to the engine microcontroller 4, and the display screen 5 and the gasoline engine particulate matter trap warning indicator 6. The microcontroller 4 of the display screen is connected to the display screen 5 and the gasoline engine particulate matter trap warning indicator 6 respectively; the output ends of the air flow sensor 24, the temperature sensor 25, the first pressure sensor 26 and the second pressure sensor 27 are respectively connected to the input end of the electronic control unit (ECU) 1; the injector 22 and the spark plug 23 are respectively connected to the output end of the electronic control unit (ECU) 1; the first pressure sensor 26 is arranged at one end of the gasoline engine particulate matter trap 21; the second pressure sensor 27 is arranged at the other end of the gasoline engine particulate matter trap 21. In addition, the above-mentioned electronic control unit (ECU) 1 is provided with a preset condition for regenerating the gasoline engine particulate matter trap 21, and the preset condition includes that the idle speed of the automobile engine reaches the target speed and the temperature data fed back by the temperature sensor 25 received by the electronic control unit (ECU) 1 reaches the target temperature, wherein the target speed and the target temperature are 4000 revolutions per minute and 850 degrees Celsius respectively. However, the above-mentioned target speed and target temperature are not limited to 4000 rpm and 850 degrees Celsius respectively, but can be specifically set according to the specific actual conditions of a specific vehicle model.

[0036] The aforementioned first pressure sensor 26 and second pressure sensor 27 feed back the collected pressure value data to the electronic control unit (ECU) 1, the temperature sensor 25 feeds back the detected temperature data to the electronic control unit (ECU) 1, and the engine microcontroller 3 feeds back the engine speed data to the electronic control unit (ECU) 1. The electronic control unit (ECU) 1 receives the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, the temperature data fed back by the temperature sensor 25, and the engine speed data fed back by the engine microcontroller 3. After receiving the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, the electronic control unit (ECU) 1 calculates the difference between the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, and converts the unit of the difference between the pressure value data into pressure. In addition, the display interface of the aforementioned display screen 5 is provided with a first-level menu "vehicle control", the first-level menu "vehicle health" is provided with a second-level menu "vehicle health", the second-level menu "vehicle health" is provided with a third-level menu "gasoline particulate trap 21 regeneration reminder", and the third-level menu "gasoline particulate trap 21 regeneration reminder" is provided with prompt information and "gasoline particulate trap 21 regeneration processing button", wherein the prompt information is "please shift the gear to P gear before clicking the gasoline particulate trap 21 regeneration processing button". The first-level menu, the second-level menu, the third-level menu and the "gasoline particulate trap 21 regeneration processing button" provided in the display interface of the aforementioned display screen 5 are all for the purpose of preparing for triggering the instruction to regenerate the gasoline particulate trap 21. In this specific embodiment, after clicking the "gasoline particulate trap 21 regeneration processing button" on the premise of shifting the gear to P gear, the instruction to regenerate the gasoline particulate trap 21 will be triggered.

[0037] Combine the following Figure 1The working principle and process of the regeneration treatment system of the gasoline engine particulate matter trap 21 of the present invention are introduced. When the gasoline engine particulate matter trap warning indicator light 6 lights up, the first pressure sensor 26 and the second pressure sensor 27 respectively feed back the pressure value data of the two ends of the gasoline engine particulate matter trap 21 detected to the electronic control unit (ECU) 1. After receiving the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, the electronic control unit (ECU) 1 calculates the difference between the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, and converts the unit of the difference between the pressure value data into pressure, and then compares the difference between the pressure value data after unit conversion with the threshold value set in the electronic control unit (ECU) 1 through the electronic control unit (ECU) 1. If the result of the comparison is that the difference between the pressure value data after unit conversion is less than the threshold value set in the electronic control unit (ECU) 1, the electronic control unit (ECU) 1 controls the microcontroller 4 of the display screen to further control the gasoline engine particulate matter trap warning indicator 6 to go out; if the result of the comparison is that the difference between the pressure value data after unit conversion is not less than the threshold value set in the electronic control unit (ECU) 1, the gasoline engine particulate matter trap warning indicator 6 does not go out. When the gasoline engine particulate matter trap warning indicator 6 does not go out within 3 minutes after lighting up, it prompts the driver to regenerate the gasoline engine particulate matter trap 21. At this time, the driver can click the "gasoline engine particulate matter trap 21 regeneration processing button" on the premise of shifting the gear to P gear, which will trigger the instruction to regenerate the gasoline engine particulate matter trap 21. After the instruction to regenerate the gasoline engine particulate matter trap 21 is triggered, the information that the instruction is triggered is fed back to the electronic control unit (ECU) 1 through the microcontroller 4 of the display screen. In this specific embodiment, the threshold value set in the aforementioned electronic control unit (ECU) 1 is 80 kPa, but the threshold value is not limited to 80 kPa, but can be specifically set according to the specific actual situation of the specific vehicle model; in this specific embodiment, when the aforementioned gasoline engine particulate matter trap warning indicator light 6 does not go out within 3 minutes after lighting up, it prompts the driver to regenerate the gasoline vehicle particulate matter trap 21, but the time that the gasoline engine particulate matter trap warning indicator light 6 remains after lighting up is not limited to 3 minutes, but can be specifically set according to specific circumstances and specific needs.When the electronic control unit (ECU) 1 receives the information that the instruction to regenerate the gasoline engine particulate matter trap 21 is triggered, the system will regenerate the gasoline engine particulate matter trap 21 under the preset conditions, that is, the electronic control unit (ECU) 1 controls the engine microcontroller 3 and then controls the engine, so that the idle speed of the automobile engine reaches 4000 revolutions per minute. At the same time, the electronic control unit (ECU) 1 controls the injector 22 and the spark plug 23 in the engine exhaust system 2, so that the temperature data detected by the temperature sensor 25 reaches 850 degrees Celsius. When the engine speed data fed back to the electronic control unit (ECU) 1 by the engine microcontroller 3 reaches 4000 revolutions per minute and the temperature data fed back to the electronic control unit (ECU) 1 by the temperature sensor 25 reaches 850 degrees Celsius, the electronic control unit (ECU) 1 sends to the microcontroller 4 of the display screen the information and timing instruction that the system officially starts regenerating the gasoline engine particulate matter trap 21 under the preset conditions. At this time, the microcontroller 4 of the display screen controls the display screen 5 to display the regeneration time on the display interface of the display screen 5. In this specific embodiment, the system performs a regeneration process on the gasoline engine particulate matter trap 21 for 20 minutes under preset conditions, but the regeneration process is not limited to 20 minutes, but can be specifically set according to the specific actual conditions of the specific vehicle model. When the system completes the regeneration process on the gasoline engine particulate matter trap 21 under preset conditions, the first pressure sensor 26 and the second pressure sensor 27 feed back the pressure value data at both ends of the gasoline engine particulate matter trap 21 collected after the regeneration process to the electronic control unit (ECU) 1. After the electronic control unit (ECU) 1 receives the pressure value data collected after the regeneration process fed back by the first pressure sensor 26 and the second pressure sensor 27, the electronic control unit (ECU) 1 calculates the difference between the pressure value data collected after the regeneration process, and converts the unit of the difference into pressure, and then compares the difference after the unit conversion with the threshold value set in the electronic control unit (ECU) 1 through the electronic control unit (ECU) 1. If the comparison result is that the difference between the pressure value data collected after the regeneration process after unit conversion is not less than the threshold value set in the electronic control unit (ECU) 1, the system continues to regenerate the gasoline engine particulate matter collector 21 under preset conditions until the comparison result is that the difference after unit conversion is less than the threshold value set in the electronic control unit (ECU) 1; if the comparison result is that the difference between the pressure value data collected after the regeneration process after unit conversion is less than the threshold value set in the electronic control unit (ECU) 1, the electronic control unit (ECU) 1 controls the microcontroller 4 of the display screen and then controls the gasoline engine particulate matter collector warning indicator light 6 to turn it off.

[0038] Figure 21 is a flowchart of a method for regenerating a gasoline engine particulate matter trap 21 according to the present invention, the method comprising the following steps:

[0039] Step 1: The gasoline engine particulate matter trap warning indicator 6 lights up, which corresponds to Figure 2 In step S1 of the gasoline engine particulate matter trap warning indicator 6 lights up. Specifically, in step S1, when the gasoline engine particulate matter trap 21 is blocked, the gasoline engine particulate matter trap warning indicator 6 lights up to remind the driver that the gasoline engine particulate matter trap 21 needs to be regenerated.

[0040] Step 2: The electronic control unit (ECU) 1 determines whether the difference between the pressure value data is less than the threshold value set in the electronic control unit (ECU) 1, that is, the corresponding Figure 2 In step S2, it is determined whether the difference between the pressure value data is less than a threshold value. Specifically, in step S2, when the gasoline engine particulate matter trap warning indicator 6 is on, the first pressure sensor 26 and the second pressure sensor 27 respectively feed back the pressure value data detected at both ends of the gasoline engine particulate matter trap 21 to the electronic control unit (ECU) 1. After receiving the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, the electronic control unit (ECU) 1 calculates the difference between the pressure value data fed back by the first pressure sensor 26 and the second pressure sensor 27, and converts the unit of the difference between the pressure value data into pressure, and then compares the difference between the pressure value data after the unit conversion with the threshold value set in the electronic control unit (ECU) 1 through the electronic control unit (ECU) 1. If the result of the comparison is that the difference between the pressure value data after the unit conversion is not less than the threshold value set in the electronic control unit (ECU) 1, then the process proceeds to step S21. If the result of the comparison is that the difference between the pressure value data after the unit conversion is less than the threshold value set in the electronic control unit (ECU) 1, then the process proceeds to step S22. In this specific embodiment, the threshold value set in the aforementioned electronic control unit (ECU) 1 is 80 kPa, but the threshold value is not limited to 80 kPa, but can be specifically set according to the specific actual situation of a specific vehicle model.

[0041] Step 3: If the difference between the pressure value data is not less than the threshold value set in the electronic control unit (ECU) 1, the gasoline engine particulate matter trap 21 warning indicator light does not go out, otherwise the gasoline engine particulate matter trap 21 warning indicator light goes out, that is, respectively corresponding to Figure 2In step S21, the gasoline engine particulate matter trap warning indicator 6 does not go out, and in step S22, the gasoline engine particulate matter trap warning indicator 6 goes out. Specifically, in step S21, when the result of the comparison in step S2 is that the difference between the pressure value data after unit conversion is not less than the threshold value set in the electronic control unit (ECU) 1, the gasoline engine particulate matter trap warning indicator 6 does not go out and enters step S211. In step S22, when the result of the comparison in step S2 is that the difference between the pressure value data after unit conversion is less than the threshold value set in the electronic control unit (ECU) 1, the electronic control unit (ECU) 1 controls the microcontroller 4 of the display screen and then controls the gasoline engine particulate matter trap warning indicator 6 to go out.

[0042] Step 4: triggering the instruction to regenerate the gasoline engine particulate matter trap 21 under the premise that the gasoline engine particulate matter trap warning indicator 6 is not extinguished, that is, corresponding to Figure 2 Step S211 in triggers the instruction to regenerate the gasoline engine particulate matter trap 21. Specifically, in step S211, when the gasoline engine particulate matter trap warning indicator 6 does not go out within 3 minutes after lighting up, it prompts the driver to regenerate the gasoline engine particulate matter trap 21. At this time, after the gear is shifted to the P gear, the instruction to regenerate the gasoline engine particulate matter trap 21 is triggered by clicking the "gasoline engine particulate matter trap 21 regeneration processing button". After the instruction to regenerate the gasoline engine particulate matter trap 21 is triggered, the information that the instruction is triggered is fed back to the electronic control unit (ECU) 1 through the microcontroller 4 of the display screen. In this specific embodiment, when the gasoline engine particulate matter trap warning indicator 6 does not go out within 3 minutes after lighting up, it prompts the driver to regenerate the gasoline vehicle particulate matter trap 21, but the time for the gasoline engine particulate matter trap warning indicator 6 to remain after lighting up is not limited to 3 minutes, but can be specifically set according to specific circumstances and specific needs.

[0043] Step 5: The system regenerates the gasoline engine particulate matter collector 21 under preset conditions, corresponding to Figure 2In step S212, the system regenerates the gasoline engine particulate matter trap 21 under preset conditions. Specifically, in step S212, when the electronic control unit (ECU) 1 receives the information that the instruction to regenerate the gasoline engine particulate matter trap 21 is triggered, the system regenerates the gasoline engine particulate matter trap 21 under preset conditions, that is, the electronic control unit (ECU) 1 controls the microcontroller 3 of the engine and then controls the engine, so that the idle speed of the automobile engine reaches 4000 revolutions per minute. At the same time, the electronic control unit (ECU) 1 controls the injector 22 and the spark plug 23 in the engine exhaust system 2, so that the temperature sensor When the temperature data detected by the temperature sensor 25 reaches 850 degrees Celsius, when the engine speed data fed back by the microcontroller 3 of the engine to the electronic control unit (ECU) 1 reaches 4000 revolutions per minute and the temperature data fed back by the temperature sensor 25 to the electronic control unit (ECU) 1 reaches 850 degrees Celsius, the electronic control unit (ECU) 1 sends the information and timing instructions of the system formally starting the regeneration process of the gasoline engine particulate matter trap 21 under the preset conditions to the microcontroller 4 of the display screen, and at this time, the microcontroller 4 of the display screen controls the display screen 5 to display the time of the regeneration process on the display interface of the display screen 5. In this specific embodiment, the time for the system to regenerate the gasoline engine particulate matter trap 21 under the preset conditions is 20 minutes, but the time of the regeneration process is not limited to 20 minutes, but can be specifically set according to the specific actual situation of the specific vehicle model.

[0044] Step 6: After the system regenerates the gasoline engine particulate matter trap 21 under preset conditions, the first pressure sensor 26 and the second pressure sensor 27 feed back the pressure value data collected after the regeneration process to the electronic control unit (ECU) 1, corresponding to Figure 2 Step S213 in the embodiment receives the pressure value data collected after the regeneration process. Specifically, in step S213, after the system in step S212 completes the regeneration process of the gasoline engine particulate matter trap 21 under the preset conditions, the first pressure sensor 26 and the second pressure sensor 27 feed back the pressure value data collected at both ends of the gasoline engine particulate matter trap 21 after the regeneration process to the electronic control unit (ECU) 1.

[0045] Step 7: The electronic control unit (ECU) 1 determines whether the difference between the pressure value data collected after the regeneration process is less than the threshold value set in the electronic control unit (ECU) 1, that is, the corresponding Figure 2In step S214, it is determined whether the difference between the pressure value data collected after the regeneration process is less than a threshold value. Specifically, in step S214, after the electronic control unit (ECU) 1 receives the pressure value data collected after the regeneration process fed back by the first pressure sensor 26 and the second pressure sensor 27, the electronic control unit (ECU) 1 calculates the difference between the pressure value data collected after the regeneration process, and converts the unit of the difference into pressure, and then compares the difference after the unit conversion with the threshold value set in the electronic control unit (ECU) 1 through the electronic control unit (ECU) 1.

[0046] Step 8: If the difference between the pressure value data collected after the regeneration process is not less than the threshold value set in the electronic control unit (ECU) 1, then return to step 5; otherwise, the gasoline engine particulate matter trap warning indicator 6 goes out, which corresponds to Figure 2 In step S212, the system performs regeneration processing on the gasoline engine particulate matter trap 21 under preset conditions, and in step S215, the gasoline engine particulate matter trap warning indicator 6 is turned off. Specifically, in step S215, if the comparison result in step S214 is that the difference between the pressure value data collected after the regeneration processing after unit conversion is not less than the threshold value set in the electronic control unit (ECU) 1, then the process proceeds to step S212, and if the comparison result in step S214 is that the difference between the pressure value data collected after the regeneration processing after unit conversion is less than the threshold value set in the electronic control unit (ECU) 1, then the process proceeds to step S215, and in step S215, the microcontroller 4 of the display screen is controlled by the electronic control unit (ECU) 1 to control the gasoline engine particulate matter trap warning indicator 6 to turn it off.

[0047] Figure 3 This is a schematic diagram of an engine exhaust system 2 of a regeneration treatment system for a gasoline engine particulate matter trap 21 of the present invention. Through this figure, the connection relationship between the electronic control unit (ECU) 1 and each component in the engine exhaust system 2 can be more intuitively seen.

[0048] In addition, the present invention also relates to an automobile, wherein a regeneration system of a gasoline engine particulate matter trap 21 equipped with the automobile is controlled by the aforementioned regeneration method of the gasoline engine particulate matter trap 21 .

[0049] The present invention is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention; or the above concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A regeneration system for a gasoline engine particulate matter collector, characterized in that: It includes an electronic control unit (ECU), an engine exhaust system, an engine microcontroller, a display screen microcontroller, a display screen and a gasoline engine particulate matter trap warning indicator light, wherein the engine exhaust system includes a gasoline engine particulate matter trap, an injector, a spark plug, an air flow sensor, a temperature sensor, a first pressure sensor and a second pressure sensor, the electronic control unit (ECU) is respectively connected to the engine microcontroller and the display screen microcontroller; the display screen microcontroller is also respectively connected to the display screen and the gasoline engine particulate matter trap warning indicator light; the output ends of the air flow sensor, the temperature sensor, the first pressure sensor and the second pressure sensor are respectively connected to the input end of the electronic control unit (ECU); the injector and the spark plug are respectively connected to the output end of the electronic control unit (ECU); the first pressure sensor is arranged at one end of the gasoline engine particulate matter trap; the second pressure sensor is arranged at the other end of the gasoline engine particulate matter trap.

2. A gasoline engine particulate matter trap regeneration system as claimed in claim 1, characterized in that: The electronic control unit (ECU) is provided with preset conditions for regenerating the gasoline engine particulate matter trap.

3. A gasoline engine particulate matter trap regeneration system as claimed in claim 1, characterized in that: The first pressure sensor and the second pressure sensor feed back the collected pressure value data to the electronic control unit (ECU), the temperature sensor feeds back the detected temperature data to the electronic control unit (ECU), the engine microcontroller feeds back the engine speed data to the electronic control unit (ECU), and the electronic control unit (ECU) receives the pressure value data fed back by the first pressure sensor and the second pressure sensor, the temperature data fed back by the temperature sensor, and the engine speed data fed back by the engine microcontroller.

4. A gasoline engine particulate matter trap regeneration system as claimed in claim 2, characterized in that: The preset conditions include that the idle speed of the vehicle engine reaches a target speed and the temperature data fed back by the temperature sensor received by the electronic control unit (ECU) reaches a target temperature.

5. A gasoline engine particulate matter trap regeneration system as claimed in claim 4, characterized in that: The target rotation speed and target temperature are 4000 rpm and 850 degrees Celsius, respectively.

6. A gasoline engine particulate matter trap regeneration system as claimed in claim 4, characterized in that: After receiving the pressure value data fed back by the first pressure sensor and the second pressure sensor, the electronic control unit (ECU) calculates the difference between the pressure value data fed back by the first pressure sensor and the second pressure sensor, and converts the unit of the difference between the pressure value data into pressure.

7. A method for regenerating a gasoline engine particulate matter trap according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: Step 1: The gasoline engine particulate matter filter warning indicator lights up; Step 2: determining, by an electronic control unit (ECU), whether the difference between the pressure value data is less than a threshold value set in the electronic control unit (ECU); Step 3: If the difference between the pressure value data is not less than the threshold value set in the electronic control unit (ECU), the gasoline engine particulate matter trap warning indicator light does not go out, otherwise the gasoline engine particulate matter trap warning indicator light goes out; Step 4: triggering an instruction to regenerate the gasoline engine particulate matter trap under the premise that the gasoline engine particulate matter trap warning indicator light is not extinguished; Step 5, the system regenerates the gasoline engine particulate matter filter under preset conditions; Step 6: After the system regenerates the gasoline engine particulate matter trap under preset conditions, the first pressure sensor and the second pressure sensor feed back the pressure value data collected after the regeneration process to the electronic control unit (ECU); Step 7, determining by an electronic control unit (ECU) whether the difference between the pressure value data collected after the regeneration process is less than a threshold value set in the electronic control unit (ECU); Step eight, if the difference between the pressure value data collected after the regeneration process is not less than the threshold value set in the electronic control unit (ECU), return to step five, otherwise the gasoline engine particulate matter trap warning indicator light goes out.

8. A gasoline engine particulate matter trap regeneration method as claimed in claim 7, characterized in that: The system performs regeneration processing on the gasoline engine particulate matter filter for 20 minutes under preset conditions.

9. A gasoline engine particulate matter trap regeneration method as claimed in claim 7, characterized in that: The threshold value is 80 kPa.

10. An automobile, characterized in that: The regeneration system of the gasoline engine particulate matter trap configured for the automobile is controlled by the regeneration method of the gasoline engine particulate matter trap as claimed in any one of claims 7 to 9.

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