A method and device for detecting fuel sulfur content and desulfurizing, and a motor vehicle

Abstract

The present invention relates to the technical field of engine fuel sulfur content detection, and particularly relates to a fuel sulfur content detection and desulfurization method, device and motor vehicle. A fuel sulfur content detection and desulfurization method of the present invention includes the following steps: collecting fuel in a vehicle fuel tank and analyzing to obtain corresponding sulfur content data, and judging whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, the fuel is subjected to desulfurization treatment. In the present invention, the sulfur content detection and desulfurization of the fuel in the vehicle fuel tank are realized. When it is judged that the sulfur content of the fuel exceeds the standard, desulfurization treatment is carried out on it, thereby preventing the engine from consuming fuel with excessive sulfur content, avoiding the damage of high-sulfur fuel to the engine and post-treatment, giving full play to the performance of the engine and the purification effect of the post-treatment, prolonging the service life of the engine and post-treatment, and providing guarantee for the emissions to meet the regulatory limits.

Description

Technical Field

[0001] The present invention relates to the technical field of engine fuel sulfur content detection, and particularly relates to a method and device for fuel sulfur content detection and desulfurization, and a motor vehicle. Background Art

[0002] To promote emissions to meet increasingly stringent environmental protection regulations, starting from National V, the limit of sulfur content in vehicle fuel technical requirements is not more than 10 mg / kg, and accordingly, the price of the oil product has also increased to a certain extent. There is still fuel with excessive sulfur content in some areas, and such oil products have great harm to the performance of the engine. For the engine, sulfides in the carbon deposits after the combustion of high-sulfur fuel will cause the piston rings to get stuck, increase friction, exacerbate the wear of relevant components, impurities enter the lubricating oil, the lubrication effect of the engine becomes poor, and the oil change cycle is shortened; for the after-treatment (device), on the one hand, sulfates generated after the combustion of high-sulfur fuel will increase particulate emissions and smoke density, and on the other hand, it will cause "sulfur poisoning" of the after-treatment, premature failure, and the phenomenon of excessive emissions. Summary of the Invention

[0003] The present invention provides a method and device for fuel sulfur content detection and desulfurization, and a motor vehicle, which are used to solve at least one of the above technical problems.

[0004] The first aspect of the present invention provides a method for fuel sulfur content detection and desulfurization, including the following steps:

[0005] Collect the fuel in the vehicle fuel tank and analyze it to obtain the corresponding sulfur content data, and judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, perform desulfurization treatment on the fuel.

[0006] In an embodiment, collecting the fuel in the vehicle fuel tank and analyzing it to obtain the corresponding sulfur content data, and judging whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, perform desulfurization treatment on the fuel, including the following sub-steps:

[0007] S1: Collect the fuel in the first fuel tank and analyze it to obtain the corresponding sulfur content data;

[0008] S2: Judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S3; if not, execute step S4;

[0009] S3: Perform desulfurization treatment on the fuel in the first fuel tank, and transport the desulfurized fuel to the third fuel tank;

[0010] S4: Transport the fuel in the first fuel tank to the second fuel tank or the fuel system.

[0011] In an embodiment, after step S3, the following steps are further included:

[0012] S31: Collect the fuel in the third fuel tank and analyze it to obtain the corresponding sulfur content data;

[0013] S32: Determine whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S33; if not, execute step S34;

[0014] S33: Desulfurize the fuel in the third fuel tank, and transport the desulfurized fuel back to the third fuel tank, then repeat step S31;

[0015] S34: Transport the fuel in the third fuel tank to the second fuel tank or the fuel system.

[0016] In one embodiment, it further includes a step before step S1:

[0017] S0: Determine whether the refueling operation is completed according to whether the fuel level in the first fuel tank rises.

[0018] In one embodiment, in step S0, the fuel level in the first fuel tank is detected by a level sensor.

[0019] In one embodiment, if the sulfur content data is greater than a preset value, it is determined that the sulfur content of the fuel exceeds the standard; if the sulfur content data is less than or equal to the preset value, it is determined that the sulfur content of the fuel meets the standard.

[0020] In one embodiment, it further includes the following steps:

[0021] S5: If the sulfur content of the fuel exceeds the standard, send a signal to indicate that the fuel in the fuel tank is being desulfurized or has completed desulfurization.

[0022] In one embodiment, the fuel is collected by a sampling device, and the collected fuel is analyzed by a sulfur content analysis device to obtain the corresponding sulfur content data.

[0023] The second aspect of the present invention provides a fuel sulfur content detection and desulfurization device, including:

[0024] A data acquisition module, which is used to collect the fuel in the vehicle fuel tank and analyze it to obtain the corresponding sulfur content data;

[0025] A control module, which is connected to the data acquisition module to control the data acquisition module to perform data acquisition and receive the sulfur content data sent by the data acquisition module. The control module determines whether the sulfur content of the fuel exceeds the standard according to the sulfur content data; and

[0026] An execution module, the execution module is connected to the control module, the control module controls the execution module to transport the fuel with excessive sulfur content to the desulfurization device for desulfurization treatment, and the control module controls the execution module to transport the fuel with qualified sulfur content to the fuel system.

[0027] In one embodiment, it further includes: a prompt module, the prompt module is connected to the control module,

[0028] When the sulfur content of the fuel exceeds the standard, the control module controls the prompt module to send a signal to prompt that the fuel in the fuel tank is undergoing desulfurization treatment or has completed desulfurization treatment.

[0029] In one embodiment, the vehicle fuel tank includes:

[0030] A first fuel tank, which is used to refuel the vehicle;

[0031] A second fuel tank, the second fuel tank is connected to the fuel system and is used to provide fuel with qualified sulfur content to the fuel system; and

[0032] A third fuel tank, the third fuel tank is connected to the outlet of the desulfurization device and is used to store the fuel after desulfurization treatment;

[0033] Wherein, the data acquisition module respectively acquires the fuel in the first fuel tank and the third fuel tank and analyzes to obtain the corresponding sulfur content data; the execution module selectively connects the inlet of the desulfurization device and the second fuel tank with the first fuel tank, and the execution module also selectively connects the inlet of the desulfurization device and the second fuel tank with the third fuel tank.

[0034] In one embodiment, the execution module includes:

[0035] A first fuel pumping device, which is used to selectively connect the inlet of the desulfurization device and the third fuel tank with the first fuel tank;

[0036] A second fuel pumping device, which is used to connect the second fuel tank with the third fuel tank; and

[0037] A third fuel pumping device, which is used to connect the inlet of the desulfurization device with the third fuel tank;

[0038] Wherein, the first fuel pumping device, the second fuel pumping device and the third fuel pumping device are all connected to the control module.

[0039] In one embodiment, the execution module includes:

[0040] A first fuel pumping device, which is used to selectively connect the inlet of the desulfurization device and the second fuel tank with the first fuel tank;

[0041] A second fuel pumping device for selectively connecting the inlet of the desulfurization device, the second fuel tank and the third fuel tank.

[0042] The third aspect of the present invention provides a motor vehicle that uses the above fuel sulfur content detection and desulfurization method to detect or desulfurize fuel; or includes the above fuel sulfur content detection and desulfurization device.

[0043] Compared with the prior art, the advantages of the present invention are as follows: It realizes the detection and desulfurization of the sulfur content of the fuel in the vehicle fuel tank. When it is determined that the sulfur content of the fuel exceeds the standard, desulfurization treatment is carried out on it, thereby preventing the engine from consuming fuel with an excessive sulfur content, avoiding the damage of high-sulfur fuel to the engine and post-treatment, giving full play to the performance of the engine and the purification effect of the post-treatment, extending the service life of the engine and post-treatment, and providing guarantee for the emissions to meet the regulatory limits. Description of the Drawings

[0044] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the drawings.

[0045] Figure 1 It is a schematic diagram of the principle structure of the fuel sulfur content detection and desulfurization device of the present invention;

[0046] Figure 2 It is a schematic diagram of the structure of the fuel sulfur content detection and desulfurization device of the present invention;

[0047] Figure 3 It is a flowchart of the fuel sulfur content detection and desulfurization method of the present invention.

[0048] Reference Signs:

[0049] 1 - First fuel tank; 2 - Second fuel tank; 3 - Third fuel tank; 4 - First fuel pumping device; 5 - Second fuel pumping device;

[0050] 6 - Third fuel pumping device; 7 - Liquid level sensor; 8 - Sulfur content analysis device; 9 - Sampling valve;

[0051] 10 - Sampling pipe; 11 - Control module; 12 - Fuel system; 13 - Desulfurization device. Detailed Embodiments

[0052] The present invention will be further described below with reference to the drawings.

[0053] The present invention provides a fuel content detection and desulfurization method, including the following steps: Collect the fuel in the vehicle fuel tank and analyze to obtain the corresponding sulfur content data, and judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, desulfurize the fuel.

[0054] Among them, the above fuel is desulfurized by the desulfurization device 13.

[0055] The fuel content detection and desulfurization method of the present invention realizes the detection and desulfurization of the sulfur content of the fuel in the vehicle fuel tank. When it is judged that the sulfur content of the fuel exceeds the standard, desulfurization treatment is carried out on it, thereby preventing the engine from consuming fuel with an excessive sulfur content, avoiding the damage of high-sulfur fuel to the engine and aftertreatment, giving full play to the performance of the engine and the purification effect of the aftertreatment, prolonging the service life of the engine and the aftertreatment, and providing guarantee for the emissions to meet the regulatory limits.

[0056] In one embodiment, as Figure 3 shown, the fuel in the vehicle fuel tank is collected and analyzed to obtain the corresponding sulfur content data, and it is judged whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, the fuel is subjected to desulfurization treatment, including the following sub-steps:

[0057] S1: Collect the fuel in the first fuel tank 1 and analyze it to obtain the corresponding sulfur content data;

[0058] S2: Judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S3; if not, execute step S4;

[0059] S3: Subject the fuel in the first fuel tank 1 to desulfurization treatment, and transport the desulfurized fuel to the third fuel tank 3;

[0060] S4: Transport the fuel in the first fuel tank 1 to the second fuel tank 2 or the fuel system 12.

[0061] It should be noted that the first fuel tank 1 is used to refuel the vehicle, that is, the main fuel tank of the vehicle; the second fuel tank 2 is connected to the fuel system 12 to provide fuel with a qualified sulfur content to the fuel system 12, and it can be the auxiliary fuel tank of the vehicle; and the third fuel tank 3, the third fuel tank 3 is connected to the outlet of the desulfurization device 13 to store the fuel after desulfurization treatment.

[0062] In this embodiment, the user refuels the vehicle through the first fuel tank 1. When it is detected that the sulfur content of the fuel added this time meets the standard, the qualified fuel enters the second fuel tank 2 and then is provided to the fuel system 12 of the engine; when it is detected that the sulfur content of the fuel added this time exceeds the standard, the fuel in the first fuel tank 1 enters the desulfurization device 13 for desulfurization treatment. At the same time, the fuel after desulfurization treatment does not enter the first fuel tank 1, but flows into the third fuel tank 3 for storage to avoid mixing of the fuel after desulfurization treatment with the fuel that has not been desulfurized and exceeds the standard.

[0063] Furthermore, after step S3, the following steps are also included:

[0064] S31: Collect the fuel in the third fuel tank 3 and analyze it to obtain the corresponding sulfur content data;

[0065] S32: Determine whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S33; if not, execute step S34;

[0066] S33: Desulfurize the fuel in the third fuel tank 3, and transport the desulfurized fuel back to the third fuel tank 3, then repeat step S31;

[0067] S34: Transport the fuel in the third fuel tank 3 to the second fuel tank 2 or the fuel system 12.

[0068] In this embodiment, the user refuels the vehicle through the first fuel tank 1. When it is detected that the sulfur content of the fuel added this time meets the standard, the qualified fuel enters the second fuel tank 2 and is then supplied to the fuel system 12 of the engine; when it is detected that the sulfur content of the fuel added this time exceeds the standard, the fuel in the first fuel tank 1 enters the desulfurization device 13 for desulfurization treatment. At the same time, the fuel after desulfurization treatment does not enter the first fuel tank 1 again, but flows into the third fuel tank 3, and the sulfur content of the fuel after desulfurization treatment is detected again. If it still does not meet the standard, the fuel in the third fuel tank 3 is transported back to the desulfurization device 13 for desulfurization treatment until it is detected that the fuel in the third fuel tank 3 meets the standard, and then it is transported to the second fuel tank 2 and supplied to the fuel system 12 of the engine.

[0069] Among them, only the qualified fuel is transported to the second fuel tank 2, that is, only qualified fuel is stored in the second fuel tank 2, so as to ensure that the engine consumes fuel with a sulfur content that meets the standard. At the same time, since a third fuel tank 3 is added to store the desulfurized fuel, it can avoid the mixing of the qualified fuel after desulfurization treatment with the un-desulfurized and over-standard fuel in the first fuel tank 1, and also avoid the mixing of the fuel that still does not meet the standard after desulfurization treatment with the qualified fuel added by the user to the first fuel tank 1 again.

[0070] In one embodiment, it further includes a step before step S1:

[0071] S0: Determine whether the refueling operation is completed according to whether the fuel level in the first fuel tank 1 rises.

[0072] In other words, after the user's one refueling operation is completed, the fuel in the first fuel tank 1 is sampled and analyzed for its sulfur content.

[0073] Specifically, in step S0, a liquid level sensor 7 is used to detect whether the fuel level in the first fuel tank 1 rises.

[0074] In addition, before step S31, the following steps are included: step S30: Determine whether the refueling operation is completed according to whether the fuel level in the third fuel tank 3 increases. In other words, after the fuel that has undergone desulfurization treatment completely enters the third fuel tank 3, the fuel in the third fuel tank 3 is sampled and analyzed for its sulfur content.

[0075] In one embodiment, if the sulfur content data is greater than a preset value, it is determined that the sulfur content of the fuel exceeds the standard; if the sulfur content data is less than or equal to the preset value, it is determined that the sulfur content of the fuel meets the standard.

[0076] Among them, the preset value can be the regulatory limit of the sulfur content.

[0077] In one embodiment, the following steps are further included:

[0078] S5: If the sulfur content of the fuel exceeds the standard, a signal is sent to prompt the vehicle driver that the fuel in the fuel tank is undergoing desulfurization treatment or has completed desulfurization treatment.

[0079] In one embodiment, the fuel is collected by a sampling device, and the collected fuel is analyzed by a sulfur content analysis device to obtain corresponding sulfur content data.

[0080] For example, in step S1, collecting the fuel in the first fuel tank 1 and analyzing it to obtain corresponding sulfur content data includes: collecting the fuel in the first fuel tank 1 by a sampling device and obtaining corresponding sulfur content data by the sulfur content analysis device 8.

[0081] For example, in step S32, collecting the fuel in the third fuel tank 3 and analyzing it to obtain corresponding sulfur content data includes: collecting the fuel in the third fuel tank 3 by a sampling device and obtaining corresponding sulfur content data by the sulfur content analysis device 8.

[0082] The present invention also provides a fuel sulfur content detection and desulfurization device, as Figures 1-2 shown in, including: a data acquisition module, which is used to collect the fuel in the vehicle fuel tank and analyze it to obtain corresponding sulfur content data; a control module 11, the control module 11 is connected to the data acquisition module to control the data acquisition module to perform data acquisition and receive the sulfur content data sent by the data acquisition module, and the control module 11 determines whether the sulfur content of the fuel exceeds the standard according to the sulfur content data; and an execution module, the execution module is connected to the control module 11, the control module 11 controls the execution module to transport the fuel with excessive sulfur content to the desulfurization device 13 for desulfurization treatment, and the control module 11 controls the execution module to transport the fuel with qualified sulfur content to the fuel system 12.

[0083] The fuel sulfur content detection and desulfurization device of the present invention can achieve the detection and desulfurization of the sulfur content of fuel. The data acquisition module samples and detects the fuel in the vehicle fuel tank, and transmits the sulfur content data obtained after detection to the control module 11. The control module 11 determines whether the sulfur content data exceeds the standard. When the control module 11 determines that the sulfur content data exceeds the standard, the execution module transports the fuel with excessive sulfur content to the desulfurization device 13 for desulfurization treatment, and only transports the fuel with qualified sulfur content to the fuel system 12, thereby preventing the engine from consuming fuel with excessive sulfur content, avoiding the damage of high-sulfur fuel to the engine and aftertreatment, giving full play to the performance of the engine and the purification effect of the aftertreatment, extending the service life of the engine and the aftertreatment, and providing guarantee for the emissions to meet the regulatory limits.

[0084] It should be noted that the above control module 11 can be the vehicle's on-board computer.

[0085] In one embodiment, the vehicle fuel tank includes: a first fuel tank 1 for refueling the vehicle; a second fuel tank 2 connected to the fuel system 12 for providing fuel with qualified sulfur content to the fuel system 12; and a third fuel tank 3 connected to the outlet of the desulfurization device 13 for storing the fuel after desulfurization treatment. Among them, the data acquisition module respectively collects the fuel in the first fuel tank 1 and the third fuel tank 3 and analyzes to obtain the corresponding sulfur content data; the execution module selectively connects the inlet of the desulfurization device 13 and the second fuel tank 2 with the first fuel tank 1, and the execution module also selectively connects the inlet of the desulfurization device 13 and the second fuel tank 2 with the third fuel tank 3.

[0086] In this embodiment, the user refuels the vehicle through the first fuel tank 1. When it is detected that the sulfur content of the fuel added this time meets the standard, the execution module connects the first fuel tank 1 with the second fuel tank 2, so that the qualified fuel enters the second fuel tank 2 and then is provided to the fuel system 12 of the engine; when it is detected that the sulfur content of the fuel added this time exceeds the standard, the execution module connects the first fuel tank 1 with the inlet of the desulfurization device 13, so that the fuel in the first fuel tank 1 enters the desulfurization device 13 for desulfurization treatment. At the same time, the fuel after desulfurization treatment does not enter the first fuel tank 1 again, but flows into the third fuel tank 3 to detect whether the fuel after desulfurization treatment meets the standard again. If it still does not meet the standard, the execution module transports the fuel in the third fuel tank 3 to the desulfurization device 13 for desulfurization treatment again until it is detected that the fuel in the third fuel tank 3 meets the standard, and then it is transported to the second fuel tank 2 and then provided to the fuel system 12 of the engine.

[0087] Among them, the execution module only transports the qualified fuel to the second fuel tank 2, that is, only qualified fuel is stored in the second fuel tank 2, so as to ensure that the engine consumes fuel with qualified sulfur content. At the same time, since a third fuel tank 3 is added to store the fuel after desulfurization, it can avoid the pollution of the qualified fuel that the user adds to the first fuel tank 1 again by the fuel that still does not meet the standard after desulfurization treatment.

[0088] Specifically, the above-mentioned execution module is a fuel pumping device.

[0089] Among them, in one embodiment, the execution module includes: a first fuel pumping device 4, which is used to selectively connect the inlet of the desulfurization device 13 and the third fuel tank 3 with the first fuel tank 1; a second fuel pumping device 5, which is used to connect the second fuel tank 2 with the third fuel tank 3; and a third fuel pumping device 6, which is used to connect the inlet of the desulfurization device 13 with the third fuel tank 3. Among them, the first fuel pumping device 4, the second fuel pumping device 5 and the third fuel pumping device 6 are all connected to the control module 11.

[0090] In another embodiment, the execution module includes: a first fuel pumping device 4, which is used to selectively connect the inlet of the desulfurization device 13 and the second fuel tank 2 with the first fuel tank 1; and a second fuel pumping device 5, which is used to selectively connect the inlet of the desulfurization device 13 and the second fuel tank 2 with the third fuel tank 3. Among them, the first fuel pumping device 4 and the second fuel pumping device 5 are all connected to the control module 11.

[0091] Preferably, in one embodiment, a liquid level sensor 7 is provided in both the first fuel tank 1 and the second fuel tank 2, and the liquid level sensor 7 is connected to the control module 11.

[0092] In this embodiment, by setting the liquid level sensor 7, the liquid level state of the fuel in the vehicle fuel tank can be detected and a signal is sent to the control module 11. The control module 11 judges whether the refueling action is completed according to the liquid level state of the fuel. When the liquid level no longer continues to rise, the control module 11 judges that the refueling action is completed.

[0093] In other words, when the fuel liquid levels in the first fuel tank 1 and the third fuel tank 3 no longer rise (the refueling action is completed), the data acquisition module then acquires the fuel in the fuel tank to analyze its sulfur content.

[0094] In one embodiment, the data acquisition module includes: a sampling device and a sulfur content analysis device 8. The sampling device is connected to the sulfur content analysis device 8, and both the sampling device and the sulfur content analysis device 8 are electrically connected to the control module 11.

[0095] Specifically, the sampling device includes a sampling pipe 10 and a sampling valve 9 provided on the sampling pipe 10. The sulfur content analysis device 8 can be a rapid fuel sulfur content analysis device.

[0096] More specifically, a sampling device and a sulfur content analysis device 8 are respectively arranged corresponding to the first fuel tank 1 and the third fuel tank 3.

[0097] In one embodiment, the fuel sulfur content detection and desulfurization device further includes a prompting module, and the prompting module is connected to the control module 11. When the sulfur content of the fuel exceeds the standard, the control module 11 controls the prompting module to send a signal to prompt that the fuel in the fuel tank is undergoing desulfurization treatment or has completed desulfurization treatment.

[0098] Specifically, the prompting module includes a voice promptor and / or a light promptor.

[0099] Another aspect of the present invention further provides a motor vehicle, which adopts the above fuel sulfur content detection and desulfurization method, or includes the above fuel sulfur content detection and desulfurization device.

[0100] Embodiment

[0101] The fuel sulfur content detection and desulfurization device includes: a first liquid level sensor, a second liquid level sensor, a first sampling valve and a first sampling pipe, a second sampling valve and a second sampling pipe, a first fuel sulfur content rapid analyzer, a second fuel sulfur content rapid analyzer, a first fuel pumping device 4, a second fuel pumping device 5, a vehicle computer, and a voice promptor and a light promptor.

[0102] (1) When the vehicle refuels, the liquid level of the fuel in the first fuel tank 1 gradually rises, and the vehicle computer reads the signal of the first liquid level sensor. When the liquid level of the first fuel tank 1 no longer continues to rise, the vehicle computer determines that the user has completed the refueling operation.

[0103] (2) The vehicle computer controls the first sampling valve to open, and the fuel enters the first fuel sulfur content rapid analyzer through the first sampling pipe. The first fuel sulfur content rapid analyzer sends the final sulfur content data to the vehicle computer through a data line, and the judgment module in the vehicle computer compares the fuel sulfur content with the regulatory limit.

[0104] (3) If the sulfur content of the fuel in the first fuel tank 1 meets the standard, the vehicle computer controls the first fuel pumping device 4 to pump the qualified fuel into the second fuel tank 2.

[0105] (4) If the sulfur content of the fuel in the first fuel tank 1 exceeds the standard, the vehicle computer controls the voice promptor and the light promptor to work, reminding the driver that the sulfur content exceeds the standard and that desulfurization operation is about to be carried out. At this time, the vehicle computer controls the first fuel pumping device 4 to pump the fuel with excessive sulfur content into the desulfurization device 13 for desulfurization, and the fuel after desulfurization enters the third fuel tank 3.

[0106] The vehicle computer reads the signal of the second liquid level sensor. When the liquid level of the fuel tank no longer rises, the vehicle computer controls the second sampling valve to open, and the fuel enters the second rapid fuel sulfur content analyzer through the second sampling pipe. The second rapid fuel sulfur content analyzer samples and analyzes the fuel in the third fuel tank 3, and sends the result to the vehicle computer. The judgment module in the vehicle computer compares the fuel sulfur content with the regulatory limit. If the fuel sulfur content meets the standard, the vehicle computer controls the second fuel pumping device 5 to pump the fuel in the third fuel tank 3 into the second fuel tank 2; if the fuel sulfur content does not meet the standard, the vehicle computer controls the third fuel pumping device 6 to pump the fuel in the third fuel tank 3 into the desulfurization device 13 for re-desulfurization until the sulfur content meets the standard.

[0107] Although the present invention has been described with reference to the preferred embodiments, various modifications can be made to it and components thereof can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for detecting and desulfurizing the sulfur content of fuel oil, characterized in that, It includes the following steps: Collect the fuel in the vehicle fuel tank and analyze it to obtain the corresponding sulfur content data, and judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, desulfurize the fuel. Collect the fuel in the vehicle fuel tank and analyze it to obtain the corresponding sulfur content data, and judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, desulfurize the fuel, including the following sub-steps: S1: Collect the fuel in the first fuel tank and analyze it to obtain the corresponding sulfur content data; S2: Judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S3; if not, execute step S4; S3: Desulfurize the fuel in the first fuel tank and transport the desulfurized fuel to the third fuel tank; S4: Transport the fuel in the first fuel tank to the second fuel tank or the fuel system; After step S3, the following steps are also included: S31: Collect the fuel in the third fuel tank and analyze it to obtain the corresponding sulfur content data; S32: Judge whether the sulfur content of the fuel exceeds the standard according to the sulfur content data. If so, execute step S33; if not, execute step S34; S33: Desulfurize the fuel in the third fuel tank and transport the desulfurized fuel to the third fuel tank, and then repeat step S31; S34: Transport the fuel in the third fuel tank to the second fuel tank or the fuel system.

2. The method for detecting and desulfurizing the sulfur content of fuel oil according to claim 1, characterized in that: It also includes the steps before step S1: S0: Judge whether the refueling operation is completed according to whether the fuel level in the first fuel tank rises.

3. The method for detecting and desulfurizing the sulfur content of fuel oil according to claim 2, characterized in that: In step S0, the fuel level in the first fuel tank is detected by a level sensor.

4. The method for detecting and desulfurizing the sulfur content of fuel oil according to claim 1, characterized in that, If the sulfur content data is greater than the preset value, it is judged that the sulfur content of the fuel exceeds the standard; if the sulfur content data is less than or equal to the preset value, it is judged that the sulfur content of the fuel meets the standard.

5. The method for detecting and desulfurizing the sulfur content of fuel oil according to claim 1, characterized in that, It also includes the following steps: S5: If the sulfur content of the fuel exceeds the standard, send a signal to indicate that the fuel in the fuel tank is being desulfurized or has been desulfurized.

6. The method for detecting and desulfurizing the sulfur content of fuel oil according to claim 1, characterized in that: Collect the fuel through a sampling device and analyze the collected fuel through a sulfur content analysis device to obtain the corresponding sulfur content data.

7. A device for detecting and desulfurizing the sulfur content of fuel oil, used to implement the method for detecting and desulfurizing the sulfur content of fuel oil according to any one of claims 1-6, characterized in that, It includes: A data acquisition module for collecting the fuel in the vehicle fuel tank and analyzing it to obtain the corresponding sulfur content data; A control module, which is connected to the data acquisition module to control the data acquisition module to collect data and receive the sulfur content data sent by the data acquisition module. The control module judges whether the sulfur content of the fuel exceeds the standard according to the sulfur content data; And An execution module, which is connected to the control module. The control module controls the execution module to transport the fuel with excessive sulfur content to a desulfurization device for desulfurization treatment, and the control module controls the execution module to transport the fuel with qualified sulfur content to the fuel system; The vehicle fuel tank includes: A first fuel tank for refueling the vehicle; A second fuel tank, which is connected to the fuel system and is used to provide fuel with qualified sulfur content to the fuel system; and A third fuel tank, which is connected to the outlet of the desulfurization device and is used to store the fuel after desulfurization treatment; Wherein, the data acquisition module respectively acquires the fuel in the first fuel tank and the third fuel tank and analyzes to obtain the corresponding sulfur content data; the execution module selectively connects the inlet of the desulfurization device and the second fuel tank with the first fuel tank, and the execution module also selectively connects the inlet of the desulfurization device and the second fuel tank with the third fuel tank.

8. The device for detecting and desulfurizing the sulfur content of fuel oil according to claim 7, characterized in that, It further includes: A prompting module, the prompting module is connected to the control module, When the sulfur content of the fuel exceeds the standard, the control module controls the prompting module to send a signal to prompt that the fuel in the fuel tank is undergoing desulfurization treatment or has completed desulfurization treatment.

9. The fuel sulfur content detection and desulfurization device according to claim 7 or 8, characterized in that, The execution module includes: A first fuel pumping device, which is used to selectively connect the inlet of the desulfurization device and the third fuel tank with the first fuel tank; A second fuel pumping device, which is used to connect the second fuel tank with the third fuel tank; and A third fuel pumping device, which is used to connect the inlet of the desulfurization device with the third fuel tank; Wherein, the first fuel pumping device, the second fuel pumping device and the third fuel pumping device are all connected to the control module.

10. The fuel sulfur content detection and desulfurization device according to claim 7 or 8, characterized in that, The execution module includes: A first fuel pumping device, which is used to selectively connect the inlet of the desulfurization device and the second fuel tank with the first fuel tank; A second fuel pumping device, which is used to selectively connect the inlet of the desulfurization device and the second fuel tank with the third fuel tank.

11. A motor vehicle, characterized in that, Using the fuel sulfur content detection and desulfurization method according to any one of claims 1-6 above to detect or desulfurize the fuel; or including the fuel sulfur content detection and desulfurization device according to any one of claims 7-10 above.

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