CN117703587A - Fuel oil detection method and device and vehicle - Google Patents
Fuel oil detection method and device and vehicle Download PDFInfo
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- 238000001514 detection method Methods 0.000 title claims abstract description 125
- 239000000295 fuel oil Substances 0.000 title claims description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 329
- 239000000446 fuel Substances 0.000 claims abstract description 165
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 94
- 239000002828 fuel tank Substances 0.000 claims abstract description 83
- 230000023556 desulfurization Effects 0.000 claims abstract description 75
- 238000003745 diagnosis Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 117
- 239000011593 sulfur Substances 0.000 claims description 117
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 52
- 230000008859 change Effects 0.000 claims description 42
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 26
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- 238000012423 maintenance Methods 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- 230000008929 regeneration Effects 0.000 description 11
- 238000011069 regeneration method Methods 0.000 description 11
- 101100518501 Mus musculus Spp1 gene Proteins 0.000 description 9
- 231100000572 poisoning Toxicity 0.000 description 5
- 230000000607 poisoning effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000002283 diesel fuel Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
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Abstract
The invention relates to the technical field of engines, and discloses a fuel detection method, a fuel detection device and a vehicle, wherein the method comprises the following steps: after fuel injection into the fuel tank is detected, acquiring first conversion efficiency of a post-processor and fault information of a vehicle-mounted diagnosis system; if the first conversion efficiency meets the preset detection condition and the fault information indicates that no fault exists currently, triggering a desulfurization mode to desulfurize the post-processor; obtaining the second conversion efficiency of the post-desulfurization processor; and determining a detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency. The method can improve the accuracy of detecting the fuel in the fuel tank, thereby improving the driving safety and the operation safety of the operation vehicle.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a fuel detection method and device and a vehicle.
Background
With further increasing environmental protection, diesel engine requirements for diesel quality are also increasing. However, since the working environment of the diesel-powered vehicle is generally far away from the gas station, the user is liable to add fuel with a large sulfur content carelessly when adding fuel, and therefore, the fuel needs to be detected to ensure driving safety.
Disclosure of Invention
In view of the above, the present invention provides a fuel detection method, a device and a vehicle, so as to solve the problem of low accuracy of fuel detection results in the related art.
In a first aspect, the present invention provides a fuel detection method for a work vehicle, the method comprising:
after fuel injection into the fuel tank is detected, acquiring the first conversion efficiency of the post-processor and fault information of a vehicle-mounted diagnosis system;
if the first conversion efficiency meets a preset detection condition and the fault information indicates that no fault exists currently, triggering a desulfurization mode to desulfurize the postprocessor;
obtaining a second conversion efficiency of the post-processor after desulfurization;
and determining a detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the after-treatment device after desulfurization and the preset conversion efficiency.
According to the fuel detection method provided by the embodiment of the invention, after the fuel is injected into the fuel tank, the first conversion efficiency of the postprocessor and the fault information of the vehicle-mounted diagnosis system are obtained, if the first conversion efficiency meets the preset detection condition and the fault information represents that no fault exists currently, the desulfurization mode is triggered to desulfurize the postprocessor, so that the sulfur content in the postprocessor is timely reduced while the error touch of the desulfurization mode caused by the fault of the vehicle-mounted diagnosis system is avoided; the detection result that the fuel in the fuel tank is urea crystal or high-sulfur fuel is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, so that the accuracy of fuel detection is improved, and the driving and operation safety of the operation vehicle are further improved.
In some optional embodiments, the determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-processor after desulfurization and the preset conversion efficiency includes:
if the second conversion efficiency is greater than the preset conversion efficiency, acquiring a third conversion efficiency of the postprocessor in a preset temperature range so as to obtain a variation trend of the third conversion efficiency;
and determining a detection result of the post-processor based on the relation between the change trend and a preset change trend, wherein the detection result comprises urea crystals or high-sulfur fuel oil.
According to the fuel oil detection method provided by the embodiment of the invention, the change trend of the third conversion efficiency is obtained by acquiring the third conversion efficiency of the post-processor in the preset temperature range when the second conversion efficiency is larger than the preset conversion efficiency, so that the detection result of the fuel oil in the fuel tank is determined based on the relation between the change trend and the preset change trend, further misjudgment of sulfur poisoning of the working vehicle is avoided, and the safety of the working vehicle is ensured.
In some optional embodiments, the determining the detection result of the fuel in the fuel tank based on the relationship between the variation trend and the preset variation trend includes:
If the change trend meets the preset change trend, determining that the detection result of the fuel in the fuel tank is the high-sulfur fuel, wherein the preset change trend represents that the rising rate of the third conversion efficiency is larger than a preset rising rate;
and triggering the high-sulfur record of the post-processor to carry out operation reminding on the operation vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, when the rising rate of the third conversion efficiency is larger than the preset rising rate, the detection result of the fuel oil in the fuel tank is determined to be the high-sulfur fuel oil, and the high-sulfur record of the post-processor is triggered, so that the operation reminding is carried out on the operation vehicle, and a basis is provided for the torque limiting and maintenance of the operation vehicle.
In some alternative embodiments, the triggering the high sulfur recording of the post processor to alert the work vehicle of the work includes:
obtaining calibration information and fourth conversion efficiency of the post-processor when a desulfurization mode is triggered, wherein the calibration information represents conversion time when the conversion efficiency reaches preset conversion efficiency;
determining the conversion time of the fourth conversion efficiency reaching a preset conversion efficiency based on the calibration information;
and triggering the high-sulfur record of the post-processor based on the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency so as to carry out operation reminding on the operation vehicle, wherein the operation reminding comprises high-sulfur reminding or engine torque limiting reminding.
According to the fuel oil detection method provided by the embodiment of the invention, the calibration information and the fourth conversion efficiency of the post processor when the desulfurization mode is triggered are acquired, so that the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is determined based on the calibration information, the high-sulfur record of the post processor is triggered, the accuracy of the high-sulfur record is further improved, and further the high-sulfur prompt or the engine torque limiting prompt is carried out on the triggered working vehicle.
In some optional embodiments, the triggering the high sulfur recording of the post-processor based on the conversion time for the fourth conversion efficiency to reach a preset conversion efficiency to perform a job alert on the working vehicle includes:
acquiring safe running time;
comparing the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency with the safe operation time to obtain a time comparison result;
if the time comparison result shows that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is smaller than the safe running time, triggering the high-sulfur record of the post-processor to carry out engine torque limiting reminding on the working vehicle;
and if the time comparison result indicates that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor so as to carry out high-sulfur reminding on the working vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is determined based on the calibration information, and the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is compared with the safe running time, so that the high-sulfur record of the post-processor is triggered when the conversion time is smaller than the safe running time, and further the engine torque limiting reminding is carried out on the operation vehicle, so that the operation personnel are reminded of timely maintaining the operation vehicle; the high-sulfur record of the post processor is triggered when the conversion time of the fourth conversion efficiency reaches the preset conversion efficiency and is larger than or equal to the safe operation time, and the high-sulfur reminding is carried out on the operation vehicle, so that operators are informed that the fuel added into the operation vehicle is high-sulfur fuel, and a large risk exists when the operation vehicle works by adopting the fuel.
In some optional embodiments, the determining the detection result of the fuel in the fuel tank based on the relationship between the variation trend and the preset variation trend includes:
if the change trend does not meet the preset change trend, determining that the detection result of the fuel in the fuel tank is the urea crystallization, wherein the preset change trend represents that the rising rate of the third conversion efficiency is smaller than or equal to a preset rising rate;
And triggering maintenance reminding of the working vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, when the rising rate of the third conversion efficiency is smaller than or equal to the preset rising rate, the detection result of the fuel oil in the fuel tank is determined to be urea crystallization, namely the post-processor generates urea crystallization, so that maintenance reminding of the operation vehicle is triggered, an operator is reminded of timely maintaining the operation vehicle, and larger damage to the operation vehicle is avoided.
In some optional embodiments, the determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-processor after desulfurization and the preset conversion efficiency includes:
and if the second conversion efficiency is smaller than or equal to the preset conversion efficiency, triggering an engine torque limiting reminding of the working vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, when the second conversion efficiency is smaller than or equal to the preset conversion efficiency, the engine torque limiting reminding of the working vehicle is triggered to remind the working personnel that the current sulfur content of the working vehicle is higher, so that the safety operation of the transmitter is greatly influenced, and the working needs to be stopped and maintained as soon as possible.
In some alternative embodiments, the method further comprises:
acquiring fuel consumption of fuel in the fuel tank, running time of an engine and median of desulfurization temperature after desulfurization of the postprocessor;
and determining the sulfur content of the fuel in the fuel tank based on the fuel consumption, the running time of the engine and the median of the desulfurization temperature.
According to the fuel oil detection method provided by the embodiment of the invention, the fuel oil consumption of the fuel oil in the fuel tank after the desulfurization of the post-processor, the running time of the engine and the median of the desulfurization temperature are obtained, and the sulfur content of the fuel oil in the fuel tank is determined based on the fuel oil consumption, the running time of the engine and the median of the desulfurization temperature, so that the accuracy of calculating the sulfur content of the fuel oil in the fuel tank is improved.
In a second aspect, the present invention provides a fuel detection device for use in a work vehicle, the device comprising:
the information acquisition module is used for acquiring the first conversion efficiency of the post-processor and fault information of the vehicle-mounted diagnosis system after detecting that the fuel is injected into the fuel tank;
the fuel oil desulfurization module is used for triggering a desulfurization mode to desulfurize the postprocessor if the first conversion efficiency meets a preset detection condition and the fault information indicates that no fault exists currently;
The efficiency acquisition module is used for acquiring the second conversion efficiency of the post-processor after desulfurization;
and the result determining module is used for determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the after-treatment device after desulfurization and the preset conversion efficiency.
According to the fuel detection device provided by the embodiment of the invention, after the fuel is injected into the fuel tank, the first conversion efficiency of the postprocessor and the fault information of the vehicle-mounted diagnosis system are obtained, if the first conversion efficiency meets the preset detection condition and the fault information represents that no fault exists currently, the desulfurization mode is triggered to desulfurize the postprocessor, so that the sulfur content in the postprocessor is timely reduced while the error touch of the desulfurization mode caused by the fault of the vehicle-mounted diagnosis system is avoided; the detection result that the fuel in the fuel tank is urea crystal or high-sulfur fuel is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, so that the accuracy of fuel detection is improved, and the driving and operation safety of the operation vehicle are further improved.
In a third aspect, the present invention provides a vehicle comprising: the device comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete communication with each other through the communication bus; the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation of the fuel oil detection method;
The display is used for displaying the ultrasonic image and path navigation information of the to-be-guided piece.
In a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon computer instructions for causing a computer to execute the fuel detection method of the first aspect or any one of its corresponding embodiments.
It should be noted that, the description of the corresponding beneficial effects of the fuel detection method is omitted herein for brevity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a fuel detection method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a fuel detection method according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another fuel detection method according to an embodiment of the invention;
FIG. 4 is a block diagram showing the structure of a fuel detecting device according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a vehicle according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the related technology of fuel detection, because the working environment of a diesel using vehicle is generally far away from a gas station, a user easily and carelessly adds fuel with larger sulfur content when adding fuel, therefore, the fuel needs to be detected to ensure driving safety, but most vehicles usually judge that the sulfur content of the fuel exceeds the standard, which is determined based on the conversion efficiency of nitrogen oxides, for example, the monitoring value of the conversion efficiency of nitrogen oxides is compared with the standard value of the conversion efficiency of nitrogen oxides, if the deviation rate reaches a set threshold, the locking failure is caused by the exceeding of the sulfur content of the fuel, and the sulfur regeneration request is triggered; and carrying out regeneration demand analysis according to the sulfur regeneration request, judging whether the sulfur regeneration request is passed according to the regeneration demand analysis, and if the sulfur regeneration request is passed, carrying out desulfurization in a forced regeneration mode. However, both sulfur poisoning and urea crystallization can lead to the situation that the nitrogen oxide conversion efficiency is low, so that the situation of misjudgment on sulfur poisoning exists; in addition, due to the specificity of the crane, the running time and the fuel consumption of the idle working condition and the driving working condition are not fixed, the high sulfur cannot be accurately judged through the oil consumption interval and the regeneration accumulated mileage, and meanwhile, the content of the used sulfur cannot be estimated.
Based on the above, the embodiment of the invention provides a fuel detection method, a fuel detection device and a vehicle, after fuel injection into a fuel tank is detected, the first conversion efficiency of a post-processor and fault information of a vehicle-mounted diagnosis system are obtained, if the first conversion efficiency meets preset detection conditions and the fault information represents that no fault exists currently, a desulfurization mode is triggered to desulfurize the post-processor, and the sulfur content in the post-processor is timely reduced while error touch of the desulfurization mode caused by the fault of the vehicle-mounted diagnosis system is avoided; the detection result that the fuel in the fuel tank is urea crystal or high-sulfur fuel is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, so that the accuracy of fuel detection is improved, and the driving and operation safety of the operation vehicle are further improved.
In this embodiment, a fuel detection method is provided, which may be used for a working vehicle, and fig. 1 is a flowchart of a fuel detection method according to an embodiment of the present invention, as shown in fig. 1, where the flowchart includes the following steps:
step S101, after fuel injection into the fuel tank is detected, the first conversion efficiency of the post-processor and fault information of the vehicle-mounted diagnosis system are obtained.
The first conversion efficiency of the aftertreatment device may be determined based on a change of the upstream and downstream nitrogen oxides of the engine, for example, a difference between the upstream and downstream nitrogen oxides is calculated, and then the difference is divided by the upstream nitrogen oxide to obtain the first conversion efficiency (SCR conversion efficiency) of the aftertreatment device, which is denoted as η1 in this embodiment.
In some alternative embodiments, the fuel level in the fuel tank may be determined based on a change in the fuel level in the fuel tank when detecting whether fuel is being injected into the fuel tank, and the fuel tank may be determined to have been injected when an increase in the fuel level in the fuel tank is detected. At this time, in order to detect the safety of the newly added fuel, the conversion efficiency of the post-processor after the fuel injection is performed is calculated to determine whether the fuel injected into the fuel tank is high sulfur fuel. Meanwhile, in order to improve the accuracy and reliability of desulfurization of the postprocessor, fault information of the vehicle-mounted diagnosis system needs to be acquired, so that the situation that the first conversion efficiency of the postprocessor is greatly deviated due to the fact that the vehicle-mounted diagnosis system breaks down is avoided.
Step S102, if the first conversion efficiency meets the preset detection condition and the fault information indicates that no fault exists currently, a desulfurization mode is triggered to desulfurize the post-processor.
After the preset detection condition B indicates that the fuel is injected into the fuel tank, the first conversion efficiency of the post-processor is smaller than the lowest conversion efficiency of desulfurizing the fuel of the post-processor; the conversion efficiency change rate of the post-processor is not in the calibration range and lasts for a period of time after the fuel is injected into the fuel tank, wherein the conversion efficiency change rate keta 1 of the post-processor is obtained by subtracting the product of the first conversion efficiency of the fuel in the tank at the time t2 and the product of the t2 from the product of the first conversion efficiency of the post-processor at the time t1 and the t1, and then dividing the product by the time difference between t1 and t2, namely keta 1= (eta 1t 1-eta 1t 2)/(t 1-t 2).
In some alternative embodiments, whether the user charges fuel into the fuel tank or not may be determined based on the liquid level variation amount of the post-processor, if the user charges fuel into the fuel tank not, the working vehicle normally works, if the user charges fuel into the fuel tank, then at intervals, for example, 30s, it is determined whether the first conversion efficiency of the post-processor is less than the lowest conversion efficiency of desulfurizing the fuel of the post-processor, that is, the fuel conversion efficiency of triggering the desulfurizing mode, or kη1 is not in the calibration range and lasts for a period of time, at this time, the ECU checks whether there is a failure related to the vehicle-mounted diagnostic system, for example, a urea pump failure, a urea nozzle failure, a urea pipeline failure, etc., where abnormal urea injection may cause the first conversion efficiency of the post-processor to be low; sensor failures of nitrogen oxide sensors, exhaust temperature sensors, etc. may result in a first conversion inefficiency of the aftertreatment device. And if the first conversion efficiency meets the preset detection condition and the vehicle-mounted diagnosis system fails, triggering a desulfurization mode to desulfurize the post-processor.
And if the first conversion efficiency of the after-treatment device is larger than or equal to the lowest conversion efficiency of the oil desulfurization of the after-treatment device at intervals, or if the k eta 1 is not in the calibration range and does not last for a period of time, or if the k eta 1 is in the calibration range, the working vehicle normally works. And if the vehicle-mounted diagnosis system fails, triggering the alarm of the vehicle-mounted diagnosis system failure.
In some alternative embodiments, when the desulfurization mode is triggered, when the engine judges that the vehicle speed is not 0 and the desulfurization temperature (SCR temperature) reaches a certain value, the condition of vehicle regeneration is reached, a wall-flow type particle catcher DPF yellow lamp flashes, vehicle regeneration is actively carried out, the temperature is increased by increasing the rotation speed of the engine, so that sulfur-containing substances and carbon in post-treatment are decomposed, and when the detected carbon content is smaller than a certain value, the desulfurization is automatically ended; when the vehicle speed is 0 and a power taking signal is provided, if the operation is carried out, the DPF yellow lamp of the wall flow type particle catcher is normally on, the engine can automatically speed up to 1000 revolutions, the post-treatment temperature is increased through post-injection of the engine, and when the carbon content is detected to be smaller than a certain value, the desulfurization is automatically ended.
Step S103, obtaining the second conversion efficiency of the post-desulfurization processor.
The second conversion efficiency of the post-desulfurization processor is denoted as η2 in this example.
Step S104, determining a detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency.
The magnitude relation between the second conversion efficiency eta 2 of the post-desulfurization processor and the preset conversion efficiency C is larger than, equal to and smaller than, and the preset conversion efficiency C is used for representing the minimum conversion efficiency of the post-desulfurization or regeneration processor at high temperature.
In some optional embodiments, when determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency and the preset conversion efficiency of the post-desulfurization processor, if the second conversion efficiency is greater than the preset conversion efficiency, obtaining the third conversion efficiency of the post-desulfurization processor in the preset temperature range, so as to obtain the variation trend of the third conversion efficiency; determining a detection result of fuel in the fuel tank based on the relation between the change trend and a preset change trend, wherein the detection result comprises urea crystals or high-sulfur fuel; and acquiring the third conversion efficiency of the post processor in the preset temperature range when the second conversion efficiency is larger than the preset conversion efficiency, so as to obtain the change trend of the third conversion efficiency, determine the detection result of the fuel in the fuel tank based on the relation between the change trend and the preset change trend, further avoid misjudgment of sulfur poisoning of the working vehicle and ensure the safety of the working vehicle. Namely, whether the working vehicle uses high-sulfur diesel oil or not and distinguishing urea crystallization from sulfur poisoning are accurately judged through fuel oil filling information, the relation between the second conversion efficiency and preset detection conditions, the relation between the change trend of the third conversion efficiency and the preset change trend, a preset temperature range and fault information of the vehicle-mounted diagnosis system.
For example, if the second conversion efficiency η2 is greater than the preset conversion efficiency C, obtaining a third conversion efficiency of the post-processor in a preset temperature range, in this embodiment, a desulfurization temperature range in the desulfurization process is 280 ℃ to 350 ℃, and in this embodiment, the third conversion efficiency is denoted as η3, so as to obtain a variation trend of the third conversion efficiency η3; if the variation trend of the third conversion efficiency eta 3 is smaller than or equal to the preset variation trend, determining that the detection result of the fuel in the fuel tank is urea crystallization; if the variation trend of the third conversion efficiency eta 3 is larger than the preset variation trend, determining that the detection result of the fuel in the fuel tank is the high-sulfur fuel.
According to the fuel detection method provided by the embodiment, after the fuel is injected into the fuel tank, the first conversion efficiency of the postprocessor and the fault information of the vehicle-mounted diagnosis system are obtained, if the first conversion efficiency meets the preset detection condition and the fault information represents that no fault exists currently, the desulfurization mode is triggered to desulfurize the postprocessor, so that the sulfur content in the postprocessor is timely reduced while the error touch of the desulfurization mode caused by the fault of the vehicle-mounted diagnosis system is avoided; the detection result that the fuel in the fuel tank is urea crystal or high-sulfur fuel is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, so that the accuracy of fuel detection is improved, and the driving and operation safety of the operation vehicle are further improved.
In some optional embodiments, when determining the detection result of the post-processor based on the relationship between the variation trend and the preset variation trend, if the variation trend indicates that the rate of rise of the third conversion efficiency is greater than the preset rate of rise, determining that the detection result of the fuel in the fuel tank is high sulfur fuel, and triggering the high sulfur recording of the post-processor to remind the operation of the working vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, when the rising rate of the third conversion efficiency is larger than the preset rising rate, the detection result of the fuel oil in the fuel tank is determined to be the high-sulfur fuel oil, and the high-sulfur record of the post-processor is triggered, so that the operation reminding is carried out on the operation vehicle, and a basis is provided for the torque limiting and maintenance of the operation vehicle.
In some optional embodiments, triggering the high sulfur recording of the post-processor to perform operation reminding on the operation vehicle may obtain calibration information and a fourth conversion efficiency of the post-processor when the desulfurization mode is triggered, where the calibration information characterizes a conversion time for the conversion efficiency to reach a preset conversion efficiency; determining the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency based on the calibration information; and triggering the high-sulfur recording of the post-processor based on the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency so as to carry out operation reminding on the operation vehicle, wherein the operation reminding comprises high-sulfur reminding or engine torque limiting reminding.
According to the fuel oil detection method provided by the embodiment of the invention, the calibration information and the fourth conversion efficiency of the post processor when the desulfurization mode is triggered are acquired, so that the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is determined based on the calibration information, the high-sulfur record of the post processor is triggered, the accuracy of the high-sulfur record is further improved, and further the high-sulfur prompt or the engine torque limiting prompt is carried out on the triggered working vehicle.
In some alternative embodiments, based on the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency, the high sulfur recording of the post processor is triggered, so that the safe running time can be obtained when the operation vehicle is subjected to operation reminding; comparing the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency with the safe operation time to obtain a time comparison result; if the time comparison result shows that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is smaller than the safe running time, triggering the high-sulfur record of the post-processor so as to carry out engine torque limiting reminding on the working vehicle; and if the time comparison result indicates that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor so as to carry out high-sulfur reminding on the working vehicle. Wherein when the sulfur content of diesel oil used by the working vehicle is presumed to be in a certain sulfur-resistant range, the screen display fuel oil has high sulfur content
For example, the time for the same conversion efficiency to reach the preset conversion efficiency under different temperatures, sulfur contents and fuel consumption can be calibrated, the relationship between the time for calibrating the temperatures, sulfur contents, fuel consumption and conversion efficiency to reach the preset conversion efficiency is fitted through a polynomial, and the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is determined based on the fitted polynomial.
And comparing the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency with the safe operation time, if the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is smaller than the safe operation time, triggering the high-sulfur record of the post-processor to carry out engine torque limiting operation reminding on the working vehicle, for example, displaying prompt information that fuel is high-sulfur fuel in a display screen, and simultaneously prompting an operator that the engine torque is limited after a period of time, and at the moment, the working vehicle is required to be light-weight maintained.
If the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor to carry out high-sulfur reminding on the operation vehicle, for example, displaying a high-sulfur-content elastic frame reminding in the fuel oil on a display screen, and enabling an operator to automatically clear after the elastic frame disappears by clicking an exit key or waiting for 3 seconds.
When the sulfur content of diesel oil used by the working vehicle is presumed to be in a certain sulfur-resistant range, a spring frame prompt with high sulfur content in the fuel oil can be displayed on a display screen.
Fitting the relationship among the calibration temperature, the sulfur content, the fuel consumption and the time of the conversion efficiency reaching the preset conversion efficiency according to the relationship among the polynomial calibration temperature, the sulfur content, the fuel consumption and the time of the conversion efficiency reaching the preset conversion efficiency, predicting the sulfur content of diesel oil used by a customer and the post-treatment service life, and protecting the post-treatment by reminding and torsion limiting modes.
According to the fuel oil detection method provided by the embodiment of the invention, the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is determined based on the calibration information, and the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency is compared with the safe running time, so that the high-sulfur record of the post-processor is triggered when the conversion time is smaller than the safe running time, and further the engine torque limiting reminding is carried out on the operation vehicle, so that the operation personnel are reminded of timely maintaining the operation vehicle; the high-sulfur record of the post processor is triggered when the conversion time of the fourth conversion efficiency reaches the preset conversion efficiency and is larger than or equal to the safe operation time, and the high-sulfur reminding is carried out on the operation vehicle, so that operators are informed that the fuel added into the operation vehicle is high-sulfur fuel, and a large risk exists when the operation vehicle works by adopting the fuel.
In some optional embodiments, when determining the detection result of the post-processor based on the relationship between the variation trend and the preset variation trend, if the variation trend does not satisfy the preset variation trend, if the rising rate of the third conversion efficiency is less than or equal to the preset rising rate, determining that the detection result of the fuel in the fuel tank is urea crystallization; and triggering maintenance reminding of the working vehicle.
For example, if the second conversion efficiency η2 is greater than the preset conversion efficiency C, obtaining a third conversion efficiency η3 of the post-processor within a preset temperature range, for example, a desulfurization temperature range of 280 ℃ to 350 ℃ in a desulfurization process, so as to obtain a variation trend of the third conversion efficiency η3; if the variation trend of the third conversion efficiency eta 3 is smaller than or equal to the preset variation trend, determining that the detection result of the post-processor is urea crystallization, namely, the post-processor is urea crystallization, and triggering maintenance reminding of the working vehicle at the moment.
According to the fuel detection method provided by the embodiment of the invention, when the rising rate of the third conversion efficiency is smaller than or equal to the preset rising rate, the detection result of the fuel in the fuel tank is determined to be urea crystallization, and the maintenance reminding of the operation vehicle is triggered, so that an operator is reminded of timely maintaining the operation vehicle, and larger damage to the operation vehicle is avoided.
In some alternative embodiments, when the detection result of the fuel in the fuel tank is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, if the second conversion efficiency is less than or equal to the preset conversion efficiency, triggering an operation reminding for performing engine torque limiting on the operation vehicle.
For example, if the second conversion efficiency η2 is less than or equal to the preset conversion efficiency C, it indicates that the catalyst is aged and needs to be processed by the service station, at this time, fault information with low second conversion efficiency may be generated, and an engine torque limiting reminder for the working vehicle may be triggered to remind a worker, where after the working vehicle is running for a target time, for example, 36 hours, the engine torque limiting needs to be performed to forcedly repair the working vehicle.
According to the fuel oil detection method provided by the embodiment of the invention, when the second conversion efficiency is smaller than or equal to the preset conversion efficiency, the operation reminding of performing engine torque limiting on the operation vehicle is triggered, so that an operator is reminded that the current sulfur content of the operation vehicle is higher, the safe operation of the transmitter is greatly influenced, and the operation needs to be stopped and maintained as soon as possible.
In some alternative embodiments, the fuel consumption of the fuel in the fuel tank after the post-processor is desulfurized, the running time of the engine and the median of the desulfurization temperature can also be obtained; the sulfur content of the fuel in the fuel tank is determined based on the fuel consumption, the operating time of the engine, and the median of the desulfurization temperatures. Wherein the median of the desulfurization temperature can be determined based on the median temperature after the minimum temperature and the maximum temperature are removed during the desulfurization.
According to the fuel oil detection method provided by the embodiment of the invention, the fuel oil consumption of the fuel oil in the fuel tank after the desulfurization of the post-processor, the running time of the engine and the median of the desulfurization temperature are obtained, and the sulfur content of the fuel oil in the fuel tank is determined based on the fuel oil consumption, the running time of the engine and the median of the desulfurization temperature, so that the accuracy of calculating the sulfur content of the fuel oil in the fuel tank is improved.
The flow of the fuel detection method provided in the embodiment of the present application is described in detail below with a specific example.
Referring to fig. 2, firstly, judging whether a fuel tank of a working vehicle is filled with fuel according to the change of the liquid level of the fuel in the fuel tank, and if the fuel is not filled, the working vehicle normally operates; if the fuel is filled, judging that the first conversion efficiency eta 1 meets a preset detection condition B at intervals, namely eta 1 is less than B, or the conversion efficiency change rate k eta 1 of the post-processor is not in a calibration range, and continuing for a period of time, wherein k eta 1 is the product of the first conversion efficiency of the post-processor at the moment t1 and t1 minus the product of the first conversion efficiency of the fuel in the tank at the moment t2 and t2, and dividing by the time difference between t1 and t2, namely, k eta 1= (eta 1t 1-eta 1t 2)/(t 1-t 2).
If the first conversion efficiency eta 1 is more than or equal to the preset detection condition B, namely the preset detection condition is not met, the working vehicle operates normally. If the first conversion efficiency eta 1 is smaller than the preset detection condition B, judging whether the vehicle-mounted diagnosis system is faulty or not, and if the vehicle-mounted diagnosis system is not faulty, normally operating the working vehicle; and triggering a desulfurization mode to perform after-processor desulfurization if the vehicle-mounted diagnosis system fails.
And acquiring the second conversion efficiency eta 2 of the post-desulfurization processor, and based on the magnitude relation between the second conversion efficiency eta 2 of the post-desulfurization processor and the preset conversion efficiency C.
If the second conversion efficiency eta 2 is larger than the preset conversion efficiency C, namely eta 2 is larger than C, obtaining the third conversion efficiency eta 3 of the post-processor in a preset temperature range, such as a desulfurization temperature range of 280-350 ℃ in the desulfurization process, so as to obtain the variation trend of the third conversion efficiency eta 3.
If the variation trend of the third conversion efficiency eta 3 is smaller than or equal to the preset variation trend, if the rising rate of the third conversion efficiency eta 3 is smaller than or equal to the preset rising rate, determining that the detection result of the fuel in the fuel tank is urea crystallization, and carrying out forced maintenance; if the variation trend of the third conversion efficiency eta 3 is larger than the preset variation trend.
If the rising rate of the third conversion efficiency eta 3 is larger than the preset rising rate, determining that the detection result of the fuel in the fuel tank is high-sulfur fuel, and triggering the high-sulfur record of the post-processor at the moment to remind the operation of the operation vehicle. If the second conversion efficiency η2 is less than or equal to the preset conversion efficiency C, it indicates that the catalyst is aged and needs to be subjected to service station processing, at this time, fault information with low second conversion efficiency may be generated, and an engine torque limiting prompt for the working vehicle is triggered to remind a worker, where the working vehicle needs to be subjected to engine torque limiting after a target operation time, such as 36 hours, so as to perform forced maintenance on the working vehicle. Wherein A is less than B and less than C.
The following describes in detail, with a specific example, the process of triggering the high sulfur recording of the post processor to perform a job alert for the work vehicle provided in the embodiments of the present application.
Referring to fig. 3, calibration information representing a conversion time for which the conversion efficiency reaches a preset conversion efficiency and a fourth conversion efficiency of the post-processor when the desulfurization mode is triggered are first acquired; determining conversion time t for the fourth conversion efficiency to reach preset conversion efficiency based on the calibration information; acquiring safe running time; and comparing the conversion time t of the fourth conversion efficiency reaching the preset conversion efficiency with the safe running time to obtain a time comparison result.
If the time comparison result indicates that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is smaller than the safe running time, triggering the high-sulfur record of the post-processor to carry out engine torque limiting reminding on the working vehicle, for example, displaying prompt information that fuel is high-sulfur fuel in a display screen, and prompting the working personnel that the engine is required to be limited to be twisted after a period of time, and at the moment, light maintenance on the working vehicle is required.
If the time comparison result indicates that the conversion time of the fourth conversion efficiency reaches the preset conversion efficiency and is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor to carry out high-sulfur reminding on the operation vehicle, for example, displaying a high-sulfur-content bullet frame reminding on a display screen, and enabling an operator to automatically clear after the bullet frame disappears by clicking an exit key or waiting for 3 seconds.
In this embodiment, a fuel detecting device is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and will not be described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the means described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
The present embodiment provides a fuel detection device, as shown in fig. 4, including:
the information acquisition module 401 is configured to acquire first conversion efficiency of the post-processor and fault information of the on-board diagnostic system after detecting that the fuel is injected into the fuel tank.
The fuel desulfurization module 402 is configured to trigger a desulfurization mode to desulfurize the post-processor if the first conversion efficiency satisfies a preset detection condition and the fault information indicates that there is no fault currently.
An efficiency obtaining module 403, configured to obtain a second conversion efficiency of the post-desulfurization processor.
The result determining module 404 is configured to determine a detection result of the fuel in the fuel tank based on a magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency.
In some alternative embodiments, the result determination module 404 includes:
and the change trend determining unit is used for acquiring the third conversion efficiency of the post-processor in the preset temperature range if the second conversion efficiency is greater than the preset conversion efficiency so as to acquire the change trend of the third conversion efficiency.
And the detection result determining unit is used for determining the detection result of the fuel in the fuel tank based on the relation between the change trend and the preset change trend, wherein the detection result comprises urea crystals or high-sulfur fuel.
In some optional embodiments, the detection result determining unit includes:
and the first detection result determining unit is used for determining that the detection result of the fuel in the fuel tank is high-sulfur fuel if the change trend meets the preset change trend, and the preset change trend represents that the rising rate of the third conversion efficiency is larger than the preset rising rate.
The first operation reminding triggering unit is used for triggering the high-sulfur record of the post-processor so as to carry out operation reminding on the operation vehicle.
In some optional embodiments, the detection result determining unit includes:
the information acquisition subunit is used for acquiring calibration information and fourth conversion efficiency of the post-processor when the desulfurization mode is triggered, wherein the calibration information characterizes conversion time for the conversion efficiency to reach preset conversion efficiency.
And the time determining subunit is used for determining the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency based on the calibration information.
And the operation reminding subunit is used for triggering the high-sulfur record of the post-processor based on the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency so as to carry out operation reminding on the operation vehicle, wherein the operation reminding comprises high-sulfur reminding or engine torque limiting reminding.
In some optional embodiments, the job reminder subunit is specifically configured to obtain a safe running time; comparing the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency with the safe operation time to obtain a time comparison result; if the time comparison result shows that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is smaller than the safe running time, triggering the high-sulfur record of the post-processor so as to carry out engine torque limiting reminding on the working vehicle; and if the time comparison result indicates that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor so as to carry out high-sulfur reminding on the working vehicle.
In some optional embodiments, the detection result determining unit includes:
And the second detection result determining unit is used for determining that the detection result of the fuel in the fuel tank is urea crystallization if the change trend does not meet the preset change trend, and the rising rate of the third conversion efficiency represented by the preset change trend is smaller than or equal to the preset rising rate.
And the second operation reminding triggering unit is used for triggering maintenance reminding of the operation vehicle.
In some optional embodiments, the trend determining unit is further configured to trigger an engine torque limiting reminder for the working vehicle if the second conversion efficiency is less than or equal to the preset conversion efficiency.
In some alternative embodiments, the fuel desulfurization module is further configured to obtain a median of fuel consumption, an operation time of the engine, and a desulfurization temperature of the fuel in the fuel tank after desulfurization of the post-processor; the sulfur content of the fuel in the fuel tank is determined based on the fuel consumption, the operating time of the engine, and the median of the desulfurization temperatures.
According to the fuel detection device provided by the embodiment, after the fuel is injected into the fuel tank, the first conversion efficiency of the postprocessor and the fault information of the vehicle-mounted diagnosis system are obtained, if the first conversion efficiency meets the preset detection condition and the fault information represents that no fault exists currently, the desulfurization mode is triggered to desulfurize the postprocessor, so that the sulfur content in the postprocessor is timely reduced while the error touch of the desulfurization mode caused by the fault of the vehicle-mounted diagnosis system is avoided; the detection result that the fuel in the fuel tank is urea crystal or high-sulfur fuel is determined based on the magnitude relation between the second conversion efficiency of the post-desulfurization processor and the preset conversion efficiency, so that the accuracy of fuel detection is improved, and the driving and operation safety of the operation vehicle are further improved.
Further functional descriptions of the above respective modules and units are the same as those of the above corresponding embodiments, and are not repeated here.
The fuel detection device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (application specific integrated circuit) circuit, a processor and a memory that execute one or more software or firmware programs, and/or other devices that can provide the above-described functions.
Fig. 5 shows a schematic structural diagram of an embodiment of the vehicle of the present invention, and the specific embodiment of the present invention is not limited to the specific implementation of the vehicle.
As shown in fig. 5, the vehicle may include: a processor 502, a communication interface (Communications Interface) 504, a memory 506, and a communication bus 508.
Wherein: processor 502, communication interface 504, and memory 506 communicate with each other via communication bus 508. A communication interface 504 for communicating with network elements of other devices, such as clients or other servers. The processor 502 is configured to execute the program 510, and may specifically perform the relevant steps described above for the fuel detection method embodiment.
In particular, program 510 may include program code comprising computer-executable instructions.
The processor 502 may be a central processing unit CPU, or a specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention. The one or more processors comprised by the vehicle may be of the same type of processor, such as one or more CPUs; but may also be different types of processors such as one or more CPUs and one or more ASICs.
A memory 506 for storing a program 510. Memory 506 may comprise high-speed RAM memory or may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The embodiments of the present invention also provide a computer readable storage medium, and the method according to the embodiments of the present invention described above may be implemented in hardware, firmware, or as a computer code which may be recorded on a storage medium, or as original stored in a remote storage medium or a non-transitory machine readable storage medium downloaded through a network and to be stored in a local storage medium, so that the method described herein may be stored on such software process on a storage medium using a general purpose computer, a special purpose processor, or programmable or special purpose hardware. The storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, a solid state disk or the like; further, the storage medium may also comprise a combination of memories of the kind described above. It will be appreciated that a computer, processor, microprocessor controller or programmable hardware includes a storage element that can store or receive software or computer code that, when accessed and executed by the computer, processor or hardware, implements the methods illustrated by the above embodiments.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. A fuel detection method for a work vehicle, the method comprising:
after fuel injection into the fuel tank is detected, acquiring first conversion efficiency of a post-processor and fault information of a vehicle-mounted diagnosis system;
if the first conversion efficiency meets a preset detection condition and the fault information indicates that no fault exists currently, triggering a desulfurization mode to desulfurize the postprocessor;
obtaining a second conversion efficiency of the post-processor after desulfurization;
and determining a detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the after-treatment device after desulfurization and the preset conversion efficiency.
2. The method of claim 1, wherein determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-processor after desulfurization and the preset conversion efficiency comprises:
if the second conversion efficiency is greater than the preset conversion efficiency, acquiring a third conversion efficiency of the postprocessor in a preset temperature range so as to obtain a variation trend of the third conversion efficiency;
And determining a detection result of the fuel in the fuel tank based on the relation between the change trend and the preset change trend, wherein the detection result comprises urea crystals or high-sulfur fuel.
3. The method according to claim 2, wherein the determining the detection result of the fuel in the fuel tank based on the relationship between the variation trend and the preset variation trend includes:
if the change trend meets the preset change trend, determining that the detection result of the fuel in the fuel tank is the high-sulfur fuel, wherein the preset change trend represents that the rising rate of the third conversion efficiency is larger than a preset rising rate;
and triggering the high-sulfur record of the post-processor to carry out operation reminding on the operation vehicle.
4. The method of claim 3, wherein the triggering the high sulfur recording of the post processor to job alert the work vehicle comprises:
obtaining calibration information and fourth conversion efficiency of the post-processor when a desulfurization mode is triggered, wherein the calibration information represents conversion time when the conversion efficiency reaches preset conversion efficiency;
determining the conversion time of the fourth conversion efficiency reaching a preset conversion efficiency based on the calibration information;
And triggering the high-sulfur record of the post-processor based on the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency so as to carry out operation reminding on the operation vehicle, wherein the operation reminding comprises high-sulfur reminding or engine torque limiting reminding.
5. The method of claim 4, wherein triggering the high sulfur recording of the post processor to job alert the work vehicle based on the conversion time for the fourth conversion efficiency to reach a preset conversion efficiency comprises:
acquiring safe running time;
comparing the conversion time of the fourth conversion efficiency reaching the preset conversion efficiency with the safe operation time to obtain a time comparison result;
if the time comparison result shows that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is smaller than the safe running time, triggering the high-sulfur record of the post-processor to carry out engine torque limiting reminding on the working vehicle;
and if the time comparison result indicates that the conversion time for the fourth conversion efficiency to reach the preset conversion efficiency is greater than or equal to the safe running time, triggering the high-sulfur record of the post-processor so as to carry out high-sulfur reminding on the working vehicle.
6. The method according to claim 2, wherein the determining the detection result of the fuel in the fuel tank based on the relationship between the variation trend and the preset variation trend includes:
if the change trend does not meet the preset change trend, determining that the detection result of the fuel in the fuel tank is the urea crystallization, wherein the preset change trend represents that the rising rate of the third conversion efficiency is smaller than or equal to a preset rising rate;
and triggering maintenance reminding of the working vehicle.
7. The method of claim 1, wherein determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the post-processor after desulfurization and the preset conversion efficiency comprises:
and if the second conversion efficiency is smaller than or equal to the preset conversion efficiency, triggering an engine torque limiting reminding of the working vehicle.
8. The method according to claim 1, wherein the method further comprises:
acquiring fuel consumption of fuel in the fuel tank, running time of an engine and median of desulfurization temperature after desulfurization of the postprocessor;
and determining the sulfur content of the fuel in the fuel tank based on the fuel consumption, the running time of the engine and the median of the desulfurization temperature.
9. A fuel detection device for use with a work vehicle, the device comprising:
the information acquisition module is used for acquiring the first conversion efficiency of the post-processor and fault information of the vehicle-mounted diagnosis system after detecting that the fuel is injected into the fuel tank;
the fuel oil desulfurization module is used for triggering a desulfurization mode to desulfurize the postprocessor if the first conversion efficiency meets a preset detection condition and the fault information indicates that no fault exists currently;
the efficiency acquisition module is used for acquiring the second conversion efficiency of the post-processor after desulfurization;
and the result determining module is used for determining the detection result of the fuel in the fuel tank based on the magnitude relation between the second conversion efficiency of the after-treatment device after desulfurization and the preset conversion efficiency.
10. A vehicle, characterized by comprising: the device comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete communication with each other through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the operations of the fuel detection method according to any one of claims 1-8.
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