Fuel tank assembly, control method of vehicle, control device and vehicle

Abstract

The present invention relates to the technical field of vehicles, and particularly relates to a fuel tank assembly, a control method for a vehicle, a control device and a vehicle. Among them, the fuel tank assembly includes a fuel tank body and a plurality of liquid level detection components. The plurality of liquid level detection components are all arranged inside the fuel tank body, and the plurality of liquid level detection components are arranged at intervals along the circumferential direction of the fuel tank body. For the fuel tank assembly proposed by the present invention, by arranging a plurality of liquid level detection components inside the fuel tank body and arranging the plurality of liquid level detection components at intervals along the circumferential direction of the fuel tank body, the positions for liquid level detection can be increased, and when the vehicle is driving under working conditions such as on a slope, during a slope rush, and in an S-shaped sharp turn, the actual liquid level inside the fuel tank body can be better judged, and the situation of short-term suction void error reporting and warning light illumination can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a fuel tank assembly, a control method for a vehicle, a control device and a vehicle. Background Art

[0002] What is provided in this section is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] A fuel tank assembly generally includes a fuel tank body and a liquid level detection component disposed in the fuel tank body. The liquid level of the fuel tank body is detected by the liquid level detection component. However, when the vehicle is driving under bumpy conditions such as on a slope, during a hill climb, or on an S-shaped sharp turn, there will be a situation where a short-term suction void error occurs and the warning light turns on. Summary of the Invention

[0004] The object of the present invention is to at least solve the problem that when the vehicle is driving under bumpy conditions such as on a slope, during a hill climb, or on an S-shaped sharp turn, there will be a situation where a short-term suction void error occurs and the warning light turns on. This object is achieved by the following technical solutions:

[0005] A first aspect of the present invention provides a fuel tank assembly, the fuel tank assembly comprising:

[0006] A fuel tank body; and

[0007] A plurality of liquid level detection components, the plurality of liquid level detection components are all disposed in the fuel tank body; and the plurality of liquid level detection components are arranged at intervals along the circumferential direction of the fuel tank body.

[0008] For the fuel tank assembly provided by the present invention, by arranging a plurality of liquid level detection components in the fuel tank body and arranging the plurality of liquid level detection components at intervals along the circumferential direction of the fuel tank body, the positions of liquid level detection can be increased, and when the vehicle is driving under conditions such as on a slope, during a hill climb, or on an S-shaped sharp turn, the actual liquid level in the fuel tank body can be better judged, and the situation of short-term suction void error and warning light turning on can be reduced.

[0009] In addition, for the fuel tank assembly according to the present invention, the following additional technical features may also be provided:

[0010] In some embodiments of the present invention, the fuel tank body is in a rectangular shape, and the circumferential direction of the rectangular shape includes four side walls; the plurality of liquid level detection components include a first liquid level detection component, a second liquid level detection component, and a third liquid level detection component, and the first liquid level detection component, the second liquid level detection component, and the third liquid level detection component are respectively disposed close to the inner surfaces of three of the side walls of the rectangular shape.

[0011] In some embodiments of the present invention, the plurality of liquid level detection components further include a fourth liquid level detection component, and the fourth liquid level detection component is disposed close to the inner surface of the fourth side wall of the rectangular body.

[0012] In some embodiments of the present invention, the first liquid level detection component, the second liquid level detection component, the third liquid level detection component, and the fourth liquid level detection component are respectively disposed on the inner surfaces of the four side walls of the rectangular body.

[0013] In some embodiments of the present invention, the heights of the second liquid level detection component, the third liquid level detection component, and the fourth liquid level detection component are all less than the height of the first liquid level detection component.

[0014] A second aspect of the present invention provides a control method for a vehicle, which is implemented according to the fuel tank assembly described in the above embodiments. The control method includes:

[0015] Obtain all the measurement results of the plurality of liquid level detection components;

[0016] Calculate the actual liquid level value according to one of the all measurement results that is not greater than a first preset value;

[0017] Send out a low fuel warning according to the actual liquid level value being less than the first preset value.

[0018] In the control method for a vehicle of the present invention, by obtaining all the measurement results of the plurality of liquid level detection components, calculating the actual liquid level value according to one of the all measurement results that is not greater than a first preset value, and sending out a low fuel warning according to the actual liquid level value being less than the first preset value, the vehicle is controlled, reducing the situation of short-time suction void error reporting and warning light illumination.

[0019] In addition, according to the control method for a vehicle of the present invention, the following additional technical features may also be provided:

[0020] In some embodiments of the present invention, the control method further includes:

[0021] Control the vehicle to continue normal driving according to the actual liquid level value being greater than or equal to the first preset value;

[0022] Calculate a first duration for the actual liquid level value to reach the first preset value according to the fuel consumption per unit time;

[0023] Send out a low fuel warning according to the first duration being less than the first limited duration.

[0024] In some embodiments of the present invention, the control method further includes:

[0025] If the first duration is greater than or equal to the first limited duration, control the vehicle to continue normal driving.

[0026] A third aspect of the present invention provides a control device for a vehicle, which is used to execute the vehicle control method described in the above embodiments. The control device includes:

[0027] An acquisition unit, configured to acquire all measurement results of a plurality of liquid level detection components;

[0028] A calculation unit, configured to calculate an actual liquid level value according to that one of the all measurement results is not greater than a first preset value;

[0029] A warning unit, configured to give an out-of-fuel prompt according to that the actual liquid level value is less than the first preset value.

[0030] A fourth aspect of the present invention provides a vehicle, including:

[0031] A fuel tank assembly, where the fuel tank assembly includes a liquid level detection component;

[0032] A control device, where the control device is electrically connected to the liquid level detection component.

[0033] The vehicle provided in the fourth aspect of the present invention and the control device and fuel tank assembly of the vehicle provided in the third aspect of the present invention have the same beneficial effects, which will not be elaborated here. Description of the Drawings

[0034] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components.

[0035] In the drawings:

[0036] Figure 1 is a schematic structural diagram of the fuel tank assembly of the present invention;

[0037] Figure 2 is a flowchart of the vehicle control method of the present invention;

[0038] Figure 3 is a complete flowchart of the vehicle control method of the present invention;

[0039] Figure 4 is a structural block diagram of the control device of the present invention.

[0040] 100. Fuel tank assembly;

[0041] 10. Fuel tank body; 11. First side wall; 12. Second side wall; 13. Third side wall; 14. Fourth side wall;

[0042] 20. First liquid level detection component;

[0043] 30. Second liquid level detection component;

[0044] 40. Third liquid level detection component;

[0045] 50. Fourth liquid level detection component;

[0046] 60. Control device; 61. Acquisition unit; 62. Calculation unit; 63. Warning unit. Detailed implementation mode

[0047] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0048] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0049] Although the terms first, second, third, etc. may be used in this document to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first" and "second" and other numerical terms used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0050] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure is flipped, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "over" other elements or features. Thus, the exemplary term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0051] In a first aspect of an embodiment of the present invention, a fuel tank assembly 100 is provided, as Figure 1 shown, wherein, Figure 1 is a schematic structural view of the fuel tank assembly 100 of the present invention. The fuel tank assembly 100 includes a fuel tank body 10 and a plurality of liquid level detection components. The plurality of liquid level detection components are all arranged inside the fuel tank body 10 and are spaced apart along the circumferential direction of the fuel tank body 10. The plurality of liquid level detection components include a first liquid level detection component 20 and a second liquid level detection component 30. The first liquid level detection component 20 is arranged inside the fuel tank body 10, the second liquid level detection component 30 is arranged inside the fuel tank body 10, and the second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged inside the fuel tank body 10 and are spaced apart along the circumferential direction of the fuel tank body 10.

[0052] In the fuel tank assembly 100 proposed by the present invention, a plurality of liquid level detection components are arranged inside the fuel tank body 10 and are spaced apart, so that the positions of liquid level detection can be increased. When the vehicle is running under conditions such as on a slope, during a hill climb, and in an S-shaped sharp turn, the actual liquid level inside the fuel tank body 10 can be better judged, and the situation of short-term suction void error reporting and warning light illumination can be reduced.

[0053] It should be noted that in this application, a more preferred technical solution is to define the relative positions between the first liquid level detection component 20 and the second liquid level detection component 30. The second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged close to the inner surfaces of two opposite side walls of the fuel tank body 10, which can better reflect the different liquid levels in the fuel tank body 10 caused by road conditions. When the fuel tank body 10 is a rectangular groove structure, the two opposite side walls of the fuel tank body 10 are the two opposite ends of the rectangular groove. Similarly, when the fuel tank body 10 is a cylindrical groove, the two opposite side walls of the fuel tank body 10 are the two ends of the cylindrical groove along the diameter direction; when the fuel tank body is a triangular groove, the first liquid level detection component 20 and the second liquid level detection component 30 are respectively arranged close to the inner surfaces of the two side edges in the triangular groove.

[0054] In this application, it is only necessary to respectively arrange the second liquid level detection component 30 and the first liquid level detection component 20 at two opposite positions in the fuel tank body 10, so as to reduce the situation where the distance between the second liquid level detection component 30 and the first liquid level detection component 20 is too close, resulting in relatively close detected liquid level values.

[0055] In addition, when the vehicle is in a bumpy working condition, the liquid level fluctuates severely. Here, the second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged at two opposite positions in the fuel tank body 10, which can better measure the liquid level of the fuel tank body 10 and facilitate the calculation of the actual liquid level.

[0056] In addition, the statement that the second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged close to two opposite side walls of the fuel tank body 10 has two meanings. One situation is that the second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged on the inner surfaces of two opposite side walls of the fuel tank body 10, and the other is that the second liquid level detection component 30 and the first liquid level detection component 20 are respectively arranged close to the inner surfaces of two opposite side walls of the fuel tank body 10.

[0057] The above is the situation of two liquid level detection components. In the actual operation process, more liquid level detection components can be set, so as to detect the liquid level at more positions, and thus the actual liquid level in the fuel tank body 10 can be conveniently determined.

[0058] Next, it will continue to be combined with Figure 1 to elaborate in detail on the structure of the fuel tank assembly 100.

[0059] Optionally, the fuel tank body 10 is in a rectangular shape; the fuel tank assembly 100 further includes a third liquid level detection component 40 disposed inside the fuel tank body 10, and the first liquid level detection component 20, the second liquid level detection component 30, and the third liquid level detection component 40 are respectively disposed close to the inner surfaces of three side walls of the rectangular body.

[0060] For the convenience of description here, the four side walls of the fuel tank body 10 are respectively defined as a first side wall 11, a second side wall 12, a third side wall 13, and a fourth side wall 14. The first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14 enclose a rectangular cylindrical structure. Among them, the first liquid level detection component 20 is disposed close to or against the inner surface of the first side wall 11, the second liquid level detection component 30 is disposed close to or against the inner surface of the second side wall 12, and the third liquid level detection component 40 is disposed close to or against the inner surface of the third side wall 13, so that the liquid levels at three positions can be detected.

[0061] It should be noted that the first liquid level detection component 20 here is the main electronic dipstick. On the one hand, it can measure the fuel filling amount. At this time, the fuel tank assembly 100 is usually placed on a horizontal ground. On the other hand, it can also be used for calculating the actual liquid level when the fuel tank body 10 is tilted.

[0062] The electronic dipstick here can realize the detection of the liquid level. The user can know the fuel consumption situation in the cab, which can remind the user to add gasoline, etc., and is convenient for the user to use.

[0063] The outer ring of the electronic dipstick here is sequentially sleeved with a sleeve for protecting the electronic dipstick and a protective cover for damping the sleeve. The electronic dipstick is installed inside the fuel tank body 10. During the vehicle's travel, the vibration of the fuel tank body 10 is transmitted to the electronic dipstick. By setting the sleeve to install the electronic dipstick and setting the protective cover outside the sleeve, the electronic dipstick is protected, improving the ability of the electronic dipstick to withstand bumpy working conditions and the reliability of the detection work.

[0064] In this embodiment, one of the first liquid level detection component 20, the second liquid level detection component 30, and the third liquid level detection component 40 can also be disposed close to the inner surface of the fourth side wall 14. That is to say, the first liquid level detection component 20, the second liquid level detection component 30, and the third liquid level detection component 40 only need to be close to three of the four side walls respectively, so as to detect the liquid levels at three positions inside the fuel tank body 10, thereby facilitating the calculation of the actual liquid level value inside the fuel tank body 10.

[0065] Optionally, the fuel tank assembly 100 further includes a fourth liquid level detection component 50, which is disposed close to the inner surface of the fourth side wall of the rectangular body. Here, the fourth liquid level detection component 50 is disposed close to the inner surface of the fourth side wall 14 of the rectangular body, so that the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 can perform liquid level detection on four positions inside the fuel tank body 10, and thus the actual liquid level can be calculated according to the four detection results.

[0066] Optionally, the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are respectively disposed on the inner surfaces of the four side walls of the rectangular body. Here, the four side walls can respectively achieve the installation of the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50, and the fixing effect can be achieved without other installation components.

[0067] As a preferred method, the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 can be respectively disposed at the central positions of the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14 in the width direction. That is to say, the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are respectively disposed on the axes of the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14 in the width direction, so that the actual liquid level value can be conveniently calculated according to the four actual detection results.

[0068] Optionally, the heights of the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are all less than the height of the first liquid level detection component 20. Here, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are additional electronic dipsticks, mainly for measuring low liquid level values to avoid alarms, and their heights only need to be lower than the height of the first liquid level detection component 20.

[0069] It should be noted that the heights of the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 all need to be higher than the minimum value of the liquid level when the fuel tank assembly 100 is in the maximum tilt state, so that the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 can all measure the oil level when the vehicle is in a bumpy state.

[0070] It should be noted that the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are all arranged along the height direction of the fuel tank body 10, and the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are respectively fixed on the inner surfaces of the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14, and can be fixed by a snap connection method or other methods, so as to accurately read the marked value and conveniently calculate the actual liquid level in the fuel tank body 10.

[0071] The liquid level detection components in the present invention can be set to more, for example, in addition to the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50, the fuel tank assembly 100 further includes a fifth liquid level detection component (not shown). At this time, the fuel tank body 10 can be set as a pentagonal groove, a rectangular groove, or the like.

[0072] The second aspect of the embodiment of the present invention provides a control method for a vehicle, such as Figure 2 shown Figure 2 is a flowchart of the control method for the vehicle of the present invention. The control method includes:

[0073] S21. Obtain all measurement results of a plurality of liquid level detection components;

[0074] S22. Calculate the actual liquid level value according to that one of the multiple all results is not greater than the first preset value;

[0075] S23. Send an out-of-fuel prompt according to that the actual liquid level value is less than the first preset value.

[0076] In the control method for the vehicle of the present invention, by obtaining all measurement results of a plurality of liquid level detection components, calculating the actual liquid level value according to that one of the all measurement results is not greater than the first preset value, and sending an out-of-fuel prompt according to that the actual liquid level value is less than the first preset value, the vehicle is controlled, reducing the situation of short-time suction void error reporting and lighting up the warning light.

[0077] The following is a specific description with the four liquid level detection components mentioned above.

[0078] In S21, the measurement results of the four detection components of the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 are H1, H2, H3, and H4 respectively;

[0079] In S22, the actual liquid level value is calculated by using a calibration method. Specifically, the liquid level of the electronic dipstick can be measured when the fuel tank assembly 100 is in various inclined states, and the actual liquid level measurement is calibrated to determine the actual liquid level value H, where H is a function of H1, H2, H3, and H4, and can be expressed as H = f(H1, H2, H3, H4).

[0080] In S23, if the calculated actual liquid level value is less than the first preset value, it indicates that the fuel is insufficient, and an out-of-fuel prompt is issued to remind the user to refuel the vehicle.

[0081] When these measurement results are all greater than or equal to the first preset value, the vehicle travels normally.

[0082] Optionally, the control method further includes:

[0083] According to the actual liquid level value being greater than or equal to the first preset value, controlling the vehicle to continue to travel normally;

[0084] At this time, when the actual liquid level value is greater than or equal to the first preset value, the vehicle can be controlled to continue to travel normally.

[0085] Calculate the first duration for the actual liquid level value to reach the first preset value according to the fuel consumption per unit time;

[0086] Here, the duration required for the actual liquid level value to reach the first preset value calculated according to the fuel consumption per unit time at present is the first duration. The fuel consumption per unit time can also be determined according to the subsequent road conditions to determine the first duration, which can have better pertinence and the first duration can be more accurate.

[0087] According to the first duration being less than the first limited duration, an out-of-fuel prompt is issued. The first limited duration here is a calibrated value and can be determined according to the actual road conditions to avoid the situation of delayed alarm due to excessive fuel consumption when the vehicle is under heavy load and long-time climbing.

[0088] Optionally, the control method further includes controlling the vehicle to continue to travel normally according to the first duration being greater than or equal to the first limited duration.

[0089] Next, in combination with Figure 3 in the flowchart, where Figure 3 is the complete flowchart of the control method of the vehicle of the present invention. A detailed and complete description of the control method of the vehicle will be given. The control method of the vehicle specifically includes the following steps.

[0090] S31. Control the vehicle to travel normally;

[0091] This refers to the driving of the vehicle under working conditions such as on slopes, uphill rushes, and sharp S-turns, and also includes the situation of the vehicle driving on flat roads.

[0092] S32. Obtain the detection results H1, H2, H3, and H4;

[0093] Here, H1, H2, H3, and H4 are obtained through the first liquid level detection component 20, the second liquid level detection component 30, the third liquid level detection component 40, and the fourth liquid level detection component 50 respectively.

[0094] S33. Determine whether H1, H2, H3, and H4 are all greater than H;

[0095] Among them, here is a judgment on the four liquid levels simultaneously. When this condition is met, it indicates that the liquid level in the fuel tank body 10 is relatively high and can meet the requirements for the normal driving of the vehicle. Enter S34 to enable the vehicle to continue driving normally.

[0096] S34. Continue to control the vehicle to drive normally;

[0097] When one of the values of H1, H2, H3, and H4 is less than or equal to H, this includes multiple situations. The first situation is that one of the values of H1, H2, H3, and H4 is less than or equal to H. The second situation is that two of the values of H1, H2, H3, and H4 are less than or equal to H. The third situation is that three of the values of H1, H2, H3, and H4 are less than or equal to H. The fourth situation is that all of H1, H2, H3, and H4 are less than or equal to H. No matter which situation it is, at this time, the vehicle may be in a fuel slinging condition or the actual liquid level is lower than the first preset value, and it is necessary to confirm the actual liquid level to prevent false alarms caused by the fuel slinging condition of the vehicle. To prevent false alarms, the control method enters S35.

[0098] S35. Calculate to obtain H = f(H1, H2, H3, H4);

[0099] Here, H is the actual liquid level value. The actual liquid level value H is a functional relationship of H1, H2, H3, and H4, which can be determined after calibration according to needs. The formula here can be the result determined by combining theory and practice, and can be obtained after calibration during the vehicle test process. Calibration is carried out through comparison tests of the measured oil level and the actual oil level to make the formula calculation more accurate.

[0100] When three parameters are used to determine the actual liquid level value H in the present invention, such as using H = f(H1, H2, H3), or using H = f(H1, H2, H4), or using H = f(H2, H3, H4), etc., a similar method can be used for determination, and details will not be elaborated here.

[0101] Here, H can be specifically calculated using formulas such as H = 0.5*H1 + 0.2*H2 + 0.1*H3 + 0.3*H4, etc. Of course, other calibration methods can also be used for confirmation.

[0102] S36. Determine whether H is greater than or equal to the first preset value;

[0103] The first preset value here is the fuel level alarm value. Multiple factors such as the fuel storage capacity of the vehicle's fuel tank assembly 100 and the distribution distance of gas stations need to be considered. When the fuel quantity in the fuel tank body 10 is less than a certain specified value, an alarm is immediately issued to alert the driver to pay attention to refueling. Currently, it follows the effective volume of the fuel tank body 10 with an oil alarm value of 0.125.

[0104] When H is greater than or equal to the first preset value, it indicates that the fuel quantity in the fuel tank body 10 is sufficient at this time, and no warning is required, then enter S38; on the contrary, when H is less than the first preset value, it indicates that the fuel quantity in the fuel tank body 10 is insufficient, and then enter S37.

[0105] The first preset value here can adopt the fuel limit alarm value, or other specified values, which can be determined by the user according to the road conditions traveled and the density of gas stations set along the way, etc.

[0106] S37. Issue a low fuel warning;

[0107] After the low fuel warning is issued, the driver can see the warning message, thus reminding the driver to perform the refueling operation. When the vehicle issues a low fuel warning, it will enter S44 to control the end of the vehicle's driving. It should be noted that after the low fuel warning is issued, the vehicle can still drive normally for a certain distance, so as to facilitate the driver to drive the vehicle to the location of the gas station and prevent the vehicle from breaking down halfway.

[0108] S38. Do not alarm and control the vehicle to drive normally;

[0109] In this case, it indicates that the fuel quantity in the fuel tank body 10 is relatively large and no warning is required, and the vehicle can continue to drive for a period of time. However, considering that the fuel surplus is small, therefore, the driving duration of the vehicle can be judged and enter S39.

[0110] S39. Calculate the first duration t to reach the first preset value based on the current fuel consumption;

[0111] The first duration t here is determined by the difference between the actual fuel quantity and the warning fuel quantity and the current fuel consumption per unit time, and can predict the duration for which the vehicle can drive normally.

[0112] S40. Determine whether the first duration t is less than the first limited duration;

[0113] The first limited duration here is a calibrated value, which is designed according to the actual situation to avoid alarm delay due to excessive fuel consumption during long-term climbing under heavy load. When it is the case, it enters S41; when it is not the case, it enters S38, without alarming and controlling the vehicle to drive normally.

[0114] S41. Control the vehicle to end driving.

[0115] In the prior art, when the vehicle is driving on a plain or ordinary road, the recommended value, i.e., 1 / 8 of the effective fuel volume, can be set to meet general requirements. However, when the vehicle is running on winding mountain roads or S-shaped roads in mountainous, hilly and other terrains, the problem of unilateral fuel sloshing and air suction is likely to occur. In the prior art, the sloshing phenomenon is usually mitigated by designing a baffle plate and setting raised structures on the inner surface of the fuel tank body 10. However, during the actual operation of the vehicle, especially in mountainous and hilly areas, short-term air suction failures (the low oil level has not reached the basic alarm value of the fuel level) frequently occur, and the alarm light frequently lights up for warning. After the failure is reported, the torque will be limited to restrict driving.

[0116] Through the vehicle control method of the present invention, the actual liquid level value can be accurately confirmed, the frequency of false alarms of air suction and the frequency of torque limitation due to warning light illumination can be reduced, and the driving experience can be improved.

[0117] In the third aspect of the embodiment of the present invention, a vehicle control device 60 is provided, as Figure 4 shown Figure 4 is the structural block diagram of the control device 60 of the present invention. The control device 60 is used to execute the vehicle control method mentioned above. The control device 60 includes:

[0118] An acquisition unit 61, configured to acquire all measurement results of a plurality of liquid level detection components;

[0119] A calculation unit 62, configured to calculate the actual liquid level value according to that one of all the measurement results is not greater than a first preset value;

[0120] A warning unit 63, configured to give an oil shortage prompt according to that the actual liquid level value is less than the first preset value.

[0121] Among them, the control device 60 can control the process in the method, and the description will not be repeated here.

[0122] It can be understood that the control device 60 here may further include a plurality of judgment units, such as three judgment units, each judgment unit is respectively used to judge whether H1, H2, H3, and H4 are all greater than H, and judge whether H is greater than or equal to the first preset value, and judge whether the first duration t is less than the first limited duration, etc.

[0123] The control device 60 here further includes an arithmetic unit, which is used to calculate the first duration t to reach the first preset value based on the current fuel consumption.

[0124] Of course, the control device 60 here further includes a control unit for controlling the state of the vehicle, including controlling the normal driving of the vehicle or controlling the end of the vehicle driving, etc.

[0125] In the fourth aspect of the embodiment of the present invention, a vehicle is provided, which includes a fuel tank assembly 100 and a control device 60. The fuel tank assembly 100 includes a liquid level detection component, and the control device 60 is electrically connected to the liquid level detection component. The number of the liquid level detection components here is multiple, and the liquid level in the fuel tank body 10 can be measured.

[0126] As mentioned above, only the preferred specific embodiments of the present invention are described, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A control method for a vehicle, characterized in that, It is implemented by using a fuel tank assembly, the fuel tank assembly including a fuel tank body and a plurality of liquid level detection components, the plurality of liquid level detection components being disposed within the fuel tank body, and the plurality of liquid level detection components being spaced apart along the circumferential direction of the fuel tank body; the fuel tank body is in the shape of a rectangular body, and the circumferential direction of the rectangular body includes four side walls; the plurality of liquid level detection components include a first liquid level detection component, a second liquid level detection component, a third liquid level detection component, and a fourth liquid level detection component, and the first liquid level detection component, the second liquid level detection component, and the third liquid level detection component are respectively disposed close to the inner surfaces of three of the side walls of the rectangular body, and the fourth liquid level detection component is disposed close to the inner surface of the fourth side wall of the rectangular body; the heights of the second liquid level detection component, the third liquid level detection component, and the fourth liquid level detection component are all less than the height of the first liquid level detection component; The control method includes: Obtaining all measurement results of a plurality of liquid level detection components; Calculating an actual liquid level value according to one of the all measurement results that is not greater than a first preset value, the actual liquid level value being a functional relationship of H1, H2, H3, and H4, which is determined after calibration as required, where H1, H2, H3, and H4 are respectively obtained through the first liquid level detection component, the second liquid level detection component, the third liquid level detection component, and the fourth liquid level detection component; Issuing an oil shortage prompt according to the actual liquid level value being less than the first preset value; Controlling the vehicle to continue normal driving according to the actual liquid level value being greater than or equal to the first preset value; Calculating a first duration for the actual liquid level value to reach the first preset value according to the fuel consumption per unit time; Issuing an oil shortage prompt according to the first duration being less than a first limited duration.

2. The control method of a vehicle according to claim 1, wherein The control method further includes: Controlling the vehicle to continue normal driving according to the first duration being greater than or equal to the first limited duration.

3. A control device for a vehicle, configured to execute the vehicle control method according to claim 1 or 2, characterized in that, The control device includes: An acquisition unit for obtaining all measurement results of a plurality of liquid level detection components; A calculation unit for calculating an actual liquid level value according to one of the all measurement results that is not greater than a first preset value; A warning unit for issuing an oil shortage prompt according to the actual liquid level value being less than the first preset value.

4. A vehicle, characterized in that, Including a fuel tank assembly, the fuel tank assembly including a liquid level detection component; And the control device of the vehicle as described in claim 3, the control device being electrically connected to the liquid level detection component.

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