Oil quantity calibration method and device, electronic equipment, storage medium and vehicle

Abstract

The embodiment of the invention discloses a fuel quantity calibration method and device, electronic equipment, a storage medium and a vehicle, and belongs to the technical field of vehicles. The fuel quantity calibration method at least comprises the steps that a first fuel meter display value and a first fuel quantity value are recorded in response to the situation that a vehicle enters a static state; detecting a second fuel quantity value after the vehicle is kept in the static state for a preset time; after a preset time, continuously collecting a preset number of oil quantity resistance values so as to judge whether the oil quantity change trend corresponding to the preset number of oil quantity resistance values is a rising trend or not; and when the difference value between the second oil quantity value and the first oil meter display value is not smaller than a first preset value, the difference value between the second oil quantity value and the first oil quantity value is not smaller than a second preset value, and the oil quantity change trend after preset time is a rising trend, a static refueling calibration strategy is triggered, so that real-time calibration of the oil meter display value in the static refueling scene is achieved. According to the embodiment of the invention, the accuracy of oil meter display can be improved, and the user experience is improved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of vehicle technology, and in particular, to an oil level calibration method, device, electronic equipment, storage medium and vehicle. Background Art

[0002] Most traditional automobile fuel tanks are saddle-shaped straddle-type fuel tanks. The oil float in the fuel tank can only test the oil level according to the vertical height. The mechanical structure connected to the oil float is used to adjust the resistance value. The oil float will change with the adjustment of the liquid level in the fuel tank, thereby driving the change of resistance value. Different resistance values ​​correspond to different remaining oil amounts in the fuel tank.

[0003] However, when the vehicle goes from moving to stationary and finally refueling on a non-horizontal surface, the fuel tank liquid level fluctuates violently due to changes in the vehicle's motion state and the slope, which in turn causes the oil float to fluctuate to varying degrees under the buoyancy of the oil surface. This makes it difficult for the traditional fuel resistance signal acquisition method to accurately display the fuel amount in the above process, affecting the user experience. Summary of the invention

[0004] The embodiments of the present invention provide a fuel level calibration method, device, electronic device, storage medium and vehicle, so as to at least solve the technical problem that the fuel level display of the existing vehicle is inaccurate when the vehicle changes from motion to stillness and finally in the non-horizontal surface refueling scenario, thereby improving the accuracy of the fuel gauge display and improving the user experience.

[0005] In a first aspect, an embodiment of the present invention provides an oil level calibration method, which at least includes:

[0006] S1. In response to the vehicle entering a stationary state, recording a first fuel gauge display value and a first fuel level value;

[0007] S2, after the vehicle remains in the stationary state for a preset time, detecting a second fuel level value;

[0008] S3, after the second oil level value detection is completed, continuously collecting a preset number of oil level resistance values ​​to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend;

[0009] S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than a first preset value, the difference between the second fuel level value and the first fuel level value is not less than a second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in a static refueling scenario.

[0010] Optionally, after step S3, the method further includes:

[0011] S5. When the difference between the first fuel gauge display value and the second fuel level value is not less than the third preset value, the difference between the first fuel level value and the second fuel level value is not less than the fourth preset value, and the fuel level change trend after the preset time is a downward trend, the static fuel reduction calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

[0012] Optionally, the static refueling calibration strategy in step S4 at least includes:

[0013] S41, when the static refueling calibration strategy is triggered, detecting a first remaining fuel amount and calculating a first body tilt angle of the vehicle;

[0014] S42, determining a first oil amount compensation value according to the first vehicle body inclination angle;

[0015] S43. Calculate a real-time calibration value of the fuel gauge in the static refueling scenario based on the first fuel level compensation value and the first remaining fuel level value, and update the real-time calibration value of the fuel gauge in the static refueling scenario to the fuel gauge.

[0016] Optionally, the static oil reduction calibration strategy in step S5 at least includes:

[0017] S51, when the static fuel reduction calibration strategy is triggered, detecting a second remaining fuel amount and calculating a second body tilt angle of the vehicle;

[0018] S52, determining a second oil amount compensation value according to the second vehicle body inclination angle;

[0019] S53: Calculate the real-time calibration value of the fuel gauge in the static fuel reduction scenario based on the second fuel level compensation value and the second remaining fuel level value, and update the real-time calibration value of the fuel gauge in the static fuel reduction scenario to the fuel gauge.

[0020] Optionally, after step S4, the method further includes:

[0021] S6, in response to the vehicle entering a start-up state, calculating a real-time calibration value of the fuel gauge after the vehicle is started according to the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in the static refueling scenario, and updating the real-time calibration value of the fuel gauge after the vehicle is started to the fuel gauge;

[0022] The real-time calibration value of the fuel gauge after the vehicle is started is calculated at least in the following manner:

[0023] D = D1-αC1;

[0024] In the above formula, D represents the real-time calibration value of the fuel gauge after the vehicle is started, D1 represents the final calibration value of the fuel gauge in the static refueling scenario, α represents the real-time dynamic adjustment coefficient, and C1 represents the real-time fuel consumption value of the whole vehicle;

[0025] The real-time fuel consumption value of the vehicle is updated at least through the following steps:

[0026] Determining a time interval for accumulating the instantaneous fuel consumption value according to the accuracy of the instantaneous fuel consumption value of the vehicle and the value type of the instantaneous fuel consumption value;

[0027] Accumulating the instantaneous fuel consumption value once every the accumulation time interval to update the real-time fuel consumption value of the whole vehicle;

[0028] The real-time dynamic adjustment parameters are determined at least in the following ways:

[0029] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not less than a first threshold, the real-time dynamic adjustment parameter is set to a first value;

[0030] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time fuel gauge calibration value after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to a second value;

[0031] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time fuel gauge calibration value after the vehicle is started is less than the second threshold but greater than a third threshold, the real-time dynamic adjustment parameter is set to a third value;

[0032] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to a fourth value;

[0033] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold but not less than the second threshold, the real-time dynamic adjustment parameter is set to a fifth value;

[0034] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to a sixth value;

[0035] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, or the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, the real-time dynamic adjustment parameter is set to the seventh value.

[0036] Optionally, after step S4, the method further includes:

[0037] S7, in response to the vehicle entering a driving state, calculating a change value of a real-time calibration value of the fuel gauge of the vehicle and a change value of a real-time fuel consumption value of the whole vehicle between adjacent detection moments, and determining that the vehicle is in a rapid fuel leakage state when a difference between a change value of a real-time calibration value of the fuel gauge of the vehicle and a change value of a real-time fuel consumption value of the whole vehicle between adjacent detection moments exceeds a first preset number of times when an abnormal situation of a first preset fuel amount occurs continuously;

[0038] S8. In response to the vehicle entering a driving state, the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle at each detection moment is calculated; when an abnormal situation in which the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle exceeds a second preset fuel amount and occurs consecutively for a second preset number of times, and the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle shows an upward trend with the change of the detection moment, it is determined that the vehicle is in a slow oil leakage state.

[0039] In a second aspect, an embodiment of the present invention further provides an oil quantity calibration device, comprising at least:

[0040] A recording module, at least used for recording a first fuel gauge display value and a first fuel level value in response to the vehicle entering a stationary state;

[0041] a detection module, at least used for detecting a second fuel level value after the vehicle remains in the stationary state for a preset time;

[0042] The collection module is at least used to continuously collect a preset number of oil resistance values ​​after the preset time to determine whether the oil quantity change trend corresponding to the preset number of oil resistance values ​​is an upward trend;

[0043] The strategy trigger module is used to trigger the static refueling calibration strategy at least when the difference between the second oil level value and the first oil gauge display value is not less than a first preset value, the difference between the second oil level value and the first oil level value is not less than a second preset value, and the oil level change trend after the preset time is an upward trend, so as to realize real-time calibration of the oil gauge display value in a static refueling scenario.

[0044] In a third aspect, an embodiment of the present invention further provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the oil quantity calibration method as described in any one of the first aspects are executed.

[0045] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the oil quantity calibration method described in any one of the first aspects.

[0046] In a fifth aspect, an embodiment of the present invention further provides a vehicle, which is integrated with at least the oil quantity calibration device as described in the second aspect.

[0047] The embodiment of the present invention provides a fuel quantity calibration method, device, electronic device, storage medium and vehicle. First, in response to the vehicle entering a stationary state, a first fuel gauge display value and a first fuel quantity value are recorded; second, after the vehicle remains in a stationary state for a preset time, a second fuel quantity value is detected; then, after the preset time, a preset number of fuel quantity resistance values ​​are continuously collected to determine whether the fuel quantity change trend corresponding to the preset number of fuel quantity resistance values ​​is an upward trend; finally, when the difference between the second fuel quantity value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel quantity value and the first fuel quantity value is not less than the second preset value, and the fuel quantity change trend after the preset time is an upward trend, a static refueling calibration strategy is triggered to achieve real-time calibration of the fuel gauge display value in a static refueling scenario.

[0048] Therefore, in the embodiment of the present invention, when the vehicle just stops (i.e., the vehicle enters a stationary state), the oil level value displayed on the vehicle fuel gauge (i.e., the first fuel gauge display value) and the oil level value measured by the mechanical oil level measuring sensor composed of an oil float, a mechanical structure, etc. (i.e., the first oil level value) are recorded respectively; after the vehicle stops for a preset time, the oil level value measured by the mechanical oil level measuring sensor is obtained again (i.e., the second oil level value is detected); after the second oil level value is detected, a preset number of oil level resistance values ​​generated by the mechanical structure driven by the oil float under the action of the buoyancy of the oil surface are continuously collected, and then the oil level change trend in the vehicle tank is judged according to the change of each oil level resistance value. It can be understood that if the difference between the second fuel level value and the first fuel gauge display value (i.e., the difference between the second fuel level value and the first fuel gauge display value) is less than the first preset value and / or the difference between the second fuel level value and the first fuel level value (i.e., the difference between the second fuel level value and the first fuel gauge display value) is less than the second preset value, it means that the oil level in the fuel tank has risen but the increase is not large. At this time, the fuel tank liquid level is most likely to fluctuate due to the inertia and slope of the change in the vehicle's motion state, and it cannot be determined that the vehicle is in a refueling state; if and only if the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value (such a setting can effectively eliminate the possibility of changes in the fuel tank liquid level caused by the inertia and slope of the change in the vehicle's state), and the trend of the oil level change in the vehicle's fuel tank is an upward trend, it is determined that the vehicle is refueling, and the static refueling calibration strategy is triggered at this time to realize real-time calibration of the fuel gauge display value in a static refueling scenario.

[0049] In summary, the embodiments of the present invention can solve the technical problem that when a vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, the fuel tank level fluctuates violently due to the change in the vehicle's motion state and the slope, which in turn causes the oil float to fluctuate to varying degrees under the action of the buoyancy of the oil surface, affecting the accuracy of the fuel quantity display. Through triple judgment (i.e., whether the difference obtained by subtracting the first fuel gauge display value from the second fuel quantity value is less than the first preset value, whether the difference obtained by subtracting the first fuel quantity value from the second fuel quantity value is less than the second preset value, and whether the trend of the fuel quantity change in the vehicle's fuel tank is an upward trend), the possibility of the vehicle being affected by the inertia and slope of its own motion state change and causing the fuel tank level to change is effectively eliminated. The static refueling calibration strategy is only triggered when it is determined that the vehicle is in the refueling state, which can realize real-time calibration of the fuel gauge display value in a static non-horizontal surface refueling scenario, improve the accuracy of the fuel gauge display, and help improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 An oil quantity calibration method provided by an embodiment of the present invention;

[0052] Figure 2 Another oil quantity calibration method provided by an embodiment of the present invention;

[0053] Figure 3 is a flow chart of a static refueling calibration strategy provided by an embodiment of the present invention;

[0054] Figure 4 is a flow chart of a static oil reduction calibration strategy provided by an embodiment of the present invention;

[0055] Figure 5 is a flow chart of another oil quantity calibration method provided by an embodiment of the present invention;

[0056] Figure 6 is a flow chart of another oil quantity calibration method provided by an embodiment of the present invention;

[0057] Figure 7 is a structural schematic diagram of an oil quantity calibration device provided by an embodiment of the present invention;

[0058] Figure 8 It is a structural schematic diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0060] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0061] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0062] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0063] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0064] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.

[0065] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0066] The embodiment of the present invention provides an oil quantity calibration method. Figure 1 This is a flow chart of a fuel calibration method provided by an embodiment of the present invention. This embodiment can be applied to any scenario where a vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, such as a fuel motorcycle, a fuel tricycle, a fuel car, a hybrid car, etc. The fuel calibration method can be, but is not limited to, executed by the fuel calibration device in the embodiment of the present invention as the execution subject, and the execution subject can be implemented in software and / or hardware. Figure 1 As shown, the oil quantity calibration method comprises at least the following steps:

[0067] S1. In response to a vehicle entering a stationary state, a first fuel gauge display value and a first fuel level value are recorded.

[0068] The vehicle entering a stationary state may refer to a state in which the vehicle speed drops from non-zero to zero and the vehicle just stops. In addition, the first fuel gauge display value may refer to the fuel level value displayed on the vehicle fuel gauge when the vehicle enters a stationary state; the first fuel level value may refer to the fuel level value measured by a mechanical fuel level measurement sensor composed of an oil float, a mechanical structure, etc. when the vehicle enters a stationary state.

[0069] S2. After the vehicle remains stationary for a preset time, detecting a second fuel level value.

[0070] Among them, the vehicle remains in a stationary state for a preset time can refer to a certain moment after the preset time has passed since the vehicle stopped. It can be understood that the preset time is related to vehicle parameters (such as fuel tank shape, characteristic parameters of the fuel in the fuel tank, vehicle braking system parameters, etc.), which is mainly used to characterize how long it takes for the fuel tank liquid level to stabilize after the vehicle stops. The preset time can be obtained through preliminary experiments, for example, it can be 5s. In addition, the second oil value is obtained in the same way as the first oil value. The second oil value can refer to the oil value measured by the mechanical oil level measurement sensor after the vehicle remains in a stationary state for a preset time; the first oil value and the second oil value can both be converted by the mechanical oil level measurement sensor according to its own resistance value.

[0071] S3. After the second oil level value detection is completed, a preset number of oil level resistance values ​​are continuously collected to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend.

[0072] Among them, continuously collecting a preset number of oil resistance values ​​may refer to continuously collecting a preset number of oil resistance values ​​generated by the oil float driving the mechanical structure under the buoyancy of the fuel in the fuel tank. It can be seen that different oil resistance values ​​correspond to different oil volumes. In a specific implementation, the preset number of oil resistance values ​​can be converted into oil volumes first, and then the oil volume change trend can be judged. The preset number can be adaptively adjusted according to the actual vehicle application requirements, for example, it can be 20.

[0073] S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static refueling scenario.

[0074] The difference between the second fuel level value and the first fuel gauge display value may refer to the difference between the second fuel level value and the first fuel gauge display value, and the difference between the second fuel level value and the first fuel level value may refer to the difference between the second fuel level value and the first fuel level value. The first preset value and the second preset value are related to the actual application scenario of the vehicle, and both can be obtained through preliminary experiments; for example, the first preset value and the second preset value can both be set to 5L.

[0075] This embodiment provides a method for calibrating the amount of oil. First, in response to a vehicle entering a stationary state, a first oil gauge display value and a first oil level value are recorded; second, after the vehicle remains in a stationary state for a preset time, a second oil level value is detected; then, after the preset time, a preset number of oil level resistance values ​​are continuously collected to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend; finally, when the difference between the second oil level value and the first oil gauge display value is not less than the first preset value, the difference between the second oil level value and the first oil level value is not less than the second preset value, and the oil level change trend after the preset time is an upward trend, a static refueling calibration strategy is triggered to achieve real-time calibration of the oil gauge display value in a static refueling scenario.

[0076] Therefore, in this embodiment, when the vehicle just stops, the oil level value displayed on the vehicle fuel gauge and the oil level value measured by the mechanical oil level measuring sensor composed of the oil float, the mechanical structure, etc. are recorded respectively; after the vehicle stops for a preset time, the oil level value measured by the mechanical oil level measuring sensor is obtained again; after the second oil level value detection is completed, a preset number of oil level resistance values ​​generated by the mechanical structure driven by the oil float under the action of the buoyancy of the oil surface are continuously collected, and then the oil level change trend in the vehicle tank is judged according to the change of each oil level resistance value. It can be understood that if the difference between the second fuel level value and the first fuel gauge display value is less than the first preset value and / or the difference between the second fuel level value and the first fuel level value is less than the second preset value, it means that the oil level in the fuel tank has risen but the increase is not large. At this time, the fuel tank level is most likely to fluctuate due to the inertia of the change in the vehicle's motion state and the slope, and the vehicle cannot be determined to be in a refueling state; if and only if the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value (such a setting can effectively eliminate the possibility of changes in the fuel tank level due to the inertia of the change in the vehicle's state or the slope), and the trend of the change in the fuel level in the vehicle's fuel tank is an upward trend, it is determined that the vehicle is refueling, and the static refueling calibration strategy is triggered at this time to achieve real-time calibration of the fuel gauge display value in a static refueling scenario.

[0077] In summary, the present embodiment can solve the technical problem that when the vehicle changes from motion to stationary and finally refuels on a non-horizontal surface, the fuel tank level fluctuates due to the change in the vehicle's motion state or the slope, which in turn causes the oil float to fluctuate to varying degrees under the action of the buoyancy of the oil surface, affecting the accuracy of the fuel level display. Through triple judgment (i.e., whether the difference obtained by subtracting the first fuel gauge display value from the second fuel level value is less than the first preset value, whether the difference obtained by subtracting the first fuel level value from the second fuel level value is less than the second preset value, and whether the trend of the fuel level change in the vehicle's fuel tank is an upward trend), the possibility of the vehicle being affected by the inertia or slope of its own motion state change and causing the fuel tank level to change can be effectively eliminated. The static refueling calibration strategy is only triggered when it is determined that the vehicle is in the refueling state, thereby realizing real-time calibration of the fuel gauge display value in the static refueling scenario, improving the accuracy of the fuel gauge display, and helping to improve the user experience.

[0078] It should be noted that, in a specific implementation, since the oil level resistance value and the oil level value are in a one-to-one correspondence, it is assumed that when the oil level value increases, the oil level resistance value also increases, then the aforementioned step S4 can also be:

[0079] S4. When the difference between the second oil level value and the first oil gauge display value is not less than the first preset value, the difference between the second oil level value and the first oil level value is not less than the second preset value, and the change trend of the oil level resistance value is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the oil gauge display value in the static refueling scenario.

[0080] In another specific implementation, if the oil level resistance value shows a downward trend when the oil level value increases, the aforementioned step S4 may also be:

[0081] S4. When the difference between the second oil level value and the first oil gauge display value is not less than the first preset value, the difference between the second oil level value and the first oil level value is not less than the second preset value, and the change trend of the oil level resistance value is a downward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the oil gauge display value in the static refueling scenario.

[0082] In real life, when users park their vehicles on non-level surfaces such as roadsides and parking lots, the vehicle may be at risk of oil leakage due to its own faults or fuel theft. At this time, it is necessary to calibrate the display value of the fuel gauge in the static fuel reduction scenario in real time in order to achieve accurate and effective monitoring of the vehicle's fuel. In this way, once the vehicle detects oil leakage or fuel theft, timely response measures can be taken, such as notifying the owner, calling the police, etc.

[0083] Based on the above considerations, the following describes a method for real-time calibration of the fuel level display value in a static fuel reduction scenario of a vehicle, but does not limit the present invention. In a specific embodiment, optionally, after step S3, the method further includes:

[0084] S5. When the difference between the first fuel gauge display value and the second fuel level value is not less than the third preset value, the difference between the first fuel level value and the second fuel level value is not less than the fourth preset value, and the fuel level change trend after the preset time is a downward trend, the static fuel reduction calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

[0085] Based on the above implementation, Figure 2 Another oil quantity calibration method provided by the embodiment of the present invention is shown in Figure 2 The oil quantity calibration method comprises at least the following steps:

[0086] S1. In response to a vehicle entering a stationary state, a first fuel gauge display value and a first fuel level value are recorded.

[0087] S2. After the vehicle remains stationary for a preset time, detecting a second fuel level value.

[0088] S3. After the second oil level value detection is completed, a preset number of oil level resistance values ​​are continuously collected to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend.

[0089] S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static refueling scenario.

[0090] S5. When the difference between the first fuel gauge display value and the second fuel level value is not less than the third preset value, the difference between the first fuel level value and the second fuel level value is not less than the fourth preset value, and the fuel level change trend after the preset time is a downward trend, the static fuel reduction calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

[0091] The difference between the first fuel gauge display value and the second fuel level value may refer to the difference between the first fuel gauge display value and the second fuel level value, and the difference between the first fuel level value and the second fuel level value may refer to the difference between the first fuel level value and the second fuel level value. Similarly, the third preset value and the fourth preset value are related to the specific application scenario of the vehicle, and both can be obtained through preliminary experiments; illustratively, the third preset value and the fourth preset value can both be set to 5L.

[0092] It can be seen that, in this embodiment, when the vehicle just stops, the oil level value displayed on the vehicle fuel gauge and the oil level value measured by the mechanical oil level measuring sensor composed of the oil float, the mechanical structure, etc. are recorded respectively; after the vehicle stops for a preset time, the oil level value measured by the mechanical oil level measuring sensor is obtained again; after the second oil level value detection is completed, a preset number of oil level resistance values ​​generated by the mechanical structure driven by the oil float under the action of the buoyancy of the oil surface are continuously collected, and then the oil level change trend in the vehicle tank is judged according to the change of each oil level resistance value. It can be understood that if the difference between the first fuel gauge display value and the second fuel value is less than the third preset value and / or the difference between the first fuel value and the second fuel value is less than the fourth preset value, it means that the oil level in the fuel tank has dropped but the drop is not large. At this time, the fuel tank level is most likely to fluctuate due to the inertia of the change in the vehicle's motion state and the slope, and it cannot be determined that the vehicle is in a reduced fuel state (that is, the state where the fuel volume is decreasing corresponding to the aforementioned oil leakage or fuel theft, etc.); if and only if the difference between the first fuel gauge display value and the second fuel value is not less than the third preset value, the difference between the first fuel value and the second fuel value is not less than the fourth preset value (such a setting can effectively exclude the possibility of changes in the fuel tank level caused by the inertia of the change in the vehicle state or the slope), and the trend of the fuel volume change in the vehicle's fuel tank is a downward trend, it is determined that the vehicle's fuel volume is decreasing, and the static fuel reduction calibration strategy is triggered at this time to achieve real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

[0093] In summary, this embodiment can solve the technical problem that the fuel tank level fluctuates due to the change of the vehicle's motion state or the slope in the scenario where the vehicle changes from motion to stillness and finally refuels (or reduces oil) on a non-horizontal surface, which in turn causes the oil float to fluctuate to varying degrees under the buoyancy of the oil surface, affecting the accuracy of the oil quantity display. For the static refueling scenario (or static oil reduction scenario), the possibility of the vehicle's tank level changing due to the inertia or slope of its own motion state change can be effectively eliminated through triple judgment. Only when it is determined that the vehicle is in the refueling state (or oil reduction state) is the static refueling calibration strategy (or static oil reduction calibration strategy) triggered, and the real-time calibration of the oil gauge display value in the static refueling scenario (or static oil reduction scenario) is realized, which improves the accuracy of the oil gauge display and helps improve the user experience. At the same time, by improving the accuracy of oil quantity detection, it helps the vehicle to accurately and effectively monitor the fuel. Once the vehicle detects oil leakage or fuel theft, it can take timely countermeasures, such as notifying the owner and calling the police.

[0094] Based on the above embodiments or implementations, the static refueling calibration strategy and the static oil reduction calibration strategy are described below, but this is not intended to limit the present invention. In a specific implementation, Figure 3 is a flow chart of a static refueling calibration strategy provided by an embodiment of the present invention, see Figure 3Optionally, the static refueling calibration strategy in step S4 at least includes:

[0095] S41: When the static refueling calibration strategy is triggered, a first remaining fuel amount is detected and a first body tilt angle of the vehicle is calculated.

[0096] The first remaining oil volume may refer to the oil volume value measured by the mechanical oil level measurement sensor when the static refueling calibration strategy is triggered. It is understandable that because the vehicle is in a non-horizontal state, the first remaining oil volume measured by the mechanical oil level measurement sensor has a certain error due to the vehicle tilt. In addition, the first vehicle body tilt angle may be calculated by an angle sensor such as a gyroscope, for example.

[0097] S42: Determine a first oil level compensation value according to a first vehicle body inclination angle.

[0098] The first oil level compensation value can be used to reduce the influence of the first vehicle body tilt angle on the oil level displayed on the oil gauge, and can be a positive number, 0 or a negative number. It can be understood that the specific implementation method of determining the first oil level compensation value according to the first vehicle body tilt angle can be to determine the first oil level compensation value by looking up a preset table according to the first vehicle body tilt angle, and the preset table can be obtained through a preliminary experiment.

[0099] Illustratively, Table 1 is a tabular form of a preset table provided by an embodiment of the present invention.

[0100] Table 1

[0101]

[0102] S43: Calculate a real-time calibration value of the fuel gauge in a static refueling scenario based on the first fuel level compensation value and the first remaining fuel level value, and update the real-time calibration value of the fuel gauge in the static refueling scenario to the fuel gauge.

[0103] The real-time oil gauge calibration value may be the sum of the first oil level compensation value and the first remaining oil level value.

[0104] Based on this, when the vehicle is in the refueling state and the static refueling calibration strategy is triggered, this embodiment can realize real-time calibration of the fuel gauge display value in the static refueling scenario, thereby improving the accuracy of the fuel gauge display and improving the user experience.

[0105] In another specific embodiment, Figure 4 is a flow chart of a static oil reduction calibration strategy provided by an embodiment of the present invention, such as Figure 4 As shown, optionally, the static oil reduction calibration strategy in step S5 at least includes:

[0106] S51 : When the static fuel reduction calibration strategy is triggered, detecting a second remaining fuel amount and calculating a second vehicle body tilt angle.

[0107] The second remaining oil volume may refer to the oil volume value measured by the mechanical oil level measurement sensor when the static oil reduction calibration strategy is triggered. It is understandable that, since the vehicle is in a non-horizontal state, the second remaining oil volume measured by the mechanical oil level measurement sensor is affected by the vehicle tilt and has a certain error. In addition, the second vehicle body tilt angle may also be calculated by any angle sensor.

[0108] S52: Determine a second oil amount compensation value according to a second vehicle body inclination angle.

[0109] The second oil level compensation value can be used to reduce the influence of the second vehicle body tilt angle on the oil level displayed on the oil gauge, and can be a positive number, 0 or a negative number. It can be understood that the specific implementation method of determining the second oil level compensation value according to the second vehicle body tilt angle can be to determine the second oil level compensation value by looking up a preset table according to the second vehicle body tilt angle, and the preset table can be obtained through a preliminary experiment.

[0110] S53: Calculate the real-time calibration value of the fuel gauge in the static fuel reduction scenario based on the second fuel amount compensation value and the second remaining fuel amount value, and update the real-time calibration value of the fuel gauge in the static fuel reduction scenario to the fuel gauge.

[0111] The real-time calibration value of the fuel gauge may be the sum of the second fuel level compensation value and the second remaining fuel level value.

[0112] Therefore, when the vehicle is in a fuel reduction state and triggers the static fuel reduction calibration strategy, this embodiment can realize real-time calibration of the fuel gauge display value in a static fuel reduction scenario, thereby improving the accuracy of the fuel gauge display and improving the user experience.

[0113] In addition to the above scheme, the inventor has found through careful research that the fuel float will also fluctuate greatly due to the road slope and acceleration and deceleration problems during the driving process of the vehicle, which will cause the fuel resistance to rise and fall significantly. Even if the remaining fuel volume has not actually changed, the resistance output by the fuel sensor is unstable. It can be seen that due to the existence of the float jitter and resistance fluctuation problems, the existing measurement method of directly converting the resistance value into the fuel volume is difficult to make the instrument normally display the remaining fuel volume of the current fuel tank. If the resistance value and fuel volume relationship table is directly mapped to the remaining fuel volume, the fuel volume bar displayed on the instrument will rise or fall rapidly during the driving process or uphill and downhill, which will not only cause abnormal vehicle phenomena such as fuel volume fluctuation, frequent flashing of the fuel gauge warning light, and inaccurate fuel volume display value, but also may cause the vehicle to stall and break down due to sudden exhaustion of fuel, thereby causing accidents, which is easy to cause psychological panic and unnecessary losses to the driver or passengers.

[0114] In view of this, the following at least describes the calibration strategy of the fuel gauge display value during vehicle driving, but does not limit the present invention. In a specific implementation, optionally, after step S4, it also includes:

[0115] S6. In response to the vehicle entering a start state, a real-time calibration value of the fuel gauge after the vehicle is started is calculated according to the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in a static refueling scenario, and the real-time calibration value of the fuel gauge after the vehicle is started is updated to the fuel gauge.

[0116] Based on the above implementation, Figure 5 is a flow chart of another oil quantity calibration method provided by an embodiment of the present invention, see Figure 5 The oil quantity calibration method at least comprises the following steps:

[0117] S1. In response to a vehicle entering a stationary state, a first fuel gauge display value and a first fuel level value are recorded.

[0118] S2. After the vehicle remains stationary for a preset time, detecting a second fuel level value.

[0119] S3. After the second oil level value detection is completed, a preset number of oil level resistance values ​​are continuously collected to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend.

[0120] S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static refueling scenario.

[0121] S6. In response to the vehicle entering a start state, a real-time calibration value of the fuel gauge after the vehicle is started is calculated according to the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in a static refueling scenario, and the real-time calibration value of the fuel gauge after the vehicle is started is updated to the fuel gauge.

[0122] The vehicle entering the start state may refer to the state in which the vehicle changes from motion to stillness and starts the engine after refueling on a non-horizontal surface. Accordingly, the final fuel gauge calibration value in the static refueling scenario may refer to the fuel gauge display value after the vehicle changes from motion to stillness and refuels on a non-horizontal surface and is calibrated by the static refueling calibration strategy.

[0123] In a specific implementation, optionally, the real-time calibration value of the fuel gauge after the vehicle is started is calculated at least in the following manner:

[0124] D = D1-αC1;

[0125] In the above formula, D represents the real-time calibration value of the fuel gauge after the vehicle is started (for example, it may refer to the real-time fuel value displayed on the fuel gauge during the driving process of the vehicle), D1 represents the final fuel gauge calibration value in the static refueling scenario, α represents the real-time dynamic adjustment coefficient, and C1 represents the real-time fuel consumption value of the whole vehicle.

[0126] In another specific implementation, optionally, the real-time fuel consumption value of the vehicle is updated at least through the following steps:

[0127] (1) Determine the accumulation time interval of the instantaneous fuel consumption value according to the accuracy of the instantaneous fuel consumption value of the vehicle and the value type of the instantaneous fuel consumption value.

[0128] (2) The instantaneous fuel consumption value is accumulated at every accumulation time interval to update the real-time fuel consumption value of the whole vehicle.

[0129] The real-time fuel consumption value of the vehicle in this embodiment is calculated based on the instantaneous fuel consumption value of the vehicle.

[0130] Specifically, assuming that the accuracy of the instantaneous fuel consumption value is 0.0000596mL / 100ms, in order to improve the calculation accuracy of the real-time fuel consumption value of the whole vehicle, this embodiment no longer converts the CAN value of the instantaneous fuel consumption into a physical value (such as a voltage or current signal), but directly accumulates the CAN value of the instantaneous fuel consumption (i.e., the numerical type of the aforementioned instantaneous fuel consumption value), for example, accumulating the CAN value once every 100ms (i.e., the aforementioned accumulation time interval), when the accumulation magnitude reaches or exceeds 1e7, the instantaneous fuel consumption value increases by a total of 596ml, at which time, the real-time fuel consumption value of the whole vehicle is updated once. It can be understood that the accuracy of the real-time fuel consumption value of the whole vehicle is higher when the real-time fuel consumption value is set as in this embodiment, which is conducive to ensuring the accuracy of the real-time calibration value of the fuel gauge.

[0131] In another specific implementation, optionally, the real-time dynamic adjustment parameter is determined at least in the following manner:

[0132] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to the first value;

[0133] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to the second value;

[0134] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to the third value;

[0135] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to a fourth value;

[0136] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to a fifth value;

[0137] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to a sixth value;

[0138] When the difference between the real-time calibration value of the fuel gauge after the vehicle is started and the real-time remaining fuel value minus the real-time fuel compensation value is not greater than the third threshold, or the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, the real-time dynamic adjustment parameter is set to the seventh value.

[0139] Among them, the setting of real-time dynamic adjustment parameters is essentially to reduce the potential error of the real-time fuel consumption value of the whole vehicle, in order to further improve the accuracy of the real-time fuel consumption value of the whole vehicle.

[0140] For example, assuming that the first threshold may be 5, the second threshold may be 1, the third threshold may be 0, the first value may be 1.6, the second value may be 1.3, the third value may be 1.1, the fourth value may be 0.4, the fifth value may be 0.7, the sixth value may be 0.9, the seventh value may be 1, X represents the real-time calibration value of the fuel gauge after the vehicle is started, Y represents the real-time remaining fuel value, and Z represents the real-time fuel compensation value, the real-time dynamic adjustment coefficient α may be calculated according to the following formula:

[0141] (1) When X-(Y+Z)≥5: α=1.6. This state indicates that the oil amount shown on the fuel gauge is greater than the oil amount measured by the oil level measurement sensor. It is necessary to adaptively increase the real-time dynamic adjustment coefficient to speed up the decrease of the oil amount on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-1.6C1.

[0142] (2) When 5>X-(Y+Z)≥1: α=1.3. This state indicates that the oil amount shown on the fuel gauge is greater than the oil amount measured by the oil level measurement sensor. It is necessary to appropriately increase the real-time dynamic adjustment coefficient to speed up the decrease of the oil amount on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-1.3C1.

[0143] (3) When 1>X-(Y+Z)>0: α=1.1. This state indicates that the oil amount shown on the fuel gauge is greater than the oil amount measured by the oil level measurement sensor. It is necessary to appropriately increase the real-time dynamic adjustment coefficient to speed up the decrease of the oil amount on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-1.1C1.

[0144] (4) (Y+Z)-X≥5: α=0.4. This state indicates that the oil volume measured by the oil level measurement sensor is greater than the oil volume displayed on the fuel gauge. It is necessary to appropriately reduce the real-time dynamic adjustment coefficient to slow down the rate of decrease of the oil volume on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-0.4C1.

[0145] (5) When 5>(Y+Z)-X≥1: α=0.7. This state indicates that the oil volume measured by the oil level measurement sensor is greater than the oil volume displayed on the fuel gauge. It is necessary to appropriately reduce the real-time dynamic adjustment coefficient to slow down the rate of decrease of the oil volume on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-0.7C1.

[0146] (6) When 1>(Y+Z)-X>0: α=0.9. This state indicates that the oil volume measured by the oil level measurement sensor is greater than the oil volume displayed on the fuel gauge. It is necessary to adaptively reduce the real-time dynamic adjustment coefficient to slow down the rate of decrease of the oil volume on the fuel gauge. At this time, the calculation formula for the real-time calibration value of the fuel gauge after the vehicle is started is: D=D1-0.9C1.

[0147] (7) In other cases, α is 1.

[0148] In summary, this implementation can solve the technical problem that the fuel tank level fluctuates due to the change of the vehicle's motion state or the slope when the vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, which causes the oil float to fluctuate to varying degrees under the buoyancy of the oil surface, affecting the accuracy of the oil display. The triple judgment can effectively eliminate the possibility that the vehicle is affected by the inertia or slope of its own motion state change and the fuel tank level changes. Only when it is determined that the vehicle is in the refueling state will the static refueling calibration strategy be triggered to achieve real-time calibration of the fuel gauge display value in the static refueling scenario, improve the accuracy of the fuel gauge display, and help improve the user experience. On the other hand, this embodiment also calculates the real-time calibration value of the fuel gauge after the vehicle is started through the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in the static refueling scenario, realizing the calibration process of the fuel gauge display value during vehicle driving; at the same time, compared with the prior art, the calculation method of the real-time fuel consumption value and real-time dynamic adjustment parameter of the whole vehicle provided in this embodiment has higher accuracy, further ensuring the accuracy of the fuel gauge display value during vehicle driving, which is conducive to improving the user experience.

[0149] Based on the above embodiments or implementations, the following describes the oil leakage detection strategy for a vehicle in a driving state, but does not limit the present invention. In a specific implementation, optionally, after step S4, it also includes:

[0150] S7, in response to the vehicle entering a driving state, calculating a change value of a real-time calibration value of the fuel gauge of the vehicle and a change value of a real-time fuel consumption value of the whole vehicle between adjacent detection moments, and determining that the vehicle is in a rapid fuel leakage state when the difference between the change value of the real-time calibration value of the fuel gauge of the vehicle and the change value of the real-time fuel consumption value of the whole vehicle between adjacent detection moments exceeds a first preset number of times when an abnormal situation of a first preset fuel amount occurs continuously;

[0151] S8. In response to the vehicle entering a driving state, the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle at each detection moment is calculated; when the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle exceeds a second preset amount of fuel and an abnormal situation occurs consecutively for a second preset number of times, and the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle shows an upward trend with the detection moment, it is determined that the vehicle is in a slow oil leakage state.

[0152] Based on the above implementation, Figure 6 is a flow chart of another oil quantity calibration method provided by an embodiment of the present invention, see Figure 6 The oil quantity calibration method at least comprises the following steps:

[0153] S1. In response to a vehicle entering a stationary state, a first fuel gauge display value and a first fuel level value are recorded.

[0154] S2. After the vehicle remains stationary for a preset time, detecting a second fuel level value.

[0155] S3. After the second oil level value detection is completed, a preset number of oil level resistance values ​​are continuously collected to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend.

[0156] S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static refueling scenario.

[0157] S7. In response to the vehicle entering a driving state, a change value of the real-time calibration value of the vehicle's fuel gauge and a change value of the real-time fuel consumption value of the whole vehicle between adjacent detection moments are calculated; when the difference between the change value of the real-time calibration value of the vehicle's fuel gauge and the change value of the real-time fuel consumption value of the whole vehicle between adjacent detection moments exceeds a first preset number of times when an abnormal situation of a first preset oil amount occurs consecutively, it is determined that the vehicle is in a rapid oil leakage state.

[0158] Among them, assuming that the detection cycle (i.e. the interval between adjacent detection moments) is 5000ms, that is, the vehicle is detected every 5s to see if it is in a state of rapid oil leakage, then step S7 may specifically refer to calculating the difference between the change value of the real-time calibration value of the fuel gauge and the change value of the real-time fuel consumption value of the vehicle every 5s to determine whether the vehicle is leaking oil rapidly. If the difference is detected for 100 consecutive times (i.e. the first preset number of times, equivalent to continuous judgment for 500s) and exceeds 5L (i.e. the first preset oil volume), the rapid oil leakage judgment is established.

[0159] S8. In response to the vehicle entering a driving state, the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle at each detection moment is calculated; when the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle exceeds a second preset amount of fuel and an abnormal situation occurs consecutively for a second preset number of times, and the difference between the real-time calibration value of the vehicle's fuel gauge and the value of the remaining fuel in the vehicle shows an upward trend with the detection moment, it is determined that the vehicle is in a slow oil leakage state.

[0160] Among them, assuming that the detection cycle (i.e., the interval between adjacent detection moments) is still 5000ms, step S8 may specifically refer to calculating the difference between the real-time calibration value of the vehicle's fuel gauge and the vehicle's remaining fuel value (the vehicle's remaining fuel value can be obtained by the oil level measurement sensor through oil resistance value conversion) every 5s interval to determine whether the vehicle has a slow oil leak. If the above difference is detected for 100 consecutive times (i.e., the second preset number of times, equivalent to continuous judgment for 500s) and exceeds 5L (i.e., the second preset fuel volume), and the above difference gradually increases with time, then the slow oil leak judgment is established.

[0161] Therefore, on the one hand, this embodiment can solve the technical problem that when the vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, the fuel tank level fluctuates due to the change in the vehicle's motion state or the slope, which in turn causes the oil float to fluctuate to varying degrees under the buoyancy of the oil surface, affecting the accuracy of the oil level display. The triple judgment can effectively eliminate the possibility that the vehicle is affected by the inertia or slope of its own motion state change and causes the fuel tank level to change. Only when it is determined that the vehicle is in the refueling state will the static refueling calibration strategy be triggered to achieve real-time calibration of the fuel gauge display value in the static refueling scenario, improve the accuracy of the fuel gauge display, and help improve the user experience. On the other hand, this embodiment can also monitor the vehicle from two dimensions of fast oil leakage and slow oil leakage during the vehicle's driving process, which is conducive to improving the user experience and ensuring the user's driving safety.

[0162] The embodiment of the present invention further provides an oil quantity calibration device, Figure 7: is a schematic diagram of the structure of a fuel quantity calibration device provided by an embodiment of the present invention. This embodiment is applicable to any scenario where a vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, such as a fuel motorcycle, a fuel tricycle, a fuel car, a hybrid car, etc. The fuel quantity calibration device can be implemented in software and / or hardware. Figure 7 As shown, the oil quantity calibration device provided in this embodiment at least includes:

[0163] The recording module 110 is at least used for recording a first fuel gauge display value and a first fuel level value in response to the vehicle entering a stationary state;

[0164] The detection module 120 is at least used to detect a second fuel level value after the vehicle remains in a stationary state for a preset time;

[0165] The collection module 130 is at least used to continuously collect a preset number of oil resistance values ​​after a preset time to determine whether the oil quantity change trend corresponding to the preset number of oil resistance values ​​is an upward trend;

[0166] The strategy trigger module 140 is used to trigger the static refueling calibration strategy at least when the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value, and the fuel level change trend after the preset time is an upward trend, so as to realize real-time calibration of the fuel gauge display value in the static refueling scenario.

[0167] Optionally, it also includes:

[0168] The fuel reduction strategy module 150 is at least used to trigger the static fuel reduction calibration strategy when the difference between the first fuel gauge display value and the second fuel level value is not less than the third preset value, the difference between the first fuel level value and the second fuel level value is not less than the fourth preset value, and the fuel level change trend after the preset time is a downward trend, so as to realize real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

[0169] Optionally, the strategy trigger module 140 is at least specifically used to detect a first remaining fuel level and calculate a first body tilt angle of the vehicle when the static refueling calibration strategy is triggered; and, determine a first fuel level compensation value based on the first body tilt angle; and, calculate a real-time calibration value of the fuel gauge in a static refueling scenario based on the first fuel level compensation value and the first remaining fuel level, and update the real-time calibration value of the fuel gauge in the static refueling scenario to the fuel gauge.

[0170] Optionally, the fuel reduction strategy module 150 is at least specifically used to detect a second remaining fuel amount and calculate a second body tilt angle of the vehicle when the static fuel reduction calibration strategy is triggered; and, determine a second fuel amount compensation value according to the second body tilt angle; and, calculate a real-time calibration value of the fuel gauge in a static fuel reduction scenario based on the second fuel amount compensation value and the second remaining fuel amount value, and update the real-time calibration value of the fuel gauge in the static fuel reduction scenario to the fuel gauge.

[0171] Optionally, it also includes:

[0172] The startup calibration module 160 is at least used to calculate the real-time calibration value of the fuel gauge after the vehicle is started according to the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in the static refueling scenario in response to the vehicle entering the startup state, and update the real-time calibration value of the fuel gauge after the vehicle is started to the fuel gauge;

[0173] The real-time calibration value of the fuel gauge after the vehicle is started is calculated at least in the following ways:

[0174] D = D1-αC1;

[0175] In the above formula, D represents the real-time calibration value of the fuel gauge after the vehicle is started, D1 represents the final fuel gauge calibration value in the static refueling scenario, α represents the real-time dynamic adjustment coefficient, and C1 represents the real-time fuel consumption value of the vehicle;

[0176] The real-time fuel consumption value of the vehicle is updated at least through the following steps:

[0177] Determine the accumulation time interval of the instantaneous fuel consumption value according to the accuracy of the instantaneous fuel consumption value of the vehicle and the value type of the instantaneous fuel consumption value;

[0178] The instantaneous fuel consumption value is accumulated once every accumulation time interval to update the real-time fuel consumption value of the whole vehicle;

[0179] The real-time dynamic adjustment parameters are determined at least in the following ways:

[0180] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to the first value;

[0181] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to the second value;

[0182] When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to the third value;

[0183] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to a fourth value;

[0184] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to a fifth value;

[0185] When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to a sixth value;

[0186] When the difference between the real-time calibration value of the fuel gauge after the vehicle is started and the real-time remaining fuel value minus the real-time fuel compensation value is not greater than the third threshold, or the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, the real-time dynamic adjustment parameter is set to the seventh value.

[0187] Optionally, it also includes:

[0188] The fast leakage determination module 170 is at least used for calculating the change value of the real-time calibration value of the fuel gauge of the vehicle and the change value of the real-time fuel consumption value of the whole vehicle between adjacent detection moments in response to the vehicle entering the driving state, and determining that the vehicle is in a fast oil leakage state when the difference between the change value of the real-time calibration value of the fuel gauge of the vehicle between adjacent detection moments and the change value of the real-time fuel consumption value of the whole vehicle between adjacent detection moments exceeds a first preset number of times when the abnormal situation of the first preset oil amount occurs continuously;

[0189] The slow leak determination module 180 is at least used to calculate the difference between the real-time calibration value of the vehicle's fuel gauge and the remaining fuel value of the vehicle at each detection moment in response to the vehicle entering a driving state, and when the difference between the real-time calibration value of the vehicle's fuel gauge and the remaining fuel value of the vehicle exceeds a second preset fuel amount and occurs consecutively for a second preset number of times, and the difference between the real-time calibration value of the vehicle's fuel gauge and the remaining fuel value of the vehicle shows an upward trend with the detection moment, it is determined that the vehicle is in a slow oil leakage state.

[0190] The present embodiment provides a fuel quantity calibration device. First, in response to a vehicle entering a stationary state, a recording module records a first fuel gauge display value and a first fuel quantity value; second, after the vehicle remains in a stationary state for a preset time, a detection module detects a second fuel quantity value; then, after the preset time, a collection module continuously collects a preset number of fuel quantity resistance values ​​to determine whether the fuel quantity change trend corresponding to the preset number of fuel quantity resistance values ​​is an upward trend; finally, when the difference between the second fuel quantity value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel quantity value and the first fuel quantity value is not less than the second preset value, and the fuel quantity change trend after the preset time is an upward trend, the strategy triggering module triggers the static refueling calibration strategy to achieve real-time calibration of the fuel gauge display value in a static refueling scenario.

[0191] Therefore, in this embodiment, when the vehicle just stops (i.e., the vehicle enters a stationary state), the recording module records the oil level value displayed on the vehicle's oil gauge (i.e., the first oil gauge display value) and the oil level value measured by the mechanical oil level measurement sensor composed of an oil float, a mechanical structure, etc. (i.e., the first oil level value); after the vehicle stops for a preset time, the detection module obtains the oil level value measured by the mechanical oil level measurement sensor again (i.e., detects the second oil level value); after the second oil level value detection is completed, the acquisition module continuously acquires a preset number of oil level resistance values ​​generated by the mechanical structure driven by the oil float under the action of the buoyancy of the oil surface, and then judges the oil level change trend in the vehicle's fuel tank according to the changes in each oil level resistance value. It can be understood that if the difference between the second fuel level value and the first fuel gauge display value (i.e., the difference between the second fuel level value and the first fuel gauge display value) is less than the first preset value and / or the difference between the second fuel level value and the first fuel level value (i.e., the difference between the second fuel level value and the first fuel gauge display value) is less than the second preset value, it means that the oil level in the fuel tank has risen but the increase is not large. At this time, the fuel tank liquid level is most likely to fluctuate due to the inertia and slope of the change in the vehicle's motion state, and it cannot be determined that the vehicle is in a refueling state; if and only if the difference between the second fuel level value and the first fuel gauge display value is not less than the first preset value, the difference between the second fuel level value and the first fuel level value is not less than the second preset value (such a setting can effectively eliminate the possibility of changes in the fuel tank liquid level caused by the inertia and slope of the change in the vehicle state), and the trend of the oil level change in the vehicle's fuel tank is an upward trend, the strategy trigger module determines that the vehicle is refueling, and at this time triggers the static refueling calibration strategy to achieve real-time calibration of the fuel gauge display value in a static refueling scenario.

[0192] In summary, the present embodiment can solve the technical problem that when the vehicle changes from motion to stillness and finally refuels on a non-horizontal surface, the fuel tank level fluctuates violently due to the change in the vehicle's motion state and the slope, which in turn causes the oil float to fluctuate to varying degrees under the action of the buoyancy of the oil surface, affecting the accuracy of the fuel quantity display. Through triple judgment (i.e., whether the difference obtained by subtracting the first fuel gauge display value from the second fuel quantity value is less than the first preset value, whether the difference obtained by subtracting the first fuel quantity value from the second fuel quantity value is less than the second preset value, and whether the trend of the fuel quantity change in the vehicle's fuel tank is an upward trend), the possibility of the vehicle being affected by the inertia and slope of its own motion state change and causing the fuel tank level to change is effectively eliminated. The static refueling calibration strategy is only triggered when it is determined that the vehicle is in the refueling state, which can realize real-time calibration of the fuel gauge display value in a static non-horizontal surface refueling scenario, thereby improving the accuracy of the fuel gauge display and improving the user experience.

[0193] An embodiment of the present invention further provides an electronic device, Figure 8 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention, see Figure 8 The electronic device 1000 includes a processor 1001 and a memory 1002. The memory 1002 stores computer-readable instructions. When the computer-readable instructions are executed by the processor 1001, the steps in any one of the above oil quantity calibration methods are executed. Through the above technical solution, the processor 1001 and the memory 1002 are interconnected and communicate with each other through a communication bus and / or other forms of connection mechanisms (not marked), and the memory 1002 stores a computer program executable by the processor. When the electronic device 1000 is running, the processor 1001 executes the computer program to execute the oil quantity calibration method in any optional implementation of the above embodiment to achieve the following functions: in response to the vehicle entering a stationary state, recording the first oil gauge display value and the first oil quantity value; after the vehicle remains in a stationary state for a preset time, detecting the second oil quantity value; after the second oil quantity value is detected, continuously collecting a preset number of oil quantity resistance values ​​to determine whether the oil quantity change trend corresponding to the preset number of oil quantity resistance values ​​is an upward trend; when the difference between the second oil quantity value and the first oil gauge display value is not less than the first preset value, the difference between the second oil quantity value and the first oil quantity value is not less than the second preset value, and the oil quantity change trend is an upward trend, triggering the static refueling calibration strategy to achieve real-time calibration of the oil gauge display value in the static refueling scenario.

[0194] An embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the oil level calibration method provided in all embodiments of the present application: in response to the vehicle entering a stationary state, recording a first oil gauge display value and a first oil level value; after the vehicle remains in a stationary state for a preset time, detecting a second oil level value; after the second oil level value is detected, continuously collecting a preset number of oil level resistance values ​​to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend; when the difference between the second oil level value and the first oil gauge display value is not less than the first preset value, the difference between the second oil level value and the first oil level value is not less than the second preset value, and the oil level change trend is an upward trend, triggering a static refueling calibration strategy to achieve real-time calibration of the oil gauge display value in a static refueling scenario.

[0195] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0196] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0197] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0198] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0199] An embodiment of the present invention further provides a vehicle, which is integrated with the oil level calibration device provided in all the embodiments of the present application.

[0200] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for oil quantity calibration, characterized in that: At least: S1. In response to the vehicle entering a stationary state, recording a first fuel gauge display value and a first fuel level value; S2, after the vehicle remains in the stationary state for a preset time, detecting a second fuel level value; S3, after the second oil level value detection is completed, continuously collecting a preset number of oil level resistance values ​​to determine whether the oil level change trend corresponding to the preset number of oil level resistance values ​​is an upward trend; S4. When the difference between the second fuel level value and the first fuel gauge display value is not less than a first preset value, the difference between the second fuel level value and the first fuel level value is not less than a second preset value, and the fuel level change trend is an upward trend, the static refueling calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in a static refueling scenario.

2. The oil quantity calibration method according to claim 1, characterized in that: After step S3, the method further includes: S5. When the difference between the first fuel gauge display value and the second fuel level value is not less than the third preset value, the difference between the first fuel level value and the second fuel level value is not less than the fourth preset value, and the fuel level change trend after the preset time is a downward trend, the static fuel reduction calibration strategy is triggered to realize real-time calibration of the fuel gauge display value in the static fuel reduction scenario.

3. The oil quantity calibration method according to claim 1 or 2, characterized in that: The static refueling calibration strategy in step S4 at least includes: S41, when the static refueling calibration strategy is triggered, detecting a first remaining fuel amount and calculating a first body tilt angle of the vehicle; S42, determining a first oil amount compensation value according to the first vehicle body inclination angle; S43. Calculate a real-time calibration value of the fuel gauge in the static refueling scenario based on the first fuel level compensation value and the first remaining fuel level value, and update the real-time calibration value of the fuel gauge in the static refueling scenario to the fuel gauge.

4. The oil quantity calibration method according to claim 2, characterized in that: The static oil reduction calibration strategy in step S5 at least includes: S51, when the static fuel reduction calibration strategy is triggered, detecting a second remaining fuel amount and calculating a second body tilt angle of the vehicle; S52, determining a second oil amount compensation value according to the second vehicle body inclination angle; S53: Calculate the real-time calibration value of the fuel gauge in the static fuel reduction scenario based on the second fuel level compensation value and the second remaining fuel level value, and update the real-time calibration value of the fuel gauge in the static fuel reduction scenario to the fuel gauge.

5. The oil quantity calibration method according to claim 1, characterized in that: After step S4, the method further includes: S6, in response to the vehicle entering a start-up state, calculating a real-time calibration value of the fuel gauge after the vehicle is started according to the real-time fuel consumption value of the whole vehicle, the real-time dynamic adjustment coefficient and the final fuel gauge calibration value in the static refueling scenario, and updating the real-time calibration value of the fuel gauge after the vehicle is started to the fuel gauge; The real-time calibration value of the fuel gauge after the vehicle is started is calculated at least in the following manner: D = D1-αC1; In the above formula, D represents the real-time calibration value of the fuel gauge after the vehicle is started, D1 represents the final calibration value of the fuel gauge in the static refueling scenario, α represents the real-time dynamic adjustment coefficient, and C1 represents the real-time fuel consumption value of the whole vehicle; The real-time fuel consumption value of the vehicle is updated at least through the following steps: Determining a time interval for accumulating the instantaneous fuel consumption value according to the accuracy of the instantaneous fuel consumption value of the vehicle and the value type of the instantaneous fuel consumption value; Accumulating the instantaneous fuel consumption value once every the accumulation time interval to update the real-time fuel consumption value of the whole vehicle; The real-time dynamic adjustment parameters are determined at least in the following ways: When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not less than a first threshold, the real-time dynamic adjustment parameter is set to a first value; When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time fuel gauge calibration value after the vehicle is started is less than the first threshold value but not less than the second threshold value, the real-time dynamic adjustment parameter is set to a second value; When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time fuel gauge calibration value after the vehicle is started is less than the second threshold but greater than a third threshold, the real-time dynamic adjustment parameter is set to a third value; When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is not less than the first threshold, the real-time dynamic adjustment parameter is set to a fourth value; When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the first threshold but not less than the second threshold, the real-time dynamic adjustment parameter is set to a fifth value; When the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value minus the real-time calibration value of the fuel gauge after the vehicle is started is less than the second threshold but greater than the third threshold, the real-time dynamic adjustment parameter is set to a sixth value; When the difference between the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, or the difference between the sum of the real-time remaining fuel value and the real-time fuel compensation value subtracted from the real-time calibration value of the fuel gauge after the vehicle is started is not greater than the third threshold, the real-time dynamic adjustment parameter is set to the seventh value.

6. The oil quantity calibration method according to claim 1, characterized in that: After step S4, the method further includes: S7, in response to the vehicle entering a driving state, calculating a change value of a real-time calibration value of the fuel gauge of the vehicle and a change value of a real-time fuel consumption value of the whole vehicle between adjacent detection moments, and determining that the vehicle is in a rapid fuel leakage state when a difference between a change value of a real-time calibration value of the fuel gauge of the vehicle and a change value of a real-time fuel consumption value of the whole vehicle between adjacent detection moments exceeds a first preset number of times when an abnormal situation of a first preset fuel amount occurs continuously; S8. In response to the vehicle entering a driving state, the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle at each detection moment is calculated; when an abnormal situation in which the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle exceeds a second preset fuel amount and occurs consecutively for a second preset number of times, and the difference between the real-time calibration value of the fuel gauge of the vehicle and the remaining fuel value of the vehicle shows an upward trend with the change of the detection moment, it is determined that the vehicle is in a slow oil leakage state.

7. An oil quantity calibration device, characterized in that: At least: A recording module, at least used for recording a first fuel gauge display value and a first fuel level value in response to the vehicle entering a stationary state; a detection module, at least used for detecting a second fuel level value after the vehicle remains in the stationary state for a preset time; The collection module is at least used to continuously collect a preset number of oil resistance values ​​after the preset time to determine whether the oil quantity change trend corresponding to the preset number of oil resistance values ​​is an upward trend; The strategy trigger module is used to trigger the static refueling calibration strategy at least when the difference between the second oil level value and the first oil gauge display value is not less than a first preset value, the difference between the second oil level value and the first oil level value is not less than a second preset value, and the oil level change trend after the preset time is an upward trend, so as to realize real-time calibration of the oil gauge display value in a static refueling scenario.

8. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the oil quantity calibration method according to any one of claims 1 to 6 are executed.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the oil quantity calibration method described in any one of claims 1 to 6 is implemented.

10. A vehicle, characterized in that: At least the oil quantity calibration device as claimed in claim 7 is integrated.

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