A calculation method for the accuracy of the remaining fuel amount in a motorcycle instrument

Abstract

The present invention discloses a calculation method for calibrating the accuracy of the remaining fuel of a motorcycle instrument, which is characterized by comprising the following steps: starting to power on; obtaining the measured remaining fuel through a sensor; adjusting the fuel mathematical model according to the established mathematical model and the average fuel consumption and mileage parameters provided by the user, thereby calibrating the remaining fuel; judging whether the motorcycle is started, if so, entering the step of calculating the remaining fuel according to the injection amount; comparing the calculated remaining fuel with the remaining fuel measured by the sensor to see if it is greater than 500 ml, if so, judging whether the calculated remaining fuel is closer according to the established calculation model, if not, using the calculated value to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument; if so, using the value of the sensor to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument. The beneficial effects of the present invention include: the motorcycle instrument more accurately feedbacks the remaining fuel in the fuel tank.

Description

Technical Field

[0001] The invention relates to the technical field of motorcycle oil quantity calibration, and in particular to a method for calculating the accuracy of motorcycle instrumentation in correcting the remaining oil quantity. Background Art

[0002] With the widespread use of motorcycles in the field of transportation, it is crucial for riders to accurately understand the remaining fuel level of the vehicle. The fuel supply system of a motorcycle directly affects the performance and endurance of the vehicle. Accurate remaining fuel display can help riders plan their trips reasonably and avoid the inconvenience and danger caused by running out of fuel.

[0003] In the design of motorcycles, the instrument is an important component that transmits key information to the rider. The accuracy of the remaining fuel display is directly related to the rider's judgment of fuel consumption. However, due to the complexity of the motorcycle fuel system and the influence of various factors, it is not easy to achieve accurate remaining fuel measurement and display.

[0004] Defects and shortcomings of the existing technology:

[0005] 1. Limited sensor accuracy: Existing fuel level sensors often have certain errors when measuring fuel levels. The detection of fuel level may be interfered by factors such as oil temperature, oil pressure, and vehicle tilt angle, resulting in inaccurate measurement results.

[0006] 2. Simple calculation model: The algorithm used to calculate the remaining fuel in current motorcycle instruments is usually relatively simple and fails to fully consider the impact of various actual driving conditions on fuel consumption, such as road conditions, driving habits, load changes, etc.

[0007] 3. Lack of real-time calibration: Many motorcycle instrument systems are unable to perform real-time self-calibration during vehicle use. As time goes by and components wear out, the accuracy of the oil level display will gradually decrease.

[0008] 4. Poor adaptability: The existing remaining fuel calculation method has poor universality for motorcycles of different models and displacements, and it is difficult to meet the diverse needs of vehicle models.

[0009] 5. Not considering the shape of the fuel tank: The shapes of motorcycle fuel tanks vary, and the existing technology often does not fully consider the impact of the special shape of the fuel tank on the fuel measurement when calculating the remaining fuel volume, resulting in a deviation between the displayed result and the actual fuel volume. Summary of the invention

[0010] In view of the above-mentioned deficiencies in the prior art, the present invention provides a calculation method for calibrating the accuracy of the remaining fuel amount of a motorcycle instrument, which can accurately display the remaining fuel amount in the fuel tank on the instrument.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] A method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument, characterized in that it comprises the following steps:

[0013] S1, start powering on;

[0014] S2, obtaining the measured remaining oil volume through the sensor;

[0015] S3, establishing a mathematical model according to the shape, size, temperature and weather parameters of the fuel tank, and adjusting the fuel mathematical model according to the average fuel consumption and mileage parameters provided by the user, so as to calibrate the remaining fuel amount;

[0016] S4, determine whether the motorcycle is started, if yes, go to step S5, if no, return to step S2;

[0017] S5. Calculate the remaining fuel amount according to the fuel injection amount;

[0018] S6, compare the calculated remaining fuel amount with the remaining fuel amount measured by the sensor to see if it is greater than 500 ml. If so, proceed to step S7; otherwise, proceed to step S8.1;

[0019] S7, judging whether the calculated remaining oil volume is closer according to the established calculation model, if so, proceed to step S8.1, if not, proceed to step S8.2,

[0020] S8.1. Use the calculated values ​​to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument;

[0021] S8.2. Use the sensor values ​​to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument.

[0022] Furthermore, the sensor includes a liquid level sensor arranged in the oil tank and a pressure sensor arranged near the oil pump outlet or the fuel injection nozzle. The sensor collects liquid level data and pressure data and transmits them to the controller.

[0023] Furthermore, the establishment of the calculation model includes constructing a fuel consumption calculation model based on historical experimental data and machine learning algorithms, and using a large amount of actual driving data to train and verify the model to improve the calculation accuracy;

[0024] Model based on the relationship between pressure and altitude:

[0025] Assuming that the oil in the oil tank is an incompressible fluid, according to the principle of fluid statics, there is the following relationship between the oil level h and the pressure P in the oil tank: P = ρgh, where ρ is the density of the oil and g is the acceleration of gravity. By measuring the pressure in the oil tank, the oil level h can be calculated. Assuming the bottom area of ​​the oil tank is s, the oil volume: V = sh;

[0026] Model modification to take temperature effects into account:

[0027] The volume of oil will change with temperature. According to the thermal expansion coefficient α, the temperature correction formula for the oil volume is:

[0028] V t =V(1+αΔT),

[0029] Where V t is the corrected oil volume, V is the uncorrected oil volume, and △T is the temperature change;

[0030] Dynamically adjust the model:

[0031] Acceleration and reduction correction: when accelerating and decelerating, the oil will slosh in the tank. The acceleration sensor measures the magnitude and direction of the acceleration to adjust the oil volume calculation.

[0032] Tilt correction: When the motorcycle tilts, the oil level will also tilt, causing the oil level measured by the sensor to be θ, and the tilt angle of the motorcycle is measured by the inclination sensor. The calculation formula is: V θ =V0×cosθ, where V θ is the oil volume after tilting, V0 is the calculated oil volume;

[0033] Furthermore, the motorcycle instrument has an interactive interface, which accepts data input by the rider on actual refueling amount, cruising range, and average fuel consumption, and the controller automatically recalibrates the model according to the formula of cruising range = remaining fuel amount ÷ average fuel consumption.

[0034] Furthermore, when the motorcycle has a speed, the calculation model is calibrated online every 60 minutes or every 100 kilometers of mileage according to the deviation between the newly collected data and the model calculation result.

[0035] The beneficial effects of the present invention include: the motorcycle instrument can more accurately feedback the remaining oil amount in the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a work flow chart of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0038] A method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument, comprising: Figure 1 The process shown.

[0039] When the motorcycle is powered on, the oil volume corresponding to the resistance value is obtained through a high-precision sensor; secondly, according to the specific geometric shape and size of the fuel tank, an accurate mathematical model is established to further calibrate the oil volume; then, considering the influence of oil temperature on oil density, a temperature compensation coefficient is introduced to correct the volume value again to obtain a more accurate oil volume; finally, the calculation result is dynamically adjusted based on the vehicle's operating status, such as pitch angle, tilt angle, weather, temperature and other factors, so as to obtain the corrected total remaining oil volume in the fuel tank;

[0040] When the motorcycle is electrically started, the remaining fuel amount is calculated based on the amount of fuel injected, and then compared with the remaining fuel amount measured by the sensor. If the difference between the calculated remaining fuel amount and the remaining fuel amount measured by the sensor is more than 500 ml, the established calculation model will be used to determine which one is closer to the accurate value, and then numerical calibration will be performed to achieve the purpose of remaining fuel calculation calibration.

[0041] The following are the conditions for implementing the present invention:

[0042] 1. Sensor installation and data collection

[0043] 1. Choose a high-precision level sensor and install it in a suitable position inside the motorcycle fuel tank to ensure that the change of fuel level can be accurately detected. At the same time, install a pressure sensor at the key part of the fuel system, near the fuel pump outlet or the fuel injector, to obtain fuel pressure data.

[0044] 2. During the operation of the motorcycle, the sensor collects the liquid level and pressure data in real time and transmits it to the controller at a certain frequency.

[0045] 2. Data Preprocessing

[0046] 1. After receiving the sensor data, the controller first performs data filtering and denoising to remove abnormal values ​​caused by external interference or sensor errors.

[0047] 2. Calibrate the liquid level data and correct the liquid level measurement value according to the established mathematical model to eliminate the influence of factors such as motorcycle tilt, acceleration, oil temperature, etc. on the fuel volume.

[0048] 3. Establishing the computational model

[0049] 1. Based on historical experimental data and machine learning algorithms, a fuel consumption calculation model is constructed. A large amount of actual driving data is used to train and verify the model, and the model parameters are continuously optimized to improve the calculation accuracy.

[0050] 2. Model based on the relationship between pressure and altitude:

[0051] Assuming that the oil in the tank is an incompressible fluid, according to the principle of fluid statics, there is the following relationship between the oil level h and the pressure P in the tank: P = ρgh. Where ρ is the density of the oil and g is the acceleration of gravity. By measuring the pressure in the tank, the oil level h can be calculated. Assuming the bottom area of ​​the tank is s, the oil volume: V = sh.

[0052] 3. Model modification considering temperature influence:

[0053] The volume of oil will change with temperature. According to the thermal expansion coefficient α, the temperature correction formula for oil volume is: V t =V(1+αΔT), where Vt is the corrected oil volume, V is the uncorrected oil volume, and ΔT is the temperature change.

[0054] 4. Dynamically adjust the model:

[0055] (1) Impact of acceleration and deceleration: When a motorcycle accelerates or decelerates, the oil will slosh in the tank, affecting the measurement of the oil level. By installing an acceleration sensor, the oil volume calculation can be adjusted according to the magnitude and direction of the acceleration. For example, when accelerating, the oil will flow backwards, causing the oil level measurement to be higher. In this case, the oil volume calculation result can be appropriately reduced according to the magnitude of the acceleration.

[0056] (2) Tilt effect: When the motorcycle tilts, the oil level will also tilt, resulting in inaccurate oil level measurement by the sensor. You can install a tilt sensor to measure the tilt angle θ of the motorcycle, and then correct the oil level calculation based on the tilt angle. Assuming that the oil level in the horizontal state of the fuel tank is V0, the oil level after tilting can be calculated using the following formula: V θ =V0×cosθ.

[0057] 4. Real-time calibration

[0058] 1. When the vehicle speed is available, the calculation model is calibrated online every 60 minutes or every 100 kilometers of mileage based on the deviation between the newly collected data and the model calculation results.

[0059] 2. When the motorcycle is refueling, the actual amount of fuel is compared with the remaining fuel amount calculated by the model, and the model parameters are corrected.

[0060] 5. Fuel tank shape compensation

[0061] 1. Build a 3D model by accurately measuring the internal shape of the fuel tank. Convert the liquid level measured by the level sensor into the corresponding fuel volume, taking into account the volume differences in different parts of the tank.

[0062] 2. According to the tilt angle of the fuel tank (obtained by a gyroscope or other angle sensor), the calculation of the fuel volume is adjusted in real time to ensure that the remaining fuel volume is accurately calculated when the vehicle is tilted. Assume that the shape of the fuel tank is a regular geometric body, such as a cuboid, with a length of a, a width of b, and a height of h. When the motorcycle is tilted at an angle of θ, consider the volume element dv of the oil in a small height interval [y, y+dy]. In the horizontal state, the volume of this element is: d0 = abdy.

[0063] When the tilt angle is θ, the projection height of this microelement perpendicular to the tilt direction becomes ycosθ, and the volume of the microelement is dV0=ab×ycosθdy. Then the oil volume in the entire tilt state can be obtained by integrating the volume of the microelement within the range of the oil tank height:

[0064] Where abh is the total volume of the oil tank in a horizontal state, so the oil volume in a horizontal state V0 = abh. It can also be written as V θ =V0cosθ.

[0065] 6. User Interaction and Feedback

[0066] 1. The remaining fuel, fuel consumption rate, average fuel consumption and other information are displayed on the motorcycle instrument, and a graphical display is provided to facilitate the rider to intuitively understand the fuel status.

[0067] 2. Set up a user feedback interface where riders can manually input information such as actual fueling amount, cruising range, average fuel consumption, etc. When there is a large deviation between the information entered by the user and the calculated result, the system will automatically recalibrate the model according to the formula of cruising range = remaining fuel ÷ average fuel consumption.

[0068] 7. System Update and Optimization

[0069] 1. Regularly upload the motorcycle’s driving data to Cyclone’s cloud server for big data analysis.

[0070] 2. Based on the data analysis results, the calculation model is remotely updated and optimized to adapt to different usage environments and vehicle aging conditions.

[0071] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for calculating the accuracy of the remaining fuel volume of a motorcycle instrument, characterized in that: The following steps are included: S1, start powering on; S2, obtaining the measured remaining oil volume through the sensor; S3, establishing a mathematical model according to the shape, size, temperature and weather parameters of the fuel tank, and adjusting the fuel mathematical model according to the average fuel consumption and mileage parameters provided by the user, so as to calibrate the remaining fuel amount; S4, determine whether the motorcycle is started, if yes, go to step S5, if no, return to step S2; S5. Calculate the remaining fuel amount according to the injection amount; S6, compare the calculated remaining fuel amount with the remaining fuel amount measured by the sensor to see if it is greater than 500 ml. If so, proceed to step S7; otherwise, proceed to step S8.1; S7, judging whether the calculated remaining oil volume is closer according to the established calculation model, if so, proceed to step S8.1, if not, proceed to step S8.2, S8.

1. Use the calculated values ​​to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument; S8.

2. Use the sensor values ​​to obtain the remaining fuel, average fuel consumption, and cruising range of the instrument.

2. The method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument according to claim 1, characterized in that: The sensors include a liquid level sensor disposed in the oil tank and a pressure sensor disposed near the oil pump outlet or the fuel injection nozzle. The sensors collect liquid level data and pressure data and transmit them to the controller.

3. The method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument according to claim 2, characterized in that: Establishing the calculation model includes building a fuel consumption calculation model based on historical experimental data and machine learning algorithms, and using a large amount of actual driving data to train and verify the model to improve the calculation accuracy; Model based on the relationship between pressure and altitude: Assuming that the oil in the oil tank is an incompressible fluid, according to the principle of fluid statics, there is the following relationship between the oil level h and the pressure P in the oil tank: P = ρgh, where ρ is the density of the oil and g is the acceleration of gravity. By measuring the pressure in the oil tank, the oil level h can be calculated. Assuming the bottom area of ​​the oil tank is s, the oil volume: V = sh; Model modification to take temperature effects into account: The volume of oil will change with temperature. According to the thermal expansion coefficient α, the temperature correction formula for the oil volume is: V1+αΔT Where V t is the corrected oil volume, V is the uncorrected oil volume, and △T is the temperature change; Dynamically adjust the model: Acceleration and reduction correction: when accelerating and decelerating, the oil will slosh in the tank. The acceleration sensor measures the magnitude and direction of the acceleration to adjust the oil volume calculation. Tilt correction: When the motorcycle tilts, the oil level will also tilt, causing the oil level measured by the sensor to be θ, and the tilt angle of the motorcycle is measured by the inclination sensor. The calculation formula is: V θ =V0×cosθ, where V θ is the oil volume after tilting, and V0 is the calculated oil volume.

4. The method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument according to claim 3, characterized in that: The motorcycle instrument has an interactive interface, which accepts data of actual fuel quantity, cruising range, and average fuel consumption input by the rider, and the controller automatically recalibrates the model according to the formula of cruising range = remaining fuel quantity ÷ average fuel consumption.

5. The method for calculating the accuracy of the remaining fuel amount of a motorcycle instrument according to claim 3, characterized in that: When the motorcycle is running at a speed, the calculation model is calibrated online every 60 minutes or every 100 kilometers of driving distance according to the deviation between the newly collected data and the model calculation results.

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