Calibration method, device, storage medium and electronic equipment of vehicle fuel gauge

A calibration method and a calibration device technology, applied in the field of vehicle instrumentation, can solve the problems of misjudgment of vehicle refueling or oil leakage, inability to accurately display the remaining fuel volume, etc., and achieve the effect of avoiding adverse effects

Active Publication Date: 2022-02-22
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology

[0003] The invention provides a calibration method, device, storage medium and electronic equipment for a vehicle fuel gauge to solve or partially solve the problem that when a car is parked on a slope, the fuel quantity displayed by the fuel gauge is affected by the slope and cannot be accurately displayed. The current remaining amount of fuel, and the technical problem that will cause the vehicle personnel to misjudge the refueling or oil leakage of the vehicle

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  • Calibration method, device, storage medium and electronic equipment of vehicle fuel gauge
  • Calibration method, device, storage medium and electronic equipment of vehicle fuel gauge
  • Calibration method, device, storage medium and electronic equipment of vehicle fuel gauge

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Embodiment Construction

[0043] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0044] figure 1 A schematic diagram of the fuel gauge and the fuel gauge is given. According to the display principle of the vehicle fuel gauge, when the power is initially turned on, the fuel gauge is detected by the resistance value R detected by the fuel gauge. 0 , according to the static calibration result look-up table, the corresponding oil volume is L 0 , and indicate the corresponding position; and when the vehicle is powered off after driving for a period of time, the control system is based on: The amount of fuel injected by the engine is used to calculate the remaining fuel in the fuel tank, and the L t Displayed in the fuel gauge; after power on again, re-read the resistan...

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Abstract

The invention discloses a method for calibrating a fuel gauge of a vehicle, which includes: obtaining the maximum resistance change value of a fuel gauge sensor when the vehicle is on a flat road and at a preset slope; determining the remaining fuel volume of the vehicle when the vehicle is stopped and powered off Corresponding first resistance value; when the vehicle is powered on, obtain the second resistance value actually measured by the fuel quantity sensor; determine the difference between the absolute value of the difference between the first resistance value and the second resistance value and the maximum resistance change value The size relationship between: when the absolute value of the difference is greater than the maximum value of the resistance change, the fuel gauge of the control vehicle will display the oil quantity value corresponding to the second resistance value; when the absolute value of the difference is less than or equal to the maximum value of the resistance change, the control vehicle will The fuel gauge displays the fuel quantity value corresponding to the first resistance value; the above scheme overcomes the adverse effect of the slope on the fuel gauge display when parking on a slope; at the same time, it avoids the fuel gauge from misrepresenting it when there is an oil leakage event in the fuel tank. It is judged that parking on a slope causes the fuel gauge to display an error.

Description

technical field [0001] The present application relates to the technical field of vehicle instrumentation, in particular to a calibration method, device, storage medium and electronic equipment for a vehicle fuel gauge. Background technique [0002] When the vehicle is turned on and powered on, the fuel quantity displayed on the vehicle fuel gauge is obtained after conversion based on the resistance value measured by the fuel level sensor in the fuel tank to the remaining fuel quantity. However, when the vehicle is on a level road or a slope road, due to the change of the slope, the fuel tank will form a certain inclination angle, the oil level in the fuel tank will change accordingly, and the actual resistance value detected by the fuel sensor will also change with the slope, so the same The amount of remaining oil will cause differences in the amount of oil displayed on the oil gauge on different slopes. The problem that produces like this is: the person on board can't acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/20
CPCG01F25/20
Inventor 蔡艳波徐萌肖美临蔡浩王一婷
Owner DONGFENG MOTOR CORP HUBEI
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