A Control Method of Remaining Fuel Quantity Display Based on Road Slope Signal

A technology of remaining oil quantity and remaining fuel oil, which is used in measuring devices, liquid level indicators, engine lubrication, etc., can solve the problem of inaccurate calculation of remaining oil quantity, and achieve the effect of improving the accuracy of calculation.

Active Publication Date: 2020-08-21
CHINA FIRST AUTOMOBILE
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  • Abstract
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Problems solved by technology

[0010] In order to solve the inaccurate calculation of the remaining fuel quantity caused by the above two strategies strongly relying on the resistance signal of the fuel sensor, the present invention introduces the slope signal of the vehicle driving road to calculate the remaining fuel quantity of the fuel tank to improve the calculation efficiency of the remaining fuel quantity. Accuracy and Stability

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  • A Control Method of Remaining Fuel Quantity Display Based on Road Slope Signal
  • A Control Method of Remaining Fuel Quantity Display Based on Road Slope Signal
  • A Control Method of Remaining Fuel Quantity Display Based on Road Slope Signal

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Embodiment Construction

[0040] In this embodiment, a method for measuring and calculating the remaining fuel amount based on the road gradient signal, the specific steps are as follows:

[0041] 1) Calibration: First, determine a calibration starting fuel quantity, adjust the two angles of the vehicle AX and AY one by one, and record the resistance value of the fuel sensor for this fuel quantity value at different slope values; then, change the actual fuel quantity in the fuel tank Repeat the calibration operation; get the calibration results of each fuel value at each angle; where AX represents the vehicle's X-direction (longitudinal) angle signal; AY represents the vehicle's Y-direction (lateral) angle signal;

[0042] 2) When the vehicle is started, it first enters the standby mode. At this time, the ignition switch of the vehicle is turned off and the fuel gauge is in a wake-up state; through the gradient signal, the fuel resistance signal and the pre-calibrated gradient signal, the fuel resistance and...

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Abstract

The invention discloses a residual fuel quantity display control method based on a road grade signal, and belongs to the technical field of automobile instrument and apparatus algorithms. In view of the problem that the fuel display may be inaccurate when a vehicle is driving for a long time on a slope road or accelerating or decelerating on the slope road, a grade signal is imported into a fuel gauge algorithm in the residual fuel quantity display control method disclosed by the invention, meanwhile the residual fuel quantity of a fuel tank is accurately calculated in combination with a resistance signal of a fuel sensor and the instantaneous fuel consumption information of an engine, so that the defects of the traditional fuel gauge algorithm are avoided, the residual fuel quantity display is more accurate, and better driving experience is provided for users.

Description

Technical field [0001] The invention belongs to the field of automobile instrumentation algorithms, and relates to a method for measuring and calculating a new type of automobile fuel quantity based on a road gradient signal. Background technique [0002] When a vehicle is running, the fuel gauge is an important device and parameter in the user's daily use. During use, the inaccurate fuel display will make the user experience poor. The current fuel gauge algorithm has two strategies: [0003] 1) Strategy based on fuel sensor resistance [0004] By obtaining the resistance value information of the fuel sensor, the remaining fuel quantity information in the fuel tank can be obtained. [0005] Disadvantages: It is completely dependent on the resistance value information of the fuel sensor. When idling / driving on a slope for a long time or refueling on a slope, the true amount of remaining fuel in the fuel tank cannot be accurately calculated. [0006] 2) Strategy based on fuel resistance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/00
CPCG01F9/00
Inventor 王淑琴
Owner CHINA FIRST AUTOMOBILE
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