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Trend evaluation-based calculation method for fuel gauge

A calculation method and technology of fuel gauges, applied in engine lubrication, liquid/fluid solid measurement, instruments, etc., can solve problems such as failure to respond in time, fluctuations, fluctuations in fuel gauge pointer data, etc., to prevent failure to respond in time and fluctuations Effect

Inactive Publication Date: 2011-09-28
SHANGHAI DELCO ELECTRONICS & INSTR
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a fuel gauge calculation method based on trend assessment, which divides the fuel gauge status into normal status and critical status according to the changing trend of vehicle ignition status and fuel quantity data, and adopts different processing methods for different statuses The present invention not only solves the problem that the pointer of the fuel gauge fluctuates due to the fluctuation of fuel sensor data, but also prevents the problem that the fuel gauge cannot respond in time when the fuel quantity changes rapidly

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  • Trend evaluation-based calculation method for fuel gauge
  • Trend evaluation-based calculation method for fuel gauge

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[0029] According to the shortcomings in the prior art, when the fuel fluctuates, although the fuel value measured by the fuel quantity sensor is inconsistent with the actual fuel value, overall, the fuel value measured by the fuel quantity sensor is around the actual The fuel value fluctuates up and down, therefore, the present invention uses the average value of measured fuel gauge data within a period of time as the basis for the displayed current fuel quantity. Although replacing the real-time value with the average value improves the calculation accuracy of the fuel quantity, there may still be a large deviation between the calculated fuel quantity and the actual fuel quantity. In order to prevent the situation that the fuel gauge cannot respond in time when the fuel quantity changes rapidly, at the same time, according to the state of the ignition and the change trend of the fuel quantity, the state of the fuel gauge is divided into: normal state and critical state. For di...

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Abstract

The invention relates to a trend evaluation-based calculation method for a fuel gauge, which comprises the following steps: judging whether the current state of the fuel gauge is a normal state or a critical state according to the state of the ignition of an automobile and the change trend of the fuel quantity; and then, for different states of the fuel gauge, calculating the current fuel quantity by different processing methods, and indicating corresponding speeds through a pointer of the fuel gauge. The method provided by the invention not only solves the problem that the pointer of the fuel gauge fluctuates due to the fluctuation of data of a fuel sensor, but also prevents the problem that the fuel gauge cannot timely give a response under the special condition that the fuel quantity is rapidly changed.

Description

technical field [0001] The invention relates to a calculation method for an automobile fuel gauge, in particular to a calculation method for a fuel gauge based on trend evaluation. Background technique [0002] The fuel gauge is an important parameter to detect the state of the fuel in the fuel tank of the car. It is used to indicate the fuel in the fuel tank. The traditional calculation method of the fuel gauge is to display the current state of the fuel through the fuel value measured by the fuel sensor. However, due to The fuel quantity sensor is not accurate in measuring the fuel quantity in the fuel tank. For example, when driving on a rough road, the fuel in the fuel tank will fluctuate with the fluctuation of the vehicle, causing the data calculated by the fuel quantity sensor to fluctuate, thus causing the fuel gauge pointer to fluctuate , the indicated fuel quantity is incorrect. [0003] Although the fluctuation of the fuel gauge pointer can be reduced to a certai...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/00
Inventor 杨毅郑宏伟臧铁生
Owner SHANGHAI DELCO ELECTRONICS & INSTR
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