Method for judging abnormal change of fuel quantity based on fuel tank liquid level monitoring

Abstract

The invention discloses a method for judging abnormal change of fuel quantity based on fuel tank liquid level monitoring, which comprises the following steps of reading the liquid level of a fuel tankin real time by using an existing fuel tank oil level sensor of a vehicle, analyzing the fluctuation of the liquid level, and extracting abnormal fluctuation from the liquid level by using an algorithm to judge the abnormal change of the fuel quantity. The liquid level fluctuation in the fuel tank can be monitored in real time, and in the data processing stage after data extraction, the stabilityof the data can be checked firstly, and the data with large errors can be removed, so that the interference of non-experimental factors can be eliminated, and the abnormal event of the fuel tank canbe judged. The method also has the remarkable advantages that the control is accurate, no equipment is added, the change of the vehicle oil quantity can be monitored only through the fluctuation of the liquid level of the fuel tank, and the system can prompt customers in time.

Description

technical field [0001] The invention belongs to the liquid level monitoring technology of the automobile fuel tank, and in particular relates to a method for judging the abnormal change of the fuel quantity based on the liquid level monitoring of the fuel tank. Background technique [0002] As the power source of automobiles, automobile fuel is externalized as a fuel gauge on the dial of the automobile at the beginning of the appearance of the automobile to remind the driver of the mileage that the vehicle can still travel, but its display readings have large errors and poor accuracy , it is difficult to use it as an accurate parameter for technical evaluation. [0003] In some cases, the remote cloud platform needs to analyze, judge and record the refueling events of the vehicle or the abnormal oil discharge event of the fuel tank through the change of the fuel tank level of the vehicle, so as to ensure the healthy use of the vehicle. [0004] In the prior art, two methods...

AI Technical Summary

Problems solved by technology

[0005] Both of these two methods require the installation of redundant parts other than the vehicle itself, and both require the fuel tank to be rebuilt after the fuel is evacuated, and the working process is cumbersome

When testing commercial vehicles, because the gasoline tank usually has a large capacity, when the fuel volume does not change much, the displacement on the liquid level will be smaller and more difficult to detect

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