Fuel leakage detection method, system, electronic device, storage medium and product

By acquiring the timing and change information of fuel tank pressure decay under target conditions, and combining integral processing and feature parameter matching, the problem of low accuracy in fuel leak detection is solved, and accurate detection without engine idling is achieved.

CN122383532APending Publication Date: 2026-07-14GUIZHOU GEELY ENGINE CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUIZHOU GEELY ENGINE CO LTD
Filing Date
2026-05-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing technologies for fuel leak detection have low accuracy, especially when the engine is not idling, and the detection methods are greatly affected by engine operating conditions and environmental factors.

Method used

Under the target conditions, the air pump, carbon canister vent valve, and carbon canister solenoid valve are closed, while the fuel tank isolation valve is open. Fuel leak detection is performed by acquiring fuel tank pressure decay timing information and pressure change information, and by using methods such as fuel tank pressure integral value and characteristic parameter matching.

Benefits of technology

It improves the accuracy and reliability of fuel leak detection without relying on engine idling speed, reduces detection errors, adapts to different operating conditions, and enhances detection efficiency and precision.

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Abstract

The embodiment of the application discloses a kind of fuel leakage detection method, system, electronic equipment, storage medium and product, it is related to vehicle technical field, method includes: in response to fuel leakage detection instruction, the fuel tank pressure decay timing information of vehicle in target state is acquired, and the fuel tank pressure change information of vehicle in target state;According to fuel tank pressure decay timing information and fuel tank pressure change information, determine the fuel leakage detection result of vehicle;Wherein, target state is: the air pump of vehicle, carbon can vent valve, carbon can solenoid valve are all closed, and the fuel tank isolation valve of vehicle is opened.This embodiment of the application does not need to rely on engine idling, by acquiring fuel tank pressure decay timing information and fuel tank pressure change information, accurate detection of vehicle fuel leakage can be realized.
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