Vehicle fuel supply system, control method thereof, vehicle, and storage medium

By introducing solenoid valves and pressure detection components into the fuel system, fuel circulation cleaning and filter regeneration are achieved, solving the problem of nylon pipe flocculent blockage of fuel injectors, ensuring stable engine operation, extending filter life, and reducing maintenance costs.

CN122407418APending Publication Date: 2026-07-17CHERY INTELLIGENT VEHICLE TECH (HEFEI) CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHERY INTELLIGENT VEHICLE TECH (HEFEI) CO LTD
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In gasoline or hybrid vehicles, after prolonged parking, fibrous material in the nylon tubing can clog the fuel injectors, causing abnormal engine operation. Current technology lacks effective preventative measures.

Method used

By installing a normally open solenoid valve between the fuel pump and the filter and a first normally closed solenoid valve between the engine and the fuel pump, combined with a pressure detection component and an engine controller, fuel circulation cleaning is achieved, flocculent matter in the nylon line is removed, and the filter is backflushed and regenerated when necessary.

Benefits of technology

It effectively prevents flocculent matter from entering the fuel injector, ensuring normal engine operation, extending the service life of the filter, reducing maintenance costs, and improving user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122407418A_ABST
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Abstract

The application discloses a vehicle fuel supply system and a control method thereof, a vehicle and a storage medium, and relates to the technical field of vehicles. The system comprises a fuel tank, a fuel pump, an engine, a filter, a pressure detection assembly, an engine controller, a normally open electromagnetic valve and a first normally closed electromagnetic valve. The engine controller is configured to receive a vehicle power-on instruction, control the first normally closed electromagnetic valve to be turned on based on the vehicle power-on instruction, and control the fuel pump to be turned on. The pressure detection assembly is configured to detect a pressure difference between a first end and a second end of the filter and send the pressure difference to the engine controller. The engine controller is configured to control the fuel pump based on the pressure difference. In this way, the flocculation can be prevented from directly entering the fuel injector when the engine is started, the fuel injector can be effectively prevented from being blocked, and the normal and stable operation of the engine can be ensured.
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