Hydrogen system, method of filling control, controller and vehicle
By employing methods such as vacuuming, nitrogen purging and pressurization, and hydrogen refueling, the problems of time and hydrogen waste associated with hydrogen-nitrogen replacement methods have been solved, achieving efficient hydrogen refueling for the hydrogen system.
CN122305381APending Publication Date: 2026-06-30BEIQI FOTON MOTOR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIQI FOTON MOTOR CO LTD
- Filing Date
- 2024-12-27
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing hydrogen-nitrogen replacement methods require multiple hydrogen refueling and exhaust circulation processes, resulting in wasted labor time and hydrogen.
Method used
By employing a method of vacuuming, nitrogen purging and pressure maintenance, and hydrogen refueling, the target hydrogen purity of the hydrogen system can be achieved through a single hydrogen refueling, thus shortening the refueling control cycle.
Benefits of technology
This achieved the target hydrogen purity in the hydrogen system, shortened the refueling control cycle, and reduced working hours and hydrogen waste.
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Smart Images
Figure CN122305381A_ABST
Abstract
This invention discloses a hydrogen system, its refueling control method, controller, and vehicle. The hydrogen system includes system pipelines and hydrogen cylinders. The method includes: evacuating the system pipelines and hydrogen cylinders in response to a refueling control command; purging the system pipelines with nitrogen to maintain pressure when the gas pressure in the system pipelines and hydrogen cylinders drops to a first target pressure, thereby performing a pressure maintenance test; and refueling the system pipelines and hydrogen cylinders with hydrogen based on a preset third target pressure when the pressure maintenance test results confirm that there is no leakage in the system pipelines and the gas pressure in the system pipelines drops to a preset second target pressure. This method sequentially performs evacuation, nitrogen purging, and hydrogen refueling on the hydrogen system. Since a single hydrogen refueling operation can achieve the target hydrogen purity, it shortens the refueling control cycle time and solves the technical problems of wasted labor time and hydrogen waste in related technologies.
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