A method for air-fuel ratio cooperative control of a hydrogen-ammonia dual-fuel engine
By employing a three-layer control architecture and a dynamic allocation strategy using an adaptive PID controller, the transient response lag and insufficient control precision issues of the hydrogen-ammonia dual-fuel engine were resolved, enabling rapid and precise coordinated control of the air-fuel ratio and improving the overall performance and emission quality of the engine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JILIN UNIVERSITY
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies in hydrogen-ammonia dual-fuel engines suffer from problems such as transient response lag, insufficient control precision, and poor adaptability to operating conditions, resulting in low combustion efficiency and non-compliance with emission standards.
A three-layer control architecture is adopted, including feedforward reference, feedback correction and dynamic allocation strategy. Combined with an adaptive PID controller and a wide-range oxygen sensor, the injection quantity of hydrogen and ammonia is dynamically allocated to achieve fast and accurate coordinated control of air-fuel ratio.
It improves the engine's response performance under transient conditions and the control accuracy under all operating conditions, enhances the system's robustness and reliability, and ensures combustion stability and emission compliance with standards.
Smart Images
Figure CN122407382A_ABST