Real-time high robustness concentration detection system and calibration method for flexible fuel
By combining a coaxial electrode sensing unit, a multi-channel digital capacitor conditioning module, and a temperature synchronization measurement module with a programmable frequency hopping and two-dimensional fusion algorithm, the problems of anti-interference, accuracy, and adaptability in flexible fuel concentration detection are solved, achieving highly robust and high-precision fuel concentration detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MINYUAN SENSING TECH CO LTD
- Filing Date
- 2026-04-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing flexible fuel concentration detection technologies suffer from weak electromagnetic interference resistance, fixed detection sensitivity, narrow fuel compatibility range, and insufficient temperature compensation accuracy. This results in poor signal stability, inconsistent accuracy, and high cost for sensors in complex automotive electromagnetic environments.
Employing a coaxial electrode sensing unit, a multi-channel digital capacitor conditioning module, a temperature synchronization measurement module, and a data processing module, combined with programmable frequency hopping, multi-channel reference calibration, and a capacitance-temperature two-dimensional fusion algorithm, real-time, highly robust concentration detection is achieved.
It significantly improves the stability and accuracy of measurement signals, adapts to different fuel types, reduces sensor costs, and ensures personnel safety.
Smart Images
Figure CN122409768A_ABST