Invention Grant
US09157389B2 Apparatus of estimating fuel state 有权
估计燃料状态的装置

Apparatus of estimating fuel state
Abstract:
An apparatus extracts a main waveform component and a branch waveform component from a pressure waveform detected by a fuel pressure sensor. The main waveform component is caused by pressure change traveling in a main passage. The branch waveform component is caused by pressure change traveling in a branch passage. The apparatus calculates traveling speeds based on the components. Then, the apparatus estimates a main passage temperature based on a detected value of the fuel temperature sensor, the traveling speeds, the fuel pressure waveform and an average pressure.
Public/Granted literature
Information query
Patent Agency Ranking
0/0