Abstract
This paper presents a new on-line measurement method of injection rate based on the injector inlet pressure. The Riemann wave theory is applied to the fuel system, and the mathematical relationship of injection rate (G) and pressure (P) under single Riemann wave is put forward. The correction algorithm of the interference wave and the decoupling method of the superposition wave are proposed, which improves the accuracy of the algorithm and realizes the calculation of the fuel injection rate during the long injection energizing time. The identification algorithm of the needle maximum upstroke position moment and the needle starting downstroke moment are proposed and taken as the key time characteristics of the injection process. Compared to the experiments, the errors of the injection mass by this method were within 3%, and the fitting goodness of injection rate curve exceeded 0.93, proving quite good precision for the method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
