公开(公告)号：WO2014107487A1

公开(公告)日：2014-07-10

申请号：PCT/US2014/010033

申请日：2014-01-02

Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTA

Inventor： SUN, Zongxuan ,  WU, Chienshin

IPC: F02M61/10

CPC classification number: F02M63/0015 ,  F02M45/12 ,  F02M47/025 ,  F02M47/027 ,  F02M61/10 ,  F02M61/161 ,  F02M63/0068 ,  F02M63/0275 ,  F02M2547/001 ,  F02M2547/008

Abstract: An injector is designed to provide continuously variable injection rate shaping. With a hydro-mechanical internal feedback mechanism, injector needle position can be determined by controlling a feedback valve's on/off timing. According to the needle position, an injection needle valve opening can be controlled, and then the injection flow rate can be delivered proportionally. Also in accordance with the present invention a CRDI systems are provided including injectors of the present invention, wherein results demonstrate that injector designs of the present invention not only achieve rate shaping capability but also solve the above-noted problems of the current CRDI system. Finally, an iterative learning controller has also been developed to track the desired injection rate, and an injection rate estimator is designed to realize a cycle to cycle feedback control.

Abstract translation: 喷射器被设计成提供连续可变的喷射速率成形。 通过水力机械内部反馈机构，可以通过控制反馈阀的开/关定时来确定喷射器针位置。 根据针位置，可以控制注射针阀开口，然后可以成比例地输送注射流量。 根据本发明，还提供了包括本发明的喷射器的CRDI系统，其结果表明，本发明的喷射器设计不仅实现了速率整形能力，而且解决了当前CRDI系统的上述问题。 最后，还开发了一种迭代学习控制器来跟踪所需的注入速率，并且注入速率估计器被设计成实现循环以循环反馈控制。