公开(公告)号：US20170107927A1

公开(公告)日：2017-04-20

申请号：US15298888

申请日：2016-10-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Serena TORDIN ,  Valerio NUZZO ,  Paul Leonardo CLAUDE ,  Angelo CANCELLIERI

IPC: F02D41/24 ,  F02D41/14

CPC classification number: F02D41/2464 ,  F02D41/123 ,  F02D41/1454 ,  F02D41/1456 ,  F02D41/182 ,  F02D41/2432 ,  F02D41/247 ,  F02D41/248 ,  F02D41/402 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0602 ,  F02D2200/0616 ,  F02D2250/31

Abstract: A method of operating a fuel injector of an internal combustion engine includes setting a value of a target fuel quantity to be injected by the fuel injector, initializing a value of a fuel quantity requested from the fuel injector to the value of the target fuel quantity, and correcting the value of the requested fuel quantity. A first learning cycle is performed to correct the value of the requested fuel quantity in which a difference between the target fuel quantity and the injected fuel quantity is calculated and added to the requested fuel quantity to provide a corrected value. The corrected value of the requested fuel quantity is used to determine a reference value of an energizing time that causes the fuel injector to inject a fuel quantity corresponding to the target fuel quantity. The fuel injector is operated based on the determined reference value of the energizing time.