The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2018
Filed:
Jun. 28, 2016
Caterpillar Inc., Peoria, IL (US);
Daniel R. Puckett, Peoria, IL (US);
Bryan Moore, Washington, IL (US);
Michael E. Sattler, Eureka, IL (US);
Prasanna M. Ballal, Peoria, IL (US);
Bradley S. Bashore, Peoria, IL (US);
Kranti K. Nellutla, Bloomington, IL (US);
Caterpiller Inc., Peoria, IL (US);
Abstract
Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.