Invention Grant
- Patent Title: Method to adjust an oil control valve actuation response time using cylinder valve diagnostics
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Application No.: US15355492Application Date: 2016-11-18
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Publication No.: US10094312B2Publication Date: 2018-10-09
- Inventor: Daniel G. Brennan , Allen B. Rayl, Jr. , Brian K. Kowalczyk
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D41/14 ; F02D41/22 ; F02D41/26 ; F02D41/24

Abstract:
A method to adjust an oil control valve actuation response time using cylinder valve diagnostic results includes commanding an engine cylinder to deactivate/reactive when conditions are met and then detecting if a deactivation/reactivation response time failure has occurred by analyzing the cylinder diagnostics results. If a predetermined number of failures are detected at the cylinder within a predetermined number of engine cycles then the engine controller operates to adjust the oil control valve response time to improve the response time accuracy.
Public/Granted literature
- US20180142636A1 Method to Adjust an Oil Control Valve Actuation Response Time using Cylinder Valve Diagnostics Public/Granted day:2018-05-24
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