Invention Grant
- Patent Title: Electric cam phaser control systems and methods
- Patent Title (中): 电动凸轮相机控制系统和方法
-
Application No.: US13161862Application Date: 2011-06-16
-
Publication No.: US08726880B2Publication Date: 2014-05-20
- Inventor: Etsuko Muraji Stewart , Vijay Ramappan
- Applicant: Etsuko Muraji Stewart , Vijay Ramappan
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: F02D1/00
- IPC: F02D1/00

Abstract:
A system for an engine includes a motor driver module, a target phase angle module, and a correlation control module. The motor driver module controls an electric motor of a camshaft phaser based on a target angle defined by a crankshaft position and a camshaft position. The target phase angle module selectively sets the target angle to a first phase angle before a deceleration fuel cutoff (DFCO) event and selectively transitions the target angle to a predetermined phase angle during the DFCO event. The correlation control module selectively compares a value of the crankshaft position with a predetermined crankshaft position range during the DFCO event.
Public/Granted literature
- US20120318223A1 ELECTRIC CAM PHASER CONTROL SYSTEMS AND METHODS Public/Granted day:2012-12-20
Information query