Invention Grant
US07974766B2 Valvetrain control systems with lift mode transitioning based engine synchronization timing and sensor based lift mode control
有权
具有提升模式转换的发动机同步定时和基于传感器的提升模式控制的气门控制系统
- Patent Title: Valvetrain control systems with lift mode transitioning based engine synchronization timing and sensor based lift mode control
- Patent Title (中): 具有提升模式转换的发动机同步定时和基于传感器的提升模式控制的气门控制系统
-
Application No.: US12062869Application Date: 2008-04-04
-
Publication No.: US07974766B2Publication Date: 2011-07-05
- Inventor: Allen B. Rayl
- Applicant: Allen B. Rayl
- Assignee: GM Gobal Technology Operations LLC
- Current Assignee: GM Gobal Technology Operations LLC
- Main IPC: F02D41/34
- IPC: F02D41/34 ; F01L1/34

Abstract:
A valve control system for an internal combustion engine includes a valve actuation system. The valve actuation system includes lift control valves that actuate at least one of an intake valve and an exhaust valve between N open lift modes, where N is an integer greater than one. A control module enables transitioning of at least one of the intake valve and the exhaust valve between the open lift modes. The control module synchronizes transitions between the N open lift modes with crankshaft and valvetrain timing. The control module generates an engine position synchronization signal based on the transitioning.
Public/Granted literature
Information query