Invention Grant
- Patent Title: Oil condition sensing methods and systems
- Patent Title (中): 油气传感方法和系统
-
Application No.: US12276876Application Date: 2008-11-24
-
Publication No.: US08127597B2Publication Date: 2012-03-06
- Inventor: David R. Staley , Bryan K. Pryor , William C. Albertson , Timothy L. Neal , Mike M. McDonald
- Applicant: David R. Staley , Bryan K. Pryor , William C. Albertson , Timothy L. Neal , Mike M. McDonald
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: G01N33/26
- IPC: G01N33/26 ; F01M1/04

Abstract:
An engine oil system comprises an oil condition sensing device and a control module. The oil condition sensing device includes an electrically actuated member and is in fluid communication with an engine oil reservoir. The control module selectively causes current to be supplied to the oil condition sensing device to actuate the member, measures the current, determines a parameter of the current, and selectively identifies at least two of an oil level, an oil change event, and an oil viscosity level based on the parameter.
Public/Granted literature
- US20090188755A1 OIL CONDITION SENSING METHODS AND SYSTEMS Public/Granted day:2009-07-30
Information query