Title:
SYSTEMS AND METHODS FOR DIAGNOSING AN ENGINE
Document Type and Number:
WIPO Patent Application WO/2013/039731
Kind Code:
A3
Abstract:
Presently disclosed are methods and systems for diagnosing a coolant leak of an engine. A method may include diagnosing a coolant leak of an engine based on identified fill signatures of a measured engine coolant pressure. A vehicle system is also disclosed, including an engine, a coolant system operatively connected to the engine, a coolant pressure sensor configured to measure engine coolant pressure during operation of the engine, and a controller, including instructions configured to create a coolant pressure profile corresponding to a given engine speed, and diagnose a condition of the engine based on the coolant pressure profile.
Inventors:
WORDEN BRET DWAYNE (US)
KARUNARATNE MILAN (US)
LANDER BENEDICT GEORGE (US)
KARUNARATNE MILAN (US)
LANDER BENEDICT GEORGE (US)
Application Number:
PCT/US2012/053512
Publication Date:
June 13, 2013
Filing Date:
August 31, 2012
Export Citation:
Assignee:
GEN ELECTRIC (US)
WORDEN BRET DWAYNE (US)
KARUNARATNE MILAN (US)
LANDER BENEDICT GEORGE (US)
WORDEN BRET DWAYNE (US)
KARUNARATNE MILAN (US)
LANDER BENEDICT GEORGE (US)
International Classes:
F01P11/18
Foreign References:
| US5324114A | 1994-06-28 | |||
| EP1544433A1 | 2005-06-22 | |||
| US5105653A | 1992-04-21 | |||
| US20070240434A1 | 2007-10-18 | |||
| EP1357272A1 | 2003-10-29 | |||
| US20030189051A1 | 2003-10-09 | |||
| US4235100A | 1980-11-25 |
Attorney, Agent or Firm:
KRAMER, John, A. et al. (Global Patent Operation2 Corporate Drive, Suite 64, Shelton CT, US)
Download PDF: