Title:
FAILURE DETECTING METHOD OF LINE OIL PRESSURE CONTROL PART
Document Type and Number:
Japanese Patent JP2007309429
Kind Code:
A
Abstract:
To detect a failure of a linear solenoid valve (SLT) without adding a special sensor.
It is grasped from a change in engine load whether or not the SLT is forcibly driven or whether useless racing occurs or not in changing the gear. In the case of a system in which it is grasped from a change in engine load whether or not oil pressure supplied from the SLT is optimum to learn and control, it is grasped by the number of the occurrence of learning in the same direction in changing the gear, whereby the failure of the SLT is detected without adding a special sensor for detecting a failure.
COPYRIGHT: (C)2008,JPO&INPIT
More Like This:
Inventors:
MATSUDA SHINGO
HAGITANI TAKASHI
TADAI TAKAAKI
HAGITANI TAKASHI
TADAI TAKAAKI
Application Number:
JP2006139361A
Publication Date:
November 29, 2007
Filing Date:
May 18, 2006
Export Citation:
Assignee:
FUJITSU TEN LTD
International Classes:
F02D29/00; F02D29/02; F16H61/12; F16H59/68; F16H59/74
Previous Patent: GAP ADJUSTABLE SQUEEGEE
Next Patent: REDUCTION GEAR AND VALVE TIMING ADJUSTING DEVICE
Next Patent: REDUCTION GEAR AND VALVE TIMING ADJUSTING DEVICE