Title:
METHOD AND DEVICE FOR DIAGNOSING SENSOR FAILURE FOR FUEL INJECTION DEVICE
Document Type and Number:
Japanese Patent JP3048531
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely prevent engine abnormality caused by the failure of a sensor for detecting the turning position of a control shaft used for an electronic control type fuel injection device.
SOLUTION: The failure condition of a turn sensor is determined by a first diagnosing operation (step 200) for determining whether or not various elements such as an engine speed satisfy prescribed conditions or by a second diagnosing operation (step 400) and, in any of the diagnosing operations, if the prescribed conditions are satisfied, the failure of the turn sensor is determined (step 500) and spray-up preventing control for forcibly making a fuel injection amount to zero is performed (step 700).
Inventors:
Toshiyuki Horie
Application Number:
JP35178696A
Publication Date:
June 05, 2000
Filing Date:
December 12, 1996
Export Citation:
Assignee:
Zexel Co., Ltd.
International Classes:
G01M15/04; F02B77/08; F02D41/22; F02D45/00; F02M41/12; F02M65/00; G05B23/02; (IPC1-7): F02D41/22; F02B77/08; F02D45/00; F02M41/12; F02M65/00; G01M15/00; G05B23/02
Domestic Patent References:
| JP63171639U |
Attorney, Agent or Firm:
Tsutomu Abiko