Title:
DEVICE FOR ESTIMATING FRICTION OF ENGINE, AND DEVICE FOR DIAGNOSING FUEL CONSUMPTION
Document Type and Number:
Japanese Patent JP2001098997
Kind Code:
A
Abstract:
To specify a cause worsening a fuel consumption in an engine.
A computing means 21 computes a lowering rate of an engine speed when the engine is stopped, and the lowering rate of the engine speed is compared with a determination value to determine by a determination means 22 whether engine friction increases or not.
Inventors:
KAWAMURA KATSUHIKO
Application Number:
JP28102699A
Publication Date:
April 10, 2001
Filing Date:
October 01, 1999
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
G01L5/00; F02D45/00; G01M17/007; (IPC1-7): F02D45/00; G01M17/007
Attorney, Agent or Firm:
Masaki Goto (1 person outside)
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