Title:
失火検出装置
Document Type and Number:
Japanese Patent JP4487718
Kind Code:
B2
Abstract:
A misfire detector for an internal combustion engine sets an operating state of the internal combustion engine as a parameter and detects misfire based on the parameter. The misfire detector includes a friction-torque estimating unit and a misfire determining unit. The friction-torque estimating unit estimates indicated torque and inertial torque of the internal combustion engine when the load of the internal combustion engine is stable, obtains a difference between the indicated torque and the inertial torque, and estimates friction torque of the internal combustion engine using the difference. The misfire determining unit determines misfire by correcting the parameter using the friction torque estimated.
Inventors:
Fumihiko Sato
Application Number:
JP2004296337A
Publication Date:
June 23, 2010
Filing Date:
October 08, 2004
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D45/00; F02D41/12; G01M15/00; G01M15/11
Domestic Patent References:
| JP3246346A | ||||
| JP3202660A | ||||
| JP5263709A | ||||
| JP2002155838A | ||||
| JP2001132509A | ||||
| JP63201346A | ||||
| JP60253943A | ||||
| JP2001227387A | ||||
| JP4101071A | ||||
| JP4265475A | ||||
| JP9032625A | ||||
| JP60162028A | ||||
| JP2003009306A |
Attorney, Agent or Firm:
Hiroaki Sakai