Title:
内燃機関の空燃比制御装置
Document Type and Number:
Japanese Patent JP4363406
Kind Code:
B2
Abstract:
The combustion air-fuel ratio is made leaner than the stoichiometric air-fuel ratio at the time of engine startup and the combustion air-fuel ratio is made richer than the stoichiometric air-fuel ratio and the exhaust downstream part of the three-way catalyst apparatus is raised in temperature when it is judged that just the exhaust upstream part of the three-way catalyst apparatus arranged in the engine exhaust system has been raised to the catalyst activation temperature.
Inventors:
Mizoguchi Hiroaki
Takahiko Fujiwara
Kunihiko Nakata
Kenji Sakurai
Hiroki Ichinose
Kawai Masaaki
Atsushi Hirata
Takahiko Fujiwara
Kunihiko Nakata
Kenji Sakurai
Hiroki Ichinose
Kawai Masaaki
Atsushi Hirata
Application Number:
JP2006029535A
Publication Date:
November 11, 2009
Filing Date:
February 07, 2006
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/06; F01N3/20; F01N3/24; F02D45/00
Domestic Patent References:
| JP9151759A | ||||
| JP2005188476A | ||||
| JP9096214A | ||||
| JP2005264826A | ||||
| JP2001050085A | ||||
| JP9170427A | ||||
| JP9222010A |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Masaya Nishiyama
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Masaya Nishiyama