Title:
内燃機関の制御システム
Document Type and Number:
Japanese Patent JP4400633
Kind Code:
B2
Abstract:
In the present invention, in a control system for a spark ignition internal combustion engine, when a catalyst is not sufficiently active, the ignition timing is advanced to be earlier than MBT to decrease the quantity of hydrocarbons (HC) discharged from the internal combustion engine, and oxygen is supplied to the exhaust gas upstream of the catalyst to thereby oxidize carbon monoxide (CO) discharged from the internal combustion engine. According to this invention, exhaust emissions emitted before activation of the exhaust gas purification apparatus can be decreased as much as possible, and early activation of the catalyst can be achieved by making use of heat generated by oxidation reaction of carbon monoxide (CO).
Inventors:
Nao Murase
Shogo Suda
Nobuhiko Koga
Takahiko Fujiwara
Rentaro Kuroki
Shogo Suda
Nobuhiko Koga
Takahiko Fujiwara
Rentaro Kuroki
Application Number:
JP2007045731A
Publication Date:
January 20, 2010
Filing Date:
February 26, 2007
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/04; F01N3/22; F02D43/00; F02D45/00; F02P5/15
Domestic Patent References:
| JP8232645A | ||||
| JP2004190549A | ||||
| JP9088663A | ||||
| JP2004068624A | ||||
| JP2004008908A | ||||
| JP2003314420A | ||||
| JP2004360562A |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Mayuko Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine
Mayuko Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine