FILTER REGENERATING METHOD OF INTERNAL COMBUSTION ENGINE

Title:

FILTER REGENERATING METHOD OF INTERNAL COMBUSTION ENGINE

Document Type and Number:

Japanese Patent JP2005098148

Kind Code:

A

Abstract:

To further efficiently perform filter regenerating processing, by restraining an excessive temperature rise in a filter, in an internal combustion engine having the filter in an exhaust passage for collecting PM in exhaust gas.

When performing the filter regenerating processing, when a condition is realized in predicting that the temperature of the filter becomes the first specified temperature T1 or more, the oxygen concentration is reduced in the exhaust gas flowing in the filter, and the oxygen concentration of the exhaust gas is intermittently increased.

Inventors:

OGO TOMOYOSHI
HASHIZUME TAKESHI

Application Number:

JP2003330507A

Publication Date:

April 14, 2005

Filing Date:

September 22, 2003

Export Citation:

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Assignee:

TOYOTA MOTOR CORP

International Classes:

F02D45/00; F01N3/02; F02D41/08; F02D41/38; (IPC1-7): F01N3/02; F02D41/08; F02D41/38; F02D45/00

Attorney, Agent or Firm:

Yoshiyuki Kawaguchi
Hidemi Matsukura
Yutaka Nagata
Kazunobu Sera
Tsutomu Toyama

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