Title:
内燃機関の排気浄化システム
Document Type and Number:
Japanese Patent JP6828706
Kind Code:
B2
Abstract:
An object of the invention is to prevent the sensing accuracy of an exhaust gas sensor from being deteriorated by the effect of electromagnetic waves in an exhaust gas purification system for an internal combustion engine that is configured to apply electromagnetic waves to the exhaust gas purification device provided in an exhaust passage of the internal combustion engine. The invention is applied to an exhaust gas purification system for an internal combustion engine including an exhaust gas sensor located within the range of radiation of electromagnetic waves from a radiating device that radiates electromagnetic waves of a specific frequency to an exhaust gas purification device. The system suspends the radiation of electromagnetic waves from the radiating device during a sampling period in which sampling of the output value of the exhaust gas sensor is performed, even when a specific condition for performing the radiation is met.
Inventors:
Kenichi Kobashi
Hiroshi Otsuki
Kazuki Kikuchi
Shinji Ikeda
Hiroshi Otsuki
Kazuki Kikuchi
Shinji Ikeda
Application Number:
JP2018055161A
Publication Date:
February 10, 2021
Filing Date:
March 22, 2018
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01N3/028; F01N3/08; F01N3/10; F02D45/00
Domestic Patent References:
| JP10212928A | ||||
| JP3078514A | ||||
| JP2010036083A | ||||
| JP2017002785A | ||||
| JP4171210A |
Attorney, Agent or Firm:
Akira Hirakawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo
Hironobu Yazawa
Takehiko Sekine
Katsuhiko Imahori
Fuminori Miyashita
Atsushi Kokubo
Hironobu Yazawa