Title:
【発明の名称】内燃機関の排気ガス再循環装置
Document Type and Number:
Japanese Patent JP2832423
Kind Code:
B2
Abstract:
An exhaust gas recirculation system for an engine comprises an EGR gas passage, connecting the intake and the exhaust passages to each other, and an EGR gas control valve arranged in the EGR gas passage for controlling the amount of the EGR gas flowing through the EGR gas passage. An opening of the EGR gas control valve is controlled in accordance with an output value. The output value is represented as a sum of a basic output value, corresponding to a target opening of the EGR gas control valve, a feedback correction coefficient, and a feedforward correction coefficient. When the target opening decreases below a first threshold, the feedforward correction coefficient is made zero to thereby stop the feedforward correction control. The feedforward correction control is resumed when the target opening increases to more than a second threshold.
Inventors:
FUKUMA TAKAO
TAKEMOTO HIDETSUGU
HIDAKA SHIGEKI
TAKEMOTO HIDETSUGU
HIDAKA SHIGEKI
Application Number:
JP15457095A
Publication Date:
December 09, 1998
Filing Date:
June 21, 1995
Export Citation:
Assignee:
TOYOTA JIDOSHA KK
DENSOO KK
DENSOO KK
International Classes:
F02D21/08; F02D41/00; F02M25/07; F16K31/06; F02B3/06; (IPC1-7): F02M25/07; F02M25/07; F16K31/06
Domestic Patent References:
| JP5332202A |
Attorney, Agent or Firm:
Takashi Ishida (3 others)