Title:
ENGINE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP3387404
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the excessive fluctuation of throttle opening and EGR valve opening caused by micro fluctuation and an error of accelerator opening sensor output in an engine provided with a throttle device and an EGR device controlled electronically.
SOLUTION: A target total operating gas quantity TTPGAS0 of an engine is compared with a predetermined limit value GASLMT, and when TTPGAS0 is larger than GASLMT, a target EGR quantity is corrected in a decrease direction for a specified period, or EGR is forbidden, and target throttle opening TTVO of a throttle control device Tc and target EGR valve opening TSTP of an EGR control device Ec are determined from a target intake quantity TTP, target EGR quantity TTPEGR and target total operating gas quantity TTPGAS0.
More Like This:
| JPWO2006129371 | EGR gas mixer |
| JP3257430 | EXHAUST TEMPERATURE RAISING DEVICE |
Inventors:
Isamu Kazama
Hiroshi Iwano
Hiroshi Iwano
Application Number:
JP34669297A
Publication Date:
March 17, 2003
Filing Date:
December 16, 1997
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02M25/07; F02D21/08; F02D41/02; F02D41/04; F02D43/00; (IPC1-7): F02D41/02; F02D21/08; F02D41/04; F02D43/00; F02M25/07
Domestic Patent References:
| JP9250376A | ||||
| JP9217658A | ||||
| JP4252849A |
Attorney, Agent or Firm:
Masaki Goto (1 person outside)