Title:
CONTROL DEVICE FOR DIRECT INJECTION SPARK-IGNITION TYPE INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3755351
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To control a torque level at the time of shifting a burning method, by correcting an injection timing of fuel injection at stratified burning when shifting between stratified combustion and uniform combustion, in a device executing stratified combustion by injecting fuel into a combustion chamber in a compression process under the condition where warming has not finished yet.
SOLUTION: When a start cranking is required, a control unit 50 executes fuel injection for staring (fuel injection in an intake air process), thereby operating an engine 1 by uniform combustion. It is judged whether an exhaust emission cleaning catalyst 9 is activated or not, and when the judgement is NO, it is judged whether the temperature of a piston 15 exceeds a predetermined temperature or not. When the judgement is YES, a combustion mode is determined according to a combustion map and the like established corresponding to an operating area decided by an engine rotational speed and a load. In case of a operating area by stratified combustion, a fuel injection timing, during a compression process of the stratified combustion just before or soon after shifting, is park-advance corrected than a normal state, thereby preventing the generation of a difference in torque level.
Inventors:
Iwao Yoshida
Application Number:
JP26226099A
Publication Date:
March 15, 2006
Filing Date:
September 16, 1999
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B23/10; F02D41/04; F02D41/02; F02B75/12; (IPC1-7): F02D41/04; F02B23/10; F02D41/02
Domestic Patent References:
| JP11036919A | ||||
| JP10169488A |
Attorney, Agent or Firm:
Tomijio Sasashima