Title:
火花点火式直噴エンジンの制御装置
Document Type and Number:
Japanese Patent JP3552609
Kind Code:
B2
Abstract:
A control system is adapted for a direct injection engine (1) of spark ignition type provided with an exhaust gas purifying catalyst (11) in an exhaust passage (3), a fuel injection valve (5) for directly spraying fuel into a combustion chamber, a sparking plug (4) having an electrode projecting into the combustion chamber. The control system includes an intake air amount controller (18) for controlling the amount of intake air to be admitted into the combustion chambers, and a fuel injection controller (19) for carrying out stratified combustion in a stratified combustion region set in a low engine load region while carrying out uniform combustion in a uniform combustion region set in a high engine load region. When the intake air amount controller (18) executes a control to reduce the amount of intake air in the stratified combustion region when the engine (1) is warm, and the fuel control system advances the fuel injection starting timing within a compression stroke and sets a degree of advancement within such a range where stratified combustion can be maintained. Accordingly, deterioration of combustibility can be effectively prevented when the intake air amount controller (18) executes the control to reduce the amount of intake air in the stratified combustion region.
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Inventors:
Hirofumi Nishimura
Application Number:
JP28062299A
Publication Date:
August 11, 2004
Filing Date:
September 30, 1999
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/00; F02D41/02; F02D41/04; F01N3/28; F02D41/30; F02D41/34; F02D41/40; F02D41/16; (IPC1-7): F02D41/02; F01N3/28; F02D41/04; F02D41/34
Domestic Patent References:
JP6101554A | ||||
JP2001527179A | ||||
JP11218048A | ||||
JP10169488A | ||||
JP10068350A |
Attorney, Agent or Firm:
Etsushi Kotani
Kyuichi Ueki
Jiro Higuchi
Kyuichi Ueki
Jiro Higuchi
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