发明名称 |
Control system for a direct injection spark ignition engine |
摘要 |
<p>An engine control system for a direct injection-spark ignition type of engine which is equipped with a fuel injector for spraying fuel directly into a combustion chamber and an exhaust system having a lean NOx conversion catalyst for lowering an emission level of nitrogen oxides (NOx) in exhaust gas at an air-fuel ratio of lambda > 1 controls divides a given amount of fuel into two parts which are intermittently delivered through early and late split injection respectively in a intake stroke and controls a fuel injector such that a midpoint between points at which the early and late split injection are timed respectively to start is before a midpoint of a intake stroke while the engine is in a cold condition in an enriched fuel charge zone. <IMAGE></p> |
申请公布号 |
EP0919711(A2) |
申请公布日期 |
1999.06.02 |
申请号 |
EP19980309719 |
申请日期 |
1998.11.26 |
申请人 |
MAZDA MOTOR CORPORATION |
发明人 |
NISHIMURA, HIROFUMI;KUJI, YOUICHI |
分类号 |
F01N3/08;F02B75/12;F02D21/08;F02D35/00;F02D41/00;F02D41/02;F02D41/04;F02D41/06;F02D41/30;F02D41/34;F02D41/40;(IPC1-7):F02D41/30;F02D41/14 |
主分类号 |
F01N3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|