公开(公告)号：US4542730A

公开(公告)日：1985-09-24

申请号：US629969

申请日：1984-07-11

申请人： Shiro Nagasawa ,  Naruaki Morimoto ,  Toshio Fujimura ,  Masayuki Itoh ,  Shinya Taniguchi

发明人： Shiro Nagasawa ,  Naruaki Morimoto ,  Toshio Fujimura ,  Masayuki Itoh ,  Shinya Taniguchi

IPC分类号： F02D41/34 ,  F02D41/00 ,  F02D41/14 ,  F02M17/00

CPC分类号： F02D41/2467 ,  F02D41/2454 ,  F02D41/248

摘要： In an air-fuel ratio control with a learning control, a first correction values stored in a memory in correspondence to intake condition of a combustion engine and fuel injection time are renewed in response to an air-fuel ratio of mixture sensed in an exhaust of the combustion engine and a second correction value also stored in the memory is renewed in dependence on a difference between the first correction values stored in correspondence to the same intake condition. The first correction values are used to correct a basic fuel injection time determined by the operating condition, while the second correction value is used to correct an ineffective fuel injection time. Fuel is injected for an interval which is a sum of the corrected basic fuel injection time and the corrected ineffective fuel injection time.

摘要翻译： 在具有学习控制的空燃比控制中，响应于在排气中感测的混合物的空燃比，更新与内燃机的进气条件相对应的存储器中存储的第一校正值和燃料喷射时间 燃烧发动机和存储在存储器中的第二校正值根据与相同进气条件相对应地存储的第一校正值之间的差更新。 第一校正值用于校正由操作条件确定的基本燃料喷射时间，而第二校正值用于校正无效燃料喷射时间。 燃料喷射间隔，其是校正的基本燃料喷射时间和校正的无效燃料喷射时间之和的总和。