公开(公告)号：US08958973B2

公开(公告)日：2015-02-17

申请号：US13163912

申请日：2011-06-20

申请人： Hiroshi Katsurahara ,  Osamu Fukasawa ,  Tomoaki Nakano ,  Masahiro Yokoi ,  Kota Noguchi ,  Atsushi Koike

发明人： Hiroshi Katsurahara ,  Osamu Fukasawa ,  Tomoaki Nakano ,  Masahiro Yokoi ,  Kota Noguchi ,  Atsushi Koike

IPC分类号： F02B3/00 ,  F02D41/40 ,  F02D41/14

CPC分类号： F02D41/402 ,  F02D41/1454 ,  Y02T10/44

摘要： A fuel injection control device for an engine executes a split injection constructed by a fixed injection and a variable injection. A required injection amount of the fixed injection is set in a low range. A required injection amount of the variable injection is set in a high range. An injection amount in the high range is larger than that of the low range. The required injection amount of the variable injection is changed within the high range while the required injection amount of the fixed injection is fixed when a load of the engine is varied while the split injection is performed. An injection control characteristic is corrected based on an actual air-fuel ratio detected before the load is varied and an actual air-fuel ratio detected after the load is varied.

摘要翻译： 用于发动机的燃料喷射控制装置执行由固定喷射和可变喷射构成的分流喷射。 将固定喷射的所需喷射量设定在低范围内。 将可变注入的所需注入量设定在高范围内。 高范围内的喷射量大于低范围的喷射量。 可变喷射的所需喷射量在高范围内变化，同时当执行分流喷射时发动机的负载变化时固定喷射的所需喷射量是固定的。 基于在负载变化之前检测到的实际空燃比和负载变化后检测到的实际空燃比来校正喷射控制特性。

公开(公告)号：US20110320107A1

公开(公告)日：2011-12-29

申请号：US13163912

申请日：2011-06-20

申请人： Hiroshi KATSURAHARA ,  Osamu Fukasawa ,  Tomoaki Nakano ,  Masahiro Yokoi ,  Kota Noguchi ,  Atsushi Koike

发明人： Hiroshi KATSURAHARA ,  Osamu Fukasawa ,  Tomoaki Nakano ,  Masahiro Yokoi ,  Kota Noguchi ,  Atsushi Koike

IPC分类号： F02D41/26

CPC分类号： F02D41/402 ,  F02D41/1454 ,  Y02T10/44

摘要： A fuel injection control device for an engine executes a split injection constructed by a fixed injection and a variable injection. A required injection amount of the fixed injection is set in a low range. A required injection amount of the variable injection is set in a high range. An injection amount in the high range is larger than that of the low range. The required injection amount of the variable injection is changed within the high range while the required injection amount of the fixed injection is fixed when a load of the engine is varied while the split injection is performed. An injection control characteristic is corrected based on an actual air-fuel ratio detected before the load is varied and an actual air-fuel ratio detected after the load is varied.

摘要翻译： 用于发动机的燃料喷射控制装置执行由固定喷射和可变喷射构成的分流喷射。 将固定喷射的所需喷射量设定在低范围内。 将可变注入的所需注入量设定在高范围内。 高范围内的喷射量大于低范围的喷射量。 可变喷射的所需喷射量在高范围内变化，同时当执行分流喷射时发动机的负载变化时固定喷射的所需喷射量是固定的。 基于在负载变化之前检测到的实际空燃比和负载变化后检测到的实际空燃比来校正喷射控制特性。