公开(公告)号：EP0889218B1

公开(公告)日：2007-08-08

申请号：EP98112067.8

申请日：1998-06-30

申请人： NISSAN MOTOR COMPANY LIMITED

发明人： Nagaishi, Hatsuo ,  Ueda, Takamasa ,  Iwano, Hiroshi ,  Nakajima, Yuki

IPC分类号： F02D41/14 ,  F02D41/40

CPC分类号： F02D41/307 ,  F02D33/00 ,  F02D41/3029 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/128 ,  Y02T10/44

公开(公告)号：EP0889218A3

公开(公告)日：2000-06-14

申请号：EP98112067.8

申请日：1998-06-30

申请人： NISSAN MOTOR COMPANY, LIMITED

发明人： Nagaishi, Hatsuo ,  Ueda, Takamasa ,  Iwano, Hiroshi ,  Nakajima, Yuki

IPC分类号： F02D41/14 ,  F02D41/40

CPC分类号： F02D41/307 ,  F02D33/00 ,  F02D41/3029 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/128 ,  Y02T10/44

摘要： A fuel injection control system for a cylinder direct injection spark-ignition internal combustion engine. The fuel injection control system is configured to perform: (a) judging a homogeneous charge combustion condition which requires homogeneous charge combustion and a stratified charge combustion condition which requires stratified charge combustion, in accordance with an engine operating condition, fuel being supplied on intake stroke so as to form a rich equivalent ratio in the homogeneous charge combustion, fuel being supplied on compression stroke so as to form a lean equivalent ratio in the stratified charge combustion, the rich equivalent ratio being richer in fuel than the lean equivalent ratio; (b) gradually changing over an equivalent ratio within a range between the rich and lean equivalent ratios when engine operation is changed over between the homogeneous charge combustion condition and the stratified charge combustion condition; and (c) injecting first and second quantities of fuel into a cylinder of the engine respectively on intake and compression strokes in each cycle of the cylinder at least a predetermined time during a time period in which the equivalent ratio is gradually changed over.

公开(公告)号：EP0889218A2

公开(公告)日：1999-01-07

申请号：EP98112067.8

申请日：1998-06-30

申请人： NISSAN MOTOR COMPANY, LIMITED

发明人： Nagaishi, Hatsuo ,  Ueda, Takamasa ,  Iwano, Hiroshi ,  Nakajima, Yuki

IPC分类号： F02D41/14 ,  F02D41/40

CPC分类号： F02D41/307 ,  F02D33/00 ,  F02D41/3029 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/128 ,  Y02T10/44

摘要： A fuel injection control system for a cylinder direct injection spark-ignition internal combustion engine. The fuel injection control system is configured to perform: (a) judging a homogeneous charge combustion condition which requires homogeneous charge combustion and a stratified charge combustion condition which requires stratified charge combustion, in accordance with an engine operating condition, fuel being supplied on intake stroke so as to form a rich equivalent ratio in the homogeneous charge combustion, fuel being supplied on compression stroke so as to form a lean equivalent ratio in the stratified charge combustion, the rich equivalent ratio being richer in fuel than the lean equivalent ratio; (b) gradually changing over an equivalent ratio within a range between the rich and lean equivalent ratios when engine operation is changed over between the homogeneous charge combustion condition and the stratified charge combustion condition; and (c) injecting first and second quantities of fuel into a cylinder of the engine respectively on intake and compression strokes in each cycle of the cylinder at least a predetermined time during a time period in which the equivalent ratio is gradually changed over.

摘要翻译： 一种用于汽缸直喷火花点火内燃机的燃料喷射控制系统。 燃料喷射控制系统被配置为执行：（a）根据发动机操作条件来判断需要均匀充气燃烧的均匀充气燃烧条件和需要分层充气燃烧的分层充气燃烧条件，在进气冲程中供应燃料 为了在均压充气燃烧中形成丰富的当量比，在压缩冲程中供给燃料，以便在分层充气燃烧中形成稀薄当量比，富当量比比稀当当比更丰富; （b）当在均质充气燃烧条件和分层充气燃烧条件之间改变发动机运转时，在富和当量比之间的范围内逐渐改变当量比; 以及（c）在所述当量比逐渐变化的时间段内至少预定时间内，在所述气缸的每个循环中的进气和压缩冲程中分别将第一和第二数量的燃料喷射到所述发动机气缸中。