公开(公告)号：EP1674701A3

公开(公告)日：2007-06-06

申请号：EP05256898.7

申请日：2005-11-08

申请人： Honda Motor Co., Ltd.

发明人： Uraki, Mamoru ,  Yamazaki, Ryutaro ,  Hayashi, Tatsuo ,  Kono, Tomoya ,  Abe, Takeru

IPC分类号： F02D41/14

CPC分类号： F02D41/1456 ,  F02D41/1479 ,  F02D41/1484 ,  F02D41/1489 ,  F02D2041/2048

摘要： An air-fuel ratio feedback control is provided To prevent over-rich and over-lean of an air-fuel mixture.
An air-fuel ratio setting section 50 sets a target air-fuel ratio KCMD according to engine conditions. An air-fuel ratio correction coefficient calculating section 51 calculates an air-fuel ratio correction coefficient KAF for controlling the air-fuel ratio so that a detected air-fuel ratio KACT is converged to the target air-fuel ratio KCMD.
To prevent over-rich and over-lean of the air-fuel mixture, a lower limit section 52 constrains the air-fuel ratio correction coefficient KAF so as not to underrun the lower limit value, and an upper limit section 53 constrains the air-fuel ratio correction coefficient KAF so as not to exceed the upper limit value. A basic fuel injection time determining section 54 calculates a basic fuel injection time TIM, and a fuel injection time calculating section 55 calculates a fuel injection time TOUT based on the target air-fuel ratio KCMD, the air-fuel ratio correction coefficient KAF, the basic fuel injection time TIM or the like, and various engine parameters.

公开(公告)号：EP1643108A1

公开(公告)日：2006-04-05

申请号：EP05016105.8

申请日：2005-07-25

申请人： HONDA MOTOR CO., Ltd.

发明人： Kono, Tomoya ,  Abe, Takeru ,  Yamazaki, Ryutaro ,  Uraki, Mamoru

IPC分类号： F02D41/14 ,  F01N7/00

CPC分类号： F01N13/008 ,  F01N2560/02 ,  F01N2590/04

摘要： To provide a mounting structure of an air-fuel ratio sensor (34) in a motorcycle (10) which can eliminate the influence of water gathering in an exhaust pipe (32) upon the air-fuel ratio sensor (34) and can improve the mountability of the air-fuel ratio sensor (34) to the exhaust pipe (32).
An air-fuel ratio sensor (34) is mounted on an exhaust pipe (32) connected to an engine (30) in a motorcycle (10) so that the air-fuel ratio sensor (34) is inclined upward by an angle of 10° or more with respect to a horizontal line (H) passing through the center of the exhaust pipe (32) in its cross section and is pointed toward the lateral center of the motorcycle (10) as viewed in front elevation of the motorcycle (10).

摘要翻译： 为了在摩托车（10）中提供空燃比传感器（34）的安装结构，可以消除排气管（32）中的集水对空燃比传感器（34）的影响，并且可以改善 空燃比传感器34与排气管32的安装性。 空燃比传感器（34）安装在与摩托车（10）中的发动机（30）连接的排气管（32）上，使得空燃比传感器（34）向上倾斜10° 相对于在其横截面中通过排气管32的中心的水平线（H）的角度（°）以上，并且从摩托车10的正面观察时朝向摩托车10的侧面中心 ）。

公开(公告)号：EP1674701A2

公开(公告)日：2006-06-28

申请号：EP05256898.7

申请日：2005-11-08

申请人： Honda Motor Co., Ltd.

发明人： Uraki, Mamoru ,  Yamazaki, Ryutaro ,  Hayashi, Tatsuo ,  Kono, Tomoya ,  Abe, Takeru

IPC分类号： F02D41/14

CPC分类号： F02D41/1456 ,  F02D41/1479 ,  F02D41/1484 ,  F02D41/1489 ,  F02D2041/2048

摘要： An air-fuel ratio feedback control is provided To prevent over-rich and over-lean of an air-fuel mixture.
An air-fuel ratio setting section 50 sets a target air-fuel ratio KCMD according to engine conditions. An air-fuel ratio correction coefficient calculating section 51 calculates an air-fuel ratio correction coefficient KAF for controlling the air-fuel ratio so that a detected air-fuel ratio KACT is converged to the target air-fuel ratio KCMD.
To prevent over-rich and over-lean of the air-fuel mixture, a lower limit section 52 constrains the air-fuel ratio correction coefficient KAF so as not to underrun the lower limit value, and an upper limit section 53 constrains the air-fuel ratio correction coefficient KAF so as not to exceed the upper limit value. A basic fuel injection time determining section 54 calculates a basic fuel injection time TIM, and a fuel injection time calculating section 55 calculates a fuel injection time TOUT based on the target air-fuel ratio KCMD, the air-fuel ratio correction coefficient KAF, the basic fuel injection time TIM or the like, and various engine parameters.

摘要翻译： 提供空燃比反馈控制以防止空气 - 燃料混合物的过剩和过度贫乏。 空燃比设定部50根据发动机状况设定目标空燃比KCMD。 空燃比校正系数计算部51计算用于控制空燃比的空燃比校正系数KAF，使得检测到的空燃比KACT收敛到目标空燃比KCMD。 为了防止空气 - 燃料混合物的过剩和过度倾斜，下限部分52限制空燃比校正系数KAF，以便不会下降下限值，并且上限部分53限制空气 - 燃料比校正系数KAF，以便不超过上限值。 基本燃料喷射时间确定部54计算基本燃料喷射时间TIM，燃料喷射时间计算部55基于目标空燃比KCMD，空燃比校正系数KAF， 基本燃料喷射时间TIM等，以及各种发动机参数。

公开(公告)号：EP1643096A1

公开(公告)日：2006-04-05

申请号：EP05016106.6

申请日：2005-07-25

申请人： HONDA MOTOR CO., Ltd.

发明人： Kono, Tomoya ,  Abe, Takeru ,  Yamazaki, Ryutaro ,  Uraki, Mamoru

IPC分类号： F01N7/00

CPC分类号： F02B77/086 ,  B62J99/00 ,  B62J2099/002 ,  B62K2207/00 ,  F01N13/008 ,  F01N13/009 ,  F01N13/011 ,  F01N13/107 ,  F01N2560/025 ,  F02B61/02

摘要： To provide a mounting structure of an air-fuel ratio sensor on an exhaust pipe in a motorcycle (10) wherein the concentration of oxygen in an exhaust gas can be detected by the air-fuel ratio sensor efficiently and accurately. An air-fuel ratio sensor (50) is mounted on a manifold (34) of exhaust pipes (32a and 32b) connected to the cylinders of an engine. The air-fuel ratio sensor (50) is located upstream of catalytic converters (38a and 38b) provided in the exhaust pipes (32a and 32b).

摘要翻译： 为了在摩托车（10）的排气管上提供空燃比传感器的安装结构，其中能够有效且准确地通过空燃比传感器检测废气中的氧浓度。 空燃比传感器（50）安装在连接到发动机气缸的排气管（32a和32b）的歧管（34）上。 空燃比传感器（50）位于设置在排气管（32a和32b）中的催化转化器（38a和38b）的上游。