公开(公告)号：US5080071A

公开(公告)日：1992-01-14

申请号：US540281

申请日：1990-06-19

申请人： Kunitomo Minamitani ,  Tetsuro Takaba ,  Terufumi Yamashita ,  Yuji Sato

发明人： Kunitomo Minamitani ,  Tetsuro Takaba ,  Terufumi Yamashita ,  Yuji Sato

IPC分类号： F02D41/34 ,  F02D41/04 ,  F02D41/10

CPC分类号： F02D41/102 ,  F02D41/047

摘要： In a fuel control system for an internal combustion engine, fuel is injected in a quantity the direct delivery part of which provides a desired quantity of fuel to be actually fed to the engine together with the drawn part of the intake-manifold wetting fuel. The quantity of the intake-manifold wetting fuel on the basis of which the quantity of the drawn part is calculated is calculated on the basis of the quantity of the adhering part of the fuel which was injected by the preceding injection and the quantity of the residual part of the preceding intake-manifold wetting fuel.

公开(公告)号：US4987876A

公开(公告)日：1991-01-29

申请号：US377411

申请日：1989-07-10

申请人： Kunitomo Minamitani ,  Tetsuro Takaba ,  Terufumi Yamashita ,  Toshihide Nishikawa

发明人： Kunitomo Minamitani ,  Tetsuro Takaba ,  Terufumi Yamashita ,  Toshihide Nishikawa

IPC分类号： F02D41/04 ,  F02D41/18 ,  F02D41/34

CPC分类号： F02D41/182 ,  F02D41/345 ,  Y02T10/44

摘要： A multi-cylinder internal combustion engine is provided with a fuel injection system, which includes a plurality of fuel injection nozzles securely mounted in independent intake passages communicating with combustion chambers of respective cylinders, an air-flow sensor for detecting the amount of intake air to be led into each combustion chamber, a crank angle sensor and a cylinder discrimination sensor for detecting the present stroke timing of each cylinder, a speed sensor for detecting the engine speed and a control unit for outputting a signal to the fuel injection nozzles so that a predetermined amount of fuel may be injected to each cylinder at a predetermined timing on the basis of values detected by the respective sensors. The control unit calculates the injection timing of fuel to be injected into each cylinder so that the injection start timing may be altered in compliance with driving conditions of the engine. The control unit also calculates the amount of fuel to be injected into each cylinder on the basis of at least the amount of intake air and the engine speed. The amount of intake air is detected at a timing which is altered in compliance with the injection start timing and close to this timing.

摘要翻译： 多缸内燃机设置有燃料喷射系统，该燃料喷射系统包括牢固地安装在与各气缸的燃烧室连通的独立进气通路中的多个燃料喷射喷嘴，用于检测进气量的气流传感器 被引导到每个燃烧室中，一个曲柄角传感器和用于检测每个气缸的当前行程时间的气缸识别传感器，用于检测发动机转速的速度传感器和用于向燃料喷射喷嘴输出信号的控制单元， 基于由各个传感器检测到的值，可以在预定定时将预定量的燃料喷射到每个气缸。 控制单元计算要喷射到每个气缸中的燃料的喷射正时，使得喷射开始定时可以根据发动机的行驶条件而改变。 控制单元还基于至少进气量和发动机转速来计算要喷射到每个气缸中的燃料量。 在根据喷射开始时刻改变并接近该定时的定时检测进气量。