公开(公告)号：US20090198430A1

公开(公告)日：2009-08-06

申请号：US12318741

申请日：2009-01-07

Applicant: Yuji YASUI ,  Ikue KAWASUMI

Inventor： Yuji YASUI ,  Ikue KAWASUMI

IPC: F02D45/00 ,  F02D41/00 ,  F01N3/10

CPC classification number: F02D41/1402 ,  F02D41/0255 ,  F02D41/107 ,  F02D41/1403 ,  F02D41/1444 ,  F02D41/1454 ,  F02D2041/141 ,  F02D2041/142 ,  F02D2041/1422

Abstract: A control apparatus capable of ensuring high control accuracy even if a controlled object is in a transient state, when a control input is calculated based on a value obtained by correcting a value calculated by a feedforward control method using a value calculated by a feedback control method. The control apparatus calculates a fuel correction coefficient such that an output from an oxygen concentration sensor converges to a target output, and multiplies a basic injection amount by the coefficient to calculate a fuel injection amount. The basic injection amount is selected from three values according to the cause of a mapping error. Two of them are calculated by searching respective maps according to corrected throttle valve opening values and engine speed. The other is calculated by multiplying a value obtained by searching a map according to the opening and the speed by a correction coefficient.

Abstract translation: 一种控制装置，即使控制对象处于过渡状态，也能够基于通过使用由反馈控制方法计算的值校正由前馈控制方法计算出的值而得到的值来计算控制输入， 。 控制装置计算燃料校正系数，使得氧浓度传感器的输出收敛到目标输出，并将基本喷射量乘以系数以计算燃料喷射量。 根据映射错误的原因，从三个值中选择基本喷射量。 其中两个通过根据修正的节气门开度值和发动机转速搜索各个地图来计算。 另一个是通过将根据开口和速度搜索映射获得的值乘以校正系数来计算的。