公开(公告)号：KR100369162B1

公开(公告)日：2003-01-24

申请号：KR1020000060956

申请日：2000-10-17

Applicant: 현대자동차주식회사

Inventor： 박경덕

IPC: F02D9/08

Abstract: PURPOSE: A control method for measuring throttle valve opening degree of an engine is provided to exactly control opening degree of a throttle valve. CONSTITUTION: A control method for detecting throttle valve opening degree of an engine comprises a first stage(202) first stage setting an initial value of a wide open throttle learning value and a revolution learning value into zero; a second stage(204) detecting a throttle position sensor signal; a third stage(206) calculating throttle valve opening ratio through the throttle position sensor signal; a fourth stage(208) detecting whether the engine is an idle rotating state by sensing revolution per minute of the engine; a fifth stage inputting(210) the throttle position sensor signal into an idle rotation learning value; and a sixth stage(212) calculating opening degree of the throttle valve. Thereby, the control method for detecting the throttle valve opening degree of the engine exactly controls the opening degree of the throttle valve.

Abstract translation: 目的：提供一种用于测量发动机的节气门开度的控制方法，以精确地控制节气门的开度。 用于检测发动机的节气门开度的控制方法包括：第一阶段（202）第一阶段，将大开度节气门学习值和公转学习值的初始值设置为零; 第二级（204），检测节气门位置传感器信号; 第三阶段（206），通过节气门位置传感器信号计算节气门开启比; 第四阶段（208），通过感测发动机的每分钟转数来检测发动机是否处于空转状态; 将节气门位置传感器信号输入（210）成空转旋转学习值的第五阶段; 和计算节气门开度的第六阶段（212）。 由此，用于检测发动机的节气门开度的控制方法精确地控制节气门的开度。

公开(公告)号：KR1020020049262A

公开(公告)日：2002-06-26

申请号：KR1020000078393

申请日：2000-12-19

Applicant: 현대자동차주식회사

Inventor： 박경덕

IPC: G01M15/00

Abstract: PURPOSE: A misfire diagnosis method is provided to achieve improved reliability and accuracy for the result of diagnosis by diagnosing misfire through the use of exhaust gas which is not burnt due to the misfire. CONSTITUTION: A misfire diagnosis method comprises a first step(ST21 to ST24) of allowing an electronic control unit of a motor vehicle to calculate an air fuel ratio at the point of fuel injection in accordance with the amount of air taken into an engine and the amount of fuel injected into a cylinder, and calculate an air fuel ratio from the signal output from an oxygen sensor mounted to a motor vehicle; and a second step(ST25 to ST26) of determining the occurrence of engine misfire in accordance with whether the difference between the two air fuel ratios exceeds the reference value. The oxygen sensor is a broad band oxygen sensor mounted to an exhaust manifold, and outputs a signal indicative of the density of air fuel mixture.

Abstract translation: 目的：提供失火诊断方法，通过使用不会由于失火而燃烧的废气来诊断失火，从而提高诊断结果的可靠性和准确性。 构成：失火诊断方法包括：第一步骤（ST21〜ST24），其允许机动车辆的电子控制单元根据进入发动机的空气量来计算燃料喷射点处的空燃比， 喷射到气缸中的燃料量，并且从安装到机动车辆的氧传感器输出的信号计算空燃比; 以及根据两个空燃比之间的差是否超过参考值来确定发动机失火的发生的第二步骤（ST25至ST26）。 氧传感器是安装到排气歧管的宽带氧传感器，并且输出表示空气燃料混合物的密度的信号。