公开(公告)号：KR1020130025567A

公开(公告)日：2013-03-12

申请号：KR1020110088947

申请日：2011-09-02

Applicant: 현대자동차주식회사 ,  아주대학교산학협력단

Inventor： 진재민 ,  강구태 ,  정인수 ,  민경덕 ,  김영관 ,  이진우

IPC: G01M15/12 ,  G01M15/08 ,  G01L23/22 ,  G01M15/04 ,  G06F17/00

CPC classification number: G01M15/12 ,  G01L23/22 ,  G01M15/04 ,  G01M15/08 ,  G06F17/00

Abstract: PURPOSE: A device for setting a mounting position of a vibration sensor of an inner combustion engine, a control method thereof, and a system for the same are provided to set a mounting position of the vibration sensor by measuring vibration and pressure and analyzing the same simultaneously on a real time basis, thereby reducing the number of processes and minimizing time required for setting an optimal mounting position. CONSTITUTION: A device for setting a mounting position of a vibration sensor comprises a data measuring unit(10) and a data calculation unit(30). The data measuring unit respectively measures vibration per each measurement position set in advance and pressure at a reference position set in advance when combusting the inner combustion engine. The data calculation unit calculates correlation indexes per each measurement positions by using measured pressure signals and vibration signals, thereby setting the mounting position of the vibration sensor based on the calculated correlation indexes. [Reference numerals] (12) Pressure measuring end; (14) Vibration measuring end; (30) Data calculation unit

Abstract translation: 目的：设置用于设定内燃机的振动传感器的安装位置的装置及其控制方法及其系统，以通过测量振动和压力来设置振动传感器的安装位置并对其进行分析 同时实时地进行，从而减少了设置最佳安装位置所需的处理次数和最小化时间。 构成：用于设置振动传感器的安装位置的装置包括数据测量单元（10）和数据计算单元（30）。 数据测量单元分别在燃烧内燃机时测量预先设定的每个测量位置的振动和预先设定的基准位置的压力。 数据计算单元通过使用测量的压力信号和振动信号来计算每个测量位置的相关指标，从而基于所计算的相关指数设置振动传感器的安装位置。 （附图标记）（12）压力测量端; （14）振动测量端; （30）数据计算单位

公开(公告)号：KR101316281B1

公开(公告)日：2013-10-08

申请号：KR1020110133722

申请日：2011-12-13

Applicant: 현대자동차주식회사 ,  아주대학교산학협력단

Inventor： 진재민 ,  강구태 ,  정인수 ,  유성은 ,  김영관 ,  이진우

IPC: F02D41/04 ,  F02D41/22 ,  F02D41/34 ,  F02D41/40

CPC classification number: F02D35/028 ,  F02D35/026 ,  F02D41/1498 ,  F02D2041/286 ,  F02D2041/288 ,  F02D2200/025 ,  G01M15/12

Abstract: 본 발명은 직접 연소압력을 측정하지 않고 진동을 통하여 연소실의 최대압력을 추정하고 연료분사시기를 제어할 수 있는 디젤엔진의 연소 제어 방법에 관한 것이다.
본 발명에 따른 디젤엔진의 연소 제어 방법은, 엔진에서 발생하는 진동을 측정하는 진동측정단계(S120)와, 상기 진동측정단계(S120)에서 측정된 진동데이터에서 최대압력발생위치(LPP)가 예측되는 범위를 설정하는 측정영역설정단계(S130)와, 상기 측정영역설정단계(S130)에서 설정된 진동신호를 주파수응답함수로 변환하는 주파수변환단계(S140)와, 상기 주파수변환단계(S140)에서 변환된 주파수응답함수를 적산하는 주파수적산단계(S150)와, 상기 주파수적산단계(S150)에서 적산된 주파수응답함수에서 최대압력발생위치를 선정하는 LPP검출단계(S160)와, 검출된 LPP위치로 LPP 옵셋과 연소개시시기(SOC) 옵셋을 선정하는 추정값산출단계(S170)와, 상기 추정값산출단계(S170)에서 산출된 추정 LPP값과 추정 SOC값을 목표 LPP값과 목표 SOC값과 비교하여 에러를 산출하는 에러� �출단계(S180)와, 상기 에러산출단계(S180)에서 산출된 값을 이용하여 연소를 보정하여 제어하는 연소보정단계(S190)를 포함한다.

公开(公告)号：KR1020130066938A

公开(公告)日：2013-06-21

申请号：KR1020110133722

申请日：2011-12-13

Applicant: 현대자동차주식회사 ,  아주대학교산학협력단

Inventor： 진재민 ,  강구태 ,  정인수 ,  유성은 ,  김영관 ,  이진우

IPC: F02D41/04 ,  F02D41/22 ,  F02D41/34 ,  F02D41/40

CPC classification number: F02D35/028 ,  F02D35/026 ,  F02D41/1498 ,  F02D2041/286 ,  F02D2041/288 ,  F02D2200/025 ,  G01M15/12

Abstract: PURPOSE: A method for controlling the combustion of a diesel engine is provided to estimate the peak pressure of a combustion chamber and control fuel injection timing through vibration without the direct measurement of combustion pressure. CONSTITUTION: A method for controlling the combustion of a diesel engine includes: a step (S120) of measuring vibration on the engine; a step (S130) of predetermining a range in which the location of the peak pressure (LPP) is predicted with measured data for the vibration; a step (S140) of converting a determined vibration signal into a frequency response function; a step (S150) of integrating the converted frequency response functions; a step (S160) of determining the LPP from the integrated frequency response functions; a step (S170) of determining the offset of the LPP and the offset of the start of combustion (SOC) to the detected LPP; and a step (S180) of calculating an error with comparing a calculated estimated LPP value and estimated SOC value with a target LPP value and a target SOC value. [Reference numerals] (AA) Start; (S110) Drive an engine; (S120) Measure an engine block vibration; (S130) Select a measurement window from a driving condition; (S140) Wavelet-convert the measured vibration into the selected window; (S150) Integrate the converted wavelet value; (S160) Detect the maximum generation position of the integrated wavelet value; (S170) Apply an offset of an LPP and an SOC from a detected location and presume the LPP and the SOC; (S180) ε_LPP = LPP_target - LPP_ presume ε_SOC = SOC_target-SOC_presume; (S191) Compensate fuel emission period; (S192) Compensate fuel emission quantity

Abstract translation: 目的：提供一种用于控制柴油发动机燃烧的方法，以估计燃烧室的峰值压力，并且通过振动控制燃料喷射正时，而不直接测量燃烧压力。 构成：用于控制柴油发动机的燃烧的方法包括：测量发动机的振动的步骤（S120）; 预测用于振动的测量数据来预测峰值压力（LPP）的位置的范围的步骤（S130）; 将确定的振动信号转换为频率响应函数的步骤（S140）; 对转换的频率响应函数进行积分的步骤（S150）; 从集成频率响应函数确定LPP的步骤（S160）; 确定LPP的偏移和燃烧开始（SOC）的偏移与检测到的LPP的步骤（S170）; 以及通过将计算出的估计LPP值和估计SOC值与目标LPP值和目标SOC值进行比较来计算误差的步骤（S180）。 （附图标记）（AA）开始; （S110）驱动发动机; （S120）测量发动机缸体振动; （S130）从行驶状态选择测量窗口; （S140）将测量的振动小波变换为所选择的窗口; （S150）整合转换的小波值; （S160）检测积分小波值的最大生成位置; （S170）从检测到的位置应用LPP和SOC的偏移量，并设定LPP和SOC; （S180）ε_LPP= LPP_target - LPP_推测ε_SOC= SOC_target-SOC_presume; （S191）补偿燃料排放期; （S192）补偿燃料排放量