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    • 1. 发明公开
    • Combustion timing prediction method and apparatus for compression ignition internal combustion engine
    • 用于压燃式内燃机的燃烧时间预测方法和设备
    • EP2312142A3
    • 2017-08-02
    • EP10186426.2
    • 2010-10-04
    • Cosmo Oil Co., Ltd.Mazda Motor Corporation
    • Tanaka, ShigeyukiKusaka, JinYouso, TakashiYamakawa, Masahisa
    • F02D35/02F02D41/30
    • F02D13/0207F02B1/12F02D13/0265F02D19/0636F02D19/0649F02D35/023F02D35/026F02D35/028F02D41/3035F02D2041/1433F02D2200/0611F02D2200/0612F02M26/01Y02T10/18Y02T10/36
    • A combustion timing prediction method for a compression self-ignition internal combustion engine includes the steps of: specifying types of a plurality of hydrocarbon components contained in a hydrocarbon fuel and proportions of the respective types in the hydrocarbon fuel; calculating, on the basis of a temperature in a combustion chamber of the internal combustion engine, a value of a first function serving as a function of the temperature for each of the types; calculating, on the basis of the proportion and the first function relating to each of the types, a value of a second function, which is a function that increases in value in response to an increase of the value of the first function and/or the proportion, for each of the types; integrating the values of the second function relating to the respective types; and predicting, on the basis of the integrated value of the values of the second function, the combustion timing of the hydrocarbon fuel in the internal combustion engine to be steadily later as the integrated value increases. As a result, the combustion timing of the hydrocarbon fuel in the compression self-ignition internal combustion engine can be predicted with maximum accuracy.
    • 一种用于压缩自点火内燃机的燃烧时间预测方法,包括以下步骤:指定包含在碳氢燃料中的多种烃组分的类型和碳氢燃料中各种类型的比例; 基于内燃机的燃烧室中的温度计算作为每种类型的温度的函数的第一函数的值; 基于与每种类型相关的比例和第一函数来计算第二函数的值,该第二函数的值是响应于第一函数和/或第二函数的值的增加而增加的函数 比例,每种类型; 整合与相应类型相关的第二功能的值; 并且基于第二函数的值的积分值来预测随着积分值增加,内燃机中的碳氢燃料的燃烧正时稳定地晚些。 结果,能够以最高精度预测压缩自点火式内燃机中的碳氢燃料的燃烧正时。