Method and control system for operating a turbocharged internal combustion engine of a motor vehicle

    公开(公告)号:US10508605B2

    公开(公告)日:2019-12-17

    申请号:US15544953

    申请日:2016-11-05

    IPC分类号: F02D41/00 F02D41/24

    摘要: A method for operating an internal combustion engine having a turbocharger, wherein a fuel quantity is supplied to the combustion chamber of the engine in a stationary state, which fuel quantity is determined according to a first predetermined relationship between a load requirement to the engine and a rating determining a fuel quantity to be supplied to the combustion chamber, wherein a second predetermined relationship between the rating and the load requirement is used, wherein according to the second relationship, a given load requirement is assigned a larger quantity of fuel than according to the first relationship. In a transient state of the engine, the fuel quantity supplied to the combustion chamber is determined based on an interpolated value of the rating, which is determined for the rating by an interpolation between a value resulting from the first relationship and a value resulting from the second relationship.

    OPERATING PROCESS FOR A LEAN-BURN GAS ENGINE, AND LEAN-BURN GAS ENGINE
    4.
    发明申请
    OPERATING PROCESS FOR A LEAN-BURN GAS ENGINE, AND LEAN-BURN GAS ENGINE 审中-公开
    轻型燃气发动机的操作过程和燃气发动机

    公开(公告)号:US20150308400A1

    公开(公告)日:2015-10-29

    申请号:US14695816

    申请日:2015-04-24

    IPC分类号: F02P5/145 F02D41/00

    摘要: The invention relates to an operating process for a lean-burn gas engine having several cylinders, wherein the lean-burn gas engine includes a cylinder-individual gas metering arrangement and a cylinder-individual combustion process capture. The lean-burn gas engine is controlled by a control unit in such a manner that a combustion duration of the individual cylinders is regulated by a control unit, by way of a change of ignition timing of the individual cylinders. The control unit regulates the ignition timing of the individual cylinders in such a way that all cylinders are equalized in regard to their turnover point, so that a defined turnover point is achieved at a defined crank shaft angle.

    摘要翻译: 本发明涉及具有多个气缸的稀燃燃气发动机的操作过程,其中稀燃燃气发动机包括气缸单独的气体计量装置和气缸独立的燃烧过程捕集。 稀燃燃气发动机由控制单元控制,使得各个气缸的燃烧持续时间由控制单元通过各个气缸的点火正时的改变来调节。 控制单元调节各个气缸的点火正时,使得所有气缸相对于它们的周转点相等,使得在限定的曲轴角度处实现限定的周转点。

    METHOD FOR CALCULATING ENGINE CHARACTERISTIC VARIABLES, DATA PROCESSING SYSTEM AND COMPUTER PROGRAM PRODUCT
    10.
    发明申请
    METHOD FOR CALCULATING ENGINE CHARACTERISTIC VARIABLES, DATA PROCESSING SYSTEM AND COMPUTER PROGRAM PRODUCT 审中-公开
    计算发动机特征变量的方法,数据处理系统和计算机程序产品

    公开(公告)号:US20150233313A1

    公开(公告)日:2015-08-20

    申请号:US14432564

    申请日:2013-10-02

    IPC分类号: F02D41/00 F02D41/04 F02M37/00

    摘要: A method for operating a reciprocating-piston internal combustion engine, including: supplying a fuel mixture having two fuel types and air into a combustion chamber; burning the fuel mixture in the combustion chamber during a working stroke; detecting the pressure profile in the combustion chamber during the working stroke by one pressure sensor per combustion chamber; determining an amount of energy per working stroke and per combustion chamber from the pressure profile. In order to enable different fuel types and/or fuel qualities to be taken into consideration in the regulation of the engine, the calorific value of the fuel mixture per working stroke and per combustion chamber is determined from the volume and/or the mass of the supplied fuel mixture and from the determined amount of energy per working stroke and per combustion chamber. At least one parameter of the engine is regulated as a function of the calorific value.

    摘要翻译: 一种往复活塞式内燃机的操作方法,包括:向燃烧室供给具有两种燃料类型和空气的燃料混合物; 在工作冲程期间燃烧燃烧室内的燃料混合物; 通过每个燃烧室的一个压力传感器在工作行程期间检测燃烧室中的压力分布; 根据压力分布确定每个工作行程和每个燃烧室的能量。 为了在发动机的调节中能够考虑不同的燃料种类和/或燃料质量,每个工作行程和每个燃烧室的燃料混合物的发热量是根据发动机的体积和/或质量来确定的 提供燃料混合物和从每个工作行程和每个燃烧室确定的能量量。 发动机的至少一个参数作为发热量的函数进行调节。