公开(公告)号：US20140311453A1

公开(公告)日：2014-10-23

申请号：US14256638

申请日：2014-04-18

申请人： Liebherr Machines Bulle SA

发明人： Konrad CHRIST ,  Francois MASSON ,  Richard PIRKL

IPC分类号： F02D41/38

CPC分类号： F02D41/2467 ,  F02D41/1402 ,  F02D41/3809 ,  F02D41/3836

摘要： A controller for a common-rail injection system includes a plurality of fuel injectors, a common fuel supply line for the fuel injectors, a high-pressure pump for supplying the common fuel supply line with fuel, and a pressure sensor for determining the pressure in the common fuel supply line. A determination unit evaluates data of the pressure sensor and, from the pressure drop caused by an injection in the common fuel supply line, determines the fuel quantity actually injected during this injection or a value derived therefrom. An adaption unit uses the results of the determination unit in order to adapt the actuation of the fuel injectors. The determination unit carries out at least one test injection, and the actually injected fuel quantity or a value derived therefrom is effected by way of the test injection or injections.

摘要翻译： 用于共轨喷射系统的控制器包括多个燃料喷射器，用于燃料喷射器的公共燃料供应管线，用于向公共燃料供应管线供应燃料的高压泵，以及用于确定压力的压力传感器 普通燃油供应线。 确定单元评估压力传感器的数据，并且从在公共燃料供应管线中的喷射引起的压降确定在该喷射期间实际喷射的燃料量或由其导出的值。 适应单元使用确定单元的结果来适应燃料喷射器的致动。 确定单元执行至少一次测试注入，并且通过测试注射或注射来实现实际喷射的燃料量或其衍生的值。

公开(公告)号：US20140311457A1

公开(公告)日：2014-10-23

申请号：US14256463

申请日：2014-04-18

申请人： Liebherr Machines Bulle SA

发明人： Konrad CHRIST ,  Francois MASSON ,  Richard PIRKL

IPC分类号： F02D41/30

CPC分类号： F02D41/30 ,  F02D41/1402 ,  F02D41/2467

摘要： A controller for an injection system having a plurality of fuel injectors includes a map controller. From a desired injection value, the map controller generates a control value for actuating a fuel injector with reference to a specified map. A determination unit determines the actual injection value for at least one injection made, and an adaption unit uses results from the determination unit in order to adapt actuation of the fuel injectors. The adaption unit determines an adaption value for injector actuation from the at least one actual injection value. In engine operation, the adaption unit receives the control values generated by the map controller as input. From this input, the adaption unit generates adapted actuation values as output by applying a mathematical function to the control values generated by the map controller. The at least one adaption value is included in the first mathematical function as parameter.

摘要翻译： 具有多个燃料喷射器的喷射系统的控制器包括地图控制器。 根据期望的喷射值，地图控制器参考指定的地图产生用于致动燃料喷射器的控制值。 确定单元确定至少一次注射的实际注射值，并且适应单元使用来自确定单元的结果来适应燃料喷射器的致动。 适应单元根据至少一个实际注射值确定喷射器致动的适应值。 在发动机运转中，自适应单元接收地图控制器产生的控制值作为输入。 从该输入，适配单元通过对由地图控制器产生的控制值应用数学函数来产生适合的致动值作为输出。 至少一个适应值被包括在第一数学函数中作为参数。