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CN103874842A 用于内燃机的诊断方法和装置 失效 - 权利终止

用于内燃机的诊断方法和装置
摘要：
微型计算机（21）在第一监视例程（R2）中，基于在燃料喷射量控制例程（R1）中计算的要求喷射量，以及在该例程中用于要求喷射量的计算而使用的发动机操作状况的检测值，来确定在燃料喷射量控制例程（R1）中是否正常地计算要求喷射量，并且在第二监视例程（R3）中，基于在燃料喷射量控制例程（R1）中计算的要求喷射量，以及喷射器驱动电流的电流施加时段的测量结果，来确定是否基于要求喷射量正常地驱动喷射器14。
摘要（英）：

A microcomputer (21) determines, in a first monitoring routine (R2), whether a required injection amount was normally computed in a fuel injection amount control routine (Rl), based on the required injection amount computed in the fuel injection amount control routine (Rl), and detected values of engine operating conditions used for computation of the required injection amount in the routine, and determines, in a second monitoring routine (R3), whether an injector 14 was normally driven based on the required injection amount, based on the required injection amount computed in the fuel injection amount control routine (Rl), and a measurement result of a current application period of injector drive current.

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