柴油发电机组用电控发动机故障诊断的基本流程与技巧

柴油发电机组用电控发动机故障诊断的基本流程与技巧

The basic processes and techniques of engine fault diagnosis for diesel generatorThe basic process of electronic controlled engine fault diagnosisThe basic process of electronic controlled engine fault diagnosis

 (1)通过向车主或有关人员的交谈，详细了解故障的产生、发展的全过程，以及过去的故障状况、检修状况和车况等，从而为诊断提供线索，为进一步检查提出方向。

(1) through to the owner or the relevant personnel of the conversation, a detailed understanding of the fault, the whole process of the development, and past conditions of fault, maintenance condition and condition and other, thus diagnosis provide clues to put forward the direction for further investigation.

(2)直观诊断。

Visual diagnosis (2).

(3)人工或仪器读取并验证故障码，查清故障码表示的故障是否存在，即是否故障已排除，而其故障码仍未清除。

(3) manual or instrument read and verify the trouble code, ascertain the fault code indicates the fault exists, that is, whether the fault has been ruled out. However, the failure code is not clear.

(4)若无故障码，对有明显故障征兆的，可用诊断仪、示波器、万用表等读取有关发动机数据，进行数值、波形分析；并依据分析结果，检查有关部件，视需要进行维修或更换。若无明显故障征兆，则采用症状模拟方法对故障进行分析，以进一步检查故障的原因。

(4) if there is no trouble code, the obvious signs of failure, the available diagnostic instrument, oscilloscope, million meters read about the engine data, numerical, waveform analysis; and according to the analysis results, check the relevant components, depending on the need for repair or replacement. If there is no obvious fault symptom, the symptom of the fault analysis method, to further check the fault.

(5)若有故障码，则根据故障码的内容检查并排除故障。

(5) if fault code, according to the contents of the fault code check and troubleshooting.

(6)重新起动发动机，验证故障是否已排除。若故障未排除，则继续检查故障原因。

(6) to start the engine, to verify whether the fault has been ruled out. If the fault is not excluded, then continue to check the cause of the problem.

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