Valve timing testing system and method of engine

The invention discloses a valve timing test system and method of an engine. The system comprises a camshaft encoder used for acquiring the rotation angle of a camshaft of an engine and outputting a first time domain signal to a data acquisition module according to the rotation angle; the crankshaft...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: XIE XIAOKAI, LI TIANCHENG, SHI PENGLI, DONG SHUANG, WU RENZHE, JIANG WENHU
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a valve timing test system and method of an engine. The system comprises a camshaft encoder used for acquiring the rotation angle of a camshaft of an engine and outputting a first time domain signal to a data acquisition module according to the rotation angle; the crankshaft encoder is used for acquiring the rotation angle of a crankshaft of the engine and outputting a second time domain signal to the data acquisition module according to the rotation angle; the data acquisition module is used for determining a rotated camshaft angle according to the initial crankshaft angle, the second time domain signal and the first time domain signal, determining a camshaft phase deviation according to the initial camshaft angle and the rotated camshaft angle, and determining a cam phase deviation according to the camshaft phase deviation; and determining a valve timing test result according to the cam phase deviation. According to the embodiment of the invention, the automatic measurement of the va