Indicator diagram test system of marine engine

Abstract

The invention relates to a marine engine dynamometer test system, which includes a diesel engine, a sensor, a cylinder pressure adjustment module, a single-chip controller, a peripheral circuit, a trigger signal adjustment module and an upper host, wherein the cylinder pressure adjustment module and the trigger signal adjustment module, The single-chip controller is connected to the cylinder pressure conditioning module, and the single-chip controller and the trigger signal adjustment module are respectively connected to the host computer. The invention has high integration, richer internal resources, fast data analysis speed, high precision, works stably in working environments such as high temperature and vibration, and can accurately measure the cylinder pressure of a marine engine.

Description

technical field [0001] The invention relates to a test system for a marine engine dynamometer. Background technique [0002] The working environment of marine engines is very harsh, and the possibility of failure increases with the increase of research on strong loads. Once a failure occurs, it will not only cause huge economic losses, but may even cause casualties. Representative foreign monitoring systems include: MAN B&W company's two-stroke low-speed diesel engine cylinder pressure on-line monitoring system (Diesel'On.1inePMI System), which adopts the master-slave unit design concept, realizes high temperature, high humidity, vibration and Online monitoring of cylinder pressure in harsh environments such as electromagnetic interference; Warsilia has developed an ICM online cylinder pressure test system based on ABB Cylmate system technology and cylinder pressure performance parameter detection technology, and realized online measurement of two-stroke low-speed diesel en...

AI Technical Summary

Problems solved by technology

The domestically developed cylinder pressure test system mainly includes the offline cylinder pressure test system 31. This test system uses a charge-type cylinder pressure sensor, which is greatly disturbed by the outside world and has a limited transmission distance. The acquisition controller uses the AT89S52 single-chip microcomputer as the core, and its processing speed And the available resources on the chip are limited, and the anti-interference ability is poor

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