基于压力识别的船舶柴油机状态评估方法综述

Methods Overview of Diesel Engine's State Estimation Based on Cylinder Pressure Recognition

气缸压力是表征柴油机运行状态的重要性能指标之一,利用间接法识别气缸压力成为柴油机状态评估的有效方法。详细介绍了通过缸盖振动信号和瞬时转速信号识别压力的各种方法,以及针对柴油机系统的非线性利用神经网络进行压力识别的可行性和实用性;另外,在未知气缸压力的前提下识别气缸压力也成为一个新的研究方向。

Cylinder pressure is one of the most important performances index to token the working state, and recognize the cylinder pressure indlreetly has been an efficient way. The text gives a particular description of the recognition methods using the signals of cylinder head vibration and instantaneous rotate speed, and neural network is introduced which is practicable and efficient aceording the diesel engine＇s nonlinear property. In addition, recognition in premises of unknown cylinder pressure is also a new direction.