【摘要】 内燃机性能数据的测试分析是促进内燃机设计研制、生产开发、性能改进和可靠性提高的重要手段,阐述了基于Windows操作系统下,如何利用VxD实现实时数据采集的技术与实践.并结合实际介绍了作者所成功移植到Windows操作系统下的内燃机性能测试分析系统的硬件结构、软件设计及其功能特点.实验证明,本系统达到了预期效果,并大大提高了采集实时性、采集数据量和数据处理精度,其采集数据可信度更高,采样性能更加稳定.更多还原

【Abstract】 Testing and analysis for I.C.engine performance data is an important method to improve the design,manufacture,exploitation,performance,and reliability of engine.This article expounds the technique and operation of real time data collected with VxD in Windows operating system.Then the hardware structure,software designing and function features of the data-acquisition and analysis system for I.C.engine performance,which is developed from Dos to Windows operating system,has been presented in this paper.The results obtained through experiments reveal that this system can work correctly,just as our expectation.In contrast with the former one,this system has greatly improved the real-time,the sampling-data volume,and data-processing precision.The measuring confidence levels of this system are improved much,and much more stable.更多还原