论文部分内容阅读
在传统的发动机ECU开发过程中,需要对ECU中各个电子控制模块进行大量的试验以确定其功能和性能,从而使得整个过程存在开发周期长,开发成本高的缺陷。利用虚拟车辆标定与验证系统可以大大的降低开发的成本以及周期,并对一些难以实际测试的故障以及工况,提供有效的模拟,通过这些,可以有效的排除可能存在的故障。整个虚拟车辆标定及验证系统建立在硬件在环测试的原理与应用基础上,使用Matlab的运行环境。结合发动机基础标定参数,进行发动机建模与配置,使其与实际发动机相匹配,采用实验室自主研发的发动机管理系统EMS。最后,对设计的虚拟车辆进行验证,并进行简单的测试与实际台架相比较,并对测试结果进行分析。
In the traditional engine ECU development process, each electronic control module in the ECU needs a large number of tests to determine its function and performance, so that the whole process has the defects of long development cycle and high development cost. The use of virtual vehicle calibration and verification system can greatly reduce the cost and cycle of development, and provide some effective simulation of faults and working conditions which are difficult to be actually tested. Through these, the possible faults can be effectively eliminated. The entire virtual vehicle calibration and verification system is based on the principle and application of the hardware in-loop test, using Matlab’s operating environment. Combined with engine calibration parameters, the engine modeling and configuration, to match with the actual engine, the use of laboratory independent research and development of engine management system EMS. Finally, the design of the virtual vehicle validation, and simple test compared with the actual bench, and the test results were analyzed.