1引言汽车电喷发动机的电子控制器(ECU)是电控系统的核心部件,它内含输入/输出接口电路、A/D变换器、存储器和CPU等。在汽油机电控燃油喷射系统的研制与开发过程中,传统的发动机台架试验需要投入相当的规模,包括大量试验设备、资金投入、人员投入以及相当繁琐的试验任务与操作 1 Introduction The electronic control unit (ECU) of the automobile EFI engine is the core component of the electronic control system, which includes the input / output interface circuit, A / D converter, memory and CPU. In the process of developing and developing gasoline engine electronic fuel injection system, the traditional engine bench test needs to invest a considerable scale, including a large number of test equipment, capital investment, personnel input and quite complicated test tasks and operations