This paper describes the Electronic Control Unit(ECU) of the electronic control fuel injection diesel engine. Function analysis and system construction designing about ECU are discussed. Micro process unit that is the kernel of ECU system is selected.

• 本文对电子控制燃油喷射柴油机的电控单元ECU进行了功能分析和系统结构设计，对其内核即单片机进行了选型，并对ECU软件部分进行了概要设计，对系统开发计划进行了初步的探讨。