柴油机进气加温控制系统软件设计

Software Design of Diesel Engine Intake Air Heating Control System

摘要: 针对柴油机低温起动过程中对进气加温装置的控制需求，设计了基于单片机80C51F040的柴油机进气加温控制系统软件，通过采集进气温度、大气压力、供电电压、电热塞电流等模拟量参数，对电磁泵、电热塞、风机等加温执行部件进行协同控制，实现加温装置在不同环境和工况下电热、供油、进气优化匹配，各执行部件高效、有序、可靠运行。文中详细阐述了系统总体构成、软件构架、软件功能模块的设计思路及流程。软件设计过程中采用层次化、模块化设计理念；创新双电热塞驱动功率器件热负荷控制技术、起动加温过程风/油/电协同调控技术等关键技术。软件设计完成后通过检测工装进行试验，经验证软件能控制进气加温系统有效可靠运行，满足使用需求。

Abstract: According to the control requirements of the intake air heating device which works during the starting process of the diesel engine in a low-temperature environment, the software used for the intake air heating control system of the diesel engine is built based on a C8051F040 single-chip. By collecting several analog parameters such as the intake air temperature, atmospheric pressure, power supply voltage and glow plug current, the heating components(electromagnetic pump, glow plug and fan) are controlled cooperatively to achieve heating, oil supply, and intake air matching, to make every actuator work efficiently, orderly and reliably. This paper describes in detail the overall composition of the system, software architecture, software function module design ideas and processes. During the software design process, hierarchical and modular design concepts are adopted, and innovative technologies like heat load management of dual glow plug driving power devices and wind/oil/electricity regulation coordinately are used. After the software design is completed, the test is carried out by the inspection tooling. It is verified that the intake air heating device works well under the control of software, which meets the use requirements.