LPG-柴油双燃料发动机电控喷气系统设计

介绍了LPG-柴油双燃料发动机电控喷气系统的硬件系统、软件系统及实时监控系统的没计。以P87C552单片机为控制单元的核心，采用高速开关型数字电磁阀作为执行元件，采用实时多任务的控制软件没计方法，建立发动机管理系统。以LR6105柴油机为样机，进行电控LPG一柴油发动机的改装试验。结果表明：该控制系统能够对掺烧LPG量进行精确控制，使得改装后发动机的碳烟排放大幅度降低，同时又可兼顾HC、CO排放在法规允许范围内。

The Design of Electronically Controlled Gas Injection System of Duel Fuel Engines

the design of electronically controlled gas injection system of duel fuel engines was Introduced: Such as the structure of hardware, the design of software and the real-time adjusting system. The P87C552 single-chip microprocessor was used as the kernel of electronic control unit (ECU), the high speed digital solenoid valve was used as the key component of the actuator. Real-time multitask control method was applied for the software to manage the engine. This system was matched with the LR6105 diesel engine. The results show that this electronic control system can control the injection of LPG accurately so that the smoke emission was reduced largely, at the same time, the emissions of HC and CO were controlled in allowed range.