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柴油机采用电子控制喷射是一种新技术,它有不同方式,但都是对缸内高压喷射的电子控制,其难点在于高速强力电磁阀的驱动和基于角度的喷射实时控制软件。介绍了电控泵 -管 -嘴柴油喷射系统中电控单元的研究与开发。采用高频脉宽调制功率驱动电路进行电磁阀驱动,并以电流信号反馈。应用闭环喷射控制软件实现驱动电流的智能控制、喷射始点和喷油期的实时控制
Diesel electronic control injection is a new technology, it has different ways, but are electronic control of high pressure injection in the cylinder, the difficulty lies in the high-speed powerful solenoid valve actuation and angle-based injection real-time control software. The research and development of electronic control unit in electronically controlled pump - pipe - nozzle diesel injection system is introduced. Using high-frequency pulse width modulation power drive circuit for solenoid valve drive, and the current signal feedback. Application of Closed-Loop Injection Control Software to Realize Intelligent Control of Drive Current, Real-time Control of Injection Starting Point and Fuel Injection Period