中文摘要：

为进行均质充量压缩燃烧的研究,开发一套进气门升程和相位、排气门升程和相位等4个参数均可独立自由控制的全可变气门机构.同时为研究可变气门技术的控制策略,开发一套全可变气门机构控制策略研究试验平台,包括一台变频调速电动机、液压及润滑系统、全可变气门机构控制单元及其试验管理系统,该平台可在模拟发动机运行的条件下进行气门机构控制策略研究和评价.对可变升程和可变相位闭环控制策略的试验研究结果表明,整套策略可以实现进排气门升程在0～9.7 mm之间、相位在60°范围内连续、快速、稳定的调节,为提高汽油机的效率和实现均质充量压缩燃烧发动机的运行控制奠定了基础.

英文摘要：

In order to study homogeneous charge compression ignition HCCI combustion, a fully variable valve train is developed. It includes four independent variable parameters of both inlet and exhaust variable valve timing ＆ lift. Meanwhile, with the aim of investigating variable valve actuation （VVA） control strategy, a research platform which includes an AC motor, a 16-bit electronic control unit, avhydraulic system and a PC for experiment management is established to simulate engine operation. VVA control strategy is researched and evaluated detailedly for the platform can simulate engine＇s operation. After deep experimental investigation of a close loop control strategy for variable valve timing and variable valve lift is achieved. It can adjust the inlet ＆ exhaust valve lift between 0 mm and 9.7 mm continuously. Furthermore, the valve timing can vary within 60° continuously. Experimental results show that the control strategy can control the dynamic process quickly, precisely and stably, which establishes the foundation of improving gasoline engine＇s efficiency and controlling HCCI combustion.