| 摘要:针对电控喷油器仿真模型标定过程中,调节变量对不同工况循环喷油量的影响程度不尽相同,使得标定方案不易确定的问题,采用试验设计与分析的方法(DOE),以3个典型工况下的循环喷油量为控制目标,以6个不易测量的流量系数、摩擦因子等为控制因子,分析了控制目标量相对控制因子变动的敏感程度并排出主次关系,从而指导并完成了仿真计算模型的标定。标定结果显示:标定后的模型在各工况下的循环喷油量都达到了比较理想的精度。 |
| 关键词: 电控喷油器 模型 标定 DOE |
|
| Calibration Method of Electronic Controlled Injector’s Simulation Models |
| Zhang Tong,Ping Tao,Xu Jianxin,Zhang Rui,Guo Lijun |
| Shanghai Marine Diesel Engine Research Institute, Shanghai 201108 |
| Abstract:During the calibration of electronic controlled injector simulation models, on different engine load points, adjustment of variables made different effects on fuel injection quantity, which made it hard to determine the calibration program. Using the calibration method based on DOE (Design of experiments) theory,the injection quantities at three typical working points were chosen as control targets. Meanwhile, six difficult-for-measurement parameters, such as discharge coefficient and friction factor, were chosen as the control factors. Sensitivities of control factors were analyzed and the conclusions were used in injector model calibration. It was verified by experiments that the calibrated injector model achieved ideal simulation accuracy on all working points. |
| Key words: electronic controlled injector model calibration DOE〖FL |
