基于半实物仿真的测试性验证系统设计与实现

Design and Implementation of Testability Verification System Based on HILS

针对当前机载设备研制过程中缺乏测试性验证试验平台,不能有效地支撑航空装备研制阶段的测试性设计工作,提出了一种机载设备测试性验证系统;通过半实物仿真的方法实现对飞机燃油测量系统的基本功能及运行方式的模拟,避免了因建模不准确而造成的仿真误差,提高了仿真置信度;采用探针故障注入、仿真故障注入、软件故障注入等多种方法,实现了被测系统多种典型故障的模拟,从而对机载设备的故障检测、隔离性能进行验证;通过试验验证了系统可以实现对预期故障模式的自动注入并完成基于半实物仿真的测试性验证。

For the situation lacking of testability validation platform for the current airborne equipment developing, cannot effectively support the testability design during the equipment developing stage, an airborne equipment test verification system is put forward. Achieve the basic functions of the aircraft fuel measurement system and operation mode by hardware in the loop simulation （HILS） technology, avoi- ding simulation tolerance caused by inaccurate modeling and improving the degree of confidence of the simulation. Using several ways such as probe fault injection , simulation fault injection, software fault injection to achieve a variety of typical fault simulation of the system under test, thus to verify the airborne equipment fault detection and isolation performance. The result of experiment shows that the system can inject the expected failure modes automatically and complete testability validation based on HILS technology.