保險式車輛安全氣囊控制器設計

Safety Assurance Airbag Ignition Controller Design

本論文所發展的保險式安全氣囊ANFIS控制器（safety assurance Airbag ANFIS controller），可以判斷車輛撞擊時的嚴重性，提供安全氣囊電子控制單元（ECU）擊發與否之依據。根據數十種撞擊波的特性，發展出來的控制器，能夠在10ms時即判斷是否為「嚴重撞擊」，若非「嚴重撞擊」，則於20m、至40ms之問判斷出撞擊為「中度撞擊」或是「輕度撞擊」。ANFIS控制器根據ECU中的加速儀的感測加速度值進行運算判斷，首先判斷撞擊是否為「嚴重撞擊」，若判斷結果非「嚴重撞擊」，則在撞擊後40ms內，判斷是為「中度撞擊」亦或「輕度撞擊」。最後以法國Antoliv公司所提供的二組共二百多筆數據，以及四組典型的數據進行模擬；對於所有的撞擊波數據，可以在有效的時問內分辨出撞擊的嚴重性，並以實驗板進行實體驗證，得到可靠的結果。

The developed Safety Assurance Airbag ANFIS Controller can identify vehicle impact severity, meanwhile, it can provide crash information to the ECU to decide whether the airbag should be triggered or not. According to data from dozens of crashes, the controller can judge whether the crash is 'severe' or not within 10 ms. If it is not a severe crash, the controller can judge whether the crash is a 'moderate' or a 'light' crash within 20-40 ms. The ANFIS controller measures G values from an accelerometer to identify first, if the crash is severe or not. If it is not a severe crash, the ANFIS controller will continuously work to identify if the crash is moderate or light severity, within 40 ms.Finally, two groups of data from more than 200 crashes supplied by the French Autoliv company were tested, as well as data from 4 groups of typical cases. For all crash data, the ANFIS controller can distinguish the severity of a crash quickly enough to be effective in deploying the airbag. Using a DSP experimental board, all results were as expected and as desired.