Based on the suspension model of a homemade car with 5-degree freedom and a road surface model in time domain, the nonlinear spring and damping parameters were optimized in time domain.
针对国产某微型轿车，在建立汽车悬架系统5自由度模型和时域路面模型基础上，对悬架系统的线性弹簧和非线性阻尼参数进行了优化。
Relative errors between the deviation of the real fault symptom parameters and of the fault derived from the model are controlled less than 5%.
故障诊断模型症兆变量与实际故障症兆变量变化值相对误差控制在5%内，且不会对故障类型的判断产生影响；
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