针对当前城市交通系统中的被控对象具有较大的随机性和偶然性，引入了不需要建立精确数学模型的模糊控制。
This design USES fuzzy control theory which doesn't require exact mathematical model because of the randomness of the controlled objects in the current city traffic control system.
考虑到设计参数的随机性，给出了偏曲轴输入少齿差行星减速器设计的可靠性优化数学模型。
Considering the randomization of design parameters, a dependability optimization mathematics model is given for the planet reducer of a few tooth difference with biasing bent shaft.
模糊控制不需建立被控对象的精确数学模型，特别适用于具有较大随机性的城市交通控制。
It is not necessary for fuzzy control to built exact mathematic model about the controlled object, so fuzzy control is applicable especially to control urban traffic with great random characteristic.
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