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Estimation of engine output torque based on improved BP neural network
Pages: 104-108
Year: Issue:  3
Journal: Electric Machines and Control

Keyword:  hybrid electric vehicleneural networktorqueestimationoptimal stopping rule;
Abstract: 针对混合动力汽车控制系统的开发过程,提出一种应用改进BP神经网络对发动机输出转矩进行估计的方法.根据在发动机实验台中所测得的部分样本数据,将传统的BP网络误差函数进行改进,建立了发动机输出转矩估计模型,并利用最优停止法对网络进行训练,避免了过拟合现象.实验结果表明,利用改进的BP网络对发动机输出转矩进行估计,减轻了网络训练负担,降低了网络训练的误差,提高了发动机输出转矩估计的精确度.
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