混合动力汽车传动系统扭转振动自适应抑制方法  

Adaptive suppression of torsional vibration of hybrid electric vehicle transmission system

作　　者：杜松[1] DU Song(Anhui Communications Vocational and Technical College,Hefei 230051)

机构地区：[1]安徽交通职业技术学院,合肥230051

出　　处：《齐齐哈尔大学学报（自然科学版）》2023年第6期21-26,共6页Journal of Qiqihar University(Natural Science Edition)

基　　金：2020年安徽省高等学校省级教学示范课“汽车电路和电气系统检修”(20sjsfk607);2020年安徽省高等学校质量工程“课程思政示范课程《汽车发动机构造与检修》”(2020szsfkc0310)。

摘　　要：为了提高混合动力汽车舒适性和安全性,提出混合动力汽车传动系统扭转振动自适应抑制方法。依据广义牛顿第二定律扭矩平衡原理,建立传动系统动力学方程和状态空间方程;离散化处理状态空间方程,利用长短期记忆网络,建立传动系统状态变量预测模型;引入理想延迟值时滞补偿离散状态空间方程,得到电机转速;以最小电机-车轮转速差、最小电机动作变化量为目标函数,建立扭转振动自适应控制模型;通过天牛须算法求解模型,实现扭转振动自适应抑制。实验结果表明,该方法可有效降低电机-车轮转速差,实现扭转振动自适应抑制;不同工况下,该方法抑制后电机-车轮转速差较小,具备较优的自适应抑制效果。In order to improve the comfort and safety of hybrid electric vehicles,a torsional vibration adaptive suppression method for the transmission system of hybrid electric vehicles is proposed.Based on the generalized Newton's second law of torque balance principle,the dynamic equation and state space equation of the transmission system are established.The state space equation is discretized,and a long short-term memory network is used to establish a transmission system state variable prediction model.By introducing an ideal delay value time-delay compensation discrete state space equation,the motor speed is obtained.A torsional vibration adaptive control model is established with the minimum motor-wheel speed difference and the minimum motor action change as the objective functions.The model is solved by the Longbull whisker algorithm to achieve torsional vibration adaptive suppression.Experimental results show that this method can effectively reduce the motor-wheel speed difference and achieve torsional vibration adaptive suppression.Under different working conditions,the motor-wheel speed difference is smaller after suppression using this method,indicating superior adaptive suppression effects.

关 键 词：混合动力汽车 传动系统 扭转振动 自适应抑制 神经网络 天牛须算法 

分 类 号：U463.2[机械工程—车辆工程]