动力传动参数辨识与整车加速车内噪声仿真  

Identification of Power Transmission Parameters and Simulation of Interior Noise During Vehicle Acceleration

作　　者：宋雨 许京 史继霞 SONG Yu;XU Jing;SHI Jixia(Research and Development Institute,China First Automobile Group Co.,Ltd.,Changchun 130022,China;National Key Laboratory of Advanced Vehicle Integration and Control,China First Automobile Group Co.,Ltd.,Changchun 130022,China)

机构地区：[1]中国第一汽车集团有限公司研发总院,长春130022 [2]中国第一汽车集团有限公司高端汽车集成与控制全国重点实验室,长春130022

出　　处：《噪声与振动控制》2025年第1期211-216,255,共7页Noise and Vibration Control

摘　　要：针对整车加速车内噪声仿真的传动参数难以获取问题,提出一种基于实验数据的传动系参数辨识与整车噪声仿真方法。首先建立5自由度传动系Simulink模型,以通过整车实验获取的变速器输入轴转速波动与驱动轴扭矩波动为辨识目标,通过遗传算法辨识传动系阻尼、刚度、惯量等关键参数,满足仿真同实验误差最小的条件。将完成参数辨识的传动系模型集成至整车有限元模型,计算发动机激励通过传动系、总成悬置等路径传递至车内所引起的整车噪声,最后对比噪声的仿真与实验结果,验证模型和方法的有效性,该方法可用于整车开发过程中对车内加速噪声直接进行风险预估与性能优化。In response to the difficulty in obtaining transmission parameters for interior noise simulation during vehicle acceleration,a method for identifying transmission parameters based on experimental data was proposed and the vehicle noise simulation were conducted.Firstly,a 5-DOF Simulink model of the transmission system was established,and the speed fluctuation of the transmission input shaft and the torque fluctuation of the drive shaft obtained from experiment were set as identification targets.The key parameters of the transmission system model,such as damping,stiffness and inertia were identified using genetic algorithm to meeting the condition of minimum error in both simulation and experiment.The powertrain model that had parameters identified was integrated into the vehicle finite element model,and the interior noise of the vehicle from engine excitation through paths such as the powertrain and suspension was calculated.The simulation and test results were compared to verify the effectiveness of the model and method.This method can be used for direct risk assessment and optimization of interior noise in the vehicle development process.

关 键 词：声学 传动系 轰鸣噪声 转速波动 扭矩波动 参数辨识 

分 类 号：U467.493[机械工程—车辆工程]