Reducer Abnormal Noise Analysis and Control Strategy Optimization for an Electric Vehicle Braking at Low Speed Condition

Jun Zhang; Wenbing Huang; Guowei Dou; Yongzhong Bao

doi:10.16578/j.issn.1004.2539.2022.05.023

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Reducer Abnormal Noise Analysis and Control Strategy Optimization for an Electric Vehicle Braking at Low Speed Condition

Development·Application | 更新时间：2022-09-24

- Reducer Abnormal Noise Analysis and Control Strategy Optimization for an Electric Vehicle Braking at Low Speed Condition
- Journal of Mechanical Transmission Vol. 46, Issue 5, Pages: 155-159(2022)
- 作者机构：
  
  1.吉利汽车研究院（宁波）有限公司，浙江宁波 315336
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.05.023
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张军,黄文兵,窦国伟等.某纯电动车低速制动工况的减速器异响分析与控制策略优化[J].机械传动,2022,46(05):155-159.

Zhang Jun,Huang Wenbing,Dou Guowei,et al.Reducer Abnormal Noise Analysis and Control Strategy Optimization for an Electric Vehicle Braking at Low Speed Condition[J].Journal of Mechanical Transmission,2022,46(05):155-159.
张军,黄文兵,窦国伟等.某纯电动车低速制动工况的减速器异响分析与控制策略优化[J].机械传动,2022,46(05):155-159. DOI： 10.16578/j.issn.1004.2539.2022.05.023.

Zhang Jun,Huang Wenbing,Dou Guowei,et al.Reducer Abnormal Noise Analysis and Control Strategy Optimization for an Electric Vehicle Braking at Low Speed Condition[J].Journal of Mechanical Transmission,2022,46(05):155-159. DOI： 10.16578/j.issn.1004.2539.2022.05.023.

摘要

由于电驱传动系统的“欠阻尼”动力学特性，在某些特定的瞬态过渡工况，纯电动车容易发生传动系统的冲击噪声或整车抖动问题，严重地降低了车辆的驾驶舒适性。以某前置前驱纯电动车的低速制动工况异响问题为案例，系统地阐述了电驱传动系统异常噪声的测试分析与排查过程，提出了潜在的电驱系统异响机理与控制策略方法；并在不改变传动系统硬件结构的条件下，通过电机转矩过零滤波策略和主动阻尼控制的改进优化，消除了该车型在减速制动过程的异响问题。实车测试验证了改进方案的有效性。这对于解决类似的电驱动系统瞬态振动噪声问题，具有较重要的工程参考价值。

Abstract

Due to the underdamping dynamics characteristics of the electric drivetrain system， the pure electric vehicle is prone to shock noise or vehicle shudder under the transient conditions of acceleration/deceleration， taking off or cruise， which seriously reduces the vehicle driving comfort. The abnormal noise problem of a front drive pure electric vehicle under low-speed braking condition is taken as an example， and the test analysis and investigation process are systematically expounded. The potential abnormal noise mechanism and control strategy are proposed. Moreover， without modifying the hardware architecture of the transmission system， the abnormal noise is eliminated through the improvement and optimization of the motor torque zero-crossing filtering strategy and the active damping control. The actual vehicle test also verifies the effectiveness of the improved scheme， which has important engineering reference value for solving the transient vibration and noise problems.

关键词

纯电动汽车主动阻尼控制转矩滤波控制转速波动齿轮间隙异响

Keywords

EV （Electric vehicle）Active damping controlTorque filter controlSpeed fluctuationGear backlashAbnormal noise

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