Abstract: Based on the development of the active suspension system for a certain passenger car model, the problem of noise, vibration, harshness (NVH) noise generated by the oil pump controller under static vehicle conditions was encountered. To address the root cause of the problem, we formulated different control strategy plans and conducted verification and testing of the oil-pump controller at different cutoff frequencies. Finally, by combining the response characteristics of the oil-pump controller and the NVH test results, we determined that the optimal control strategy plan is condition 3, where the cutoff frequency of the oil-pump controller in SiC open-tube state is 8 000 Hz. This plan meets the functional development and NVH noise performance indicators of the activesuspension system, thereby enhancing vehicle comfort and handling stability.

Key words: active-suspension; oil-pump controller; SiC open-tube state; NVH

摘要： 基于某乘用车车型开发主动悬架系统中遇到油泵控制器在整车静态下产生噪声、振动 与声振粗糙度（NVH）噪音问题，文章针对问题发生原因制定了不同的控制策略方案，开展 了油泵控制器在不同截止频率下验证与测试，最后结合油泵控制器响应特性和 NVH 测试结 果，得出了工况 3 即油泵控制器 SiC 开管状态的截止频率为 8 000 Hz 是最佳的控制策略方案， 能够满足主动悬架系统功能开发和 NVH 噪音性能指标，从而提升车辆舒适性和操控稳定性。

关键词: 主动悬架；油泵控制器；SiC 开管状态；NVH