关键词: 噪音, 转向电机, 调谐器管, 1/4波长管

Abstract: This article systematically describes the noise generation and propagation mechanism of the pure electric bus electronic hydraulic power steering system (EHPS). For different noise sources, The control strategy of the steering motor is modified, the inner curve of the stator of the steering pump is adjusted, and the tuner tube is added. Through the real vehicle contrast test. The improvement measures are confirmed, and the noise of steering system can be effectively reduced.

Key words: Noise, Steering motor, Noise reduction tube, 1/4 wavelength tube