With the rapid development of China's automobile industry in recent years, the market's demand for vehicle performance indicators and driving comfort continues to rise. As one of the important indicators of the overall quality of automobiles, theNVH PerformanceIncreasingly, there is a high level of concern.

Excellent NVH performance not only significantly enhances driving comfort and luxury, which in turn strengthens brand image and product competitiveness, but also helps maintain driving concentration, reduce fatigue, and has a direct impact on driving safety. Therefore, NVH has become one of the most important technological thresholds for automobiles to move towards premiumization and differentiation.

During automotive NVH testing.CAN signal acquisition is criticalFor example, through the acquisition of vehicle speed signals, wind noise, road noise and transmission noise can be analyzed under different speed conditions. For example, through the acquisition of vehicle speed signals, wind noise, road noise and transmission system noise can be analyzed under different vehicle speed conditions; while engine speed signals can be used for phase analysis and problem diagnosis to help pinpoint the phase characteristics of the noise source.

In addition, CAN signals such as throttle opening, drive torque and electrical system power also play a key role in NVH testing. These signals can correlate vehicle operating conditions with vibration and noise data, helping engineers pinpoint problems and continuously optimize the vehicle's NVH performance.