This paper is based on Honda product development and maturation related to noise and vibration. During the development, it was discovered that the vibration level of the vehicle did not meet the desired level.
These studies are aimed to reduce the noise and vibration felt in vehicle by improving the powertrain as the main source of the vibration. During the investigation, it was discovered that manufacturing process change from tooth shaving to tooth honing could have significant impact on the final tooth profile that essentially impact the noise and vibration level of the vehicle.
The studies focus on bias control to improve the vibration level. This paper will show complete relationship between actual gear profile, vibration level of unit as powertrain, and finally airborne noise level of the complete vehicle as the final product. The studies resulted in shifting bias control target for the gear tooth profile, which translates to improved noise and vibration level in vehicle.