We have recently installed new testing equipment in the Automotive Testing Lab at the Utsunomiya Technical & Product Center and have begun using it as an NV (*) evaluation test bench for drivetrain units.
*NV: Noise, Vibration
This facility features a test bench for drive system units manufactured by Ono Sokki, installed in a semi-anechoic chamber surrounded by sound-absorbing materials. This enables the measurement of radiated sound and vibration, as well as performance evaluation of transmission characteristics, of drive system units. The background noise level in the semi-anechoic chamber is 35 dB or less (A) (near the center of the room), providing capabilities equivalent to those of major automobile manufacturers' R&D facilities. It can accurately measure the sound emitted by the object being measured, even at low levels.
Furthermore, the facility is equipped with an adjoining battery simulation device to support motor evaluation testing of electric vehicles, and a new type of lubricating oil temperature control system has been installed. This system enables quick and highly accurate control of oil temperature changes that affect loss measurement in the drivetrain unit, thereby reducing the time required for loss measurement to half of the conventional time (compared to our previous system).
In today's automotive industry, the increasing prevalence of electric vehicles has led to improved vehicle quietness, but this has also brought to light new challenges regarding the NVH (Noise, Vibration, and Harshness) performance of components that were previously overlooked. As a result, there is a growing need for solutions to noise and vibration problems. Furthermore, in vehicle manufacturing, model-based development (MBD), a development method that utilizes simulations with models, is becoming mainstream. Through our facilities, which can handle a wide range of needs from efficiency measurement to NVH evaluation testing, we contribute to our customers' noise and vibration countermeasures and the advancement of model-based development.
* Noise, Vibration, Harshness
Ono Sokki 's ONE STOP SOLUTION
Our company has equipped our Yokohama Technical Center with an Acoustic Lab, which features world-class anechoic and semi-anechoic chambers, where we conduct state-of-the-art acoustic and vibration measurement and analysis, as well as research related to sound and vibration commissioned by our clients.
Furthermore, we have equipped our Yokohama Technical Center and Utsunomiya Technical & Product Center with Automotive Testing Labs, which allow us to evaluate everything from individual engines to actual vehicle conditions. In addition to contract testing requested by our customers, we also engage in joint research and development.
By integrating these sound and vibration testing technologies with automotive testing technologies, we aim to become a total solution provider in automotive development.
