With our craftsmanship, capabilities and design, we are a supplier that provides total proposals for automotive interiors.
Acoustic and analysis technologies
We pioneered the introduction of “chassis dynamometers (CHDY),” as extensive acoustic analysis equipment, to be able to perform vehicle running condition tests using actual vehicles.
We make full use of various tests and simulations, especially on the acoustic properties of products and materials, in order to be able to correspond to every situation, and we perform safety checks repeatedly over and over again. And while strengthening our quality improvements, we have furthermore become able to suggest sets of carpets and other parts that can minimize noise in the vehicle interior.
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Permanent magnet (PM) dynamometer type overhang chassis dynamometer
Conventional CHDYs
1) Externally powered air cooled type
Because a cooling fan is used, the noise generated by the fan makes it a poor noise testing environment.
2) Large space required for equipment
The roller portion and other equipment (such as the dynamometer) need to be installed in another area using a soundproof sleeve.
[Features of our equipment setup]
1) Low noise levels
- By changing to an oil immersion cooling system, cooling fans are not required, enabling an 8 dB reduction in noise level compared with conventional equipment.
2) Space-saving configuration
- By using a PM dynamometer, the size of the dynamometer is more compact.
- By using an overhang chassis dynamometer, the required installation space is reduced.
- Compared to conventional CHDY noise test systems, our equipment achieves a one-third reduction in the space required.