Comfort and Quietness

The three main factors indicating vehicular comfort are respectively noise, vibration, and harshness (NVH). Noise refers to noises and unwanted sounds. Vibration refers to the vibrations transmitted from the engine and tires. Harshness refers to vibrations sensed through the steering, seats, and floor due to level differences in the road surface. Accordingly, damping technology is important for improving comfort, and damping characteristics are evaluated.
Additionally, the materials used for car interiors must comply with VOC and other interior environmental regulations. Interior comfort related to odors is also being pursued, and ride comfort (based on sensory evaluations) while vehicles are in motion has started to be quantified.

Evaluations of the attenuation characteristics of shock absorbers

The bottom components of automobile will be applied load from various angles, during driving. At the time of trial, in order to determine the quality of the design result, it makes the performance evaluation in an environment that simulates the actual running. In the case of simulating a real run, you need to make the load from multiple directions at the same time. In this case, by combining a plurality of jacks, a multi-axis system which realizes an environment close to actual running is enabled.

Interior odors

Solving odor problems requires identifying the substances causing the odor. However, accurate identification requires relevant knowledge, such as knowing which types of compounds can cause odors, the odor quality, and threshold levels for sensing odors. In this page introduce odor analysis using an Off-flavor analysis system.

Quantitation of sensory tests

When driving a car, the human brain is doing a variety of high-level cognitive processing. If the stress of the brain is high during driving, due to lowering of attention, mistakes will be considered to be more likely to occur. As a result, there is a possibility that lead to the for accident. In order to achieve a comfortable driving, with as much as possible reduce the stress of the brain involved in driving, it is important to the corresponding immediately if needed. By measuring the brain function during driving, it has been attempted to grasp the cognitive work load on the brain.

Quantitation of sensory tests

Interior odors