KIA ES85810-00 Column Linings Fixing Force Performance

The standard “KIA ES85810-00 Performance of the fixing force of pillar linings” developed by Hyundai-Kia Motors Corporation, the oldest motor vehicle manufacturer in Korea, describes the test methods and judgment criteria used to verify the performance of the fixing force of pillar linings provided in all tests related to the deployment of curtain airbags. This standard is applied to the pillar upholstery of the vehicle to which the curtain airbag is applied.

For the purposes of this standard, the following terms and definitions apply:

• The opening force refers to the force that must be applied to the pillar liner to open the curtain air bag to release it from between the pillar liner and the body panel at the beginning of the curtain air bag deployment.
• The anchoring force refers to the force required to firmly anchor the column liner to the vehicle body until the cabin is fully opened to prevent separation of the column liner from obstructing CAB opening or injuring passengers.

The general requirements in this standard are described as follows:

• If the contents of the drawings differ from this specification, the drawings take precedence.
• This standard prescribes performance tests to perform quality control certification (in-process) and production verification tests not shown on the drawings.
• The quality control department should periodically request verification tests of parts, and the frequency should be determined in consultation with the supplier company (seller).
• Test results and related materials (including test samples or photographs) should be made available to the engineering design and relevant teams.
• It must be consistently demonstrated with production parts that the requirements are met, in accordance with the minimum sample quantity and testing frequency prescribed by the quality control policy.

The pillar (pillar) trim is a decorative component with high aesthetic and tactile requirements located between the doors of a car. The materials used for the upper pillars must provide high toughness to ensure ductile behavior during airbag deployment. For this reason, extensive polyolefin material is generally used for the upper pillars. This material offers a cost-effective solution to meet increasingly stringent safety and emission standards, as well as to meet weight reduction targets.

Polyolefin materials are primarily lightweight. They offer excellent stiffness and strength-to-weight ratios, allowing for thinner and lighter upper columns without compromising safety. They also offer superior durability and aesthetics. They are scratch and stain resistant for improved durability and visual appeal. They have excellent processability, and faster cycle times increase the efficiency of the manufacturing process. These types of materials feature recycled content to help manufacturers achieve their sustainability goals.

Pillar trim(s) refers to the interior panel that covers the vertical support structure on either side of a vehicle's windshield. The trim acts as an aesthetic covering that conceals the structural components within the pillar.

The primary purpose of automotive pillar upholstery is to provide a sleek, smooth surface to the structural pillars of a vehicle. This upholstery not only improves the appearance of the vehicle interior, but also serves functional purposes. Pillar upholstery is designed to reduce sound, dampen noise, and improve cabin insulation. They are made from a variety of materials, including plastic, composite, and fabric, allowing for a wide range of customization in terms of texture, color, and finish.

Additionally, the performance of pillar covers is important in increasing the durability and longevity of a vehicle’s interior. High anchoring strength helps maintain the integrity of the vehicle and reduces the risk of damage from environmental factors.

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