GB13057-2023

Strength of seats and their anchorages of passenger vehicles

客车座椅及其车辆固定件的强度

GB 13057-2023 est une norme nationale chinoise obligatoire en vigueur : Strength of seats and their anchorages of passenger vehicles. Secteur : Électronique. Thème principal : Sécurité des produits. Entrée en vigueur : 1 janv. 2024.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

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Champ d’application

This standard applies to the strength requirements and testing methods for forward-facing passenger seats and their anchorages in M2 and M3 category buses (specifically Class II, Class III, and Class B). It also covers restraining barriers installed in front of these seats. This standard does not apply to rearward-facing seats, lateral-facing seats, or driver seats.

Exigences techniques

The standard mandates that all seats and restraining barriers must pass specific dynamic test requirements to ensure occupant containment and protection. Seats must effectively limit the forward displacement of unrestrained dummies during a collision, ensuring they do not exceed a defined geometric boundary. Manufacturers must ensure that seat adjustment and locking systems remain securely locked throughout the impact. For occupant protection, the standard specifies strict injury criteria for belted HYBRID III dummies, including limits for the Head Injury Criterion (HIC), chest acceleration, chest compression, and femur compression force. Post-test, seat structures must not exhibit complete separation or create sharp edges that could cause injury. Additionally, safety belts used to restrain dummies must not rupture, and their anchorages must remain functional. The standard also outlines specific requirements for vehicle anchorages. If a seat type has already been tested with a specific anchorage, alternative anchorages may undergo a static test as an alternative. During this static test, anchorages must not completely separate, though permanent deformation is permitted. Installation requirements dictate that seat reference heights must be no less than 1 meter, and specific height differentials between adjacent seats must be maintained unless tested at actual installation heights. Manufacturers may also choose a combined test method to evaluate multiple rows of seats simultaneously.

Méthodes d’essai

The standard defines several rigorous testing procedures, including a dynamic sled test simulating a frontal collision at a specific velocity change with defined deceleration curves. It also includes an occupant protection test focusing on belted dummy injury metrics, and a combined test method evaluating multiple seat rows simultaneously. Furthermore, a static test is specified for vehicle anchorages, applying a calculated horizontal force to a rigid representative structure. Measurements are conducted using specific data channels and frequency classes for dummies and sled accelerations.

Questions fréquentes

What products are regulated under GB 13057-2023?

It applies to forward-facing passenger seats and their anchorages in M2 and M3 category buses (Class II, III, and B). It also covers restraining barriers installed in front of seats. It does not apply to driver seats, rearward-facing, or lateral-facing seats.

Are there any major updates from the previous GB 13057-2014 version?

The 2023 version introduces new occupant protection tests using belted HYBRID III dummies, adds a combined test method, and updates injury criteria to include chest compression metrics. It also removes the previous transition period and introduces a two-stage implementation timeline for new and existing vehicle types.

How does GB 13057-2023 differ from international standards?

The standard references several national standards, such as GB 11551-2014 for occupant protection and GB 14166 for safety belts. While its dynamic testing methodologies and injury criteria (like HIC and chest compression) share similarities with international regulations, manufacturers must specifically comply with GB 13057-2023 parameters and implementation stages for the Chinese market.

The summary above provides a high-level overview of GB 13057-2023. To ensure complete compliance for your passenger vehicles entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 13057-2023 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Sécurité
CCS: T42
ICS: 43.080.20
Autorité compétente: Ministry of Industry and Information Technology
Comité technique: National Technical Committee on Automobiles of Standardization Administration of China

Relations

Remplace:GB 13057-2014