GB11551-2014
The protection of the occupants in the event of a frontal collision for motor vehicle
汽车正面碰撞的乘员保护
GB 11551-2014 is a current mandatory Chinese national standard for The protection of the occupants in the event of a frontal collision for motor vehicle. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jan 1, 2015.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to M1 category vehicles, N1 category vehicles with a maximum design total mass not exceeding 2500kg, and multipurpose goods vehicles. It is mandatory for all specified vehicle types entering the Chinese market. The standard specifically regulates the protection of front-row outboard seat occupants during frontal collisions.
Technical requirements
The standard specifies comprehensive performance criteria for occupant protection. It mandates specific limits for the Head Performance Criterion (HPC), Neck Injury Criterion (NIC), and Thoracic Compression Criterion (ThCC). Manufacturers must ensure these injury metrics remain within strict thresholds during impact. Additionally, the standard regulates the Femur Force Criterion (FFC) and the chest viscous criterion. General safety requirements include strict regulations on door locking systems, mandating that doors must not open during the collision, and front door latches must not engage. Post-crash occupant evacuation capabilities are also strictly evaluated. Furthermore, the standard outlines requirements for fuel system integrity, prohibiting continuous leakage exceeding specified rates post-impact. The standard also introduces specific requirements for airbag warning labels. Vehicles equipped with frontal airbags must display durable warning information regarding the extreme dangers of using rear-facing child restraint systems on seats protected by active airbags. Compliance with these labeling and warning requirements is mandatory.
Testing methods
The primary evaluation involves a full-scale frontal impact test where the vehicle is propelled into a fixed, reinforced concrete barrier at a speed of 50 km/h. The test utilizes 50th percentile Hybrid III dummies positioned in the front outboard seats. Measurements are recorded using specialized data channels to assess head, neck, chest, and femur injuries. The standard also details a sled test procedure (Appendix E) as an alternative simplified test for vehicle type modifications.
FAQs
What products are regulated under GB 11551-2014?
It regulates M1 vehicles, N1 vehicles (under 2500kg), and multipurpose goods vehicles, focusing on frontal collision occupant protection.
Are there any specific requirements for airbags in this standard?
Yes, vehicles with frontal airbags must have durable warning labels indicating the danger of placing rear-facing child seats in airbag-protected positions.
What is the test speed for the frontal collision?
The vehicle must impact the fixed barrier at a speed of 50 km/h (with a 0 to -2 km/h tolerance).
The summary above provides a high-level overview of GB 11551-2014. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 11551-2014 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- T09
- ICS
- 43.020
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology
Relationships
Replaces:GB 11551-2003