Standard No.:	GB 11557-2026
English Name:	Stipulation protecting drivers from being injured by motor vehicle steering mechanism
Chinese Name:	防止汽车转向机构对驾驶员伤害的规定
Chinese Classification:	T26    Vehicle body (cab) and accessories
Professional Classification:	GB    National Standard
ICS Classification:	43.040.60 43.040.60    Bodies and body components 43.040.60
Source Content Issued by:	SAMR, SAC
Issued on:	2026-04-30
Implemented on:	2027-1-1
Status:	to be valid
Superseding:	GB 11557-2011 The stipulation protecting drivers from being injured by motor vehicle steering mechanism
Target Language:	English
File Format:	PDF
Word Count:	10500 words
Translation Price(USD):	315.0
Delivery:	via email in 1~5 business day

GB 11557-2026 Stipulation protecting drivers from being injured by motor vehicle steering mechanism English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS National Standard of the People's Republic of China ‌GB 11557-2026 Stipulation protecting drivers from being injured by motor vehicle steering mechanism 防止汽车转向机构对驾驶员伤害的规定 Issue date: 2026-03-31 Implementation date: 2026-10-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 General Requirements 5 Technical Requirements 6 Test Methods 7 Same Type Determination 8 Implementation of the Standard Bibliography Provisions for the protection of the driver from the steering mechanism in vehicles 1 Scope This document specifies the general requirements, technical requirements, test methods and same type determination for protecting the driver from injury by the steering mechanism during frontal collisions. This document applies to M₁ and N₁ category vehicles and multipurpose trucks. 2 Normative References The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB 11551 Protection of the occupants in the event of a frontal collision for motor vehicle GB 11552 Interior fittings of passenger cars GB/T 20913 Protection of the occupants in the event of an offset frontal collision for passenger car GB/T 31498 Postcrash safety requirement for electric vehicle ISO 6487 Road vehicles — Measurement techniques in impact tests — Instrumentation 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 steering wheel device The component used by the driver to change and maintain the direction of travel of the vehicle. 3.2 steering wheel support device The component used to support the steering wheel device. 3.3 general steering wheel device A steering wheel device that can be installed on multiple vehicle types. NOTE: Differences in the connection method between this steering wheel device and the steering wheel support device do not affect its impact characteristics. 3.4 steering wheel rim A component that withstands external forces and has a certain stiffness and strength. [Source: GB/T 35360-2017, 5.1.1.1] 3.5 steering wheel hub A component that connects the steering wheel support device and the steering wheel device. [Source: GB/T 35360-2017, 5.1.1.3, modified] 3.6 steering wheel spoke A component that connects the steering wheel rim and the steering wheel hub. [Source: GB/T 35360-2017, 5.1.1.2] 3.7 centre of the steering wheel hub The intersection of the hub surface and the axis of rotation of the steering wheel device. 3.8 plane of the steering wheel device The plane passing through the centre line of the steering wheel rim. 3.9 steering mechanism A mechanism consisting of the steering wheel device, the steering wheel support device and its attachments, the steering actuation device, and other components that absorb energy when the steering wheel device is impacted. 3.10 safety airbag A flexible device that automatically deploys and cushions the contact between an occupant and the internal components of the passenger compartment by means of compressed gas in the event of a severe vehicle collision. 3.11 passenger compartment The space that accommodates occupants, enclosed by the roof, floor, side panels, doors, glazing, front and rear panels or rear seat back support panels, as well as electrical protection barriers and enclosures that prevent occupants from contacting live parts. [Source: GB/T 19596-2017, 3.1.2.2.5] 3.12 head impactor A hemispherical rigid headform with a mass of 6.8 kg and a diameter of 165 mm. 3.13 kerb mass The mass of the vehicle in running order, excluding the driver, passengers and cargo. NOTE: With the fuel tank (if any, filled to 90 % of its capacity) and/or onboard energy storage device, and with coolant, lubricant, etc., to the manufacturer‘s requirements, and including onboard tools and the spare tyre (if provided as standard equipment by the vehicle manufacturer). [Source: GB 20072-2024, 3.2] 3.14 voltage class B electric circuits Electric components or circuits with a maximum operating voltage greater than 30 V a.c. (rms) and less than or equal to 1000 V a.c. (rms), or greater than 60 V d.c. and less than or equal to 1500 V d.c. [Source: GB/T 19596-2017, 3.1.3.2.19] 3.15 rechargeable electrical energy storage system; REESS A rechargeable energy storage system that can supply electrical energy. NOTE: Does not include energy storage systems used solely for starting the engine, lighting or other vehicle auxiliary systems. [Source: GB 18384-2020, 3.1, modified] 4 General Requirements 4.1 The part of the steering wheel device facing the driver that can be contacted by a 165 mm diameter sphere shall be smooth. The radius of curvature of sharp corners or protrusions shall not be less than 2.5 mm. For a steering wheel device equipped with a safety airbag, this requirement is considered to be met if no part that can be contacted by a 165 mm diameter sphere exhibits sharp edges as specified in GB 11552. 4.2 The steering wheel device and its attachments, such as control buttons, shall not affect the driver‘s normal driving (including the risk of catching clothing or accessories) during normal vehicle operation. 5 Technical Requirements 5.1 When tested in accordance with 6.1, the rearward horizontal displacement of the top of the vehicle‘s steering wheel support device relative to a point in the vehicle unaffected by the impact shall not be greater than 127 mm. The upward vertical displacement of the top of the vehicle‘s steering wheel support device relative to a point in the vehicle unaffected by the impact shall not be greater than 127 mm. If a vehicle equipped with a steering mechanism meets the requirements for steering wheel displacement measured at the steering column centre as specified in GB/T 20913 after being tested according to GB/T 20913, the steering mechanism is considered to comply with the requirements of this clause. 5.2 For pure electric vehicles and hybrid electric vehicles with voltage class B electric circuits, after a collision test conducted according to the test method specified in 6.1 or GB/T 20913, the vehicle‘s highvoltage system for propulsion, including the REESS, and the highvoltage components conductively connected to it shall comply with the protection against electric shock requirements, the electrolyte leakage requirements and the REESS requirements specified in GB/T 31498. 5.3 When tested in accordance with 6.2, the horizontal force exerted by the steering wheel device on the human body module shall not be greater than 11110 N. For a steering wheel device equipped with a safety airbag, there shall be no hard flying debris (metal parts, plastic parts) in the direction of the driver and occupants during airbag deployment. If a vehicle equipped with a steering wheel device that has a safety airbag meets the requirements for driver chest compression index and chest viscous index specified in GB/T 20913, the steering mechanism is considered to comply with the requirements of this clause. 5.4 When tested in accordance with 6.3, the cumulative duration for which the deceleration acting on the head impactor exceeds 80 g shall not be greater than 3 ms, and the maximum deceleration shall not be greater than 120 g. For a steering wheel device equipped with a safety airbag, there shall be no hard flying debris (metal parts, plastic parts) in the direction of the driver and occupants during airbag deployment.