GB 12676-2014 Translated English Technical requirements and testing methods for commercial vehicle and trailer braking systems [GB English Version]
GB 12676-2014 English Translated Technical requirements and testing methods for commercial vehicle and trailer braking systems
English Name: Technical requirements and testing methods for commercial vehicle and trailer braking systems
Chinese Name: 商用车辆和挂车制动系统技术要求及试验方法
Issued by: AQSIQ AND SAC
Issued on: 2014-10-10
Implemented on: 2015-7-1
Superseding: GB 12676-1999 GB 12676-1999 Systems - Structure, Performance and Test Methods
Language: English
File Format: PDF
Delivery: Immediate delivery
Contents
Foreword1 Scope
2 Normative References
3 Terms and Definitions
4 Specifications
5 Tests and Performance Requirements
6 Approval of Vehicle Type and Extension of Approval
7 Conformity of production (COP)
Annex A (Normative) Procedure for monitoring the state of battery charge
Annex B (Normative) Method of measuring the response time on vehicles equipped with compressed-air braking systems
Annex C (Normative) Provisions relating to energy sources and energy storage devices (energy accumulators)
Annex D (Normative) Provisions relating to specific conditions for spring braking systems
Annex E (Normative) Distribution of braking among the axles of vehicles and requirements for compatibility between towing vehicles and trailers
Annex F (Normative) Test procedure to assess the functional compatibility of vehicles equipped with electric control lines
Annex G (Normative) Inertia dynamometer test method for brake linings
Annex H (Normative) Special requirements to be applied to the safety aspects of complex electronic vehicle control systems
Annex I (Normative) Test conditions for trailers with electrical braking systems
Annex J (Normative) Cases in which Type- I and/or Type-II (or Type-IIA) or Type-III tests do not have to be carried out
Annex K (Normative) Alternative procedures for Type-I and Type-III tests for trailer brakes
Annex L (Normative) Conditions governing the testing of vehicles equipped with inertia (overrun) braking systems
1 SCOPE
This Standard specifies the technical requirements and testing methods for commercial vehicle and trailer braking systems.
This Standard applies to power-driven vehicles of categories M2, M3 and N and trailers of category O, as specified in GB/T 15089.
This Standard does not cover:
Vehicles with a design speed not exceeding 25 km/h;
Trailers which may not be coupled to power-driven vehicles with a design speed exceeding 25 km/h.
2 NORMATIVE REFERENCES
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1 Motor vehicles and trailers-Types-Terms and definitions
GB/T 3730.2 Road vehicle-Masses-Vocabulary and codes
GB/T 5620 Road vehicles - Braking of automotive vehicles and their trailers - Vocabulary
GB/T 5922 Motor vehicles and towed vehicles - Pressure test connection for compressed-air pneumatic braking equipment
GB/T 13594-2003 Antilock braking performance and test procedure for motor vehicles and their trailers
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 20716.1 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - Part 1: Connectors for braking systems and running gears of vehicles with 24V nominal supply voltage
GB/T 20716.2 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - Part 2: Connectors for braking systems and running gears of vehicles with 12V nominal supply voltage
ISO 11992-1 Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 1: Physical and data-link layer
ISO 11992-2:2003 Road vehicles - Interchange of digital information on electrical connections between towing and towed vehicles - Part 2: Application layer for brakes and running gear
3 TERMS AND DEFINITIONS
For the purpose of this document, the following terms and definitions and those given in GB/T 3730.1, GB/T 3730.2, GB/T 5620 and GB/T 15089 apply.
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