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GB/T 24926-2024: Performance and measurement method for braking of all-terrain vehicles
Status: Valid GB/T 24926: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24926-2024 | English | 459 |
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Performance and measurement method for braking of all-terrain vehicles
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GB/T 24926-2024
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| GB 24926-2010 | English | 719 |
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[GB/T 24926-2010] Performance and measurement method for braking of all-terrain vehicles
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GB 24926-2010
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PDF similar to GB/T 24926-2024
Basic data | Standard ID | GB/T 24926-2024 (GB/T24926-2024) | | Description (Translated English) | Performance and measurement method for braking of all-terrain vehicles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | T24 | | Classification of International Standard | 43.040.40 | | Word Count Estimation | 22,237 | | Date of Issue | 2024-03-15 | | Date of Implementation | 2024-10-01 | | Older Standard (superseded by this standard) | GB/T 24926-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 24926-2024: Performance and measurement method for braking of all-terrain vehicles---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 43.040.40
CCST24
National Standards of People's Republic of China
Replaces GB/T 24926-2010
Braking performance requirements and test methods for all-terrain vehicles
Released on 2024-03-15
2024-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Structural and functional requirements 2
5 Braking system test and performance requirements 4
6 Test methods 9
Appendix A (Normative) Braking performance requirements and requirements for Class Y four-wheel all-terrain vehicles (ATVs) and Class Y recreational field vehicles (go-karts)
Test method 15
Appendix B (Normative) Partial failure test and performance requirements for multi-circuit service brake systems 17
Appendix C (Normative) Power brake system failure test and performance requirements 18
Appendix D (Normative) Failure test and performance requirements of linked brake system 19
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document replaces GB/T 24926-2010 "All-terrain vehicle braking performance requirements and test methods" and is consistent with GB/T 24926-2010.
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
---Changed the controller, energy transmission device, service brake system, emergency brake system, multi-circuit service brake system, disconnect engine, initial
Initial brake temperature, wheel lock terms and definitions (see 3.1, 3.2, 3.3, 3.5, 3.6, 3.7, 3.8, 3.10,.2010 edition 3.1,
3.2, 3.3, 3.5, 3.7, 3.9, 3.10, 3.12);
--- Deleted the terms and definitions of independent braking system, anti-lock braking system, initial braking speed and load (see 3.6,.2010 edition
3.8, 3.11, 3.14);
--- Added the terms and definitions of test speed, full load, light load, braking system, brake, power-assisted braking system and maximum speed (see
3.9, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17);
--- Changed the structural and functional requirements (see Chapter 4, Chapter 4 of the.2010 edition);
--- Added the requirements for warning lights of multi-circuit service brake systems and special requirements for equipment of four-wheel all-terrain vehicles (see 4.1.11, 4.2.1.6);
--- Deleted the requirements for ABS warning lights (see 4.1.1.9 and 4.1.1.10 of the.2010 edition);
--- Changed the equipment requirements for multi-purpose all-terrain vehicles (UV) and recreational field vehicles (go-kart), and the functional requirements for parking brake systems (see
4.2.2.1, 4.3.3, 4.1.2.2.1, 4.1.3.3 of the.2010 edition);
--- Added brake system test and performance requirements for Class Y four-wheel all-terrain vehicles (ATV) and Class Y recreational field vehicles (go-kart)
(see 5.1);
--- Changed the test speed deviation requirements, test road surface requirements, environmental conditions requirements, test speed, and brake control force requirements during the test.
Requirements, braking force balance requirements, parking brake test requirements (see 5.2.1.1.2, 5.2.1.3, 5.2.1.4, 5.2.1.6.9, 5.2.1.7.3,
--- Deleted the performance requirements for type 0 brake test (see 5.2.1.3 of the.2010 edition);
--- Added dry braking test of operating the brake controller alone, dry braking of operating the brake controller at the same time, and high-speed braking test
performance requirements for the wet brake test (see 5.2.2.1.3, 5.2.2.1.4, 5.2.2.1.5, 5.2.2.1.6);
--- Added brake system failure requirements (see 5.2.2.4);
--- Added test methods for Class Y four-wheel all-terrain vehicles (ATV) and Class Y recreational field vehicles (go-kart) (see 6.1);
--- The test sequence table has been changed (see 6.2.1, 6.1 of the.2010 edition);
--- Deleted the dry brake test with engine disconnected (0-type test) and the dry brake test with engine connected (0-type test)
Methods (see 6.4 and 6.5 of the.2010 edition);
--- Added dry brake test of operating brake controller alone, dry brake test of operating brake controller at the same time, high-speed braking
Test methods for test and wet brake test (see 6.2.4, 6.2.5, 6.2.6, 6.2.7);
--- Added the braking performance requirements and test methods for Class Y four-wheel all-terrain vehicles (ATV) and Class Y recreational field vehicles (go-kart),
Partial failure test and performance requirements of multi-circuit service brake system, failure test and performance requirements of power-assisted brake system, linkage brake
System failure test and performance requirements (see Appendix A to Appendix D);
--- Deleted the test methods and requirements for the braking performance of all-terrain vehicles equipped with ABS braking systems, the adhesion coefficient (K) and the adhesion
The test method for the braking performance of all-terrain vehicles exported to the United States and the performance requirements (see Appendix.2010)
Appendix A, Appendix B, Appendix C).
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed and coordinated by the National Four-wheel All-Terrain Vehicle Standardization Technical Committee (SAC/TC344).
This document was drafted by. China Merchants Vehicle Inspection and Certification Technology Research Institute Co., Ltd., Shanghai Motor Vehicle Inspection and Certification Technology Research Center Co., Ltd.
Zhejiang Chunfeng Power Co., Ltd., Chongqing Loncin Motorcycle Co., Ltd., Chongqing Runtong Intelligent Equipment Co., Ltd., Zhejiang Taotao Vehicle Co., Ltd.
LIMITED.
The main drafters of this document are. Gong Guobin, Fan Lichang, Wang Jiajia, Ding Jianli, Chen Xiaoping, Zhang Chao, and Cao Matao.
This document was first published in.2010 and this is the first revision.
Braking performance requirements and test methods for all-terrain vehicles
1 Scope
This document specifies the structural and functional requirements, brake system testing and performance requirements, and test methods for all-terrain vehicles.
This document applies to the design, development, production and testing of all-terrain vehicle braking systems.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 24936 Terminology of all-terrain vehicles
3 Terms and definitions
The terms and definitions defined in GB/T 24936 and the following apply to this document.
3.1
Controller
A component directly operated by the driver to provide the energy required for braking or control to the energy transmission device.
3.2
Energy transmission device
A combination of components that connect the functions of the controller and the brake.
3.3
Service brake system servicebrakesystem
A braking system that slows down a moving vehicle.
3.4
Combined brake system; CBS
A service brake system in which the brakes on all wheels are controlled by a single controller.
3.5
Emergency brake system secondary brake system
A second service brake system installed on a vehicle equipped with a linked brake system.
3.6
Braking system that controls the brakes on all wheels.
Note. The system is controlled by a single controller for two or more subsystems. Failure of any subsystem (such as system failure caused by hydraulic pipeline leakage) does not affect the
Other subsystem functions.
3.7
enginedisconnected
The engine is disconnected from the drive wheels.
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