GB/T 35349-2017 PDF EnglishUS$145.00 · In stock · Download in 9 seconds
GB/T 35349-2017: Parking Brake Performance - Test Methods for Vehicles Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 35349-2017: Parking Brake Performance - Test Methods for Vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT35349-2017GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.180 T 40 Parking Brake Performance Test Methods for Vehicles Issued on: DECEMBER 29, 2017 Implemented on: JULY 01, 2018 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Terms and Definitions ... 4 4 Test Conditions ... 5 5 Test Methods ... 5 Bibliography ... 10ForewordThis Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard was proposed by and under the jurisdiction of National Technical Committee for Standardization of Operating Safe Technology and Testing Equipment (SAC/TC 364). Drafting organizations of this Standard. Foshan Analytical Instrument Co., Ltd., Electronic Division of China Measurement & Test Technology Research Institute, Zhejiang Jiangxing Auto Inspection Equipment Co., Ltd., Nanjing Institute of Measurement and Testing Technology, Guangdong Zhaoqing Huayu Machine Equipment Co., Ltd., and Gansu Institute of Metrology. Chief drafting staffs of this Standard. He Guihua, Yang Chunsheng, Tian Songpo, Xu Ziliang, Zhou Shensheng, Liu Feng, Yang Xiaocheng, and Gao Decheng. Parking Brake Performance Test Methods for Vehicles1 ScopeThis Standard specifies the parking brake performance test methods for vehicles. This Standard is applicable to all kinds of vehicles and combination of vehicles running on China’s roads.2 Normative ReferencesThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB 7258 Safety Specifications for Power-Driven Vehicles Operating on Roads GB/T 13564 Roller Opposite Forces Type Automobile Brake Tester GB 21861 Items and Methods of Motor Vehicles Safety Technology Inspection GB/T 28529 Platform Brake Tester GB/T 28948 Commercial Vehicle – Front Towing Attachments GB 32087 Towing Devices for Light-Duty Vehicle3 Terms and DefinitionsThe following terms and definitions and those ones stipulated in GB 7258 and GB 21816 are applicable to this document. 3.1 Parking brake performance The parking capability of vehicle on the ramp. 3.2 Parking ramp 5.3.2 Test methods 5.3.2.1 The tested vehicle is gliding at a speed of 5km/h ~ 10km/h; after placing the transmission in the neutral (the vehicle with automatic transmission can be placed in the Shift “D”); the vehicle can be driven to the flat slab steadily and upright. 5.3.2.2 When the parking brake shafts of the vehicle are on the flat slab; operate the parking brake control device as per the requirements of 5.1.2.2; then measure the parking brake force value. 5.3.2.3 When the tested wheels are on the flat slab, maintain the vehicle stationary; measure the static wheel load of each wheels. 5.3.2.4 The parking brake ratio is the percentage between the sum of the measured parking force of each parking shafts and the sum of all shafts (static) loads. 5.4 Traction test methods 5.4.1 Facilities requirements 5.4.1.1 The measurement range of the traction parking tester shall generally be no less than 7000daN (or meet the requirements of the instrument instruction manual). 5.4.1.2 The test area shall be flat, hard and clean cement or asphalt pavement; the pavement adhesion coefficient shall be no less than 0.7. 5.4.1.3 The traction devices on the front and rear parts of the vehicle, and their fixings shall not b e damaged, failed, broken or deformed to affect the normal use. 5.4.2 Test methods 5.4.2.1 Drive the tested vehicle into the test area, use service brake to stop the vehicle steadily. 5.4.2.2 Place the transmission of the tested vehicle into natural; operate the parking brake control device as per the requirement of 5.1.2.2; then release the service brake control. 5.4.2.3 Use the traction parking tester to tow the tested vehicle in the positive and negative directions; the direction of the traction force shall be parallel to the ground and parallel to the vehicle longitudinal centerline. 5.4.2.4 The instrument shall increase the traction force smoothly and slowly, the maximum traction force applied to the vehicle shall be calculated as per Formula (1). ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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