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JJF 1671-2017: Calibration Specification for Parking Brake Performance Testers for Vehicles
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| JJF 1671-2017 | English | 279 |
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Calibration Specification for Parking Brake Performance Testers for Vehicles
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JJF 1671-2017
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Basic data | Standard ID | JJF 1671-2017 (JJF1671-2017) | | Description (Translated English) | Calibration Specification for Parking Brake Performance Testers for Vehicles | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Word Count Estimation | 12,157 | | Date of Issue | 2017-11-20 | | Date of Implementation | 2018-02-20 | | Regulation (derived from) | AQSIQ Notice 2017 No. 103 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine | JJF 1671-2017: Calibration Specification for Parking Brake Performance Testers for 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.
(Motor vehicle parking brake performance test equipment calibration specification)
National Metrology Technical Specification of the People's Republic
Motor vehicle parking brake performance test device calibration specification
Released on.2017-11-20
2018-02-20 implementation
The General Administration of Quality Supervision, Inspection and Quarantine issued
Motor vehicle parking brake performance test
Device calibration specification
Focal Point. National Legal Measurement Management Measurement Technical Committee
Main drafting unit. Zhejiang Institute of Metrology
Participated in the drafting unit. Shaoxing Shangyu District Vehicle Testing Center Co., Ltd.
Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd.
Shanghai Xipai Automation Instrument Engineering Co., Ltd.
Hangzhou Bo Testing Technology Co., Ltd.
This Code entrusts the National Legal Metrology Management Metrology Technical Committee to explain
The main drafters of this specification.
Yan Yan (Zhejiang Institute of Metrology)
Lin Feng (Zhejiang Institute of Metrology)
Shao Jianwen (Zhejiang Institute of Metrology)
Participate in the drafters.
Yan Yulin (Shaoxing Shangyu District Vehicle Testing Center Co., Ltd.)
Zhou Shensheng (Zhejiang Jiangxing Automobile Testing Equipment Co., Ltd.)
Jiang Yuchen (Shanghai Xipai Automation Instrument Engineering Co., Ltd.)
Wang Hui (Hangzhou Bo Test Technology Co., Ltd.)
table of Contents
Introduction (II)
1 Scope (1)
2 References (1)
3 Overview (1)
4 Measurement characteristics (1)
4.1 Measurement range (1)
4.2 Resolution (1)
4.3 Instrument Drift (1)
4.4 indication error (1)
4.5 indication repeatability (1)
5 Calibration conditions (1)
5.1 Environmental conditions (1)
5.2 Measurement standards and other equipment (2)
6 Calibration items and calibration methods (2)
6.1 Measurement range and resolution (2)
6.2 Instrument Drift (2)
6.3 indication error (2)
6.4 indication repeatability (3)
7 Expression of calibration results (3)
8 re-study interval (4)
Appendix A Calibration Certificate (inside page) format (5)
Appendix B Example of Uncertainty Evaluation of Braking Force Indication Error Calibration (6)
Introduction
This specification is JJF 1071-2010 "National Metrology Calibration Specification Writing Rules", JJF 1001-2011 "General
Measurement Terms and Definitions, JJF 1059.1-2012 "Measurement Uncertainty Evaluation and Representation" is a basic series of specifications
Make it.
According to the national standard GB 7258-2012 "Safety Technical Conditions for Motor Vehicle Operation" and GB 21861-2014
"Motorcycle Safety Technical Inspection Projects and Methods" does not have the test for the requirements of motor vehicle parking brake performance test.
In the case of a ramp, the vehicle can be tested in accordance with the relevant standards using the instrument in accordance with the relevant standards to test the parking brake performance. Current country
There are mainly traction and performance test devices for traction and slide type.
This specification is the first release.
Motor vehicle parking brake performance test device calibration specification
1 Scope
This specification is applicable to the parking brake performance test device for traction and skateboard type vehicles (hereinafter referred to as parking test equipment).
Calibration).
2 reference files
This specification refers to the following documents.
GB 7258-2012 Technical conditions for the safety of motor vehicles
GB 21861-2014 Motor vehicle safety technology inspection project and method
For dated references, only dated versions apply to this specification; undated quotations
The latest version (including all amendments) applies to this specification.
3 Overview
The parking test device measures the braking force of the motor vehicle in the parking brake state on a flat road surface, and can be integrated
Instrument or measuring device for evaluating the performance of parking brakes. Traction parking test device detects the station of the vehicle at the time of parking
The vehicle braking force and the skateboard parking test device detect the parking brake force of each wheel (shaft).
The traction type parking test device is mainly composed of a traction device, a force sensor and a meter. Skateboard parking test equipment
The main components are composed of traction slides, force sensors and meters.
4 Measurement characteristics
4.1 Measurement range
The traction type parking test device has a measurement range of not less than (0~7000) daN;
The measurement range of the board of the skateboard parking test device is not less than (0~2300) daN.
4.2 Resolution
The resolution is no more than 2daN.
4.3 Instrument drift
The instrument drift does not exceed ±5 daN.
4.4 indication error
The indication error does not exceed ± 3%.
4.5 indication repeatability
The indication repeatability is not more than 3%.
Note. The above indicators are not used for qualification determination and are for reference only.
5 Calibration conditions
5.1 Environmental conditions
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