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GB/T 12543-2009 English PDF (GBT12543-2009)

GB/T 12543-2009 English PDF (GBT12543-2009)

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GB/T 12543-2009: Acceleration performance test method for motor vehicles

This Standard specifies the test methods for vehicle acceleration performance. This Standard applies to M and N-class vehicles.
GB/T 12543-2009
ICS 43.020
T 04
GB
National Standard
of the People's Republic of China
Replacing GB/T 12543-1990
Acceleration performance test method
for motor vehicles
ISSUED ON. MARCH 23, 2009
IMPLEMENTED ON. JANUARY 1, 2010
Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
Standardization Administration Committee of the People's Republic
of China (SAC)
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Test conditions ... 5
4 Test procedure ... 6
5 Data processing ... 8
Appendix A ... 10
Foreword
The consistency between this Standard AND SAE J1491 MAR95 " Acceleration performance test method for motor vehicles" and JISD 1014 "Acceleration performance test method for motor vehicles" is non-equivalent.
This Standard replaces GB/T 12543-1990 "Acceleration performance test method for motor vehicles".
Compare with GB/T 12543-1990, the main changes of this Standard are as follows. - ADD normative references. The reason is that vehicle classification, trial quality and load distribution shall adopt the provisions defined in above standards. - Full-throttle starting acceleration test. the maximum end-speed is only recorded up to 100 km/h, and ADD 400m test; full-throttle over-taking acceleration test. initial speed is 60 km/h, the maximum end-speed is only recorded up to 100 km/h. The main idea of above practice is to make a unified measurement
indicator as possible for different models and types vehicles.
- ADD operational description of the automatic transmission and manual
transmission.
- ADD judgment criteria for validity of test data.
Appendix A of this Standard is informative.
This Standard was proposed by the National Development and Reform Commission. This Standard shall be administered by the National Automotive Standardization Technical Committee.
This Standard was drafted by organization. China Automotive Technology and Research Center.
The main drafters of this Standard. Gao Feng, Li Gongqing, Jin Qi, Zhang Hui, and Liu Jianjun.
The previous standard replaced by this Standard is.
- GB 1334-1977, GB/T 12543-1990.
Acceleration performance test method
for motor vehicles
1 Scope
This Standard specifies the test methods for vehicle acceleration performance. This Standard applies to M and N-class vehicles.
2 Normative references
The provisions contained in following documents, through the reference of this Standard, constitute the provisions of this Standard. For dated references, subsequent amendments (excluding corrigenda) or revisions do not apply to this Standard, however, the parties who enter into agreement based on this Standard are encouraged to study if these latest versions are applicable. For undated references, the latest versions apply to this Standard.
GB/T 12428 Laden mass calculating method for buses
GB/T 12545.1 Measurement methods of fuel consumption for automobiles. Part 1. Measurement methods of fuel consumption for passenger cars
GB/T 12545.2 Commercial vehicle. Fuel consumption test method
GB/T 15089 Classification of power-driven vehicles and trailers
3 Test conditions
3.1 Meteorological Conditions
The test shall be conducted when atmospheric temperature is at ??C - 40??C. There shall be no fog, rain or hail. Wind speed shall not be more than 3 m/s. 3.2 Road conditions
Road surface of concrete road or asphalt (or similar) road shall be clean, dry and flat. The longitudinal slope shall not exceed 0.1%.
3.3 Fuels and lubricants (grease)
The grades and specifications of the fuel and lubricant (grease) used by the test car shall comply with the technical requirements. The same batch of fuel and lubricant (grease) shall be used for various performance tests within the trial.
3.4 Vehicle preparation
3.4.1 Run-in
Vehicle shall be run-ined. Run-in mileage shall not be less than the provisions of the vehicle technical conditions. Wheel tread shall have at least 75% and at good condition. Before the test, all of the tires shall be run-ined for at least 100 km. 3.4.2 Vehicle inspection
The vehicle shall be inspected and necessarily adjusted according to the manufacturer's technical requirements.
3.4.3 Test equipment installation
After the test equipment is installed, it shall not hinder the vehicle operations and shall not change the vehicle driving characteristics.
3.4.4 Vehicle test mass and loading distribution
3.4.4.1 M1 class vehicles AND N1 class vehicles of which the maximum design total mass is less than 2t
Vehicle test mass and loading distribution shall be loaded in accordance with the provisions relating to road test in GB/T 12545.1.
3.4.4.2 M2, M3 class cars AND N class vehicles of which the maximum design total mass is less than 2t
Vehicle test mass shall be loaded in accordance with the provisions relating to road test in GB/T 12545.1.
The loading of M2, M3 class cars shall be evenly distributed according to GB/T 12428; loading distribution of N class vehicles shall be in accordance with GB/T 12534. 3.5 Vehicle preheating
Prior to test, the vehicle shall be preheated for driving.
4 Test procedure
4.1 Performance test of full-throttle starting acceleration
The vehicle shall be full-throttle accelerated from 0 to 100 km/h (if 90% of the Item
1st group 2nd group 3rd group ...
Forth Back Forth Back Forth Back
T1 T2 T3 T4 T5 T6
Arithmetic mean ??/s
Standard deviation SD/s
Variation coefficient k/%

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