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JT/T 711-2016: Limits and measurement methods of fuel consumption for commercial vehicle for passenger transportation
JT/T 711-2016
Limits and measurement methods of fuel consumption for commercial vehicle for passenger transportation
JT/T 711-2016
JT
TRANSPORTATION INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 03.220.20
R 06
Registration number.
Replacing JT 711-2008
Limits and measurement methods of fuel
consumption for commercial vehicle for
passenger transportation
Issued on. December 30, 2016 Implemented on. April 01, 2017
Issued by. Ministry of Transport of the People’s Republic of China
Table of Contents
Foreword ...3 
1 Scope ...6 
2 Normative references ...6 
3 Terms and definitions ...6 
4 Limit of fuel consumption ...7 
5 Measurement methods ...7 
Appendix A (Normative) Verification items of vehicle ...15 
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces JT 711-2008 “Limits and measurement methods of fuel
consumption for commercial vehicle for passenger transportation”.
As compared with JT 711-2008, in addition to editorial changes, the main
changes of this standard are as follows.
- ADJUST the structure of the entire text;
- MODIFY the textual description of the applicable fuel in the “Scope”;
CLARIFY that the fuel is a single fuel (see clause 1; clause 1 of the 2008
version);
- MODIFY the guide language of the “Normative references”; ADD some
standard reference entries; MODIFY the standard name of GB 1589 (see
clause 2; clause 2 of the 2008 version);
- DELETE terms and definitions of no-load and full-load (clause 3.1 and 3.2
of the 2008 version);
- MODIFY the expression of the name of commercial diesel vehicle for
passenger transportation in the “limit of fuel consumption”; ADJUST the
limit of fuel consumption of commercial vehicle for passenger transportation;
SPECIFY the date of implementation (see clause 4; clause 5 of the 2008
version);
- ADJUST the contents of “Verification of vehicle”, moving the verification of
size and mass parameters into a newly-added clause, making partial
modification of the original standard (see clauses 5.1.1, 5.1.2; clause 4.1 of
the 2008 version);
- MODIFY the contents that “the vehicle’s tire pressure, fuel, lubricant
(grease), brake fluid, brake air-pressure, engine coolant, etc.shall comply
with the provisions of GB/T 12534 and vehicle manufacturers”; ADD such
information as the brake air-pressure and engine coolant (see clause 5.2.3;
clause 4.2.3 of the 2008 version);
- MODIFY the tire’s selection principle (see clause 5.2.4; clause 4.2.4 of the
2008 version);
- ADD the requirements for the maximum allowable error/accuracy grade for
“engine tachometer” and “weighing instrument” (see clause 5.2.5; clause
4.2.5 of the 2008 version);
- ADD the calculation method for fuel consumption in accelerated-driving
conditions (see clause 5.5.2);
- ADD the calculation method for fuel consumption in idle conditions (see
clause 5.5.3);
- MODIFY the calculation method for comprehensive fuel consumption (see
clause 5.5.4; clause 4.5 of the 2008 version);
- ADD the evaluation indicators and calculation methods for “comprehensive
fuel consumption per unit passenger turnover” (see clause 5.5.5);
- ADD and DELETE some verification items in Appendix A (Table A.1; Table
A.1 of the 2008 version).
This standard was proposed by the Department of Transportation Services of
the Ministry of Transport.
This standard shall be under the jurisdiction of the National Road Transport
Standardization Technical Committee (SAC/TC 521).
Main drafting organizations of this standard. Highway Science Research
Institute of the Ministry of Transport, Shandong Provincial Transportation
Department Road Transportation Administration, China Heavy Duty Truck
Group Co., Ltd., Xiamen Jinlong United Automobile Industry Co., Ltd., Nanjing
Iveco Automobile Co., Ltd., Beiqi Foton Motor Co., Ltd., Jiangling Motors Co.,
Ltd., Anhui Jianghuai Automobile Co., Ltd., Anhui Hefei Automobile Passenger
Transport Co., Ltd., National Automobile Quality Supervision and Inspection
Center (Xiangyang), National Bus Quality Supervision and Inspection Center,
Changchun Automobile Testing Center, Hainan Tropical Vehicle Test Co., Ltd.,
National Automobile Quality Supervision and Inspection Center (Beijing
Tongzhou).
The main drafters of this standard. He Yong, Han Libo, Liu Li, Li Huimin, Cai
Fengtian, Liu Wei, Zhang Hongwei, Song Shangbin, Wang Wei, Zhang Xueli,
Li Hao, Bai Shaobo, Pu Songai, Jin Jie, Song Zhenye , Su Jiang, Chen
Weiqiang, Su Jiazhu, Liu Fengyu, Fu Cheng, Liu Minghua, Zeng Sanhua, Yang
Junhua, Liu Tianming, Chen Xunxiao, Wang Wei.
Limits and measurement methods of fuel
consumption for commercial vehicle for
passenger transportation
1 Scope
This standard specifies the limits and measurement methods of fuel
consumption for commercial vehicle for passenger transportation.
This standard applies to commercial vehicle for passenger transportation that
uses diesel or gasoline as a single fuel and has a maximum total mass of more
than 3500 kg.
2 Normative references
The 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 standard.
GB 1589 Limits of dimensions, axle load and masses for motor vehicles,
trailers and combination vehicles
GB/T 3730.1 Motor vehicles and trailers - Types - Terms and definitions
GB/T 3730.2 Road vehicle - Masses - Vocabulary and codes
GB/T 3730.3 Motor vehicles and towed vehicles - Dimensions of vehicles -
Terms and definitions
GB/T 12534 Motor vehicles - General rules of road test method
GB/T 12545.2 Commercial vehicle - Fuel consumption test method
JT/T 325 Type dividing and class rating for commercial motor-vehicles of
passenger transport
3 Terms and definitions
The terms and definitions as defined in GB/T 3730.1, GB/T 3730.2, GB/T
5.2.2 The meteorological conditions and preparation of test vehicle during the
test shall comply with the provisions of GB/T 12534.
5.2.3 Vehicle’s tire pressure, fuel, lubricant (grease), brake fluid, brake air-
pressure, engine coolant, etc.shall comply with the provisions of GB/T 12534
and vehicle manufacturers.
5.2.4 Test vehicle’s tires are selected in order according to the following
principles.
a) When the vehicle may be equipped with bias tires and radial tires, it shall
select the bias tires;
b) When the vehicle may be equipped with tires of different outer diameters,
it shall select the tires of small outer diameters;
c) When the vehicle may be equipped with tires of different cross-sectional
widths under the same outer diameter of the tire, it shall select the tires
with a large cross-sectional width.
5.2.5 The main test instruments and the requirements for the maximum
allowable error/accuracy grades are as follows.
a) Measuring instrument of vehicle’s speed. the maximum allowable error is
±0.5%;
b) Fuel flow meter. the maximum allowable error is ±0.5%;
c) Timer. the minimum division value is 0.1 s;
d) Engine tachometer. the maximum allowable error is ±1%;
e) Weighing instrument. the accuracy grade is grade-3 and above.
5.2.6 During the test, it shall close the vehicle’s windows, cab’s vent and air-
conditioners.It only allows for the equipment necessary ...