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GB/T 18297-2024: Performance test code for road vehicle engines
Status: Valid GB/T 18297: Evolution and historical versions
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| GB/T 18297-2024 | English | 1239 |
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Performance test code for road vehicle engines
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GB/T 18297-2024
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| GB/T 18297-2001 | English | RFQ |
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Performance test code for road vehicle engines [including MODIFICATION 1]
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GB/T 18297-2001
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PDF similar to GB/T 18297-2024
Standard similar to GB/T 18297-2024 GB/T 19055 GB/T 17692 GB/T 28957.1 Basic data | Standard ID | GB/T 18297-2024 (GB/T18297-2024) | | Description (Translated English) | Performance test code for road vehicle engines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | T11 | | Classification of International Standard | 43.060.01 | | Word Count Estimation | 62,676 | | Date of Issue | 2024-05-28 | | Date of Implementation | 2024-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 18297-2024: Performance test code for road vehicle engines---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 43:060:01
CCST11
National Standards of People's Republic of China
Replace GB/T 18297-2001
Automobile engine performance test methods
Released on 2024-05-28
2024-12-01 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Requirements for measurement error and measurement location 2
5 Calculation of test data 3
6 Control of general test conditions 7
7 Accessories carried by the engine during the test 8
8 Twelve performance test methods 9
9 Test Report 22
Appendix A (Normative) Test Results Summary Table 24
Appendix B (Informative) Engine characteristic curve diagram 27
Appendix C (Normative) Tolerances of Engine Power, Torque and Fuel Consumption 43
Appendix D (Normative) Main parameters of spark ignition engines 45
Appendix E (Normative) Compression ignition engine main parameters table 50
Appendix F (Informative) Engine Test Data Record Sheet 55
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 18297-2001 "Automotive Engine Performance Test Methods": Compared with GB/T 18297-2001, except for the structure
In addition to adjustments and editorial changes, the main technical changes are as follows:
--- Deleted the requirement of "inserting against the direction of air flow" for exhaust temperature sensor, and changed the requirement of measurement error of exhaust temperature sensor:
[See 4:4c) of the:2001 edition];
--- Added the provisions for the measurement location and measurement error of the intake air temperature after intercooling [see e) in 4:4];
--- Changed the accuracy description of the instrument for measuring oil pressure [see 4:5 e), 4:5e of the:2001 edition)];
--- Changed the provisions on the measurement location and measurement error of intake air temperature (see 4:7:1, 4:7:1 of the:2001 edition);
--- Changed the provisions for the measurement location of the intake pressure (see 4:7:2, 4:7:2 of the:2001 edition);
--- Changed the provisions on the measurement location and measurement error of intake air humidity (see 4:7:3, 4:7:3 of the:2001 edition);
--- Changed the symbol of measured air consumption and the name description of ηmo (see 5:1, 5:1 of the:2001 edition);
--- Changed the permissible range of intake air temperature under full load conditions of spark ignition engines [see footnote a of Table 3, footnote a of Table 3 of the:2001 edition]
footnote 1)];
---Added correction factor settings for turbocharged or supercharged engines with atmospheric conditions (temperature and altitude) compensation system
Regulations (see footnote a of Table 3);
--- Deleted the requirement that diesel fuel should not contain smoke suppressant additives (see 6:1 of the:2001 edition);
--- Changed the description of the control conditions of the cooling system temperature (see 6:4, 6:3 of the:2001 edition);
--- Changed the description of the control conditions for fuel temperature (see 6:6, 6:5 of the:2001 edition);
--- Added the description of the control conditions of the intake air temperature after intercooling (see 6:7);
--- Changed the description of the exhaust back pressure control conditions (see 6:8, 6:6 of the:2001 edition);
--- Added the method for selecting the engine speed during data measurement [see 6:11a)];
--- Deleted the conversion method when using metric units (see 6:9 and Appendix H of the:2001 edition);
--- Changed the requirements for accessories of various test engines (see Table 4, Table 4 of the:2001 edition);
--- Deleted the description of some tests that if the spark plug is hot, a cold spark plug can be used (see 8:3:3 of the:2001 edition,
8:8:2:2, 8:9:2, 8:10:2);
--- Changed some test conditions, methods and data collation related contents of the starting test (see 8:1:1, 8:1:2, 8:1:3, 8:1:4,
8:1:1, 8:1:2, 8:1:3, 8:1:4 of the:2001 edition);
--- Changed some test method descriptions and data measurement and collation related contents of the idle test (see 8:2:3, 8:2:4,:2001
Version 8:2:3, 8:2:4);
--- Added requirements for the selection of the measured speed in the test method for power test (see 8:3:4);
--- Changed the description of emission measurement requirements in some tests (see 8:3:5:1, 8:4:4:1, 8:5:4:1, 8:3:5, 8:4:4, 8:5:4:1 of the:2001 edition)
8:5:4);
--- Changed the requirements for the selection of test conditions in the load characteristic test (see 8:4:3, 8:4:3 of the:2001 edition);
--- Changed the description of "throttle" in the test method of mechanical power loss test (see 8:7:3, 8:7:3 of the:2001 edition);
--- Changed the description of the test method for the compression pressure test in the uniformity test of each cylinder (see 8:8:2:3,:2001 edition
8:8:1:3);
--- Added the content of the average effective pressure test of each cylinder (see 8:8:5);
--- Changed the operation process of the oil draining and weighing method in the oil consumption test (see 8:9:3:2:1, 8:9:3:1 of the:2001 edition);
--- Added relevant content of engine oil dilution test (see 8:11);
--- Added relevant content of the maximum thermal efficiency test (see 8:12);
--- Changed the requirements for filling in the electronic and electrical system in the main parameters table of the spark ignition engine (see Appendix D, D:12,:2001
(A12 in Appendix A of the:2014 edition):
This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China:
This document is under the jurisdiction of the National Technical Committee on Automotive Standardization (SAC/TC114):
This document was drafted by: Dongfeng Motor Group Co:, Ltd:, Dongfeng Commercial Vehicle Co:, Ltd:, Xiangyang Daan Automobile Testing Center Co:, Ltd:,
China Automotive Research Institute Automotive Inspection Center (Tianjin) Co:, Ltd:, Chongqing Xiaokang Power Co:, Ltd:, Ningbo Geely Luoyou Engine Parts Co:, Ltd:,
Chongqing Changan Automobile Co:, Ltd:, China First Automobile Group Co:, Ltd:, Weichai Power Co:, Ltd:, Guangxi Yuchai Machinery Co:, Ltd:
Ltd:
The main drafters of this document are: Zhang Jiandong, Zhou Yang, Chen Long, Gu Shanyu, Wang Kan, Xiang Yaoming, Wu Chunling, Li Jinyin, Zhang Yiquan, Li Dongsheng,
Yang Liling, Zhang Guoqiang, Pu Yunping, Hao Wei, Pang Bin, Wang Yingxin:
The previous versions of this document and the documents it replaces are as follows:
---First published in:2001 as GB/T 18297-2001;
---This is the first revision:
Automobile engine performance test methods
1 Scope
This document describes a bench test method for automotive engine performance, which is used to assess the performance of automotive engines:
This document applies to gasoline and diesel engines for M and N automobiles: The engines are reciprocating and rotor-type, without free-running
Plug type:
The same shall apply to vehicle engines using other fuels:
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 1883:1 Reciprocating internal combustion engines - Vocabulary - Part 1: Engine design and operation terms
GB/T 15089 Classification of motor vehicles and trailers
3 Terms and definitions
The terms and definitions defined in GB/T 1883:1, GB/T 15089 and the following apply to this document:
3:1
Measured effective power observedbrakepower
The power output of the engine under actual intake conditions1):
1) The various powers used in this document refer to the speed and torque values measured under different conditions at full load (i:e: the throttle is in the fully open position) and calculated:
The power obtained is in kilowatts (kW):
3:2
Corrected brake power
Correct the measured effective power to the power under standard intake conditions:
3:3
Net power
The engine is tested with all accessories, at the corresponding speed measured at the end of the engine crankshaft or its equivalent, and with standard intake air
State-corrected power:
Note: A full set of accessories refers to all accessories that are consistent with the vehicle's carrying status and serve the engine body, in accordance with the provisions of Chapter 7:
3:4
Gross power
The engine is tested with only the accessories necessary to maintain operation, at the corresponding speed measured at the end of the engine crankshaft or its equivalent:
and the power corrected according to the standard intake state:
3:5
Rated power
The total power output at the specified rated speed according to the specific purpose of the engine by the manufacturer:
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