1 Scope
This standard specifies the limits and measurement methods of fuel consumption for motorcycles and mopeds.
This standard is applicable to motorcycles and mopeds driven by spark-ignition engine and compression-ignition engine.
This standard is not applicable to the vehicles only consuming gas fuel or alcohol fuel.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 5378 Methods of Road Test for Motorcycles and Mopeds
GB 14622-2016 Limits and Measurement Methods for Emissions from Motorcycles (CHINA IV)
GB 18176-2016 Limits and Measurement Methods for the Emissions of Pollutants from Mopeds (CHINA IV)
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB 14622-2016 and GB 18176-2016 and the following apply.
3.1
Type I test
measurement of the average fuel consumption under the specified conditions of operating cycle
3.2
Type II test
measurement of the average fuel consumption at constant speed
3.3
reference speed
the traveling speed when carrying out fuel consumption test (Type II test)
4 Limits of Fuel Consumption
4.1 Calculation methods
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Limits of Fuel Consumption
5 Measurement Methods of Fuel Consumption
6 Type Approval Extension
7 Standard Implementation
Annex A (Normative) Description of Motorcycles and Mopeds Products
Annex B (Normative) Measurement Methods, Devices and Calculation Methods of Fuel Consumption
Annex C (Normative) Requirements for Type Approval Certificate Extension
