GB 20997-2024 Limits and evaluation targets of fuel consumption for light-duty commercial vehicles
1 Scope
This document specifies the limits of fuel consumption for light-duty commercial vehicles, the calculation method and evaluation indicators with regard to corporate average fuel consumption, the requirements for conformity of production and the judgment on the same type.
This document is applicable to all Category N1 vehicles with a maximum design speed greater than or equal to 50 km/h and Category M2 vehicles with a maximum design gross mass not exceeding 3,500 kg, including vehicles capable of using gasoline or diesel fuel, pure electric vehicles, fuel cell vehicles, and vehicles using gas fuel and alcohol ether fuel.
This document is not applicable to special purpose vehicles.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 15089 Classification of power-driven vehicles and trailers
GB/T 17350 Terms marks and designation for special purpose vehicles and special trailers
GB 18352.6-2016 Limits and measurement methods for emissions from light-duty vehicles (CHINA 6)
GB/T 18386.1-2021 Test methods for energy consumption and range of electric vehicles - Part 1: Light-duty vehicles
GB/T 19233-2020 Measurement methods of fuel consumption for light-duty vehicles
GB 19578-2021 Fuel consumption limits for passenger cars
GB/T 19596 Terminology of electric vehicles
GB/T 19753-2021 Test methods for energy consumption of light-duty hybrid electric vehicles
GB 27999-2019 Fuel consumption evaluation methods and targets for passenger cars
GB/T 29125 Test methods for fuel consumption of CNG vehicles
GB/T 34598 Plug-in hybrid electric commercial vehicles - Specifications
GB/T 37340 Conversion methods for energy consumption of electric vehicles
GB/T 43252-2023 Test methods of energy consumption and range for fuel cell electric vehicles
QC/T 1130-2021 Measurement methods of fuel consumption for methanol vehicles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15089, GB/T 17350, GB 18352.6-2016, GB/T 19596 and GB 27999-2019 apply.
4 Type approval application
4.1 For a specific vehicle type or a family of vehicles, the type approval application of fuel consumption shall be submitted by the manufacturer or its legal representative.
4.2 The type approval application report of the corresponding vehicle type specified in Annexes A to C shall be attached at the time of application, but the contents of A.7, B.7, C.5.3, C.6.3, C.7.3 and C.7.4 shall not be filled in.
4.3 A sample vehicle representing the approved vehicle type or family shall be submitted to the inspection body responsible for the type approval test.
Contents
Foreword iii
1 Scope
2 Normative references
3 Terms and definitions
4 Type approval application
5 Determination of fuel consumption
6 Fuel consumption limits
6.1 General
6.2 Fuel consumption limits for vehicle types
6.3 Description of vehicle types with special construction
7 Calculation method and evaluation indicators with regard to corporate average fuel consumption
7.1 General
7.2 Target value of fuel consumption for vehicle types
7.3 Target value of corporate average fuel consumption (TCAFC)
7.4 Corporate average fuel consumption (CAFC)
7.5 Requirements for annual corporate average fuel consumption
8 Conformity of production
9 Judgment on the same type
10 Implementation of this standard
10.1 Fuel consumption limits
10.2 Corporate average fuel consumption
Annex A (Normative) Type approval report/type approval application report on fuel consumption of gasoline, diesel, bi-fuel, and dual-fuel vehicles
Annex B (Normative) Fuel consumption type approval report/type approval application report of NOVC-HEVs
Annex C (Normative) Energy consumption type approval report/type approval application report of OVC-HEVs
