GB27999-2025

Fuel consumption evaluation methods and targets for passenger cars

乘用车燃料消耗量评价方法及指标

GB 27999-2025 es una norma nacional china obligatoria vigente: Fuel consumption evaluation methods and targets for passenger cars. Sector: Electrónica. Enfoque: Métodos de ensayo. Entrada en vigor: 1 ene 2026.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard applies to M1 category vehicles (passenger cars), including gasoline, diesel, hybrid, pure electric vehicles, and fuel cell vehicles. It is mandatory for all manufacturers and importers of passenger cars in China. It establishes the evaluation methods and targets for corporate average fuel consumption (CAFC) and CO2 emissions.

Requisitos técnicos

GB 27999-2025 specifies the evaluation methods and targets for passenger car fuel consumption. It introduces the calculation methods for Corporate Average Fuel Consumption (CAFC) and newly added Corporate Average CO2 Emissions. The standard defines specific target values based on vehicle curb weight and seating capacity. Starting from 2026, manufacturers must meet strict annual ratio requirements between their actual CAFC and target values, reaching 100% by 2030. Additionally, it introduces specific calculation methods for traditional energy passenger cars and removes the previous vehicle type multipliers.

Métodos de ensayo

The standard references various testing methods to determine type-approval values for fuel consumption. It utilizes the Global Unified Light Vehicle Test Cycle (WLTC) as specified in GB/T 19233-2020 and GB/T 19753-2021. For pure electric vehicles, energy consumption is determined per GB/T 18386.1-2021 and converted to gasoline equivalent. Fuel cell vehicles are tested according to GB/T 43252-2023. Production consistency must be maintained in accordance with these referenced testing standards.

Preguntas frecuentes

What products are regulated under GB 27999-2025?

It regulates M1 category vehicles (passenger cars), including gasoline, diesel, hybrid, pure electric, and fuel cell vehicles.

Are there any updates from the previous version of GB 27999?

Yes, the 2025 version introduces Corporate Average CO2 Emissions calculations, adds requirements for traditional energy passenger cars, and removes vehicle type multipliers. It also sets a phased reduction of the CAFC ratio from 130% in 2026 to 100% in 2030.

How is fuel consumption determined for electric and hybrid vehicles?

Fuel consumption for pure electric vehicles is converted from energy consumption using the simple conversion method in GB/T 37340-2019. Hybrid vehicles are tested using the WLTC as per GB/T 19753-2021.

The summary above provides a high-level overview of GB 27999-2025. To ensure complete compliance for your passenger cars entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 27999-2025 today to access all detailed parameters, calculation formulas, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Gestión
CCS: T40
ICS: 43.020
Organismo competente: Ministry of Industry and Information Technology
Comité técnico: National Technical Committee on Automobiles of Standardization Administration of China

Relaciones

Sustituye a:GB 27999-2019