T/CECA-G 0231-2023 Energy efficiency technical requirements and test methods for air conditioning systems of pure electric vehicles

Scope

Main technical content: This document specifies the energy efficiency limits, energy efficiency grades, and test methods for pure electric vehicle air conditioning systems. The evaluation index is the energy efficiency grade of the whole vehicle air conditioning system, which includes the energy efficiency grade in high-temperature refrigeration scenarios and the equivalent energy efficiency grade in low-temperature heating scenarios. In the high-temperature refrigeration scenario, the air conditioning system is classified into three energy efficiency grades (1, 2, 3) according to the measured refrigeration energy efficiency ratio per unit volume. In the low-temperature heating scenario, the air conditioning system is classified into three energy efficiency grades (1, 2, 3) according to the measured heating energy efficiency ratio per unit volume. The energy efficiency grade of the air conditioning system should simultaneously meet the corresponding energy efficiency index values in the high-temperature and low-temperature scenarios. If it cannot simultaneously meet the corresponding energy efficiency index values, the lower energy efficiency grade in the high-temperature refrigeration or low-temperature heating scenario shall be taken as the energy efficiency grade of the whole vehicle air conditioning system. At the same time, the standard sets technical requirements for test instruments, the location of sensor placement, the requirements for chassis dynamometers, the volume of the passenger compartment, and the test methods for high-temperature refrigeration and low-temperature heating scenarios.

Development Information

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