This part of GB/T 31467 specifies safety requirements and test methods of lithium-ion traction battery pack and system for electric vehicles.
This part is applicable to lithium-ion traction battery packs and systems installed on electric vehicles, and nickel-hydrogen traction battery packs and systems may also refer to this part.
2 Normative References
The following documents for the application of this document are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB 4208 Degrees of Protection Provided by Enclosure (IP Code)
GB/T 18384.1 Electric Vehicles - Safety Specification - Part 1: On-board Energy Storage
GB/T 18384.3 Electrically Propelled Road Vehicles - Safety Specifications - Part 3: Protection of Persons against Electric Hazards
GB/T 19596 Terminology of Electric Vehicles
GB/T 28046.1-2011 Road Vehicles - Environmental Conditions and Testing for Electrical and Electronic Equipment - Part 1: General
GB/T 31467.1-2015 Lithium-ion Traction Battery Pack and System for Electric Vehicles - Part 1: Test Specification for High Power Applications
GB/T 31467.2-2015 Lithium-ion Traction Battery Pack and System for Electric Vehicles - Part 2: Test Specification for High Energy Applications
3 Terminologies and Definitions
For the purposes of this document, the terminologies and definitions defined in GB/T 19596 and the following ones apply.
3.1
Battery electronics
Electronic device that collects or simultaneously monitors electric and thermal data of battery cells or modules and may contain electronics for cell balancing, if necessary.
Note: The battery electronics may include a cell controller. The balancing between battery cells may be controlled by the battery electronics or it may be controlled by the battery control unit (BCU).
3.2
Battery control unit; BCU
Electronic device that controls, manages, detects, or calculates electric and thermal parameters of the battery system and also provides communication between the battery system and other vehicle controllers.
3.3
Rated capacity
Discharge capacity of battery pack or system measured under specified conditions.
3.4
Battery pack
Unit that generally includes storage battery, battery management module (excluding BCU), battery container and corresponding accessories and is capable of obtaining external electric energy and outputting electric energy outwards.
3.5
Battery system
