T/CSAE 244-2021 Requirements and test methods for the anti-collision ability of the bottom of the battery electric passenger cars
1 Scope
This document specifies the terms, safety requirements and test methods for the anti-collision ability of the bottom of the battery electric passenger cars.
This document is applicable to battery electric passenger cars with on-board energy storage system placed at the bottom of the car.
2 Normative references
The following documents contain provisions 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 4208-2017 Degrees of protection provided by enclosure (IP code)
GB 11551-2014 The protection of the occupants in the event of a frontal collision for motor vehicle
GB/T 18385-2005 Electric vehicles - Power performance - Test method
GB/T 19596-2017 Terminology of electric vehicles
GB/T 31498-2021 Post crash safety requirement for electric vehicle
GB 38031-2020 Electric vehicles traction battery safety requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 38031-2020 and GB/T 19596-2017 and the following apply.
3.1
three-dimensional reference system
three-dimensional reference system is defined by three orthogonal planes established by the vehicle manufacturer (see Figure 1), in which the vehicle measuring attitude is determined by positioning the vehicle on a supporting surface such that the coordinates of the fiducial marks correspond to the values given by the manufacturer
Figure 1 Three-dimensional reference system
4 Abbreviations
For the purposes of this document, the following abbreviations apply.
BCU: battery control unit
SOC: state of charge
5 Technical requirements
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations
5 Technical requirements
5.1 General
5.2 Insulation resistance
5.3 Leak-tightness requirements
5.4 Particular safety requirements
6 Test conditions
6.1 General conditions
6.2 Accuracy of measuring apparatuses and meters
6.3 Data recording and its interval
6.4 Vehicle state
7 Test methods
7.1 Preparation of vehicles prior to test
7.2 Bottom-scraping test of complete vehicle
7.3 Bottoming test of complete vehicle
7.4 Requirements for vehicles after test
