Document ID: chunk:federal_register_of_legislation:F2023L01529:body:0:p49
Version: federal_register_of_legislation:F2023L01529
Segment Type: other
Provision Reference: 
Character Range: 135798–140053

shall be connected to the test fixture only by the intended mountings provided for the purpose of attaching the REESS or REESS subsystem to the vehicle.

       3. Procedures

       3.1. General test conditions and requirements

       The following condition shall apply to the test:

       (a) The test shall be conducted at an ambient temperature of 20 ± 10 °C,

           (b) At the beginning of the test, the SOC shall be adjusted to a value in the upper 50 per cent of the normal operating SOC range;

           (c) At the beginning of the test, all protection devices which effect the function of the tested-device and which are relevant to the outcome of the test, shall be operational.

       3.2. Test procedure

       The tested-device shall be decelerated or, at the choice of the applicant, accelerated in compliance with the acceleration corridors which are specified in Tables 1 to 3. The Technical Service in consultation with the manufacturer shall decide whether the tests shall be conducted in either the positive or negative direction or both.

       For each of the test pulses specified, a separate tested-device may be used.

       The test pulse shall be within the minimum and maximum value as specified in Tables 1 to 3. A higher shock level and /or longer duration as described in the maximum value in Tables 1 to 3 can be applied to the tested-device if recommended by the manufacturer.

       Figure 1

       Generic description of test pulses

       Table 1 for M1 and N1 vehicles:

       Point                Time (ms)          Acceleration (g)

       Longitudinal         Transverse

       A                    20                 0                        0

       B                    50                 20                       8

       C                    65                 20                       8

       D                    100                0                        0

       E                    0                  10                       4.5

       F                    50                 28                       15

       G                    80                 28                       15

       H                    120                0                        0

       Table 2 for M2 and N2 vehicles:

       Point                Time (ms)          Acceleration (g)

       Longitudinal         Transverse

       A                    20                 0                         0

       B                    50                 10                        5

       C                    65                 10                        5

       D                    100                0                         0

       E                    0                  5                         2.5

       F                    50                 17                        10

       G                    80                 17                        10

       H                    120                0                         0

       Table 3 for M3 and N3 vehicles:

       Point                Time (ms)          Acceleration (g)

       Longitudinal         Transverse

       A                    20                 0                         0

       B                    50                 6,6                       5

       C                    65                 6,6                       5

       D                    100                0                         0

       E                    0                  4                         2.5

       F                    50                 12                        10

       G                    80                 12                        10

       H                    120                0                         0

The test shall end with an observation period of 1 h at the ambient temperature conditions of the test environment.

Annex 8D

Mechanical integrity

       1. Purpose

       The purpose of this test is to verify the safety performance of the REESS under contact loads which may occur during vehicle crash situation.

       2. Installations

       2.1. This test shall be conducted with either the complete REESS or with a related REESS subsystem(s) including the cells and their electrical