Document ID: chunk:federal_register_of_legislation:F2023L01526:body:0:p75
Version: federal_register_of_legislation:F2023L01526
Segment Type: other
Provision Reference: 
Character Range: 207843–210908

least 6 hours.

       6. Test procedures for test conducted using a complete vehicle.

       6.1. The vehicle shall be continuously charged and discharged in a manner that will increases the temperature of REESS cells as rapidly as possible within the range of normal operation as defined by the manufacturer until the end of the test.

       The charge and discharge will be conducted by vehicle driving operations on chassis dynamometer where the driving operation shall be determined through consultation with the manufacturer to achieve the conditions above.

       For a vehicle that can be charged by an external power supply, the charging may be conducted using an external power supply if more rapid temperature increase is expected.

       6.2. The test will end when one of the followings is observed:

           (a) The vehicle terminates the charge and/or discharge;

           (b) The temperature of the REESS is stabilized such that the temperature varies by a gradient of less than 4 °C through 2 hours;

           (c) Any failure of the acceptance criteria prescribed in paragraph 6.9.2.1. of the Regulation;

           (d) Three hours elapse from the time of starting the charge/discharge cycles in paragraph 6.1.

Annex 9J

Over-current protection

       1. Purpose

       The purpose of this test is to verify the performance of the overcurrent protection during DC external charging to prevent the REESS from any severe events caused by excessive levels of charge current as specified by the manufacturer.

       2. Test conditions:

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

           (b) The SOC of REESS shall be adjusted around the middle of normal operating range by normal operation recommended by the manufacturer such as driving the vehicle or using an external charger. The accurate adjustment is not required as long as the normal operation of the REESS is enabled;

           (c) The overcurrent level (assuming failure of external DC electricity supply equipment) and maximum voltage (within normal range) that can be applied shall be determined, if necessary, through consultation with the manufacturer.

       3. The overcurrent test shall be conducted in accordance with paragraph 4. or paragraph 5., as applicable and in accordance with manufacturer information.

       4. Overcurrent during charging by external electricity supply.

       This test procedure is applicable to vehicle-based test for vehicles that have the capability of charging by DC external electricity supply:

           (a) The DC charging vehicle inlet shall be used for connecting the external DC electricity supply equipment. The charge control communication of the external electricity supply equipment is altered or disabled to allow the overcurrent level determined through consultation with the manufacturer;

           (b) Charging of the REESS by the external DC electricity supply equipment shall be initiated to achieve the highest normal charge current specified by the manufacturer.