Document ID: chunk:federal_register_of_legislation:F2023L01526:body:0:p31
Version: federal_register_of_legislation:F2023L01526
Segment Type: other
Provision Reference: 
Character Range: 87401–90544

leading to a single cell thermal runaway. REESS or vehicle manufacturers shall make available, at the request of the Technical Service with its necessity, the following documentation explaining safety performance of the system level or sub-system level of the vehicle:
         6.15.2.1. A risk reduction analysis using appropriate industry standard methodology (for example, IEC 61508, MIL-STD 882E, ISO 26262, AIAG DFMEA, fault analysis as in SAE J2929, or similar), which documents the risk to vehicle occupants caused by thermal propagation which is triggered by an internal short circuit leading to a single cell thermal runaway and documents the reduction of risk resulting from implementation of the identified risk mitigation functions or characteristics.
         6.15.2.2. A system diagram of all relevant physical systems and components. Relevant systems and components are those which contribute to protection of vehicle occupants from hazardous effects caused by thermal propagation triggered by a single cell thermal runaway.
         6.15.2.3. A diagram showing the functional operation of the relevant systems and components, identifying all risk mitigation functions or characteristics.
         6.15.2.4. For each identified risk mitigation function or characteristic:
         6.15.2.4.1. A description of its operation strategy;
         6.15.2.4.2. Identification of the physical system or component which implements the function;
         6.15.2.4.3. One or more of the following engineering documents relevant to the manufacturers design which demonstrates the effectiveness of the risk mitigation function:
              (a) Tests performed including procedure used and conditions and resulting data;
              (b) Analysis or validated simulation methodology and resulting data.
7. Modifications and extension of the type approval
         7.1. Every modification of the vehicle or REESS type with regard to this Regulation shall be notified to the Type Approval Authority which approved the vehicle or REESS type. The Authority may then either:
              (a) Decide, in consultation with the manufacturer, that a new type approval is to be granted; or
              (b) Apply the procedure contained in paragraph 7.1.1. (Revision) and, if applicable, the procedure contained in paragraph 7.1.2. (Extension).
         7.1.1. Revision
         When details recorded in the information documents of Annex 1 - Appendix 1 or Annex 1 - Appendix 2 have changed and the Type Approval Authority considers that the modifications made are unlikely to have appreciable adverse effect, and that in any case the vehicle still meets the requirements, the modification shall be designated a "revision".
         In such a case, the Type Approval Authority shall issue the revised pages of the information documents of Annex 1 – Appendix 1 or Annex 1 – Appendix 2 as necessary, marking each revised page to show clearly the nature of the modification and the date of reissue. A consolidated, updated version of the information documents of Annex 1 – Appendix 1 or Annex 1 – Appendix 2, accompanied by a detailed description of