Document ID: chunk:federal_register_of_legislation:F2024L00446:reg:16:p82
Version: federal_register_of_legislation:F2024L00446
Segment Type: reg
Provision Reference: reg 16 (pt 82/108)
Character Range: 1119664–1122764

the drive wheels from turning.
              2.6.5. Use of the transmission
              2.6.5.1. Manual shift transmissions
              2.6.5.1.1. The gear shift prescriptions specified in Annex B2 shall be followed. Vehicles tested according to Annex B8 shall be driven according to paragraph 1.5. of that annex.
              2.6.5.1.2. The gear change shall be started and completed within ±1.0 second of the prescribed gear shift point.
              2.6.5.1.3. The clutch shall be depressed within ±1.0 second of the prescribed clutch operating point.
              2.6.5.2. Automatic shift transmissions
              2.6.5.2.1. After initial engagement, the selector shall not be operated at any time during the test. Initial engagement shall be done 1 second before beginning the first acceleration.
              2.6.5.2.2. Vehicles with an automatic transmission with a manual mode shall not be tested in manual mode.
              2.6.6. Driver-selectable modes
              2.6.6.1. Vehicles equipped with a predominant mode shall be tested in that mode. At the request of the manufacturer, the vehicle may alternatively be tested with the driver-selectable mode in the worst-case position for CO2 emissions.
              The manufacturer shall provide evidence to the responsible authority of the existence of a mode that fulfils the requirements of paragraph 3.5.9. of this Regulation. With the agreement of the responsible authority, the predominant mode may be used as the only mode for the determination of criteria emissions, CO2 emissions, and fuel consumption.
              2.6.6.2. If the vehicle has no predominant mode because it has two or more configurable start modes, the worst case mode for CO2 emissions and fuel consumption within those configurable start modes shall be tested and may be used as the only mode for the determination of criteria emissions, CO2 emissions and fuel consumption.
              2.6.6.3. If the vehicle has no predominant mode or the requested predominant mode is not agreed by the responsible authority as being a predominant mode, or there are not two or more configurable start modes, the vehicle shall be tested for criteria emissions, CO2 emissions, and fuel consumption in the best case mode and worst case mode. Best and worst case modes shall be identified by the evidence provided on the CO2 emissions and fuel consumption in all modes. CO2 emissions and fuel consumption shall be the arithmetic average of the test results in both modes. Test results for both modes shall be recorded.
              At the request of the manufacturer, the vehicle may alternatively be tested with the driver-selectable mode in the worst case position for CO2 emissions.
              2.6.6.4. On the basis of technical evidence provided by the manufacturer and with the agreement of the responsible authority, the dedicated driver-selectable modes for very special limited purposes shall not be considered (e.g. maintenance mode, crawler mode). All remaining modes used for forward driving shall be considered and the criteria emissions limits