Document ID: chunk:federal_register_of_legislation:F2024L00089:reg:800:p12
Version: federal_register_of_legislation:F2024L00089
Segment Type: reg
Provision Reference: reg 800 (pt 12/16)
Character Range: 61949–64808

at the end of the test, as shown on Figure 1b of the Appendix to this annex. Any trailer, which is not readily separable from the towing vehicle, shall be ignored when considering the crossing of the line BB'.

              A vehicle tested in an indoor facility, shall be located with the rear plane of the vehicle on the PP' line as shown in Figure 2b of the Appendix to this annex. The vehicle shall maintain a constant test speed, vtest for at least 5 seconds.

              For constant speed test condition of 6 km/h, the test speed vtest shall be 6 km/h ± 2 km/h.

              For automatic transmission vehicles, the gear selector shall be placed as specified by the manufacturer for normal reverse driving.

              For manual transmission vehicles, the gear selector shall be placed in the highest reverse gear which can achieve the target vehicle speed with constant engine speed.

              3.3.3.2. Reversing test simulated by an external signal to the AVAS with the vehicle in standstill condition

              A vehicle tested in an indoor or outdoor facility, shall be located with the rear plane of the vehicle on the PP' line as shown in Figure 2b of the Appendix to this annex. The vehicle shall maintain a constant simulated test speed, vtest for at least 5 seconds.

              For constant test condition of 6 km/h, the simulated test speed vtest shall be 6 km/h ± 0,5 km/h.

              3.3.3.3. Reversing test in standstill condition

              A vehicle tested in an indoor or outdoor facility, shall be located with the rear plane of the vehicle on the PP' line as shown in Figure 2b of the Appendix to this annex.

              The vehicle's gear selection control shall be in the reverse position and the brake released for the test.

              3.4. Measurement readings and reported values

              At least four measurements for each test condition shall be made on both sides of the vehicle.

              The first four valid consecutive measurement results for each test condition, within 2,0 dB(A) per side, allowing for the deletion of non-valid results, shall be used for the calculation of the intermediate or final result.

              If a sound peak obviously out of character with the general sound pressure level is observed, that measurement shall be discarded. For measurement of a vehicle in motion (forward and reversing) outdoor, the maximum A-weighted sound pressure level indicated during each passage of the vehicle between AA' and PP' (Ltest,j) shall be noted for each microphone position, to the first significant digit after the decimal place (for example XX,X). For measurement of a vehicle in motion indoor and in standstill (forward and reversing), the maximum A-weighted sound pressure level indicated during each period of 5 seconds for each microphone position,