Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p105
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 309542–313281

in a frequency so that the adaptive main beam will react to demonstrate the adaptation process.                 X             X
B                                                  Combined oncoming and preceding traffic situations. in a frequency so that the adaptive main beam will react to demonstrate the adaptation process.                 X             X
C                                                  Active and passive overtaking manoeuvres, in a frequency so that the adaptive main beam will react to demonstrate the adaptation process.                           X             X
D                                                  Oncoming bicycle, as described in paragraph 6.22.9.3.1.2.                                                                                                                         X
E                                                  Combined oncoming and preceding traffic situations                                                                                                    X

2.3.                                    Urban areas shall comprise roads with and without illumination.
2.4.                                    Country roads shall comprise sections having two lanes and sections having four or more lanes and shall include junctions, hills and/or slopes, dips and winding roads.
2.5.                                    Multi lane roads (e.g. motorways) and country roads shall comprise sections having straight level parts with a length of more than 600 m. Additionally they shall comprise of sections having curves to the left and to the right.
2.6.                                    Dense traffic situations shall be taken into account
2.7.                                    For the test, sections A and B in the table above the engineers conducting the tests shall evaluate and record the acceptability of the performance of the adaptation process in relation to oncoming and preceding road users. This means that the test engineers shall be seated in the vehicle being tested and additionally be seated in the oncoming and preceding vehicles.
Annex 13

Automatic switching conditions dipped-beam headlamps

Automatic switching conditions dipped-beam headlamps1
Ambient light outside the vehicle2                     Dipped-beam headlamps         Response time

less than 1,000 lux                                    ON                            no more than 2 seconds

between 1,000  lux and 7,000  lux                      at manufacturer's discretion  at manufacturer's discretion

more than 7,000 lux                                    OFF                           more than 5 seconds, but no more than 300 seconds

    1 Compliance with these conditions shall be demonstrated by the applicant, by simulation or other means of verification accepted by the Type Approval Authority.
    2 The illuminance shall be measured on a horizontal surface, with a cosine corrected sensor on the same height as the mounting position of the sensor on the vehicle. This may be demonstrated by the manufacturer by sufficient documentation or by other means accepted by the Type Approval Authority.
Annex 14

Observing area towards the apparent surface of manoeuvring and courtesy lamps

Zones of observation

This drawing shows the zone from one side, the other zones are from the front, the rear and from the other side of the vehicle

Boundaries of the zones

Annex 15

Gonio(photo)meter system used for the photometric measurements as defined in paragraph 2.34. of this Regulation

ENDNOTES

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Endnote 1—About