Adaptive front-lighting system for motor vehicles
1 Scope
This standard specifies the technical requirements, installation, test methods and inspection rules for adaptive front-lighting systems (hereinafter referred to as "AFS or the system") for motor vehicles.
This standard is applicable to the adaptive front-lighting systems for categories M and N motor vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendments) applies.
GB 4599-2007 Motor vehicle headlamps equipped with filament lamps
GB 4785-2007 Prescription for installation of the external lighting and light-signalling devices for motor vehicles and their trailers
GB 15766.1 Lamps for road vehicles - Dimensional, electrical and luminous requirements
GB 21259-2007 Headlamps equipped with gas-discharge light sources for motor vehicle
GB 25991-2010 Automotive headlamps with LED light sources and/or LED modules
ECE R37 Uniform provisions concerning the approval of filament lamps for use in approved lamp units on power-driven vehicles and of their trailers
ECE R99 Uniform provisions concerning the approval of gas-discharge light sources for use in approved gas-discharge lamp units of power-driven vehicles
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 4599-2007, GB 4785-2007, GB 21259-2007 and GB 25991-2010 and the following apply.
3.1
adaptive front-lighting system; AFS
a lighting device, providing beams with differing characteristics for automatic adaptation to varying conditions of use of the passing beam and the driving beam with a minimum functional content as specified in 5.3.1.1. Such systems consist of the "system control", one or more "supply and operating device(s)", if any, and the "installation units" of the right side and of the left side of the vehicle
3.2
class of a passing beam
designation of a passing beam, identified according to the demands of lighting on different roads
3.2.1
class C of a passing beam
basic passing beam
3.2.2
class V of a passing beam
passing beam for use in lit areas such as towns
3.2.3
class E of a passing beam
passing beam for use on roads such as expressways
3.2.4
class W of a passing beam
passing beam for use in adverse conditions such as wet road
3.3
mode
front-lighting function provided by a system, which means a beam within the range specified in 5.3.2 and 5.3.3, either for one of the passing beam classes or for the driving beam, designed and specified by the manufacturer for adaptation to dedicated vehicle and road conditions
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Types of AFS systems
5 Requirements
6 Installation requirements
7 Test methods
8 Inspection rules
Annex A (Normative) Testing of temperature stability and target luminous flux
Annex B (Normative) Requirements for systems incorporating lenses of plastic material: testing of lens or material specimens and complete systems or part(s) of systems
Annex C (Normative) Aiming requirements for cut-off line
Annex D (Normative) Passing beam photometric requirements for AFS
Annex E (Normative) Installation provisions on AFS system
Annex F (Normative) Test procedure
