BRIEF INTRODUCTION OF ADVANCED DRIVER DISTRACTION WARNING SYSTEM RESEARCH DRAFT

BRIEF INTRODUCTION OF ADVANCED DRIVER DISTRACTION WARNING SYSTEM RESEARCH DRAFT

RELEASE DATE:2023-04-10 15:55
Brief: The EU officially published the new general safety regulationRegulation (EU) 2019/2144 (referred to as the new GSR) at the end of December 2019. To prevent visual distraction-related crashes, Regulation (EU) 2019/2144 mandates the implementation of Advanced Drivers Distraction Warning (ADDW) systems for new types of vehicles from 2024.ADDW system should help drivers focus on driving tasks and warn them when they are distracted. After several rounds of revisions to the draft, the EU finally issued a draft for comment on 24 March 2023.


Last year ATIC outlined technical requirements and validation methods for monitoring driver distraction based on the European Commission's report on theADDW system. And in the latest ADDW draft, the regulation focuses on the visual distractions to be detected. This time, I’ll introduce the ADDW draft through 2 articles.This one describes the technical requirements and another one will explain the method for the vertification test by Technical Service.

The Advanced Driver Distraction Warning (ADDW) system shall determine when the driver’s visual attention is not directed toward the driving tasks and alert the driver through the vehicle’s human machine interface. 

ACTIVATION AND DEACTIVATION OF THE SYSTEM
The ADDW system shall be automatically activated above the speed of 20km/h. Unlike the DDAW system, it shall be possible for the driver to manually deactivate either the ADDW warning or the ADDW system(or both).The system may also be automatically deactivated when the ADS is on with an appropriate driver monitoring system.

THE DEFINITIONS OF DRIVER DISTRACTION
The draft divides the view of the driver into "driving task-relevant areas" and "distracted areas". Whether the driver is distracted or not depends on where and for how long the driver gazes. The definitions of areas are based on the driver's ocular reference point in UN R46.The "distracted areas" we are concerned about are regulated through the following areas:

1.Area 1 is the overlap of the following zones: (a) the roof of the vehicle, and (b) any area in the vehicle which is outside (with respect to the forward-looking direction of the driver considered at 0°of orientation) of the two vertical planes, one, rotated +55°(to the right) and one rotated –55°(to the left) in relation to the longitudinal direction of the vehicle, both planes intersecting in the ocular reference point as defined below. As Figure 1shows.

Fig.1  Area1

1.Area 2 is designated as union of the zones listed below:(a) the area of the windscreen and windows, and (b) 10°around the area of the windscreen and windows as seen from the ocular reference point. As Figure 2 shows.

Fig.2  Area2


1.The Area 3(distraction area)is designated by any area below a plane, 30°downward from the driver’s ocular reference point and by the interaction with Area 1 and Area 2 described hereafter.By default, any area considered in Area 1 are excluded from Area 3. The vehicle manufacturer can choose to include part of the area from Area 1 to the Area 3. All the areas covered in Area 2 are excluded from Area 3.As Figure 3 shows.

Fig.3  Area3

DISTRACTION WARNING TRIGGERS
As long as the ADDW system is activated and able to measure distraction, a warning shall be provided to the driver as soon as the following conditions apply:
Speed
Situation
Distraction Area
Threshold
≥50km/h
nominal
Area 3
last for a maximum time of 3.5s
non-nominal*
last for a maximum time of 5s
≥20km/h
nominal
last for a maximum time of 6s
non-nominal*
last for a maximum time of 7.5s
*Unusual circumstances: wearing sunglasses, having a facial beard, etc.

A visual warning shall be used by the ADDW system to inform the driver and an acoustic and/or a haptic warning shall be used by the ADDW system to alert the driver as soon as possible after occurrence of the trigger behaviour. The warning may cascade and intensify.



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EU CERTIFICATION PLEASE CONTACT
Faye is a researcher in ATIC, graduated from Shenzhen University with a double degree in Electronic Science & Technology and Psychology Double Degree. She focuses on the tracking and research of EU new technology regulations, specializing in smart cockpit compliance solutions
Faye Xue
RND Department
Regulatory researcher, focusing on the tracking and research of EU new technology regulations, specializing in smart cockpit compliance solutions
Phone: +86 020-82510156
Mail: cs@atic-cn.com