UN-R125-产品主图

European

Field of Vision Assistant (FVA)
02 series of UN Regulation125 added new requirements about field of vision assistant (FVA) to provide an assisted view for the driver, which will be in force from September 1, 2023.

Scope:
Category M1 and N1.

Definitions:
Field of vision assistant (FVA) means visual information displayed on the vehicle windscreen or other glazed surface to support the awareness of the driver.
V reference point are points whose position in the passenger compartment is determined as a function of vertical longitudinal planes passing through the centres of the outermost designated seating positions on the front seat and in relation to the "R" point and the design angle of the seat-back, which points are used for verifying compliance with the field of vision requirements.

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Techinical Provisions

Information of a FVA can cover the transparent area of front vision, which include at least 3 windscreen datum points:
a. A horizontal datum point forward of V1 and 17° to the left;
b. An upper vertical datum point forward of V1 and 7° above the horizontal;
c. A lower vertical datum point forward of V2 and 5° below the horizontal.

The information of a FVA can overlaid the windscreen.

  • It shall be possible for the driver to adjust the light intensity of the FVA. 
  • The FVA shall be deactivated automatically in case of an electrically detectable failure of the FVA that affects the visual information as an identified risk considered in the safety approach. 
  • In the case the FVA position is adjustable, the FVA shall be placed in the normal position indicated by the manufacturer or midway between the limits of the range of adjustment

  • The information displayed by the FVA may be non-driving related, as long as the parking gear/brake has not been released for the first time after the activation of the vehicle master control switch.
  • Driving-related information displayed in the auxiliary field of view must meet the following requirements:
When the ignition is on or the vehicle master control switch is activated (whichever is applicable) the FVA information shall be driving related only and limited to:
(a) Warning/Highlight hazardous traffic situation
(b) Warning/Highlight vulnerable road users or other road users which may be overseen
(c) Information to maintain the distances to surrounding road users
(d) Information to find and maintain the correct driveway
In the case the FVA displays information sourced external to the FVA subject to approval (e.g. external GNSS handheld device), this display shall respect the intended content (e.g. type, time, appearance, size, and colour) as described by the manufacturer in the Type Approval documentation. The fulfilment of the provisions of this paragraph shall be demonstrated by the manufacturer to the technical service during the inspection of the safety approach.
  • The symbols and graphics shown by the FVA shall disappear when the underlying condition for their display does not exist anymore. 

Items
Examples
Warning/Highlight hazardous traffic situation
Abrupt braking situations
Oncoming traffic in turning manoeuvres
Oncoming Traffic Jam/vehicle break down.
Vehicles leaving the lane or entering the own driving path
Warning/highlight vulnerable road users or other road users which may be overseen
Pedestrians
Cyclists
Crossing road users
Road users in blind spot or road users covered by other objects
Animals
Information to maintain the distances to surrounding road user and infrastructure
Distance to vehicle in front
Lane keep assist, lane change assist, speed limits changes
Information to find and maintain the correct driveway and to follow the road instructions
Navigation Information, symbols and arrows during automatic lane change
(Directions, Remaining distance to target, border crossings)
Highlighting stop lines and pedestrian crosswalks
Information to support driver’s setting
Highlighting edges of the position of the FVA area during adjustment

Certification Requirements

Information documents provided by manufacturers:
  • The area where the FVA will be displayed, including the default position of it;
  • Information will be displayed by the FVA;
  • The method of activating and deactivating the FVA, and the conditions when the FVA will be automatically deactivated;
  • If the FVA can display approved information from external sources, describe what information can be displayed, type, appearance, size and color of the contents expected to be displayed, and other basic parameters;
  • What strategy will be used by manufacturer in FVA malfuntion and how it ensures that the obstruction of driver's field of vision can be minimized.

The technical service performs certification tests of the former technical provision based on information documents and test checks.

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