Technical Guide

Hella GmbH &
Co. KGaA
59552 Lippstadt
Subject:
RS 5.4 – Advanced driver assistance system – Technical
Guide
Date: 2019-09-06
No.:
Page 2 of 8
Signed by: Checked by:
Hella 3399DE (2000-05)
This document is confidential. Its contents are not to be exploited, passed on or disclosed to third parties without our express permission. All rights are reserved.
Copyright Protection: Confidential - ISO 16016
1 Functions
The sensor is capable to detect moving object. With this recognition capability it covers the following
functionality:
1.1 LCW
LCW (Lane Change Warning) is the feature used for recognition of target vehicles in the blind
spot zone or in further distance in order to inform the driver of the ego vehicle about the safety
level of a lane change. In case that a target vehicle approaches the ego vehicle in that way, that
the lane change is no longer safe, a warning lamp is activated. If the driver of the ego vehicle
decides to change the lane in such a dangerous situation, a warning can be given by setting the
warning LED to blink.
Other HELLA terms are BSD = Blind Spot Detection and LCA = Lane Change Assistant
1.2 CTA
The City Turn Assist is the function supporting the truck driver during turning maneuvers and to
keep an overview of blind spot zone of the truck.
In HELLA terminology there is a risk of mixing the abbreviation “CTA” with the Cross Traffic Alert-
function, which is referring to rear cross traffic warnings. Therfore the City Turn Assist is often
abbreviated as “TA”.
1.3 FTA
The Front Traffic Alert (also known as Front Cross Traffic Alert (FCTA)) supports the driver on
traffic in front of the vehicle, which is especially helpful on the driver diverted side.