1. Clarification on Scope of draft UN Regulation on Software Updates

2. (including ECU-heating)
Examples 1 and 2 a/b/c on update possibilities in general vs. updates on Type Approved Systems
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mirrors
defrosting
Defrosting
(including ECU-heating)
(2a)
(1)
brakes
(2b)
Air conditioning
(incl. ECU-heating &
ECU-cooling)
(2c)
seat
heating
lighting
All SU (incl. e.g. SU on electronically controlled fragrance vaporizer)
(1)
(2a-c)
steering
seat
positioning
▲▲▲
▯▯▯

3. Explanation on: (1) updating functions with their impact on type approval relevant parameters
The function „lane change“ will be either newly implemented or updated on a vehicle during it´s lifetime.
Two kinds of impacts can be evaluated with regard to UN R Softwareupdates:
Impact checked on the following
TA relevant systems:
Brakes
Steering
Lighting
Example of SU content:
An automatic lane change assist will change the behavior of the TA relevant systems
brakes and
steering
to conduct a lane change without taking action by the driver.
 TA relevant parameters will be changed by the update.
Example of SU content:
The TA relevant system
lighting
will not be affected by the new or updated function „lane change“.
The side direction indicator works in the same way and
manner before as well as after the update.
 TA relevant parameters won´t be changed by the update.
documentation of type approval relevance
New RxSWIN
documentation of type approval irrelevance
NO new RxSWIN

4. SU within ecu heating for system „defrosting“
Explanation on: (2) updating of ECUs with/without impact on (related) type approved systems
Softwareupdate within system defrosting – Air Condition as non TAS, but it´s ECUs with possible TA relevance
either or
SU within ecu cooling
for system „Air conditioning“
SU within ecu heating for system „defrosting“
(a)
(b)
(c)
Example of SU content:
Lowering of the maximum heating power of the windshield heating.
 The ecu heating is part of the
non TA relevant system air condition
The ecu heating is also part of the TA relevant system defrosting
 The SU does have an impact on the
system defrosting and it´s type approval relevant parameters.
Example of SU content:
One additional heating level for the
passenger compartment rear seat area.
 The ecu heating is part of the
non TA relevant system air condition
The ecu heating is also part of the
TA relevant system defrosting
 The SU does NOT have an impact on the
system defrosting and it´s type approval
relevant parameters.
Example of SU content:
Change of fan levels for cooling of the
passenger compartment rear seat area.
 The ecu cooling is part of the
non TA relevant system air conditioning
 The ecu cooling is NOT part of the
TA relevant system defrosting
 The ecu cooling and it´s software are NOT part of any TA relevant system. They
do NEITHER have any impact on the
system defrosting, NOR on any TA relevant parameters.
documentation of type approval relevance
New RxSWIN
documentation of type approval irrelevance
NO new RxSWIN
NO documentation of type approval irrelevance