1. ASEP IWG Report to GRB 66th

2. Meetings 1rst Meeting : 2016, November – Tianjiin
2d Meeting : 2017, February – Geneva
3rd Meeting : 2017, May – Brussels
4th Meeting : 2017, July – Washington

3. Participants
Contracting parties : France, China, Japan, Germany, EC, Spain
NGOs : OICA, CLEPA

4. Related documents GRB 64th : GRB 65th : GRB 66th :
GRB (Rev.1) - (Chair) (Revised) draft Terms of Reference of IWG ASEP
GRB (France) Information on ASEP
GRB (ISO) Proposals to clarify the provisions of Regulation No. 51, Revision 3, Annex 7
GRB 65th :
ECE/TRANS/WP.29/GRB/2017/2 - (IWG on ASEP) Proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51
GRB (IWG ASEP) - Modifications proposed to ECE/TRANS/WP.29/GRB/2017/2
GRB (IWG ASEP) - Presentation of ECE/TRANS/WP.29/GRB/2017/2
GRB (IWG ASEP) - Progress report
GRB 66th :
ECE/TRANS/WP.29/GRB/2017/5 - (IWG on ASEP) Proposal for Supplement 3 to the 03 series of amendments to Regulation No. 51
And all documents in IWG website

5. Current procedures
Principle to include any improvement (as possible) in current Annex 7 as soon as possible then to come to a general approach
Proposal to include concerns of IWG :
Additional sentence in the scope to reflect the driving situations covered by ASEP
For some case, anchor point in i+1 (to avoid strong variation of vehicle noise in gear i).
Extend SPL measurement to line BB' + 20m to avoid "backfire”
Additional sentence to be sur to include all electric sound enhancement system (such as AVAS, silencers equipped with active cancelled system, …) during the test.

6. General concerns Annex 7 should address Noise environment situation.
Annex 7 should cover typical on-road operation until driving conditions with higher extreme accelerations in an extended speed range representative for urban and suburban traffic.
Annex 7 should allow to check a wide variety of operating conditions (e.g. starts, stops, accelerations, decelerations, steady cruises).
Annex 7 should avoid illegal modification and help to avoid aftermarket.

7. General concerns
Annex 7 should be simplified as possible specially for “normal” vehicle.
Principle of additional point randomly chosen should be defined specially for high powered vehicle and vehicle equipped with Electronically controlled technologies

8. Control range
Control range should be as large as possible to be able, in case of doubt, to check off-cycle in any condition.
Control range should be extend :
< 20 km/h with impact on method – Stationary should not be include,
> 80 km/h (to 100 km/h ?) with impact on facilities
> nBB_ASEP (max 90%)
all gears (bigger gear ratio range)
Partial load with impact on method (and possible on facilties)
Acceleration
Control range could be extend but limited practically by methods and facilities available

9. Test methods Review of concepts :
Concepts and models from previous IWG for ASEP where reviewed
Model base and Not-to-exceed s should be analysed (advantages and disadvantages) - Prniciple of Not-to-Exceed and validation of model(s) should be analyse for “normal” car.
V*a concept : Equivalent to engine speed, need to take into acount tyre noise, difficult to measure acceleration.
« Full » vehicle noise model concept(prop, tyre, …) :
From cruise to full throttle in order to provide limit for each testing condition in an extended control range
General margin : Normal driving behaviour, extreme driving behaviour and non legal driving behaviour.

10. Project plan including milestones
What
When
Who
Test method for :
Partial throttle
Higher speed than 80 km/h
Preferably focus on AT, HV
Burst ?
Indoor/ Outdoor
3 years
IWG ASEP + ISO
To be managed in parallel
Model concept analysis including partial throttle :
Full vehicle noise (prop, tyre, …)
Others ?
Model base or Not-to-exceed for limit ?
2-3 years
IWG ASEP (with TF/sub-group)
Tests to be performed
Database completed:
Mid-2018
IWG ASEP (with TF)
½ day in July to define “homework”
In general application of ASEP, principle of additional point randomly chosen, categories exemption, comparison between current/future methods
To be thought – from 2018

11. Next meetings
Japan, November, 6 to 8th
Geneva, January,