WMTC
World-wide Motorcycle Emissions Test Cycle
Proposal to develop a WMTC GTR
UN-ECE-WP.29, Geneva, 13. November 2003
1
WMTC
World-wide Motorcycle Emissions Test Cycle
• TRANS/WP.29/2003/103
• Technical issues of WMTC
• Outlook on
performance requirements
UN-ECE-WP.29, Geneva, 13. November 2003
2
WMTC – GTR proposal

TRANS/WP.29/2003/103

Proposal to develop a GTR - 1998 agreement

Regarding worldwide harmonised motorcycle
emissions test procedure

Informal group WMTC

Technical sponsor: Germany
3
WMTC – Main items

Test cycle

Gearshift procedure

Test protocol
(sampling, measurement, analysis – procedures;
cooporation with ISO)
4
WMTC – Targets

Improved test cycle Reflects real world onroad motorcycle
operation and enables testing of existing and
future engine-/ aftertreatment-technologies

Harmonised test procedure Enables worldwide operating manufacturers to
delevop motorcycles economically efficient
regarding emission requirements
5
WMTC – Regulations/Standards
Overview of existing regulations / standards

EU directive 97/24/EC
Japanese Reg. TRIAS
UN-ECE-R 40
USA – FTP

ISO Standards



6
WMTC – Informal group

Start 1999 (VROM, TNO, IMMA)
(since 2000 joined by RWTÜV)

WMTC informal group Members:
Goverments
EC
Germany
Japan
Netherlands
Spain
Switzerland
UK
USA
NGO‘s
IMMA
AECC
7
WMTC –
Test cycle
1. Classification
20
5
18
22
2. Data
3. Statistics
V
x-thousands of
20x
6
5x
hours
18x
22x
6x
4. Reference Cycle
X2
Data
collection
analysis/calculation
reference cycle
representative cycle
test cycle
V
30 min
5. Representative Test Cycle
8
WMTC – Test cycle part 1
130
120
Part 1
Part 2
Part 3
110
100
90
80
70
60
50
40
30
20
10
0
0
300
600
900
1200
1500
1800
9
WMTC – Test cycle part 1,2
130
120
Part 1
Part 2
Part 3
110
100
90
80
70
60
50
40
30
20
10
0
0
300
600
900
1200
1500
1800
10
WMTC – Test cycle part 1,2,3
130
120
Part 2
Part 1
Part 3
110
100
90
80
70
60
50
40
30
20
10
0
0
300
600
900
1200
1500
1800
11
WMTC – Gearshift procedure
8000
rated speed
7000
engine speed in min-1
6000
5000
engine speed range for
cruising phases (4. gear)
4000
1. Gear
2. Gear
3000
3. Gear
4. Gear
2000
5. Gear
6. Gear
vehicle 37, Europe, 47 kW/t
n_upshift_EU_J_US
1000
n_downshift_EU_J_US
0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
vehicle speed in km/h
12
WMTC – Validation

Drivebility tests
(Modifications of test cycle)

Validation (53 data sheets):




Comparison WMTC to existing cycles
Different laboratories
Different motorcycles (e.g. 2/4-stroke, catalyst)
Round robin test

3 motorcycles – each tested at
different laboratories
13
WMTC – Further steps



Next informal group meeting 11/03
Results presented to GRPE 1/04:
 Final draft Technical report
(including round robin test results, final
details on weighting and classification)
 Amended draft GTR-text without
performance requirements
Discussion paper to GRPE on options for
performance requirements in a WMTC GTR
14
WMTC – Performance requirements

Issues to be discussed concerning
performance requirements in a WMTC GTR
(1) Limit values
(2) Additional requirements
(3) Cost/Benefit Analysis
(4) Enforcement Process
 Type approval
 Self certification
15
WMTC – Performance requirements

(1) Limit values (CO, HC, NOx)
 option
1: Worldwide most restrictive level
(effect: a motorcycle can be accepted all over
the world)
 option 2: Table with different levels
(A, B, C, …) of limit values
(effect: contracting party can choose a level)
 option 3: ??
16
WMTC – Performance requirements

(2) Additional requirements
 Evaporative
emissions, CO2 , COP,
CO idle test, Durability,
Off cycle emissions, …
 What
should be included in the draft GTR
(first step)
17
WMTC – Performance requirements

(3) Cost benefit analysis
 Qualitative
 Who
or quantitative ?
can deliver data or information ?
18
WMTC – Performance requirements

(4) Enforcement process
Self certification / Type approval
 option
1: Issue not included in WMTC GTR
 option
2: Annexes in WMTC – GTR
-- Annex „x“: Type approval
-- Annex „y“: Self certification
 option
3: ??
19
WMTC
World-wide Motorcycle Emissions Test Cycle
Proposal to develop a WMTC GTR
UN-ECE-WP.29, Geneva, 13. November 2003
20