study of fuel economy standard and testing procedure · the testing standard shall compatible with...
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Study of Fuel Economy Standard and Testing Procedure for Motor Vehicles in Thailand
MR.WORAWUTH KOVONGPANICH TESTING MANAGER
THAILAND AUTOMOTIVE INSTITUTE June 20th, 2014
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Overview
Background
Terminology
Scope of the Study
Exhaust Emission Standard
Testing Standard
Gathering Fuel Economy Data
Simple Regression Analysis
Results & Comparison to other Standard
Example of Labeling
Conclusion
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Thailand’s Final Energy Consumption 2004-2013
Source: Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy
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Thailand 20-Year Energy Efficiency Development Plan (2011 - 2030)
Large Commercial
Building Industrial
Small Commercial
& Residential Building
Transportation
Economic Sectors
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Energy Conservation Target
Source: Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy
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Source: Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy
Final Energy Consumption by Economic Sectors 2013
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Final Energy Consumption by Economic Sectors 2013
Source: Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy
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Final Energy Consumption by Fuels 2013
Source: Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy
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239,954 238,773 362,561 377,664
694,234 663,746 334,282 275,892
387,793 365,848
667,532 589,338
41,033 34,206
50,003 52,611
74,569
77,588
2008 2009 2010 2011 2012 2013
Passenger Car 1-Ton Pickup Truck Other
SOURCE: THAILAND AUTOMOTIVE INSTITUTE Car: unit
Thailand Domestic Vehicle Sales (2008-2013)
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Two Strategy Approaches to Promote High Fuel Efficiency’s Motor Vehicles
Law & Regulation Promoting High Energy Efficiency Vehicles
Industrial Standards Act Ministry of Industry
Energy Conservation Promotion Act Ministry of Energy
Mandatory Voluntary
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“To establish an appropriated draft of fuel efficiency standard for motor vehicles to support the energy efficiency labeling and enforcement of Minimum Energy Performance Standards”.
In 2012, The Project Funded by Department of Alternative Energy Development and Efficiency (DEDE), Ministry of Energy with Thailand Automotive Institute (TAI) as an Advisor of the project.
Project of the study of Motor Vehicle’s Fuel Efficiency
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Terminology
Fuel Efficiency
Fuel Economy (FE) Fuel Consumption (FC)
km/L L/100 km
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Objectives
MEPS = Minimum Energy Performance Standard HEPS = High Energy Performance Standard
“Minimum energy efficiency required for any vehicles to be permissible for sale”
“Minimum energy efficiency required for any vehicles to get tax promotion”
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• Hybrid Vehicle • Electric Vehicle • Internal Combustion Engine
Target Vehicle
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Target Vehicles
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Vehicle’s Technology
Driving Condition
Vehicle’s Mass + Loading
17
Factors that influence fuel economy
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Real Road Condition Laboratory Controlled Condition VS
• Volume Method • Flow Method • Scale Method
• Exhaust Gas Analysis Method (Carbon Balance Approach)
Measuring Methods
Why choose Carbon Balance Method?
Accurate Reproducible Inexpensive
Vehicle’s Fuel Economy Measurement Methods
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Scope of the study
The testing standard shall compatible with the current motor vehicles emissions standard enforced by Thailand Industrial Standard Institute (TISI) which equivalent to Euro 4 standard.
Passenger cars and 1 ton pick-up truck that complied with current exhaust emission standard are the target vehicles of the study.
The evaluation of vehicle’s fuel economy will be done separately between gasoline and diesel vehicle, which each of them will be classified by vehicle’s mass to set an appropriate criteria of fuel economy for each level of the vehicle’s mass.
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Date EU Reference Standard Thai Standard
1997 Euro 1 TIS. 1440-2540 Gasoline Vehicle
TIS. 1435-2540 Diesel Vehicle
1999 Euro 2 TIS. 1870-2542 Gasoline Vehicle
TIS. 1870-2542 Diesel Vehicle
2006 Euro 3 TIS. 2160-2546 Gasoline Vehicle
TIS. 2155-2546 Diesel Vehicle
2012 Euro 4 TIS. 2540-2554 Gasoline Vehicle
TIS. 2550-2554 Diesel Vehicle
History of Thailand motor vehicle's emission standard
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Thailand motor vehicle's emission standard & Type of Test
Gasoline Vehicles TIS. 2540-2554
Light Duty Diesel Vehicles TIS 2550-2554
Type I: Verifying the average tailpipe emission after a cold start)
Type I : Verifying the average tailpipe emission after a cold start
Type II : Carbon monoxide emission test at idling speed
Type III : Verifying emissions of crankcase gases
Type IV : Determination of evaporative emission from vehicles with positive ignition engines
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Testing Standards
TIS 2560-2554
Exhaust emissions from motor vehicles: Test method
Equivalent to ECE R.83
TIS 2335-2550
Passenger cars powered by an internal combustion engine or hybrid cars,
M1 and N1 vehicles powered by electric: Emission of carbon dioxide Fuel Consumption, Electric energy consumption and electric range
Equivalent to ECE R.101
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Exhaust Emission Testing System
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Test mass MHP
(kg)
Equivalent inertia I
(kg)
MHP < 480 455
480 < MHP < 540 510
540 < MHP < 595 570
595 < MHP < 650 625
650 < MHP < 710 680
710 < MHP < 765 740
765 < MHP < 850 800
850 < MHP < 965 910
965 < MHP < 1,080 1,020
1,080 < MHP < 1,190 1,130
1,190 < MHP < 1,305 1,250
Test mass MHP
(kg)
Equivalent inertia I
(kg)
MHP < 480 1,360
480 < MHP < 540 1,470
540 < MHP < 595 1,590
595 < MHP < 650 1,700
650 < MHP < 710 1,810
710 < MHP < 765 1,930
765 < MHP < 850 2,040
850 < MHP < 965 2,150
965 < MHP < 1,080 2,270
1,080 < MHP < 1,190 2,270
1,190 < MHP < 1,305 2,270
The equivalent inertia mass of the chassis dynamometer
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New European Driving Cycle (NEDC) Mode Urban Cycle
Extra-Urban Cycle
Cycle 4 1
Average Speed (km/h) 19 62.6
Max Speed (km/h) 50 120
Distance/cycle (km) 1.013 6.955
Distance (km) 4.052 6.955
Total Distance (km) 11.007
Time/cycle (sec) 195
(3 min 15 sec)
400
(6 min 40 sec)
Time (sec) 780
(13 min)
400
(6 min 40 sec)
Total Time 1,180 (19 min 40 sec)
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Carbon Balance Formulation
Gasoline Vehicle FC = (0.1154/D)*((0.866*HC)+(0.429*CO)+(0.273*CO2))
Diesel Vehicle FC = (0.1155/D)*((0.866*HC)+(0.429*CO)+(0.273*CO2))
FC = Fuel Consumption (L/100 km) D = Fuel Density HC = Hydro Carbon (g/km)
CO = Carbon monoxide (g/km) CO2 = Carbon Dioxide (g/km)
“Based on TIS.2335-2550 which is equivalent to UN-ECE Reg.101”
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Fuel economy and GHS emission standards for vehicles around the world
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Fuel economy testing standard
USA Europe China Japan Korea Canada Australia Thailand
US CAFE EU NEDC EU NEDC Japan 10-15 JC08
US CAFE US CAFE EU NEDC EU NEDC
Source: http://lucienkblog.wordpress.com
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Source of DATA
REGRESSION ANALYSIS
PRIMARY SECONDARY
MEPS HEPS
www.dailymail.co.uk
Gathering Fuel Economy Data Population of Car's Model (EURO4 Spec)
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“Car Manufacturer’s Test report apply to TISI for permission”
24 Cars were tested at Thailand Automotive Institute’s
Laboratory
PRIMARY SECONDARY
“All data come from TISI’s certified laboratory or accredited by ISO/IEC 17025”
Source of fuel economy’s data
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Group No. Reference Mass (kg)
1 <480
2 >480-540
3 >540-595
4 >595-650
5 >650-710
6 >710-765
7 >765-850
8 >850-965
Group No. Reference Mass (kg)
9 >965-1,080
10 >1,080-1,190
11 >1,190-1,305
12 >1,305-1,420
13 >1,420-1,530
14 >1,530-1,640
15 >1,640-1,760
16 >1,760-1,870
17 >1,870-1,980
18 >1,980-2,100
19 >2,100-2,210
20 >2,210-2,380
21 >2,380-2,610
22 >2,610
Vehicle is grouped by reference mass according to TIS.2560-2554 standard
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32 32 32
Stratified Sampling & Allocation of sample size
N N 1
N 2
N 3
n 1
n 2
n 3
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33 33 33
Simple Regression Analysis
Verify that reference mass of vehicles is the major parameter of fuel economy (>50%)
Determine that the fuel economy and reference mass have linear correlation and what
is their correlation equation.
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34 34 34
Lower Confidence Limit (LCL) and Upper Confidence Limit (UCL)
0
5
10
15
20
25
400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000
Fuel
Eco
no
my
(km
/L)
Reference Mass (kg)
Fuel Economy VS Reference Mass
Predicted line Fuel Economy Data LCL-95% UCL-95%
“LCL and UCL are used as a tool to set a criteria value for fuel economy standard.”
“LCL is used to determine MEPS while UCL is used to determine HEPS".
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35 35 35
Example: Comparison of LCL & UCL at different level
0
5
10
15
20
25
0 500 1000 1500 2000 2500 3000
Fuel
Eco
no
my
(km
/L)
Reference Mass (kg)
Fuel Economy VS Reference Mass
Predicted line Fuel Economy Data
LCL-90% UCL-90%
0
5
10
15
20
25
0 500 1000 1500 2000 2500 3000
Fuel
Eco
no
my
(km
/L)
Reference Mass (kg)
Fuel Economy VS Reference Mass
Predicted line Fuel Economy Data
LCL-99% UCL-99%
1,023 kg
12.56 km/L 1,023 kg
13.81 km/L
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36 36 36
0.00
5.00
10.00
15.00
20.00
25.00
0 500 1,000 1,500 2,000 2,500 3,000 3,500
Fuel
Eco
no
my
(km
/L)
Mass (kg)
MEPS & HEPS Plot of Gasoline Vehicle
MEPS
HEPS
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37 37 37
0.00
5.00
10.00
15.00
20.00
25.00
0 500 1,000 1,500 2,000 2,500 3,000 3,500
Fuel
Eco
no
my
(km
/L)
Mass (kg)
MEPS & HEPS Plot of Diesel Vehicle
MEPS
HEPS
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38 38 38
0
5
10
15
20
25
0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000
Fuel
Eco
no
my
(km
/L)
Mass (kg)
Comparison with other standards (Gasoline MEPS HEPS)
MEPS
HEPS
China Phase#2
Japan2015
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39 39 39
0.00
5.00
10.00
15.00
20.00
25.00
30.00
0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000
Fuel
Eco
no
my
(km
/L)
Mass (kg)
Comparison with other standards (Diesel MEPS HEPS)
MEPS
HEPS
ChinaPhase#2
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40 40 40 40
EU
USA
China
Japan
Australia
South Korea
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41 41 41
Conclusion
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