SLIDE 1
Task Aims
- Task 4
– To understand the effect of vehicle inertia on CO2 emissions.
- Task 8
Department for Transport Light goods vehicle CO 2 emissions study - - PowerPoint PPT Presentation
Department for Transport Light goods vehicle CO 2 emissions study - - PowerPoint PPT Presentation
Department for Transport Light goods vehicle CO 2 emissions study Framework ref: PPRO 4/45/4 (Lot 2) Tasks 4 & 8 Wednesday 11 th February 2009 Presented at LCVP Passenger Car Working Group By Phil Stones Principal Engineer
SLIDE 2
SLIDE 3
Contents
- Description of test vehicles
- Description of test inertias
- Description of vehicle drive cycles
- Test Matrix as completed
- Findings
– Effect of inertia – Effect of Drive cycles – Effect of Road Load Coefficients
- Questions / Comments
SLIDE 4
Test Vehicles
6,573 3500 2180 109 MERCEDES CVS SPRINTER MERCEDES Class 3 8,676 2600 1580 85 FORD TRANSIT FORD Class 2 9,036 1730 1130 74 PSA Partner New shape Peugeot Class 1 Count of Registrations Gross Vehicle Weight Unladen Weight (MV) Power BHP Engine Make Range Marque Type Approval Category
SLIDE 5
Selected Inertias
2270 3500 2270 2600 1700 1730 GVW 2270 2816 2040 2090 1470 1430 50% Payload 2270 2232 1700 1680 1250 1230 Ref Mass Equivalent Cookbook Actual Equivalent Cookbook Actual Equivalent Cookbook Actual Mercedes Sprinter Ford Transit Peugeot Partner
- Ref mass = OEM Declared kerb weight + 100kg
- Propose to test each vehicle at actual inertia rather than cookbook
- CVs over 1700kg will use 1.3 factor on their dyno coefficients
- 50% payload will be adjusted according to Task 3 findings
- Use coefficients from reference mass for both other inertias (50% payload and GVW)
SLIDE 6
Drive Cycles
Comparison of NEDC, FIGE, Artemis 130 and UDDC Drive Cycles
20 40 60 80 100 120 140 500 1000 1500 2000 2500 3000 3500 Time (Seconds) Vehicle Speed (kph)
NEDC FIGE Artemis 130 UDDC
SLIDE 7
Test Matrix
Class Class 1 Class 2 Class3 Make Peugeot Ford Mercedes Model Partner Transit Sprinter Tests at Cookbook Load Cold NEDC Ref Mass Y Y Y Hot NEDC Ref mass Y Y Y Hot NEDC 50% GVW Y Y Y Hot NEDC GVW Y Y Y Hot UDDC Y Y Y Hot FIGE Y Y Y Hot Artemis Motorway Y Y Y Coastdown Ref Mass Y Coastdown GVW Y Tests at Coastdown Load Hot NEDC Ref mass Y Hot UDDC Ref Mass Y Hot Artemis Motorway Ref Mass Y Hot NEDC GVW Y Hot UDDC GVW Y Hot Artemis Motorway GVW Y Vehicle Tests
SLIDE 8
Effect of inertia on CO2 over NEDC Phases – Peugeot Partner
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for a Peugeot Partner
100 110 120 130 140 150 160 170 180 190 200 ECE EUDC Overall CO2 (g/km) 1470kg inertia 1650kg inertia 1960kg inertia
SLIDE 9
Effect of inertia on CO2 over NEDC Phases – Ford Transit
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for a Ford Transit
150 160 170 180 190 200 210 220 230 240 ECE EUDC Overall CO2 (g/km) 1810kg inertia 2150kg inertia 2438kg inertia
SLIDE 10
Effect of inertia on CO2 over NEDC Phases – Mercedes Sprinter
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for a Mercedes Sprinter
150 170 190 210 230 250 270 290 310 330 ECE EUDC Overall CO2 (g/km) 2270kg inertia 2840kg inertia 3500kg inertia
SLIDE 11
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for each vehicle
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for each vehicle
100 150 200 250 300 350 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 CO2 (g/km) ECE - Peugeot Partner EUDC - Peugeot Partner NEDC - Peugeot Partner ECE - Ford Transit EUDC - Ford Transit NEDC - Ford Transit ECE - Mercedes Sprinter EUDC - Mercedes Sprinter NEDC - Mercedes Sprinter
SLIDE 12
Comparison of Carbon Dioxide over the NEDC cycle at different test inertias for each vehicle
ECE EUDC NEDC Peugeot Partner 2.31 1.55 1.83 Ford Transit 3.01 1.72 2.19 Mercedes Sprinter 2.00 1.45 1.65 Increase in grammes CO2 per 100kg payload increase
SLIDE 13
Comparison of effect of test cycle on CO2
Comparison of Carbon Dioxide over different cycles for a each test vehicle
50 100 150 200 250 300 350 400 ECE EUDC Cold NEDC Hot NEDC Artemis 130 UDDC FIGE CO2 (g/km) Peugeot Partner 1470kg Ford Transit 1810kg Mercedes Sprinter 2270kg
SLIDE 14
Effect of Cookbook Vs Coastdown - Transit
Comparison of Carbon Dioxide with different road load models over different cycles for a Ford Transit
50 100 150 200 250 300 350 400 Hot NEDC - ECE Hot NEDC - EUDC Hot NEDC - Overall Artemis 130 UDDC - Urban UDDC - Door to Door UDDC - Overall CO2 (g/km) 1810kg with Cookbook Coefficients 1810kg with Coastdown Coefficients 2438kg with Cookbook Coefficients 2438kg with Coastdown Coefficients
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