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Progress Report of World-wide Light-duty Test Cycle and Mode Construction

Progress Report of World-wide Light-duty Test Cycle and Mode Construction. Prepared by WLTP-DHC/MCTF under GRPE/WLTP informal group. 66 th GRPE 6 th /7 th June. 2013 Palais des Nations, Geneva. Table of contents. Progress since 65 th GRPE meeting Cycle Profile

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Progress Report of World-wide Light-duty Test Cycle and Mode Construction

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  1. Progress Report of World-wide Light-duty Test Cycle and Mode Construction Prepared by WLTP-DHC/MCTF under GRPE/WLTP informal group 66th GRPE 6th/7th June. 2013 Palais des Nations, Geneva

  2. Table of contents Progress since 65th GRPE meeting Cycle Profile Cycle Allocation and Downscale Method Mode construction Gear Shift Prescription Open Issues Lists Technical Report Next actions 2

  3. 1. Progress since 65th GRPE ’12/10 11 12 ’13/1 2 3 4 5 6 17th DHC 16th DHC 15th DHC 18th DHC • Agreed to apply Ver5.1 (Vmax.< 120km/h) • Agreed cycle allocation • Proposed cycle profile modification(ver5.3) for Class 3 by India • Discuss downscaling method • Finalized cycle profile for all classes (refer WLTP-DHC-16-06) • Discuss cycle allocation Cycle Final modification including downscale method Validation 2 Test • Confirmed well work • No major concern • Continue improvement Gear shift Work under MCTF Mode Construction • Fixed (refer WLTP-DHC-17-04) • List up discussion points • Set proposals on several points • Still remain discussion points Technical Report Under the development by JRC, Mr. Steven and JPN Distribute draft version, Complete by Ad-hoc GRPE in Nov. • 1st version 3

  4. 2. Cycle Profile During 16th DHC meeting, it was agreed to modify the cycle profile (Ver5.3 proposed by India) for Class3. DHC has successfully developed the harmonized test cycles. Specific time table of each cycle profile can be seen in WLTP-DHC-16-06 (UN web site) Ex-HIGH for Class2 HIGH MIDDLE LOW for Class3 HIGH MIDDLE for Class1 MIDDLE LOW LOW Ex-HIGH 4

  5. 3-1. Cycle Allocation During 18th DHC meeting (Jun 2013), the following cycle allocation was agreed with adopting the downscale method. 120 km/h L3+ M3 + H3 + ExH3 *1/*2 Class 3 (= Ver 5.1) (Ver5.3) 34 L2 + M2+ H2+ ExH2 *1/*2 Class 2 Power Mass* Ratio** (kW/t) 22 L1 + M1 *2 + L1 Class 1 Vehicle Max Speed (km/h) *) Kurb Mass **) all electrified vehicles belong to Class3 *1) exempted as per CPs need *2) downscaled cycle according to vehicle specification 5

  6. DOWNSCALED 3-2. Downscale Method Please refer WLTP-DHC-18-04 for downscale procedure and WLTP-DHC-18-03 for its technical justification. Developed by Mr. Steven and Validated by mainly India. Downscale ratio Vehicle specification Need to finalize the downscale calculation formula mainly by Mr. Steven, India and other CPs.

  7. 4. Mode Construction During 16th DHC meeting (Mar 2013), the following mode construction was agreed (please refer WLTP-DHC-17-04 for more detail) 7

  8. 5. Gear Shift Prescription (Steven3) Mr. Steven has presented latest status of gear shift prescription (refer WLTP-DHC-16-03). • Validation 2 test indicated that this gear shift logic works well and no major concern was observed. Based on comments provided from participant laboratories, continue to work for improvement, then provide final version before starting confirmation testing. 8

  9. 6.Open Issues -1 Cycle Development (a) 9 9

  10. 6. Open Issues -2 Cycle Development (b) 10 10

  11. 6.Open Issues -3 Mode Construction (a) 11

  12. 6.Open Issues -4 Mode Construction (b) Almost all open issues were successfully closed. 12 12

  13. 7. Technical Report Refer WLTP-DHC-18-06 for latest report. Final report will be completed by next ad-hoc GRPE (Nov. 2013) 13 13 13 13

  14. 8. Next Actions Reflect to gtr Ad-hoc GRPE 16th DHC 65th GRPE 17th DHC 21&22 in Tokyo 18th DHC 66th GRPE Finalize gear shift Develop Technical Report Final refine Close open issues for testing Finalize gtr formal documents Close all open issues Preparations 12 DTP 13th DTP 14th DTP 14

  15. Thank you for all of your tremendous contributions on this difficult tasks !!!

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