DHC Progress Report WLTP-DTP April 2011 EMPA, Duebendorf, Switzerland WLTP-DHC Secretary N. Ichikawa. 12 April th DTP Meeting

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1 WLTP-DTP-5-5 April 5 th DTP Meeting DHC Progress Report April EMPA, Duebendorf, Switzerland WLTP-DHC Secretary N. Ichikawa WLTP-DHC Secretary

2 Contents WLTP-DTP-5-5 April 5 th DTP Meeting. Current Status. Data Analysis Exercise 3. Open Issues. Next Actions WLTP-DHC Secretary

3 . Current Status () In-use Data Collection WLTP-DTP-5-5 April 5 th DTP Meeting China EU India In-use Data On going (partial data by middle of April, then expect to complete by May. ) Completed (on going for more data acquisition) Partial Data is available (additional data by middle of April, then expect to complete by April) Traffic Statistical Information Expect to submit by middle of April Completed Expect to submit by middle of April Japan Completed Completed Korea Completed Completed ( need traffic volume data ) USA Completed Completed () Methodology It was agreed by DHC group (refer to WLTP-DHC-6-3e.rev) WLTP-DHC Secretary 3

4 . Data Analysis Exercise () Analysis process WLTP-DTP-5-5 April 5 th DTP Meeting Initial Analysis by each region Determine the threshold speed for L/M/H Study on the possible threshold speed for L/M/H Convert to L/M/H category Check Chi-square value & other parameter Gear shift analysis Develop the harmonized cycle Check representative of each region WLTP-DHC Secretary

5 . Data Analysis Exercise WLTP-DTP-5-5 April 5 th DTP Meeting () Data used for analysis exercise (Unit: km) EU Region Japan (JP) Korea (KR) India (IN) China (CN) U.S. (US) Belgium (BE) Germany (DE) Vehicle type No. of vehicles Urban Rural Motorway Undefine (*) PC 3,65,3,76 5,67 LDCV 3 3,33,35,77 7,85 PC 6 8,8 6,93,6 6,33 LDCV,558 3,6,55 8,37 PC 6 3,7,67 5,, LDCV 3,76,6 3,55 7,77 PC LDCV PC 56 xx,xxx LDCV xx,xxx Chase car - 7,538,365 9,635 9,538 PC,986,667,9 5,95 LDCV,35,35 PC 8 7,865,5,98 3, LDCV Data without road category information was omitted for analysis exercise. WLTP-DHC Secretary 5 Total 5,955 3,3 8,78 9,538 7,89 PC ,9,69 Spain (ES) 9,666 LDCV,85,93 7,7 France (FR) Italy (IT) PC 3,568 53,5 3,88 8,96 LDCV PC 8 9,87 3,96 3,85 57,66 LDCV PC 9 9,38,796 3,68 Poland (PL),68 LDCV Slovenia (SL) Switzerland (CH) United Kingdom (UK) Sweden (SE) PC 8,66,35 9,9 8,93 LDCV PC 6 6, 3,763,886,67 LDCV PC 7,7 9, ,9 LDCV,9,9 PC 5 8,5 8,5 LDCV 8,8 8,8 3, 8,96 57,66 8,93 3,69 3,78 36,95

6 . Data Analysis Exercise WLTP-DTP-5-5 April 5 th DTP Meeting (3) Initial analysis by each region (Urban/Rural/Motorway base) Urban Rural Motorway Urban Rural Motorway. 5 Average ST duration.5.5 JP EU US KR IN CN. Urban Rural Motorway V-A Distribution RPA (m/s ) Average IDLE duration (s) 5 JP EU US KR IN CN Average ST duration (s) 6. JP EU US KR IN CN JP EU US KR IN CN Average Vehicle Speed Average RPA Average speed (km/h).5 Average IDLE duration U/R/M Urban Rural Motorway Average: 6 km/h Average: 9 km/h Average: 7 km/h Vehicle speed Average: 9 sec Average: 397 sec Average: 67 sec ST duration WLTP-DHC Secretary Short trip duration (s) Harmonized Urban Japan Urban EU Urban US Urban Korea Urban India Urban China Urban Harmonized Urban Short trip duration (s) Harmonized Rural Japan Rural EU Rural US Rural Korea Rural India Rural China Rural Harmonized Rural Short trip duration (s) Harmonized Motorway Japan Motorway EU Motorway US Motorway Korea Motorway India Motorway China Motorway Harmonized Motorway IDLE duration Average: sec Average: sec Average: 6 sec Idling duration (s) Harmonized Urban Japan Urban EU Urban US Urban Korea Urban India Urban China Urban Harmonized Urban Idling duration (s) Harmonized Rural Japan Rural EU Rural US Rural Korea Rural India Rural China Rural Harmonized Rural Idling duration (s) Harmonized Motorway Japan Motorway EU Motorway US Motorway Korea Motorway India Motorway China Motorway Harmonized Motorway Vehicle speed (km/h) Harmonized Urban Japan Urban Cum. EU Urban Cum. US Urban Cum. Korea Urban Cum. India Urban Cum. China Urban Cum. Harmonized Urban Cum Vehicle speed (km/h) Harmonized Rural Japan Rural Cum. EU Rural Cum. US Rural Cum. Korea Rural Cum. India Rural Cum. China Rural Cum. Harmonized Rural Cum Harmonized Motorway 8 Japan Motorway Cum. 7 EU Motorway Cum. 6 US Motorway Cum. Korea Motorway Cum. 5 India Motorway Cum. China Motorway Cum. 3 Harmonized Motorway Cum Vehicle speed (km/h) Urban Rural Motorway Cumulative profile of parameters It was observed that driving profile under U/R/M road category is differ from each region.

7 . Data Analysis Exercise WLTP-DTP-5-5 () Study on the possible threshold speed for L/M/H April 5 th DTP Meeting Possible Threshold Chi-square value other parameter Determine the threshold speed for L/M/H WLTP-DHC Secretary 7

8 . Data Analysis Exercise WLTP-DTP-5-5 (5) Develop the harmonized cycle - April 5 th DTP Meeting Mode construction L+M+H = 8 s L =xxx s M = yyy s H =zzz s L : M : H = based on traffic volume If high phase duration is not enough long for stable sampling, divide into L+M and H mode construction. L+M = s L =XXX s M = YYY s + H = 6 s WLTP-DHC Secretary 8

9 . Data Analysis Exercise WLTP-DTP-5-5 (5) Develop the harmonized cycle - April 5 th DTP Meeting V-A Distribution confirmation on other parameter It was observed that Low/Middle phase are well represent the all region, however, high phase need additional treatment due to different characteristics. WLTP-DHC Secretary 9

10 . Data Analysis Exercise WLTP-DTP-5-5 April 5 th DTP Meeting (6) Summary Proposed methodology (refer to WLTP-DHC-6-3e.rev) works well to develop the harmonized cycle. Data conversion to L/M/H category is MUST to have similarity of each region. Difference in high phase is still observed among US/EU and other regions. supplemental treatment is required. Proposals for OIL, 3 and will be presented during next DHC meeting (on 6 ACEA office in Brussels). Initial harmonized cycle can be developed no later than the middle of July once OIL, 3 and were fixed during next WLTP-IG (in Geneva). Regional weighting factors for L/M/H phase might be necessary to represent each region driving behavior. WLTP-DHC Secretary

11 3. Open Issues - WLTP-DTP-5-5 April 5 th DTP Meeting 3 5 Issues Discussion points Proposed Actions Deadline for submission of driving data Regional Weighting when developing the WLTC Threshold Speed for L/M/H High Phase Cycle Construction (US&EU versus other regions) Mode Construction a) India and China requested deadline be extended to May a) traffic volume CPs to submit as much data by end of Jan as possible. Propose to AC3 that only data submitted by deadline be used??. Compress possible work elements to accommodate delay. b) same weighting Wait for initial analysis, then make a decision during 7 th DHC meeting a) according to DHC-6-3 b) CP s requirement a) only ONE unified cycle b) possess TWO types of High phase cycle a) cold start test only b) cold start & hot soak start Wait for initial analysis, then further discussion is necessary before developing the st WLTC After developing the st WLTC, further analysis is necessary during the validation WLTP-DHC Secretary

12 3. Open Issues - WLTP-DTP-5-5 April 5 th DTP Meeting Issues Discussion points Proposed Actions Unique Weighting Factor for L/M/H Phase Gear Shift Points How to treat the vehicles which are not able to follow the prescribed cycle Check the driving profile based on the vehicle characteristic a) harmonized weighting factors b) permit regional weighting factors a) fixed points b) based on vehicle specification c) others a) continue to drive with wide-open-throttle b) exempt the H (or M&H) phase(s) c) others After developing the st WLTC, check the representativeness for each region. JARI, JRC and Mr. Steven work together to finalize the method before developing the st WLTC. Develop the proposal during validation tests. Analyze the in-use data based on vehicle characteristic (i.e. power to mass ratio) WLTP-DHC Secretary

13 . Next Actions WLTP-DTP-5-5 April 5 th DTP Meeting. In-use Data Collection April May June July Sept. Oct. India Final 6 7 th China/India Intermediate 7 8 th xx 9 th xx th Data Analysis 3. Cycle Development Initial analysis China Final Proposal for OIL,3, FIX for OIL,3, Modify, if necessary Including gear shift point (OIL 7) Feedback. Validation Test Plan Preparation OIL 5,6,8 5. Validation Test Plan Preparation WLTP-DHC Secretary 3