Status report on the DTI TF Takahiro HANIU (JASIC/JARI) 18-21, Sep. 2018. 24th WLTP-IWG Status report on the DTI TF <DRAFT> DTI TF leader Takahiro HANIU (JASIC/JARI)

Current status on the DTI TF The DTIs for the EVs were discussed and most of items were agreed within the DTI TF and SG-EV. PEV shortened test: Agreed that the constant speed segments are excluded from the DTI calculation. The evaluation of the DTI in the PEV shortened test procedure should be done only on: - dynamic segment 1 “L-M-H(-xH)-L-M” and in addition on - dynamic segment 2 “L-M-H(-xH)-L-M” PEV consecutive cycle test and OCV-HEV CD tests: EC and JRC's proposal was agreed. - When number of CD cycles is <4, calculate DTIs cycle by cycle and all need to comply with set criteria - When number of CD cycle is ≥4, the average of RMSSE and IWR for each 2 CD cycles need to be within the set limits and for IWR there should be no single CD cycle with value below -3% and above +5% Usage of OBD port during type approval test: Agreed that "to use OBD port during the type approval test for the detection of WOT" is allowed. The proposed text amendment The revised text is now provided for the Amendment 5. The DTI for city cycle test is currently discussing in the DTI TF and SG-EV.

(Ref) PEV shortened test Calculation portion for shortened test Shortened test procedure For the shortened test, the drive trace index should be calculated during the two dynamic segments(DS1 and DS2) respectively. It is not necessary to calculate DTIs during the constant speed segments (CSSM and CSSE) 2 Drive trace index for DS1 Segment # IWR RMSSE DS 1 x.xxx DS 2

Calculate DTIs respectively (Ref) OVC-HEV CD test Calculation portion When number of CD cycles is <4, calculate DTIs cycle by cycle and all need to comply with set criteria When number of CD cycle is ≥4, the average of RMSSE and IWR for each 2 CD cycles need to be within the set limits and for IWR there should be no single CD cycle with value below -3% and above +5% Calculate DTIs respectively Calculate each cycle Calculate each cycle less than 4 cycle more than or equal to 4 cycle Cycle# 1 2 3 IWR x.xxx RMSSE Cycle# 1 2 3 4 IWR x.xxx* RMSSE x.xxx * should be -3<IWR<+5 Cycle# 1-2 1-3 1-4 2-3 2-4 3-4 IWR x.xxx RMSSE

(Ref) DTIs for PEV city test cycle When the shortened test procedure is applied Seg.# DS-1 DS-2 IWR x.xxx RMSSE only DTI application on dynamic segment necessary City-1 City-2 City-3 City-4 Cycle# City-1 City-2 City-3 City-4 IWR x.xxx* RMSSE x.xxx * should be -3<IWR<+5 No separate evaluation as segment 1 and 2 already evaluated Cycle# 1-2 1-3 1-4 2-3 2-4 3-4 IWR x.xxx RMSSE When the consecutive cycle test procedure by applicable WLTP test cycle is applied Cycle# WLTC-1 WLTC-2 WLTC-3 IWR x.xxx RMSSE City-1 City-2 City-3 only DTI application on complete cycle necessary Cycle# City-1 City-2 City-3 IWR x.xxx RMSSE No separate evaluation as each complete cycle already evaluated WLTC-1 WLTC-2 WLTC-3 When the consecutive cycle test procedure by city test cyle is applied City-1 City-2 City-3 Cycle# City-1 City-2 City-3 IWR x.xxx RMSSE OK

(Ref) DTIs for OVC-HEV city test cycle-1 <based on 4.4.1.2.1.> When the city test cycle is applied and the # of cycles of CD test is less than 4. City-1 City-2 City-3 Cycle# City-1 City-2 City-3 IWR x.xxx RMSSE OK When the city test cycle is applied and the # of cycles of CD test is more than or equal to 4. Cycle# City-1 City-2 City-3 ・・・ City-n IWR x.xxx* RMSSE x.xxx City-1 City-2 City-n * should be -3<IWR<+5 ・・・ Cycle# 1-2 1-3 1-4 2-3 2-4 3-4 ・・・ IWR x.xxx RMSSE

(Ref) DTIs for OVC-HEV city test cycle-2 When the applicable WLTP test cycle is applied and the # of cycles of CD test is less than 4. Cycle# WLTC-1 WLTC-2 WLTC-3 IWR x.xxx RMSSE City-1 City-2 City-3 Cycle# City-1 City-2 City-3 IWR x.xxx RMSSE No separate evaluation as each cycle already evaluated WLTC-1 WLTC-2 WLTC-3 If applicable WLTP test cycle is applied and the # of cycles of CD test is more than or equal to 4. Cycle# WLTC-1 WLTC-2 WLTC-3 ・・・ WLTC-n IWR x.xxx* RMSSE x.xxx * should be -3<IWR<+5 only DTI application on complete cycle necessary Cycle# 1-2 1-3 1-4 2-3 2-4 3-4 ・・・ IWR x.xxx RMSSE City-1 City-2 City-n ・・・ Cycle# City-1 City-2 City-3 ・・・ City-n IWR x.xxx* RMSSE x.xxx WLTC-1 WLTC-2 WLTC-n * should be -3<IWR<+5 No separate evaluation as each cycle already evaluated Cycle# 1-2 1-3 1-4 2-3 2-4 3-4 ・・・ IWR x.xxx RMSSE

The questions on the DTI to the EVs were raised (Ref) Schedule The DTIs for the EVs were discussed in the DTI TF and SG-EV 2018 2019 Jan Feb Mar Apr May Jun Jul Aug Sep ・・・ WLTP IWG SG-EV DTI TF TODAY 9 WLTP #21 17-20 WLTP #22 4-5 WLTP #23 18-21 WLTP #24 WLTP #25 10 F2F 13 Web 9 Web 6 Web 31 Web 6 Web The questions on the DTI to the EVs were raised 24 Web 4 Web