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WLTP-E-Lab Sub Group Progress report WLTP-DTP-E-LabProc-061

WLTP-E-Lab Sub Group Progress report WLTP-DTP-E-LabProc-061. Leader: Per Ohlund / Kazuki Kobayashi. Proposed actions for gtr development. test sequence. Parameter set. Procedure for V2. Draft gtr1. Modify gtr. Draft gtr2. WLTC completed. reflection. Short V1. Confirmation.

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WLTP-E-Lab Sub Group Progress report WLTP-DTP-E-LabProc-061

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  1. WLTP-E-Lab Sub GroupProgress reportWLTP-DTP-E-LabProc-061 Leader: Per Ohlund / Kazuki Kobayashi

  2. Proposed actions for gtr development test sequence Parameter set Procedure for V2 Draft gtr1 Modify gtr Draft gtr2 WLTC completed reflection Short V1 Confirmation Validation 2 Round Robin [ Background ] 1. Draft gtr 1 is the portion exclude Validation phase 2. 2. Some of open issues need to be evaluated during the validation program. 3. Draft gtr 2 is reflected the result of Validation 2 .

  3. Lab process-EV meeting in Brussels • 26-28th of March at JAMA office in Brussels. • Discussion for the gtr text based on ACEA proposal. • Some open issues should be evaluated during validation phase 2. • The draft gtr ver.1 should be submitted to drafting coordinator. • This result will be referred to Validation test sequence by beginning of May.

  4. Open issues concerning gtr text 2.2.2. Hybrid Electric Powertrain Hybrid electric power train means a power train that, for the purpose of mechanical propulsion, draws energy from both of the following on-vehicle sources of stored energy/power: - Consumable fuel - RESS [1]) 1) Rechargeable energy storage system (RESS) means the rechargeable energy storage system that provides electric energy for electric propulsion (e.g.: battery, capacitor, flywheel / generator ...). <<ECE101 base modified >> RESS renamed REESS(REchargeable Energy Storage System. Refer to R100.

  5. Open issues concerning gtr text • 3.4. Measurement Units and Presentation of results • Accuracy of measurement units and presentation results shall be as follows: The significant figure for the range value (AER, AER city, EAER and so on) should be for calculation 0.1km, for report nearest whole number.

  6. Open issues concerning gtr text 4.2.1. Vehicle Preparation 4.2.1.1. As a general principle for the tests, hybrid electric vehicles shall be tested according to the principles applied to vehicles powered by an internal combustion engine only (Annex Z), unless modified by this annex. 4.2.1.2. The vehicle must have undergone at least [300] km with those batteries that are installed in the test vehicle. [to be discussed later ] 4.2.2. RESS[Battery] Preparation 4.2.2.1. If the batteries are operated above the ambient temperature, the operator shall follow the procedure recommended by the car manufacturer in order to keep the temperature of the battery in the normal operating range. The manufacturer's agent shall be in a position to attest that the thermal management system of the battery is neither disabled nor reduced. 4.2.2.2. The vehicle must have undergone at least [300] km with those batteries that are installed in the test vehicle.

  7. Open issues concerning gtr text 5.1.1.7.1.Charge Depleting test: Option 1: For testing vehicles with operator selectable driving modes, the CD test shall be performed by using the most electric energy consuming hybrid operation mode that best match the target curve. In case that the most electric energy consuming hybrid mode that best match the target curve is the default mode, the test can be performed in the default mode. Option 2: For testing vehicles with operator selectable driving modes, the CD test shall be performed by using the most electric energy consuming hybrid operation mode that best match the target curve. In case that the most electric energy consuming hybrid mode that best match the target curve is the default mode, the test can be performed in the default mode. Option 3: For testing vehicles with the default mode position as operator selectable driving modes, the CD test shall be performed by using the default mode. In case that vehicle has not the default mode, manufacturer may recommend the most representative mode that best match the target curve and most customers will use on the road to the type approval authority, the test can be performed in the approved mode. 2012.03.27 During CD test , EV on /off switch should be deactivated. Manufacure is a free to run the additional test with activating the EV on/off switch .(temporary treatment) [to be validated during Validation phase 2]

  8. Open issues concerning gtr text 5.1.3.3.The charge depleting test procedure shall consist of a number of consequtive WLTC (phase 1-3(4) without soak) each followed by a[10]+/-2 minutes soak period until charge sustaining operation is achieved. [To be validatedVP2]

  9. CD mode CS mode Open issues concerning gtr text 5.1.3.3.2.The break off criteria for the charge depleting test is reached when the Net Energy Change (NEC), over cycle N+1 is less than x Wh. Option 1 5.1.3.3.3.The break off criteria for the charge depleting test is reached when the relative net energy change as shown in the formula below is less than x %. Option 2 Relative net energy change [%] = ____________NEC_____________Cycle energy demand of the test vehicle

  10. Open issues concerning gtr text 5.1.5.1.5.To respect human needs, up to [three interruptions] are permitted between test sequences, of no more than 15 minutes in total. [to be validated VP2, ex. Long range vehicle ] Interruption condition should be evaluated during Validation phase 2 Especially the BEV which has long EV range.

  11. Open issues concerning gtr text 5.1.5.3.1. Driving curve deviations beyond this tolerance band are permitted as follows: (a) at gear changes for a duration less than 5 seconds, (b) and up to five times per hour at other times, for a duration less than ?x? seconds each. [Jp and US has another criteria for end of test, to be considered] [(c) to respect to human needs up to 3 interruptions are permitted between test sequences of no more than 15 minutes in total.] to be deleted, This sentence already written.

  12. Open issues concerning gtr text 5.3.2.5.5.(d) Charging of the battery and Measuring of the electric energy consumption The vehicle shall be connected to the mains within [30 minutes] after the conclusion of the all-electric range AER determination. The vehicle shall be charged according to normal overnight charge procedure (see paragraph ????? to this annex). The energy measurement equipment, placed between the mains socket and the vehicle charger, measures the charge energy E delivered from the mains, as well as its duration. Charging is stopped when the fully charged battery is detected. [to be validated VP2] Charging condition after the range test

  13. OIL No.25bis How to measure? Opt.1) Voltage [V] Opt.2) Current [Ah] Opt.3) CAN To be measured by current regulation CO2/Fuel consumption/(Emission) 0 Charge(-) ∆RCB (Ah) Discharge(+) Open issues concerning gtr text 6.1.1.1.Charge Sustaining Mode Pollutant Emissions The exhaust emissions shall be calculated by a cold start CS test according the requirements for the conventional vehicle as described in annex XY. The charging balance correction calculation is not required for determination of pollutant emissions. [Additional pollutant should be considered to be corrected or not]

  14. Open issues concerning gtr text 6.1.1.2.Weighted Pollutant Emissions Calculate the weighted pollutant emissions from the CD mode and CS mode results using the formula below: [Jp will consider later]

  15. Open issues concerning gtr text 6.1.2.NOVC-HEV with/ without driver selectable operating modes • The exhaust emissions shall be calculated in the same way as required for conventional vehicle as shown in Annex XX. • The charging balance correction calculation is not required for determination of pollutant emissions.[to be considered initial SOC at testing ] • [Additional pollutant should be considered to be corrected or not]

  16. ∆RCB (Ah) Start End Cycle EU) ECE101 Annex8 Open issues concerning gtr text 6.2.1.2.5.Under the conditions below, it is allowed to take the uncorrected measured values C and M as the test results: 1) in case the manufacturer can prove that there is no relation between the energy balance and fuel consumption, 2) in case that ΔEbatt always corresponds to a RESS charging, 3) in case that ΔEbatt always corresponds to a RESS decharging and ΔEbatt is within [1??? per cent] of the energy content of the consumed fuel (consumed fuel meaning the total fuel consumption over 1 cycle).[to be discussed later ] OIL No.27RCB correction criteria ±x%of fuel energy? Start

  17. Open issues concerning gtr text II.1.2.1.Separate fuel consumption correction coefficients shall be determined for the fuel consumption values measured over [each Part of the WLTC respectively]. To be validated VP2 II.1.3. Fuel consumption at zero battery energy balance (C0) II.1.3.1.The fuel consumption C0 at ΔEbatt = 0 is determined by the following equation: [Jp will propose fuel consumption formula with unit (km/l) in parallel] C0 = C – Kfuel · Q (l/100 km) where: C : fuel consumption measured during test (l/100 km) Q : electricity balance measured during test (Ah) II.2.2.1. Separate CO2-emission correction coefficients shall be determined for the fuel consumption values measured over WLTC.[ to be validated VP2]

  18. Proposed actions for gtr development test sequence Parameter set 8th May Phone conf Procedure for V2 Draft gtr1 Modify gtr Draft gtr2 WLTC completed reflection Short V1 Confirmation Validation 2 Round Robin [ Background ] 1. Draft gtr 1 is the portion exclude Validation phase 2. 2. Some of open issues need to be evaluated during the validation program. 3. Draft gtr 2 is reflected the result of Validation 2 .

  19. Appendix;Consideration items on E-Lab. Gr. CO2/FC calculation (PL8/10) Performance of Watt-hour meter, Am-meter (PL3) Multi mode gear box (PL11) Termination condition for EV range (PL6/7) Charging voltage 100 / 200V (PL12) End of charge criteria (PL1) Order of CD/CS (PL4) Interruption condition (PL5) RCB break off criteria (PL2/9) ◆Test flow (independent test for L/M/H/ExH) Charge sustaining (CS) mode test (cold) Charge depleting (CD) mode test Charge sustaining (CS) mode test (hot) (Drain & Fill) Soak 12~36 hr Precondition Plug OFF Discharge Confirm tire pressure within 1hr Prepare RCB measurement Battery condition [Ah} ⊿E ⊿E Drain & Fill Soak 12~36 hr Canister loading AER Soak 6hr EAER RCDR Full charge max. 12 hr Pre-con cycle WLTC×1 WLTC×n WLTC×1 Full charge Day 1 Day 2 (EV: Day 1) Day 3 (EV: Day 2) *) RCB: RESS Charge Balance (=SOC) *) RESS: Rechargeable energy storage system *) AER: All Electric Range *) EAER: Equivalent All Electric Range *) RCDR: Charge Depleting Range *) NEC: Net Energy Change = RCB * nominal voltage of RESS Confirm tire pressure Prepare RCB measurement

  20. fluctuation 1hr CD test CS test Charge complete Plug off CD test start PL1. End of charge criteria • Back ground： • ACEA proposal: Starting within 1 hour from “plug-off” • Japanese proposal: ”from charge completed” • How to： • Monitoring RCB fluctuation after charge complete • CD test：2（max/minimum charging）×4 phase（L/M/H/ExH）×3 times • Impact of battery type ？ (Ni-MH /Lithium，，) • Measurement parameter： • RCB（Voltage/electric current & CAN） • Test equipment ： • RCB measurement system WANTED! Participant! Laboratory ,manufacture

  21. CD mode CS mode PL2/9. RCB break off criteria • Back ground： • RCB Break off Criteria (CD→CS) • How to： • Comparing 2 calculation result by each procedure • CDtest：4phase（L/M/H/ExH）×3times • Measurement parameter： • RCB，Fuel Consumption， total Energy demand at wheels to perform the cycle based on the theoretical profile of the WLTC • Test equipment： • RCB measurement system To be analyzed : a relative NEC: 1) (RCB x Nominal Voltage of the battery) / (RCB x Nominal Voltage of the battery + Energy of the Fuel) 2) (RCB x Nominal Voltage of the battery) / (total Energy demand at wheels to perform the cycle based on the theoretical profile of the WLTC) or an absolute NEC : RCB x Nominal Voltage of the battery WANTED! Participant! Laboratory ,manufacture *) RCB: RESS Charge Balance (=SOC) *) RESS: Rechargeable energy storage system *) NEC: Net Energy Change = RCB * nominal voltage of RESS

  22. PL4. Order of CD/CS test • Back ground： • Confirm impact the order of CD/CS test • Soak -CS test –Charge or CD test –shifting CS mode-Charge For example the temperature impact around Battery • How to： • CD&CS test：4phase（L/M/H/ExH）×3times • Measurement parameter： • RCB（Voltage/Electric current & CAN& temperature Battery or any other electrical parts） • Test equipment： • RCB measurement system

  23. PL6/7. Termination condition for EV range (EV) • Back ground： Japan：the deviation occurs not more than once within 4 second US：more than 2 second Europe：Target more than 50km/h：Below 50km/h， Target Less than 50km/h：more than 5s 6times during 1 hour • How to： • Running until completely stop and calculate EV range by each procedure • Compare each result • EV range test：4Phase（L/M/H/ExH） • Measurement parameter： • RCB（Voltage/electric current & CAN）,Distance • Test equipment： • RCB measurement system

  24. PL6/7. Termination condition for EV range (OVC HEV) • Back Ground： • To compare PHEV and Range Extender • How to： • Confirmation test procedure for range extender • Compare with PHEV • CD& CS test：4phase（L/M/H/ExH）×3times • Measurement parameter： • RCB（Voltage/Electric current & CAN） • Test equipment： • RCB measurement system WANTED! Participant! Laboratory ,manufacture Especially Range extender manufacture

  25. PL12. Charging voltage 100 / 200V • Back ground： • Charging voltage has impact for charging efficiency. • There are several Voltage in all of the world. • US:110-120V,Japan:100/200V.EU:220-240V(127V) • How to ： • Measure Charging time，Fluctuation during Plug ON，impact for CS/CD test result,Electric Range. • PHEV:CD test：each Voltage×4phase（L/M/H/ExH）×3times • EV: Electric range :Each Voltage × 4phase（L/M/H/ExH） ×3times • Measurement parameter： • RCB（Voltage & CAN） • Test equipment ： • RCB measurement system Japan conducted pre-validation 2 How do we treat the difference of Voltage of each region?

  26. Appendix：Open issues • Green color means “agreed or deleted” • Red color means “to be discussed “. • Blue color means” to be confirmed in Validation phase 2”. • Under line means “changed from last DTP in Geneva”. • These under lined issues will be reported today.

  27. Open issues Color means state of each issue on Open issue list 11 open Issues are To be discussed 2 (UF, Battery charging time) =>To be discussed during V2 Depends on new cycle 1 ( AE city for Low speed EV) => To be discussed during V2 Depends on Validation results 5 (ex,EV range, CD /CS test,)=>TBD after V2 Follow ICE group 3 (R/L, multi gear box,) The Issues to be validated are listed on parameter setting list. The procedure for validation phase 2 are shown next.

  28. Unknown SOC Cold start of ICE Performance of Watt-hour meter, Am-meter OIL No.15,16,17 Charging Condition Battery [Ah] Validation test

  29. OIL No.25bis How to measure? Opt.1) Voltage [V] Opt.2) Current [Ah] Opt.3) CAN To be measured by current regulation ∆RCB (Ah) Start End CO2/Fuel consumption/(Emission) Cycle EU) ECE101 Annex8 OIL No.27RCB correction criteria ±x%of fuel energy? Start 0 Charge(-) ∆RCB (Ah) Discharge(+) RCB Correction for CO2 &FC

  30. OIL.10bis 1hr End of charge criteria Charge complete Plug off Test start (OIL10) Validation test

  31. 1h max from Alternative Fully Charged plug off (in case of charge and CD test has start of CD to be retested) : Charge Depleting Range RCDA ICE Spak precondition time+ battery charge All Electric Range ing at chronologica Equivalent All Electric Range Charging Condition [Ah] l separation from step 1 and 2 First start of ICE Test n Test n+1 Test 1 Test 2 Driving cycle [/] (transcient) (needed for calculations) CO RCDA calculated with k factor 2 Recharge Recharging 12h max 12h max CO avg CD CO Transcient CO hot CS 2 2 2 36h soak max OIL.No31 Low power vehicle What is Low power vehicle? How to validate? To be raised DTP level

  32. Detailed calculation formula is developed based on validation test results. Pollutants : CO2/Fuel Consumption : Range :

  33. 1.0 JPN (EU) US OIL No.1: WLTP UF SAE 1711 with Opt.1) based on reagional data Opt.2) based on worldwide data 0.5 US: SAE J1711 with US data JPN: SAE J1711 with JPN dataEU: CS weight is 25km (fixed) Utility Factor 25 OVCrange (km) To be discussed later stage

  34. Annex: Open issue list 1

  35. Open issue list2

  36. Open issue list3

  37. Open issue list4

  38. Open issue list5

  39. Open issue list5

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