Positions on open points WLTP DTP subgroup LabProcICE WLTP-DTP-LabProcICE-262 Positions on open points WLTP DTP subgroup LabProcICE Incl. initial proposals from LabProcICE leading team, 07.10.2013 Based on input by the following stakeholders: Drafting Coordinator Japan (LabProcICE-250) EU-COM (LabProcICE-254rev1, -rev2 will be included soon) General remarks: This presentation includes the comments which were decided by LabProcICE leading team to be confirmed or discussed at the f2f meeting. All other issues/comments which are purely editorial or already approved by LabProcICE leading team will be reviewed and transposed by the Drafting Coordinator. The input from other stakeholders has been transposed to the LabProcICE master amendment draft (LabProcICE-263) Remark on EC comments: The comments by Iddo Riemersma (IR) were taken from the document LabProcICE-rev1. Please note: Unfortunately the numbering of the comments is not consistent with Revision 2. 15/11/2018
II. Text of Global Technical Regulation 15/11/2018
[ ] __________________________________________ 3. Definitions LabProcICE: agreed [ ] LabProcICE: remove square brackets, IR19: DC issue 15/11/2018
4. Abbreviations 4.1 General abbr. / 4.2. Chemical symbols & abbr. LabProcICE: To be confirmed by experts PCF: PM/PN 15/11/2018
5. General requirements LabProcICE: To be confirmed by experts Review Phase 1b 15/11/2018
5.6. CO2 vehicle family EV / DTP 15/11/2018
Question Technical Secretary: No tolerance for engine displacement? LabProcICE: IR 28: To be discussed in phase 1b TS question: Same engine means no range for displacement et.al. 15/11/2018
[ ] 6. Performance requirements LabProcICE: Remove square brackets. Editorial: fuels are „described“ 15/11/2018
ANNEX 1 – Worldwide Light Duty Test Cycles All downscaling issues to be reviewed by DHC 15/11/2018
ANNEX 4 – Road load and dyno setting 15/11/2018
3.1. Required overall measurement accuracy 3. Measurement criteria 3.1. Required overall measurement accuracy (b) time accuracy: min. +/-1ms; time resolution: min. +/-0.01 s; JAPAN proposal: time accuracy of min. +/-10ms is enough for RLD LabProcICE: seems valid, to be confirmed by RLD experts 15/11/2018
[3.2. Wind tunnel criteria The wind tunnel used for the determination of the product of aerodynamic drag coefficient Cd and frontal area Af within the road load vehicle family shall meet the criteria in this section. 3.2.1. … 3. 2.12. ] JAPAN & TS comments: No sufficient technical discussion has taken place Allow to use current equipment at this stage (Japan provides specifications) Review of specifications in Phase 1b LabProcICE: discussion needed 15/11/2018
3.2.8. Air pressure 3.2. Wind tunnel criteria LabProcICE: confirmation by experts needed 15/11/2018
[ ] [ ] 4.1.1.1.1. Wind conditions using stationary anemometry 4.1. Requirements for road test 4.1.1. Atmospheric conditions for road test 4.1.1.1. Wind conditions 4.1.1.1.1. Wind conditions using stationary anemometry [ ] [ ] 15/11/2018
[ ] [ ] [ ] 4.1.1.1.2. Wind conditions using on-board anemometry Remarks: Values were provided by RDW (NL) directly to DC on August 14th. US manufacturers proposed an average of 10 m/sec with gusts to 14 m/s. JAMA/JASIC accept 4.1.1.1.1. and 4.1.1.1.2. as in UN ECE GTR 2013/13. LabProcICE: Discussion needed LabProcICE-261 by AUDI 15/11/2018
… 4.2.1. Test vehicle 4.2. Preparation Technical Secretary proposal: Replace „leads to highest/lowest road load“ by „ … cycle energy demand“ in whole paragraph LabProcICE: Agreed 15/11/2018
4.2.1.3.1. Vehicle test mass … [ 4.2. Preparation 4.2.1. Test vehicle JAPAN comment: DTP decision, see OIT: 15% is for Category-1 vehicles, 28% is for Category-2 vehicles. [ LabProcICE: Agreed, bring gtr in line with DTP decision 15/11/2018
Needs to be reviewed. Phase 1b? LabProcICE: Needs to be reviewed. Phase 1b? 15/11/2018
… 4.3.1.4.5.1 LabProcICE: agreed (see DTP decision OIT) 4.3. Measurement and calculation of total resistance by coastdown method 4.3.1.3 Vehicle coast down procedure 4.3.1.4.5. The total resistance curves … 4.3.1.4.5.1 … IR 72: This is the same calculation procedure as in 4.3.1.4.5, only in a different order. There is no need to have two calculation methods for the same outcome in a GTR. Apart from that, there is also a risk involved. If one or the other method is amended without harmonising the other, a loophole might occur. During discussions in WLTP it was agreed to leave out this double calculation method. LabProcICE: agreed (see DTP decision OIT) 15/11/2018
[ ] 4.3.2. On-board anemometer-based coastdown method Technical Secretary: Delete square brackets LabProcICE: agreed, remove brackets. Complete chapter should be reviewed Phase 1B 4.3.2.2. Selection of speed range for road load determination LabProcICE: to be discussed, clear definition of reference speed and speed range required 15/11/2018
4.3.2.4. Vehicle coastdown procedure LabProcICE: To be checked by RLD experts (+ editorial suggestions) 15/11/2018
To be provided by RLD experts. Clarification in Phase 1B LabProcICE: To be provided by RLD experts. Clarification in Phase 1B 15/11/2018
LabProcICE: to be confirmed by RLD experts. Clarification in Phase 1B. 15/11/2018
4.4.2.2. Start of data collection 4.4. Measurement of running resistance using the torque meter method 4.4.2. Procedure and data sampling 4.4.2.2. Start of data collection LabProcICE: To be checked by RLD experts Clarification in Phase 1B 15/11/2018
4.4.3.1. Calculation process . . . LabProcICE: 4.4.3. Calculation of mean velocity and mean torque 4.4.3.1. Calculation process . . . LabProcICE: To be clarified at f2f meeting 15/11/2018
4.5.5. Road load curve correction LabProcICE: To be clarified with RLD experts No clarification Phase 1B 15/11/2018
4.5.5. Road load curve correction LabProcICE: To be clarified with RLD experts No clarification Phase 1B 15/11/2018
5. Method for the calculation of default road load based on 5. Method for the calculation of default road load based on vehicle parameters 5.1. Proposal: Reference speeds shall be selected according to § 4.3.1.1 and the default road load (Fc), in N, for these reference speeds vj, in km/h, shall be calculated LabProcICE: Agreed 15/11/2018
5. 2. The default road load force shall be calculated using the 5.2 The default road load force shall be calculated using the following equation: LabProcICE: IR105: to be discussed with RLD experts Approach was agreed at DTP-14 and continuously reviewed based on input by stakeholders. Industry objects to current parameters. Based of future data the parameters can be reviewed and adapted (Phase 1b) DC comment: Has the paragraph been reviewed by all interested parties? 15/11/2018
[ 6. [Reserved: Road load measurement using a combination of a wind tunnel and chassis dynamometer] ] LabProcICE: Requirements to be developed in WLTP Phase 1B IR107: clarified later 15/11/2018
7. Transferring road load to a chassis dynamometer 7.1. Preparation for chassis dynamometer test 7.1.1. Laboratory condition 7.1.1.1. Roller The chassis dynamometer roller(s) shall be clean, dry and free from foreign material which might cause tyre slippage. For chassis dynamometers with multiple rollers, the dynamometer shall be run in the same coupled or uncoupled state as the subsequent Type 1 test. Chassis dynamometer speed shall be measured from the roller coupled to the power-absorption unit. Technical Secretary proposal: This section shall not be applied to vehicles of Annex 8 LabProcICE: DHC/EV issue, but clarification welcomed 15/11/2018
7.3.4. Vehicle warm-up JAPAN: No support of “alternative procedure” at this stage since no family criteria nor setting criteria are defined. -> Delete paragraph. LabProcICE: Exclude now. Reserve paragraph for amending in Phase1B Phase1B 15/11/2018
8. Chassis dynamometer load setting 8.1. Chassis dynamometer setting by coastdown method 8.1.3. Verification DC question: Has this section been reviewed? Especially 8.1.3.2.1. Fixed run method and 8.1.3.2.1 Iterative method LabProcICE: Feedback from experts? Review in phase1B? 15/11/2018
8.2. Chassis dynamometer load setting using torque meter method 8.2.3. Verification 8.2.3.2. . . . [ LabProcICE: Remove brackets - review in Phase 1B needed (see next slide) ] See next slide 15/11/2018
LabProcICE: See also ANNEX 5 (2. Chassis dynamometer) 15/11/2018 and 10 N criterion in 2.4.3. Verification of road load simulation without a vehicle LabProcICE: Torque meter criterion not consistent with 10N. Alignment in phase1B DC requests check of 10 N consistency too.
App. 1 - Calculation of road load for the dynamometer test 1.1. The measured road load shall be calculated using the following equation: LabProcICE: Proposal: 3 % for a two axle driven vehicle, 1.5 % for a one axle driven vehicle 15/11/2018
LabProcICE: Needs to be scrutinized by RLD experts (torque meter method) Phase 1B 15/11/2018
ANNEX 5 – Test equipment and calibrations 15/11/2018
LabProcICE: Separate expert feedback requested. Clarification of frequency (yearly?) Phase 1B 15/11/2018
3.3.2. Dilution air conditioning [ ] DC comment: Square brackets to be clarified! UTAC: Delete 99.97% LabProcICE: - IR152: agreed, alignment necessary. Discussion with meas. experts required - agreed: delete 99.97% 15/11/2018
LabProcICE: Separate expert feedback needed. 15/11/2018
LabProcICE: Separate expert feedback needed. 15/11/2018
LabProcICE: Separate expert feedback needed. 15/11/2018
LabProcICE: Separate expert feedback needed. 15/11/2018
LabProcICE proposal: “Deviations between calculated mass and measured quantity shall not exceed 2 %. Otherwise...” 15/11/2018
LabProcICE: OK LabProcICE: OK LabProcICE: OK (t90) 15/11/2018
LabProcICE: Keep “can” LabProcICE: Amendment in Phase 1b 15/11/2018
To be reviewed in Phase 1b LabProcICE: To be reviewed in Phase 1b 15/11/2018
Expert feedback needed LabProcICE: Expert feedback needed LabProcICE: OK LabProcICE: Expert feedback needed 15/11/2018
ANNEX 6 – Type 1 test procedure and test conditions 15/11/2018
1.2. Type 1 test conditions 1.2.3. Test vehicle 1.2.3.3. Run-in 1.2.1. Overview LabProcICE: Proposal needed phase 1b 1.2.3. Test vehicle 1.2.3.3. Run-in LabProcICE: DTP agreed on „3000 - 15000 km“ DC: Amend gtr draft 15/11/2018
1.2.4.2. Dynamometer operation mode 1.2. Type 1 test conditions 1.2.4. Settings 1.2.4.2. Dynamometer operation mode DC LabProcICE: Gtr inline with intensively discussed and agreed wording. Leave it like it is. 15/11/2018
Possible improvements Phase1B 1.2.4. Settings LabProcICE: Possible improvements Phase1B 15/11/2018
1.2.6.2. Battery charging 1.2.6. Test vehicle preconditioning JAPAN: Add: „ … except that the manufacturer requests no charging before preconditioning.“ LabProcICE: Agreed. Inline with DTP decision (see OIT): “at the request of the manufacturer charging can be omitted before precon” To be reported in the test report. 15/11/2018
1.2.6.3.7 1.2.6. Test vehicle preconditioning LabProcICE: Agreed. In line with DTP decision: "At request of the manufacturer or [technical service/authority] additional wltc cycles can be performed in order to bring the vehicle and its control systems in a stabilised condition." 15/11/2018
[ ] [ ] 1.2.6.6. Speed trace tolerances 1.2.6. Test vehicle preconditioning 1.2.6.6. Speed trace tolerances [ ] [ ] Japan / Technical Secretary: Within 1.0 sec on any violation and less than 3 times for Class1 and 5 time for Class2/3 LabProcICE: TS to provide a draft text 15/11/2018
Predominant mode Proposals by NL (LabProcICE-258) 1.2.6. Test vehicle preconditioning 1.2.6.5. Use of the transmission Predominant mode Proposals by NL (LabProcICE-258) Additional comments to paragraphs 1.2.6.5.2 to 1.2.6.5.4.2 by Iddo Riemersma (on behalf EC): see LabProcICE-254rev2, comments „IR 301“ to „IR 306“ and general remark „IR 280“ LabProcICE: To be discussed during f2f meeting Note: Editoral by Japan (#12 in LabProcICE-251) agreed 15/11/2018
1.2.6.8. Decelerations 1.2.6.8.1 Phase 1B 1.2.6. Test vehicle preconditioning 1.2.6.8. Decelerations 1.2.6.8.1 LabProcICE: Provision for “sailing” is missing ACEA proposal with justification is required. Phase 1B 15/11/2018
1.2.7. Soaking LabProcICE: IR312: agreed. IR313: to be clarified. (supplemental test, phase 1b) 15/11/2018
1.2.14.2. Bag analysis 1.2.14.2.1 LabProcICE: Japan proposal: “… in any event not later than 30 minutes for exhaust gases analysis after the end of the cycle phase.” Justif.: 30minutes is tough limitation, because in case of future NO continuous measurement requirement. Japan recommend 30 minutes limit effect only for exhaust gases, and <dilution air contained in the bags> exclude from time limit. LabProcICE: Discussion with meas. experts required Presentation by AUDI: LabProcICE-257rev1 15/11/2018
ANNEX 5 LabProcICE: correct LabProcICE: change to 30 min Additional comments with regard to bag analysis / analyzing time: LabProcICE: correct ANNEX 5 LabProcICE: change to 30 min 15/11/2018
1.2.14.2 Bag analysis LabProcICE: correct, 5.3.1.1. will be changed 15/11/2018
Review by PMPN? ANNEX 6 – Appendix 1 Emissions test procedure for all vehicles equipped with periodically regenerating systems Review by PMPN? 15/11/2018
ELECTRIC POWER SUPPLY SYSTEM ANNEX 6 – Appendix 2 TEST PROCEDURE FOR ELECTRIC POWER SUPPLY SYSTEM MONITORING 15/11/2018
[ ] Japan: LabProcICE: Remove square brackets of Appendix LabProcICE: Apply all rechargeable batteries including electrified vehicles Apply standard method (Annex 8 / Appendix II) only to the batteries having propulsion functions Apply Willans method only to the batteries not having propulsion function if no agreement Phase 1B Apply no adjustment threshold (whole WLTC : 0.5%) for both methods (2: to reduce testing burden, 3: due to measurement accuracy ) LabProcICE: To be discussed 15/11/2018
Proposal by Japan: LabProcICE: . . . not having propulsion function. LabProcICE: Expert discussion needed. For example: is it always possible to clearly distinguish between propulsion and non-propulsion batteries? If no common agreement: follow Japanese proposal for Phase 1A. 15/11/2018
Other comments by EC: 2. Measurement equipment and instrumentation 2.1. Current transducer LabProcICE: Confirmation by experts requested.
Feedback from experts requested. 2.2. Vehicle on-board data 15/11/2018 LabProcICE: Feedback from experts requested.
[ ] 2.2. Vehicle on-board data LabProcICE: 15/11/2018 LabProcICE: Feedback from experts requested. Delete square brackets. [ ]
3. Measurement procedure 3.1. External battery charging LabProcICE: Add : „ … , except that the manufacturer requests no charging before preconditioning.“ or leave complete sentence out? LabProcICE: To be clarified by experts
Expert feedback requested. 3.6. The test results shall be the uncorrected measured values of CO2,cs and FCcsin case any of the following applies: LabProcICE: Expert feedback requested.
Expert feedback requested. 4. Correction Method LabProcICE: Expert feedback requested.
To be confirmed by experts. LabProcICE: To be confirmed by experts. LabProcICE: Feedback from experts requested