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Status report and Discussion paper for Number of tests at WLTP Tokyo IWG in 2015 JAPAN WLTP-12-15e.

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Presentation on theme: "Status report and Discussion paper for Number of tests at WLTP Tokyo IWG in 2015 JAPAN WLTP-12-15e."— Presentation transcript:

1 Status report and Discussion paper for Number of tests at WLTP Tokyo IWG in 2015 JAPAN WLTP-12-15e

2 Status report In the Geneva IWG and GRPE, we are advised to harmonize dCO2 value rather than CP option. However it was difficult to agree one harmonized dCO2 among CPs. TF proposal today is that dCO2 value should be determined by CP. Regarding GTR drafting, the first version of draft text was circulated on 20th of July not only to the Number of tests TF, but also to Subgroup-EV as we advised at Geneva IWG. – On 25th of August, we had Number of tests TF web meeting. EV issues were discussed in Subgroup-EV web meeting as well. – A lots of good comments/suggestions were made by participants and reflected to GTR text. No controversial discussion are remaining ( I hope..), the draft GTR should be ready to adoption with final check by stakeholders.

3 Draft GTR for Number of tests

4 Derive cycle value – declares value Manufacture declares total cycle value according to Table A6/1. (per 1.1.2.3.2. ) RCB correction and Ki factor shall be applied before comparison. (per 1.1.2.2. )

5 Derive cycle value – declared value [Only for reference]Annex 8 descriptions.

6 Derive cycle value – flowchart First Test Any of criteria pollutant > Limit yes All criteria in table A6/2 within the “first test” row are fulfilled. no yes Second Test Any of criteria pollutant > Limit yes no yes Third Test Any of criteria pollutant > Limit yes Rejected no Declared value or Average of three accepted, depending on judgment result of each value,. according to paragpaph1.1.2.3.6. All declared values and emissions Accepted no All criteria in table A6/2 within the “second test” row are fulfilled. Figure A6/1 Flowchart for the Number of Type 1 Tests Only total cycle value shall used in flowchart. (per 1.1.2.1. ) Criteria pollutant limit has to be satisfied at all tests. (per 1.1.2.3.1. ) Criteria for Number of tests is in table A6/2.

7 Derive cycle value – flowchart Electric consumption(EC) for OVC-HEV are NOT used in flowchart “Figure A6/1”. The declared EC is taken as the type approval value if declared CO2 value is accepted (per 1.1.2.3.3. ) Special provision only for OVC-HEV CD testing. 1. 0.9 criteria instead of 1.0 for criteria pollutant. (see table) 2. 1.0 criteria instead of dCO2 for CO2 emission. (per 1.1.2.3.8.) If all criteria on the Table A6/2 are fulfilled, all values declared by the manufacturer are accepted. If any of the criteria on the Table A6/2 is not fulfilled, then need another test (up to three tests).

8 Derive cycle value – flowchart First Test Any of criteria pollutant > Limit yes All criteria in table A6/2 within the “first test” row are fulfilled. no yes Second Test Any of criteria pollutant > Limit yes no yes Third Test Any of criteria pollutant > Limit yes Rejected no Declared value or Average of three accepted, depending on judgment result of each value,. according to paragpaph1.1.2.3.6. All declared values and emissions Accepted no All criteria in table A6/2 within the “second test” row are fulfilled. Figure A6/1 Flowchart for the Number of Type 1 Tests Always take an average of available test results for criteria pollutants. (per 1.1.2.3.9. ) Manufacture can re-declare to the worse side to reduce test, if they want. (per 1.1.2.3.7. ) 1.1.2.3.6.After third test, the average results of the three tests is calculated. If all criteria on the “second test” row of Table A6/2 are fulfilled by these average results, all values declared by the manufacturer are accepted as the type approval value. If any of the criteria on the “second test” row of Table A6/2 is not fulfilled, the declared value is taken as the type approval value if the corresponding criterion on the “second test” row of Table A6/2 is fulfilled by average result, and the average results are taken as the type approval value if the corresponding criterion on the “second test” row of Table A6/2 is not fulfilled by average result. After third test, judgment is depending on each parameters, according to 1.1.2.3.6.

9 Derive cycle value – flowchart dCO2 is CP option, dCO2_1: -1.0% to +2.0% (0.990 to 1.02) dCO2_2: -0.5% to +2.0% (0.995 to 1.02) except that, OVC-HEV CD testing(dCO2 = 0.0%(1.00)).

10 Determination of phase value – CO2,FC Phase specific values for CO2 and FC are adjusted by CO2_AF to match the declared cycle CO2 value. (per 1.1.2.4.1. and 1.1.2.4.2. ) Take arithmetic average of all test results in case of the declared cycle value is not accepted. (per 1.1.2.4.1.2. and 1.1.2.4.2.2.)

11 Determination of phase value – EC, AER, EAER 1.1.2.4.3. Phase specific value for electric energy consumption, all electric range and equivalent all electric range. 1.1.2.4.3.1. The phase specific electric energy consumption, all electric range and equivalent all electric range are calculated by taking, the arithmetic average of the phase specific values of the test result(s), without an adjustment factor. 1.1.2.4.3.1. Take arithmetic average of valid tests for PEV EC, AER and EAER, without adjustment factor.

12 END

13 Each phaseL+M (regional option)L+M+H(+Ex-H) EMCO2FCECRangeEMCO2FCECRangeEMCO2FCECRange ICENA ○ ○ Annex 7 3.2.1 ○ Annex 7 3.2.1 ○ Annex 7 6. NA NOVC-HEVNA ○ ○ Annex 7 3.2.1 ○ Annex 7 3.2.1 ○ Annex 7 6. NA OVC- HEV CSNA ○ ○ Anx 6 1.2.9/ Anx 8 4.1.1.2 ○ Anx 7 3.2.1/ Anx 8 4.2.1.3 ○ Anx 7 6./ Anx 8 4.2.1.3 NA CDNA ○○ (*3) NA ○ (*5) Annex 8 4.4.1.1 NA ○ Annex 8 4.2.1.1 ○ Annex 8 4.2.1.2 ○ Annex 8 4.3.1.3 ○ (*2) Annex 8 4.4.1.2 4.4.1.3 4.4.1.4 Comb ined NA ○ Annex 8 4.1.1.3 ○ Annex 8 4.2.1.4 ○ Annex 8 4.2.1.5 NA PEVNA ○○ (*1) NA ○ (*5) Annex 8 4.4.2.2 NA ○ Annex 8 4.3.2.2 ○ (*1) Annex 8 4.4.2.1 FCVNA ○ (*4) NA ○ (*4) NA Emission compliance In each cycle ○ : agreed (*1) AER (*2) EAER,Rcda,Rcdc (*3) EAER,Rcda (*4) consumed H 2 / km (*5) AER,EAER Parameters for electrified vehicles (include working items) Reference only

14 EU proposal for CO2Japan proposal for CO2 1st 84% fail, 16% pass = 84% of vehicles need two or three tests. 50% fail, 50% pass 2nd 64% fail (=76%x84%), 36% pass (=24%x84%+16%) = 64% of vehicles need three tests. 25% fail,75% pass, including first test 3rd Average of three. EU and Japan proposal for ICE Use declared value Declared - 0.9%(σ) 16% - 0.45%(σ/2) 24% [%] +/- 0.0% 1st test (dCO2_1)2nd test (dCO2_2)1st and 2nd test Use declared value

15 expected number of tests for ICE Assumptions for calculation; Average (µ) = 0 Standard deviation (σ) = 0.9 % Judgment for second test is based on the average value of first and second tests. (i.e. σ for second test = 0.9/root (2) %) Initial JPN proposal dCO2_1 [σ] dCO2_2 [σ] EU proposal Expected Number of tests Current JPN proposal


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