Parameter WLTC (Low + Mid + High + exHigh) WLTC city (Low + Mid) Low Mid High ExHigh Explanation x CO2 determined from the charge depleting test (UF weighted) x x x x x CO2 determined from the charge sustaining (CS) test x Utility factor weighted CO2 determined from the CD and CS test FCCD x Fuel consumption determined from the CD test (UF weighted) FCCS x x x x x Fuel consumption determined from the CS test x Utility factor weighted fuel consumption determined from the CD and CS test x Electric energy consumption determined from the CD test (UF weighted) ECAC, weighted x Utility factor weighted electric energy consumption determined from the CD test EC x x x x x x Electric energy consumption determined from the recharged energy and the equivalent all electric range EAC x Recharged electric energy RCDC x Charge depleting cycle range AER x x All electric range determined from the CD test (distance until first engine start) EAER x x x x x x Equivalent all electric range determined from CD and CS test (pure electrically driven distance)
default (calc.) Calculation of default road load based on vehicle parameters 5.2. 5.2. f0, N f1, N/(km/h) * f2, N/(km/h)² wind tunnel Measurement of road load within labs by wind tunnel and a dynamometer 6. 6.7.3. f0, N f1, N/(km/h) f2, N/(km/h)² - with a flat belt dynamometer - - with stabilised speeds or with deceleration - - - with warm-up by driving or warm-up by dragging the vehicle - with a roller chassis dynamometer plus correction function - - with stabilised speeds or with deceleration - - - with warm-up by driving or warm-up by dragging the vehicle * This coefficient is set to zero for this method. 402. The characteristic differences between these methods are shown in Table 12. Table 12 Characteristic differences between the road determination methods Method Coast down Torque meter RL matrix family Default RL Wind tunnel Focus/scope passenger vehicles passenger vehicles, wheel hub motor large vans above 3 tons max. laden mass for small series passenger vehicles Measured value velocities and times during coast down wheel torque at constant speeds (extrapolate measured RL) nothing is measured air drag and drivetrain plus RR losses Positive and negative attributes + well known + simple measurement equipment - long test track needed - weather dependent - inaccurate + shorter test track + measures "real" road load - weather dependent - complex process + balanced compromise between test effort and accuracy - slightly worse road load (safety margin) +cheapest method + no test effort - worst case road load + reproducible and weather independent + accuracy + suitable for secret designs - expensive equipment
9 09 July 2012 Gear Shift calculation tool updated and streamlined 10 09 July 2012 File_DHC_B_ANNEX_09-July-2012.doc Revised explanatory note on how to use the Gear Shift calculation tool 11 23 July 2012 File_8 - WLTP_VP2_Participating Labs_list_23-July-2012.docx File updated 12 23 July 2012 File_9 - File updated 13 25 July 2012 File_6.1 - New version of the template to report test results. The original file has been split in two files, now including also EV/HEV and PM/PN features File_6.2 - 14 25 July 2012 File_0 - Read me_25-July-2012.docx File updated 496. In total, 34 different laboratories, institutions and manufacturers participated in the validation phase 2. 497. The results were delivered to the JRC server and then collected in an Access database. A number of 109 vehicles were tested in the validation phase 2. These can be categorized into subgroups as shown in Table 15. Table 15 Overview of the validation 2 vehicle sample categories and numbers 498. Information the chassis dynamometers was delivered by 33 of the 34 participating laboratories. For 19 laboratories it was possible to measure all four phases of the WLTC in one test, because their test benches had four bag measuring devices. The other laboratories had only three bag measuring devices. Most of them measured the first three phases (Low, Medium, High) with a cold start and then phases Low, Medium and in hot condition in a second test. Some participants measured different phase combinations in addition to the base test. 499. For the larger part of the vehicles only the basic tests were performed. The base test consists of the WLTP test with a cold start at the Test Mass of vehicle H (TMH). For 92% of the ICE vehicles an additional hot start test was performed. It was foreseen to repeat all tests at least twice, so that three results could be used to assess the repeatability. Some participants did additional tests with parameter variations. 500. The following parameter variations were performed: (a) Four filter (one per phase) and one filter tests (for all phases) for particulate mass (vehicles 1 and 3);