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UN Regulations
e definitions of electric motors in the technical information document - Addition of a description regarding tyre temperature adjustment - Amendment of the definition of partial power factor kp. - Amendments of the extraction of powertrain components. - Amendments of the method for determining gears. 6 AgreementregardingUN/ECEregulation 54 S27 2024/2 2025/2/11 2025/1/10 Pneumatic Tyres (Commercial Vehicle) - Deletion of 6.1.4.3. and chan...
Regulations Updated at: 2026/03/27
Trends on Harmonization of Vehicle Standards at UN
OL INTERLOCK INSTALLATION EEC 2021/1341 DRIVER DROWSINESS AND ATTENTION WERNING SYSTEMS EEC 2023/2590 SUPPLEMENT TO EEC 2019/2144 (ADVANCED DRIVER DISTRACTION WARNING (ADDW) SYSTEMS) EEC 2022/545 EVENT DATA RECORDER EEC 65/2012 IMPLEMENTING TYPE-APPROVAL REQUIREMENTS FOR THE GENERAL SAFETY (gear shift indicators) (Repealed) EEC 130/2012 IMPLEMENTING TYPE-APPROVAL REQUIREMENTS FOR THE GENERAL SAFETY (Vehicle access and manoeuvrability) (...
Regulations Updated at: 2026/02/20
Fuel Economy/CO2 - USA Federal
torway driving with an average speed of 48.6 mph and a maximum speed of 60.0 mph [16]. The test cycle is run twice, if practicable immediately after the FTP test. The first run is for preconditioning and the second for sampling. The two runs are separated by 15 seconds of idling with the vehicle in gear [15]. The HFET drive cycle is given in tabulated form in Code of Federal Regulations, Title 40 Part 600, Appendix I [10] and the speed vs time gr...
Regulations Updated at: 2025/09/24
Fuel Economy / CO2 - China
res inputs for tyre rolling resistance (calculated from a prescribed formula), air resistance (calculated using a drag coefficient supplied by the manufacturer from test results), tyre rolling radius (calculated using a prescribed formula) and engine speed and torque calculations with a pre-defined gear shift strategy. Heavy duty – 2008 MOT Standards The following MOT standards applied, starting in 2008: Standard JT 711-2008, for passenge...
Regulations Updated at: 2025/01/23
WLTP (Worldwide Harmonized Light vehicles Test Procedures)
to 2018 was approved and started. The updated activities, road map and organization can be seen in below “WLTP development activities”. Amendment 3 [12] was incorporated into existing GTR 15 and published on 1 February 2018[11]. The authorization to develop phase 2 of GTR 15, the improvement of gear shifting procedure and the change of test cycle name for class 3 vehicles were main items. More details are reported in following sections. Amend...
Regulations Updated at: 2024/12/13
Emission Standards - China Passenger Cars & Light Duty Trucks
hicles without crankcase forced ventilation, the crankcase pollutants should be included in the total exhaust pollutants. Table 5: Engine operating conditions for the crankcase emissions test [19] Operating condition Speed(km/h) Power absorbed by the chassis dynamometer 1 Idling None 2 50±2 (Gear 3 or forward gear) Equivalent to the adjusting state under 50km/h in Type I test 3 50±2 (Gear 3 or forward gear) Set value of condition 2 mult...
Regulations Updated at: 2024/12/13
UN regulations - Noise
orrection number. Month Name # Amendment Working Documents # (ECE/TRANS/WP.29/) Issuing date Entry into force Title Description(To see the original document, click the text.) Feb. 2020 Adopted proposal regarding UN/ECE regulation 51 03 S5 2019/4/Rev.1 2019/11/11 2019/10/15 Noise -Regarding the gear selection, the flow chart shall be corrected and the application extent of the partial load driving procedure shall be revised. -Correction of th...
Regulations Updated at: 2020/02/05



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