Informal document No. GRRF-55-25 (55th GRRF, 3-6 February 2004, agenda item 6.2.) UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55TH GRRF 3 –
Download ReportTranscript Informal document No. GRRF-55-25 (55th GRRF, 3-6 February 2004, agenda item 6.2.) UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55TH GRRF 3 –
Informal document No. GRRF-55-25 (55th GRRF, 3-6 February 2004, agenda item 6.2.) UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55TH GRRF 3 – 6 Feb. 2005 ETRTO proposal ETRTO GRRF55 Feb.2004 pag. 1 Tyre moulds • Tyre Industry investment and asset • Link to product performances • Link to product appearance & end-user information • Link to production capacity and delivery • From 1 to 20 moulds for every tyre type/designation • Every sidewall change imply: – Lead time and cost (review layout, logistics, rework, industrialization, quality control) – Production capacity lost ETRTO GRRF55 Feb.2004 pag. 2 TYRE SIDEWALL MARKINGS Load/Speed Performance + Noise (s = sound) PASSENGER 02MMMMMMM NNNNNNN-s 00NNNNNNN-s 02MMMMMMM COMM.VEH. 00MMMMMMM NNNNNNN-s NNNNNNN-s 00MMMMMMM MINIMAL dimensions: • logo “E x” is 12mm, height 6mm for the “E” and 4mm for the “x”; • logo “e y” is 12x8mm, height 4mm for the “e y” • legal homologation number: height 4mm ETRTO GRRF55 Feb.2004 pag. 3 ISO STANDARDS and UN/ECE REGULATIONS ISO Standards WET GRIP ISO 13325 Coast-by Test ISO 10844 Track Surface Pass. Tyres Draft available ROLLING RESISTANCE CV tyres started ISO 8767 (Pass.) ISO 9948 (CV) (4 methods) NOISE ETRTO UN/ECE Regulation Draft defined To be approved by ECE Draft proposal Type approval & Sidewall marking? GRRF55 Feb.2004 pag. 4 WET GRIP REG. – actual proposal PASSENGER LOAD/SPEED TEST WET ADHESION TEST REG.30 02 series REG.30 03 series TRUCK&BUS 02MMMMMMM REG.54 00 series 00NNNNNNN 30R-03MMMMMMM REG.54 01 series 02MMMMMMM SOUND TEST REG.xxx 00 series 30R-03MMMMMMM 00KKKKKKK-s ETRTO GRRF55 Feb.2004 pag. 5 + WET GRIP REG. – actual proposal PASSENGER LOAD/SPEED TEST WET ADHESION TEST REG.30 02 series REG.30 03 series TRUCK&BUS 02MMMMMMM REG.54 00 series 30R-03MMMMMMM REG.54 01 series RUNFLAT tyre prescriptions SOUND TEST 00NNNNNNN 02MMMMMMM REG.xxx 00 series 30R-03MMMMMMM 00KKKKKKK-s ETRTO GRRF55 Feb.2004 pag. 6 + NEW PROPOSAL – sidewall marking optimization PASSENGER LOAD/SPEED TEST REG.30 02 series RUNFLAT tyre prescriptions TRUCK&BUS 02MMMMMMM REG.54 00 series 00NNNNNNN SOUND TEST REG.xxx 00 series 02MMMMMMM – s WET ADHESION TEST REG.xxx 00 series 02MMMMMMM – s w ETRTO GRRF55 Feb.2004 pag. 7 NEW PROPOSAL – sidewall marking optimization PASSENGER LOAD/SPEED TEST REG.30 02 series TRUCK&BUS 02MMMMMMM REG.54 00 series 00NNNNNNN SOUND TEST REG.xxx 01 series 02MMMMMMM – s01 WET ADHESION TEST Roll. Resistance Test REG.xxx 00 series 02MMMMMMM – s01 w REG.xxx 00 series 02MMMMMMM – s01 w r ETRTO GRRF55 Feb.2004 pag. 8