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ETRTO GRRF55 Feb.2004 pag. 1 UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55 TH GRRF 3 – 6 Feb. 2005 ETRTO.

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Presentation on theme: "ETRTO GRRF55 Feb.2004 pag. 1 UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55 TH GRRF 3 – 6 Feb. 2005 ETRTO."— Presentation transcript:

1 ETRTO GRRF55 Feb.2004 pag. 1 UN/ECE REGULATIONS proposal for optimization of regulatory framework and tyre type approval 55 TH GRRF 3 – 6 Feb. 2005 ETRTO proposal Informal document No. GRRF-55-25 (55th GRRF, 3-6 February 2004, agenda item 6.2.)

2 ETRTO GRRF55 Feb.2004 pag. 2 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

3 ETRTO GRRF55 Feb.2004 pag. 3 Load/Speed Performance + Noise (s = sound) TYRE SIDEWALL MARKINGS 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 02MMMMMMM NNNNNNN-s 00MMMMMMM 00NNNNNNN-s 02MMMMMMM NNNNNNN-s 00MMMMMMM PASSENGER COMM.VEH.

4 ETRTO GRRF55 Feb.2004 pag. 4 ISO 8767 (Pass.) ISO 9948 (CV) (4 methods) ROLLING RESISTANCE Draft proposal Pass. Tyres Draft available CV tyres started WET GRIP Draft defined To be approved by ECE ISO 13325 Coast-by Test ISO 10844 Track Surface NOISE UN/ECE Regulation ISO Standards ISO STANDARDS and UN/ECE REGULATIONS Type approval & Sidewall marking?

5 ETRTO GRRF55 Feb.2004 pag. 5 WET GRIP REG. – actual proposal REG.30 02 series REG.54 00 series PASSENGERTRUCK&BUS LOAD/SPEED TEST 02MMMMMMM 00NNNNNNN SOUND TEST 00KKKKKKK-s 02MMMMMMM 30R-03MMMMMMM REG.xxx 00 series + REG.30 03 series REG.54 01 series WET ADHESION TEST 30R-03MMMMMMM

6 ETRTO GRRF55 Feb.2004 pag. 6 WET GRIP REG. – actual proposal REG.30 02 series REG.30 03 series REG.54 00 series PASSENGERTRUCK&BUS REG.54 01 series LOAD/SPEED TEST WET ADHESION TEST SOUND TEST 02MMMMMMM 00KKKKKKK-s 02MMMMMMM 30R-03MMMMMMM 00NNNNNNN REG.xxx 00 series + RUNFLAT tyre prescriptions

7 ETRTO GRRF55 Feb.2004 pag. 7 NEW PROPOSAL – sidewall marking optimization REG.30 02 series REG.54 00 series PASSENGERTRUCK&BUS LOAD/SPEED TEST 02MMMMMMM 00NNNNNNN SOUND TEST 02MMMMMMM – s REG.xxx 00 series WET ADHESION TEST 02MMMMMMM – s w REG.xxx 00 series RUNFLAT tyre prescriptions

8 ETRTO GRRF55 Feb.2004 pag. 8 NEW PROPOSAL – sidewall marking optimization REG.30 02 series REG.54 00 series PASSENGERTRUCK&BUS LOAD/SPEED TEST WET ADHESION TEST SOUND TEST 02MMMMMMM 02MMMMMMM – s01 w 02MMMMMMM – s01 00NNNNNNN REG.xxx 00 series REG.xxx 01 series Roll. Resistance Test 02MMMMMMM – s01 w r REG.xxx 00 series

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