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New Generation Wide Base Single Truck Tire. WASHTO Spring COHT Meeting March 10, 2009 Albuquerque, NM. Stan Lew Industry Standards & Government Regulations Michelin North America, Inc. NGWBS Tire Technology. Michelin ® – XOne ®
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New Generation Wide Base Single Truck Tire WASHTO Spring COHT Meeting March 10, 2009 Albuquerque, NM Stan Lew Industry Standards & Government Regulations Michelin North America, Inc.
NGWBS Tire Technology • Michelin® – XOne® • Over-the-road truck/trailer, dolly, motorhome, dump, logging, waste hauling, bus. • > 500,000 wheel positions fitted today. • Bridgestone – Greatec • Continental – HTL1 • Others – in development
NGWBS Regulatory IssuesRe-cap • State regulatory issues • State permit-issued operation (O/S, O/W, LCV) • “... each axle (non-steering) must have 4 tires ...” (OR, SD, OK) • “... two tires at each end of each axle ...” (FL, KS, NY) • “... minimum axle width ...” (CA) • 500 lpi (MT, NV (600 lpi tentative), SD, UT, WA) • 2-axle 35’ - 45’ bus (TX) • Responded questions • Tire/pavement contact stresses (AL-Qadi & NCAT studies) • Traction (snow traction data NGWBS v duals, users) • Stability (SAE and ORNL reports, user feedback)) • “Limping” (FMCSR 393.75 on no vehicle/flat tire operation) Proposal: MHTA model single tire 600 lpi/SW ≥ 15” legislation (or 550 lpi).
NGWBS - U.S. StatesLCV Oversize/Overweight Permitted Operations(GVW > 36,364 kg/80,000 lbs) Alaska DC Hawaii Forms of State restrictions Resolution ( work in progress) CA tractor track width
NGWBS - Florida • Admin. Code 14 - 26 - "Tire Requirements“ • Statewide application (v original change for FL Turnpike). • “Public Workshop” March 6, 2009.
California - TPMChap. 3Axle Width Minimum = 96” v Track Width 71.5” 0” offset TPM min. = 96” 74.6” 2” offset 94” Michelin NGWBS axle width minimum proposal: - “... for NGWBS tires the minimum axle width shall be 93 inches to qualify for extralegal weight....”.
California Air Resource Board - AB32 • GHG regulation based on the U.S. EPA"Smartway Truck Efficiency" program. • - Objective for Class 8 tractor/trailer 10% - 20% fuel reduction and emissions reductions. • - Approved fuel efficient tires include NGWBS tires (XOne, Greatec) and others.
U.S. Energy Independence and Security Act (EISA) - Dec. 2007 • DOT to include truck fuel economy study. • National Academy of Sciences • Assess technologies to improve fuel economy of medium, heavy-duty, and work trucks. • Project scope (report due March 2010) • Assessment of fuel economy technologies for medium and heavy-duty vehicles. • Regulatory barriers and societal benefits of NGWBS tires included in assessment. • NHTSA • Conduct a study to develop recommendations for fuel economy standards for medium and heavy duty vehicles and work trucks. • 1 year after the NAS study. • Develop regulations for medium and heavy duty vehicles and work trucks (within 2 years of NHTSA study).
NGWBS - Mexico • NGWBS approval @ 18,000# /axle. • - March 5, 2008 Diario Oficial on SCT approval. • ● States ”Michelin X-One radial, tubeless, Infini-coilTM, 455/55R22.5 and 445/50R22.5, LR L” • NGWBS tire continuing efforts. - Ministry of Transport proposal • ●Braking, handling, maneuverability, and blow-out data for double trailer combination. • - Michelin testing completed previously and to be reviewed for submission.
NGWBS – Canada April 2008 MOU # 6K kg/axle Class 3 & secondary roads *Influential province NGWBS to Canadian dual tire axle (9,000 kg/19850#) parity ($ $NGWBS permits) NGWBS 8,500 kg/18,750# YT NUNAVUT NWT # NFLD # QUE * $ $ BC * PEI MAN NS ALTA * SASK ONT * NB # $ $ NGWBS tire @ U.S. dual tire axle parity (7,700 kg/17,000#)
New Generation Wide Base Single Truck Tire WASHTO Spring Highway Transportation Committee Conference March 10, 2009 Albuquerque, NM Questions ? Stan Lew Industry Standards & Government Regulations Michelin North America, Inc.