Energy/Environment

Biofuel opportunities and pitfalls Annual growth in biofuels has been strong but is expected to slow in the near future. Read full story

Benteler leads engineering of MAN heavy-duty serial hybrid concept Featuring a diesel engine from Audi as a range extender and modular energy storage beneath the driver’s cab, the MAN Metropolis plug-in hybrid truck concept—developed in cooperation with Benteler Engineering Services and revealed at the recent IAA Hanover Show—will begin a two-year field test as a refuse collection vehicle in January 2013. Read full story

Compressed natural gas gains momentum New commercial vehicles, onboard storage tanks, and shipping container-sized fueling stations signal the latest CNG products. Read full story

Powertrain outlook for Europe Neil Pattison, Cummins' Director of On-Highway Engine Business for EMEA & CIS, discusses Euro 6, natural gas, and hybridization at the recent IAA Commercial Vehicles Show in Hanover. Read full story

Drivetrain efficiency of heavy-duty vehicles targeted Government/industry team to study parasitic losses derived from waste energy expended in the agitation of the lubricating oil and surface-to-surface component friction, which together can account for more than a tenth of overall vehicle energy losses. Read full story

Choosing the right tube joint seal for HFO-1234yf refrigerant compatibility One of the many system components of concern to OEMs and aftermarket service providers is the elastomeric seals used at the different joints in automotive air-conditioning. One critical aspect of seal performance is permeation, and the material compatibility issues likely to arise in relation to it, due to the new refrigeration chemistry. Read full story

Materials lead the way to vehicle mass reduction Reducing a vehicle's mass opens the door for a downsized engine and transmission, a lighter cradle and body structure, smaller wheels and brakes, as well as a weight-slimmed suspension. The start point for this ripple effect is materials. Read full story

Navistar’s take on ComVEC, next-gen diesels Navistar is providing the executive leadership for this year’s SAE Commercial Vehicle Engineering Congress, taking place in Rosemont, IL, on Oct. 2-3. Ramin Younessi, Group Vice President, Product Development, Navistar Inc., discusses how the Congress is shaping up and the company’s future product plans incorporating the next-gen ICT+ (in-cylinder technology plus) system, which adds urea-based aftertreatment to its EGR technology. Read full story

Bridgestone's new Ecopia truck tire offers little resistance The supplier's newest commercial-truck tire provides long tread life without dinging an over-the-road vehicle's fuel economy numbers. Read full story