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Magazine

 

TOUCH TAKES HOLD, switches lend a hand

SAE Off-Highway Engineering: October 7, 2016

Terry Costlow
  • Magazine Article
  • 16OFHP10_07
Published 2016-10-01 by SAE International in United States

Touch screens are becoming the norm, but knobs and switches are often used to improve operator comfort.

System developers are leaving no technology unturned in their effort to boost performance by improving comfort. Touch screens dominate human-machine interface (HMI) development, but rotary knobs and push buttons remain relevant, as do joysticks, which could replace steering wheels.

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EDITORIAL: Automotive influence on off-highway cabs

SAE Off-Highway Engineering: October 7, 2016

Editor-in-Chief-Ryan Gehm
  • Magazine Article
  • 16OFHP10_09
Published 2016-10-01 by SAE International in United States

Describing new features and technologies for off-highway vehicles as “automotive- style” sometimes can be considered as marketing hype-words meant to tap into views that passenger vehicles are more progressive and closer to the cutting-edge. But often the link is more substantive-engineering know-how actually migrated from pavement-bound machines to those that call dirt home.

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Auxiliary hydraulics highlight productivity focus for Deere reduced-tail-swing excavators

SAE Off-Highway Engineering: October 7, 2016

Ryan Gehm
  • Magazine Article
  • 16OFHP10_13
Published 2016-10-01 by SAE International in United States

John Deere recently updated the 135G and 245G LC reduced-tail-swing excavators, which are designed to maneuver in tight spots for projects such as urban renewal, street repair and underground utility construction. The machines are equipped with EPA Final Tier 4/EU Stage IV diesel engines, delivering 101 hp (75 kW) for the 135G and 159 hp (119 kW) on the 245G LC.

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Full electric drivetrain for HD vehicles the result of supplier alliance

SAE Off-Highway Engineering: October 7, 2016

Ryan Gehm
  • Magazine Article
  • 16OFHP10_11
Published 2016-10-01 by SAE International in United States

Engineers at Colorado-based UQM Technologies have collaborated the past several months with their counterparts at Eaton's Vehicle Group and Pi Innovo, both located in Michigan, to develop a full electric drivetrain system for the medium-and heavy-duty EV markets.

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Autonomous solutions in agriculture

SAE Off-Highway Engineering: October 7, 2016

  • Magazine Article
  • 16OFHP10_02
Published 2016-10-01 by SAE International in United States

Deere advances autonomous driving and machine system automation to increase productivity and convenience in farm production.

Advances in vehicle electronics and satellite navigation technologies have resulted in automatic guidance systems in agriculture that enable increased productivity and convenience. Systems such as John Deere's AutoTrac provide closed-loop control of a vehicle to a straight line or curved path via steering control. Electrohydraulic controllers provide steer-by-wire integration with the vehicle. Key components of these systems include a global positioning satellite (GPS) receiver, a method of steering actuation and a user interface.

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Optimizing waste heat recovery for long-haul trucks

SAE Off-Highway Engineering: October 7, 2016

  • Magazine Article
  • 16OFHP10_04
Published 2016-10-01 by SAE International in United States

CNH Industrial and AVL run a demonstrator vehicle with a WHR system to show significantly reduced fuel consumption.

A waste heat recovery (WHR) system for a long-haul truck application was examined via simulation, test bench, and public road vehicle testing as part of a joint project between CNH Industrial and AVL, with the goal of developing a cost-effective mechanical WHR system for an Iveco Stralis Euro VI truck. The WHR system uses exhaust recuperation only and employs up to 110 kW of exhaust waste heat for the organic Rankine cycle (ORC) in a typical European driving cycle.

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Fan-shroud optimization for enhanced thermal performance

SAE Off-Highway Engineering: October 7, 2016

  • Magazine Article
  • 16OFHP10_06
Published 2016-10-01 by SAE International in United States

CFD helps researchers from Argonne, Cummins and CD-Adapco to maximize cooling air mass flow rates through heat exchangers.

Tighter emissions requirements and underhood packing due to higher power demands from engines necessitate more optimized cooling packages. Fan and fan-shroud design is crucial for underhood airflow management. Fan shrouds funnel cooling air, which is sucked by the fan and passed through heat exchangers. Shroud design affects both the airflow and the noise generated by the fan.

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U.S. ARMY MARCHES TOWARD DRIVERLESS FUTURE

SAE Off-Highway Engineering: October 7, 2016

Lindsay Brooke
  • Magazine Article
  • 16OFHP10_08
Published 2016-10-01 by SAE International in United States

TARDEC targets vehicle autonomy with new V2V / V2X test bed in Michigan.

Four tractor-trailer rigs barreled eastbound on Interstate 69 in rural Michigan, their non-reflective olive drab and desert-tan paint and blast-resistant glass the giveaways that this was a U.S. Army exercise. Running nose-to-tail in convoy formation, each of the military Freightliners wore a forest of electronic sensors on its roof. And while the trucks each had an operator in full control behind the wheel, the quartet actually was driving toward an autonomous future.

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NanoSteel confident its new AHSS is ready for volume production

SAE Off-Highway Engineering: October 7, 2016

Ryan Gehm
  • Magazine Article
  • 16OFHP10_12
Published 2016-10-01 by SAE International in United States

Steel-technology development specialist NanoSteel is expanding its customer base for the new advanced high-strength alloys currently undergoing testing by OEMs and Tier 1s, as global automotive demand for stronger, lighter vehicle structures increases. The Rhode Island-based company, which emerged on the steel scene 12 years ago, also is working with additional steel mills to produce the AHSS sheet, according to David Paratore, CEO and President.

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Cummins goes for big power, low emissions with all-new X-Series heavy-duty diesels

SAE Off-Highway Engineering: October 7, 2016

Bill Visnic
  • Magazine Article
  • 16OFHP10_10
Published 2016-10-01 by SAE International in United States

Calling its new-generation X series heavy duty diesel engines symbolic of a “new era at Cummins,” executives and engineers for the Columbus, IN-based engine maker said the X Series lineup hits the big- and medium-bore market with a combination of class-leading power ratings and the ability to meet federal Phase 1 greenhouse-gas (GHG) and fuel-efficiency standards slated to begin next year.

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