Coal Age

JUN 2013

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bauma 2013 continued Highway Driveline Technologies. "In an era when equipment manufacturers are finding it difficult to identify incremental gains in efficiency, this technology offers a tremendous leap forward in productivity and reduced costs that easily fits into existing design envelopes." Spicer PowerBoost uses an advanced energy-management system to evaluate the levels of power needed in the entire vehicle system, predict operating demands, and determine the most efficient means of operation. Hydrostatic energy is captured in an accumulator from the powertrain during low-power operation of the engine and recuperated from braking and working. When additional power is required, such as accelerating from a full stop, lifting a load, or driving into the pile, the advanced energy-management system uses the stored energy in the accumulator to provide an additional source of power for improving performance, increasing productivity, and reducing fuel consumption. The Spicer PowerBoost system can also be configured to minimize idling by shutting off the diesel engine and accessing power captured in the accumulator for vehicle operations that consume low amounts of energy, such as inching, light working conditions, and low travel speeds. Spicer PowerBoost solutions are ideal for applications with frequent, intense bursts of acceleration, deceleration, lifting, and lowering during cyclic maneuvering that support the recuperation of working and braking energy. Construction equipment, material-handling machines, and onhighway vocational vehicles are the initial targets for Spicer Powerboost. The system provides the additional power needed for energy-consuming activities such as driving into a pile or lifting a load, it enables machine manufacturers to reduce the engine size for power outputs from 55 to 250 kW (74 to 335 hp) across a wide range of vehicle applications. Technology-Mining and Mineral Sciences Laboratories. At bauma, Volvo Penta debuted new start/stop functions for diesel engines. It has become more and more common lately in passenger vehicles—the clever function that stops the car engine as the car stops at, for example, a stop light. Now Volvo Penta has introduced start/stop functionality for industrial engines, which could help operators reduce fuel consumption by 5% or more. The automatic start/stop function works in the same manner as in a private car. When the machine's engine is idling, the engine is turned off after a pre-set time span—usually 5–10 seconds. And, when the driver activates any of the machine's controls, the engine starts immediately and the work can continue. The automatic start/stop function is an optional accessory. In operation, it can be deactivated/reactivated when needed. Volvo Penta Offers Start-stop Engines In the Februaty 2013 bauma preview, Coal Age readers might recall that Volvo Penta was one of the first diesel engine manufacturers to receive stage 3B and Tier 4i certificates for its entire engine lineup. The company also announced the Volvo Penta 13L Tier 4i diesel engines were the first engines to be certified by the U.S. Mine Safety and Health Administration and the Canadian Center for Mineral and Energy June 2013 www.coalage.com 41

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