Heavy Duty | Steve Sturgess is a longtime automotive journalist who specializes in the transportation industry. www.stevesturgess.com. the starter cranks on a 24V circuit. Add to that weight savings – especially if ultracapacitors are used – and it becomes an attractive proposition. Several years ago, a number of papers were presented at SAE (Society or Automotive Engineers) meetings on the need and benefi t of going to a 42V architecture. Th e proliferation of electronics, electric power steering and other systems taken off the engine and powered electrically indicated that a shift to 42V (three-battery – three times the nominal 14V of a conventional six-cell lead acid battery) power may become necessary. Improved electrical effi - ciencies, LED lighting and a lot more has taken the pressure off on the passenger car side. But in interviews with Russ Sukouski, manager of global innovation, Navistar International, on the topic of future fuel economy, he mentioned some of the technologies for 2017 and beyond would drive car and truck manufacturers towards 42V to 48V electrical systems. Navistar (www.navistar. com) is a holding company whose subsidiaries and affi liates produce International brand commercial and military trucks, proprietary diesel engines and IC Bus brand school and commercial buses. With the high electricaldemand passenger cars, this could be as near as 2017. SUM-UP Looking ahead, it seems that the passenger car engine stop-start will drive towards a hybrid battery that has lead-acid, Li-Ion or another battery chemistry to drive the majority of electrical loads, possibly combined with an ultracapacitor module that could be integrated into the same case to handle the starter duties. In heavy trucks, AGM lead-acid batteries may be around for a long while yet, combined with a Group 31 ultracapacitor setup and maybe a 24V starter circuit. Aft er all, with the starting load taken off the lead-acid batteries, they will have – at a minimum – double their life today and remain the economic best-bet. Lastly, the application of ultracapacitors is very environmentally and economically benefi cial because they prolong the diesel starting system’s service life, reduce maintenance expenses and fuel waste, reduce CO2 and unrecyclable waste, plus increase engine life. HINO.COM POWERON. BUSINESS INTELLIGENCE IS HERE: HINO INSIGHT. From the moment you take delivery of a HINO INSIGHT equipped connected vehicle, you’re on the road to more uptime and lower operating costs. Hino INSIGHT combines Telematics, Remote Diagnostics and Case Management in an industry first platform that puts critical vehicle and driver management tools at your fingertips. Ask for a demo or visit hino.com to see how INSIGHT will put you ahead of the game. VehicleServicePros.com/10123721
FleetMaintenance_July_2016
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