Breakthrough, Durable Stop-Start System May Be Available Soon

by Jon LeSage

Stop-start sys­tems are becom­ing stan­dard on cars made for the Euro­pean mar­ket and they’re grad­u­al­ly becom­ing more com­mon in the US.

For those con­cerned about the affect stop start will have on the dura­bil­i­ty of the car going through too many igni­tion star­tups to be reli­able long-term, there’s some good news.

UK-based Con­trolled Pow­er Tech­nolo­gies (CPT) is guar­an­tee­ing its Speed­Start belt-
inte­grat­ed starter-gen­er­a­tor sys­tem for 1.2 mil­lion restarts – high­est so far in auto indus­try.

Dur­ing a one-year long test, it could han­dle as many as 7,200 restarts every day with engine cool-off peri­ods going between five and 25 sec­onds.

While automak­ers pro­mote stop-start sys­tem in their vehi­cles as a smart way to increase fuel econ­o­my, the US Envi­ron­ment Pro­tec­tion Agency con­tin­ues to be ret­i­cent about it, and is yet to be favor­able to it for mileage rat­ings.

Most of the cur­rent stop-start sys­tems built into cars on roads can typ­i­cal­ly han­dle between 150,000 to 300,000 stop-starts, as man­dat­ed by OEMs.

Most of the starter motors on cars are good for about 30,000 cycles. Stop-starts extra longevi­ty is due to heav­ier-duty com­po­nents. They’re designed to hand a stop and restart process dozens of times dur­ing a typ­i­cal dri­ving trip.

Vehi­cles are get­ting more miles dur­ing their life­cy­cles as the aver­age age keeps increas­ing.
CPT says mod­ern cars can eas­i­ly see 250,000 miles in 15 years nowa­days, and future tech­nolo­gies may see them worked even hard­er.

SOURCE: Green Car Reports



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