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.