By Ali Emadi – An auto has four different power transfer systems: electrical, mechanical, pneumatic, and hydraulic. Electrical systems, generally, are the most efficient. And they can be monitored and communicated with more effectively than the others, which means they can be optimized and controlled for efficiency and performance.
Electrifying non-propulsion loads raises the electrification factor in modest increments up to perhaps 15 to 20 percent. Electrifying a vehicle’s mode of propulsion produces a much greater electrification factor, reaching as high as 50 to 70 percent in hybrid electric powertrains and near 100 percent in all-electric vehicles. Based on back-of-the-envelope calculations, I’d suggest that the average electrification factor for new vehicles manufactured worldwide today is only about 5 to 10 percent. more> http://tinyurl.com/nfabdjp