Mazda is developing a new ignition process that the company hopes will improve fuel efficiency in gas engines by 50%.
Mazda currently uses gasoline engines with 40 percent efficiency. The aim is to get that number up to 60 percent by 2020.
Mazda is also looking for ways to reduce heat loss through the exhaust system. This normally accounts for about 30 percent of the fuel's energy.According to Autocar, Mazda is developing its homogeneous charge compression ignition technology (HCCI), where the mixture is ignited by compression rather than a spark, similar to a diesel engine. As a result, the technology will require raising the compression ratio from about 14.0:1 to 18.0:1 with a precise control of the combustion chamber in order to avoid engine knock. Mazda hopes the technology combines the cleaner emissions of a gasoline engine with the fuel economy of a diesel.