1975-02-01

A Study of Technological Improvements in Automobile Fuel Consumption 750005

A study was conducted to determine the potential reduction in automotive fuel consumption based on the use of innovative systems and improved components. Technological areas investigated were: spark ignited engines with and without turbocharging, electronic feedback controlled fuel injection with duel bed catalytic converters, stratified charge combustion, light weight diesels, lock-up torque converters, continuously variable ratio transmission, tires aerodynamic drag, vehicle weight, engine accessories and optional equipment.
Standard and compact-size 1973 model year vehicles were selected for analysis using a computer-simulation program to predict fuel usage and performance with and without incorporation of the improvements. In addition estimates were made as to whether modified vehicles complied with study constraints such as emission, safety, noise and user requirements. Cost effectiveness, manufacturing adaptability and probable time frame for introduction of introduction of improvements were also estimated.
The study results indicated that the goal of 43% improvement in fuel economy (mpg), or 30% reduction in fuel usage (gpm) of a 1973 model year compact and standard size vehicle could be attained on a mass produced scale by the early 1980s.

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