Title :
An on-board sensor for percent alcohol
Author :
Hile, John W. ; Rabe, Paul R.
Author_Institution :
General Motors Research Laboratories, Warren, MI
Abstract :
Ethanol additions to the Brazilian fuel supply are seasonal and regionally variable. Thus cars in Brazil must now function with gasoline/alcohol mixtures ranging in alcohol content from 0 percent to 30 percent. A sensor system is described which measures the on-board alcohol concentration so that carburetion and/or spark timing corrections can be made for optimal engine operation.
Keywords :
Automotive engineering; Capacitance; Dielectric constant; Diesel engines; Ethanol; Fuels; Petroleum; Sensor systems; Sparks; Timing;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/T-VT.1978.23736
