Air-fuel control in a microprocessor-based system for improving automobile fuel economy

Abstract

The air-fuel mixture requirements for an automobile equipped with a proposed microprocessor-based system for improving automobile fuel economy were analyzed. This system is for acquiring data from an automobile and controlling fuel flow and spark timing to achieve fuel savings and reduced exhaust emissions. The air-fuel control in this system is adaptive with respect to changing operating conditions. Its cost could be easily offset by savings in automobile fuel and maintenance costs.