Inventors:
Alexander T. Pol - Miami FL
International Classification:
F02D 4114
Abstract:
A method of finding and device for indicating and holding the economic speed of engines and vehicles, wherein the ratio of fuel consumption to engine torque or vehicle speed is continuously monitored based on the amplitude of impulses of such ratio, value and sign of the derivative of said ratio impulses, and wherein the point of maximum of the economic speed is used to control geared and travelling speed of the vehicle.