Digital tachograph system with digital memory system

Abstract From the Canadian patent

Abstract of the Disclosure, A digital tachograph system includes a vehicle unit operative to detect vehicle performance characteristics such as vehicle speed, elapsed trip distance engine rpm, total engine revolutions, total fuel consumption rate of, fuel consumption and the like as a function of time. The foregoing vehicle performance characteristic data is displayed in the vehicle unit and is stored in a data memory located therein. A fixed base unit includes a central computer system for processing vehicle performance data storing the, data in a memory file and for reading out the vehicle performance data in the form of a printout graph plot, CRT, display or the like. The vehicle …