Module for Taximeter Use of CAN Interface in Car

The modern cars use information about the speed from the ABS system. This paper proposes a solution for taxicabs. The developed taximeter device uses the impulses from ABS for measurement of the distance of road and amount of money to be charged. This module reads current information about the speed using an internal CAN interface and generates a number of impulses proportional to the current vehicle speed. The device doesn't influence the work of the other electronic systems of the vehicle. It can be used in any modules produced after 2000. The device is cheap. It was approved in real road conditions and its accuracy is 1.5%.