Method for storing run data of a vehicle in the memory of an electronic tachograph and apparatus for carrying out the method

Abstract From the Canadian patent

A method and apparatus are disclosed for storing run data of a vehicle in the memory of an electronic tachograph and displaying these data with a predetermined resolution. The method comprises the steps of sensing the movement of the vehicle by means of a road sensor providing digital distance and velocity data from signals of the sensing step proportional to the advance of the vehicle and the momentary velocity, respectively and, reading the digital data in subsequent cells of data memory of the tachograph in predetermined regular periods corresponding to the degree of resolution. The data are then read in subsequent cells of an accident memory which has a substantially smaller storage …