Method for detecting refueling operation of urea in auxiliary tank in selective catalyst reduction (SCR) system of motor vehicle, involves stopping the filling operating cycle by comparing stored value and current value of fuel level

摘要

The level of fuel in auxiliary tank in selective catalyst reduction system is detected (110) by a level sensor, after detecting standstill state of the tank for predetermined waiting time. A subsequent filling operating cycle is started (132) based on the detected level of fuel in tank. The filling operating cycle is stopped on the basis of a comparison (140) between the stored value and current value of fuel level in tank. Independent claims are included for the following: (1) computer program for detecting refueling operation of fuel tank; and (2) computer program product for detecting refueling operation of fuel tank.