Inadequate fuel e.g. petrol, utilization detecting method for e.g. commercial vehicle, involves calibrating gas temperature based on engine parameter, and comparing real temperature of gas with reference temperature for same parameter value

摘要

The method involves calibrating a temperature of an exhaust gas based on a controlled or spontaneous internal combustion engine parameter e.g. driving state of an accelerator pedal, engine speed, intake air temperature and inlet pressure. A real temperature of the exhaust gas is compared with respect to a reference temperature for a same value of the engine parameter. The calibrated temperature is associated with engine cartographies controlling a fuel e.g. petrol, injection time based on values of the engine parameter.