Particle filter regeneration control method for internal combustion engine of vehicle, involves evaluating oxygen quantity consumed in exhaust line, and using test bench to control motor through control unit to admit fuel quantity in line

摘要

#CMT# #/CMT# The method involves regenerating a particle filter (6) by an inlet and combustion of a fuel quantity in an exhaust line (5). Rate of oxygen contained in an exhaust gas circulating in a portion of the line is measured to evaluate temperature in the line. Quantity of oxygen consumed inside the line is evaluated using the measured rate to supply exothermal chemical reactions in the line. A test bench is used to control a motor (2) through a control unit to admit a fuel quantity in the line, where the bench is electrically connected to the control unit of the motor. #CMT#USE : #/CMT# Method for controlling regeneration of a particle filter of an internal combustion engine of a vehicle. #CMT#ADVANTAGE : #/CMT# The quantity of oxygen consumed inside the exhaust line is evaluated, thus permitting to signal presence or non presence of combustion in the exhaust line in short time, and hence evaluating regeneration or non regeneration of the particle filter in a rapid manner. The test bench is used to control the motor through the control unit to admit the fuel quantity in the exhaust line, thus realizing regeneration of the filter in a precise manner using the temperature measurement of the filter. The method permits to deduce quantity of heat brought in the particle filter by the exothermal reaction without having to directly measure the temperature using a temperature sensor. The method permits to know the rate of oxygen in an upstream of the particle filter with respect to a direction of burnt gas, thus determining the quantity of oxygen consumed in the filter according to quantity of oxygen available in the inlet of the filter in a precise manner. The method permits to preserve the catalyst/filter from damage due to high internal temperature. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an engine adapted to implement particle filter regeneration control method.`(Drawing includes non-English language text)` 2 : Motor 3 : Combustion chamber 5 : Exhaust line 6 : Particle filter 10 : Free exhaust outlet.