Patent 7230210 was granted and assigned to Renault on June, 2007 by the United States Patent and Trademark Office.
The invention concerns a method for controlling the operating conditions of a probe (11) associated with means purifying (7) exhaust gases of an internal combustion engine (2), which consists in comparing an output signal of the probe with a reference value, and in acting on the probe (11) to decrease a difference between the output signal (S1) and the reference value.