Control of an internal combustion engine with an exhaust gas reintroduction system, where the quantity of exhaust gases reintroduced is controlled as a function of the crude exhaust gas emission

摘要

Control process for an internal combustion engine (100) containing a system for reintroducing exhaust gases, where the quantity of exhaust gases reintroduced is controlled (320) as a function of the crude emission of exhaust gases detected upstream and/or downstream of the device recovering exhaust gas energy (140) and/or other components of the exhaust gases. An Independent claim is also included for a device for carrying out the above process, with first detectors upstream and/or downstream of a device recovering energy from the exhaust gases. Second detectors are installed upstream and/or downstream of the exhaust gas reintroduction system to detect other exhaust gas components. Third detectors measure the crude emission of the exhaust gases downstream of the exhaust gas treatment system. There are also means of comparing these measured amounts with preset amounts and means of control and/or regulation to modify the amount of exhaust gas reintroduced as a function of these comparisons. Fourth detectors measure the crude emission of the exhaust gases upstream of the exhaust gas treatment system, these results are compared with those from the third detectors to give a measurement of the efficacy of the treatment system. A bypass is placed in parallel with the exhaust gas treatment system or an air intake throttle valve to the engine. The means of regulation and/or control regulate and/or control the marginal limit of the first detector.