EXHAUST POLLUTION CONTROL CIRCUIT, POLLUTION CONTROL SYSTEM COMPRISING THIS CIRCUIT, AND POLLUTION CONTROL METHOD USING THIS CIRCUIT

摘要

The invention relates to an exhaust pollution control circuit (1) for a vehicle with a heat engine (2), comprising a filtering device (4), a turbocharger comprising a compressor unit (5) and a turbine unit (7) comprising a turbine (7a), an engine unit (6) and a catalytic treatment unit (8) with a catalyst (10) and an electric heating device (9). The pollution control circuit (11) comprises a bypass branch (11) comprising an electric air pump (14) configured to draw air from the filtering device (4) and blow it into the catalytic treatment unit (8), in particular before starting the engine (2). The electrical components are controlled by a control unit (19). The invention also relates to a pollution control system comprising this circuit, and a pollution control method using this circuit.