A catalyst preheat control unit 29 for a vehicle (1, Fig. 1) having an internal combustion engine 2, an exhaust conduit 3, a first catalyst 21 disposed in exhaust conduit 3 for treating exhaust gas, an electric heating element 20 disposed in exhaust conduit 3 upstream of first catalyst 21, and pumping means for pumping air past said electric heating element 20. The catalyst preheat control unit 29 includes at least one processor 30 configured to control said electric heating element 20 to preheat the first catalyst 21 and a memory device having instructions stored therein and coupled to the processor 30 which is configured to determine a temperature of the first catalyst 21 and to output an engine start request signal S2 when the determined temperature of the first catalyst 21 is greater than or equal to a predetermined temperature. The present disclosure also relates to a method of controlling preheating of a first catalyst and to a vehicle having a catalyst preheat control unit.
Catalyst preheat control apparatus and method
2020-09-02
Patent
Electronic Resource
English
IPC: | F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein |
European Patent Office | 2019
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