公开(公告)号：US20230383679A1

公开(公告)日：2023-11-30

申请号：US17824035

申请日：2022-05-25

申请人： Jeff Brand ,  Ryan M Sturgeon ,  Brett Schubring ,  Timothy Coatesworth ,  Gregory P Beverly ,  Kevin Macduff

发明人： Jeff Brand ,  Ryan M Sturgeon ,  Brett Schubring ,  Timothy Coatesworth ,  Gregory P Beverly ,  Kevin Macduff

IPC分类号： F01N3/20 ,  H01L35/32

CPC分类号： F01N3/2013 ,  H01L35/32 ,  F01N2240/16 ,  F01N2900/0601 ,  F01N2900/0602 ,  F01N2900/1404

摘要： Temperature estimation systems and methods for a powertrain of a vehicle, the powertrain comprising an electrically heated catalyst, utilize an electrical heater disposed proximate to the electrically heated catalyst, the electrical heater comprising a heating element and a controller configured to monitor a voltage of the electrical heater and estimate a temperature of the heating element of the electrical heater based on the monitored voltage of the electrical heater and a set of known thermoelectric effects. The estimated temperature could be utilized, for example, to estimate an exhaust gas temperature, which could then be leveraged for control of operating parameter(s) by the controller, such as engine fuel/air ratio.

公开(公告)号：US20220235725A1

公开(公告)日：2022-07-28

申请号：US17158258

申请日：2021-01-26

申请人： Jeff Brand ,  Ryan M. Sturgeon ,  Brett Schubring ,  Jeffrey P. Wuttke

发明人： Jeff Brand ,  Ryan M. Sturgeon ,  Brett Schubring ,  Jeffrey P. Wuttke

IPC分类号： F02F1/42 ,  F02F1/40 ,  F01N3/20 ,  F02F1/24 ,  F01N3/28

摘要： A cylinder head assembly for an internal combustion engine is provided. In one example implementation, the cylinder head assembly includes a cylinder head, a bypass passage formed within the cylinder head and defining a catalyst cavity, and a bypass catalytic converter disposed within the catalyst cavity, where the bypass catalytic converter is configured to provide emissions reduction during cold start, long idle, and/or low main catalytic converter temperature conditions.