Catalytic converter heating

Details Catalytic converter heating Catalytic converter heating

1994-06-27

1995-08-29

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60284, 60286, 60303, F01N 320

Patent

active

054449766

ABSTRACT:
Electrically heated catalytic converter power control to minimize automotive vehicle electrical system burden monitors the performance of an electrical heater in elevating catalytic converter temperature and periodically adjusts the electrical power applied to the heater to the minimum necessary to provide for heating performance within specification, so as to elevate the catalytic converter to light-off within a specified period of time following an engine coldstart.

REFERENCES:
patent: 172779 (1993-12-01), Ament
patent: 3392522 (1968-07-01), Haas
patent: 4383411 (1983-05-01), Riddel
patent: 4677823 (1987-07-01), Hardy
patent: 4840028 (1989-06-01), Kusada
patent: 5193340 (1993-03-01), Kamihara
patent: 5277025 (1994-01-01), Gonze
patent: 5320523 (1994-06-01), Stark
patent: 5390488 (1995-02-01), Ament

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