Controller device for electrically heated catalyst of automotive

Details Controller device for electrically heated catalyst of automotive Controller device for electrically heated catalyst of automotive

1993-06-03

1995-02-14

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60300, 219202, F01N 328

Patent

active

053884043

ABSTRACT:
A control device for controlling current supply to a resistance heater 2a for pre-heating an electrically heated catalyst 2 includes a controller 7 which begins to supply current to the resistance heater 2a when the ignition switch 8 is turned to the HEAT contact position, provided that the battery voltage is above an appropriate level. After the electrically heated catalyst 2 is thus pre-heated above a predetermined temperature, the controller 7 returns the ignition switch 8 either to the START contact to crank the engine or to the ON contact to wait for the driver to start the engine.

REFERENCES:
patent: 5163290 (1992-11-01), Kinnear
patent: 5224335 (1993-07-01), Yoshizaki
patent: 5319929 (1994-06-01), Cornelison
patent: 5321231 (1994-06-01), Schmalzriedt

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