Controller for an internal combustion engine

Details Controller for an internal combustion engine Controller for an internal combustion engine

2006-09-12

2006-09-12

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S277000, C060S295000, C060S300000

Reexamination Certificate

active

07104046

ABSTRACT:
A controller executes temperature rise control on a catalyst device by retarding ignition timing that is set based on engine operating conditions. The controller reaches a diagnosis that the temperature rise control is normal if an advance angle side accumulated time for which the ignition timing is set exceeding a threshold value to an advance angle side during execution of the temperature rise control is less than an accumulated time determination value. When the advance angle side accumulated time is greater than or equal to the accumulated time determination value, the controller reaches a diagnosis that the temperature rise control has an anomaly.

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