Ignition timing control for internal combustion engine

Details Ignition timing control for internal combustion engine Ignition timing control for internal combustion engine

2007-05-29

2007-05-29

Argenbright, T. M. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C701S111000

Reexamination Certificate

active

11057221

ABSTRACT:
An internal combustion engine (1) causes an air/fuel mixture in a cylinder to combust due to ignition by a spark plug (14). The engine controller (50) calculates a crank angle at knock on the basis of an operating state of the engine (1) (53–54), calculates a knock intensity on the basis of this crank angle at knock (54), calculates a limit ignition timing at which knock is not generated, on the basis of the knock intensity (54), and controls the ignition timing of the spark plug (14) to the limit ignition timing at which knock is not generated (55). Therefore, suitable control of the ignition timing is achieved, by means of a small number of adaptation steps.

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