Method for controlling the advance angle of a power engine

Details Method for controlling the advance angle of a power engine Method for controlling the advance angle of a power engine

1996-04-17

1998-02-10

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

F02P 500

Patent

active

057157928

ABSTRACT:
Provided is a method for controlling an advance angle of a power engine which can associate the rotational speed or be rotational period with the advance time period by using a single small look up table in a simple manner, and can be implemented by using a relatively small storage device. Because of provision of the steps of detecting a rotational period of a power engine as a binary number consisting of a first number of bits; extracting a second number of bits from the binary number, the second number being smaller than the first number; obtaining a rotational period parameter from the extracted bits or by convening the extracted bits by an arithmetic process based on the first number, the second number, and a minimum value of the rotational period of the engine; and determining an advance angle for each given rotational speed of the engine by looking up a table specifying a relationship between the rotational period parameter and the advance angle.

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patent: 5176117 (1993-01-01), Motose et al.
patent: 5184594 (1993-02-01), Saitoh et al.
patent: 5297048 (1994-03-01), Gauer
patent: 5383433 (1995-01-01), Fiorenza, II

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