Engine control device

Internal-combustion engines – Engine speed regulator – Idle speed control

Reexamination Certificate

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Details

C123S352000, C123S406470, C123S406540, C123S491000

Reexamination Certificate

active

11082792

ABSTRACT:
An engine control device can be capable of suppressing a rise in engine speed at starting. The engine speed can be detected by a speed sensor and a determination can be made whether the engine speed has changed from a starting mode to a normal mode. If the engine speed has changed from a starting mode to a normal mode, the difference between the engine speed and a predetermined target engine speed is calculated, and the ignition timing is controlled based on the calculated difference. The control of ignition timing can be performed when the detected value of the rotational sensor is larger than the target engine speed.

REFERENCES:
patent: 4777924 (1988-10-01), Fujimura et al.
patent: 5280772 (1994-01-01), Weber et al.
patent: 5701871 (1997-12-01), Munakata et al.
patent: 5727522 (1998-03-01), Otani et al.
patent: 6474307 (2002-11-01), Ohuchi et al.
patent: 6520147 (2003-02-01), Kanno
patent: 2004-137920 (2004-05-01), None

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