Internal-combustion engines – Engine speed regulator – Idle speed control
Reexamination Certificate
2007-09-25
2007-09-25
Argenbright, T. M. (Department: 3747)
Internal-combustion engines
Engine speed regulator
Idle speed control
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.
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patent: 2004-137920 (2004-05-01), None
Argenbright T. M.
Knobbe Martens Olson & Bear LLP
Yamaha Marine Kabushiki Kaisha
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