Method for controlling changing-over of rotational direction of

Details Method for controlling changing-over of rotational direction of Method for controlling changing-over of rotational direction of

1998-09-15

2000-08-08

Kamen, Noah P.

Internal-combustion engines

Cooling

With jacketed head and/or cylinder

F01L 1302

Patent

active

060985747

ABSTRACT:
A rotational direction change-over control method capable of reversing a rotational direction of an internal combustion engine without discharging unburnt gas. When a reverse command is generated, feed of fuel to the engine is interrupted to reduce a rotational speed of the engine to a set level. An ignition position of the engine is advanced to an excessively advanced position during a reduction in rotational speed to the set level. When the rotational speed is reduced to the set level, feed of fuel is restarted to reverse a rotational speed of the engine. When judgment that the rotational speed is successfully reversed is made, the ignition position is transferred to a position near a top dead center, to thereby maintain rotation of the engine in a direction reversed.

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