The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 06, 2005

Filed:

Jan. 22, 2003
Applicants:

Scott A. Koerner, Kenosha, WI (US);

Thomas A. Busse, Briston, WI (US);

Douglas M. Goebel, Big Bend, WI (US);

Inventors:

Scott A. Koerner, Kenosha, WI (US);

Thomas A. Busse, Briston, WI (US);

Douglas M. Goebel, Big Bend, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K041/04 ; B60K041/00 ; F02P009/00 ; F02D007/00 ;
U.S. Cl.
CPC ...
Abstract

A shift enabling interrupt system that facilitates the shifting of gears of an outboard engine is disclosed. The system is activated by the signal from a sensor that determines if the user is attempting to shift the gears by detecting a lost motion in a shift linkage manually activated by the user to shift the gear train of the engine. Upon such activation, the system ECU carries out a set of steps that periodically reduce the speed of the engine by disabling one or more cylinders to facilitate the gear shift. After a predetermined number of revolutions, the disabled cylinders are again enabled to return the engine speed back to normal operation. A timer establishes a maximum elapsed time to complete the shifting operation and the gear shifting itself is only permitted if the RPM of the engine is less that a predetermined value.


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