Title:
JET PROPULSION WATERCRAFT AND METHOD FOR CONTROLLING THE SAME
Document Type and Number:
Japanese Patent JP2016169691
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a jet propulsion watercraft capable of stably keeping acceleration performance at cruise control.SOLUTION: A jet propulsion watercraft includes a hull, an engine, a jet propulsion unit, a weight information acquiring section, an engine control section, and a target rotation speed determination section. The engine is stored in the hull. The jet propulsion unit is driven by the engine, and propels the hull. The weight information acquiring section acquires weight information concerned with the weight of the hull. The engine control section controls engine rotation speed so that vessel speed reaches prescribed set speed. The target rotation speed determination section determines target engine rotation speed corresponding to the set speed in accordance with the weight information. The engine control section controls the engine rotation speed so that the vessel speed reaches the set speed based on the target engine rotation speed determined in correspondence with the weight information.SELECTED DRAWING: Figure 9
Inventors:
OKAMOTO TOSHIYUKI
IKETANI WATARU
IKETANI WATARU
Application Number:
JP2015050925A
Publication Date:
September 23, 2016
Filing Date:
March 13, 2015
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F02D29/02; B63H11/08; B63H21/21; B63H25/46
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation
Yukio Ono
Yamashita
Matsuyama practice
Yukio Ono
Yamashita
Matsuyama practice