| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an operation method for a marine propulsion system, the method enabling securing of turning characteristics of a marine craft with simple control in a case where a failure in steering angle control occurs to a part of outboard engines.SOLUTION: Plural outboard engines are respectively provided with plural steering mechanisms, each of which includes: a hydraulic pump; an electric motor for driving the hydraulic pump; a hydraulic cylinder having two cylinder chambers compartmentalized by a piston; and a normal-close bypass valve for communicating two cylinder chambers of the hydraulic cylinder. In the case of determining that a failure has occurred to steering angle control of a part of the outboard engines, a main ECU 10 displays on a display device 9 an operation guiding screen for urging a craft operator to open the bypass valve of a steering mechanism corresponding to the failed outboard engine, and maintains power transmission between an engine and propeller of the failed outboard engine to be shut off.</p> |
