Steering method and steering system for boat
First Claim
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1. A method for steering a boat with a marine propulsion unit at the stern, in which a reaction torque is applied to a steering wheel in response to external force to the boat, the method comprising:
- detecting a steering angle and the behavior of the boat;
determining whether or not the turning of the steering wheel is in an initial phase based on the detected steering angle and the behavior of the boat; and
applying the reaction torque to the steering wheel in response to the determination;
wherein determining whether or not the turning of the steering wheel is in an initial phase comprises determining if the lateral acceleration of the boat is negative.
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Abstract
A steering method for a boat with a marine propulsion unit at the stern is provided in which a reaction torque is applied to a steering wheel in response to external force to the boat. The steering method includes: detecting a steering angle and the behavior of the boat; determining whether or not the turning of the steering wheel is in an initial phase based on the detected steering angle and the behavior of the boat; and applying the reaction torque to the steering wheel in response to the determination.
74 Citations
10 Claims
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1. A method for steering a boat with a marine propulsion unit at the stern, in which a reaction torque is applied to a steering wheel in response to external force to the boat, the method comprising:
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detecting a steering angle and the behavior of the boat; determining whether or not the turning of the steering wheel is in an initial phase based on the detected steering angle and the behavior of the boat; and applying the reaction torque to the steering wheel in response to the determination; wherein determining whether or not the turning of the steering wheel is in an initial phase comprises determining if the lateral acceleration of the boat is negative. - View Dependent Claims (2, 3, 5, 6, 9)
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4. A steering system for a boat, comprising:
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a marine propulsion unit mounted to the stern through a steering device; a reaction motor configured to apply a reaction torque to a steering wheel of the boat in response to external force to the boat; a steering angle sensor; a boat behavior detection device; and a controller configured to determine the reaction torque, the controller also being configured to determine whether or not the turning of the steering wheel is in an initial phase based on a steering angle and the behavior of the boat, and to determine the reaction torque based on the whether or not the steering wheel is in an initial phase; wherein the boat behavior detection device is configured to detect a lateral acceleration of the boat, and wherein the controller is configured to determine that the turning of the steering wheel is in an initial phase if the lateral acceleration of the boat is negative. - View Dependent Claims (10)
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7. A steering system for a boat, comprising:
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a marine propulsion unit mounted to the stern through a steering device; a reaction motor configured to apply a reaction torque to a steering wheel of the boat in response to external force to the boat; a steering angle sensor; and means for determining the reaction torque based on whether or not the turning of the steering wheel is in an initial phase based on a steering angle and a behavior of the boat; wherein the means for determining includes means for determining that the turning of the steering wheel is in the initial phase if the lateral acceleration is negative. - View Dependent Claims (8)
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Specification