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US 12,545,389 B2Granted
Electric powered outboard motor
AssigneeHonda Motor Co., Ltd.
InventorTomoaki Yageta
Life of this patent
Estimating the term…
Abstract
An electric outboard motor 1 includes an operating part 33 that is switchable between forward and reverse rotation positions; a control device 35 configured to switch, based on the position of the operating part, a drive state of an electric motor 8 between forward, reverse, and neutral states. When the position of the operating part is switched from the forward rotation position to the reverse rotation position (ST1 Yes) while a watercraft is moving (ST2: Yes), the control device causes the drive state to transition from the forward rotation state to the reverse rotation state (ST3) such that, before completion of the transition, the drive state is held to be the neutral state for a predetermined time period (ST4).
Claims14
An electric outboard motor for a watercraft comprising:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor;
- a control device configured to, according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven,
- wherein the control device is configured to set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position, and set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- wherein, when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, the control device sets the drive state to be the neutral state for a predetermined time period, and subsequently, sets the drive state to be the reverse rotation state.
4 more elements
An electric outboard motor for a watercraft comprising:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor;
- a control device configured to, according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven;
- a watercraft speed acquiring device for acquiring a speed of watercraft;
- and
- a torque sensor for acquiring a torque applied to the power transmission mechanism,
- wherein the control device is configured to set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position, and set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- wherein, when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, the control device switches the drive state from the neutral state to the reverse rotation state after the torque becomes equal to or less than a predetermined torque and the speed of the watercraft becomes equal to or less than a predetermined speed.
7 more elements
A method for controlling a drive state of an electric motor in an electric outboard motor for a watercraft by a processor,
- wherein the electric outboard motor comprises:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- and
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor,
- wherein the method comprises
- the processor performing processing operations to:
- according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven;
- set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position;
- set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, set the drive state to be the neutral state for a predetermined time period, and subsequently, sets the drive state to be the reverse rotation state.
9 more elements
A non-transitory computer-readable storage medium storing a program which causes a processor to control a drive state of an electric motor in an electric outboard motor for a watercraft,
- wherein the electric outboard motor comprises:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- and
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor
- wherein the program causes the processor to perform processing operations to:
- according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven;
- set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position;
- set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, set the drive state to be the neutral state for a predetermined time period, and subsequently, set the drive state to be the reverse rotation state.
8 more elements
A method for controlling a drive state of an electric motor in an electric outboard motor for a watercraft by a processor,
- wherein the electric outboard motor comprises:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor;
- a watercraft speed acquiring device for acquiring a speed of watercraft;
- and
- a torque sensor for acquiring a torque applied to the power transmission mechanism,
- wherein the method comprises
- the processor performing processing operations to:
- according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven;
- set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position;
- set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, switch the drive state from the neutral state to the reverse rotation state after the torque becomes equal to or less than a predetermined torque and the speed of the watercraft becomes equal to or less than a predetermined speed.
11 more elements
A non-transitory computer-readable storage medium storing a program which causes a processor to control a drive state of an electric motor in an electric outboard motor for a watercraft,
- wherein the electric outboard motor comprises:
- an electric motor;
- a propeller coupled to the electric motor via a power transmission mechanism;
- an operating part configured to be operated by a user and having an operation position switchable between a forward rotation operation position for instructing forward rotation of the electric motor and a reverse rotation operation position for instructing reverse rotation of the electric motor;
- a watercraft speed acquiring device for acquiring a speed of watercraft;
- and
- a torque sensor for acquiring a torque applied to the power transmission mechanism,
- wherein the program causes the processor to perform processing operations to:
- according to the operation position of the operating part, switch a drive state of the electric motor between a forward rotation state in which the electric motor rotates in a forward rotation direction, a reverse rotation state in which the electric motor rotates in a reverse rotation direction, and a neutral state in which the electric motor is not driven;
- set the drive state to be the forward rotation state when the operation position of the operating part is at the forward rotation operation position;
- set the drive state to be the reverse rotation state when the operation position of the operating part is at the reverse rotation operation position;
- and
- when the operation position of the operating part is switched from the forward rotation operation position to the reverse rotation operation position while the watercraft is moving, switch the drive state from the neutral state to the reverse rotation state after the torque becomes equal to or less than a predetermined torque and the speed of the watercraft becomes equal to or less than a predetermined speed.
10 more elements
Dependencies are inferred from the claim text.