Safe control system and method for high-horsepower double-electric outboard engine boat

By transmitting control signals in parallel through dual CAN networks and switching between them in case of failure, the problem of unstable boat control caused by CAN network failure is solved, the redundancy design of the safety control system is realized, and the safety and stability of the boat are improved.

CN121650853APending Publication Date: 2026-03-13SHANGHAI QINGBO POWER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Under the current dual-carbon background, in the field of water transportation electrification, the network quality of CAN network affects the integrity of control signals, leading to safety issues in vessel operation.

Method used

The control subsystem employs a dual CAN network to transmit control signals in parallel, and prioritizes one CAN network through the ship's controller. When the controller fails, it switches to the other CAN network for outboard motor control, thus achieving a redundant design for the control subsystem.

Benefits of technology

In the event of a CAN network communication failure, the system ensures the vessel continues to navigate safely, enhancing the safety and stability of the vessel's systems and providing greater safety assurance for maritime travel.

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Abstract

The invention relates to the technical field of control systems, and particularly discloses a safety control system for a high-horsepower double-electric outboard engine boat, which comprises a battery subsystem, an outboard engine subsystem, a whole boat controller, a control subsystem and a communication subsystem, the communication subsystem comprises a first CAN network and a second CAN network. The first CAN network and the second CAN network transmit control signals of the control subsystem to the whole ship controller in parallel and transmit the control signals to the battery subsystem and the outboard engine subsystem in parallel. According to the invention, redundancy design is carried out on the network interface of the control subsystem, function backup is carried out on the control subsystem, and after the communication fault of the first CAN network occurs, the ship can continue to run safely, so that the serious system problem that the ship loses outboard engine control due to the communication fault of the first CAN network is solved, the safety of the ship system is effectively improved, and the safety of the ship system is improved. And more safety guarantee is provided for offshore travel.
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Description

Technical Field

[0001] This patent relates to the technical field of control systems and control methods, specifically to a safety control system and a safety control method for a high-horsepower dual-electric outboard motor boat. Background Technology

[0002] Against the backdrop of "dual carbon" (carbon dioxide, carbon emissions, and carbon sequestration), emission reduction in transportation is the most prominent. New energy technologies, with power batteries and motors at their core, have already achieved significant success in the field of road transportation. Currently, the electrification of water transportation, primarily inland waterways and coastal vessels, is in the early stages of technological development and has broad market prospects for industrialization.

[0003] Twin-powered boats typically use high-end outboard motors as their power components. These high-end outboard motors usually employ electronic control technology. In the electronic control system, the control system transmits control signals to the boat's controller via a CAN network to control the outboard motors. The quality of this CAN network can affect the integrity of the control signals, thereby impacting the boat's navigation safety.

[0004] Based on the above shortcomings, improvements are necessary. Summary of the Invention

[0005] To ensure the safety of personnel and property, higher requirements have been placed on maritime travel safety. This invention discloses a safety control system for a high-horsepower dual-electric outboard motor boat, including a battery subsystem, an outboard motor subsystem, a boat controller, a control subsystem, and a communication subsystem. The battery subsystem includes a first power battery and a second power battery, and the outboard motor subsystem includes a first outboard motor and a second outboard motor. The first power battery and the first outboard motor form a first powertrain, and the second power battery and the second outboard motor form a second powertrain. The first powertrain and the second powertrain are connected in parallel to the boat controller. The communication subsystem includes a first CAN network and a second CAN network. The first CAN network and the second CAN network transmit the control signals of the control subsystem in parallel to the boat controller, and also transmit the control signals in parallel to the first powertrain and the second powertrain.

[0006] As a preferred alternative, the control subsystem includes a mechanical controller, which includes a steering wheel and a mechanical handle; or, the mechanical controller includes a steering wheel and a push rod.

[0007] As a preferred alternative, the control subsystem further includes a touch screen display, which includes gear control, speed control, and steering control; the steering control includes left turn control, right turn control, and centering control; the gear control includes forward gear, neutral gear, and reverse gear; and the speed control includes acceleration control, deceleration control, and speed maintenance.

[0008] As a preferred alternative, the touch screen includes a virtual control switch. When the virtual control switch is turned on, the ship controller receives control signals from the touch screen. When the virtual control switch is turned off, the touch screen is only used to display the ship's sailing attitude and the working status of the outboard motors.

[0009] The present invention also discloses a safe control method for a high-horsepower dual-electric outboard motor boat, wherein the boat controller preferentially uses the control signal of the first CAN network, and when the first CAN network signal is missing, the boat controller uses the control signal of the second CAN network.

[0010] As a preferred alternative, the ship controller identifies the operating status of the control subsystem.

[0011] As a preferred alternative, the ship controller identifies the operating status of the first powertrain and the second powertrain, and the control subsystem also includes a power switching switch, which can be used to switch between single-engine sailing mode and dual-engine sailing mode.

[0012] As a preferred alternative, the power switching switch is located on the touch screen; or, the power switching switch is a mechanical button.

[0013] The advantages of this invention compared to existing technologies are: redundant design of the network interface of the control subsystem and functional backup of the control subsystem allow the vessel to continue to sail safely after a communication failure in the first CAN network. This solves the serious system problem of the vessel losing control of the outboard motor due to a communication failure in the first CAN network, effectively improving the safety of the vessel system and providing more safety guarantees for maritime travel. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall architecture of the safety control system according to an embodiment of the invention.

[0015] In the diagram: 10 - Ship controller; 20 - Battery subsystem; 30 - Outboard motor subsystem; 40 - Control subsystem; 51 - First CAN network; 52 - Second CAN network. Detailed Implementation

[0016] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0019] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] See the example. Figure 1 The diagram shows a safety control system for a high-horsepower dual-electric outboard motor boat, comprising a battery subsystem 20, an outboard motor subsystem 30, a boat controller 10, a control subsystem 40, and a communication subsystem. The battery subsystem 20 includes a first power battery and a second power battery, and the outboard motor subsystem 30 includes a first outboard motor and a second outboard motor. The first power battery and the first outboard motor form a first powertrain, and the second power battery and the second outboard motor form a second powertrain. The first powertrain and the second powertrain are connected in parallel to the boat controller 10. The communication subsystem includes a first CAN network 51 and a second CAN network 52. The first CAN network 51 and the second CAN network 52 transmit control signals from the control subsystem 40 to the boat controller 10 in parallel, and also transmit control signals to the first powertrain and the second powertrain in parallel.

[0021] The control subsystem 40 includes a mechanical controller, which includes a steering wheel and a mechanical handle; or, the mechanical controller includes a steering wheel and a push rod.

[0022] The control subsystem 40 also includes a touch screen display, which includes gear control, speed control, and steering control; the steering control includes left turn control, right turn control, and centering control; the gear control includes forward gear, neutral gear, and reverse gear; and the speed control includes acceleration control, deceleration control, and speed hold.

[0023] The touch screen includes a virtual control switch. When the virtual control switch is turned on, the ship controller 10 receives control signals from the touch screen. When the virtual control switch is turned off, the touch screen is only used to display the ship's sailing attitude and the working status of the outboard motor.

[0024] The present invention also discloses a safe control method for a high-horsepower dual electric outboard motor boat, wherein the boat controller 10 preferentially uses the control signal of the first CAN network 51, and when the signal of the first CAN network 51 is missing, the boat controller 10 uses the control signal of the second CAN network 52.

[0025] The ship controller 10 identifies the operating status of the control subsystem 40.

[0026] The ship controller 10 identifies the operating status of the first power assembly and the second power assembly. The control subsystem 40 also includes a power switching switch, which can be used to switch between single-engine sailing mode and dual-engine sailing mode.

[0027] The power switching switch is located on the touch screen; alternatively, the power switching switch is a mechanical button.

[0028] Normally, the ship controller 10 prioritizes using the control signals of the control subsystem 40 of the first CAN network 51 for outboard motor control.

[0029] When a serious communication failure occurs in the first CAN network 51, causing the control signal of the control subsystem 40 on the first CAN network 51 to be unable to be transmitted to the ship controller 10, the ship controller 10 switches to using the control signal of the control subsystem 40 on the second CAN network 52 to control the outboard motor.

[0030] If the communication failure of the first CAN network 51 is resolved, in order to maintain the stability and continuity of the vessel's handling, the whole ship controller 10 continues to use the control signals of the control subsystem 40 of the second CAN network 52 to control the outboard motor.

[0031] If a serious communication failure occurs in the second CAN network 52 after the communication failure of the first CAN network 51 is resolved, the ship controller 10 will switch back to using the control signals of the control subsystem 40 of the first CAN network 51 for outboard motor control.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A safety control system for a high-horsepower dual-electric outboard motor boat, characterized in that: The system includes a battery subsystem, an outboard motor subsystem, a ship controller, a control subsystem, and a communication subsystem. The battery subsystem includes a first power battery and a second power battery. The outboard motor subsystem includes a first outboard motor and a second outboard motor. The first power battery and the first outboard motor form a first powertrain, and the second power battery and the second outboard motor form a second powertrain. The first powertrain and the second powertrain are connected in parallel to the ship controller. The communication subsystem includes a first CAN network and a second CAN network. The first CAN network and the second CAN network transmit the control signals of the control subsystem in parallel to the ship controller, and also transmit the control signals in parallel to the first powertrain and the second powertrain.

2. The safety control system as described in claim 1, characterized in that: The control subsystem includes a mechanical controller, which includes a steering wheel and a mechanical handle; or, the mechanical controller includes a steering wheel and a push rod.

3. The safety control system as described in claim 1, characterized in that: The control subsystem also includes a touch screen display, which includes gear control, speed control, and steering control; the steering control includes left turn control, right turn control, and centering control; the gear control includes forward gear, neutral gear, and reverse gear; and the speed control includes acceleration control, deceleration control, and speed maintenance.

4. The safety control system as described in claim 3, characterized in that: The touch screen includes a virtual control switch. When the virtual control switch is turned on, the ship controller receives control signals from the touch screen. When the virtual control switch is turned off, the touch screen is only used to display the ship's sailing attitude and the working status of the outboard motors.

5. A safe operating method for a high-horsepower dual-electric outboard motor boat, employing an intelligent control system as described in any one of claims 1 to 4, characterized in that: The ship controller preferentially uses the control signals of the first CAN network. When the first CAN network signal is missing, the ship controller uses the control signals of the second CAN network.

6. The safe operation method as described in claim 5, characterized in that: The ship controller identifies the operating status of the control subsystem.

7. The safe operation method as described in claim 5, characterized in that: The ship controller identifies the operating status of the first powertrain and the second powertrain. The control subsystem also includes a power switching switch, which can be used to switch between single-engine sailing mode and dual-engine sailing mode.

8. The safe operation method as described in claim 7, characterized in that: The power switching switch is located on the touch screen; or, the power switching switch is a mechanical button.