Display device and ship

Abstract

To provide a technology for easily having a crew member grasp an operation state of a hybrid system in a vessel including the hybrid system.SOLUTION: An exemplary display system for displaying an operation state of a hybrid system for driving a propeller for propelling a vessel includes on a display screen for displaying the operation state: a symbol for expressing composition elements composing the hybrid system; and a linear unit for connecting between the plurality of symbols and varying a lit state according to an operation mode of the hybrid system.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a display device for a ship.

Background Art

[0002] Conventionally, a marine hybrid system equipped with a motor in addition to an engine as a power source for a ship is known (see, for example, Patent Document 1). The operating states of the marine hybrid system include, for example, a state in which a propulsion device of the ship is driven by one or both of the engine and the motor, a state in which the motor is generated by the engine, a state in which the kinetic energy of the ship is regenerated by the motor, and the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a ship equipped with a hybrid system, it is not easy to grasp the operating state because the energy flow varies depending on the operating state of the hybrid system.

[0005] An object of the present invention is to provide a technique that allows a crew member to easily grasp the operating state of a hybrid system in a ship equipped with the hybrid system.

Means for Solving the Problems

[0006] An exemplary display device of the present invention is a display device that displays the operating state of a hybrid system that drives a propulsion machine for propelling a ship. On a display screen that displays the operating state, there are symbols representing components that make up the hybrid system, and linear portions that connect between a plurality of the symbols and change a lighting state according to the operating mode of the hybrid system.

Advantages of the Invention

[0007] According to the exemplary display device of the present invention, in a ship equipped with a hybrid system, the crew can easily grasp the operating state of the hybrid system.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

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Figure 4

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8A

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Figure 9A

Figure 9B

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Figure 15

Embodiments for Carrying Out the Invention

[0009] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

[0010] <1. Overview of the Hybrid System> FIG. 1 is a schematic diagram showing the configuration of a marine hybrid system 100 according to an embodiment of the present invention. The hybrid system 100 is provided on a ship. The hybrid system 100 drives a propulsion unit 101 that propels the ship. In the present embodiment, the propulsion unit 101 is a propeller. The hybrid system 100 includes an engine 102, a motor 103, and a power transmission device 104. The engine 102 and the motor 103 are drive sources for rotating the propulsion unit 101.

[0011] The engine 102 is a known diesel engine for ships. In the hybrid system 100, the engine 102 functions as the main engine. The engine 102 includes a crankshaft 102a that performs a rotational motion in response to the reciprocating motion of a piston (not shown). The crankshaft 102a is the output shaft of the engine 102.

[0012] The motor 103 is connected to the battery 105. By supplying the electric power stored in the battery 105 to the motor 103, the motor output shaft 103a, which is the output of the motor 103, can be rotationally driven. Also, by rotating the motor output shaft 103a by an external force, the motor 103 can function as a generator to charge the battery 105.

[0013] The power transmission device 104 includes a power transmission shaft and a clutch (not shown). By switching the clutch in the power transmission device 104, it is possible to switch to multiple types of power transmission states. In this embodiment, by switching the clutch of the power transmission device 104, it is possible to switch to a state where only the driving force of the engine 102 is transmitted to the propeller 101, a state where only the driving force of the motor 103 is transmitted to the propeller 101, and a state where the driving forces of the engine 102 and the motor 103 are combined and transmitted to the propeller 101. Also, the power transmission device 104 can obtain a state where the power of the engine 102 is transmitted to the motor output shaft 103a by switching the clutch.

[0014] Figure 2 is a block diagram showing the electrical configuration of the hybrid system 100 for ships according to an embodiment of the present invention. As shown in Figure 2, the hybrid system 100 includes an engine ECU (Electronic Control Unit) 111, a drive ECU 112, a helm ECU 113, an inverter 114, a BMS (Battery Management System) 115, a hybrid ECU 116, and a display device 1. These respective parts 111 to 116, 1 are connected to a communication bus 117. The communication bus 117 is, for example, a CAN (Controller Area Network) bus.

[0015] The engine ECU 111 controls the engine 102. The drive ECU 112 controls the power transmission device 104. The helm ECU 113 manages the user's boating information such as the shift lever and throttle lever. The inverter 114 is an inverter for driving control of the motor 103. The BMS 115 manages the battery 105. The BMS 115 performs, for example, monitoring of the current, voltage, and temperature of the battery 105 and grasping of the state of charge (SOC). The hybrid ECU 116 controls the motor 103 via the inverter 114. The hybrid ECU 116 performs control related to switching of the operation mode of the hybrid system 100 in cooperation with, for example, the engine ECU 111 and the drive ECU 112. As will be described later, the hybrid system 100 of the present embodiment has a plurality of operation modes.

[0016] The display device 1 displays the operation state of the hybrid system 100. Specifically, the display device 1 receives information from each part 111 to 116 by CAN communication using the CAN bus 117 and displays the operation state of the hybrid system 100. In addition, the display device 1 enables the user to perform an operation for switching the operation mode.

[0017] <2. Display Device> (2-1. Outline of Display Device) FIG. 3 is a front view showing the configuration of the display device 1 according to an embodiment of the present invention. As shown in FIG. 3, the display device 1 includes a display panel 1a and a bezel 1b that covers the outer periphery of the display panel 1a from the front side. The display panel 1a is configured using, for example, a liquid crystal panel or an organic EL panel. The bezel 1b is frame-shaped in a plan view from the front. In a plan view from the front of the display device 1, the inside of the bezel 1b is a screen area 10 where an image is displayed.

[0018] In this embodiment, the display device 1 is rectangular in a plan view from the front. The bezel 1b is rectangular frame-shaped in a plan view from the front. The screen area 10 is rectangular. Note that these shapes may be changed as appropriate. For example, the screen area 10 may be circular, elliptical, or the like. Also, the shape of the bezel does not have to be frame-shaped. For example, the bezel may be configured to be disposed only on the left and right of the display panel 1a in a plan view from the front of the display device 1.

[0019] A plurality of mode switching buttons 4 for performing a switching operation of the operation mode are disposed around the screen area 10 of the display device 1. Specifically, the mode switching buttons 4 are exposed to the front side through openings provided in the bezel 1b. One mode switching button 4 is provided corresponding to each operation mode. Note that the switching of the operation mode may be configured to be performed using a touch panel. In this case, the switching of the operation mode is performed by touching a predetermined position of the screen area 10.

[0020] A screen for displaying the operation state is displayed on the screen area 10. In this embodiment, there are a plurality of types of screens for displaying the operation state, and a plurality of types of screens for displaying the operation state are provided so as to be switchable. Specifically, the types of screens that the display device 1 can switch to include an aggregated screen that aggregates and displays the operation state, a data list screen that shows detailed information on the operation state, a warning list screen that displays the content of a warning occurring, and an abnormality list screen that displays the content of an abnormality occurring. Note that the screen shown in FIG. 3 is an aggregated screen.

[0021] That is, in this embodiment, the display device 1 is provided so as to be switchable to a screen showing an operation state different from the aggregated screen. For this reason, the crew of the ship can acquire a lot of information about the operation state of the hybrid system 100.

[0022] The display device 1 is provided with a screen switching button 5 that enables switching between the plurality of types of screens. The screen switching button 5 is arranged around the screen area 10, similar to the mode switching button 4. Note that the switching between the plurality of types of screens may be configured to be performed by using a touch panel. In this case, the screen is switched when a predetermined position of the screen area 10 is touched.

[0023] In addition, the display device 1 is also provided with a close button 6. The close button 6 is also arranged around the screen area 10, similar to the mode switching button 4 and the screen switching button 5. Details of the close button 6 will be described later.

[0024] (2-2. Aggregate Screen) FIG. 4 is a schematic diagram showing the configuration of an aggregate screen 20 that aggregates and displays the operating state. In the present embodiment, the aggregate screen 20 is a screen that displays important information for the crew of the ship and is the main screen that is mainly used during normal times. The aggregate screen 20 has a rectangular shape that is longer in the horizontal direction than in the vertical direction.

[0025] As shown in FIG. 4, on the display screen 20 for displaying the operating state (specifically, the aggregate screen 20), there are included symbols 21 representing the components constituting the hybrid system 100, and linear portions 22 that connect between the plurality of symbols 21 and change the lighting state according to the operating mode of the hybrid system 100. According to this configuration, the crew of the ship can easily grasp the current relationship among the plurality of components constituting the hybrid system 100 by looking at the aggregate screen 20. Note that in the present embodiment, the propulsion unit 101 is a component included in the hybrid system 100. Also, there are a plurality of linear portions 22.

[0026] In this embodiment, the plurality of symbols 21 include a symbol 21a representing the engine 102, a symbol 21b representing the motor 103, a symbol 21c representing the battery 105, and a symbol 21d representing the propulsion unit 101. According to this, by looking at the aggregation screen 20, it is possible to easily grasp what kind of relationship the main components constituting the hybrid system 100 currently have.

[0027] Note that hereinafter, the symbol 21a representing the engine 102 may be expressed as the engine symbol 21a, the symbol 21b representing the motor 103 may be expressed as the motor symbol 21b, the symbol 21c representing the battery 105 may be expressed as the battery symbol 21c, and the symbol 21d representing the propulsion unit 101 may be expressed as the propulsion unit symbol 21d, respectively.

[0028] Each of the symbols 21a to 21d may be, for example, a figure, a sign, a character, a character string, a symbol mark, or the like. In this embodiment, each of the symbols 21a to 21d is a figure combining a symbol mark that associates each component and a circle surrounding it. Specifically, the engine symbol 21a is a figure in which a symbol mark that associates the engine is surrounded by a circle. The motor symbol 21b is a figure in which a symbol mark that associates the motor is surrounded by a circle. The battery symbol 21c is a figure in which a symbol mark that associates the battery is surrounded by a circle. The propulsion unit symbol 21d is a figure in which a symbol mark that associates a propeller is surrounded by a circle.

[0029] In this embodiment, the four symbols 21a to 21d are respectively arranged at the top of the diamond shape and located at the central part of the aggregation screen 20. Specifically, the engine symbol 21a is arranged to the left of the central position of the aggregation screen 20. The motor symbol 21b is arranged above the central position of the aggregation screen 20. The battery symbol 21c is arranged to the right of the central position of the aggregation screen 20. The propulsion unit symbol 21d is arranged below the central position of the aggregation screen 20.

[0030] The linear part 22 connecting the 21 symbols may be composed of a straight line, a curve, or both a straight line and a curve. In the present embodiment, the linear part 22 is composed of a curve. Specifically, the plurality of linear parts 22 includes a first linear part 22a, a second linear part 22b, a third linear part 22c, and a fourth linear part 22d. The first linear part 22a connects the engine symbol 21a and the motor symbol 21b. The second linear part 22b connects the engine symbol 21a and the propulsion symbol 21d. The third linear part 22c connects the motor symbol 21b and the battery symbol 21c. The fourth linear part 22d connects the motor symbol 21b and the propulsion symbol 21d. The first linear part 22a and the second linear part 22b each constitute an arc portion of a single circle passing through the engine symbol 21a, the motor symbol 21b, and the propulsion symbol 21d. The third linear part 22c and the fourth linear part 22d each constitute an arc portion of a single circle passing through the motor symbol 21b, the battery symbol 21c, and the propulsion symbol 21d.

[0031] Details of the change in the lighting state according to the operation mode in the linear part 22 will be described later. In the present embodiment, the aggregated screen 20 includes two additional linear parts 23 that do not change the lighting state according to the operation mode of the hybrid system 100. The additional linear parts 23 include a first additional linear part 23a that connects the motor symbol 21b and the propulsion symbol 21d, and a second additional linear part 23b that connects the battery symbol 21c and the propulsion symbol 21d. The first additional linear part 23a constitutes an arc portion of the same circle as the first linear part 22a and the second linear part 22b. The second additional linear part 23b constitutes an arc portion of the same circle as the third linear part 22c and the fourth linear part 22d. The provision of the additional linear parts 23 improves the designability of the aggregated screen 20.

[0032] Note that at least one of the first additional linear part 23a and the second additional linear part 23b may not be provided. Also, for example, the first additional linear part 23a may be a linear part that changes the lighting state according to the operation mode of the hybrid system 100 instead of an additional linear part.

[0033] The summary screen 20 further includes a status display unit 24 that indicates the status of the components of the hybrid system 100 corresponding to the respective symbols 21a to 21d. According to this, the crew of the ship can know the status of the components constituting the hybrid system 100 in more detail through the summary screen 20. In the present embodiment, there are a plurality of status display units 24, and the plurality of status display units 24 are arranged separately from each other.

[0034] Specifically, the status display unit 24 includes an engine status display unit 24a, a motor status display unit 24b, a battery status display unit 24c, and a propulsion unit status display unit 24d. The engine status display unit 24a indicates the status of the engine 102, which is a component of the hybrid system 100 corresponding to the engine symbol 21a. The motor status display unit 24b indicates the status of the motor 103, which is a component of the hybrid system 100 corresponding to the motor symbol 21b. The battery status display unit 24c indicates the status of the battery 105, which is a component of the hybrid system 100 corresponding to the battery symbol 21c. The propulsion unit status display unit 24d indicates the status of the propulsion unit 101, which is a component of the hybrid system 100 corresponding to the propulsion unit symbol 21d. The four status display units 24a to 24d are arranged so as to surround the four symbols 21a to 24 arranged in the central part of the summary screen 20.

[0035] Specifically, the engine status display unit 24a has a character portion that displays the rotational speed of the engine 102 and a surrounding line portion that surrounds the character portion. The engine status display unit 24a is arranged adjacent to the engine symbol 21a. The engine status display unit 24a is arranged in the upper left part of the summary screen 20. Note that, for example, engine status other than the engine rotational speed, such as engine temperature, may be displayed in the display content of the engine status.

[0036] The motor status display section 24b has a character portion that displays the rotational speed of the motor 103 and a surrounding line portion that surrounds the character portion. The motor status display section 24b is arranged adjacent to the motor symbol 21b. The motor status display section 24b is arranged in the upper right part of the aggregated screen 20. Note that, for example, motor statuses other than the motor rotational speed, such as the motor temperature, may be displayed in the display content of the motor status.

[0037] The battery status display section 24c has a character portion that displays the current value and SOC of the battery 105 and a surrounding line portion that surrounds the character portion. The battery status display section 24c is arranged adjacent to the battery symbol 21c. The battery status display section 24c is arranged in the lower right part of the aggregated screen 20. Note that, for example, battery statuses other than the battery current and SOC, such as the battery voltage, may be displayed in the display content of the battery status.

[0038] The propulsion unit status display section 24d has a character portion that displays the rotational speed of the propulsion unit (propeller) 101 and a surrounding line portion that surrounds the character portion. The propulsion unit status display section 24d is arranged adjacent to the propulsion unit symbol 21d. The propulsion unit status display section 24d is arranged in the lower left part of the aggregated screen 20. Note that, for example, propulsion unit statuses other than the propeller rotational speed may be displayed in the display content of the propulsion unit status.

[0039] The aggregated screen 20 includes an operation mode display section 25 that displays a plurality of types of operation modes provided in the hybrid system 100. According to this, the crew of the ship can easily select the operation mode used in the hybrid system 100 while looking at the aggregated screen 20.

[0040] In the present embodiment, the operation mode display section 25 includes an ENG display 25a representing 'ENG Mode', an EV display 25b representing 'MOT Mode', an HYB display 25c representing 'HYB Mode', an LG display 25d representing 'LG Mode', an HV_A display 25e representing 'HYB_A Mode', and an HV_G / GN display 25f representing 'HYB_G Mode' and 'HYB_GN Mode'.

[0041] Note that the "ENG Mode" is an operation mode for running with the engine 102. The "MOT Mode" is an operation mode for running with the motor 103. The "HYB Mode" is an operation mode for assisting the running with the engine 102 by the motor 103. The "LG Mode" is an operation mode for charging the battery 105 using an onshore power source. The "HYB_A Mode" is an operation mode for assisting the running with the engine 102 more powerfully by the motor 103 than in the case of the "HYB Mode". The "HYB_G Mode" and the "HYB_GN Mode" are operation modes for charging the battery 105 using the engine 102 while running.

[0042] The operation mode display unit 25 is arranged at the end of the aggregated screen 20. Around the aggregated screen 20, a plurality of buttons 4 are arranged side by side with the operation mode display unit 25 and enable selection of each operation mode. According to this, on a ship where shaking is likely to occur, since the selection of the operation mode can be performed using the plurality of independently provided buttons 4, the possibility of erroneously selecting the operation mode can be reduced. Note that the plurality of buttons 4 are the above-described plurality of mode switching buttons 4.

[0043] Also, in the present embodiment, the operation mode display unit 25 is also displayed on a screen other than the aggregated screen 20. The operation mode display unit 25 is displayed on all screens. That is, the operation mode display unit 25 is also included in the data list screen, the warning list screen, and the abnormality list screen.

[0044] Specifically, the ENG display 25a, EV display 25b, and HYB display 25c included in the driving mode display unit 25 are arranged at the left end of the aggregated screen 20. At the left end, the ENG display 25a, EV display 25b, and HYB display 25c are arranged in this order from top to bottom. To the left of the ENG display 25a, EV display 25b, and HYB display 25c, mode switching buttons 4 are arranged respectively. When the mode switching button 4 arranged to the left of the ENG display 25a is pressed, "ENG Mode" can be selected. When the mode switching button 4 arranged to the left of the EV display 25b is pressed, "MOT Mode" can be selected. When the mode switching button 4 arranged to the left of the HYB display 25c is pressed, "HYB Mode" can be selected.

[0045] The LG display 25d, HV_A display 25e, and HV_G / GN display 25f included in the driving mode display unit 25 are arranged at the right end of the aggregated screen 20. At the right end, the LG display 25d, HV_A display 25e, and HV_G / GN display 25f are arranged in this order from top to bottom. To the right of the LG display 25d, HV_A display 25e, and HV_G / GN display 25f, mode switching buttons 4 are arranged respectively. When the mode switching button 4 arranged to the right of the LG display 25d is pressed, "LG Mode" can be selected. When the mode switching button 4 arranged to the right of the HV_A display 25e is pressed, "HV_A Mode" can be selected. When the mode switching button 4 arranged to the right of the HV_G / GN display 25f is pressed, "HV_G Mode" can be selected.

[0046] In addition, the aggregated screen 20 includes a current driving mode display area 26 indicating the currently selected driving mode. In this embodiment, the current driving mode display area 26 is located horizontally between the battery state display unit 24c and the propulsion unit state display unit 24d and is arranged below the propulsion symbol 21d. Note that FIG. 4 shows a state where none of the driving modes displayed on the driving mode display unit 25 are selected, and "STB Mode" is displayed in the current driving mode display area 26. "STB Mode" is a standby mode waiting for the selection of a driving mode.

[0047] FIG. 5A and FIG. 5B are diagrams for explaining the icon 27 during mode transition. As shown in FIG. 5A, during the transition of the operation mode, the icon 27 during mode transition is displayed below the current operation mode display area 26. Thereby, the crew of the ship can easily recognize that the operation mode is in transition.

[0048] Specifically, as shown in FIG. 5B, the icon 27 during mode transition is composed of three triangular marks 27a, 27b, and 27c arranged in the left - right direction. During mode transition, the lighting positions of the marks 27a to 27c change at a predetermined time interval (for example, 0.5 seconds, etc.). The lighting positions change in the order of the first mark 27a, the second mark 27b, and the third mark 27c. After the third mark 27c lights up, the lighting position returns to the first mark 27a. During mode transition, this change in lighting position is repeated. Thereby, the crew of the ship can more easily recognize that the operation mode is in transition.

[0049] In the present embodiment, the color of the linear part 22 is different for the first energy flow indicating the energy flow for driving the propulsion unit 101 and the second energy flow indicating the energy flow for charging the battery 105. According to this, the crew of the ship can immediately recognize the energy flow corresponding to the operation mode by looking at the summary screen 20. In the present embodiment, the configuration is such that the type of energy flow is indicated by color, but a configuration may also be adopted in which the difference in energy flow is indicated by changing the lighting method (for example, blinking and non - blinking).

[0050] Hereinafter, the summary screen 20 in a plurality of operation modes will be exemplified, and the display of the energy flow will be described in detail. In the present embodiment, the background of the summary screen 20 is black. When there is no energy flow, the color of the linear part 22 is white. The color of the linear part 22 indicating the first energy flow is green. The color of the linear part 22 indicating the second energy flow is blue.

[0051] FIG. 6A is a schematic diagram showing the aggregated screen 20 when 'ENG Mode' is selected. In 'ENG Mode', the power of the engine 102 is transmitted to the propulsion unit 101. That is, the energy for driving the propulsion unit 101 flows from the engine 102 to the propulsion unit 101. Therefore, in the aggregated screen 20 in the case of 'ENG Mode', the color of the second linear portion 22b connecting the engine symbol 21a and the propulsion unit symbol 21d becomes green. Note that the colors of the first linear portion 22a, the third linear portion 22c, and the fourth linear portion 22d are white.

[0052] FIG. 6B is a schematic diagram showing the aggregated screen 20 in the case of 'ENG_N Mode'. 'ENG_N Mode' is an operation mode when 'ENG Mode' is selected in the display device 1 and the shift lever is in neutral. In this case, even if the engine 102 is operating, no power is transmitted to the propulsion unit 101. That is, the energy for driving the propulsion unit 101 does not flow from the engine 102 to the propulsion unit 101. Therefore, in the aggregated screen 20 in the case of 'ENG_N Mode', the color of the second linear portion 22b connecting the engine symbol 21a and the propulsion unit symbol 21d becomes white, similar to the other linear portions 22a, 22c, and 22d.

[0053] FIG. 7A is a schematic diagram showing the aggregated screen 20 when 'MOT Mode' is selected. In 'MOT Mode', the motor 103 obtains electric power from the battery 105 and rotates the motor output shaft 103a, and transmits the rotational power of the motor output shaft 103a to the propulsion unit 101. That is, the energy for driving the propulsion unit 101 flows from the battery 105 to the motor 103, and further flows from the motor 103 to the propulsion unit 101. Therefore, in the aggregated screen 20 in the case of 'MOT Mode', the colors of the third linear portion 22c connecting the motor symbol 21b and the battery symbol 21c and the fourth linear portion 22d connecting the motor symbol 21a and the propulsion unit symbol 21d become green. Note that the colors of the first linear portion 22a and the second linear portion 22b are white.

[0054] FIG. 7B is a schematic diagram showing the summary screen 20 in the case of 'MOT_N Mode'. 'MOT_N Mode' is an operation mode in the display device 1 when 'MOT Mode' is selected and the shift lever is in neutral. In this case, even if the motor 103 is being powered by the battery 105 and is operating, power is not transmitted to the propulsion unit 101. That is, the energy for driving the propulsion unit 101 does not flow from the motor 103 to the propulsion unit 101. For this reason, in the summary screen 20 in the case of 'MOT_N Mode', only the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c is green, and the colors of the other linear parts 22a, 22b, 22d are white.

[0055] FIG. 8A is a schematic diagram showing the summary screen 20 when 'HYB Mode' is selected. In 'HYB Mode', the power of the engine 102 and the power of the motor 103 are combined and transmitted to the propulsion unit 101. Also, the electric power for driving the motor 103 is supplied from the battery 105 to the motor 103. That is, the energy for driving the propulsion unit 101 flows from the engine 102 to the propulsion unit 101 and also flows from the battery 105 through the motor 103 to the propulsion unit 101. For this reason, in the summary screen 20 in the case of 'HYB Mode', the colors of the second linear part 22b connecting the engine symbol 21a and the propulsion unit symbol 21d, the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c, and the fourth linear part 22d connecting the motor symbol 21a and the propulsion unit symbol 21d are green. Note that the color of the first linear part 22a is white.

[0056] When "HYB Mode" is selected and the shift lever is in neutral, it becomes "HYB_N Mode". In this case, power is not transmitted from the engine 102 and the motor 103 to the propeller 101. However, the battery 105 supplies power to the motor 103. For this reason, the summary screen 20 in the case of "HYB_N Mode" has the same energy flow display as the summary screen 20 of "MOT_N Mode" shown in FIG. 7B. That is, in the summary screen 20 in the case of "HYB_N Mode", only the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c is green, and the colors of the other linear parts 22a, 22b, and 22d are white.

[0057] FIG. 8B is a schematic diagram showing the summary screen 20 when "HV_A Mode" is selected. In "HV_A Mode", the motor 103 assists the engine 102 and the propeller 101 rotates. For this reason, in the summary screen 20 in the case of "HV_A Mode", the colors of the first linear part 22a connecting the engine symbol 21a and the motor symbol 21b, the second linear part 22b connecting the engine symbol 21a and the propeller symbol 21d, and the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c are green. Note that the color of the fourth linear part 22d is white.

[0058] FIG. 9A is a schematic diagram showing the aggregated screen 20 when 'HV_G Mode' is selected. In 'HV_G Mode', the power of the engine 102 is transmitted to the propulsion unit 101. Also, the motor output shaft 103a of the motor 103 is rotated by the power of the engine 102, and the electric power generated by the motor 103 is charged to the battery 105. That is, the energy for driving the propulsion unit 101 flows from the engine 102 to the propulsion unit 101. Also, the energy for charging the battery 105 flows from the engine 102 to the battery 105 via the motor 103. For this reason, in the aggregated screen 20 in the case of 'HV_G Mode', the color of the second linear part 22b connecting the engine symbol 21a and the propulsion unit symbol 21d becomes green. The colors of the first linear part 22a connecting the engine symbol 21a and the motor symbol 21b and the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c are blue. Note that the color of the fourth linear part 22d is white.

[0059] FIG. 9B is a schematic diagram showing the aggregated screen 20 in the case of 'HV_GN Mode'. 'HV_GN Mode' is an operation mode when 'HV_G Mode' is selected in the display device 1 and the shift lever is in neutral. In this case, power is not transmitted from the engine 102 to the propulsion unit 101. On the other hand, power is transmitted from the engine 102 to the motor 103, and the battery 105 is charged by the power generation of the motor 103. That is, the energy for driving the propulsion unit 101 does not flow from the engine 102 and the motor 103 to the propulsion unit 101. The energy for charging the battery 105 flows from the engine 102 to the battery 105 via the motor 103. For this reason, in the aggregated screen 20 in the case of 'HV_GN Mode', the color of the second linear part 22b connecting the engine symbol 21a and the propulsion unit symbol 21d becomes white instead of green. Also, the colors of the first linear part 22a connecting the engine symbol 21a and the motor symbol 21b and the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c are blue. Note that the color of the fourth linear part 22d is white.

[0060] Note that in 'LG Mode', there is no energy flow for driving the propulsion unit 101. Also, there is an energy flow for charging the battery 105, but it is configured to charge the battery 105 from an onshore power source, and this energy flow cannot be represented by the linear portions 22a to 22d of the aggregated screen 20. For this reason, in the aggregated screen 20 in the case of 'LG Mode', all of the linear portions 22a to 22d are white.

[0061] (2-3. Display of Warnings and Abnormalities) The display device 1 is preferably provided so as to be able to display an icon 60 on the aggregated screen 20 to notify at least one of the warnings and abnormalities occurring in the hybrid system 100 at the current time. By configuring in this way, the crew of the ship can quickly recognize the warnings and abnormalities occurring in the hybrid system 100. Note that in the present embodiment, the icon 60 is displayed not only on the aggregated screen 20 but also on the data list screen, the warning list screen, and the abnormality list screen.

[0062] A warning is issued when there is currently no abnormality in the hybrid system 100 but there is a possibility of an abnormality occurring in the future. The states in which a warning is issued include, for example, when the temperature of the engine 102, the motor, etc. becomes higher than a preset threshold value, or when the SOC of the battery 105 becomes lower than a preset threshold value. Also, an abnormality is issued when at least some functions of the hybrid system 100 become unusable. The abnormal states include, for example, failures of various sensors, failures of the engine 102, failures of the motor 103, failures of the power transmission device 104, etc.

[0063] FIG. 10 is a diagram showing an example of a screen when a warning occurs in the hybrid system 100. FIG. 11 is a diagram showing an example of a screen when an abnormality occurs in the hybrid system 100. In FIGS. 10 and 11, as an example, it is assumed that a warning or an abnormality occurs when the aggregated screen 20 is being displayed.

[0064] As shown in FIG. 10, when a warning occurs, a warning icon 60a is displayed in the upper right corner of the screen. Specifically, it is displayed on top of the LG display 25d. The warning icon 60a is a yellow exclamation mark. However, the position, shape, and color of the warning icon 60a may be changed as appropriate. The warning icon 60a may be configured to blink at a predetermined time interval (for example, at intervals of 0.5 seconds). This can make it easier for the crew of the ship to recognize the occurrence of the warning. The warning icon 60a is always displayed when a state that should be warned about occurs in the hybrid system 100.

[0065] As shown in FIG. 11, when an abnormality occurs, an abnormality icon 60b is displayed in the upper right corner of the screen. Specifically, the abnormality icon 60b is displayed on the right side of the warning icon 60a. In this embodiment, the abnormality icon 60b is a red exclamation mark. However, the position, shape, and color of the abnormality icon 60b may be changed as appropriate. The abnormality icon 60b may be configured to blink at a predetermined time interval, similar to the warning icon 60a. This can make it easier for the crew of the ship to recognize the occurrence of the abnormality. The abnormality icon 60b is always displayed when an abnormal state occurs in the hybrid system 100. When both a warning and an abnormality occur, both the warning icon 60a and the abnormality icon 60b are displayed on the screen.

[0066] Also, as shown in FIGS. 10 and 11, when a warning and an abnormality occur, a pop-up type display screen 70 for notifying the occurrence of the warning and the abnormality is displayed. The pop-up type display screen 70 includes, for example, characters notifying that it is a warning or an abnormality, a code number of the warning or the abnormality, characters briefly notifying the content of the warning or the abnormality, and the like. Also, in this embodiment, a graphic 70a indicating the position of the close button 6 (see FIG. 3) is also displayed on the pop-up type display screen 70. The pop-up type display screen 70 disappears only when the warning or the abnormality is resolved, or when the close button 6 is pressed.

[0067] In addition, when it is necessary to simultaneously display the pop-up type screen 70 for notifying a warning and the pop-up type screen 70 for notifying an abnormality, the pop-up type screen 70 for notifying an abnormality is preferentially displayed. Further, the pop-up type screen 70 is displayed not only when the aggregated screen 20 is displayed, but also when the data list screen, the warning list screen, and the abnormality list screen are displayed.

[0068] When a warning occurs, the content of the generated warning is added to the warning list screen. Also, when an abnormality occurs, the content of the generated abnormality is added to the abnormality list screen. The warnings and abnormalities in progress can be confirmed by the warning list screen and the abnormality list screen. The screen switching can be performed using the screen switching button 5 as described above. FIG. 12 is a diagram for explaining the screen switching method adopted in the display device 1.

[0069] In the present embodiment, a screen feed direction display unit 80 indicating the screen feed direction is displayed on all screens. The screen feed direction display unit 80 is provided below the operation mode display unit 25 (see FIG. 4 etc.). The screen feed direction display unit 80 includes a forward feed display 80a and a reverse feed display 80b. A forward feed button 5a (see FIG. 3) is arranged on the left side of the forward feed display 80a. A reverse feed button 5b (see FIG. 3) is arranged on the right side of the reverse feed display 80b.

[0070] When the forward button 5a is continuously pressed, the screen switches in the counterclockwise direction (left - hand turn direction in Fig. 12). For example, when the initial screen is the summary screen 20, continuously pressing the forward button 5a causes the screen to switch in order from the summary screen 20 to the anomaly list screen 50, the warning list screen 40, the data list screen 30, and then back to the summary screen 20. When the reverse button 5b is continuously pressed, the screen switches in the clockwise direction (right - hand turn direction in Fig. 12). For example, when the initial screen is the summary screen 20, continuously pressing the reverse button 5b causes the screen to switch in order from the summary screen 20 to the data list screen 30, the warning list screen 40, the anomaly list screen 50, and then back to the summary screen 20. Also, for example, when on the summary screen 20, if the forward button 5a is pressed and then the reverse button 5b is pressed, the screen first becomes the anomaly list screen 50 and then returns to the summary screen 20.

[0071] In this example, it is assumed that the data list screen 30, the warning list screen 40, and the anomaly list screen 50 are each one page, but they may be multiple pages depending on the amount of information to be displayed in the list. For example, if the data list screen 30 has three pages. In this case, continuously pressing the reverse button 5b from the summary screen 20 causes the screen to switch in order to the first page of the data list screen 30, the second page of the data list screen 30, the third page of the data list screen 30, the warning list screen 40, the anomaly list screen 50, and then back to the summary screen 20.

[0072] (2 - 4. Details of the operation mode display section) The operation mode display section 25 displays the operation modes that can be selected at the current time and the operation modes that cannot be selected at the current time in a distinguishable manner. With such a configuration, the crew of the ship can easily recognize the operation modes that can be selected at the current time.

[0073] FIG. 13 is a diagram for explaining the operation mode display unit 25. FIG. 13 shows the aggregated screen 20 when the operation mode is "ENG Mode". In the example shown in FIG. 13, the operation modes selectable at the current time are "ENG Mode", "EV Mode", and "HYB Mode", and the operation modes not selectable at the current time are "LG Mode", "HV_A Mode", "HV_G Mode", and "HV_GN Mode". The LG display 25d, the HV_A display 25e, and the HV_G / GN display 25f for displaying the non-selectable operation modes are grayed out, and it is possible to distinguish between the selectable operation modes (not grayed out) and the non-selectable operation modes.

[0074] Note that in this example, when the current operation mode is "ENG Mode", the reason why "ENG Mode" is selectable is to enable the cancellation (stop) of the "ENG Mode". Also, in the example shown in FIG. 13, the selectable operation modes and the non-selectable operation modes are distinguishable by using the grayed-out display, but other configurations may be used as long as they can distinguish between the two. For example, the operation mode display unit 25 may be configured to display the operation modes selectable at the current time and the operation modes not selectable at the current time in different colors.

[0075] The display device 1 performs the display of the operation mode display unit 25 in accordance with an instruction from, for example, the hybrid ECU 116 (see FIG. 2). In this example, for a certain operation mode, whether or not a selectable mode is selectable is determined in advance, and the display state of the operation mode display unit 25 is changed according to an instruction from the hybrid ECU 116 in accordance with the agreement. For example, 'HV_A Mode' and 'HV_G / GN Mode' are premised on the selection of 'HYB Mode', and cannot be selected unless 'HYB Mode' is selected at present. In the example shown in FIG. 13, since 'ENG Mode' is selected at present, 'HV_A Mode' and 'HV_G / GN Mode' cannot be selected, and the HV_A display 25e and the HV_G / GN display 25f are grayed out.

[0076] Note that, for example, when an abnormality occurs in a component constituting the hybrid system 100, there may be an operation mode that cannot be selected. For this reason, it is preferable that the hybrid ECU 116 is configured to notify the display device 1 of such information when an operation mode that becomes non-selectable due to the occurrence of an abnormality in the hybrid system 100 occurs. Then, the display device 1 preferably grays out the display of the operation mode that becomes non-selectable due to the occurrence of an abnormality or the like.

[0077] An example of the agreement regarding the selectable operation mode will be described with reference to FIG. 14. FIG. 14 is a table showing the current operation mode and the selectability of each operation mode with respect thereto. In FIG. 14, '〇' indicates that it is selectable, and '×' indicates that it is not selectable (unselectable). The shift position is the position of the shift lever, 'F' for forward, 'R' for reverse, and 'N' for neutral.

[0078] When the current operation mode is 'STB Mode' and the shift position is 'N', 'ENG Mode', 'MOT Mode', and 'LG Mode' can be selected, while 'HYB Mode' cannot be selected. When the current operation mode is 'STB Mode' and the shift positions are 'F' and 'R', none of the operation modes can be selected except 'LG Mode'. Note that for the selection of 'ENG Mode' to be possible, it is a prerequisite that the preparation of the engine 102 is completed. For the selection of 'MOT Mode' to be possible, it is a prerequisite that the preparation related to the motor 103 is completed. For 'LG Mode' to be possible, it is a prerequisite that the preparation for charging using the land power supply is completed. Note that the completion of the preparation related to the engine 102 and the motor 103 means that the startup preparation is completed, and it is a state where no problems are confirmed in the initial check and the confirmation of the presence or absence of abnormalities.

[0079] When the current operation mode is 'ENG Mode', regardless of the shift position, 'ENG Mode', 'HYB Mode', and 'MOT Mode' can be selected, while 'LG Mode' cannot be selected. However, for the selection of 'HYB Mode' and 'MOT Mode' to be possible, it is a prerequisite that the preparation related to the motor 103 is completed. Also, 'MOT Mode' cannot be selected when the shift positions are 'F' and 'R' and the throttle is at a high speed (exceeding a predetermined threshold). Also, 'LG Mode' can be selected only when the engine 102 is in a warm-up operation, provided that the preparation for charging using the land power supply is completed.

[0080] When the current driving mode is "HYB Mode", regardless of the shift position, "ENG Mode" and "MOT Mode" can be selected, and "HYB Mode" and "LG Mode" cannot be selected. However, in order for the selection of "ENG Mode" to be possible, it is a prerequisite that the preparation of the engine 102 is complete. In order for the selection of "MOT Mode" to be possible, it is a prerequisite that the preparation related to the motor 103 is complete. Also, "MOT Mode" cannot be selected when the throttle is at high speed and the shift position is "F" and "R".

[0081] When the current driving mode is "MOT Mode", regardless of the shift position, "ENG Mode", "HYB Mode", and "MOT Mode" can be selected, and "LG Mode" cannot be selected. However, in order for the selection of "ENG Mode" and "HYB Mode" to be possible, when the shift position is "N", it is a prerequisite that the preparation of the engine 102 is complete, and when the shift position is "F" and "R", it is a prerequisite that the engine 102 is not stopped or the preparation of the engine 102 is complete.

[0082] <3. Modified Example> FIG. 15 is a schematic diagram showing the aggregated screen 20A of the modified example. In the modified example, the driving mode includes "REG Mode". FIG. 15 is the aggregated screen 20A when "REG Mode" is selected. "REG Mode" is a mode in which, during sailing using the sails of a ship, the power of the propulsion unit (propeller) 101 is transmitted to the motor 103 to generate electricity and charge the battery 105 (regenerative charging).

[0083] In the 『REG Mode』, the power of the propulsion unit 101 rotates the motor output shaft 103a, and the electric power generated by the motor 103 is charged to the battery 105. That is, the energy for charging the battery 105 flows from the propulsion unit 101 through the motor 103 to the battery 105. Therefore, on the summary screen 20A in the case of 『REG Mode』, the colors of the fourth linear part 22d connecting the motor symbol 21b and the propulsion unit symbol 21d and the third linear part 22c connecting the motor symbol 21b and the battery symbol 21c are blue. Note that the colors of the first linear part 22a and the second linear part 22b are white.

[0084] <4. Precautions, etc.> Various technical features disclosed in this specification can be variously modified without departing from the gist of the technical creation. Also, a plurality of embodiments and modification examples shown in this specification may be implemented in combination as far as possible.

Explanation of Signs

[0085] 1 ··· Display device 4 ··· Mode switching button (button) 20, 20A ··· Summary screen 21 ··· Symbol 21a ··· Engine symbol 21b ··· Motor symbol 21c ··· Battery symbol 21d ··· Propulsion unit symbol 22 ··· Linear part 22a ··· First linear part 22b ··· Second linear part 22c ··· Third linear part 22d ··· Fourth linear part 24 ··· Status display part 24a ··· Engine status display part 24b ··· Motor status display part 24c ··· Battery status display part 24d ··· Propulsion unit status display part 25 ··· Operation mode display part 60 ··· Icon 60a ··· Warning icon 60b ··· Abnormal icon 100 ··· Hybrid system 101 ··· Propeller 102 ··· Engine 103 ··· Motor 105 ··· Battery

Claims

1. A display device for displaying the operating state of a hybrid system that drives a propulsion machine for propelling a ship, on the display screen for displaying the operating state, symbols representing the components constituting the hybrid system, a linear portion that connects between the symbols and changes the lighting state according to the operating mode of the hybrid system, is included, the symbols displayed on the display screen include a symbol representing an engine, a symbol representing a motor, a symbol representing a battery, and a symbol representing the propulsion machine, in the linear portion, a first linear portion connecting the symbol representing the engine and the symbol representing the motor, a second linear portion connecting the symbol representing the engine and the symbol representing the propulsion machine, a third linear portion connecting the symbol representing the motor and the symbol representing the battery, a fourth linear portion connecting the symbol representing the motor and the symbol representing the propulsion machine, is included, a display device.

2. The color of the linear portion is a first energy flow indicating the flow of energy for driving the propulsion machine, a second energy flow indicating the flow of energy for charging the battery, is different colors, the display device according to claim 1.

3. The display screen further includes a state display portion indicating the state of the components of the hybrid system corresponding to the symbols, the display device according to claim 1 or 2.

4. The display screen further includes an operation mode display portion for displaying a plurality of types of the operation modes provided in the hybrid system, the display device according to any one of claims 1 to 3.

5. The operation mode display portion displays the operation mode selectable at the current time and the operation mode not selectable at the current time in a distinguishable manner, the display device according to claim 4.

6. The operation mode display portion is arranged at an end of the display screen, around the display screen, a plurality of buttons for enabling selection of each of the operation modes are arranged side by side with the operation mode display portion, the display device according to claim 4 or 5.

7. The display screen is provided so as to be able to display an icon for notifying at least one of a warning and an abnormality occurring in the hybrid system at the current time, the display device according to any one of claims 1 to 6.

8. The display device according to any one of claims 1 to 7 is provided so as to be switchable to a screen showing another operating state different from the display screen.

9. A ship comprising the display device according to any one of Claims 1 to 8.

Images