Barrier-free ramp system

Abstract

The barrier-free ramp system of the present invention comprises: a barrier-free ramp main body, which can move forward from the vehicle floor toward the road surface at the door opening; a barrier-free ramp status detection device, which detects the forward and backward status of the above-mentioned barrier-free ramp main body; a display, which displays an image in a display area that can be visually recognized from the operator's seat; and a UI controller, which controls the display of the above-mentioned display, and the above-mentioned UI controller causes a status image including an image representing the above-mentioned forward and backward status to be displayed on the above-mentioned display.

Description

Technical Field

[0001] This specification discloses a barrier-free ramp system including a barrier-free ramp body that can be advanced from a vehicle floor toward a road surface at a vehicle door opening. Background Art

[0002] In the past, to assist wheelchair users in boarding and exiting vehicles, it has been proposed to install an accessible ramp extending from the vehicle floor toward the road surface at the door opening. Japanese Patent Application Laid-Open No. 2014-169051 discloses a vehicle equipped with a powered accessible ramp that advances and retreats. In Japanese Patent Application Laid-Open No. 2014-169051, an indicator is installed on the side of the accessible ramp to indicate the status of the accessible ramp (e.g., whether the accessible ramp is grounded). Based on this indicator, the wheelchair user or an assistant can determine the status of the accessible ramp and, therefore, whether the wheelchair user can begin boarding or exiting the vehicle.

[0003] However, the vehicle is accompanied by an operator who manages the vehicle's operation. This operator needs to confirm that the barrier-free ramp is in place before the vehicle begins driving. However, in the technology of Japanese Patent Application Laid-Open No. 2014-169051, the indicator indicating the status of the barrier-free ramp is only provided on the barrier-free ramp itself. Therefore, in the technology of Japanese Patent Application Laid-Open No. 2014-169051, the operator needs to significantly change their body orientation as needed to visually observe the barrier-free ramp. Furthermore, depending on the positional relationship between the operator's seat and the door opening, it can be difficult to determine the forward and backward position of the barrier-free ramp from the operator's seat. Especially when the door is closed, it is difficult to determine from the operator's seat whether the barrier-free ramp is deployed outside the door. Consequently, in conventional technologies such as Japanese Patent Application Laid-Open No. 2014-169051, the operator needs to move near the door opening and confirm the status of the barrier-free ramp before driving begins. However, changing the body orientation or the operator moving on foot to confirm the status of the barrier-free ramp is very cumbersome. Summary of the Invention

[0004] Therefore, this specification discloses a barrier-free inclined board system that allows an operator to more easily grasp the forward and backward states of the barrier-free inclined board.

[0005] The barrier-free ramp system disclosed in this specification is characterized in that it comprises: a barrier-free ramp main body, which can move forward from the vehicle floor toward the road surface at the door opening; a barrier-free ramp status detection device, which detects the forward and backward status of the above-mentioned barrier-free ramp main body; a display, which displays an image in a display area that can be visually recognized from the operator's seat; and a UI controller, which controls the display of the above-mentioned display, and the above-mentioned UI controller causes a status image including an image representing the above-mentioned forward and backward status to be displayed on the above-mentioned display.

[0006] With this configuration, the operator can grasp the forward and backward state of the barrier-free inclined plate main body without changing the orientation of the body or moving the body.

[0007] In this case, the UI controller can also be configured to display the status image on the same screen as the switch button that the operator selects when switching the vehicle from a stopped state to a moving state. This configuration allows the status image to naturally and easily enter the operator's field of view when the operator presses the switch button. This effectively prevents the operator from forgetting to start vehicle travel without first confirming the forward or backward state of the barrier-free ramp body.

[0008] Furthermore, the vehicle may further include a door state detection device for detecting an open / close state of a door body that covers the door opening in an openable / closable manner, and the state image may further include an image indicating the open / close state.

[0009] With this configuration, the operator can also easily grasp the open / closed state of the door body.

[0010] In this case, the state image may include a schematic diagram of the vehicle, the barrier-free ramp main body, and the door main body as viewed from above.

[0011] With this configuration, the operator can intuitively and quickly grasp the states of the barrier-free inclined plate main body and the door main body.

[0012] Furthermore, the barrier-free sloping board state detection device may include a rotation speed sensor for detecting the rotation speed of a barrier-free sloping board motor serving as a power source for advancing and retreating the barrier-free sloping board body, and may determine the advance and retreat state based on the detected rotation speed.

[0013] With this configuration, the forward and backward state of the barrier-free inclined plate main body can be accurately detected.

[0014] In this case, the barrier-free inclined board state detection device may further detect the presence of malfunction of the barrier-free inclined board main body, and the state image may include a warning image indicating the malfunction when the malfunction occurs.

[0015] With this configuration, the operator can also grasp the presence or absence of malfunction of the barrier-free inclined plate main body at an early stage, and can take measures to deal with the malfunction at an early stage.

[0016] In this case, the barrier-free inclined plate state detection device may also be constructed as follows: the barrier-free inclined plate state detection device includes a speed sensor for detecting the speed of the barrier-free inclined plate motor serving as a power source for moving the barrier-free inclined plate body forward and backward, a current sensor for detecting the value of the applied current of the barrier-free inclined plate motor, and a position switch for detecting that the barrier-free inclined plate body has reached a specified position. The presence or absence of malfunction of the barrier-free inclined plate body is determined based on the detection value of the current sensor and a comparison result between the position of the barrier-free inclined plate body inferred from the on / off state of the position switch and the position of the barrier-free inclined plate body inferred from the speed.

[0017] With this configuration, the presence or absence of malfunction can be reliably detected.

[0018] In this case, it can also be constructed as follows: there is also an accessible inclined plate switch, which is arranged at a position closer to the above-mentioned door opening than the above-mentioned operator seat, receives an instruction to unfold or accommodate the above-mentioned accessible inclined plate body, and is invalidated under specific conditions, and the above-mentioned status image includes an invalidation image showing the situation when the above-mentioned accessible inclined plate switch is invalidated.

[0019] By displaying the disabling image, the operator can recognize that the barrier-free inclined plate switch has been disabled, and further recognize that the barrier-free inclined plate main body has not moved against the operator's will, and can concentrate on other work with peace of mind.

[0020] Furthermore, the device may further include a speaker for outputting sound toward the operator seat, and the UI controller may output a sound corresponding to the state of the barrier-free inclined board from the speaker in parallel with the display of the state image.

[0021] With this configuration, the operator can more reliably grasp the state of the barrier-free inclined plate main body.

[0022] According to the barrier-free inclined board system disclosed in this specification, the operator can more easily grasp the forward and backward states of the barrier-free inclined board.

[0023] Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention are described below with reference to the accompanying drawings, wherein like reference numerals denote like elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a perspective view of a vehicle equipped with an accessible ramp system.

[0025] Figure 2 This is a diagram showing the interior of the car as viewed from directly above.

[0026] Figure 3This is a block diagram showing the structure of a barrier-free inclined board system.

[0027] Figure 4 It is a diagram showing a specific structure of the barrier-free inclined plate state detection device.

[0028] Figure 5 1 is a diagram showing an example of an operation screen 70 displayed on the display.

[0029] Figure 6 This is a diagram showing an example of a state image when the door main body is fully opened and the barrier-free inclined plate main body is in the extended state.

[0030] Figure 7 This is a diagram showing an example of a state image when the door body is completely closed and the barrier-free inclined plate body is in the retracted state.

[0031] Figure 8 This is a diagram showing an example of a state image when the door body is completely closed and the barrier-free inclined plate body is in a transition state.

[0032] Figure 9 1 is a diagram showing an example of the status image 74 including the warning mark 82 .

[0033] Figure 10 1 is a diagram showing an example of the status image 74 including the invalidation mark 84 . DETAILED DESCRIPTION

[0034] Hereinafter, the structure of the barrier-free inclined board system 10 will be described with reference to the drawings. Figure 1 is a perspective view of a vehicle equipped with the barrier-free inclined plate system 10. Figure 2 This is a diagram showing the interior of the car as viewed from directly above.

[0035] The vehicle is a shared vehicle for unspecified passengers to get on and off, such as a bus that travels along a predetermined route and stops at predetermined stops. The vehicle in this example has an automatic driving function that allows the vehicle to perform all dynamic driving tasks. Here, "automatic driving" refers to, for example, any one of Levels 3 to 5 established by the Society of Automotive Engineers (SAE) of the United States. Level 3 is a driving style that automates all dynamic driving tasks in specific places such as highways and requires driver operation in emergencies. In addition, Level 4 is a driving style that automates all dynamic driving tasks only in specific places and also automatically handles emergency responses. Level 5 is a driving style that can perform automatic driving under almost all conditions without restrictions such as location, and refers to the so-called "fully automatic driving". In addition, in the following description, "operator" refers to a person who rides in the vehicle in order to give various instructions to the vehicle.

[0036] like Figure 1 As shown, the vehicle has an engine hood and a trunk, and has a roughly box-shaped (rectangular) shape with the front and rear ends standing roughly vertically. A door opening 12 for passengers to get on and off the vehicle is formed on the side of the vehicle. The door opening 12 is covered by a door body 32 so as to be opened and closed freely. The door body 32 in this example is a sliding door that opens and closes the door opening 12 by sliding along the side wall of the vehicle in the front-to-rear direction. However, the shape of the door body 32 is not particularly limited as long as it can cover the door opening 12 so as to be opened and closed freely. Therefore, the door body 32 can be a folding door, a swing door, or a pop-up door.

[0037] The vehicle is also provided with a barrier-free inclined plate body 22 for assisting wheelchair users in getting on and off the vehicle. The barrier-free inclined plate body 22 can be changed into a stored state and an expanded state. Figure 1 、 Figure 2 , the barrier-free inclined plate body 22 is shown in the expanded state. In the expanded state, the barrier-free inclined plate body 22 extends from the lower end of the door opening 12 and then from the vehicle floor toward the road surface, and the end of the barrier-free inclined plate body 22 is grounded to the road surface. In the accommodated state, the barrier-free inclined plate body 22 is accommodated in the underfloor space on the lower side of the vehicle floor. In the process of changing from the accommodated state to the expanded state, or from the expanded state to the accommodated state, the barrier-free inclined plate actuator 24 (see Figure 3 ) Move the barrier-free inclined plate body 22. Hereinafter, the barrier-free inclined plate body 22 in the state of moving to change from the stored state to the expanded state or from the expanded state to the stored state is referred to as a "transition state."

[0038] like Figure 2 As shown, an operator seat 16 is provided at the front of the vehicle for the operator to sit. The operator seat 16 is provided at the front of the vehicle. An operation panel 18 is arranged in front of the operator seat 16. The operation panel 18 receives operation instructions from the operator and provides information to the operator using a display 48.

[0039] Next, the barrier-free inclined plate system 10 mounted on the vehicle will be described. Figure 3 1 is a block diagram showing the structure of the barrier-free inclined board system 10. Figure 3 As shown, the barrier-free inclined panel system 10 includes a barrier-free inclined panel unit 20 , a door unit 30 , and a UI unit 40 .

[0040] The barrier-free sloping plate unit 20 is a unit for driving the barrier-free sloping plate body 22 and causing it to advance and retract. It includes the barrier-free sloping plate body 22, a barrier-free sloping plate actuator 24, a barrier-free sloping plate state detection device 28, and a barrier-free sloping plate switch 29. As described above, the barrier-free sloping plate body 22 is a plate that can change between a deployed state extending from the vehicle floor toward the road surface, a stowed state stored in the vehicle's underfloor space, and a transitional state in which it moves to change between the deployed state and the stowed state.

[0041] The barrier-free swash plate actuator 24 is an actuator for moving the barrier-free swash plate body 22. The structure of the barrier-free swash plate actuator 24 is not particularly limited, but for example, the barrier-free swash plate actuator 24 includes a motor 26 as a power source and a transmission mechanism (e.g., gears, pulleys, etc.) that transmits the output torque of the motor 26 to the barrier-free swash plate body 22.

[0042] The barrier-free inclined plate state detection device 28 is a device that detects the state of the barrier-free inclined plate main body 22. The detection result of the barrier-free inclined plate state detection device 28 is sent to the UI unit 40 as a barrier-free inclined plate detection result. The barrier-free inclined plate detection result includes at least information indicating whether the barrier-free inclined plate main body 22 is in the forward or backward state, that is, the expanded state, the accommodated state, or the transitional state. In addition, the barrier-free inclined plate detection result also includes information indicating whether the barrier-free inclined plate main body 22 is malfunctioning. The specific structure of the barrier-free inclined plate state detection device 28 will be described later.

[0043] The barrier-free inclined panel switch 29 is a switch that receives an instruction to deploy or retract the barrier-free inclined panel body 22. The barrier-free inclined panel switch 29 is located near the door opening 12, in other words, closer to the door opening 12 than the operator's seat 16. A passenger can operate the barrier-free inclined panel switch 29 as needed. By operating the barrier-free inclined panel switch 29, the barrier-free inclined panel body changes from the retracted state to the deployed state, or vice versa.

[0044] The door unit 30 is a unit for opening and closing the door body 32, and includes the door body 32, a door actuator 34, and a door state detection device 36. As described above, the door body 32 is a panel member that covers the door opening 12 in an openable and closable manner.

[0045] The door actuator 34 is an actuator for moving the door body 32 and has, for example, a motor as its power source. The door state detector 36 detects the open or closed state of the door body 32. This door state detector 36 includes, for example, a rotation speed sensor that detects the rotation speed of the motor that moves the door body 32, and a door sensor that outputs a signal when the door body 32 is fully opened or fully closed. The open or closed state of the door body 32 detected by the door state detector 36 is transmitted to the UI unit 40.

[0046] The UI unit 40 is a unit that outputs information about the barrier-free inclined plate body 22 to the operator. Furthermore, the UI unit 40 may be a dedicated unit for outputting information about the barrier-free inclined plate body 22, or a general user interface device installed in the vehicle may be used as the UI unit 40. In this example, the UI unit 40 is a user interface device that outputs information to the operator and receives operational instructions from the operator.

[0047] The UI unit 40 includes a UI controller 42, a display 48, and a speaker 50. The display 48 displays an image in a display area that can be visually recognized from the operator's seat 16. The display 48 is not particularly limited as long as it can display images. Therefore, the display 48 can be a display that projects images on the display 48 itself, a projector that projects images onto a display area, or a head-up display that projects images onto a space or a transparent plate. In addition, the display 48 can also be a touch panel that displays images and detects user touch input. In this example, the display 48 is a touch panel assembled with the operation panel 18. The speaker 50 outputs sound toward the operator's seat and is assembled with the operation panel 18.

[0048] The UI controller 42 controls the display of the display 48 and the sound output of the speaker 50. The UI controller 42 is physically a computer having a processor 44 and a memory 46. The "computer" also includes a microcontroller that assembles a computer system into an integrated circuit. In addition, the processor 44 refers to a processor in a broad sense, including general-purpose processors (such as CPU: Central Processing Unit (Central Processing Unit)), specialized processors (such as GPU: Graphics Processing Unit (Graphics Processing Unit), ASIC: Application Specific Integrated Circuit (Application Specific Integrated Circuit), FPGA: Field Programmable Gate Array (Field Programmable Gate Array), programmable logic devices, etc.). In addition, the memory 46 may also include at least one of a semiconductor memory (such as RAM, ROM, solid-state hard disk, etc.) and a disk (such as a hard disk drive, etc.).

[0049] The UI controller 42 displays a state image 74 (see FIG. 1 ) showing the state of the barrier-free inclined plate main body 22 detected by the barrier-free inclined plate state detection device 28 and the open / close state of the door main body 32 detected by the door state detection device 36. Figure 5 ) is displayed on the display 48, which will be described later.

[0050] Next, refer to Figure 4 The specific structure of the barrier-free sloping board state detection device 28 will be described. As described above, the barrier-free sloping board body 22 moves forward or backward by the drive of the motor 26. The barrier-free sloping board state detection device 28 includes a rotation speed sensor 60, a current sensor 62, and a position switch 64 to detect the state of the barrier-free sloping board body 22.

[0051] The rotation speed sensor 60, such as an encoder, detects the rotation speed Ns and rotation direction of the motor 26. Furthermore, the current sensor 62 detects the current value Is applied to the motor 26. Since the output torque of the motor 26 is generally proportional to the current value Is, the current value Is can be considered a parameter indicating the output torque of the motor 26.

[0052] In addition, Figure 4 Although only one motor 26 is shown in the figure, multiple motors 26 may be provided to move the barrier-free inclined plate body 22. Furthermore, when multiple motors 26 are provided, the same number of rotation speed sensors 60 and current sensors 62 as the number of motors 26 may be provided to detect the rotation speed Ns and current value Is of each of the multiple motors 26.

[0053] The position switch 64 detects when the barrier-free inclined plate body 22 has entered the accommodated state. Specifically, the position switch 64 is a switch that turns on when the barrier-free inclined plate body 22 has fully retreated and entered the accommodated state, and turns off when the barrier-free inclined plate body 22 advances from the accommodated state. This position switch 64 is, for example, a contact switch or proximity switch that turns on when an object contacts or approaches. In this case, the position switch 64 is positioned in contact with or close to the barrier-free inclined plate body 22 in the accommodated state. A switch signal Ss indicating the on / off state of the position switch 64 is transmitted to the barrier-free inclined plate controller 66.

[0054] The barrier-free inclined plate controller 66 is a computer with a processor and memory. Based on the detection results of the rotational speed sensor 60, the detection results of the current sensor 62, and the switch signal from the position switch 64, the barrier-free inclined plate controller 66 controls the drive of the motor 26, determines the state of the barrier-free inclined plate body 22, and transmits the determination result to the UI unit 40. Specifically, the barrier-free inclined plate controller 66 determines the amount and direction of advance and retreat of the barrier-free inclined plate body 22 based on the rotational speed Ns and rotational direction detected by the rotational speed sensor 60. Furthermore, based on this amount and direction, the barrier-free inclined plate controller 66 determines the advance and retreat state of the barrier-free inclined plate body 22, that is, whether the barrier-free inclined plate body 22 is currently in the deployed state, the accommodated state, or the transitional state.

[0055] The ramp controller 66 can also determine whether the ramp body 22 is malfunctioning. For example, the ramp controller 66 can pre-store an upper limit for the current applied to the motor 26 during normal movement of the ramp body 22 and determine whether a malfunction has occurred based on a comparison of this upper limit with the current value Is detected by the current sensor 62. Specifically, during movement of the ramp body 22, if a foreign object becomes lodged in the ramp body 22 or the ramp actuator 24, causing the ramp body 22 to become abnormally locked even when the motor 26 is driven, the ramp body 22 will not move. In this case, the output torque of the motor 26 becomes excessive, and thus the applied current becomes excessive. Therefore, if the detected current value Is exceeds the upper limit, the ramp controller 66 can determine that an abnormal lock has occurred.

[0056] Furthermore, the barrier-free inclined plate controller 66 can also determine the presence of a malfunction based on a comparison of the position of the barrier-free inclined plate body 22 inferred from the detection result of the position switch 64 and the position of the barrier-free inclined plate body 22 inferred from the detection result of the rotational speed sensor 60. Specifically, if the position switch 64 is not on despite the rotational speed Ns indicating the stored state, or if the position switch 64 is on despite the rotational speed Ns indicating the transition state or the deployed state, then an abnormality has occurred in one or both of the rotational speed sensor 60 and the position switch 64. This can lead to the inference that a sensor abnormality has occurred that prevents accurate detection of the state of the barrier-free inclined plate body 22.

[0057] In the event of a sensor abnormality, the barrier-free inclined plate actuator 24 cannot properly move and control the barrier-free inclined plate body 22, thereby causing malfunction. Therefore, when the detection result of the position switch 64 contradicts the detection result of the speed sensor 60, the barrier-free inclined plate controller 66 determines that a malfunction has occurred due to a sensor abnormality. The barrier-free inclined plate controller 66 sends the forward and backward state of the barrier-free inclined plate body 22 and the presence or absence of malfunction as detection results to the UI unit 40. In addition, in this example, the position switch 64 is set to a position that is turned on in the storage state, but the position switch 64 can be set to other positions as long as it is turned on when the barrier-free inclined plate body 22 reaches the specified position. In addition, the position switch 64 is not limited to one, and multiple positions can be set.

[0058] The UI controller 42 displays a status image 74 reflecting the detection result transmitted from the barrier-free inclined plate status detection device 28 on the display 48. More specifically, the UI controller 42 displays an operation screen 70 required for vehicle driving management on the display 48, which is a touch panel, and includes the status image 74 in the operation screen 70. Figure 5 This figure shows an example of an operation screen 70 displayed on the display 48, which is a touch panel. Operation screen 70 includes information images showing the vehicle's status and virtual buttons that accept touch inputs from the operator. Examples of information images include an image 86a showing the remaining battery charge and an image 86b showing the operating status of the air conditioner. Examples of virtual buttons include a start button 88a for instructing the start of driving, a shift button 88b for selecting a gear, and a mode button 88c for selecting a driving mode. Operation screen 70 also includes a status image 74.

[0059] As described above, the status image 74 is an image indicating the status of the barrier-free inclined plate main body 22. As described above, the operation screen 70 including the status image 74 is displayed on the display 48. As repeatedly stated, the display 48 is provided at a position that can be visually identified from the operator seat 16, specifically, is provided in the operation panel 18. Therefore, by assembling the status image 74 on the operation screen 70 for display, the operator can grasp the status of the barrier-free inclined plate main body 22 while remaining seated in the operator seat 16. In other words, the operator does not need to change the orientation of the body or stand up and walk to the vicinity of the door opening 12 in order to grasp the status of the barrier-free inclined plate main body 22, thereby reducing the burden on the operator.

[0060] Furthermore, as repeatedly mentioned, the status image 74 is displayed on the operation screen 70, that is, on the same screen as the start driving button 88a and the shift button 88b. The start driving button 88a and the shift button 88b can be said to be a type of switching button that the operator must operate when switching the vehicle from the parked state to the driving state. By displaying the status image 74 on the same screen as these switching buttons, the status image 74 is easily visible to the operator when switching from the parked state to the driving state. This also more reliably prevents the operator from forgetting to check the status of the barrier-free inclined plate body 22 before starting to drive.

[0061] The state image 74 may be an image including schematic diagrams of the vehicle, the barrier-free ramp main body 22 , and the door main body 32 . Figures 6 to 10 74 is a diagram showing an example of the state image 74. Figure 6 As shown, the state image 74 includes a vehicle schematic diagram 76, which is a schematic diagram of the vehicle viewed from directly above, a door schematic diagram 78, which is a schematic diagram of the door body 32 viewed from directly above, and an accessible inclined plate schematic diagram 80, which is a schematic diagram of the accessible inclined plate body 22 viewed from directly above. The door schematic diagram 78 and the accessible inclined plate schematic diagram 80 change within the state image 74 depending on the open / closed state of the door body 32 and the forward / backward state of the accessible inclined plate body 22. This configuration allows the operator to intuitively grasp the status of the accessible inclined plate body 22 and the door body 32 in a short period of time.

[0062] The shape of the barrier-free inclined plate diagram 80 can also be changed according to the amount of advance and retreat of the barrier-free inclined plate body 22. Therefore, it can also be configured so that when the barrier-free inclined plate body 22 is in the expanded state, Figure 6 As shown, the left and right dimensions of the barrier-free inclined plate schematic 80 are the largest. When the barrier-free inclined plate main body 22 is in the accommodation state, as shown in FIG. Figure 7 As shown, the barrier-free inclined plate schematic diagram 80 becomes non-displayed, and when the barrier-free inclined plate body 22 is in a transition state, as shown in FIG. Figure 8 As shown, the left-right dimension of the barrier-free inclined plate diagram 80 changes according to the amount of advance and retreat.

[0063] Alternatively, in place of or in addition to the shape of the barrier-free inclined panel diagram 80, at least one of its color and display time may change depending on the forward or backward movement of the barrier-free inclined panel body 22. For example, the barrier-free inclined panel diagram 80 may be continuously displayed in a first color when the barrier-free inclined panel body 22 is in the extended state, and may be hidden when the barrier-free inclined panel body 22 is in the retracted state. Furthermore, the barrier-free inclined panel diagram 80 may be displayed in a flashing manner or in a second color different from the first color when the barrier-free inclined panel body 22 is in a transitional state.

[0064] By changing at least one of the color and display time of the barrier-free inclined board diagram 80 according to the forward and backward state of the barrier-free inclined board body 22 , it is easier to distinguish between the deployed state and the transition state than when only the shape is changed.

[0065] In addition, the display position of the door diagram 78 can also be changed according to the opening and closing amount of the door body 32. Therefore, it can also be configured so that: when the door body 32 is fully opened, as shown in FIG. Figure 6 As shown, a pair of door schematic diagrams 78 are shown in upper and lower separated positions. When the door body 32 is fully closed, as shown in FIG. Figure 7 As shown, a pair of door schematic diagrams 78 are displayed at positions contacting each other. In this way, by also displaying the door schematic diagram 78 showing the state of the door main body 32, the operator can easily and reliably grasp the state of the door main body 32.

[0066] Furthermore, the state image 74 may include a warning mark 82 when a malfunction of the barrier-free inclined plate main body 22 occurs. That is, when the barrier-free inclined plate state detection device 28 detects a malfunction of the barrier-free inclined plate main body 22, the UI controller 42 displays the warning mark 82 in addition to the vehicle schematic diagram 76 and the like. Figure 9 8 is a diagram showing an example of the status image 74 including a warning mark 82. In this case, the warning mark 82 is displayed superimposed on the barrier-free inclined plate schematic diagram 80. By displaying the warning mark 82, the operator can recognize the occurrence of malfunction of the barrier-free inclined plate body 22 at an early stage.

[0067] In addition, a warning sound corresponding to the state of the barrier-free inclined plate body 22 may be output in parallel with the display of the above-mentioned state image 74. For example, when the barrier-free inclined plate body 22 is in a transitional state, the UI controller 42 may output a first sound (e.g., an intermittent electronic sound) indicating the movement of the barrier-free inclined plate body 22 from the speaker 50. In addition, when a malfunction of the barrier-free inclined plate body 22 occurs, the UI controller 42 may output a second sound (e.g., a warning buzzer) for calling attention from the speaker 50. In this way, the state of the barrier-free inclined plate body 22 is notified not only visually but also auditorily, thereby enabling the operator to more reliably grasp the state of the barrier-free inclined plate body 22.

[0068] However, as mentioned above, the vehicle is provided with an accessible inclined plate switch 29 for indicating the storage or deployment of the accessible inclined plate body 22. The accessible inclined plate switch 29 is provided near the door opening 12, and the passenger can operate it as needed. In other words, by providing the accessible inclined plate switch 29, the passenger can freely change the state of the accessible inclined plate body 22. However, under certain conditions, it is required to invalidate such an accessible inclined plate switch 29. For example, it is not desirable for the accessible inclined plate body 22 to be activated while the vehicle is traveling. Therefore, it can also be configured so that if the preparations for starting the vehicle's travel are completed, the accessible inclined plate unit 20 will invalidate the accessible inclined plate switch 29 until the vehicle stops. By having this structure, even if the passenger accidentally touches the accessible inclined plate switch 29 after the preparations for starting the travel are completed, the accessible inclined plate body 22 can be prevented from being activated.

[0069] Furthermore, when the barrier-free inclined plate switch 29 is disabled, the state image 74 may include a disablement mark 84 indicating this. Figure 10 This figure shows an example of the status image 74 including the disabling mark 84. By displaying the disabling mark 84 as part of the status image 74, the operator can easily understand the status of the barrier-free inclined plate switch 29. Furthermore, while the disabling mark 84 is displayed, the barrier-free inclined plate body 22 is prevented from being activated against the operator's will, allowing the operator to perform other tasks with peace of mind.

[0070] As can be seen from the above description, according to the barrier-free inclined plate system 10 disclosed in this specification, the status image 74 indicating the status of the barrier-free inclined plate main body 22 is displayed on the display 48 that can be visually recognized from the operator's seat 16. As a result, the operator can simply and reliably grasp the status of the barrier-free inclined plate main body 22. In addition, the above description is an example, and if the status image 74 including the image indicating the forward and backward status of the barrier-free inclined plate main body 22 is displayed in a display area that can be visually recognized from the operator's seat 16, other structures can also be appropriately changed. For example, in the above description, the status image 74 includes an illustration (schematic diagram) indicating the status of the barrier-free inclined plate main body 22, but the status image 74 may also include a text image indicating the status of the barrier-free inclined plate main body 22 instead of the illustration.

[0071] In addition, in the above description, the status image 74 includes, in addition to the image indicating the forward and backward state of the barrier-free inclined plate body 22, an image indicating the open and closed state of the door body 32 and an image indicating the presence or absence of malfunction of the barrier-free inclined plate body 22, but these images can also be omitted. In addition, the status image 74 can also be displayed on a screen separate from the switching button (i.e., the driving start button 88a, the shift button 88b, etc.). In addition, in the above description, the status image 74 is only displayed on the operation screen 70 visually recognized by the operator, but the status image 74 can also be displayed in other parts. For example, a second display can also be provided on the door body 32 and the status image 74 can be displayed on the second display. By having this structure, not only the operator but also the passenger can reliably grasp the state of the barrier-free inclined plate body 22.

Claims

1. A barrier-free inclined board system, characterized in that: The barrier-free inclined board system comprises: An accessible ramp body capable of advancing from the vehicle floor to the road surface at the door opening; An accessible inclined board state detection device detects the forward and backward state of the accessible inclined board body; a display that displays an image in a display area that is visually recognizable from an operator's seat; as well as A UI controller controls the display of the display, The UI controller causes the display to display a status image including an image indicating the forward and backward status. The barrier-free inclined plate state detection device further detects whether the barrier-free inclined plate main body has malfunctioned. The status image includes a warning image showing the occurrence of the malfunction, The barrier-free inclined plate state detection device includes a speed sensor for detecting the speed of the barrier-free inclined plate motor which is the power source for moving the barrier-free inclined plate body forward and backward, a current sensor for detecting the value of the applied current of the barrier-free inclined plate motor, and a position switch for detecting that the barrier-free inclined plate body has reached a specified position. The presence or absence of malfunction of the barrier-free inclined plate body is determined based on the detection value of the current sensor and the comparison result of the position of the barrier-free inclined plate body inferred from the on / off state of the position switch and the position of the barrier-free inclined plate body inferred from the speed.

2. The barrier-free inclined board system according to claim 1, characterized in that: The UI controller displays the state image on the same screen as a switch button for an operator to select when switching a vehicle from a stopped state to a running state.

3. The barrier-free inclined board system according to claim 1, characterized in that: The vehicle door also includes a door state detection device for detecting the open / close state of a door body that covers the door opening in a freely openable and closable manner. The state image also includes an image representing the open and closed state.

4. The barrier-free inclined board system according to claim 3, characterized in that: The state image includes a schematic diagram of the vehicle, the barrier-free inclined plate main body, and the door main body as viewed from an upper side.

5. The barrier-free inclined board system according to claim 1, characterized in that: The barrier-free sloping board state detection device includes a rotation speed sensor for detecting the rotation speed of a barrier-free sloping board motor serving as a power source for advancing and retreating the barrier-free sloping board main body, and determines the advancing and retreating state based on the detected rotation speed.

6. The barrier-free inclined board system according to claim 1, characterized in that: The barrier-free inclined plate switch is further provided, the barrier-free inclined plate switch being arranged at a position closer to the door opening than the operator's seat, receiving an instruction to unfold or retract the barrier-free inclined plate body and being invalidated under a specific condition. The state image includes a deactivation image showing a situation in which the barrier-free inclined plate switch is deactivated.

7. The barrier-free inclined board system according to any one of claims 1 to 6, characterized in that: It also includes a speaker for outputting sound toward the operator's seat. The UI controller causes the speaker to output a sound corresponding to the state of the barrier-free inclined board in parallel with the display of the state image.

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