Saddle-riding type vehicle and projection device
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Filing Date
- 2023-09-27
- Publication Date
- 2026-03-30
AI Technical Summary
The prior art is difficult to effectively provide drivers of a riding vehicle with information on the surrounding environment, especially traffic conditions behind the rear, within a limited front view of the vehicle.
A light source part is provided on the side of the riding vehicle, and a reflective part is provided in front of the handle in front of the driver. The light projected through the light source part is reflected on the reflective part, forming a light signal in the driver's field of view to inform the information of the surrounding environment.
It realizes that without interfering with the driver's forward vision, the information about the surrounding environment of the driver, especially the traffic conditions behind the driver, is effectively notified, and the driver's operating burden is reduced.
Abstract
Description
Saddle-type vehicle and projection device
[0001] The present invention relates to a saddle-type vehicle and a projection device.
[0002] For saddle-riding vehicles such as motorcycles, a technology relating to a so-called head-up display that provides various information related to the saddle-riding vehicle by superimposing it on the field of view (foreground) of the rider (driver) has been proposed (see Patent Document 1). Patent Document 1 discloses a technology in which a windshield provided in front of the saddle-riding vehicle is used as a screen and an image showing traffic information is projected (displayed) on the windshield in order to provide traffic information related to traffic on the saddle-riding vehicle to the rider.
[0003] Japanese Patent Application Laid-Open No. 2001-278153
[0004] The above-mentioned conventional technology projects information only in the front, but in that case, the information can only be projected in a limited space on the screen. Since the projection space in a saddle-type vehicle is more limited than in a four-wheeled automobile, there is a demand for technology that can provide (display) various information about the saddle-type vehicle to the rider while ensuring (prioritizing) the rider's frontal field of view in the limited space.
[0005] The present invention provides a technique that is advantageous for notifying a driver of the situation around a saddle-ride type vehicle.
[0006] A saddle-ride type vehicle according to one aspect of the present invention includes a handlebar and a meter unit provided in the center in front of the handlebar, and is characterized in that a light-emitting unit is provided on the side of the saddle-ride type vehicle, and a reflector is provided in front of the handlebar that reflects light from the light-emitting unit toward the side of the meter unit.
[0007] Another aspect of the present invention provides a projection device that is installed in a saddle-ride type vehicle that includes a handlebar and a meter unit provided in the center in front of the handlebar, and is characterized in that it has a light-emitting unit provided on the side of the saddle-ride type vehicle and a reflecting unit provided in front of the handlebar that reflects light from the light-emitting unit toward the side of the meter unit.
[0008] According to the present invention, for example, in a saddle-ride type vehicle, it is possible to provide a technique that is advantageous for notifying a driver of the situation around the saddle-ride type vehicle.
[0009] Other features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings, in which the same or similar elements are designated by the same reference numerals.
[0010] The accompanying drawings are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention, and are used to explain the principles of the present invention together with the description. Fig. 1 is a diagram showing the configuration of a saddle-ride type vehicle according to one aspect of the present invention. Fig. 2 is a diagram showing the configuration of a saddle-ride type vehicle according to one aspect of the present invention. Fig. 3 is a diagram showing the front of the saddle-ride type vehicle from the rider's perspective. Fig. 4 is a diagram showing the windshield from the rider's perspective. Fig. 5 is a diagram showing the windshield from the rider's perspective.
[0011] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more of the features described in the embodiments may be arbitrarily combined. Furthermore, the same reference numerals are used for the same or similar components, and redundant explanations will be omitted.
[0012] 1 and 2 are diagrams showing the configuration of a saddle-riding vehicle 1 according to one aspect of the present invention. FIG. 1 is a side view of the saddle-riding vehicle 1, and FIG. 2 is a front view of the saddle-riding vehicle 1. Arrows X, Y, and Z indicate directions that are perpendicular to one another, with the X direction indicating the front-to-rear direction of the saddle-riding vehicle 1, the Y direction indicating the width direction (left-to-right direction) of the saddle-riding vehicle 1, and the Z direction indicating the up-and-down direction (height direction) of the saddle-riding vehicle 1. The left and right of the saddle-riding vehicle 1 are respectively the left and right when viewed in the direction of travel (direction of travel) of the saddle-riding vehicle 1. Furthermore, the front or rear in the front-to-rear direction of the saddle-riding vehicle 1 may sometimes be simply referred to as the front or rear, and the inside or outside in the width direction of the saddle-riding vehicle 1 may sometimes be simply referred to as the inside or outside.
[0013] The saddle-ride type vehicle 1 is a vehicle that is driven by a rider (operator). In this embodiment, the saddle-ride type vehicle 1 is embodied as a motorcycle having a front wheel FW and a rear wheel RW. However, the present invention is applicable to various types of saddle-ride type vehicles, including motorcycles.
[0014] The saddle-ride type vehicle 1 has a power unit 2 between a front wheel FW and a rear wheel RW. The power unit 2 includes, for example, an internal combustion engine drive source including an engine and a transmission that changes the speed of the engine output. However, the power unit 2 may also use a motor as a drive source. The output (driving force) of the power unit 2 is transmitted to the rear wheel RW.
[0015] The power unit 2 is supported by a body frame 3 that defines the body (skeleton). The body frame 3 includes a pair of left and right main frames that extend in the fore-and-aft direction. A head pipe 32 that rotatably supports a steering shaft that is turned by a handlebar 8 and a front suspension mechanism that supports a front wheel FW are provided at the front end of the main frames. A pair of left and right seat rails that extend rearward are provided at the rear end of the main frames. The seat rails support a seat 4 on which a rider sits (rides) and other components.
[0016] A steering shaft, which is rotatably supported by a fork support, is connected via a link to the steering shaft supported by the head pipe 32. The steering shaft is rotated by steering (operating) the handlebars 8, thereby steering the front wheel FW. In this way, the handlebars 8 function as a member for steering the saddle-ride type vehicle 1. The handlebars 8 are also provided with grips 81 that are gripped by the rider to operate the handlebars 8.
[0017] A meter unit MU is provided in the center of the front of the handlebar 8 (saddle riding type vehicle 1). The meter unit MU has the function of displaying various vehicle information related to the saddle riding type vehicle 1 to the rider. The meter unit MU includes a liquid crystal display panel that can display, for example, vehicle information such as a tachometer (engine RPM), a speedometer (travel speed), an indicator, a fuel gauge, and a clock. The meter unit MU is covered from the front of the saddle riding type vehicle 1 (front of the vehicle) by a meter cover MC (see FIG. 4).
[0018] A headlight unit 11 that irradiates light ahead of the saddle-riding type vehicle 1 is provided at the front of the saddle-riding type vehicle 1. The headlight unit 11 may be, for example, a symmetrical two-lens type headlight unit, an asymmetrical two-lens type headlight unit, a single-lens type headlight unit, or a triple-lens type headlight unit.
[0019] The front of the saddle-riding type vehicle 1 is covered by a front cowl 12, and the front sides of the saddle-riding type vehicle 1 are covered by a pair of left and right side cowls. A windshield 13 is provided above the front cowl 12 and in front of the handlebars 8. The windshield 13 functions as a windbreak that reduces wind pressure experienced by the rider while riding. The windshield 13 is made of a translucent material, for example, a transparent or translucent resin member.
[0020] A side mirror unit 15 is provided on the side of the windshield 13. In this embodiment, the side mirror unit 15 is attached to the handlebars 8 and reflects the view behind the saddle-type vehicle 1, thereby assisting the rider in visually recognizing what is behind.
[0021] Sensor units 16 are provided at various locations, including the front, rear, and sides, of the saddle riding type vehicle 1. The sensor units 16 include a camera, a light detection and ranging (LIDER), a millimeter-wave radar, and the like, and function as detection devices that detect the conditions around the saddle riding type vehicle 1. The sensor units 16 detect lanes (lines defining lanes) and landmarks that exist around the saddle riding type vehicle 1 as conditions around the saddle riding type vehicle 1. Lanes include, for example, the lane in which the vehicle is traveling, adjacent lanes adjacent to the traveling lane, and oncoming lanes of the traveling lane. Furthermore, landmarks include, for example, moving objects (such as a leading vehicle, an adjacent vehicle, a rear vehicle, or a pedestrian) that exist in front, behind, and on the sides of the saddle riding type vehicle 1, and obstacles that exist around the saddle riding type vehicle 1.
[0022] A light emitting unit 18 is provided on the front side of the saddle riding type vehicle 1. In this embodiment, the light emitting unit 18 is provided on the side of the saddle riding type vehicle 1, specifically, between the windshield 13 and the meter cover MC, but is not limited to this.
[0023] The light-emitting unit 18 includes, for example, a plurality of light-emitting elements (such as light-emitting diodes (LEDs)) and a lens. In this embodiment, the light-emitting unit 18 projects light from the plurality of light-emitting elements onto the windshield 13 via a lens, thereby displaying an image corresponding to the on (light-emitting) / off (non-light-emitting) state of each light-emitting element. In other words, the light-emitting unit 18 functions as a projector (projection device) using the windshield 13 provided in front of the saddle-riding type vehicle 1 as a screen. The light-emitting unit 18 also cooperates with the windshield 13 to realize a head-up display that provides various information related to the saddle-riding type vehicle 1 by superimposing it on the rider's field of vision (foreground). It is preferable that the angle of incidence (reflection) of the light projected from the light-emitting unit 18 onto the windshield 13 be an obtuse angle.
[0024] The saddle-riding type vehicle 1 has a control unit 20 that controls each part (overall) of the saddle-riding type vehicle 1. The control unit 20 includes a control unit (ECU) that includes a processor represented by a CPU, a storage device such as a semiconductor memory, an input / output interface with external devices, and a communication interface. The storage device stores programs executed by the processor and data used for processing by the processor. The control unit 20 may have multiple sets of processors, storage devices, interfaces, etc. corresponding to each function of the saddle-riding type vehicle 1.
[0025] Generally, the driving burden on the rider is increased when driving a saddle-riding vehicle 1. For example, a rider wearing a helmet has a narrow field of view around the saddle-riding vehicle 1, and visibility behind the saddle-riding vehicle 1 tends to be particularly reduced even though the saddle-riding vehicle 1 is provided with a side mirror unit 15. Therefore, there is a demand for a technology that allows the rider to recognize, for example, information about the situation around the saddle-riding vehicle 1 (for example, moving objects present around the saddle-riding vehicle 1, particularly moving objects present behind the saddle-riding vehicle 1) while still ensuring the rider's forward field of view.
[0026] Therefore, in this embodiment, as a driving assistance technology for reducing the driving burden on the rider, a head-up display is provided that displays (notifies) information about the situation around the saddle-riding type vehicle 1 by superimposing it on the rider's field of vision (foreground) in front of the rider. Such a head-up display is realized by the windshield 13 and the light-emitting unit 18 under the control of the control unit 20, as described above.
[0027] The head-up display realized in this embodiment will now be described. Fig. 3 is a diagram showing the front of the saddle-riding type vehicle 1 from the rider's viewpoint. Referring to Fig. 3, the handlebars 8 are present in the rider's field of vision, and the windshield 13 is present in front of the handlebars 8. Therefore, by projecting light from the light-emitting units 18 toward the windshield 13 provided in front of the handlebars 8 and causing the windshield 13 to function as a reflecting unit that reflects the light from the light-emitting units 18 toward the side of the meter unit MU, it is possible to provide the rider with information regarding the situation around the saddle-riding type vehicle 1. Note that in Fig. 1, the trajectory of light reflected by the windshield 13 (reflecting unit) is indicated by an arrow.
[0028] Here, it is conceivable to display, for example, an image corresponding to the situation around the saddle-riding type vehicle 1 on the windshield 13. However, in this case, the rider's attention may be drawn too much to the image displayed on the windshield 13, causing the rider to neglect to check what is ahead, which may not lead to a reduction in driving load. Therefore, in this embodiment, instead of displaying an image on the windshield 13, a portion of the windshield is illuminated to provide the rider with information about the situation around the saddle-riding type vehicle 1.
[0029] Specifically, as shown in FIG. 4 , in this embodiment, light is projected from the light-emitting unit 18 onto the windshield 13, causing a reflecting unit 13A, which is a portion of the windshield 13, to emit light. The reflecting unit 13A is an area (light-emitting area) that reflects the light projected from the light-emitting unit 18, and as shown in FIG. 4 , includes an edge portion of the windshield 13 in the vehicle width direction (Y direction) of the saddle-riding vehicle 1. As described above, in this embodiment, the reflecting unit 13A of the windshield 13 is set on the edge portion of the windshield 13, avoiding an area (e.g., the central area) that would obstruct the rider's forward visibility. This ensures the rider's forward visibility and provides information about the situation around the saddle-riding vehicle 1 without disrupting the rider's focus on the road ahead. Furthermore, third parties can see the light projected from the light-emitting unit 18 onto the windshield 13 (reflecting unit), improving the visibility of the saddle-riding vehicle 1. In Fig. 4, solid lines indicate light reflected by the reflecting portion 13A of the windshield 13 toward the rider, and dashed lines indicate light reflected by the reflecting portion 13A of the windshield 13 toward a third party. In this embodiment, a pair of left and right ends (two ends located in the left and right direction) of the windshield 13 are the reflecting portions 13A, but only one of the left and right edges of the windshield 13 may be the reflecting portion 13A. Fig. 4 is a diagram showing the windshield 13 provided in front of the saddle-ride type vehicle 1 from the rider's perspective. In order to show the entire windshield 13, the handlebars 8 and other components are omitted from Fig. 4.
[0030] 4, the reflective portion 13A of the windshield 13 is preferably located above the meter unit MU, which is provided in the center in front of the handlebars 8, in the vertical direction (Z direction) of the saddle-riding type vehicle 1. In other words, the reflective portion 13A of the windshield 13 should not overlap the meter unit MU. This makes it easy to distinguish between the reflective portion (light-emitting area) of the windshield 13 and the meter unit MU (the vehicle information displayed thereon), improving the visibility of the reflective portion of the windshield 13. This is useful at night when the rider's field of vision is narrower.
[0031] Similarly, from the viewpoint of visibility of the light-emitting area of the windshield 13, it is preferable that the reflecting portion 13A of the windshield 13 is located outside the meter unit MU provided in the center in front of the handlebars 8 in the vehicle width direction of the saddle-riding type vehicle 1, as shown in Fig. 4. This makes it easy to distinguish between the reflecting portion of the windshield 13 and the meter unit MU (the vehicle information displayed on it), improving the visibility of the light-emitting area of the windshield 13.
[0032] Furthermore, as shown in FIG. 5 , the reflective portion 13A of the windshield 13 may be located at the rear end of the windshield 13 in the fore-and-aft direction of the saddle-riding vehicle 1, as long as it is not in an area that obstructs the rider's forward visibility. By making the rear end of the windshield 13 a reflective portion, the rider's forward visibility can be ensured and information about the situation around the saddle-riding vehicle 1 can be communicated without disrupting the rider's concentration on the road ahead. While FIG. 5 shows a pair of left and right rear ends of the windshield 13 as reflective portions 13A, only one of the left and right rear ends of the windshield 13 may be reflective. FIG. 5 is a view showing the windshield 13 provided in front of the saddle-riding vehicle 1 from the rider's perspective. In order to show the entire windshield 13, the handlebars 8 and other components are omitted from FIG. 5 .
[0033] Examples of information about the situation around the saddle-riding vehicle 1 that is notified to the rider via the reflector 13A of the windshield 13 include moving objects in the vicinity of the saddle-riding vehicle 1, particularly a rear vehicle that is a moving object behind the saddle-riding vehicle 1. As described above, moving objects in the vicinity of the saddle-riding vehicle 1, including a rear vehicle, can be detected by the sensor units 16 provided in various parts of the saddle-riding vehicle 1. In this manner, the sensor units 16 can function as units that detect rear vehicles behind the saddle-riding vehicle 1. Therefore, in this embodiment, when the sensor unit 16 detects a rear vehicle, the control unit 20 controls the light-emitting unit 18 to project light onto the windshield 13 and cause the reflector 13A to emit light. In this manner, by controlling the light-emitting unit 18 based on the detection result of the sensor unit 16, it is possible to notify the rider that a rear vehicle is present (approaching) behind the saddle-riding vehicle 1 while ensuring the rider's forward visibility and without interfering with the rider's concentration on the road ahead.
[0034] Furthermore, in this embodiment, as described above, a pair of left and right edge portions (two edge portions located in the left-right direction) of the windshield 13 are made into the reflective portion 13A. Therefore, by independently controlling the light emission of the pair of left and right edge portions of the windshield 13, it is possible to notify the rider in more detail about a rear vehicle present behind the saddle riding type vehicle 1. For example, when the sensor unit 16 detects a rear vehicle present on the right rear side of the saddle riding type vehicle 1, the control unit 20 controls the light emitting portion 18 to emit light from the right edge portion of the two edge portions that make up the reflective portion 13A of the windshield 13. On the other hand, when the sensor unit 16 detects a rear vehicle present on the left rear side of the saddle riding type vehicle 1, the control unit 20 controls the light emitting portion 18 to emit light from the left edge portion of the two edge portions that make up the reflective portion 13A of the windshield 13. In this way, by illuminating the edge of the two reflective portions 13A of the windshield 13 on the side where a vehicle behind is located, it is possible to notify the driver on which side the vehicle behind is located (or which side it is approaching from).
[0035] Various patterns can be considered for the period during which the reflective portion 13A of the windshield 13 is illuminated. For example, the light emitting unit 18 may project light onto the windshield 13 so that the reflective portion 13A of the windshield 13 continuously emits light for a predetermined period of time. Alternatively, the light emitting unit 18 may project light onto the windshield 13 so that the reflective portion 13A of the windshield 13 intermittently emits light (blinks) for a predetermined period of time. This allows the rider to easily recognize that the reflective portion 13A of the windshield 13 is emitting light, reducing the possibility of overlooking it. Instead of causing the reflective portion 13A of the windshield 13 to emit light for a predetermined period of time, the reflective portion 13A of the windshield 13 may be illuminated while the sensor unit 16 is detecting moving objects present in the vicinity of the saddle-riding vehicle 1, including a vehicle behind.
[0036] <Summary of the embodiments> 1. The saddle-riding vehicle of the above-described embodiments is characterized in that, in a saddle-riding vehicle (e.g., 1) comprising a handlebar (e.g., 8) and a meter unit (e.g., MU) provided in the center in front of the handlebar, a light-emitting unit (e.g., 18) is provided on the side of the saddle-riding vehicle, and a reflecting unit (e.g., 13A) is provided in front of the handlebar and reflects light from the light-emitting unit toward the side of the meter unit.
[0037] According to this embodiment, the rider's forward visibility is ensured and information about the situation around the saddle-riding type vehicle can be communicated without disturbing the rider's concentration on the road ahead. In addition, third parties can see the light projected from the light-emitting unit onto the reflecting unit, improving the visibility of the saddle-riding type vehicle.
[0038] 2. The above-described saddle-type vehicle further includes a windshield (e.g., 13) provided in front of the handlebars (e.g., 8), and a meter cover that covers the meter unit (e.g., MU) from the front of the vehicle, wherein the reflecting portion (e.g., 13A) is provided on the windshield, and the light-emitting portion (e.g., 18) is provided between the windshield and the meter cover.
[0039] According to this embodiment, the windshield can be used as a light-emitting portion.
[0040] 3. In the above-described straddle-type vehicle, the reflecting portion (for example, 13A) is located above the meter unit in the up-down direction of the straddle-type vehicle (for example, 1).
[0041] According to this embodiment, it becomes easy to distinguish between the reflecting portion and the meter unit (the vehicle information displayed on the meter unit), and the visibility of the reflecting portion is improved.
[0042] 4. In the above-described straddle-type vehicle, the reflecting portion (e.g., 13A) is an edge portion of the windshield (e.g., 13) in the vehicle width direction of the straddle-type vehicle (e.g., 1).
[0043] According to this embodiment, it becomes easy to distinguish between the reflecting portion and the meter unit (the vehicle information displayed on the meter unit), and the visibility of the reflecting portion is improved.
[0044] 5. The above-described saddle-ride type vehicle further comprises a sensor unit (e.g., 16) that detects a moving object present behind the saddle-ride type vehicle (e.g., 1), and a control unit (e.g., 20) that controls the light-emitting unit based on the detection result of the sensor unit, wherein the control unit controls the light-emitting unit (e.g., 18) to project light onto the windshield (e.g., 13) and cause the reflecting unit (e.g., 13A) to emit light when the sensor unit detects the moving object.
[0045] According to this embodiment, the rider can be notified that a vehicle is present (approaching) behind the saddle-type vehicle while ensuring the rider's forward visibility and without disturbing the rider's concentration on the road ahead.
[0046] 6. In the above-described saddle-riding type vehicle, the control unit (e.g., 20) is characterized in that, when the sensor unit (e.g., 16) detects a moving object present at the right rear of the saddle-riding type vehicle (e.g., 1), the control unit (e.g., 18) controls the light-emitting unit (e.g., 13) to emit light from a right-side reflective portion of the reflective portions in the vehicle width direction of the saddle-riding type vehicle, and when the sensor unit detects a moving object present at the left rear of the saddle-riding type vehicle, the control unit (e.g., 20) controls the light-emitting unit (e.g., 18) to emit light from a left-side reflective portion of the reflective portions in the vehicle width direction of the saddle-riding type vehicle.
[0047] According to this embodiment, it is possible to notify whether the vehicle behind is on the left or right side (from which side the vehicle is approaching).
[0048] 7. In the above-described saddle-ride type vehicle, the light-emitting portion (e.g., 18) projects light onto the reflecting portion (e.g., 13A) so that the reflecting portion emits light continuously for a predetermined period of time.
[0049] According to this embodiment, the lidar can easily recognize that the reflecting portion is emitting light, reducing the possibility of overlooking it.
[0050] 8. In the above-described saddle-ride type vehicle, the light-emitting portion (e.g., 18) projects light onto the reflecting portion (e.g., 13A) so that the reflecting portion emits light intermittently for a predetermined period of time.
[0051] According to this embodiment, the lidar can easily recognize that the reflecting portion is emitting light, reducing the possibility of overlooking it.
[0052] 9. In the above-described straddle-type vehicle, the reflector (e.g., 13A) is provided at the rear end of the windshield (e.g., 13) in the fore-and-aft direction of the straddle-type vehicle (e.g., 1).
[0053] According to this embodiment, the rider's forward visibility is ensured, and information about the situation around the saddle-type vehicle can be communicated without disturbing the rider's concentration on what is ahead.
[0054] 10. In the above-described straddle-type vehicle, the windshield (for example, 13) is made of a light-transmitting material.
[0055] According to this embodiment, the windshield can be a screen.
[0056] 11. The projection device of the above-described embodiment is a projection device provided on a saddle-ride type vehicle (e.g., 1) that includes a handle (e.g., 8) and a meter unit (e.g., MU) provided in the center in front of the handle, characterized in that a light-emitting unit (e.g., 18) is provided on the side of the saddle-ride type vehicle, and a reflecting unit (e.g., 13A) is provided in front of the handle and reflects light from the light-emitting unit toward the side of the meter unit.
[0057] According to this embodiment, the rider's forward visibility is ensured and information about the situation around the saddle-riding type vehicle can be communicated without disturbing the rider's concentration on the road ahead. In addition, third parties can see the light projected from the light-emitting unit onto the reflecting unit, improving the visibility of the saddle-riding type vehicle.
[0058] The present invention is not limited to the above-described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the following claims are appended to apprise the public of the scope of the present invention.
[0059] 1: saddle-ride type vehicle 8: handlebars 13: windshield 13A: reflector 18: light-emitting unit 20: control unit
Claims
1. The handlebars and In a saddle-type vehicle, which includes a meter unit located in the center in front of the handle, A light-emitting part is provided on the side of the aforementioned saddle-type vehicle. A reflective section is provided in front of the handle and reflects the light from the light-emitting section toward the side of the meter unit, A windshield provided in front of the aforementioned handle, A meter cover that covers the aforementioned meter unit from the front of the vehicle, A sensor unit for detecting a moving object located behind the aforementioned saddle-type vehicle, A control unit controls the light-emitting unit based on the detection result of the sensor unit, It has, The reflective portion is provided on the windshield. The light-emitting part is provided between the windshield and the meter cover. The control unit controls the light-emitting unit so as to project light onto the windshield and cause the reflective unit to emit light when the sensor unit detects the moving object. When the sensor unit detects a moving object located to the right rear of the saddle-type vehicle, the light-emitting part is controlled to emit light from the rightmost reflective part of the reflective part in the width direction of the saddle-type vehicle. When the sensor unit detects a moving object located to the left rear of the saddle-type vehicle, the light-emitting part is controlled to emit light from the leftmost reflective part of the reflective part in the vehicle width direction of the saddle-type vehicle. A saddle-type vehicle characterized by its features.
2. The saddle-type vehicle according to claim 1, characterized in that the reflective portion is located on the upper edge of the windshield in the vertical direction of the saddle-type vehicle.
3. The reflective portion is the edge of the windshield in the vehicle width direction of the saddle-type vehicle. The saddle-type vehicle according to feature 1.
4. The saddle-type vehicle according to any one of claims 1 to 3, characterized in that the light-emitting part projects light onto the reflecting part so that the reflecting part emits light continuously for a predetermined time.
5. The saddle-type vehicle according to any one of claims 1 to 3, characterized in that the light-emitting part projects light onto the reflecting part so that the reflecting part emits light intermittently for a predetermined time.
6. The saddle-type vehicle according to claim 1, characterized in that the reflective portion is provided at the rear end of the windshield in the front-rear direction of the saddle-type vehicle.
7. The saddle-type vehicle according to claim 1, characterized in that the windshield is made of a light-transmitting material.
8. A projection device provided in a saddle-type vehicle comprising a handle and a meter unit located in the center in front of the handle, A light-emitting part is provided on the side of the aforementioned saddle-type vehicle. A reflective section is provided in front of the handle and reflects the light from the light-emitting section toward the side of the meter unit, A windshield provided in front of the aforementioned handle, A meter cover that covers the aforementioned meter unit from the front of the vehicle, A sensor unit for detecting a moving object located behind the aforementioned saddle-type vehicle, A control unit controls the light-emitting unit based on the detection result of the sensor unit, It has, The reflective portion is provided on the windshield. The light-emitting part is provided between the windshield and the meter cover. The control unit controls the light-emitting unit so as to project light onto the windshield and cause the reflective unit to emit light when the sensor unit detects the moving object. When the sensor unit detects a moving object located to the right rear of the saddle-type vehicle, the light-emitting part is controlled to emit light from the rightmost reflective part of the reflective part in the width direction of the saddle-type vehicle. When the sensor unit detects a moving object located to the left rear of the saddle-type vehicle, the light-emitting part is controlled to emit light from the leftmost reflective part of the reflective part in the vehicle width direction of the saddle-type vehicle. A projection device characterized by the following features.