JP2004074916A - Motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately detect that a rider M has sat down by a reflection type infrared sensor 65 regardless of the sitting position of the rider M. <P>SOLUTION: The infrared sensor 65 which detects changes in the energy density of receiving an infrared ray 69 by irradiating the infrared ray 69 (or a load cell 71 which detects that a load corresponding to weight of the rider M is applied on a rear cushion 43, or a strain detection sensor 81 which detects a detection part 77a on an operation member 75 has strained downward a predetermined amount) is provided. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a motorcycle having a configuration for detecting that an occupant is seated on a seat.
[0002]
[Prior art]
An automatic detection system having a structure for detecting that the occupant is seated on the seat for the reason of preventing the rear wheel (drive wheel) from rotating even when the throttle is operated while the occupant is not seated on the seat. A motorcycle exists as a prior art (for example, Japanese Patent Application Laid-Open No. H11-32428). The prior art will be briefly described as follows.
[0003]
That is, a hinge member having a vertically extending elongated hole is provided at a front portion of the seat bottom of the seat, and a hinge shaft penetrating the elongated hole is provided on the vehicle body frame. This allows the seat to swing up and down (openable and closable) about the hinge axis with respect to the body frame, and also allows the front portion of the seat to move up and down along the slot. It is.
[0004]
Further, the body frame is provided with a spring for urging the seat upward, and in the vicinity of the hinge shaft in the body frame, the front portion of the seat opposes the urging force of the spring. A movement detection sensor is provided for detecting a predetermined amount of downward movement along the elongated hole. Here, when a load according to the weight of the occupant is applied to the seat, the front portion of the seat moves by a predetermined amount or more while resisting the urging force of the spring.
[0005]
Accordingly, when the occupant sits on the seat, the movement detection sensor detects that the front portion of the seat has moved downward by the predetermined amount along the elongated hole. In other words, the movement detection sensor detects that the occupant is seated on the seat.
[0006]
[Problems to be solved by the invention]
By the way, since the hinge member is provided at a front portion of the seat bottom and the movement detection sensor is provided near the hinge shaft in the vehicle body frame, for example, an occupant's seating position is When it is on the rear side, even if the occupant sits on the seat, the front part of the seat cannot move downward by the predetermined amount while resisting the urging force of the spring, and the occupant is detected by the movement detection sensor. May not be able to properly detect that the user is seated on the seat.
[0007]
Therefore, it is a main object of the present invention to provide a motorcycle that can appropriately detect that an occupant is seated on the seat regardless of the occupant's seating position.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, a rotatable front wheel, a rotatable rear wheel provided behind the front wheel, and a seat provided near the upper side of the rear wheel and capable of seating an occupant. In a motorcycle comprising:
An occupant detection sensor for detecting that the occupant is seated on the seat using infrared rays is provided.
[0009]
Here, the “rear wheel” includes a plurality of rear wheels arranged side by side in addition to a general single rear wheel. The "occupant detection sensor" includes an infrared sensor that detects a change in energy density of infrared light received by irradiating infrared light, and a change in energy density of weak infrared light emitted from the periphery of the seat. Pyroelectric sensor.
[0010]
According to the first aspect of the present invention, a change in the energy density of the received infrared rays is detected by irradiating infrared rays by the infrared sensor serving as the occupant detection sensor. Alternatively, a change in the energy density of weak infrared rays emitted from around the seat is detected by the pyroelectric sensor serving as the occupant detection sensor. Accordingly, when the occupant detection sensor detects that a change in the predetermined energy density has occurred, the occupant detection sensor detects that the occupant is seated on the seat.
[0011]
According to the second aspect of the present invention, in addition to the first aspect of the present invention, there is provided a rotary drive unit for rotating the rear wheel.
The infrared sensor is electrically connected, and comprises control means for controlling the rotation driving means,
Only when a detection signal of the occupant detection sensor is input to the control means, the control means controls the rotation drive means to rotate the rear wheel.
[0012]
According to the second aspect of the present invention, in addition to the action of the first aspect of the present invention, when the occupant detection sensor detects that a predetermined change has occurred, the occupant detection sensor detects the change. It is detected that the occupant is seated on the seat, and a detection signal of the occupant detection sensor is input to the control means.
[0013]
Further, only when a detection signal of the occupant detection sensor is input to the control means, the control means controls the rotation driving means to rotate the rear wheel, so that the occupant can Even if the throttle is operated without being seated on the seat, the rear wheel does not rotate.
[0014]
In the invention according to claim 3, a vehicle body frame, a rotatable front wheel provided at a front portion of the vehicle body frame, and a rear arm provided on the vehicle body frame so as to be vertically swingable, A rear wheel rotatably driven provided at a rear portion of the rear arm, a seat provided on the vehicle body frame and capable of seating an occupant, and a foot mounting member provided on the vehicle body frame and capable of mounting an occupant's foot, A motorcycle having an upper end connected to the vehicle body frame and a lower end connected to the rear arm, the rear cushion being configured to buffer swing of the rear arm with respect to the vehicle body frame;
The rear cushion is provided at a portion connecting the upper end portion of the rear cushion and the vehicle body frame, or at a portion connecting the lower end portion of the rear cushion and the rear arm, and a load corresponding to a weight of an occupant is applied to the rear cushion. It is characterized by comprising a load detection sensor for detecting.
[0015]
Here, the “rear wheel” includes a plurality of rear wheels arranged side by side in addition to a general single rear wheel.
[0016]
According to a third aspect of the present invention, the rear arm is connected to the vehicle body frame so as to be vertically swingable, an upper end of the rear cushion is connected to the vehicle body frame, and a lower end of the rear cushion is connected to the vehicle body frame. Since the vehicle is connected to the rear arm, when the occupant sits on the seat, a load corresponding to the occupant's weight acts on the rear cushion regardless of the occupant's seating position. Further, since the foot placement member is provided on the vehicle body frame, the rider stands on the motorcycle or rides on the mid-back while the occupant places the foot on the foot placement member (incomplete seating). ), A load corresponding to the weight of the occupant acts on the rear cushion.
[0017]
When the load detection sensor detects that a load corresponding to the weight of the occupant has acted on the rear cushion, the load detection sensor detects that the occupant is seated on the seat.
[0018]
According to the invention described in claim 4, in addition to the matters specified in the invention described in claim 3, a rotation driving unit that rotationally drives the rear wheel;
The load detection sensor is electrically connected, and comprises control means for controlling the rotation driving means,
Only when a detection signal of the load detection sensor is input to the control means, the control means controls the rotation drive means to rotate the rear wheel.
[0019]
According to the fourth aspect of the present invention, in addition to the action of the third aspect of the present invention, the load detection sensor detects that a load corresponding to the weight of the occupant has acted on the rear cushion. Then, the load detection sensor detects that the occupant is seated on the seat, and the detection signal of the load detection sensor is input to the control unit.
[0020]
Further, only when the detection signal of the load detection sensor is input to the control means, the control means controls the rotation driving means to rotate the rear wheel, so that the occupant can The rear wheel does not rotate even if the throttle is operated in a state in which the driver is not seated on the seat (excluding the standing state and the mid-seat state).
[0021]
According to the invention as set forth in claim 5, a rotatable front wheel, a rotatable rear wheel provided behind the front wheel, and a seat provided near the upper side of the rear wheel and capable of seating an occupant. In a motorcycle comprising:
The sheet is
A seat bottom provided near the upper side of the rear wheel;
The seat bottom is disposed from the vicinity of the front end to the vicinity of the rear end thereof, and has a detected portion. When a load corresponding to the weight of the occupant is applied from above to an arbitrary position on the upper surface, the detected portion is moved downward. An actuating member configured to bend over a predetermined amount,
A deflection detection sensor that detects that the detected portion of the operating member has bent downward by a predetermined amount;
An elastically deformable seat cushion is provided on the seat bottom so as to cover the operating member from above,
And a seat cover covering the seat cushion.
[0022]
Here, the “rear wheel” includes a plurality of rear wheels arranged side by side in addition to a general single rear wheel.
[0023]
According to the fifth aspect of the present invention, the operating member is provided from the vicinity of the front end to the vicinity of the rear end of the seat bottom, and the operating member is provided at an arbitrary position on the upper surface to reduce the weight of the occupant from above. The detected portion is configured to bend by a predetermined amount or more when a corresponding load is applied. Therefore, when the occupant sits on the seat, a load corresponding to the weight of the occupant acts via the seat cushion, and the occupant is seated. Regardless of the position, the detected portion of the operating member bends downward by a predetermined amount or more. Then, when the deflection detection sensor detects that the detected portion of the operating member is bent downward by a predetermined amount, the deflection detection sensor detects that the occupant is seated on the seat. is there.
[0024]
According to a sixth aspect of the present invention, in addition to the specific features of the fifth aspect, at least a sensor body of the deflection detection sensor is embedded in the seat bottom.
[0025]
According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, at least the sensor main body of the flexure detection sensor is embedded in the seat bottom, so that the occupant can use Even when sitting on the seat, a load corresponding to the weight of the occupant does not act on the sensor main body.
[0026]
In the invention according to claim 7, in addition to the invention-specifying items according to claim 5 or 6, a rotation driving unit that rotationally drives the rear wheel;
The deflection detection sensor is electrically connected, and comprises control means for controlling the rotation driving means,
Only when a detection signal of the deflection detection sensor is input to the control means, the control means can control the rotation driving means so as to rotate the rear wheel.
[0027]
According to the seventh aspect of the present invention, in addition to the effect of the fifth or sixth aspect of the present invention, the detected portion of the operating member is downwardly moved by a predetermined amount by the bending detection sensor. When the flexure is detected, the flexure detection sensor detects that the occupant is seated on the seat, and a detection signal of the flexure detection sensor is input to the control unit.
[0028]
In addition, only when the detection signal of the deflection detection sensor is input to the control means, the control means controls the rotational drive means to rotate the rear wheel, so that the occupant can Even if the throttle is operated without being seated on the seat, the rear wheel does not rotate.
[0029]
According to the invention described in claim 8, in addition to the invention-specifying matter described in any one of claims 2, 5, and 7, the rotation driving unit is a rotating electric machine device. It is characterized by being.
[0030]
According to the eighth aspect of the present invention, the same operation as that of the second aspect of the present invention is achieved.
[0031]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a left side view of a motorcycle according to an embodiment of the present invention, and FIG. 2 is provided with a configuration for detecting that an occupant sits on a seat at a connection portion between a rear cushion and a rear support portion. FIG. 3 is a diagram showing an embodiment provided with a configuration for detecting that an occupant is seated on a seat.
[0032]
Here, “front” is the left in FIGS. 1 to 3, “rear” is the right in FIGS. 1 to 3, and “left” is the left in FIGS. 1 to 3. The front facing the paper surface, “right” is the back surface facing the paper surface in FIGS. 1 to 3, “top” is the upper surface in FIGS. 1 to 3, and “lower” In FIG. 1 to FIG.
[0033]
As shown in FIG. 1, a motorcycle 1 according to an embodiment of the present invention is based on a body frame 3, and the body frame 3 is provided with a main support 5 and a front side of the main support 5. It comprises a head pipe (front support) 7 and a rear support 9 integrally formed on the rear side of the main support 5.
[0034]
A rotatable steering shaft 11 is provided on the head pipe 7 of the body frame 3, and a handle 13 is integrally provided above the steering shaft 11. Grips (only the left grip is shown) 15 are provided at both ends of the handle 13, and a right grip 15 (not shown) is a throttle grip that can be operated with a throttle. A brake lever 17 is provided. A front fork 19 is provided below the steering shaft 11, and the front fork 19 is provided with a rotatable front wheel 21.
[0035]
A rear arm 23 extending rearward is provided at a rear portion of the main support portion 5 of the body frame 3 so as to be vertically swingable via a swing shaft 25, and a rear portion of the rear arm 23 (behind the front wheel 21). Is provided with a rear wheel 27 that can be driven to rotate. An electric motor 29 for rotating and driving the rear wheel 27 is provided at an appropriate position of the rear arm 23, and a controller 31 for controlling the electric motor 29 is provided at the center of the rear arm 23.
[0036]
A battery case 35 for holding a battery 33 is provided on the rear support portion 9 of the body frame 3, and is located above the rear support portion 9 of the body frame 3 (in other words, near the upper side of the rear wheel 27 of the rear support portion 9). A seat 37 on which the occupant M can sit is provided so as to be able to swing up and down via a swing shaft 39. Here, the opening side of the battery case 35 can be opened and closed by swinging the seat 37 up and down around the swing shaft 39. The main support 9 is provided with a pair of left and right pedals 41 on which the occupant M places his / her feet.
[0037]
A rear cushion 43 is interposed between the rear support portion 9 and the rear arm 23 of the vehicle body frame 3 to buffer the swing of the rear arm 23 with respect to the rear support portion 9.
[0038]
That is, as is well known, the rear cushion 43 includes a coil spring 45, a damper 47 for suppressing the resilience of the coil spring 45, an upper ring 49 fixed on an upper portion of the damper 47, And a lower ring 51 fixed to a lower part of the lower ring 47. An upper bracket 53 is provided on the rear support portion 9 of the vehicle body frame 3, and an upper ring 49 is connected to the upper bracket 53 via a connection bolt 55 and a rubber tube 57. A lower bracket 59 is provided on the rear arm 23, and a lower ring 51 is connected to the lower bracket 59 via a connection bolt 61 and a rubber tube 63.
[0039]
Next, a configuration (seating detection configuration) for detecting that the occupant M is seated on the seat 37, which is a main part of the embodiment of the present invention, and an operation and an effect of the motorcycle 1 including the seating detection configuration will be described. I do.
[0040]
The first seating detection configuration is as follows.
[0041]
That is, a reflection type infrared sensor 65 is provided near the lower side of the handle 13 via the mounting bracket 67, and the reflection type infrared sensor 65 irradiates the infrared ray 69 to reflect and receive the infrared ray. A change in the energy density at 69 is detected. Here, the infrared ray 69 is irradiated from the reflective infrared sensor 65 toward a position slightly higher than the upper surface of the sheet 37, but the irradiation direction of the infrared ray 69 may be changed as appropriate. (Infrared rays 69 whose irradiation direction has been changed are indicated by 69 'in FIG. 1), and the mounting position of the reflection type infrared sensor 65 may be appropriately changed.
[0042]
The reflection type infrared sensor 65 is electrically connected to the controller 31 and controls the electric motor 29 by the controller 31 only when the detection signal of the reflection type infrared sensor 65 is input to the controller 31. The wheel 27 is configured to be driven to rotate.
[0043]
The operation of the motorcycle 1 having the first seating detection configuration is as follows.
[0044]
That is, by irradiating the infrared ray 69 with the reflective infrared sensor 65, a change in the energy density of the infrared ray 69 reflected and received is detected. Accordingly, when the reflection type infrared sensor 65 detects that a change in the predetermined energy density has occurred, the reflection type infrared sensor 65 detects that the occupant M is sitting on the seat 37, and the reflection type infrared sensor 65 The detection signal is input to the controller 31. Here, since the infrared rays 69 are emitted from the reflective infrared sensor 65 toward a position slightly higher than the upper surface of the seat 37, the occupant M may be seated on the seat 37 regardless of the posture of the occupant M. Is detected.
[0045]
Further, only when the detection signal of the reflection type infrared sensor 65 is input to the controller 31, the controller 31 controls the electric motor 29 to rotate and drive the rear wheel 27. The rear wheel 27 will not be driven to rotate even if the throttle is operated without being seated on the vehicle.
[0046]
Therefore, according to the motorcycle 1 provided with the first seating detection configuration, by irradiating the infrared rays 69 with the reflective infrared sensor 65, the change in the energy density of the reflected and received infrared rays 69 is detected. Since it is detected that the occupant M is seated on the seat 37, for example, even if the occupant M is seated at a biased position at the rear of the seat 37, the occupant M is The fact that the user sits on the seat 37 can be appropriately detected by the reflection type infrared sensor 65. For the same reason, it is possible to detect that the occupant M is seated on the seat 37 regardless of the weight of the occupant M.
[0047]
Further, regardless of the posture of the occupant M, the fact that the occupant M is seated on the seat 37 is detected, so that the detection accuracy of the reflective infrared sensor 65 is improved.
[0048]
Further, even if the occupant M does not sit on the seat 37, the rear wheel 27 does not rotate even if the throttle is operated, so that the convenience of handling the motorcycle 1 is improved.
[0049]
Note that a transmissive infrared sensor may be used instead of the reflective infrared sensor 65, a pyroelectric sensor that detects a change in the energy density of weak infrared rays radiated from the periphery of the sheet 37 may be used, or an appropriate change may be made. it can.
[0050]
The second seating detection configuration is as follows.
[0051]
That is, as shown in FIG. 2, a load cell 71 is provided between the upper ring 53 and the rubber tube 57 in the rear cushion 43 (in other words, a portion connecting the rear cushion 43 and the rear support portion 9 in the body frame 3). The load cell 71 detects that a load corresponding to the weight of the occupant M has acted on the rear cushion 43. The position where the load cell 71 is attached can be changed as appropriate between the upper ring 53 and the rubber tube 57, between the lower ring 59 and the rubber tube 63, and the like.
[0052]
The load cell 71 is electrically connected to the controller 31 and controls the electric motor 29 to rotate the rear wheel 27 by the controller 31 only when a detection signal of the load cell 71 is input to the controller 31. It is configured as follows.
[0053]
The operation of the motorcycle 1 having the second seating detection configuration is as follows.
[0054]
The rear arm 23 is connected to the main support portion 5 of the body frame 3 so as to swing vertically, the upper end of the rear cushion 43 is connected to the rear support portion 9 of the body frame 3, and the lower end of the rear cushion 43 is connected to the rear arm 23. Therefore, when the occupant M sits on the seat 37, a load corresponding to the weight of the occupant M is applied to the rear cushion 43 regardless of the seating position of the occupant M. Further, since the pedal 41 is provided on the main support portion 5 of the body frame 3, the rider M stands on the motorcycle 1 or rides on the mid-seat (incomplete seating) with the occupant M resting his foot on the pedal 41. ), A load corresponding to the weight of the occupant M acts on the rear cushion 43.
[0055]
When the load cell 71 detects that a load corresponding to the weight of the occupant M has acted on the rear cushion 43, the load cell 71 detects that the occupant M is seated on the seat 37. Input to the controller 31.
[0056]
Further, only when the detection signal of the load cell 71 is input to the controller 31, the controller 71 controls the electric motor 29 to rotate the rear wheel 27, so that the occupant M sits on the seat 37. The rear wheel 27 is not driven to rotate even if the throttle is operated in a state in which the rear wheel 27 is not in a state where the vehicle is not in a standing state (except in a standing state and a mid-ride state).
[0057]
Therefore, according to the motorcycle 1 having the second seating detection configuration, when the occupant M sits on the seat 37, a load corresponding to the weight of the occupant is applied to the rear cushion 43 regardless of the seating position of the occupant M. For example, even if the occupant M is seated in a biased position behind the seat 37, the load cell 71 appropriately detects that the occupant M is seated on the seat 37 regardless of the seating position of the occupant M. can do.
[0058]
Further, even when the occupant M stands on the motorcycle 1 or rides on the mid-seat while the foot is placed on the pedal 41, a load corresponding to the weight of the occupant M acts on the rear cushion 43. In addition to sitting on the seat 37, the load cell 71 can appropriately detect that the occupant M stands or sits on the center.
[0059]
Further, even if the occupant M is not seated on the seat 37 (except in the standing state and the mid-seat state), the rear wheel 27 does not rotate even if the throttle is operated. improves.
[0060]
In addition, an appropriate change can be made, such as using a magnetostrictive sensor including a ferromagnetic material instead of the load cell 71.
[0061]
The third seating detection configuration is as follows.
[0062]
That is, as shown in FIG. 3, a seat bottom 73 constituting the base of the seat 37 is provided on the rear support portion 9 of the body frame 3 so as to be able to swing vertically through the swing shaft 39, An operating member 75 is arranged above the seat bottom 73 from near the front end to near the rear end of the seat bottom 73. The operating member 75 includes two first plates 77 and a second plate 79. The rear end of the first plate 77 is integrally attached to the seat bottom 73. The front end is integrally attached to the middle part of the first plate 77. The rear end of the second plate 79 is in contact with the seat bottom 73, and the first plate 77 and the second plate 79 are positioned in the left-right direction with respect to the seat bottom 73 by appropriate means.
[0063]
The first plate 77 has a detected portion 77a on the front end side, and the detected portion 77a is formed by a U-shaped notch. Here, when a load corresponding to the weight of the occupant M is applied from above to an arbitrary position on the upper surface of the operating member 75, the shape and the like of the first plate 77 and the like are set such that the detected portion 79a is bent downward by a predetermined amount or more. The shape and the like of the two plates 79 are configured.
[0064]
In the seat bottom 73, a sensor main body 83 of a deflection detection sensor 81 for detecting that the detected portion 79a has bent by a predetermined amount is embedded. The deflection detecting sensor 81 is electrically connected to the controller 31 and controls the electric motor 29 by the controller 31 to control the rear wheel 27 only when a detection signal of the bending detecting sensor 81 is input to the controller 31. Is driven to rotate. Note that the deflection detection sensor 81 is a limit switch having a detection lever 85, but may be a proximity switch or a magnetostrictive sensor.
[0065]
An elastically deformable seat cushion 87 is provided on the seat bottom 73 so as to cover the operating member 75 from above, and a seat skin 89 covering the seat cushion 87 is attached to the lower edge of the seat bottom 73. ing.
[0066]
The operation of the motorcycle 1 having the third seating detection configuration is as follows.
[0067]
An operating member 75 is provided from the vicinity of the front end to the vicinity of the rear end of the seat bottom 73. When a load corresponding to the weight of the occupant M is applied from above to an arbitrary position on the upper surface of the operating member 75, the first plate 77 When the occupant M sits on the seat 37, a load corresponding to the weight of the occupant M acts via the seat cushion 87 because the detected portion 77a is bent to a predetermined amount or more. Regardless, the detected portion 77a of the first plate 77 bends downward by a predetermined amount or more. Then, when it is detected by the deflection detection sensor 81 that the detected portion 77a of the first plate 77 has bent downward by a predetermined amount, the deflection detection sensor 81 detects that the occupant M is seated on the seat 37, A detection signal of the deflection detection sensor 81 is input to the controller 31.
[0068]
Further, since the sensor main body 83 of the deflection detection sensor 81 is embedded in the seat bottom 73, even when the occupant M sits on the seat 37, a load corresponding to the weight of the occupant M does not act on the sensor main body 83. .
[0069]
Further, the controller 31 controls the electric motor 29 to rotate and drive the rear wheel 27 only when the detection signal of the deflection detection sensor 81 is input to the controller 31. Even if the throttle is operated while not sitting, the rear wheel 37 does not rotate.
[0070]
Therefore, according to the motorcycle 1 having the third seating detection configuration, when the occupant M sits on the seat 37, a load corresponding to the weight of the occupant M acts via the seat cushion 87, and the occupant M's seating position Regardless of the above, since the detected portion 77a of the first plate 77 bends downward by a predetermined amount or more, for example, even if the occupant M is seated at a biased position at the rear of the seat 37, the seating position of the occupant M Regardless of this, the deflection detection sensor 81 can appropriately detect that the occupant M is sitting on the seat 37.
[0071]
Further, even when the occupant M is seated on the seat 37, a load corresponding to the weight of the occupant M does not act on the sensor main body 83 of the deflection detection sensor 81. By preventing the deflection, the life of the bending detection sensor 81 can be improved.
[0072]
Further, even if the occupant M is not seated on the seat 37 and the throttle is operated, the rear wheel 27 is not driven to rotate, so that the convenience of handling the motorcycle 1 is improved.
[0073]
The present invention is not limited to the description of the above-described embodiment of the present invention. For example, instead of the single rear wheel 27, appropriate changes are made, such as changing to a plurality of rear wheels arranged side by side. Thus, the present invention can be implemented in various other modes.
[0074]
【The invention's effect】
According to the invention described in claim 1, the occupant detection sensor detects that a change in the predetermined energy density has occurred, thereby detecting that the occupant is seated on the seat. Even if the occupant is seated at a biased position at the rear of the seat, the occupant detection sensor can appropriately detect that the occupant is seated on the seat regardless of the seating position of the occupant.
[0075]
Further, for the same reason, it is possible to detect that the occupant is seated on the seat regardless of the weight of the occupant.
[0076]
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the rear wheel does not rotate even if the occupant operates the throttle while not sitting on the seat. Therefore, the convenience of handling the motorcycle is improved.
[0077]
According to the invention as set forth in claim 3, when the occupant sits on the seat, a load corresponding to the occupant's weight acts on the rear cushion regardless of the occupant's seating position. Even if the seat is seated at a biased position at the rear part of the seat, the load detection sensor can appropriately detect that the occupant is seated on the seat regardless of the seating position of the occupant.
[0078]
Further, even when the occupant stands on the motorcycle or rides on the mid-seat under a state where the occupant places his / her foot on the foot rest member, a load corresponding to the occupant's weight acts on the rear cushion. In addition to being seated on the seat, the load detection sensor can appropriately detect that the occupant stands or sits on the lower back.
[0079]
According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, in addition to the effects of the invention described in claim 3, the occupant operates the throttle in a state where the occupant is not seated on the seat (excluding the standing state and the mid-seat state). Also, since the rear wheel is not driven to rotate, the convenience of handling the motorcycle is improved.
[0080]
According to the invention as set forth in claim 5, when the occupant sits on the seat, a load corresponding to the weight of the occupant acts via the seat cushion, and regardless of the occupant's seating position, Because the detected portion bends downward by a predetermined amount or more, for example, even if the occupant is seated in a biased position at the rear of the seat, the occupant sits on the seat regardless of the seating position of the occupant. This can be appropriately detected by the deflection detection sensor.
[0081]
According to the invention as set forth in claim 6, even if the occupant sits on the seat, a load corresponding to the weight of the occupant does not act on the sensor main body. And the life of the deflection detection sensor can be improved.
[0082]
According to the invention described in claim 7, in addition to the effects of the invention described in claim 5 or 6, the rear wheel is rotationally driven even if the occupant operates the throttle while not sitting on the seat. Since the operation is not performed, the convenience of handling the motorcycle is improved.
[0083]
According to the invention described in claim 8, the same effect as the invention described in any one of claims 2, 4, and 7 can be obtained.
[Brief description of the drawings]
FIG. 1 is a left side view of a motorcycle according to an embodiment of the present invention.
FIG. 2 is a diagram showing a mode provided with a configuration for detecting that an occupant is seated on a seat at a connection portion between a rear cushion and a rear support portion.
FIG. 3 is a diagram showing an embodiment provided with a configuration for detecting that an occupant is seated on a seat.
[Explanation of symbols]
1 motorcycle
3 Body frame
21 Front wheel
23 Rear arm
27 rear wheel
29 Electric motor
31 Controller
37 sheets
41 pedal
43 Rear cushion
65 Infrared sensor
71 load cell
73 seat bottom
75 Working member
77 1st plate
79 2nd plate
81 Deflection detection sensor
83 Sensor body
87 seat cushion
89 seat skin

Claims (8)

In a motorcycle including a rotatable front wheel, a rotatable rear wheel provided behind the front wheel, and a seat provided near the upper side of the rear wheel and capable of seating an occupant,
A motorcycle comprising an occupant detection sensor for detecting that an occupant is seated on the seat using infrared rays. Rotation driving means for driving the rear wheel to rotate,
The infrared sensor is electrically connected, and comprises control means for controlling the rotation driving means,
The control means controls the rotation drive means to rotate the rear wheel only when a detection signal of the occupant detection sensor is input to the control means. 2. The motorcycle according to 1. A body frame, a rotatable front wheel provided at a front portion of the body frame, a rear arm provided to be swingable in the vertical direction on the body frame, and a rotatable rear provided at a rear portion of the rear arm. A wheel, a seat provided on the vehicle body frame, on which an occupant can sit, a foot mounting member provided on the vehicle body frame, on which an occupant's foot can be mounted, and an upper end connected to the vehicle body frame and a lower end A motorcycle connected to the rear arm and having a rear cushion that buffers the swing of the rear arm with respect to the body frame;
The rear cushion is provided at a portion connecting the upper end portion of the rear cushion and the vehicle body frame, or at a portion connecting the lower end portion of the rear cushion and the rear arm, and a load corresponding to the weight of an occupant is applied to the rear cushion. A motorcycle comprising a load detection sensor for detecting. Rotation driving means for driving the rear wheel to rotate,
The load detection sensor is electrically connected, and comprises control means for controlling the rotation driving means,
The control means controls the rotation drive means to rotate the rear wheel only when a detection signal of the load detection sensor is input to the control means. The motorcycle according to 3. In a motorcycle including a rotatable front wheel, a rotatable rear wheel provided behind the front wheel, and a seat provided near the upper side of the rear wheel and capable of seating an occupant,
The sheet is
A seat bottom provided near the upper side of the rear wheel;
The seat bottom is disposed from the vicinity of the front end to the vicinity of the rear end thereof, and has a detected portion. When a load corresponding to the weight of the occupant is applied from above to an arbitrary position on the upper surface, the detected portion is moved downward. An actuating member configured to bend over a predetermined amount,
A deflection detection sensor that detects that the detected portion of the operating member has bent downward by a predetermined amount;
An elastically deformable seat cushion is provided on the seat bottom so as to cover the operating member from above,
A motorcycle comprising a seat cover covering the seat cushion. The motorcycle according to claim 5, wherein at least a sensor body of the deflection detection sensor is embedded in the seat bottom. Rotation driving means for driving the rear wheel to rotate,
The deflection detection sensor is electrically connected, and comprises control means for controlling the rotation driving means,
The rotation control means is configured to be able to control the rotation driving means so as to rotate the rear wheel by the control means only when a detection signal of the deflection detection sensor is input to the control means. The motorcycle according to claim 5 or claim 6. The motorcycle according to any one of claims 2, 4, and 7, wherein the rotation drive unit is a rotating electrical machine.

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