JP6100634B2 - Seating detection device - Google Patents

Description

  The present invention relates to a seating detection device, and more particularly to a seating detection device that detects whether an occupant is seated on a seat of a motorcycle.

  2. Description of the Related Art Conventionally, a seating detection device that detects whether or not an occupant is seated on a seat has been known for use in control of an idle stop of a vehicle, airbag deployment, and the like.

  Patent Document 1 discloses a seating detection device provided on a seat of a saddle riding type motorcycle. In this seating detection device, an on / off switch is provided between the seat cushion portion and the seat bottom plate, and the seating state is detected when the switch is turned on by the seating load transmitted through the cushion portion. .

  Patent Document 2 discloses a seating detection device provided on a seat of a four-wheeled vehicle having a passenger compartment. In this seating detection device, a pressure-sensitive sensor consisting of a strain gauge is incorporated in the rail part that supports the entire seat so that it can slide back and forth with respect to the floor in the passenger compartment, and the seating state is detected based on the output of this pressure-sensitive sensor. Is configured to do.

JP 2012-176720 A JP 2004-114986 A

  However, in the seating detection apparatus described in Patent Document 1, the pressure-sensitive on / off switch is expensive, and the sensor structure is complicated because the sensor is disposed between the cushion and the bottom plate of the seat, which increases the number of manufacturing steps. There was a problem of increasing.

  In addition, the seating detection device described in Patent Document 2 has a structure in which a strain sensor is incorporated into a part of a seat slide mechanism, and thus is usually difficult to apply to a motorcycle seat without such a mechanism. There was a problem.

  An object of the present invention is to solve the above-described problems of the prior art and to provide a seating detection device capable of improving the seating state detection accuracy without complicating the seat structure.

  In order to achieve the above object, the present invention detects a load applied to a seat (12) comprising a seat bottom plate (80) and a cushion member (12a) attached to the seat bottom plate (80) by a sensor (51). In a seating detection device (S) for a motorcycle that detects the seating state of an occupant, a sensor mounting member (40) that holds the sensor (51) and is fixed to the vehicle body side, and the seat A pressing protrusion (81) protruding downward from the bottom plate (80), and when a load is applied to the sheet (12), the pressing protrusion (81) presses the sensor mounting member (40), A first feature is that the sensor (51) detects the amount of deformation of the sensor mounting member (40) due to pressing.

  A second feature is that a seat lock mechanism (70) for holding the seat (12) toward the vehicle body is attached to the sensor attachment member (40).

  A third feature is that the sensor (51) is disposed on the upper surface of the sensor mounting member (40), and the seat lock mechanism (70) is mounted on the lower surface of the sensor mounting member (40).

  The sensor mounting member (40) supports a portion that is deformed by being pressed by the pressing member (81) and a seat base (61) that receives the load of the seat (12) without passing through a sensor from below. There is a fourth feature in that a portion to be included is included.

  The seat (12) is supported by a pair of seat stays (13) in the vehicle width direction directed in the vehicle longitudinal direction, and the sensor mounting member (40) is bridged between the seat stays (13). It is a single plate-like member fixed so as to be passed, and the sensor (51) is attached to a flat plate portion (48) provided at the center in the vehicle width direction of the sensor attachment member (40). There are features.

  A sixth feature is that the flat plate portion (48) is provided with an elastic member (50) in contact with the pressing protrusion (81).

  A hook (83) that engages with the seat lock mechanism (70) is provided on the lower surface of the seat bottom plate (80). When the seat (12) is attached to a vehicle body, the hook (80) The seventh feature is that the pressing protrusion (81) is set to abut against the elastic member (50) before the lower end reaches the bottom (70a) of the seat lock mechanism (70). is there.

  The pressing protrusion (81) has an eighth feature in that the cushion member (12a) of the seat (12) is provided at a position corresponding to the thickest portion.

  Further, the elastic member (50) is a cylindrical sensor pressing rubber, and the pressing protrusion (81) is formed with a side surface holding portion (81a) that contacts the rear side surface of the sensor pressing rubber (50). There is a ninth feature.

  According to the first feature, the sensor mounting member that holds the sensor and is fixed to the vehicle body side, and a pressing protrusion that protrudes downward from the seat bottom plate are provided. When a load is applied to the seat, the pressing protrusion is Since the sensor mounting member is pressed and the deformation amount of the sensor mounting member due to the pressing is detected by the sensor, only the pressing protrusion is required on the seat side, and the cushion member, the seat bottom plate, It is possible to avoid the sheet structure from becoming complicated as in the configuration in which the sensor is disposed between the two. Similarly, when making a vehicle with a sensor and a vehicle body without a sensor, there is no need to make two types of seats, and the sensor part can be made separately depending on whether or not it is attached to the vehicle body, thus increasing production efficiency. It becomes possible.

  In addition, since the sensor mounting member that supports the sensor is pressed instead of directly pressing the sensor, the sensor can be protected even when an excessive load is applied to the seat.

  According to the second feature, since the seat lock mechanism for holding the seat to the vehicle body side is attached to the sensor attachment member, the sensor attachment member has a function of supporting the sensor and a seat lock function. The number of parts can be reduced.

  According to the third feature, since the sensor is disposed on the upper surface of the sensor mounting member and the seat lock mechanism is mounted on the lower surface of the sensor mounting member, the vertical space of the sensor mounting member is effectively utilized, and the size can be reduced. It becomes possible.

  According to the fourth feature, the sensor mounting member includes a portion that is pressed and deformed by the pressing member, and a portion that supports the seat base that receives the load of the seat without passing through the sensor from below. For example, it is possible to mount the sensor as a flat plate that is easily deformable at the center portion of the sensor mounting member, and to support the seat using the outside of the flat plate portion as a high-strength leg portion, giving two functions to one component This reduces the number of parts and reduces the installation space by eliminating the need for separate parts.

  According to the fifth feature, the seat is supported by the pair of seat stays in the vehicle width direction directed in the longitudinal direction of the vehicle body, and the sensor mounting member is fixed so as to be bridged between the seat stays. Since the sensor is attached to the flat plate portion provided in the center of the sensor mounting member in the vehicle width direction, the center of the sensor mounting member fixed to the seat stay is maintained while maintaining rigidity at both ends. The load can be detected by the flat plate portion that is easily deformed.

  According to the sixth feature, the elastic member is a cylindrical sensor pressing rubber, and the pressing protrusion is formed with the side surface holding portion that contacts the rear side surface of the vehicle body of the sensor pressing rubber. The tolerance can be relaxed by the elastic member. In addition, since the load of the seat is transmitted to the sensor via the elastic member, it is possible to produce a soft feeling without requiring a large force when the seat is attached.

  According to the seventh feature, the hook that engages with the seat lock mechanism is provided on the lower surface of the seat bottom plate, and when the seat is attached to the vehicle body, the lower end of the hook reaches before the bottom of the seat lock mechanism reaches. Since the pressing protrusion is set so as to abut against the elastic member, the metal does not abut when the seat is attached to the vehicle body, and the merchantability can be improved by a soft touch.

  According to the eighth feature, since the pressing protrusion is provided at a position corresponding to the thickest portion of the cushion member of the seat, the pressing protrusion is provided at a position where the occupant is seated in a normal riding posture, and seating determination is performed. Can improve the accuracy.

  According to the ninth feature, the elastic member is a columnar sensor pressing rubber, and the pressing protrusion is formed with a columnar holding portion that contacts the vehicle body rear side surface of the sensor pressing rubber. By abutting not only on the upper surface but also the side surface of the elastic member, it is possible to ensure the alignment of the both and improve the accuracy of the seating determination. In particular, when the seat is attached to the vehicle body, it is positioned by pressing it against the front side of the vehicle body and then pressing down to operate the seat lock mechanism. Positioning can be performed more easily.

1 is a right side view of a motorcycle to which a seating detection device according to an embodiment of the present invention is applied. Fig. 3 is a left side view of a body frame of the motorcycle. FIG. 3 is a partially enlarged perspective view of the vehicle body frame with a seat removed. It is a partially expanded top view of a vehicle body frame. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a top view of a seating detection device. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 6. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 4. It is a schematic diagram which shows the engagement relationship of a seat stay, a seat stay connection member, and a sensor attachment stay. It is the expansion perspective view of the seating detection apparatus seen from the vehicle body right side. It is sectional drawing which shows the shape of the side surface holding part of a press protrusion. It is a time chart which shows the relationship between the seating determination by an seating detection apparatus, and idle stop control.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a right side view of a motorcycle 1 to which a seating detection device S according to an embodiment of the present invention is applied. FIG. 2 is a left side view of the body frame 9 of the motorcycle 1. It should be noted that the hatching process in each figure mainly clarifies the difference between parts in the same figure, and different hatching processes may be applied to the same part between different figures.

  The body frame 9 of the motorcycle 1 includes a head pipe 4, a pair of left and right main frames 10 extending obliquely rearward from the head pipe 4, and a pair of left and right terminals connected to the rear end of the main frame 10 and extending downward. A center frame 25, a down tube 24 that extends downward from the head pipe 4 and curves backward, and seat stays 13 and 13a that extend rearward and upward from two locations on the center frame 25 and are connected at the rear end. I have. The down tube 24 that curves backward on the front side of the engine 19 is connected to the lower end of the center frame 25 on the rear side of the engine 19.

  A front fork 3 that supports the front wheel WF is supported by the head pipe 4 so as to be steerable, and a steering handle 7 is connected to an upper end thereof. The pair of left and right front forks 3 includes a spring and a damper and is configured to be extendable and contractable in the axial direction.

  The front end portion of the swing arm 22 that rotatably supports the rear wheel WR is supported by a pivot 20 provided on the center frame 25 so as to be vertically swingable. The center frame 25 and the swing arm 22 are connected by the rear cushion unit 11 via the link mechanism 21. A connecting pipe 26 is provided above the pivot 20 and between the pair of left and right center frames 25 so as to be connected in the vehicle width direction.

  An engine 19 that is a four-cycle internal combustion engine is suspended in a space surrounded by the main frame 10, the down tube 24, and the center frame 25. A cylinder head 16 to which an exhaust pipe 18 is connected is fixed to the upper part of the cylinder block 17 of the engine 19. The exhaust pipe 18 is connected to the muffler 15 on the rear side of the vehicle body. The driving force of the engine 19 is transmitted to the rear wheel WR via the drive chain 23.

  A headlamp 5 is provided in front of the vehicle body of the head pipe 4, and a meter device 6 is attached between the headlamp 5 and the steering handle 7. A front fender 2 that covers the front wheel WF is fixed to the front fork 3. A fuel tank 8 is attached to the upper part of the main frame 10 behind the steering handle 7.

  A tandem seat 12 (hereinafter simply referred to as a seat) integrally formed for the driver and the passenger is attached to the upper part of the center frame 25 and the seat stay 13 behind the fuel tank 8. Yes. A rear fender 14 is provided behind the rear end portion of the seat stay 13.

  The boarding detection device S according to the present invention is provided at a position close to the seating position of the driver in the longitudinal direction of the vehicle body and at a position separated from the upper surface (sitting surface) of the seat 12 in the vertical direction of the vehicle body. More specifically, the boarding detection device S is attached not on the seat 12 side but on the seat stay 13 side that supports the seat 12, and by a pressing protrusion provided on the bottom plate (see FIG. 5) of the seat 12, A load is transmitted to the boarding detection device S.

  FIG. 3 is a partially enlarged perspective view of the vehicle body frame 9 with the seat 12 removed. 4 is a partially enlarged top view of the body frame 9, and FIG. 5 is a sectional view taken along line 5-5 of FIG. A connecting pipe 26 is provided between the pair of center frames 25 in the vehicle width direction. A plate-like seat stay connecting member 45 is provided at a position closer to the front of the vehicle body between the pair of left and right seat stays 13 extending rearward from the upper part of the center frame 25, and a second connecting pipe is provided behind the plate connecting member 45. 27 is provided. The seat stay connecting member 45 and the second connecting pipe 27 are fixed by welding both ends in the vehicle width direction to the seat stay 13.

  A seat grip 71 for a passenger to hold is attached to the upper surface of the rear end portion of the seat stay 13. The seat grip 71 also functions as a strength member of the seat stay 13 by being formed as an integral part having a shape straddling the left and right seat stays 13.

  The plate-like sensor mounting stay 40 covers the upper portion of the seat stay connecting member 45 and is arranged so as to be bridged between the seat stays 13, and is fixed to the seat stay connecting member 45 by bolts 60.

  The plate-shaped strain sensor 51 is fixed to the flat upper surface of the sensor mounting stay 40 using a fastening plate 52 and a bolt 53 as a fastening member. With this structure, the operation of attaching the seating detection device S to the vehicle body frame 9 is completed by fixing the sensor attachment stay 40 to which the seating detection device S is attached to the seat stay connecting member 45 incorporated on the vehicle body frame 9 side. A board-integrated connector 54 for sending the output of the strain sensor 51 to an ECU or the like is disposed behind the fastening plate 52.

  The seating detection device S in the present embodiment mainly indicates the strain sensor 51 and the sensor mounting stay 40, but as a concept thereof, a fastening plate 52 attached to the sensor mounting stay 40, a sensor pressing rubber 50 described later, A pressing protrusion 81 of the sheet bottom plate 80 that presses the sensor pressing rubber 50 may be included.

  The seat 12 configured to be detachable from the vehicle body is configured by attaching a cushion member 12a to the upper surface of a sheet bottom plate 80 formed of a flat resin and covering the surface with a seat skin (not shown). Yes.

  When the seat 12 is attached to the vehicle body, a positioning protrusion (not shown) that protrudes from the back surface of the seat 12 and bends to the front side of the vehicle body is engaged with a predetermined position on the vehicle body side and pressed to the front side of the vehicle body for positioning. By pushing down the seating surface, the hook 83 provided on the seat bottom plate 80 is engaged with a seat catch 70 as a seat lock mechanism. On the other hand, if the seat catch 70 is unlocked by an operation using a portable key or the like, the seat 12 can be removed from the vehicle body.

  In a state where the seat 12 is attached to the vehicle body, the back side of the seat 12 is mainly supported by a pair of left and right front seat bases 61 and a pair of left and right rear seat bases 28. The front seat base 61 is disposed on the inclined portions 41 at both ends of the sensor mounting stay 40 in the vehicle width direction. Further, the rear seat base 28 is disposed across the seat stay 13 and the second connection pipe 27 and is fixed by bolts 30.

  The front seat base 61 and the rear seat base 28 are each formed of hard resin or the like. When the seat 12 is attached, the cylindrical vibration-proof rubber 29 fixed to the back surface of the seat 12 abuts on the upper surface of each seat pedestal, thereby preventing rattling of the seat 12 and improving cushioning properties. Figured. 3 and 4, in order to show the positional relationship between the seat bases 61 and 28 and the vibration isolation rubber 29, a single state in which the vibration isolation rubber 29 is removed from the seat 12 is shown.

  The seat catch 70 is fixed to the lower surface side of the sensor mounting stay 40 by bolts 55. The flat plate portion 48 of the sensor mounting stay 40 is provided with a slit 44 through which a hook 83 engaged with the seat catch 70 is passed. A sensor pressing rubber 50 as an elastic member is attached to the flat plate portion 48 of the sensor attachment stay 40 at a position on the vehicle body front side of the strain sensor 51.

  The sensor pressing rubber 50 is configured to contact a pressing protrusion 81 (see FIG. 5) provided on the seat bottom plate 80 when the seat 12 is attached to the vehicle body. Thereby, the load F applied to the seat 12 is transmitted to the sensor mounting stay 40 via the sensor pressing rubber 50. As a result, the flat plate portion 48 of the sensor mounting stay 40 is deformed downward and convex with the sensor pressing rubber 50 as the center. In the present invention, the load applied to the seat 12 is detected based on the deformation amount of the sensor mounting stay 40, and the seating determination of the occupant is performed.

  The seating detection device S according to the present embodiment is disposed at a position corresponding to the thickest portion of the cushion member 12a of the seat 12. This position is also a position where an occupant is seated in a normal riding posture, thereby improving the accuracy of seating determination.

  FIG. 6 is a top view of the seating detection apparatus S. FIG. FIG. 7 is a sectional view taken along line 7-7 in FIG. Positioning holes 41 a and screw holes 41 b for fixing the front seat base 61 are formed in the inclined portions 41 at both ends in the vehicle width direction of the sensor mounting stay 40. Positioning projections provided on the lower surface of the front seat base 61 are engaged with the positioning holes 41a, and the bolts 30 (see FIG. 4) are fastened to the screw holes 41b, so that the front seat base 61 is fixed at a predetermined position. The

  The strain sensor 51 that is a long rectangle in the vehicle width direction is in direct contact with the upper surface of the sensor mounting stay 40. The bolts 53 are passed from above the fastening plate 52 superimposed on the upper surface of the strain sensor 51 and fastened to the sensor mounting stay 40 by fastening the nut 53a on the back surface side.

  The strain sensor 51 is configured such that only both ends in the longitudinal direction are pressed by the retaining plate 52, and the central upper surface of the strain sensor 51 is exposed upward. On the other hand, the retaining plate 52 is connected to the rear side of the strain sensor 51, and the board-integrated connector 54 is fixed to the connecting portion by two screws 56. Further, in the seat catch 70 shown in FIG. 6, what protrudes forward from the sensor mounting stay 40 is an operating lever that engages with the other end of the wire connected to the key cylinder.

  In the present embodiment, the strain generated in the sensor mounting stay 40 by being pressed by the sensor pressing rubber 50 is detected by the strain sensor 51. Therefore, the load depends on the location of the sensor pressing rubber 50 and the shape and thickness of the sensor mounting stay 40. It is possible to adjust the relationship between the magnitude of F and the sensor output.

  8 is a cross-sectional view taken along line 8-8 of FIG. FIG. 9 is a schematic diagram showing an engagement relationship between the seat stay 13, the seat stay connecting member 45, and the sensor mounting stay 40. The anti-vibration rubber 29 is attached by passing an umbrella-shaped engagement portion through a through-hole formed in the seat bottom plate 80, and the pressing rubber 50 is attached to the through-hole formed in the sensor mounting stay 40. It is attached by passing it through.

  When the seat 12 is attached to the vehicle body, the seat 12 is supported by four seat bases 61 and 28 provided on the vehicle body side, and is supported at a total of five points including the sensor pressing rubber 50. Become. In the present embodiment, in a state where the hook 83 is locked to the seat catch 70, the four vibration-proof rubbers 29 and the pressing protrusions 81 on the seat bottom plate 80 side abut against the four seat bases 61 and 28 and the sensor pressing rubber 50. The repulsive force due to the elasticity of the rubber member is generated at each contact location. As a result, there is no backlash between the seat frame 13 and the seat 12, and the output of the strain sensor 51 can be maintained at a predetermined value when no external pressure is applied to the seat 12 due to seating or the like.

  Further, when the hook 83 is engaged with the seat catch 70, a resilient force has already been generated between the pressing protrusion 81 and the sensor pressing rubber 50, and the lower end portion of the hook 83 is the bottom portion of the seat catch 70. The dimension is set so as not to reach 70a. As a result, when the occupant presses the seat 12 from above to attach it to the vehicle body side, the metals do not come into contact with each other, and it is possible to convey only a high-quality feeling due to the elastic force of the rubber member. Become.

  Referring also to the schematic diagram of FIG. 9, in the present embodiment, the seat stay coupling member 45 is welded to the seat stay 13 by welding the end portions of the curved portions 46 provided at both ends in the vehicle width direction. It is fixed so as to be bridged between the seat stays 13. The seat stay connecting member 45 has a downwardly convex shape, whereas the sensor mounting stay 40 has an upwardly convex shape having inclined portions 41 at both ends of the flat plate portion 48. And a space for accommodating the sheet catch 70 is formed between the two. The fastening of both is carried out by the bolt 60 (refer FIG. 3) which penetrates the through-hole 47 provided in the curved part 46 of the seat stay connection member 45, and the through-hole 43 formed in the folding | turning part 42 of the sensor attachment stay 40. Done.

  The front seat base 61 is attached to the inclined portion 41 of the sensor attachment stay 40. The positioning projection 61a formed on the lower surface of the front seat base 61 passes through the positioning hole 41a of the inclined portion 41 and the bolt 30 (see FIG. 4) passing through the screw hole 41b is fastened to the fastening member 30a. Fixing of the front seat base 61 is completed.

  According to the configuration as described above, the center portion in the vehicle width direction of the sensor mounting stay 40 can be easily deformed while ensuring rigidity with respect to the load applied to the front seat base 61, and load detection by the strain sensor 51 is facilitated. be able to.

  FIG. 10 is an enlarged perspective view of the seating detection device S viewed from the right side of the vehicle body. 11 is a cross-sectional view showing the shape of the side surface holding portion 81a of the pressing protrusion 81. As shown in FIG. The hook 83 engaged with the seat catch 70 is fixed to the lower surface of the seat bottom plate 80 by a fastening member (not shown) such as a rivet. The hook 83 is formed by bending a cylindrical steel wire into a predetermined shape.

  The pressing protrusion 81 has a side surface holding portion 81 a that contacts the side surface of the sensor pressing rubber 50 on the rear side of the vehicle body on the rear side of the surface pressing the upper surface of the cylindrical sensor pressing rubber 50. As described above, the seat 12 is pressed against the front side of the vehicle body and positioned, and then the seat catch 70 is locked and fixed by pressing the seating surface downward. At this time, since the side surface holding portion 81 a is provided on the pressing protrusion 81, the pressing protrusion 81 is rearward with respect to the sensor pressing rubber 50 even when, for example, wear occurs on the positioning member of the sheet 12. Easily coming into contact with a predetermined position.

  The shape of the side surface holding portion 81a can be arbitrarily set according to the shape of the sensor pressing rubber 50 and the sensor mounting stay 40. For example, the range in which the side surface of the sensor pressing rubber 50 is covered can be arbitrarily changed. Further, the height of the side surface holding portion 81a may be a height that covers a part of the side surface of the sensor pressing rubber 50, or may have a height that covers all the side surfaces and extends further downward.

  FIG. 12 is a time chart showing the relationship between the seating determination and the idle stop control by the seating detection device S according to the present embodiment. This time chart shows, from the top, idle stop mode on / off, main switch on / off, starter magnet (cell motor) on / off, fuel injection device and ignition device on / off (engine start / stop), It shows on / off of seating determination, vehicle speed, throttle angle, engine water temperature, and strain sensor output.

  The motorcycle 1 according to the present embodiment is applied with an idle stop control that automatically stops the engine under a predetermined condition such as waiting for a signal and enables a quick restart by a passenger's throttle operation. The seating determination by the seating detection device S is applied to the entry permission to the idle stop control.

  Here, the load applied to the seat 12 during traveling in the normal riding posture is 30 to 40% of the body weight because the load is distributed to the steering handle and the footrest step. On the other hand, since it is assumed that a maximum of 20 kg of luggage is loaded on the seat 12 separately from the weight of the passenger, when the weight of the passenger is light, the load based on the seating and the load based on the luggage loading There is a case where the seating determination cannot be made simply based on the output of the strain sensor. In response to this problem, in the present invention, the seating determination of the occupant is executed when a predetermined condition is satisfied after the vehicle starts running, thereby ensuring the accuracy of the seating determination. Hereinafter, it demonstrates concretely along the flow of a time chart.

  First, at time t1, the main switch is turned on, and at time t2, the occupant sits on the seat 12 to increase the strain sensor output. At time t3, the starter magnet starts driving by operating the engine start switch, and the engine starts at time t4.

  Next, the vehicle starts as the throttle angle increases, and the load value learning zone T is started from time t5 when the vehicle speed becomes 10 km / h or more which is a predetermined value. In this embodiment, after the start of the load value learning zone T, load detection based on the strain sensor output is executed once every 10 seconds, and the load value is determined by detecting the same value five times continuously. . In other words, in the present embodiment, if the vehicle speed exceeds a predetermined value and the same load value of a predetermined value or more (for example, 20 kg or more) is output for a predetermined time, at least a passenger is seated. Estimate that the vehicle is running and determine the load value. Therefore, appropriate seating detection can be executed regardless of the weight of the occupant and the presence or absence of luggage.

  Next, after the load value is determined in the load value learning zone T, when the engine water temperature becomes equal to or higher than a predetermined value (60 degrees in the present embodiment) suitable for idle stop control, the seating determination is turned on at time t6. Transition from the normal travel mode to the idle stop travel mode. In this embodiment, since the seating determination once turned on is held until the main switch is turned off, for example, when the vehicle is temporarily stopped, the occupant makes contact with both feet or raises the waist from the seat to change the seat load. Even so, the idle stop running mode is maintained.

  At time t7, deceleration for temporarily stopping the vehicle, such as waiting for a signal, is started. In the present embodiment, the condition for determining whether or not to stop the vehicle is “continue for 3 seconds when the vehicle speed is less than 3 km / h”, and at time t8, the engine stops with the start of execution of the idle stop control.

  Next, at t9, the throttle operation for restarting is started, and at time t10 when the throttle angle used as a trigger for restart control from the idle stop state is equal to or greater than a predetermined angle, the starter magnet starts driving, and at time t11, the engine is started. Starts.

  Thereafter, in the flowchart, at time t12, deceleration is started again, and the idle stop control starts to start at time t13, but the main switch is turned off at time t14. Accordingly, the seating determination is turned off, the idle stop travel mode is switched to the normal travel mode, and the series of controls is completed.

  The type, shape and arrangement of the strain sensor, the shape of the sensor mounting stay, the mounting structure of the sensor with respect to the sensor mounting stay, the shape and arrangement of the sensor pressing rubber, the shape of the pressing protrusion, etc. are not limited to the above embodiment, but various It can be changed. For example, the seating detection device according to the present invention is not limited to a motorcycle, and can be applied to various vehicles such as a saddle riding type three / four-wheeled vehicle.

  DESCRIPTION OF SYMBOLS 1 ... Motorcycle, 12 ... Seat, 12a ... Cushion member, 13 ... Seat stay, 40 ... Sensor mounting stay (sensor mounting member), 41 ... Inclined part, 45 ... Seat stay connecting member, 48 ... Flat plate part, 50 ... Sensor Pressing rubber (elastic member), 51 ... Strain sensor, 61 ... Seat base, 70 ... Seat catch (sheet locking mechanism), 80 ... Seat bottom plate, 81 ... Pressing protrusion, S ... Seating detection device

Claims (8)

The seating state of the occupant is detected by detecting the load applied to the seat (12) including the seat bottom plate (80) and the cushion member (12a) attached to the seat bottom plate (80) by the sensor (51). In the seating detection device (S) for a motorcycle,
A sensor mounting member (40) that holds the sensor (51) and is fixed to the vehicle body;
A pressing protrusion (81) protruding downward from the sheet bottom plate (80),
When a load is applied to the sheet (12), the pressing protrusion (81) presses the sensor mounting member (40), and the amount of deformation of the sensor mounting member (40) due to the pressing is determined by the sensor (51). It is configured to detect by,
The sensor mounting member (40) includes a portion that is deformed by being pressed by the pressing protrusion (81) and a seat base (61) that receives the load of the seat (12) without passing through a sensor from below. And a seating detection device for a motorcycle.   The seating detection device for a motorcycle according to claim 1, wherein a seat lock mechanism (70) for holding the seat (12) toward the vehicle body is attached to the sensor attachment member (40). The sensor (51) is disposed on the upper surface of the sensor mounting member (40),
The seating detection device for a motorcycle according to claim 2, wherein the seat lock mechanism (70) is attached to a lower surface of the sensor attachment member (40). The seat (12) is supported by a pair of seat stays (13) in the vehicle width direction oriented in the longitudinal direction of the vehicle body,
The sensor mounting member (40) is a single plate-like member fixed so as to be bridged between the seat stays (13);
The seating detection device for a motorcycle according to claim 2 or 3 , wherein the sensor (51) is attached to a flat plate portion (48) provided at a vehicle width direction center of the sensor attachment member (40). The seating detection device for a motorcycle according to claim 4 , wherein an elastic member (50) that comes into contact with the pressing protrusion (81) is attached to the flat plate portion (48). A hook (83) that engages with the seat lock mechanism (70) is provided on the lower surface of the seat bottom plate (80),
When the seat (12) is attached to the vehicle body, the pressing protrusion (81) is moved to the elastic member (50) before the lower end of the hook ( 83 ) reaches the bottom (70a) of the seat lock mechanism (70). 6. The motorcycle seating detection device according to claim 5 , wherein the seating detection device is set so as to be in contact with the motorcycle. The motorcycle according to any one of claims 1 to 6 , wherein the pressing protrusion (81) is provided at a position corresponding to a thickest portion of the cushion member (12a) of the seat (12). Seating detection device. The elastic member (50) is a cylindrical sensor pressing rubber,
The seating detection device for a motorcycle according to claim 5 , wherein a side surface holding portion (81a) that abuts against a rear side surface of the sensor pressing rubber (50) is formed on the pressing protrusion (81). .