• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    hybrid saddle-type vehicle. the invention relates to a hybrid saddle-type vehicle in which a drive mechanism for an electric motor can be arranged in a compact size, freedom of design is improved, and an output of the electric motor is improved. the hybrid saddle-type vehicle (1) is provided with a power transmission mechanism (62) to transmit power from an internal combustion engine and to a drive axle (52) of a rear wheel wr on one side of a swing arm (7) in a vehicle-wide direction, and an electric motor (63) arranged on the other side in the wide direction and to transmit a driving force on the other side in the wide direction. a motor housing (90) of the electric motor (63) is supported on an extension portion (52c) which extends on the other side in the width direction of a portion (52b) of the drive shaft (52) on which the rear wheel wr is mounted, through a pair of bearing sections (91, 92) arranged on both sides of the motor housing (90) in the wide direction. the rotor 94 is supported rotatable by the drive shaft (52) between the pair of bearing sections (91, 92)
    公开号:BR112012023831B1
    申请号:R112012023831-0
    申请日:2010-03-23
    公开日:2020-10-06
    发明作者:Akifumi Nomura；Kenichi Ohmori；Kazuyuki Nakai
    申请人:Honda Motor Co., Ltd.；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] The invention relates to a hybrid saddle-type vehicle. BACKGROUND OF THE TECHNIQUE
    [002] A hybrid motorcycle that includes a forced air-cooled engine and a drive motor and in which respective drive torques are appropriately selected and transmitted to a rear wheel has been proposed so far (for example, see Patent Document 1). The hybrid motorcycle described in Patent Document 1 includes a transmission box equipped with a transmission mechanism to transmit a driving force from an engine to the rear wheel. The gearbox is integrally formed with an engine crankcase, and is arranged on the left side of the vehicle body. In addition, an electric motor is arranged back and forth in a horizontal direction on the right side of the vehicle body, and an engine box is supported on the crankcase by means of a support. The driving force of the engine is transmitted to a rear wheel axle through the transmission mechanism. By manually operating a shift lever, an electric motor drive force is transmitted to the rear wheel axle through a bevel gear, a speed reduction mechanism, and a power shift mechanism. PREVIOUS TECHNICAL DOCUMENT PATENT DOCUMENT
    [003] Patent Document 1 JP-B2-3660466 SUMMARY OF THE INVENTION PROBLEMS TO BE SOLVED BY INVENTIONS
    [004] The hybrid motorcycle described in Patent Document 1 has a problem that, since a large space is required on the right side of the vehicle body to install the bevel gear, the speed reduction mechanism, and the gear shift mechanism power which transmit the driving force of the electric motor, and a damper in addition to the electric motor, an electric motor size or performance is limited in terms of layout. Yet, there is another problem that as the driving force of the electric motor is transmitted through a plurality of mechanisms such as the bevel gear, the speed reduction mechanism, and the power shift mechanism, a mechanical loss occurs during transmission. of power.
    [005] The inventions were made to solve the problems mentioned above, and an object of the inventions is to provide a vehicle of the hybrid saddle type in which a drive mechanism for an electric motor can be arranged in a compact size in order to perfect a design freedom and an efficiency of the electric motor is increased. MEANS TO SOLVE PROBLEMS
    [006] In order to reach the object, according to the invention of claim 1, a hybrid saddle-type vehicle includes a rear wheel support member attached oscillating to a body structure and adapted to support a rear wheel; a power transmission mechanism configured to transmit power from an internal combustion engine to a rear wheel drive shaft on one side of the rear wheel support member in a vehicle-wide direction; and an electric motor configured to transmit a driving force to the drive shaft on the other side of the rear wheel support member in the wide direction. The electric motor includes a motor housing that accommodates a stator and a rotor in it and is attached to the rear wheel support member. The motor housing is supported on an extension portion that extends on the other side in the width direction of a portion of the drive shaft on which the rear wheel is mounted, through a pair of bearing sections arranged on both sides of the housing in the wide direction. The rotor is supported rotatable by the drive shaft between the pair of bearing sections.
    [007] According to the invention of claim 2, in addition to the configurations of claim 1, the rear wheel support member is an oscillating arm supported oscillating on the body structure through an articulation axis.
    [008] According to the invention of claim 3, in addition to the configurations of claim 2, the motor housing is arranged behind the pivot shaft and into an end portion of the pivot shaft.
    [009] In accordance with the invention of claim 4, in addition to the configurations of claim 2 or 3, a connecting member connecting the motor housing and the swing arm is arranged on top of a lower surface of the swing arm.
    [0010] According to the invention of claim 5, in addition to the configurations of any of claims 1 to 4, the swing arm includes a first arm portion extending on one side of a support portion which supports the pivot axis in the wide direction to one side of the rear wheel, a second arm portion that extends across the support portion in the wide direction to a front of the rear wheel, and a transverse portion that connects a rear portion of the second portion of arm and the first arm portion, and the connecting member connecting the motor housing and the swing arm is connected to the rear portion of the second arm portion from which the transverse portion extends.
    [0011] According to the invention of claim 6, in addition to the configurations of claim 1, the rear wheel support member is a single oscillating housing which is supported oscillating on the body structure through a connection mechanism and covers the internal combustion engine.
    [0012] According to the invention of claim 7, in addition to the configurations of any of claims 1 to 6, the drive shaft is provided thereon with an axial passage extending an axial direction from the other its end portion, and a radial passage that extends in a radial direction of the axial and open passage near the bearing section which is positioned in an intermediate portion of the drive shaft, and the motor housing is provided with ribs adapted to supply the spilled oil dispersed within the housing motor for axial passage.
    [0013] In accordance with the invention of claim 8, in addition to the configurations of any one of claims 1 to 6, the rear wheel of the rear wheel includes a portion of the wheel hub that has an internal cylindrical hub provided on the drive shaft and a outer cylindrical hub provided radially outward from the inner hub, and at least part of the bearing section that supports the motor housing on one side of the power transmission mechanism is arranged to overlap the outer hub in the wide direction.
    [0014] In accordance with the invention of claim 9, in addition to the configurations of any of claims 1 to 8, the electric motor also includes an adapted speed reduction mechanism that decelerates the driving force and transmits it to the axis of drive, and the rotor is supported rotatable around the drive shaft, and the speed reduction mechanism is arranged on the other side of the drive shaft in the wide direction. ADVANTAGES OF THE INVENTIONS
    [0015] According to the invention of claim 1, as the motor housing is supported by the extension portion extending from the portion, on which the rear wheel is mounted, of the drive axle on the other side in the width direction of the vehicle through of the pair of bearing sections arranged on both sides in the same width direction of the vehicle, the electric motor can be directly supported by the drive shaft clamped with force, and thus the power transmission mechanism can be configured without being necessary for the bevel gear or the speed reduction mechanism. In addition, as the rotor is supported by the drive shaft between the pair of bearing sections on both sides of the motor housing, the heavy rotor can be reliably supported by the drive shaft over a long span. Furthermore, the drive mechanism for the electric motor can be compact in size, and the design freedom of the electric motor can be improved as much as the size becomes compact. In addition, the driving force of the electric motor can be transmitted to the driving wheel of the rear wheel without passing through a plurality of transmission mechanisms, thereby suppressing the loss of power in the transmission to a minimum.
    [0016] According to the invention of claim 2, as the rear wheel support member is supported oscillating on the body structure through the articulation axle, it is possible to incorporate the electric motor into the oscillating arm in the hybrid saddle type vehicle which includes the swing arm.
    [0017] According to the invention of claim 3, as the motor housing is disposed far behind than the pivot axis of the swing arm and far inward than the end portion of the pivot axis, the electric motor does not protrudes from the vehicle, but is compactly arranged.
    [0018] According to the invention of claim 4, as the connecting member connecting the motor housing and the swing arm is arranged far higher than the lower surface of the swing arm, a minimum height above the ground is not determined by the connecting member, but the height above the ground of the swing arm can be adjusted to the minimum height above the ground, as in the relative technique.
    [0019] According to the invention of claim 5, the swing arm includes the first arm portion extending from the support portion, which is supported by the pivot axis, on the side of the rear wheel, the second arm portion extending to the front of the rear wheel, and the transverse portion, and the connecting member connecting the motor housing and the swing arm is connected to the rear portion of the second arm portion. Therefore, the rear wheel can be supported on the double-sided structure which has high rigidity, and the swing arm distortion can be prevented, thereby ensuring steering safety.
    [0020] According to the invention of claim 6, as the rear wheel support member is the single oscillating housing which is supported oscillating in the body structure through the connection mechanism and covers the internal combustion engine, it is possible to incorporate the electric motor inside the unit swing box in the hybrid saddle type vehicle that includes the unit swing box.
    [0021] According to the invention of claim 7, the drive shaft includes the axial and radial passages open near the bearing section, and the motor housing includes the ribs for collecting the oil splash dispersed within the bearing housing. motor. Therefore, it is possible to effectively collect the splash of oil dispersed inside the engine housing and supply it to the bearing sections to lubricate the bearing sections.
    [0022] According to the invention of claim 8, as at least a portion of the bearing section that supports the power transmission mechanism side of the motor housing is arranged to overlap the outer wheel hub in the vehicle's wide direction , the rolling section can be arranged close to the central portion of the vehicle body, thereby suppressing the vibration of the drive shaft.
    [0023] According to the invention of claim 9, as the rotor is supported rotatable by the drive shaft, the rotation of the rotor is decelerated by the speed reduction mechanism arranged outside the drive shaft in the vehicle's wide direction and is then transmitted to the drive shaft, the heavy rotor can be arranged on the central portion of the drive shaft, thereby suppressing the drive shaft vibration. BRIEF DESCRIPTION OF THE DRAWINGS
    [0024] Figure 1 is a side view illustrating a vehicle of the hybrid saddle type according to a first embodiment of the inventions.
    [0025] Figure 2 is a plan view of the hybrid saddle type vehicle illustrated in Figure 1.
    [0026] Figure 3 is a right side view that illustrates a rear wheel supported by a swing arm in Figure 1.
    [0027] Figure 4 is a partial sectional view illustrating a rear wheel drive mechanism in Figure 1.
    [0028] Figure 5 is an enlarged view of a main portion of Figure 4.
    [0029] Figure 6 is an enlarged view of a main portion of Figure 5.
    [0030] Figure 7 is a side view of an engine end cover when viewed from the inside.
    [0031] Figure 8 is a side view illustrating a hybrid saddle type vehicle according to a second embodiment of the inventions.
    [0032] Figure 9 is a cross-sectional view taken along line IX-IX in Figure 8. DESCRIPTION OF MODALITIES
    [0033] A vehicle of the hybrid saddle type according to each modality of the inventions will now be described with reference to the accompanying drawings. The drawings must be viewed in a position that allows an appropriate reading of the reference numbers included in the respective drawings. FIRST MODE
    [0034] Figure 1 is a side view illustrating the total configuration of a hybrid saddle-type vehicle according to a first embodiment of the inventions, and Figure 2 is a plan view of the hybrid saddle-type vehicle.
    [0035] As illustrated in Figures 1 and 2, a large motorcycle 1 which is a hybrid saddle type vehicle according to this modality, includes a body structure 2, a main tube 3 fixed in a front end portion of the body structure 2, a front fork 4 hinged to the main tube 3, a front wheel WF mounted rotatable on a lower end portion of the front fork 4, a steering handlebar 5 mounted on an upper end portion of the front fork 4, a motor (internal combustion engine) AND positioned below a front portion of the body structure 2 and extending farther back than the front fork 4, a swing arm 7 (rear wheel support member) mounted swing in an upward - downward direction on a pivot axis 6 which is provided in a lower rear portion of the body structure 2, a rear wheel WR mounted rotatable on an oscillating end portion of the arm oscillating section 7, a discharge damper 8 connected to the engine E via a discharge tube (not shown), and a rear shock absorber 9 (see Figure 3) arranged between the swing arm 7 and the body structure 2.
    [0036] Body structure 2 includes a pair of left and right main structures 10 branched in a right and left direction from the main tube 3s and extending backwards and obliquely downwards, a pair of left and right articulation plates 11 connected to a rear portion of the main frame 10, and a pair of left and right seat rails 12 that extend backwards and obliquely upwards of the front and rear portions of the hinge plate. Engine E is supported below main frame 10, and a fuel tank 13 is supported above main frame 10. In addition, an occupant seat 14 is attached to the upper portion of seat rail 12, and a grab rail 15 and a luggage box 16 are attached to the rear portion of the seat rail 12.
    [0037] The occupant seat 14 includes a front seat 14A that extends to a rear portion of the fuel tank 13, on which the rider sits, a rear seat 14B formed higher by a step than the front seat 14A in the portion rear of the front seat 14A, on which a rump passenger sits, and a backrest 14C for the occupant. In addition, the hinge plate 11 of the body structure 2 is secured with a pair of left and right supports (biker foot supports) 17 for the rider sitting in the front seat 14A, and with a pair of left and right supports (crib passenger foot support) 18 for croup passenger sitting in rear seat 14B. In addition, a main easel 19, a sub-easel 20, a body hood 21 which will be described later, and others are attached to the body structure 2.
    [0038] The body hood 21 includes a front fairing 22 that covers the vehicle body, a pair of left and right side covers 23 that cover the side portions of the vehicle body, a lower cover 24 that covers the lower body portion vehicle, and a rear seat fairing 25 covering the rear portion of the vehicle body. The rear seat fairing 25 is integrally formed with a pair of left and right saddlebags 26. A front fender 27 is attached to the front fork 4 to cover the front wheel WF. A rear fender (not shown) is attached to the rear seat cowl 44 to cover the rear wheel WR. Meanwhile, the front fairing 22 and the pair of left and right side covers 23 can be formed in one piece. In addition, one of the saddlebags 26 is received with a PDU (power drive unit) 28a and a battery 28b.
    [0039] Headlights 29 are provided on the front surface of the front fairing 22, and a front window (windshield) 30 is attached above the headlights. Left right mirrors 32 each incorporating a front arrow 31 are respectively provided at the left and right ends of the front fairing 22. As shown in Figure 2, the vehicle markers 33 are arranged inside the front fairing 22. The side covers 23 are respectively provided with a pair of left and right air vents 34 adapted to supply the external air from the front of the vehicle to the surroundings of the E engine. An engine guard 35 is provided in the left front and right front portions of the E engine, and a pair of left and right fog lamps 36 are attached to the motor guard 35.
    [0040] The side covers 23 are secured with a pair of top left and right covers (external cover) 23A (see Figure 2) that cover between the side cover 23 and the main structure 10 and exposed from the outside. The upper side covers 23A stop the heat generated from the engine E from flowing to the passenger side through a gap between the side covers 23 and the body structure 2. The upper side covers 23A also serve as a decorative cover covering the upper portion of a radiator (not shown). In addition, a pair of left and right taillight units 37 are arranged on a rear surface of the luggage box 16, and a rear arrow (not shown) is arranged on a rear surface of the respective saddlebags 26. A right portion of the luggage box luggage 16 is secured with a road antenna 39 used when an audio unit (not shown) incorporated in the large motorcycle 1 receives a radio transmission.
    [0041] A suspension connection 40 includes, as illustrated in Figure 3, a first connection 43 connected in an upright 41 at an end portion 43a by an axis 42, and a second connection 45 having an end 45a connected to a intermediate portion of the first connection 43 by an axis 44, and the other end 45b connected to a lower end portion 11a of the hinge plate 11 by an axis 46. The other end 43b in the first connection 43 is connected to an upper end portion 11b of the hinge plate 11 by an axle 49. The rear shock absorber 9 penetrates a space 50 (see Figure 4) formed on the front side of the swing arm 7.
    [0042] As shown in Figure 4, the swing arm 7 is integrally formed with a support portion 7a oscillating around the hinge plate 11 through the hinge axis 6, a first arm portion 7b extending on one side (left side) of Figure 4 of the support portion 7a in a wide direction of the vehicle to one side of the rear wheel WR, a second arm portion 7c extending on the other side (right side in Figure 4) of the support portion 7a in the wide direction of the vehicle to the front of the rear wheel WR, and a transverse portion 7d that connects the rear portion of the second arm portion 7c and the intermediate portion of the first arm portion 7b in the width direction of the vehicle. The swing arm 7 is hollow, and a drive shaft 66 which will be described later is accommodated within the first arm portion 7b, and passes above the support portion 7a to be connected to the output shaft 51.
    [0043] Next, the drive mechanism for the rear wheel WR will be described with reference to Figures 4 to 6. The drive mechanism 60 includes a power transmission mechanism 62 for transmitting the power of the motor E from one side of the arm oscillating 7 in the vehicle's width direction to the drive axle 52 of the rear wheel WR which will be described, and an electric motor 63 to transmit the driving force from the other side of the swing arm 7 in the vehicle's width direction to the axle drive 52.
    [0044] The power transmission mechanism 62 and a drive shaft 66 which has a front end portion connected to the output shaft 51 of the motor E via a universal joint 64 and a rear end portion provided with a speed joint constant 67, a drive bevel gear 70 supported rotatable on the gearbox 67 by a ball bearing 68 and a needle bearing 69, and a driven bevel gear 64 mounted in splines on a gear shaft 73 which is supported rotatable on gearbox 67 by needle bearing 71 and a pair of ball bearings 72, and engaged with drive bevel gear 70.
    [0045] The gear shaft 73 is attached and integrally fixed with a flange portion 52a formed on one side of the drive shaft in the width direction of the vehicle, with the rear wheel WR being attached to the drive shaft 52, a disc of disc-shaped brake 75, and a rear wheel 76 of the rear wheel WR by a screw 77. In this way, the driving force of the power transmission mechanism 62 is transmitted to the drive shaft 52.
    [0046] A disc brake device 80 is arranged on an external side of the brake disc 75, and has a pair of brake pads 81 driven by a hydraulic cylinder 79 to clamp the brake disc 75.
    [0047] The rear wheel 76 includes a wheel hub portion 82, a spoke portion 83 that extends substantially radially out of the wheel hub portion 82, and a rim portion 84 provided at a front end of the spoke portion 83 and securing the rear wheel WR. The wheel hub portion 82 has an inner cylindrical hub 85 mounted on the drive shaft 52, an outer hub 86 provided rather radially outwardly than the inner hub 85, and a side wall 87 that integrally connects inner hub 85 and the external hub 86.
    [0048] The electric motor 63 is arranged on the other side (right side in Figure 4) of the swing arm 7 in the vehicle's width direction, and transmits the driving force to the driving axle 52 of the rear wheel WR. In addition, the electric motor 63 is supported rotatable over an extension portion 52c extending from a portion 52b of the drive shaft 52, on which the rear wheel 76 is mounted, to the other portion 52c in the vehicle's wide direction, through a pair of bearing sections arranged on both ends of the motor housing 90, in an axial direction thereof, that is, a ball bearing 91 and the other ball bearing 92.
    [0049] A rotor sleeve 108 is positioned on the drive shaft 52 in a substantially central portion between ball bearings 91 and 91 and the other ball bearing 92, and is rotatively supported by a pair of needle bearings 96 in both ends. A rotor core 107 of rotor 94 is attached to rotor sleeve 108 by a screw 109. A stator 95 is attached to motor housing 90 on an outer peripheral side of rotor 94, with a slight gap being between the stator and housing in a radial direction.
    [0050] The motor housing 90 includes a housing body 90a, inner and outer housing covers 90b and 90c each attached to the housing body 90a, and a cover 56 to cover an opening portion 90d provided in the outer housing cover 90c. The motor housing 90 is disposed farther back than the pivot shaft 6, and also further inward than an end portion 6a of the pivot shaft 6 (see Figure 4).
    [0051] A drive gear 97 is fixed on the other side of the rotor sleeve 108 in the width direction of the vehicle in a grooved assembly mode. In addition, an intermediate shaft 100 is rotatable supported between the housing body 90a and the outer housing cover 90c through a pair of ball bearings 101, and is provided with a large gear 98 and a small gear 99. The large gear 98 of the intermediate shaft 100 is engaged with a drive gear 97, and the small gear 99 of the intermediate shaft 100 is engaged with a driven gear 102 provided on the drive shaft 52. The drive gear 97, the large gear 98, the gear small 99, and the driven gear 102 configure the speed reduction mechanism 103, and the rotation of the rotor 94 is transmitted to the drive shaft 52 through the speed reduction mechanism 103 (the drive gear 97, the gear large 98, small gear 99 and driven gear 102). The contact surface between the housing body 90a and the outer housing cover 90c which defines a space to accommodate the speed reduction mechanism 103 therein is provided with an O-ring 114 to seal the space.
    [0052] The drive shaft 52 is provided with an axial passage 53 that extends in an axial direction from the other its end portion and that passes through the geometric axis, and a radial passage 54 that communicates with the axial passage 53 and extends in a radial direction. The radial passage 54 is open close to one of the ball bearings 91 and 91 which are positioned in the intermediate portion of the drive shaft 52. The opening portion 90d provided in the outer housing cover 90c which corresponds to the other side of the drive shaft drive 52 in the vehicle's width direction is closed by the cover fixed by screw 58, with an O-ring 57 being interposed between the cover and the opening portion (see Figures 6 and 7).
    [0053] As illustrated in Figures 6 and 7, the inner surface of the cap 56 is provided with a trough-shaped oil introduction rib 59, which is convex downwards, in an opposite position to the axial passage 53 of the axle. drive 52. The oil introduction rib 59 is inserted in a radially enlarged open end portion 53a of the axial passage 53. In addition, a plurality of oil collection ribs 61 are formed above the oil introduction rib 59. The ribs oil collection valve 61 are formed to extend radially and obliquely upward with the oil introduction rib 59 as a center, above the oil introduction rib 59. In this way, the oil splash that moves upward with the rotation of the speed reduction mechanism 103 (the drive gear 97, the large gear 98, the small gear 99, and the driven gear 102) and dispersed within the motor housing 90, is collected by the collection ribs the oil 61. The collected oil is supplied to the ball bearings 91 and 91 positioned in the intermediate portion of the drive shaft 52 through the opening end 53a, the axial passage 53, and the radial passage 54 of the oil introduction rib. 59 to lubricate ball bearings. Meanwhile, the oil collecting ribs 61 are two in this embodiment, plus any number of oil collecting ribs can be provided.
    [0054] As shown in Figure 7, the outer housing cover 90c is provided with an oil check hole 88 and an oil drain hole 89 at an angle to its lower rear portion, and an oil check screw and an oil drain screw are screwed into each hole 88 and 89 to block the holes. The oil check hole 88 is for checking whether an OL oil level of the oil retained inside the engine housing 90 reaches the bottom surface of the oil check hole 88, specifically, a height at which the oil is scraped by a surface gear toothed gear 102. In addition, oil drain hole 89 is for discharging used oil O at the time of oil change.
    [0055] In the electric motor 63, which has the above configuration, the ball bearings 91 and 91 mounted inside the inner housing cover 90b are pressed over a drive shaft 144. Next, stator 95 is attached and fixed to the cover inner housing 90b, and the rotor 94, the rotor core 107, the rotor sleeve 108, and the drive gear 97, which are unified, are attached to the drive shaft 144 by pressing the needle bearing 96, which it is mounted inside the rotor sleeve 108, over the needle bearing 96. After the housing body 90a is attached to the inner housing cover 90b, ball bearing 101, large gear 98, and intermediate shaft 100 are incorporated in the housing body 90a, and the driven gear 102 is fluted into the drive shaft 52. Then, after the other ball bearing is pressed over the drive shaft 52, the outer housing cover 90c is attached and fixed to the hello body 90a, and the cap 56 is secured and fixed to the outer housing cover 90c.
    [0056] Furthermore, an end portion of a connecting member 110 that extends in the front and rear direction is secured in the motor housing 90 by a screw 113. Specifically, an end portion of the connecting member 110 is secured in the body of housing 90a in front of the outer housing cover 90c. The other end portion of the connecting member 110 is coupled to a connecting shoulder 111 that extends from the rear portion of the second arm portion 7c of the swing arm 7, more specifically from the transverse portion 7d to the other side in the width direction of the vehicle , by a screw 112. In this way, the motor housing 90 is attached to the swing arm 7 via the connecting member 110, and the rear wheel WR is supported on a double-sided support structure by the first arm portion 7b of the arm swivel 7 on one side of the vehicle's wide direction and connecting member 110 connected to the swing arm 7. Furthermore, a lower surface 110a of the connecting member 110 is positioned higher than a lower surface 7f of the swing arm 7 (see figure 3).
    [0057] With the large motorcycle 1 that includes the above configuration, the driving force of the motor E is transmitted to the rear wheel WR through the driving shaft 66, the driving bevel gear 70, the driven bevel gear 74, the shaft of gear 73, the drive shaft 52, and the rear wheel 76. In addition, the driving force of the electric motor 63 is transmitted to the rear wheel WR through the drive gear 97 connected to the rotor sleeve 108, the large gear 98 , the small gear 99, the driven gear 102, the driving shaft 52, and the rear wheel 76. Furthermore, if the driving force is transmitted from the side of the driving wheel when the vehicle decelerates, the electric motor 63 it serves as a generator to generate a so-called regenerative braking force and recover the vehicle's kinetic energy as regenerative energy.
    [0058] As described above, with the hybrid saddle type vehicle 1, according to this modality, as the motor housing 90 is supported by the extension portion 52c extending from the portion 52b, on which the rear wheel WR is mounted , from the drive shaft 52 on the other side in the vehicle width direction through the pair of bearing sections 91, 91 and 92 arranged on both sides in the vehicle width direction, the electric motor 63 can be directly supported by the axis drive unit 52 with force, so that the power transmission mechanism can be configured without being necessary for the bevel gear or the speed reduction mechanism. In addition, as the rotor 94 is supported by the drive shaft 52 between the pair of bearing sections 91. 91 and 92 on both sides of the motor housing 90, the heavy rotor 94 can be reliably supported by the drive shaft 52 in a long amplitude. Furthermore, the drive mechanism for the electric motor 63 can be compact in size, and the design freedom of the electric motor 63 can be improved as much as the size becomes compact. In addition, the driving force of the electric motor 63 can be transmitted to the driving shaft 52 of the rear wheel WR without passing through a plurality of transmission mechanisms, thereby suppressing the loss of power in the transmission to a minimum.
    [0059] Also, as the rear wheel support member is supported oscillating on the body structure 2 through the articulation axle 6, it is possible to incorporate the electric motor 63 in the swing arm 7 in the hybrid saddle type vehicle 1 which includes the swing arm 7.
    [0060] As the motor housing 90 is arranged far back than the pivot shaft 6 of the swing arm 7 and far inward than the end portion 6a of the pivot shaft 6, the electric motor 63 does not project from the vehicle 1, but it is compactly arranged.
    [0061] Also, as the connecting member 110 is arranged far higher than the lower surface 7f of the swing arm 7, a height above the floor of the swing arm 7 can be adjusted to a minimum height above the floor H.
    [0062] The swing arm 7 includes the first arm portion 7b that extends from the support portion 7a, which is supported by the pivot axis 6, on the side of the rear wheel WR, the second arm portion 7c that extends forward of the rear wheel WR, and the transverse portion 7d, and the motor housing 90 and the swing arm 7 are connected to each other by the connecting member 110. As a result, the rear wheel WR is supported on the double-sided structure by means of this preventing distortion of the swing arm 7.
    [0063] The motor housing 90 includes the trough-shaped oil introduction rib 59 and the oil collection ribs 61 to collect the oil splash dispersed within it, and the drive shaft 52 includes the axial passage 53 and radial passageway 54 open near bearing section 91. Therefore, it is possible to effectively collect the oil splash dispersed within the motor housing 90 and supply it to the bearing sections 91 and 91 to lubricate the bearing sections.
    [0064] Also, as at least a portion of the bearing sections 91 and 91 that support the power transmission mechanism side of the motor housing 90 is arranged to overlap the outer hub 86 of the rear wheel 76 in the width direction of the vehicle , the bearing sections 91 and 91 are arranged close to the central portion of the vehicle body, thereby suppressing the vibration of the drive shaft 52.
    [0065] The rotor 94 is supported rotatable on the drive shaft 52, and the rotation of the rotor 94 is slowed by the speed reduction mechanism 103 disposed off the drive axis in the vehicle's wide direction, and then is transmitted to the axis drive 52. As a result, the heavy and large rotor 94 can be arranged between the pair of bearing sections 92, thereby suppressing the vibration of the drive shaft 52. SECOND MODE
    [0066] In the following, a hybrid saddle type vehicle according to a second embodiment of the inventions will be described with reference to Figures 8 and 9. The same reference numbers were used to identify the same or similar elements as those of the first embodiment , and its description will be omitted or summarized here.
    [0067] The hybrid saddle-type vehicle of this modality is a 1A scooter-type motorcycle that includes a single-oscillating internal combustion engine (hereinafter, referred to as a power unit) 120. As illustrated in Figure 8, the scooter 1A includes a cradle type 121 body structure, a front fork 123 mounted to a main tube 122 of the body structure 121, a front wheel WF and a front fender 124 which are attached to a lower end portion of the front fork 123, a handlebar 125 connected to an upper end portion of front fork 123, a fuel tank 115 arranged within a closed cradle space for each body structure structure 121, a reserve tank 116 for a radiator, a radiator 117, a power unit 120 arranged at the rear of the cradle space and which has a motor and a power transmission mechanism 130, a connection mechanism 118 for suspending a portion of rear end of power unit 120 of body structure 121, a rear shock absorber 119 for suspending a rear ex-tremor portion of power unit 120 of body structure 121, a rear wheel WR secured to a rear portion of power unit 120, a seat 126 disposed on an upper portion of the body structure 121, and a cover 127 that extends from a front portion of the body structure 121 to a rear portion over the entire length to cover desired portions of the vehicle including the upper and lower surfaces. bottom, front and rear surfaces, and left and right side surfaces.
    [0068] The portion of the cover 127 that extends from the central portion of the vehicle to the rear portion covers the engine E of the power unit 120, and a portion of an air filter 128, and is elongated backwards and obliquely upwards. The front end portion of the cover 127 is provided with a windshield 129 which covers the front of the handlebar 125.
    [0069] As shown in Figure 9, the power unit 120 is arranged on one side (right side in Figure 9) of the scooter-type motorcycle in a vehicle-wide direction, and transmits the power of the engine E to a drive shaft 144 of the WR rear wheel. In addition, an electric motor 63 is arranged on the other side (right side in Figure 9) of the rear wheel WR in the width direction of the vehicle to transmit the driving force to the rear wheel WR.
    [0070] The power unit 120 includes an E motor and a power transmission mechanism 130 to transmit the output from motor E to the rear wheel WR. The E motor is a camshaft internal combustion engine (OHC), and if a piston alternates within a cylinder, the reciprocating motion is converted into a rotational movement of a crankshaft 150 through a connecting rod. A left end of the crankshaft 150 is connected to a pulley on the drive side 151 of an automatic V-belt transmission 131.
    [0071] The power transmission mechanism 130 includes the automatic V-belt transmission 131, a centrifugal clutch 132, and a gear reduction device 133. A single oscillating gearbox 134 includes a gearbox unit 134a that accommodates the components above the power transmission mechanism therein, and a crankcase portion 134b covering a connecting rod of the engine E and the crankshaft 150 which is integrally formed with the gearbox unit. The single oscillating housing 134 is mounted oscillating on the body structure 121 by the connecting mechanism 118 through an articulation shaft 118a (see Figure 8).
    [0072] A primary shaft 136 is supported rotatable within the single oscillating housing 134 through a pair of ball bearings 135, and a pulley on the driven side 137 of the automatic V-belt transmission 131 is mounted pivotally on the primary shaft 136. A centrifugal clutch 132 is arranged on one side in the width direction of the vehicle, while a cylindrical gear 138 is provided on the other side in the width direction of the vehicle. In addition, an intermediate shaft 141 having a large diameter gear 139 and a small diameter gear 140 is pivotally supported within the unit oscillating housing 134 through a needle roller 142, and also a gear shaft portion 144a of the drive shaft 144 having a drive gear 143 is supported pivotally within the unit oscillating housing 134 through a pair of ball bearings 145. In this way, in the gear reduction device 133, the drive force transmitted to the cylindrical gear 138 is transmitted to the large diameter gear 139 and then it is also transmitted to the drive gear 143 which is engaged with the small diameter gear 140. The drive shaft 144 projects from the swingarm 134 towards the other side on the side side of the vehicle.
    [0073] A portion of the drive shaft 144 projecting from the single oscillating housing 134 is secured and secured to the drive shaft 144 by grooved assembly of an inner hub 85 of the rear wheel 76 on the drive shaft 144 and fixing a nut 147 on the drive shaft. In addition, an electric motor 63 including a rotor 94, a stator 95, and other components is attached to a portion 144c that extends from a portion 144b of drive shaft 144, on which the rear wheel WR is mounted, in the wide direction of the vehicle. The electric motor 63 has the same configuration as that of the first modality, and is arranged on the other side (right side in Figure 9) of the single oscillating box 134 in the vehicle's wide direction to transmit the driving force to the drive shaft 144 of the WR rear wheel.
    [0074] The motor housing 90 is supported on the portion 144c that extends on the other side of the drive shaft 144 in the width direction of the vehicle through the pair of bearing sections 91, 91 and 92 which are arranged on both their sides in the width direction of the vehicle. In addition, the motor housing 90 supported by the drive shaft 144 is disposed far back than the other end portion of the crankcase portion 134b of the swingarm unit 134 in the vehicle's wide direction, and far inward. the other end portion in the vehicle's wide direction (see Figure 9). Furthermore, a connecting member 110 connected to the motor housing 90 by a screw 113 is connected to a connecting protuberance 148 provided on the crankcase portion 134b. In this way, the rear wheel WR is supported on a double-sided structure by the gearbox portion 134a provided on one side of the unit swingarm 134 in the vehicle width direction, and the connecting member 110 connected to the swingarm 134 Although not shown, the bottom surface of the connecting member 110 is positioned far upwards than the bottom surface of the unit oscillating housing 134.
    [0075] With the motor scooter type 1A that includes the configuration above, the driving force of the motor E is transmitted to the rear wheel WR through the automatic transmission of V-belt 131, of the centrifugal clutch 132, of the reduction device gear 133, drive shaft 144, and rear wheel 76. In addition, the driving force of electric motor 63 is transmitted to the rear wheel WR via drive gear 97 connected to rotor sleeve 108, large gear 98, on small gear 99, driven gear 102, drive axle 144, and rear wheel 76. Furthermore, if the driving force is transmitted from the side of the drive wheel at the time of vehicle deceleration, electric motor 63 serves as a generator to generate a so-called regenerative braking force and recover the kinetic energy of vehicle 1A as regenerative energy.
    [0076] Consequently, with the motor scooter type 1A according to this modality, as the motor housing 90 is supported by the extension portion 144c that extends from the portion 144b, on which the rear wheel WR is mounted, of the drive axle 144 on the on the other side in the vehicle width direction through the pair of bearing sections 91, 91 and 92 arranged on both sides in the same direction in the vehicle width direction, the electric motor 63 can be directly supported by the attached drive shaft 144 with the force. In addition, as the rotor 94 is supported by the drive shaft 144 between the pair of bearing sections 91, 91 and 92, the heavy rotor 94 can be reliably supported by the drive shaft 144. Furthermore, the drive mechanism for the motor electric 63 can be compact in size, and the design freedom of the electric motor 63 can be improved as much as the size becomes compact. In addition, the driving force of the electric motor 63 can be transmitted to the driving axle 144 of the rear wheel WR without passing through a plurality of transmission mechanisms, thereby suppressing the loss of power in the transmission to a minimum.
    [0077] Another configuration and operation are the same as those of the first modality.
    [0078] The inventions are not limited to the modalities described above, and modifications and variations can be appropriately made. DESCRIPTION OF REFERENCE NUMBERS 1 Large motorcycle (Hybrid saddle type vehicle) 1A Motor scooter (Hybrid saddle type vehicle) 2 Body structure 6 Link axle 6th End portion 7 Swing arm (Rear wheel support member ) 7a Support portion 7b First arm portion 7c Second arm portion 7d Transverse portion 7f Lower surface 52, 144 Drive shaft 53 Axial passage 54 Radial passage 59 Oil introduction rib (Rib) 61 Oil collection rib (Rib ) 62, 130 Power transmission mechanism 63 Electric motor 76 Rear wheel 82 Wheel hub portion 85 Inner hub 86 External hub 90 Motor housing 91, 92 Ball bearing (Bearing portion) 94 Rotor 95 Stator 103 Reduction mechanism speed 110 Connecting member 110a Bottom surface 118 Connecting mechanism 121 Cradle type body structure (Body structure) 134 Single oscillating housing (Wheel support member rear) 134a Gearbox unit 134b Crankcase portion E Engine (Internal combustion engine) WR Rear wheel
    权利要求:
    Claims (9)
    [0001]
    1. Hybrid saddle type vehicle (1; 1 A) comprising: a rear wheel support member (7; 134) attached oscillating to a body structure (2; 121) and adapted to support a rear wheel (WR ); a power transmission mechanism (62; 130) configured to transmit power from an internal combustion engine (E) to a drive axle (52; 144) of the rear wheel (WR) from one side of the member rear wheel support (7; 134) in a vehicle-wide direction; and an electric motor (63) configured to transmit a driving force to the drive shaft (52; 144) from the other side of the rear wheel support member (7; 134) in the width direction, characterized by the the fact that the electric motor (63) includes a motor housing (90) that accommodates a stator (95) and a rotor (94) in it, and is fixed to the rear wheel support member (7; 134); wherein the motor housing (90) is supported, through a pair of bearing sections (91, 92) arranged on both sides of the motor housing (90) in the wide direction, over an extension portion (52c; 144c) extending on the other side in the wide direction so that the extension portion (52c; 144c) penetrates the rotor (94) from a portion of the drive shaft (52; 144) in which the rear wheel (WR ) is mounted and supported by the pair of bearing sections (91.92), and the rotor (94) is rotatable supported by the extension portion (52c; 144c) of the drive shaft (52; 144) between the pair of the bearing sections (91, 92), where the extension portion (52c; 144c) extends on the other side in the wide direction so that the extension portion (52c; 144c) penetrates the rotor (94) and reaches the pair of bearing sections (91.92).
    [0002]
    2. Hybrid saddle-type vehicle, comprising: a rear wheel support member (7, 134) attached to an oscillating body structure (2, 121) and adapted to support a rear wheel (WR); a power transmission mechanism (62, 130) configured to transmit power from an internal combustion engine (E) to a drive axle (52, 144) of the rear wheel (WR) from one side of the member rear wheel support (7, 134) in a vehicle-wide direction; and an electric motor (63) configured to transmit a driving force to the drive shaft (52, 144) from the other side of the rear wheel support member (7, 134) in the wide direction, characterized by the the fact that the electric motor (63) includes a motor housing (90) that accommodates a stator (95) and a rotor (94) in it and is fixed to the rear wheel support member (7; 134); wherein the motor housing (90) is supported in an extension portion (52c; 144c) that extends on the other side in the wide direction from a portion of the drive shaft (52; 144) in which the rear wheel ( WR) is mounted, through a pair of bearing sections (91, 92) arranged on both sides of the motor housing (90) in the wide direction, in which the rotor (94) is supported rotatable by the drive shaft ( 52; 144) between the pair of bearing sections (91,92), where the drive shaft (52; 144) is provided with an axial passage (53) extending in an axial direction from the other end portion thereof, and a radial passage (54) extending in a radial direction from the axial passage (53) and open close to the bearing section (91, 92) which is positioned in an intermediate portion of the drive shaft (52; 144), and where the motor housing (90) is provided with ribs (59) adapted to supply the oil splash dispersed in the motor housing (90) for the axial passage (53).
    [0003]
    3. Hybrid saddle-type vehicle (1, 1 A), comprising: a rear wheel support member (7, 134) attached oscillating to a body structure (2, 121) and adapted to support a wheel rear (WR); a power transmission mechanism (62, 130) configured to transmit power from an internal combustion engine (E) to a drive axle (52, 144) of the rear wheel (WR) from one side of the member rear wheel support (7, 134) in a vehicle-wide direction; and an electric motor (63) configured to transmit a driving force to the drive shaft (52, 144) from the other side of the rear wheel support member (7, 134) in the wide direction, characterized by the fact that the electric motor (63) includes a motor housing (90) that accommodates a stator (95) and a rotor (94) itself and is fixed on the rear wheel support member (7, 134); wherein the motor housing (90) is supported in an extension portion (52c; 144c) that extends on the other side in the wide direction from a portion of the drive shaft (52; 144) in which the rear wheel ( WR) is mounted, through a pair of bearing sections (91, 92) arranged on both sides of the motor housing (90) in the wide direction, in which the rotor (94) is supported rotatable by the drive shaft ( 52; 144) between the pair of bearing sections (91.92), where the rear wheel (WR) of the rear wheel (WR) includes a wheel hub portion (82) that has an inner cylindrical hub (85) provided on the drive shaft (52; 144) and an outer cylindrical hub (86) provided radially outward from the inner hub (85), and at least part of the bearing section that supports the motor housing (90) on one side the power transmission mechanism (62; 130) is arranged to overlap the outer hub (86) in the wide direction.
    [0004]
    4. Hybrid saddle-type vehicle according to any one of claims 1 to 3, characterized in that the rear wheel support member (7; 134) is an oscillating arm (7) supported oscillating on the structure of body (2) through an articulation shaft (6).
    [0005]
    5. Hybrid saddle type vehicle (1), according to vindication king 4, characterized by the fact that the motor housing (90) is arranged behind the articulation shaft (6) and within a portion end (6a) of the pivot shaft (6).
    [0006]
    6. Hybrid saddle type vehicle (1), according to vindication king 4 or 5, characterized by the fact that a connecting member (110) that connects the motor housing (90) and the swing arm (7) is arranged on top of a lower surface (7f) of the swing arm (7).
    [0007]
    7. Hybrid saddle type vehicle (1), according to vindication king 4, characterized by the fact that the swing arm (7) includes a first arm portion (7b) that extends from one side of a support portion (7a) supporting the pivot shaft (6) in the wide direction to a side side of the rear wheel (WR), a second arm portion (7c) extending from the other side of the support portion (7a) in the wide direction to the front of the rear wheel (WR), and a transverse portion (7d) that connects a rear portion of the second arm portion (7c) and the first arm portion (7b), and in which the connecting member (110) connecting the motor housing (90) and the swing arm (7) is connected to the rear portion of the second arm portion (7c) from which the transverse portion (7d) extends .
    [0008]
    8. Hybrid saddle type vehicle (1A) according to any one of claims 1 to 3, characterized by the fact that the rear wheel support member (7; 134) is a single-oscillating case ( 134) which is supported oscillating on the body structure (121) through a connection mechanism (118) and covers the internal combustion engine (E).
    [0009]
    9. Hybrid saddle type vehicle (1; 1A) according to any one of claims 1 to 8, characterized by the fact that the electric motor (63) still includes a speed reduction mechanism (103) that slows down the driving force and transmits it to the driving shaft (52; 144), and where the rotor (94) is supported rotatable around the driving shaft (52; 144), and the speed reduction mechanism (103) it is arranged on the other side of the drive shaft (52; 144) in the wide direction.
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    同族专利:
    公开号 | 公开日
    JP5404913B2|2014-02-05|
    EP2551181A4|2013-09-18|
    EP2551181A1|2013-01-30|
    EP2551181B1|2016-07-06|
    CN102822049B|2015-04-29|
    KR101444571B1|2014-09-24|
    CA2791184C|2014-10-28|
    US8746392B2|2014-06-10|
    KR20120132516A|2012-12-05|
    WO2011117967A1|2011-09-29|
    BR112012023831A2|2016-08-02|
    TW201206735A|2012-02-16|
    TWI471233B|2015-02-01|
    US20120325571A1|2012-12-27|
    CA2791184A1|2011-09-29|
    JPWO2011117967A1|2013-07-04|
    CN102822049A|2012-12-12|
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    法律状态:
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-05-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-06| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 06/10/2020, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/JP2010/054966|WO2011117967A1|2010-03-23|2010-03-23|Hybrid saddled vehicle|
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