WO2019186947A1 - 鞍乗型電動車両 - Google Patents
鞍乗型電動車両 Download PDFInfo
- Publication number
- WO2019186947A1 WO2019186947A1 PCT/JP2018/013422 JP2018013422W WO2019186947A1 WO 2019186947 A1 WO2019186947 A1 WO 2019186947A1 JP 2018013422 W JP2018013422 W JP 2018013422W WO 2019186947 A1 WO2019186947 A1 WO 2019186947A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor unit
- vehicle
- main frame
- motor
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
- B62M7/06—Motorcycles characterised by position of motor or engine with engine between front and rear wheels directly under the saddle or seat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/20—Arrangements of batteries characterised by the mounting
- B62J43/28—Arrangements of batteries characterised by the mounting hidden within the cycle frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/10—Arrangements of batteries for propulsion
- B62J43/16—Arrangements of batteries for propulsion on motorcycles or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
- B62K11/04—Frames characterised by the engine being between front and rear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J99/00—Subject matter not provided for in other groups of this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
- B62K19/36—Frame parts shaped to receive other cycle parts or accessories for attaching saddle pillars, e.g. adjustable during ride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
- B62K25/283—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay for cycles without a pedal crank, e.g. motorcycles
Definitions
- the present invention relates to a straddle-type electric vehicle.
- a straddle-type electric vehicle using an electric motor as a travel drive source a straddle-type electric vehicle equipped with a battery that supplies electric power to the electric motor and a control unit that controls electric power supplied from the battery to the electric motor is provided.
- Known for example, Patent Document 1.
- the cruising distance depends on the capacity of the battery. Therefore, it is desired to secure a space that can accommodate a larger battery.
- An object of the present invention is to provide a straddle-type electric vehicle capable of ensuring a larger battery storage space.
- a head pipe that supports a steering mechanism for steering the front wheels;
- a main frame connected to the head pipe and extending in the vehicle longitudinal direction;
- a motor unit having an electric motor that outputs the rotational driving force of the rear wheel;
- a battery for supplying power to the motor unit;
- a swing arm that is swingably supported on a pivot shaft provided on the main frame and rotatably supports the rear wheel;
- a straddle-type electric vehicle equipped with The motor unit and the battery are supported by the main frame between the front wheel and the rear wheel,
- the main frame includes a pair of left and right parts,
- the motor unit is positioned between the pair of left and right parts when viewed from the top of the vehicle, and is disposed so as to overlap the main frame when viewed from the side of the vehicle;
- the motor shaft of the electric motor is disposed above the pivot shaft and rearward in the vehicle front-rear direction.
- a straddle-type electric vehicle is provided.
- FIG. 2 is a cross-sectional view taken along a line II in FIG. 1 and a part of the configuration is omitted. It is a front view of the motor unit concerning one embodiment, and is a figure showing the outline of a motor unit. It is a rear view of the motor unit of FIG.
- FIG. 5 is a top view of the motor unit of FIG.
- FIG. 4 is a left side view of the saddle riding type electric vehicle, and is a diagram showing an arrangement region of the motor unit.
- the left view of the straddle-type electric vehicle which concerns on other embodiment.
- arrows X, Y, and Z indicate directions orthogonal to each other
- the X direction is the longitudinal direction of the saddle riding type vehicle
- the Y direction is the vehicle width direction (left and right direction) of the saddle riding type vehicle
- the Z direction is the vertical direction.
- the front or rear in the front-rear direction of the straddle-type vehicle may be simply referred to as front or rear
- the inside or the outside in the vehicle width direction (left-right direction) of the straddle-type vehicle may be simply referred to as inside or outside.
- what is provided by a pair of right and left what was demonstrated in either of right and left may not show illustration or description about the other.
- FIG. 1 is a left side view of a saddle riding type electric vehicle 1 according to an embodiment of the present invention.
- FIG. 1 is a schematic view mainly showing the main part of the saddle riding type electric vehicle 1.
- the saddle riding type electric vehicle 1 may be referred to as a vehicle 1.
- the vehicle 1 is a vehicle body frame 10 that includes a head pipe 11 provided at the front of the vehicle, a main frame 12 connected to the head pipe 11 and extending in the front-rear direction, a down frame 13 extending in the front-rear direction below the main frame 12, and a main frame 12 A seat frame 14 extending rearward from the frame 12 is included.
- the main frame 12 and the down frame 13 are connected to each other at their rear ends.
- the main frame 12 of the present embodiment includes a main frame 12L extending from the head pipe 11 through the left side of the vehicle 1 and a main frame 12R extending from the head pipe 11 through the right side of the vehicle 1, and these frame portions are It is formed spaced apart in the vehicle width direction (left and right).
- the main frames 12L and 12R include a pair of left and right backbone frames 123L and 123R and a pair of left and right pivot frames 124L and 124R, respectively.
- the backbone frame 123 of the present embodiment includes an upper portion 123a extending from the upper part of the head pipe 11 to the rear of the vehicle and a lower portion 123b extending from the lower part of the head pipe 11 to the rear of the vehicle.
- the upper portion 123a and the lower portion 123b are connected at the rear end portion 126 of the backbone frame 123, and are also connected at an intermediate position.
- the main frame 12 is divided into left and right from the head pipe 11 and extends obliquely rearwardly under the vehicle, and the main frame 12 is formed divided into main frames 12L and 12R over the entire area.
- a configuration in which a single frame portion extends rearward from the head pipe 11 and then branches to the left and right, or a configuration that does not branch can be employed.
- the backbone frame 123 has an upper part 123a extending from the upper part of the head pipe 11 and a lower part 123b extending from the lower part to the left and right.
- a configuration extending rearward can also be employed.
- the pair of left and right pivot frames 124L and 124R are formed to extend downward from the rear ends 126 of the backbone frames 123L and 123R, respectively, and are connected to the rear ends of the down frame 13 at the lower ends thereof.
- the backbone frame 123 and the pivot frame 124 may be formed integrally, or may be formed separately and joined by metallurgical joining such as welding or mechanical joining such as bolt fastening.
- the pair of left and right down frames 13L and 13R are provided to extend in the vehicle front-rear direction below the main frame 12.
- the down frames 13L and 13R extend downward from the lower portion of the main frame 12, extend rearward from the lower ends thereof, and are connected to the lower ends of the pivot frames 124L and 124R, respectively.
- the down frame 13 extends downward from the lower portion of the main frame 12, but a configuration extending downward from the head pipe 11 can also be employed.
- the down frame 13 is divided into a down frame 13L and a down frame 13R throughout, but is formed so as to extend downward in a single frame from the head pipe 11 or the main frame 12 and then branch left and right. It is also possible to adopt a configuration.
- the seat frame 14 is provided so as to extend rearward from the main frames 12L and 12R, and includes a pair of left and right seat rails 141 that support the seat 4.
- a pair of left and right support frames 142 connected to the main frame 12 and the pair of left and right seat rails 141 are provided below the pair of left and right seat rails 141.
- the pair of left and right support frames 142 are provided with attachment portions 143 to which the pair of left and right rear suspensions 21 are attached.
- the rear suspension 21 is provided in a pair of left and right, but a link type suspension in which a single rear suspension and the rear swing arm 19 are connected via a link is used as a motor unit 30 and a rear wheel. You may provide between RW.
- the head pipe 11 supports a steering mechanism 18 for steering the front wheels FW.
- the steering mechanism 18 includes a steering stem 181 that is rotatably supported by the head pipe 11, and a top bridge 182 and a bottom bridge 183 are attached to an upper end portion and a lower end portion thereof, respectively.
- the top bridge 182 is provided with a handle 184 for the driver to steer the front wheels FW.
- a pair of left and right front forks 185 are supported by the top bridge 182 and the bottom bridge 183.
- the front fork 185 extends obliquely forward under the vehicle, and a front wheel is rotatably supported at the lower end.
- the rear swing arm 19 is swingably supported by a pivot shaft 125 provided on the pivot frame 124 at the front end thereof.
- a rear wheel RW is rotatably supported at the rear end of the rear swing arm 19, and the rear wheel RW is rotationally driven by a chain 23 wound around the drive sprocket 323 of the motor unit 30 and the driven sprocket 22 of the rear wheel RW.
- the rear swing arm 19 includes a pair of left and right parts, and has support portions 191 that support the pair of left and right rear suspensions 21 at the upper part thereof, and the swinging of the rear swing arm 19 is attenuated by the rear suspension 21.
- FIG. 3 is a front view of the motor unit 30 and shows an outline of the motor unit 30.
- FIG. 4 is a top view of the motor unit 30 and shows an outline of the inside.
- FIG. 5 is a top view of the motor unit 30 and shows an outline of the inside.
- the motor unit 30 includes an electric motor 31 that outputs the rotational driving force of the drive sprocket 323. Moreover, the electric motor 31 is accommodated in the motor accommodating part 31a. In the case of this embodiment, the axial direction of the motor shaft 311 of the electric motor coincides with the vehicle width direction, and the front surface on which the drive sprocket 323 that is the output portion of the motor unit 30 is disposed is disposed to face the left side.
- the motor unit 30 includes a speed reducing unit 32 that decelerates the rotational driving force of the electric motor 31.
- the speed reduction part 32 outputs a rotation driving force after being decelerated by the reduction gear 32b, a reduction gear 32b that decelerates the rotation of the case 32a that protrudes outward in the vehicle width direction from the motor housing part 31a, and the motor shaft 311.
- a shaft 322 is included. In the case of this embodiment, the output shaft 322 is provided forward and downward in the vehicle front-rear direction with respect to the motor shaft 311.
- a drive sprocket 323 is attached to the output shaft 322 of the speed reduction unit 32.
- An oil pan 33 is formed at the bottom of the motor unit 30, and oil stored in the oil pan 33 is sucked and discharged by the oil pump 34 to lubricate and cool the motor unit 30.
- the oil supplied to each part in the motor unit 30 is returned to the oil pan 33 by natural dripping or the like.
- the motor unit 30 has a breather chamber 37 that communicates the inside and outside of the motor unit 30 and separates the gas and liquid from the upper part and the side where the speed reduction part 32 is disposed. Further, the motor unit 30 includes an oil filter 36 and purifies oil circulating in the motor unit 30.
- the battery 16 stores electric power supplied to the motor unit 30.
- the control unit 40 uses the battery 16 as a power source to perform power supply control (drive control) to the motor unit 30, particularly the electric motor 31, according to the driver's accelerator operation or the like.
- the motor unit 30 and the control unit 40 are connected by an electrical connection member 42, and power is supplied from the control unit 40 to the motor unit 30 via the electrical connection member 42.
- the electric wire is employ
- the motor unit 30 and the control unit 40 generate heat when driven, but are cooled by the heat exchanger 24 and the cooling medium that circulates them, and are prevented from reaching a high temperature.
- the housing portion 10 a of the battery 16 is mainly defined by the main frame 12 and the down frame 13.
- the left side of the housing portion 10a in the vehicle width direction is defined by connecting the head pipe 11, the main frame 12L, and the down frame 13L in a loop shape.
- the main frame 12R and the down frame 13R are defined in a loop shape.
- Such a frame loop can enhance the protection performance of the side surface of the battery 16.
- the lower limit in the vertical direction of the housing portion 10 a is defined by the down frame 13, and the upper side is defined by the cover member 17 while being open as the body frame 10.
- the battery 16 is disposed between the backbone frames 123L and 123R in a top view of the vehicle, and is supported by the backbone frames 123L and 123R and the down frames 13L and 13R via a fixing structure (not shown). Only the battery 16 is disposed so as to protrude above the backbone frame 123 while being covered with the cover member 17. As for the battery 16, a larger battery can be mounted by projecting upward from the backbone frame 123.
- the motor unit 30 is disposed so as to overlap the main frame 12 in a side view of the vehicle, the motor shaft 311 of the electric motor is above the pivot shaft 125 provided on the pivot frame 124, and the vehicle It is arranged rearward in the front-rear direction. Therefore, since the space between the main frames 12 in the housing portion 10a is used as the arrangement space for the motor unit 30, the remaining space can be used as the battery housing space.
- the motor unit 30 is disposed so as to overlap the rear portion of the backbone frame 123 and the pivot frame 124.
- the motor unit 70 can be arranged further rearward, and the front portion of the accommodating portion 10 a can be made larger as the accommodating space for the battery 16. Further, the battery 16 can be disposed up to the vicinity of the lower end defined by the down frame 13 in the front portion of the housing portion 10a. Therefore, the battery 16 can be arranged close to the lower side, and the center of gravity can be lowered.
- the motor shaft 311 is disposed above and behind the pivot shaft 125, a part of the motor unit 30 is disposed outside the housing portion 10a. More space can be used as a storage space for the battery 16. Further, since the motor shaft 311 is disposed behind the pivot shaft 125, the heavy battery 16 can be disposed in the center of the main frame 12, and the center of gravity of the vehicle in the front-rear direction can be further centered. . Furthermore, by arranging the motor shaft 311 above the pivot shaft 125, the motor unit 30 can be protected from flying objects such as stepping stones and other disturbances.
- the motor unit 30 overlaps with the backbone frame 123 and the pivot frame 124 in a side view of the vehicle, but a configuration in which only the backbone frame 123 or only the pivot frame 124 overlaps may be employed.
- FIG. 6 is a left side view of the saddle riding type electric vehicle, and is a diagram showing an arrangement region of the motor unit.
- the motor shaft 311 of the motor unit 30 is disposed inside a region A surrounded by the backbone frame 123, the seat rail 141, and the support frame 142 in a vehicle side view.
- the motor unit 30 can be arranged in the space under the seat 4, and the space in the housing portion 10 a can be made larger as the housing space for the battery 16.
- the motor unit 30 is disposed so as to overlap the support frame 142 below the seat rail 141 in a side view of the vehicle, but is configured to overlap the seat rail 141 above the support frame 142.
- a configuration that overlaps both the seat rail 141 and the support frame 142 may be employed.
- the motor unit 30 has a motor shaft 311 disposed behind the pivot shaft 125 and an output shaft 322 disposed forward of the pivot shaft 125. That is, the pivot shaft 125 is provided between the motor shaft 311 and the output shaft 322 in the vehicle longitudinal direction. Further, in the case of the present embodiment, the axle of the rear wheel RW is in a position when the driver is in the vehicle 1 and is standing upright (without applying the acceleration / deceleration force to the vehicle body).
- the pivot shaft 125 and the output shaft 322 are arranged on the same straight line (on the straight line L in FIG. 1). By arranging these in the same straight line, power transmission efficiency can be improved.
- the motor unit 30 is disposed so that the oil pan 33 protrudes rearward from the main frame 12 in a vehicle side view. Therefore, traveling wind or the like easily hits the oil pan 33, and the oil cooling efficiency can be improved.
- the motor unit 30 is arranged such that the oil pan 33 protrudes rearward from the pivot frame 124 and downward from the support frame 142 in a vehicle side view. Therefore, traveling wind or the like is easily hit by the oil pan 33, and the oil cooling efficiency can be further improved.
- control unit 40 is disposed close to the upper side of the motor unit 30 in a side view of the vehicle. Since the motor unit 30 and the control unit 40 are disposed close to each other, the electrical connection member 42 that connects them can be shortened.
- the electrical connection member 42 is provided on the motor-side connection portion 38 provided on the rear surface of the motor unit 30 (the surface facing the vehicle right side when assembled) and the surface of the control unit 40 facing the vehicle right side.
- the control unit side connection unit 48 is connected.
- the connection position of the electrical connection member 42 is not limited to this, and the electrical connection member 42 can be shortened by connecting the upper surface of the motor unit 30 and the lower surface of the control unit 40, for example.
- the control unit 40 is disposed so as to overlap the seat rail 141 in a vehicle side view. Therefore, the side of the control unit 40 can be protected.
- a resolver 35 that detects the rotation angle of the electric motor 31 is provided inside the motor unit 30. Further, the upper part of the motor unit 30 and the surface facing the lower side of the control unit 40 are connected by a wire harness 352 capable of transmitting an electric signal. An electrical signal based on the detection result of the resolver 35 is transmitted from the motor unit 30 to the control unit 40 via the wire harness 352. Since the wire harness 352 is provided on the upper portion of the surface of the motor unit 30 facing the front of the vehicle, the wire harness 352 can be disposed avoiding the swingable range of the rear swing arm 19. Moreover, since the wire harness 352 is connected above the motor unit 30, submergence or the like can be prevented.
- the motor unit 30 is disposed between the seat rails 141 in a vehicle top view. Since the motor unit 30 is disposed between the seat rails 141 when viewed from the top of the vehicle, interference between the motor unit 30 and the occupant's legs can be prevented when the occupant grips with the legs.
- the motor unit 30 is fixed to an attachment portion 128 provided on the backbone frame, an attachment portion 129 provided on the pivot frame 124, and an attachment portion 143 provided on the support frame 142. Since the motor unit 30 is supported by the highly rigid body frame 10 at the three points of the attachment portion 128, the attachment portion 129, and the attachment portion 143, the attachment rigidity of the motor unit 30 can be improved. Further, since the surface of the motor unit 30 facing the vehicle width direction is surrounded by the body frame 10, the protection performance of the surface of the motor unit 30 facing the vehicle width direction can be enhanced.
- the motor unit 30 has through holes 301, 302, and 303 at positions corresponding to the attachment portions 128, 129, and 143.
- a fixing member 501 can be attached to the attachment portion 128 so as to cross the backbone frames 123L and 123R in the vehicle width direction.
- the motor unit 30 is fixed to the backbone frame 123 by attaching the fixing member 501 to the attachment portion 128 in a state of passing through the through hole 301.
- the motor unit 30 is fixed to the pivot frame 124 by attaching the fixing member 502 to the attachment portion 129 in a state of passing through the through hole 302.
- the motor unit 30 is fixed to the support frame 142 by attaching the fixing member 503 to the attachment portion 143 in a state of passing through the through hole 303.
- various mounting structures can be employed in addition to the above configuration, for example, fixing to a pair of left and right parts of each frame by bolt fastening or the like. .
- the motor unit 30 is fixed to each attachment portion of the backbone frame 123, the pivot frame 124, and the support frame 142, but the configuration of the frame in which the attachment portion is provided is not limited thereto.
- a configuration in which two attachment portions are provided on the backbone frame 123 and a single attachment portion on the support frame 142, or a configuration in which two attachment portions are provided on the pivot frame 124 and the support frame 142 can be adopted.
- the mounting portion may be provided not on the support frame 142 but on the seat rail 141.
- a configuration in which a mounting portion is provided by extending a bracket or the like from each frame can be employed.
- control unit 40 is sandwiched by the pivot frame 124 via a fixing structure (not shown) at a portion overlapping the seat rail 141 in a side view of the vehicle. Therefore, the control unit 40 can be arranged in the space under the seat, and the storage portion 10a can be made larger as a storage space for the battery 16. Further, since the control unit 40 is sandwiched between the seat rails 141 having high rigidity, the mounting rigidity of the control unit 40 can be improved.
- the heat exchanger 24 according to the present embodiment is a radiator, and the cooling medium is cooling water (coolant).
- the cooling medium cooled by the heat exchanger 24 circulates through the first tubular member 251 to the motor unit.
- the first tubular member 251 extends rearward from the heat exchanger 24 along the backbone frame 123 ⁇ / b> R, then extends upward and extends along the lower surface of the control unit 40, and then is connected to the motor unit 30.
- a water jacket is formed on the back surface of the motor unit 30 (the surface opposite to the surface on which the speed reducing portion 32 and the like are provided), and the motor unit 30 is cooled by passing the cooling medium through the water jacket.
- the cooling medium that has passed through the water jacket is circulated to the heat exchanger 24 through the inside of the second tubular member 252.
- the second tubular member 252 extends along the motor unit 30 backbone frame 123R and is connected to the heat exchanger. That is, the circulation path 25 includes the first tubular member 251, the motor unit 30, and the second tubular member 252, and the cooling medium passes through the circulation path 25 in the order of the heat exchanger 24, the motor unit 30, and the heat exchanger 24. Circulate.
- the first tubular member 251 and the second tubular member 252 pass through the side of the battery 16 at a portion extending along the backbone frame 123. Therefore, the cooling medium can cool the battery 16 when passing through the first tubular member 251 and the second tubular member 252. Further, since the first tubular member 251 extends along the lower surface of the control unit, the cooling medium can cool the control unit 40 when passing through the inside of the first tubular member 251.
- the first tubular member 251 and the second tubular member 252 are flexible hoses, but, for example, a pipe-shaped metal member can also be employed.
- the heat exchanger 24 is a radiator, but an oil cooler can also be used.
- the oil cooler is employed, the first tubular member 251 and the second tubular member 252 are connected to the inside of the motor unit 30, and oil as a cooling medium can also serve as lubrication inside the motor unit 30.
- FIG. 7 is a view showing an arrangement configuration of a rear suspension 71 according to another embodiment.
- a single rear suspension 71 is provided behind the motor unit 70 in the vehicle front-rear direction as a shock absorber that attenuates the swing of the swing arm 79.
- the rear suspension 71 is attached to an upper attachment portion 743 provided in the motor unit 70 at an upper portion thereof.
- the upper mounting portion 743 is fixed to the support frame 142 by a fixing structure (not shown) while supporting the rear suspension 71.
- the rear suspension 71 is attached to lower attachment portions 791 and 792 provided on the swing arm 79 at the lower portion thereof.
- the rear swing arm 71 and the swing arm 79 are disposed so as to partially overlap each other when viewed from the side of the vehicle. In the overlapping portion, the rear suspension 71 is disposed between a pair of left and right portions of the rear swing arm 79.
- the rear suspension 71 since a single rear suspension 71 can be mounted, the number of components can be reduced. Further, since the rear suspension 71 is disposed between the pair of left and right parts of the rear swing arm 79, the rear suspension 71 can be disposed near the center in the vehicle width direction, and the vehicle suppresses the protrusion of the component parts to the outside of the assault. be able to. Further, by providing the motor unit 70 with the upper mounting portion 743, the rear suspension 71 is disposed in the vicinity of the motor unit 70. Therefore, the motor unit 70 and the rear suspension 71, which are heavy objects, can be centrally arranged near the center in the vehicle front-rear direction, so that the stability of the vehicle can be improved.
- the swing arm 79 has two lower mounting portions, but a configuration in which the rear suspension 71 is supported at one location can also be adopted.
- the said embodiment discloses at least the following vehicles.
- the straddle-type electric vehicle of the above embodiment includes a front wheel (e.g. FW) and a rear wheel (e.g. RW), A head pipe (for example, 11) that supports a steering mechanism that steers the front wheels; A main frame (for example, 12) connected to the head pipe and extending in the vehicle longitudinal direction; A motor unit (e.g., 30) having an electric motor that outputs the rotational driving force of the rear wheel; A battery for supplying power to the motor unit (for example, 16), A swing arm (e.g., 19) that is swingably supported on a pivot shaft (e.g., 125) provided on the main frame, and that rotatably supports the rear wheel; A straddle-type electric vehicle (for example, 1), The motor unit and the battery are supported by the main frame between the front wheel and the rear wheel, The main frame includes a pair of left and right parts (e.g., 12L, 12R), The motor unit is positioned between the pair of left and right parts when viewed from the top of
- the motor unit is arranged between the main frames, the remaining space can be made larger as a battery accommodating space. Therefore, it is possible to provide a straddle-type electric vehicle that can secure a larger battery storage space.
- the motor shaft is disposed behind the pivot shaft, the heavy battery can be disposed at the center of the main frame.
- the straddle-type electric vehicle of the embodiment further includes a pair of left and right seat frames (for example, 14) extending in the vehicle front-rear direction from the pair of left and right parts of the main frame, In the vehicle side view, the motor unit is disposed so as to overlap the pair of left and right seat frames,
- the seat frame is provided with a motor unit fixing portion (for example, 143) that supports the motor unit.
- the support rigidity of the motor unit can be increased.
- the straddle-type electric vehicle of the above embodiment further includes a control unit (for example, 40) that performs drive control of the motor unit
- the seat frame includes a seat rail (e.g., 141) and a support frame (e.g., 142) that extends rearward from the main frame below the seat rail,
- the motor unit is supported by the support frame;
- the control unit is supported by the seat rail above the motor unit.
- control unit since the control unit is disposed close to the upper side of the motor unit, these connecting members can be shortened. Further, since both the motor unit and the control unit are supported by the seat frame, it is possible to suppress a relative phase shift, prevent disconnection of the connecting member, and increase the support rigidity thereof. Can do.
- the motor unit has a speed reducing portion (for example, 32),
- the reduction unit includes a reduction gear (e.g., 32b) that reduces the rotational driving force of the electric motor, and an output shaft (e.g., 322) that outputs the rotational driving force decelerated by the reduction gear,
- the motor shaft is disposed in a region (for example, A) surrounded by the main frame, the seat rail, and the support frame in a vehicle side view,
- the output shaft is disposed in front of the pivot shaft in the vehicle longitudinal direction.
- the remaining space can be made larger as the battery accommodating space.
- an oil pan (for example, 33) is provided at the lower part of the motor unit, The oil pan is disposed so as to protrude rearward of the main frame in the vehicle front-rear direction.
- the oil pan is disposed so as to protrude rearward of the main frame, the oil pan can easily hit the traveling wind and the like, and the oil cooling efficiency can be improved.
- a pair of left and right pivot frames (for example, 124L and 124R) are configured at the rear of the main frame, At least a part of the motor unit is disposed between the pair of left and right pivot frames.
- the motor unit can be arranged further rearward, the front area can be made larger as a battery accommodating space.
- a lower attachment portion (for example, 791, 792) to which a lower portion of a shock absorber is attached is disposed on the swing arm,
- the motor unit includes an upper mounting portion (for example, 743) to which the upper portion of the shock absorber is mounted.
- the rear suspension 71 is arranged close to the motor unit by providing the motor unit with the upper mounting portion. Therefore, the motor unit and the rear suspension, which are heavy objects, can be centrally arranged near the center in the vehicle front-rear direction, so that the stability of the vehicle can be improved.
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Abstract
Description
前輪および後輪と、
前記前輪を操舵する操舵機構を支持するヘッドパイプと、
該ヘッドパイプに接続し車両前後方向に延びるメインフレームと、
前記後輪の回転駆動力を出力する電動モータを有するモータユニットと、
前記モータユニットに電力を供給するバッテリと、
前記メインフレームに設けたピボット軸に揺動可能に支持され、前記後輪を回転可能に支持するスイングアームと、
を備えた鞍乗型電動車両であって、
前記モータユニットおよび前記バッテリが、前記前輪と前記後輪との間において、前記メインフレームに支持され、
前記メインフレームは、左右一対の部分を含み、
前記モータユニットが、車両上面視で前記左右一対の部分の間に位置し、車両側面視で前記メインフレームと重なるように配置され、
前記電動モータのモータ軸が、前記ピボット軸より上方、かつ、車両前後方向で後方に配置されている、
ことを特徴とする鞍乗型電動車両が提供される。
図1は本発明の一実施形態に係る鞍乗型電動車両1の左側面図である。同図は鞍乗型電動車両1の要部を中心に表した概略図である。以下、鞍乗型電動車両1のことを車両1と呼ぶ場合がある。
本実施形態のバックボーンフレーム123は、ヘッドパイプ11の上部から車両斜下後方に延びる上側部分123aとヘッドパイプ11の下部から車両斜下後方に延びる下側部分123bとを含む。上側部分123aと下側部分123bとはバックボーンフレーム123の後端部126において接続され、また、途中の部位でも接続されている。このような構成とすることで、軽量化を図りつつ、メインフレーム12の剛性を高めることができる。
図1および図2を参照する。本実施形態の場合、バッテリ16の収容部10aが主にメインフレーム12、ダウンフレーム13により画定されている。収容部10aの車幅方向の左側については、本実施形態の場合、ヘッドパイプ11、メインフレーム12L、ダウンフレーム13Lをループ状に連結することで規定され、右側についても、同様に、ヘッドパイプ11、メインフレーム12R、ダウンフレーム13Rをループ状に連結することで規定されている。このようなフレームのループによって、バッテリ16の側面の保護性能を高めることができる。収容部10aの上下方向の下限はダウンフレーム13で規定され、上側は車体フレーム10としては開放される一方、カバー部材17により規定されている。
上記実施形態では、リアサスペンションが左右一対に設けられているが、単一のリアサスペンションが設けられる構成も採用可能である。図7は他の実施形態に係るリアサスペンション71の配置構成を示す図である。
上記実施形態は、以下の車両を少なくとも開示する。
前記前輪を操舵する操舵機構を支持するヘッドパイプ(例えば11)と、
該ヘッドパイプに接続し車両前後方向に延びるメインフレーム(例えば12)と、
前記後輪の回転駆動力を出力する電動モータを有するモータユニット(例えば30)と、
前記モータユニットに電力を供給するバッテリ(例えば16)と、
前記メインフレームに設けたピボット軸(例えば125)に揺動可能に支持され、前記後輪を回転可能に支持するスイングアーム(例えば19)と、
を備えた鞍乗型電動車両(例えば1)であって、
前記モータユニットおよび前記バッテリが、前記前輪と前記後輪との間において、前記メインフレームに支持され、
前記メインフレームは、左右一対の部分(例えば12L,12R)を含み、
前記モータユニットが、車両上面視で前記左右一対の部分の間に位置し、車両側面視で前記メインフレームと重なるように配置され、
前記電動モータのモータ軸(例えば311)が、前記ピボット軸より上方、かつ、車両前後方向で後方に配置されている。
車両側面視で、前記モータユニットが前記左右一対のシートフレームと重なるように配置され、
前記シートフレームに、前記モータユニットを支持するモータユニット固定部(例えば143)が設けられている。
前記シートフレームは、シートレール(例えば141)と、該シートレールより下側において前記メインフレームから後方に延びるサポートフレーム(例えば142)とを含み、
前記モータユニットが、前記サポートフレームに支持され、
前記制御ユニットが、前記モータユニットの上方において前記シートレールに支持されている。
前記減速部は、前記電動モータの回転駆動力を減速するリダクションギア(例えば32b)と、該リダクションギアによって減速された回転駆動力を出力する出力軸(例えば322)と、を含み、
前記モータ軸が、車両側面視で、前記メインフレーム、前記シートレールおよび前記サポートフレームによって囲まれる領域(例えばA)に配置され、
前記出力軸が、車両前後方向で前記ピボット軸より前方に配置されている。
前記オイルパンは、車両前後方向で前記メインフレームの後方に突出して配置されている。
前記左右一対のピボットフレームの間に少なくとも前記モータユニットの一部が配置されている。
前記モータユニットには前記緩衝機の上部が取り付けられる上部取付部(例えば743)が構成される。
Claims (7)
- 前輪および後輪と、
前記前輪を操舵する操舵機構を支持するヘッドパイプと、
該ヘッドパイプに接続し車両前後方向に延びるメインフレームと、
前記後輪の回転駆動力を出力する電動モータを有するモータユニットと、
前記モータユニットに電力を供給するバッテリと、
前記メインフレームに設けたピボット軸に揺動可能に支持され、前記後輪を回転可能に支持するスイングアームと、
を備えた鞍乗型電動車両であって、
前記モータユニットおよび前記バッテリが、前記前輪と前記後輪との間において、前記メインフレームに支持され、
前記メインフレームは、左右一対の部分を含み、
前記モータユニットが、車両上面視で前記左右一対の部分の間に位置し、車両側面視で前記メインフレームと重なるように配置され、
前記電動モータのモータ軸が、前記ピボット軸より上方、かつ、車両前後方向で後方に配置されている、
ことを特徴とする鞍乗型電動車両。 - 前記メインフレームの前記左右一対の部分から車両前後方向に延びる左右一対のシートフレームをさらに備え、
車両側面視で、前記モータユニットが前記左右一対のシートフレームと重なるように配置され、
前記シートフレームに、前記モータユニットを支持するモータユニット固定部が設けられている、
ことを特徴とする請求項1に記載の鞍乗型電動車両。 - 前記モータユニットの駆動制御を行う制御ユニットをさらに備え、
前記シートフレームは、シートレールと、該シートレールより下側において前記メインフレームから後方に延びるサポートフレームとを含み、
前記モータユニットが、前記サポートフレームに支持され、
前記制御ユニットが、前記モータユニットの上方において前記シートレールに支持されている、
ことを特徴とする請求項2に記載の鞍乗型電動車両。 - 前記モータユニットは、減速部を有し、
前記減速部は、前記電動モータの回転駆動力を減速するリダクションギアと、該リダクションギアによって減速された回転駆動力を出力する出力軸と、を含み、
前記モータ軸が、車両側面視で、前記メインフレーム、前記シートレールおよび前記サポートフレームによって囲まれる領域に配置され、
前記出力軸が、車両前後方向で前記ピボット軸より前方に配置されている、
ことを特徴とする請求項3に記載の鞍乗型電動車両。 - 前記モータユニットの下部にオイルパンが設けられ、
前記オイルパンは、車両前後方向で前記メインフレームの後方に突出して配置されている、
ことを特徴とする請求項1ないし4のいずれか1項に記載の鞍乗型電動車両。 - 前記メインフレームの後部には左右一対のピボットフレームが構成され、
前記左右一対のピボットフレームの間に少なくとも前記モータユニットの一部が配置されている、
ことを特徴とする請求項1に記載の鞍乗型電動車両。 - 前記スイングアームには緩衝機の下部が取り付けられる下部取付部が配置され、
前記モータユニットには前記緩衝機の上部が取り付けられる上部取付部が構成される、
ことを特徴とする請求項1に記載の鞍乗型電動車両。
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| JP2020508743A JP6977149B2 (ja) | 2018-03-29 | 2018-03-29 | 鞍乗型電動車両 |
| DE112018007383.1T DE112018007383B4 (de) | 2018-03-29 | 2018-03-29 | Elektrisches fahrzeug vom grätschsitztyp |
| PCT/JP2018/013422 WO2019186947A1 (ja) | 2018-03-29 | 2018-03-29 | 鞍乗型電動車両 |
| CN201880091163.1A CN111867927B (zh) | 2018-03-29 | 2018-03-29 | 跨骑型电动车辆 |
| US17/014,886 US11492075B2 (en) | 2018-03-29 | 2020-09-08 | Straddle type electric vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021066293A (ja) * | 2019-10-21 | 2021-04-30 | ヤマハ発動機株式会社 | 鞍乗型電動車両 |
| US11492075B2 (en) | 2018-03-29 | 2022-11-08 | Honda Motor Co., Ltd. | Straddle type electric vehicle |
| US20230078780A1 (en) * | 2020-02-21 | 2023-03-16 | Honda Motor Co., Ltd. | Saddle-ride type vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11142285B2 (en) * | 2017-09-11 | 2021-10-12 | Honda Motor Co., Ltd. | Electric motorcycle |
| TWI778458B (zh) * | 2020-11-26 | 2022-09-21 | 光陽工業股份有限公司 | 電動機車 |
| JP7637175B2 (ja) * | 2023-03-31 | 2025-02-27 | 本田技研工業株式会社 | 電動車両 |
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- 2018-03-29 DE DE112018007383.1T patent/DE112018007383B4/de active Active
- 2018-03-29 JP JP2020508743A patent/JP6977149B2/ja active Active
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| JPH04151389A (ja) * | 1990-10-11 | 1992-05-25 | Honda Motor Co Ltd | 電動機付き二輪車の駆動装置 |
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| US20230078780A1 (en) * | 2020-02-21 | 2023-03-16 | Honda Motor Co., Ltd. | Saddle-ride type vehicle |
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| JP6977149B2 (ja) | 2021-12-08 |
| CN111867927A (zh) | 2020-10-30 |
| DE112018007383T5 (de) | 2020-12-10 |
| CN111867927B (zh) | 2022-01-04 |
| JPWO2019186947A1 (ja) | 2021-02-25 |
| US11492075B2 (en) | 2022-11-08 |
| US20200398933A1 (en) | 2020-12-24 |
| DE112018007383B4 (de) | 2025-03-06 |
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