JP5576855B2 - Electric vehicle - Google Patents

Description

  The present invention relates to an electric vehicle, and more particularly, to an electric vehicle having a size that allows traveling on a sidewalk.

Conventionally, many vehicles for supporting the lives of elderly people, disabled persons, injured persons, etc. whose athletic ability has declined have been proposed, and an electric vehicle as an example is disclosed in Patent Document 1.
An electric vehicle such as Patent Document 1 is generally called a “senior car” and is compactly configured so as to be able to travel in a small turn even in a hospital or rehabilitation facility. In addition, traveling on a public sidewalk is indispensable to support the lives of elderly people and the like. For example, in Japan, according to the Road Traffic Law and Cabinet Office Ordinance, the size of a vehicle permitted to run on a sidewalk is defined as a total length of 1200 mm or less, a total height of 1090 mm or less, and a total width of 700 mm or less. Also from this point, the electric vehicle of patent document 1 is comprised compactly.
In the electric vehicle of Patent Document 1, the forward and backward movement of the vehicle is instructed by a joystick, and the traveling direction of the vehicle is changed by operating the joystick. The operability is good for the user. On the other hand, if relying too much on the electric vehicle of Patent Document 1, the exercise ability will be further reduced.
Thus, for example, Patent Document 2 discloses an electric vehicle that aims to maintain and recover the occupant's athletic ability by requiring the occupant to exercise (driving force). The electric vehicle of Patent Document 2 travels by assisting a driving force generated by depressing a pedal with an electric motor.
JP 2007-83921 A JP 2008-37340 A

  However, the movement required of the passenger in the electric vehicle of Patent Document 2 is only the depression of the pedal. The exercise of depressing the pedal is effective for maintaining / recovering the muscular strength to bend the knee even though it is effective for maintaining / recovering the muscular strength to stretch the knee. Further, since the stepping motion can be performed without bending the ankle, it was difficult to maintain and restore the flexibility of the ankle. As described above, in the electric vehicle of Patent Document 2, it is difficult to sufficiently maintain and recover the occupant's athletic ability. Further, in this electric vehicle, it is necessary to perform the same single operation of stepping on the pedal during forward travel and reverse travel. Therefore, when the vehicle is moving backward, the vehicle moves backward in spite of performing the same operation as when moving forward, so that the uncomfortable feeling during traveling increases.

  Therefore, the main object of the present invention is to provide an electric motor that can sufficiently maintain and recover the occupant's athletic ability and can suppress a sense of incongruity during driving, even in a compact configuration that allows driving on a sidewalk. Is to provide a vehicle.

According to one aspect of the present invention, a frame extending in the front-rear direction, a pair of front wheels arranged in the left-right direction at the front portion of the frame, and a pair of rear wheels arranged in the left-right direction at the rear portion of the frame A frame, a seat provided on the frame between the pair of front wheels and the pair of rear wheels, and a frame extending in the left-right direction between the pair of front wheels and the pair of rear wheels on the front side of the front end of the seat. A rotation shaft including a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction substantially orthogonal to the rotation shaft and opposite to each other, and a pair of pedals attached to one and the other of the pair of cranks a mechanism, an electric motor for driving at least one wheel of the pair of front wheels and a pair of rear wheels, and a detector which detects the rotation direction of the crank, the previous detected by the detecting unit crank Advancing at least one wheel in accordance with the rotational direction and a control unit for controlling the electric motor to rotate in the same direction as the front-reverse rotation direction of the crank, an electric vehicle is provided.

  In this invention, by adopting a rotation mechanism, when the pedal is rotated, the rider uses his / her legs to move the pedal himself / herself from the lowest position located at the lowest position to the last position located at the rearmost position. It will be a movement to draw to the torso side. Therefore, it is possible to maintain and restore not only the muscle strength for stretching the knee but also the muscle strength for bending the knee. Further, in order to rotate the pedal and thus the crank, ankle flexibility is required rather than a simple stepping motion. Therefore, it is possible to maintain and restore athletic ability from this point. Thus, even if it is a compact structure with which the driving | running | working on a sidewalk is permitted, a passenger | crew's athletic ability can fully be maintained and recovered. In addition, the control unit controls the electric motor so that at least one wheel is driven to rotate in the same direction as the direction of the pedal and the crank by the passenger. In this way, the passenger can instruct the traveling direction while exercising the leg by rotating the pedal. Therefore, the vehicle can be driven according to the intention of the passenger, and the uncomfortable feeling during driving can be suppressed.

  Preferably, the electric motor further includes a torque detection unit that detects torque applied to the rotation shaft, and the control unit detects the forward rotation direction torque applied to the rotation shaft by the torque detection unit so as to advance the vehicle. To control. In this case, if the forward torque applied to the rotating shaft is generated by rotating the pedal, the movement of the rider's legs can be further promoted, and the exercise ability can be maintained and recovered more effectively. it can.

Also , a frame extending in the front-rear direction, a pair of front wheels arranged in the left-right direction at the front part of the frame, a pair of rear wheels arranged in the left-right direction at the rear part of the frame, a pair of front wheels and a pair Rotation shaft provided on the frame so as to extend in the left-right direction on the front side of the front end of the seat between the pair of front wheels and the pair of rear wheels between the rear wheel and the pair of rear wheels. A rotation mechanism including a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction orthogonal to each other and opposite to each other; and a pair of pedals attached to one and the other of the pair of cranks; a pair of front wheels and a pair An electric motor that drives at least one of the rear wheels, a detection unit that detects the rotation direction of the crank, and a direction that is less than the rotation direction of the crank detected by the detection unit. And a control unit which also controls the electric motor so as to rotate the one wheel, and a first instruction unit that gives an instruction for advancing the vehicle, the control unit may also not be detected before rotation of crank, first When an instruction to advance the vehicle is input by the instruction unit , an electric vehicle is provided that controls the electric motor to advance the vehicle. In the present invention, the vehicle can be driven according to the intention of the passenger, and a sense of discomfort during driving can be suppressed.

Furthermore , a frame extending in the front-rear direction, a pair of front wheels arranged in the left-right direction at the front part of the frame, a pair of rear wheels arranged in the left-right direction at the rear part of the frame, a pair of front wheels and a pair Rotation shaft provided on the frame so as to extend in the left-right direction on the front side of the front end of the seat between the pair of front wheels and the pair of rear wheels between the rear wheel and the pair of rear wheels. A rotation mechanism including a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction orthogonal to each other and opposite to each other; and a pair of pedals attached to one and the other of the pair of cranks; a pair of front wheels and a pair An electric motor that drives at least one of the rear wheels, a detection unit that detects the rotation direction of the crank, and a small amount in the same direction as the rotation direction of the crank detected by the detection unit. Both include a control unit that controls the electric motor so as to rotate the one wheel, and a load portion providing a load to rotation of the crank, an electric vehicle is provided. In the present invention, by applying an appropriate load by the load portion, the exercise of the legs of the occupant can be further promoted, and the exercise ability can be maintained and recovered more effectively.
Also, a frame extending in the front-rear direction, a pair of front wheels arranged in the left-right direction at the front part of the frame, a pair of rear wheels arranged in the left-right direction at the rear part of the frame, and extending in the left-right direction A pair of cranks provided on both sides of the rotating shaft so as to extend in a direction substantially orthogonal to the rotating shaft and in opposite directions to each other, and a pair of cranks attached to one and the other of the pair of cranks A rotation mechanism including a pedal; an electric motor that drives at least one of the pair of front wheels and the pair of rear wheels; a detection unit that detects a rotation direction of the crank; and a second instruction unit that gives an instruction to move the vehicle backward And a control unit that controls the electric motor so as to rotationally drive at least one wheel in the same direction as the crank rotation direction detected by the detection unit, When rolling after the crank by the instruction to reverse the vehicle is input and detection unit is detected by two instruction section, controls the electric motor so as to reverse the vehicle, an electric vehicle is provided. In the present invention, the passenger shows the intention of moving the vehicle backward by the instruction from the second indicator and the reverse rotation of the pedal, and hence the crank, and the vehicle moves backward accordingly. Can be further suppressed.
Preferably, the vehicle further includes a third instruction unit for setting the operation mode of the vehicle to an auto mode or an assist mode, and the control unit is configured to set the operation mode of the vehicle to the auto mode by the third instruction unit. When an instruction to reverse the vehicle is input by, and the reverse rotation of the crank is detected by the detection unit, the electric motor is controlled to reverse the vehicle. In this case, the occupant clearly shows his intention to reverse the vehicle by the instruction from the second instruction unit and the third instruction unit and the reverse rotation of the pedal and the crank, and the vehicle reverses accordingly. The uncomfortable feeling during running can be further suppressed.

Further, the frame extends in the left-right direction, the frame extending in the front-rear direction, the pair of front wheels arranged in the left-right direction at the front part of the frame, and the pair of rear wheels arranged in the left-right direction at the rear part of the frame A pair of cranks provided on both sides of the rotating shaft so as to extend in a direction substantially orthogonal to the rotating shaft and in opposite directions to each other, and a pair of cranks attached to one and the other of the pair of cranks A rotation mechanism including a pedal, an electric motor that drives at least one of a pair of front wheels and a pair of rear wheels, a detection unit that detects a rotation direction of a crank, and whether the vehicle is operating in an auto mode or an assist mode control a third indication unit for setting the electric motor to rotate drive at least one wheel in the same direction as the rotation direction of the detected by the detecting unit crank And a control unit that, the control unit, when the operation mode of the vehicle is rolling after the crank has been detected by the set to the automatic mode and the detection unit by the third instruction unit, the electric motor so as to reverse the vehicle An electric vehicle is provided that controls the motor . In this invention, the passenger shows the intention of moving the vehicle backward by the instruction from the third indicating unit and the reverse rotation of the pedal and hence the crank, and the vehicle moves backward accordingly. Can be further suppressed.

  In the claims, the “assist mode” refers to a mode in which the electric motor drives at least one wheel to assist vehicle travel by human power. The “auto mode” refers to a mode in which the vehicle travels only by driving at least one wheel by an electric motor regardless of human power.

Also, a frame extending in the front-rear direction, a pair of front wheels arranged in the left-right direction at the front part of the frame, a pair of rear wheels arranged in the left-right direction at the rear part of the frame, and extending in the left-right direction A pair of cranks provided on both sides of the rotating shaft so as to extend in a direction substantially orthogonal to the rotating shaft and in opposite directions to each other, and a pair of cranks attached to one and the other of the pair of cranks A rotation mechanism including a pedal; an electric motor that drives at least one of the pair of front wheels and the pair of rear wheels; a detection unit that detects a rotation direction of the crank; and a rotation direction of the crank that is detected by the detection unit and a control unit for controlling the electric motor to rotate drive at least one wheel in a direction, and a load portion providing a load to rotation of the crank, the load unit, the previous pair And a transmission mechanism for transmitting the rotation of the crank to at least one wheel of the pair of rear wheels, an electric vehicle is provided. In the present invention, by applying an appropriate load by the load portion, the exercise of the legs of the occupant can be further promoted, and the exercise ability can be maintained and recovered more effectively. Further , the load portion can be easily configured, and the passenger can contribute to the traveling of the vehicle as appropriate while exercising.

  Preferably, the transmission mechanism includes a one-way clutch that transmits the forward rotation of the crank to the wheel side to which the rotation of the crank is to be transmitted but does not transmit the reverse rotation of the crank. In this case, the load applied to the crank at the time of the reverse rotation of the pedal and the crank can be kept constant regardless of the traveling state of the vehicle, and the occupant can easily and reliably reverse the crank at any time.

  The above object and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

It is a left view which shows the electric vehicle of one Embodiment of this invention. It is a right view which shows the electric vehicle of one Embodiment of this invention. It is a top view which shows the positional relationship of a flame | frame, a pair of front wheel, and a pair of rear wheel. It is a rear view which shows the arrangement | positioning aspect of the pipe in the rear-end part of a flame | frame. It is a front view which shows a front wheel holding unit. 1 is a block diagram showing an electrical configuration of an electric vehicle according to an embodiment of the present invention. It is a flowchart which shows an example of operation | movement of the electric vehicle of one Embodiment of this invention. It is a flowchart which shows an example of the command speed setting process at the time of auto mode. It is a flowchart which shows the other example of the command speed setting process at the time of an auto mode. It is a flowchart which shows an example of the command speed setting process at the time of assist mode. It is a flowchart which shows the other example of the command speed setting process at the time of assist mode. It is a flowchart which shows the other example of operation | movement of the electric vehicle of one Embodiment of this invention. It is a flowchart which shows an example of a command speed setting process. It is a side view solution figure which shows the state of a passenger | crew's leg when a pedal is the highest. It is a side view solution figure which shows the state of a passenger | crew's leg when a pedal is in the foremost position. It is a side view solution figure which shows the state of a passenger's leg when a pedal is in the lowest position. It is a side view solution figure which shows the state of a passenger | crew's leg when a pedal exists in the last position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electric vehicle 12 Frame 14a, 14b Front wheel 16a, 16b Rear wheel 40a, 40b Electric motor 43a, 43b Encoder 46 Input part 46a Power switch 46b Forward switch 46c Reverse switch 47 Mode change switch 48b Axle 52, 74 Sprocket unit 52a, 74a Direction clutch 64 Rotating mechanism 66 Bearing member 68, 80 Rotating shaft 70a, 70b Crank 72a, 72b Pedal 76, 84 Chain 78, 82 Sprocket 85a, 85b Rotation detection sensor 85c Torque sensor 90 Secondary battery 104 Control unit T Transmission mechanism

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a left side view showing an electric vehicle 10 according to an embodiment of the present invention. FIG. 2 is a right side view showing the electric vehicle 10. FIG. 3 is a plan view showing the positional relationship between the frame 12, the pair of front wheels 14a and 14b, and the pair of rear wheels 16a and 16b.
Left and right, front and rear, and top and bottom in the embodiment of the present invention mean right and left, front and back, and top and bottom based on a state in which a passenger is seated on the seat 58 of the electric vehicle 10 toward the handle 45.

  As shown in FIGS. 1 to 3, the electric vehicle 10 includes a frame 12 that extends in the front-rear direction, a pair of front wheels 14 a and 14 b that are arranged side by side in the left-right direction at the front end of the frame 12, and left and right at the rear end of the frame 12. It includes a pair of rear wheels 16a and 16b arranged side by side in the direction.

  The frame 12 includes a head pipe 18, a main pipe 20 extending rearward from the lower end portion of the head pipe 18, and a seat pipe 22 connected to the rear end portion of the main pipe 20. As shown in FIG. 3, the frame 12 includes a pair of holding pipes 24 a and 24 b for holding the rear wheels 16 a and 16 b in a rotatable manner, and a connecting pipe 26 a for connecting the holding pipes 24 a and 24 b to the main pipe 20. , 26b and a bifurcated pipe 28.

  FIG. 4 is a rear view showing the pipe arrangement at the rear end of the frame 12. Referring also to FIG. 4, the holding pipes 24 a and 24 b are arranged in the left-right direction behind the main pipe 20 and extend linearly in the left-right direction. The connection pipe 26a connects the main pipe 20 and the holding pipe 24a. The connection pipe 26b connects the main pipe 20 and the holding pipe 24b. Further, the connecting pipes 26 a and 26 b are connected to each other by the reinforcing pipe 30. As shown in FIG. 3, the bifurcated pipe 28 is substantially Y-shaped in plan view, and connects the main pipe 20 and the holding pipes 24a and 24b.

  As shown in FIG. 2, a steering shaft 32 (shown by a broken line) for changing the vehicle body direction is rotatably inserted into the head pipe 18 of such a frame 12. A front wheel holding unit 34 is connected to the lower end portion of the steering shaft 32 to hold the pair of front wheels 14a and 14b in a swingable manner.

  FIG. 5 is a front view showing the front wheel holding unit 34. With reference to FIGS. 2, 3, and 5, the front wheel holding unit 34 includes a connecting member 36 connected to the steering shaft 32, a housing 38 attached to the connecting member 36, and a pair of electric motors attached to the housing 38. Motors 40a and 40b (see FIGS. 3 and 5) are included.

  As shown in FIG. 2, the connecting member 36 includes an upper plate 36a orthogonal to the steering shaft 32, a front plate 36b extending from the front end of the upper plate 36a and extending from the rear end of the upper plate 36a. 36c including a substantially C-shape in side view.

  The casing 38 is formed in a substantially rectangular parallelepiped shape, and is disposed between the front plate 36 b and the rear plate 36 c of the connecting member 36. A swing shaft 42 is fitted through the connecting member 36 and the housing 38. The swing shaft 42 is fixed to the connecting member 36, and supports the casing 38 so as to be swingable in the direction of arrow A (the circumferential direction of the swing shaft 42). The electric motor 40 a is attached to the housing 38 so as to protrude from the left side surface of the housing 38, and the electric motor 40 b is attached to the housing 38 so as to protrude from the right side surface of the housing 38.

  As shown in FIG. 5, the front wheels 14 a and 14 b are arranged side by side in the left-right direction so as to sandwich the front wheel holding unit 34. Rotating shafts 41a and 41b of electric motors 40a and 40b disposed between the front wheels 14a and 14b are connected to the front wheels 14a and 14b via a speed reducer (not shown). As described above, the front wheels 14 a and 14 b held by the front wheel holding unit 34 swing up and down around the swing shaft 42 as the casing 38 swings in the direction of arrow A. The rotary shafts 41a and 41b are provided with encoders 43a and 43b for detecting the number of rotations. Further, the casing 38 is provided with a brake (not shown) for restricting the rotation of the front wheels 14a and 14b.

  Returning to FIG. 1 and FIG. 2, a stem 44 is attached to the upper end portion of the steering shaft 32 by using a lifting bolt or the like (not shown), and a handle 45 is attached to the stem 44.

  As shown in FIG. 3, the handle 45 has a substantially U shape in plan view. By turning the handle 45 to the left and right, the front wheel holding unit 34 and thus the front wheels 14a and 14b turn to the left and right. As a result, the vehicle body direction can be changed.

  Such a handle 45 is provided with a brake lever (not shown) for operating a brake attached to the front wheel holding unit 34. An input unit 46 is attached in the vicinity of the right grip of the handle 45, and a third instruction unit for setting the operation mode of the electric vehicle 10 to the auto mode or the assist mode in the vicinity of the left grip of the handle 45. A mode changeover switch 47 is attached. Referring to FIG. 6, input unit 46 includes a power switch 46a, a forward switch 46b serving as a first instruction unit, a reverse switch 46c serving as a second instruction unit, a high speed switch 46d, and a low speed switch 46e. The power is turned on / off by the power switch 46a. An instruction for moving the electric vehicle 10 forward is input by the forward switch 46b. An instruction to reverse the electric vehicle 10 is input by the reverse switch 46c. The maximum speed of the electric vehicle 10 is set higher by the high speed switch 46d. The maximum speed of the electric vehicle 10 is set lower by the low speed switch 46e. In this embodiment, the “assist mode” refers to a mode in which the electric motors 40a and 40b assist the vehicle travel by human power by driving the front wheels 14a and 14b. The “auto mode” refers to a mode in which the vehicle travels only by driving the front wheels 14a and 14b by the electric motors 40a and 40b regardless of human power.

  As shown in FIGS. 3 and 4, an axle 48a connected to the rear wheel 16a is rotatably inserted in the holding pipe 24a, and an axle 48b connected to the rear wheel 16b is rotatable in the holding pipe 24b. Is inserted. That is, the rear wheels 16a and 16b are rotatably held by the holding pipes 24a and 24b.

  An electromagnetic brake unit 50a through which the axle 48a is inserted is provided at the left end of the holding pipe 24a. An electromagnetic brake unit 50b through which the axle 48b is inserted is provided at the right end of the holding pipe 24b. By driving the electromagnetic brake units 50a and 50b, the rotation of the axles 48a and 48b and the rotation of the rear wheels 16a and 16b are restricted.

  A sprocket unit 52 is provided at the left end of the axle 48b. The sprocket unit 52 includes a one-way clutch 52a through which the axle 48b is fitted, and a substantially hollow disk-shaped sprocket 52b provided on the outer peripheral surface of the one-way clutch 52a.

  The one-way clutch 52a transmits the rotational force to the axle 48b when the sprocket 52b is rotated in the arrow B1 direction (clockwise direction as viewed from the right side: see FIG. 2), and the sprocket 52b is counterclockwise as viewed in the arrow B2 direction (from the right side). When rotating in the turning direction (see FIG. 2), the rotational force is not transmitted to the axle 48b. The one-way clutch 52a transmits the rotational force to the sprocket 52b when the axle 48b and the rear wheel 16b are rotated in the arrow B2 direction, and the rotational force is transmitted to the sprocket 52b when the rear wheel 16b is rotated in the arrow B1 direction. Configured not to communicate. Since such a one-way clutch 52a is generally widely used, a detailed description of the one-way clutch 52a is omitted.

  As shown in FIGS. 1 and 2, a seat unit 54 is attached to the seat pipe 22. The seat unit 54 includes a seat post 56 to be inserted into the seat pipe 22, a seat 58 provided at the upper end of the seat post 56, a backrest 60 provided above the rear end of the seat 58, and left and right so as to sandwich the backrest 60. It includes a pair of handrails 62a and 62b provided side by side in the direction.

  As shown in FIGS. 1 to 3, a rotation mechanism 64 is provided on the main pipe 20. The rotation mechanism 64 is provided on the main pipe 20 at a substantially triangular bearing member 66 in a side view, a rotation shaft 68 that fits the bearing member 66 in the left-right direction, and a left end portion and a right end portion of the rotation shaft 68. And a pair of pedals 72a and 72b provided on one and the other of the cranks 70a and 70b.

  The rotating shaft 68 is supported by the bearing member 66 so as to be rotatable in the directions of arrows B1 and B2 (see FIG. 2). The crank 70 a is provided at the left end portion of the rotation shaft 68 so as to be substantially orthogonal to the rotation shaft 68. The crank 70b is provided at the right end portion of the rotation shaft 68 so as to extend substantially perpendicular to the rotation shaft 68 and in a direction opposite to the crank 70a. The pedal 72a is rotatably provided at the tip of the crank 70a. The pedal 72b is rotatably provided at the tip of the crank 70b.

  2 and 3, the rotating shaft 68 is provided with a sprocket unit 74 between the bearing member 66 and the crank 70b. The sprocket unit 74 includes a one-way clutch 74a through which the rotary shaft 68 is fitted, and a sprocket 74b provided on the right side surface of the one-way clutch 74a. The sprocket 74b is provided on the right side surface of the one-way clutch 74a without being connected to the rotating shaft 68 that passes through the sprocket 74b.

  The one-way clutch 74a transmits its rotational force to the rotating shaft 68 when the sprocket 74b is rotated in the direction of arrow B2 (see FIG. 2), and its rotational force when the sprocket 74b is rotated in the direction of arrow B1 (see FIG. 2). Is not transmitted to the rotating shaft 68. The one-way clutch 74a transmits the rotational force to the sprocket 74b when the rotating shaft 68 is rotated in the arrow B1 direction, and does not transmit the rotational force to the sprocket 74b when the rotating shaft 68 is rotated in the arrow B2 direction. Configured. That is, the one-way clutch 74a is configured to have a function opposite to that of the one-way clutch 52a. Since such a one-way clutch 74a is also widely used in general, a detailed description of the one-way clutch 74a is omitted.

  The sprocket 74 b is connected to a sprocket 78 provided obliquely below the sprocket 74 b through an endless chain 76.

  As shown in FIG. 3, the sprocket 78 is attached to a rotating shaft 80 extending rightward from the main pipe 20. In addition, on the rotary shaft 80, a sprocket 82 larger than the sprocket 78 (having a larger number of teeth) is attached between the main pipe 20 and the sprocket 78.

  As shown in FIG. 2, the sprocket 82 is connected to the sprocket 52 b of the sprocket unit 52 via an endless chain 84. The tension of the chain 84 is adjusted by a chain tensioner 86 provided on the reinforcing pipe 30 (see FIG. 3).

  The transmission mechanism T is configured to include the axle 48b, the sprocket units 52 and 74, the sprockets 78 and 82, the rotating shaft 80, and the chains 76 and 84 described above.

  The rear wheel 16b is driven by the passenger via the rotating mechanism 64 and the transmission mechanism T. Specifically, when the passenger rotates the cranks 70a and 70b in the direction of arrow B1 (see FIG. 2) via the pedals 72a and 72b, the rotating shaft 68 and the sprocket 74b rotate in the direction of arrow B1. The force that causes the sprocket 74b to rotate in the direction of arrow B1 is transmitted to the sprocket 78 via the chain 76, causing the sprockets 78 and 82 and the rotary shaft 80 to rotate in the direction of arrow B1. The force that causes the sprocket 82 to rotate in the direction of arrow B1 is transmitted to the sprocket 52b via the chain 84, causing the sprocket unit 52 to rotate in the direction of arrow B1. As a result, the axle 48b and the rear wheel 16b rotate in the direction of the arrow B1, and the electric vehicle 10 moves forward.

  Even if the rotating shaft 68 is rotated in the direction of the arrow B2 by rotating the cranks 70a and 70b in the direction of the arrow B2 (see FIG. 2) via the pedals 72a and 72b, the sprocket 74b does not rotate. 76 and 84 do not move. This is because the one-way clutch 74 a is used for the sprocket unit 74. Thus, when the rotating shaft 68 is rotated in the direction of the arrow B2, troubles such as detachment of the chains 76 and 84 can be avoided by not moving the chains 76 and 84.

  Further, when traveling on a downhill or the like and the rear wheel 16b and the axle 48b rotate in the arrow B1 direction without rotating the rotating shaft 68 in the arrow B1 direction (see FIG. 2), the sprocket 52b rotates. The chains 76 and 84 do not move. This is because the one-way clutch 52 a is used for the sprocket unit 52. This also avoids troubles such as the chains 76 and 84 coming off.

  A cover 85 is provided on the left side of the rotation shaft 68. The cover 85 is provided with rotation detection sensors 85a and 85b for detecting the rotation of the crank 70a. Referring to FIG. 3, a torque sensor 85 c that is a torque detection unit that detects torque applied to the rotation shaft 68 is provided around the rotation shaft 68.

  As shown in FIGS. 1 to 3, the head pipe 18 is connected to a protrusion 66 a provided on the bearing member 66 through the sub frames 86 a and 86 b.

  In the main frame 20, a secondary battery case 88 having an upper surface opening is provided in front of the rotation mechanism 64 and below the pair of subframes 86 a and 86 b. As shown in FIGS. 1 and 2, a secondary battery 90 is arranged in the secondary battery case 88 so as to extend upward from between the subframes 86 a and 86 b. The secondary battery 90 is a nickel (Ni) -cadmium (Cd) battery or the like, and the electric power stored in the secondary battery 90 is used for driving the electric motors 40a and 40b.

  A front car 92 is provided above the front wheel holding unit 34. The front car 92 is attached to the attachment member 94 and the attachment member 96.

  As shown in FIGS. 2 and 4, a rear car 98 is provided above the holding pipes 24a and 24b. The rear car 98 is attached to a substantially C-shaped attachment plate 100 (see FIG. 2) in a side view fixed to the seat pipe 22 and the reinforcing pipe 30 (see FIG. 4). The rear car 98 is also supported by stays 102a and 102b (see FIG. 4) provided on the holding pipes 24a and 24b.

  As shown in FIG. 2, a controller 104 for controlling the electric motors 40 a and 40 b and the electromagnetic brake units 50 a and 50 b is attached to the front surface of the rear car 98 via a mounting plate 100. A switch 105 for switching on / off of the electromagnetic brakes 50a and 50b is attached to the lower surface of the rear car 98.

  In Japan, the size of vehicles allowed to run on the sidewalk is regulated by the Road Traffic Act and Cabinet Office Ordinance. The size of such an electric vehicle 10 is set to a size that allows travel on a sidewalk in Japan (total length of 1200 mm or less, total height of 1090 mm or less, total width of 700 mm or less). Specifically, in this embodiment, the total length of the electric vehicle 10 is set to 1185 mm, the total height of the electric vehicle 10 is set to 900 mm, and the total width of the electric vehicle 10 is set to 650 mm.

  In the electric vehicle 10 configured in this compact manner, as shown in FIGS. 1 to 3, the position of the rotating shaft 68 in the front-rear direction is higher than the front end of the seat 58 and higher than the center of the front wheels 14 a and 14 b. (Refer to FIG. 1 and FIG. 2), the distance S1 between the center of the rotating shaft 68 and the center of the front wheel 14a (14b) is the front and rear between the center of the rotating shaft 68 and the center of the rear wheel 16a (16b). It is set to be smaller than the interval S2 in the direction (see FIGS. 1 and 3).

Next, the main electrical configuration of the electric vehicle 10 will be described with reference to FIG.
The control unit 104 of the electric vehicle 10 includes a control circuit 106. The control circuit 106 has a CPU and a memory. The CPU performs necessary calculations to control the operation of the electric vehicle 10. The memory as the storage means stores a program, data, calculation data, and the like for controlling the operation of the electric vehicle 10. The memory stores a program for executing the operations shown in FIGS.

  The control circuit 106 is connected to the power supply circuit 108, the motor drive circuit 110, the input unit interface circuit 112, the sensor interface circuit 114, and the protection circuit 116. A secondary battery 90 is connected to the control unit 104. Electric motors 40 a and 40 b are connected to the motor drive circuit 110. An input unit 46 and a mode changeover switch 47 are connected to the input unit interface circuit 112. The sensor interface circuit 114 is connected to encoders 43a and 43b, rotation detection sensors 85a and 85b, and a torque sensor 85c.

An example of the operation of the electric vehicle 10 will be described with reference to FIGS.
Referring to FIG. 7, when the power switch 46a is pressed, the control circuit 106, the operation mode is to determine whether the automatic mode or the assist mode (step S1). The operation mode can be set by the mode changeover switch 47, and the default may be the assist mode. If the operation mode is the auto mode, the control circuit 106 sets the command speed in the auto mode by the process shown in FIG. 8 (step S3). On the other hand, if the operation mode is the assist mode, the control circuit 106 sets the command speed in the assist mode by the process shown in FIG. 10 (step S5). Then, the control circuit 106 outputs a control signal to the motor drive circuit 110 to control the electric motors 40a and 40b so that the traveling speed of the electric vehicle 10 becomes the set command speed. The speed is controlled (step S7), and the process ends.

Next, an example of the command speed setting operation in the auto mode will be described with reference to FIG.
First, the control circuit 106 determines whether or not the forward switch 46b is pressed (step S11). If the forward switch 46b is pressed, the control circuit 106 sets a predetermined forward speed (for example, 6 km / h) as the command speed (step S13), and the process ends.

  On the other hand, if the forward switch 46b has not been pressed, the control circuit 106 determines whether pedaling is in the reverse direction, that is, whether the crank 70a is rotating backward (step S15). This is determined by the control circuit 106 based on the input order of detection signals from the rotation detection sensors 85a and 85b that detect the rotation of the crank 70a to the control circuit 106. In this embodiment, the detection unit that detects the rotation direction of the crank includes rotation detection sensors 85 a and 85 b and a control circuit 106. If pedaling is in the reverse direction, the control circuit 106 sets a predetermined reverse speed (for example, 2 km / h) as the command speed (step S17), and the process ends. When it is not pedaling in the reverse direction in step S15, the control circuit 106 sets the command speed to zero (step S19), and the process ends.

  In this example of operation, the control unit 104 moves the electric vehicle 10 backward by turning the pedals 72a and 72b and then the cranks 70a and 70b after the passenger sets the operation mode to the automatic mode by the mode changeover switch 47. The electric motors 40a and 40b are controlled. Thus, the passenger can clearly indicate the traveling direction of the electric vehicle 10 while performing the leg motion by setting the auto mode and turning the pedals 72a and 72b backward. Therefore, the electric vehicle 10 can be moved backward according to the intention of the passenger, and the uncomfortable feeling during traveling can be suppressed. Moreover, if the forward switch 46b is turned on, the electric vehicle 10 can be advanced at a predetermined speed without a sense of incongruity.

Next, another example of the command speed setting operation in the auto mode will be described with reference to FIG.
In this operation example, step S21 is inserted between steps S11 and S15 of the operation example shown in FIG. 8, and the rest is the same as in FIG.

  If the forward switch 46b is not pressed in step S11 of the operation example shown in FIG. 9, the process proceeds to step S21, and the control circuit 106 determines whether or not the reverse switch 46c is pressed. If the reverse switch 46c is pressed, the process proceeds to step S15. If the reverse switch 46c is not pressed, the process proceeds to step S19.

  In this operation example, after the operation mode is set to the auto mode by the mode changeover switch 47, an instruction to reverse the electric vehicle 10 is input by the reverse switch 46c, and the cranks 70a, 85b and the control circuit 106 are operated by the rotation detection sensors 85a, 85b. When the reverse rotation of 70b is detected, the electric motors 40a and 40b are controlled so as to move the electric vehicle 10 backward. In this case, the occupant clearly shows his intention to reverse the electric vehicle 10 by setting with the mode changeover switch 47, turning on the reverse switch 46c and reverse rotation of the cranks 70a, 70b. Since the vehicle travels backward, it is possible to further suppress discomfort during traveling. Moreover, if the forward switch 46b is turned on, the electric vehicle 10 can be advanced at a predetermined speed without a sense of incongruity.

Further, an example of the command speed setting operation in the assist mode will be described with reference to FIG.
First, the control circuit 106 determines whether or not the traveling speed of the electric vehicle 10 exceeds a specified speed (for example, 4.5 km / h) (step S31). This is determined based on detection signals from the encoders 43a and 43b. If it exceeds the specified speed, the control circuit 106 sets the command speed to the specified speed (step S33), and the process ends.

  If the specified speed is not exceeded in step S31, the control circuit 106 determines whether or not the input torque is greater than zero, that is, whether or not forward rotation direction torque is applied to the rotating shaft 68 (step S35). This is determined based on the detection value from the torque sensor 85c. If the input torque is greater than zero, the control circuit 106 sets the command speed based on the input torque (step S37) and ends.

  If the input torque is less than or equal to zero in step S35, the control circuit 106 determines whether pedaling in the forward direction, that is, whether the crank 70a is rotating forward (step S39). This is performed based on detection signals from rotation detection sensors 85a and 85b that detect the rotation of the crank 70a. If pedaling is in the forward direction, the control circuit 106 sets the command speed based on the pedaling speed (step S41), and the process ends. In this embodiment, the pedaling speed is detected by the control circuit 106 based on the input interval of the detection signal from the rotation detection sensors 85a and 85b to the control circuit 106.

  On the other hand, when pedaling in the forward direction is not performed in step S39, the control circuit 106 sets the command speed to zero (step S43), and the process ends.

  In this operation example, if the forward rotation direction torque is applied to the rotating shaft 68 by the forward rotation of the pedals 72a and 72b, the electric vehicle 10 can be advanced at a speed based on the input torque. As a result, the movement of the passenger's legs can be further promoted without a sense of incongruity, and the exercise ability can be maintained and restored more effectively. Further, even if the input torque is zero, if the pedaling is performed in the forward direction, the vehicle can move forward at a speed based on the pedaling speed.

Further, another example of the command speed setting operation in the assist mode will be described with reference to FIG.
Steps S31 to S41 are the same as the operations shown in FIG.

  When pedaling in the forward direction is not performed in step S39, the control circuit 106 determines whether or not the reverse switch 46c is pressed (step S43). If the reverse switch 46c is pressed, the control circuit 106 determines whether pedaling is in the reverse direction, that is, whether the crank 70a is rotating backward (step S45). If pedaling is in the reverse direction, the control circuit 106 sets a predetermined reverse speed (for example, 2 km / h) as the command speed (step S47), and the process ends.

  On the other hand, when the reverse switch 46c is not pressed in step S43 or when pedaling is not performed in the reverse direction in step S45, the control circuit 106 sets the command speed to zero (step S49), and the process ends.

  In this operation example, even in the assist mode, an instruction to reverse the electric vehicle 10 is input by the reverse switch 46c, and the reverse rotation of the cranks 70a and 70b is detected by the rotation detection sensors 85a and 85b and the control circuit 106. Then, the electric motors 40a and 40b are controlled so that the electric vehicle 10 moves backward. In this way, the passenger can instruct the traveling direction of the electric vehicle 10 while moving the legs by rotating the pedals 72a, 72b and then the cranks 70a, 70b backward. Further, since the passenger clearly shows his intention to reverse the electric vehicle 10 by turning on the reverse switch 46c and the reverse rotation of the cranks 70a and 70b, and the electric vehicle 10 moves backward accordingly, the passenger feels strange. Can be further suppressed.

  If forward rotation direction torque is applied to the rotating shaft 68 by forward rotation of the pedals 72a and 72b, the electric vehicle 10 can be advanced at a speed based on the input torque. As a result, the movement of the passenger's legs can be further promoted without a sense of incongruity, and the exercise ability can be maintained and restored more effectively. Even if the input torque is zero, if the pedaling is performed in the forward direction, the vehicle can move forward at a speed based on the pedaling speed.

An example of operation when the operation mode is not determined to be the auto mode or the assist mode will be described with reference to FIG.
When the power switch 46a is pressed, first, the control circuit 106 sets a command speed by the process shown in FIG. 13 (step S51). Then, the control circuit 106 outputs a control signal to the motor drive circuit 110 to control the electric motors 40a and 40b so that the traveling speed of the electric vehicle 10 becomes the set command speed. The speed is controlled (step S53), and the process ends.

Next, an example of the command speed setting operation will be described with reference to FIG.
First, the control circuit 106 determines whether or not the forward switch 46b is pressed (step S61). If the forward switch 46b is pressed, the control circuit 106 sets a predetermined forward speed (for example, 6 km / h) as the command speed (step S63), and the process ends.

  On the other hand, if the forward switch 46b has not been pressed, the control circuit 106 determines whether or not the reverse switch 46c has been pressed (step S65). If the reverse switch 46c is pressed, the control circuit 106 determines whether pedaling is in the reverse direction, that is, whether the crank 70a is rotating backward (step S67). If pedaling is in the reverse direction, the control circuit 106 sets a predetermined reverse speed (for example, 2 km) as the command speed (step S69), and the process ends.

  When the reverse switch 46c is not pressed in step S65 or when pedaling is not performed in the reverse direction in step S67, the control circuit 106 causes the traveling speed of the electric vehicle 10 to exceed a specified speed (for example, 4.5 km / h). It is determined whether or not (step S71). If it exceeds the specified speed, the control circuit 106 sets the command speed to the specified speed (step S73), and the process ends.

  If the specified speed is not exceeded in step S71, the control circuit 106 determines whether or not the input torque is zero or more (step S75). If the input torque is greater than zero, the control circuit 106 sets the command speed based on the input torque (step S77) and ends.

  If the input torque is less than or equal to zero in step S75, the control circuit 106 determines whether pedaling in the forward direction, that is, whether the crank 70a is rotating forward (step S79). If pedaling is in the forward direction, the control circuit 106 sets the command speed based on the pedaling speed (step S81), and the process ends.

  On the other hand, when pedaling in the forward direction is not performed in step S79, the control circuit 106 sets the command speed to zero (step S83), and the process ends.

  In this operation example, when an instruction to reverse the electric vehicle 10 is input by the reverse switch 46c and the reverse rotation of the cranks 70a and 70b is detected by the rotation detection sensors 85a and 85b and the control circuit 106, the electric vehicle 10 is moved backward. The electric motors 40a and 40b are controlled so that Thus, the passenger can instruct the traveling direction of the electric vehicle 10 while moving the legs by rotating the pedals 72a and 72b backward. Further, since the passenger clearly shows his intention to reverse the electric vehicle 10 by turning on the reverse switch 46c and the reverse rotation of the cranks 70a and 70b, and the electric vehicle 10 moves backward accordingly, the passenger feels strange. Can be further suppressed.

  Moreover, if the forward switch 46b is turned on, the electric vehicle 10 can be advanced at a predetermined speed without a sense of incongruity.

  Furthermore, if forward rotation direction torque is applied to rotating shaft 68 by forward rotation of pedals 72a and 72b, electric vehicle 10 can be advanced at a speed based on the input torque. As a result, the movement of the passenger's legs can be further promoted without a sense of incongruity, and the exercise ability can be maintained and restored more effectively. Further, even if the input torque is zero, if the pedaling is performed in the forward direction, the vehicle can move forward at a speed based on the pedaling speed.

FIG. 14 is a side view illustrating the state of the left leg of the occupant when the pedal 72a is at the highest position (uppermost position). FIG. 15 is a side view illustrating the state of the left leg of the occupant when the pedal 72a is in the foremost position (frontmost position). FIG. 16 is a side view illustrating the state of the left leg of the occupant when the pedal 72a is in the lowest position (lowermost position). FIG. 17 is a side view illustrating the state of the left leg of the occupant when the pedal 72a is at the rearmost position (the rearmost position). It can be seen from FIGS. 14 to 17 that the passenger can bend the leg comfortably regardless of the position of the pedal 72a. That is, it can be seen that even if the configuration is compact, the passenger can rotate (revolve) the pedal 72a in a comfortable posture.
14 to 17 show only the left leg of the occupant, it goes without saying that the right leg moves similarly.

  When the rotation mechanism 64 is used, the passenger uses the left leg from the state where the pedal 72a is in the lowest position (the state shown in FIG. 16) to the state where the pedal 72a is in the rearmost position (the state shown in FIG. 17). Thus, the pedal 72a is moved toward the torso side. The same applies to right leg exercises. Therefore, it is possible to maintain and restore not only the muscle strength for stretching the knee but also the muscle strength for bending the knee. Further, in order to rotate the pedals 72a and 72b along the tracks of the cranks 70a and 70b, ankle flexibility is required rather than a simple stepping motion. Therefore, it is possible to maintain and restore athletic ability from this point. In this way, even with a compact configuration that allows traveling on the sidewalk, the passenger can exercise with a comfortable posture, and the exercise ability of the passenger can be sufficiently maintained and recovered.

  According to the electric vehicle 10, the transmission mechanism T is used as a load portion that applies a load to the rotation of the cranks 70a and 70b. Accordingly, an appropriate load is applied to the cranks 70a and 70b, the movement of the legs of the occupant can be further promoted, and the exercise ability can be effectively maintained and recovered. Further, by using the transmission mechanism T, the load portion can be easily configured, and the rider can contribute to the traveling of the electric vehicle 10 as appropriate while exercising.

  Further, by using the one-way clutch 74b that transmits the forward rotation of the cranks 70a and 70b to the rear wheel 16b but does not transmit the reverse rotation of the cranks 70a and 70b, the pedals 72a, The load applied to the cranks 70a, 70b can be kept constant during the reverse rotation of the cranks 70a, 70b, so that the passenger can easily and reliably reverse the cranks 70a, 70b at any time.

  In addition, the magnitude | size of the electric vehicle 10 of this invention is not limited to the above-mentioned embodiment. The size of the electric vehicle 10 of the present invention can be arbitrarily set as long as it is allowed to run on a sidewalk (total length of 1200 mm or less, total height of 1090 mm or less, total width of 700 mm or less).

  In the above-described embodiment, the case where the front wheels 14a and 14b are driven by the electric motors 40a and 40b has been described, but the present invention is not limited to this. For example, the front wheels 14a and 14b may be driven using one electric motor, or only one of the front wheels 14a and 14b may be driven using one electric motor. Further, the rear wheels 16a and / or 16b may be driven using an electric motor.

  In the above-described embodiment, the case where only the rear wheel 16b is rotated along with the rotation of the pedals 72a and 72b in the direction of the arrow B1 has been described. You may do it. Further, the front wheels 14a and / or 14b may be rotated by the rotation of the pedals 72a and 72b.

  Further, both the rear wheels 16a and 16b may be rotated by the passenger from the pedals 72a and 72b via the transmission mechanism and the differential gear (differential gear mechanism).

  In the above-described embodiment, the case where the cranks 70a and 70b are provided at the left end and the right end of the rotating shaft 68 has been described. However, the positions of the cranks 70a and 70b are not limited to this. The crank 70a may be provided slightly to the right of the left end portion of the rotating shaft 68, and the crank 70b may be provided to the left of the right end portion of the rotating shaft 68.

  In the above-described embodiment, the case where the front wheels 14a and 14b are arranged at the front end of the frame 12 has been described, but the positions of the front wheels 14a and 14b are not limited thereto. The front wheels 14 a and 14 b may be disposed slightly rearward from the front end of the frame 12.

  In the above-described embodiment, the case where the rear wheels 16a and 16b are arranged at the rear end of the frame 12 has been described. However, the positions of the rear wheels 16a and 16b are not limited thereto. The rear wheels 16 a and 16 b may be disposed slightly forward from the rear end of the frame 12.

  In the above-described embodiment, the transmission mechanism T is used as the load unit, but the present invention is not limited to this. As the load portion, any member capable of applying a load to the rotation of the cranks 70a and 70b can be used.

  Although the preferred embodiment of the present invention has been described above, it is apparent that various modifications can be made without departing from the scope and spirit of the present invention. The scope of the invention is limited only by the appended claims.

Claims (9)

A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A seat provided on the frame between the pair of front wheels and the pair of rear wheels;
A rotation shaft provided on the frame so as to extend in the left-right direction in front of the front end of the seat between the pair of front wheels and the pair of rear wheels, a direction substantially perpendicular to the rotation shaft and directions opposite to each other A rotating mechanism including a pair of cranks provided on both sides of the rotating shaft so as to extend to the shaft, and a pair of pedals attached to one and the other of the pair of cranks;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A control unit that controls the electric motor so that the at least one wheel rotates in the same direction as the forward / reverse rotation direction of the crank according to the forward / reverse rotation direction of the crank detected by the detection unit; Electric vehicle. A torque detector for detecting torque applied to the rotating shaft;
2. The electric vehicle according to claim 1, wherein the control unit controls the electric motor to advance the vehicle when the forward torque applied to the rotating shaft is detected by the torque detection unit. A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A seat provided on the frame between the pair of front wheels and the pair of rear wheels;
A rotation shaft provided on the frame so as to extend in the left-right direction in front of the front end of the seat between the pair of front wheels and the pair of rear wheels, a direction substantially perpendicular to the rotation shaft and directions opposite to each other A rotating mechanism including a pair of cranks provided on both sides of the rotating shaft so as to extend to the shaft, and a pair of pedals attached to one and the other of the pair of cranks;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A control unit that controls the electric motor to rotationally drive the at least one wheel in the same direction as the rotation direction of the crank detected by the detection unit;
And a first instruction unit that gives an instruction for advancing the vehicle,
The control unit, the even if it is not detected crank before rolling, when an instruction for advancing the vehicle by the first instruction part is input, controls the electric motor so as to advance the vehicle, electrodeposition A moving vehicle. A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A seat provided on the frame between the pair of front wheels and the pair of rear wheels;
A rotation shaft provided on the frame so as to extend in the left-right direction in front of the front end of the seat between the pair of front wheels and the pair of rear wheels, a direction substantially perpendicular to the rotation shaft and directions opposite to each other A rotating mechanism including a pair of cranks provided on both sides of the rotating shaft so as to extend to the shaft, and a pair of pedals attached to one and the other of the pair of cranks;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A control unit that controls the electric motor to rotationally drive the at least one wheel in the same direction as the rotation direction of the crank detected by the detection unit;
And a load portion providing a load to rotation of the crank, an electric vehicle. A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A rotation shaft provided on the frame so as to extend in the left-right direction, a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction substantially orthogonal to the rotation shaft and in opposite directions to each other, and A rotation mechanism including a pair of pedals attached to one and the other;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A second instruction unit for giving an instruction to reverse the vehicle ;
A control unit that controls the electric motor to rotationally drive the at least one wheel in the same direction as the rotation direction of the crank detected by the detection unit;
The control unit controls the electric motor to reverse the vehicle when an instruction to reverse the vehicle is input by the second instruction unit and reverse rotation of the crank is detected by the detection unit . dynamic vehicle power. A third indicator for setting the operation mode of the vehicle to an auto mode or an assist mode;
In the control unit, the operation mode of the vehicle is set to the auto mode by the third instruction unit, an instruction to reverse the vehicle is input by the second instruction unit, and the reverse rotation of the crank is detected by the detection unit. The electric vehicle according to claim 5 , wherein when the operation is performed, the electric motor is controlled to reverse the vehicle. A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A rotation shaft provided on the frame so as to extend in the left-right direction, a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction substantially orthogonal to the rotation shaft and in opposite directions to each other, and A rotation mechanism including a pair of pedals attached to one and the other;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A third instruction unit for setting the operation mode of the vehicle to an auto mode or an assist mode ;
A control unit that controls the electric motor to rotationally drive the at least one wheel in the same direction as the rotation direction of the crank detected by the detection unit;
The control unit controls the electric motor to move the vehicle backward when the operation mode of the vehicle is set to the auto mode by the third instruction unit and the reverse rotation of the crank is detected by the detection unit. control to, electrostatic dynamic vehicle. A frame extending in the front-rear direction;
A pair of front wheels arranged side by side in the left-right direction at the front of the frame;
A pair of rear wheels arranged side by side in the left-right direction at the rear of the frame;
A rotation shaft provided on the frame so as to extend in the left-right direction, a pair of cranks provided on both sides of the rotation shaft so as to extend in a direction substantially orthogonal to the rotation shaft and in opposite directions to each other, and A rotation mechanism including a pair of pedals attached to one and the other;
An electric motor that drives at least one of the pair of front wheels and the pair of rear wheels;
A detection unit for detecting a rotation direction of the crank;
A control unit that controls the electric motor to rotationally drive the at least one wheel in the same direction as the rotation direction of the crank detected by the detection unit;
A load portion for applying a load to the rotation of the crank,
The load unit includes a transmission mechanism for transmitting the rotation of the crank to at least one wheel of the pair of front wheels and the pair of rear wheels, electric dynamic vehicle.   The electric vehicle according to claim 8, wherein the transmission mechanism includes a one-way clutch that transmits forward rotation of the crank to a wheel side to which rotation of the crank is to be transmitted but does not transmit reverse rotation of the crank.

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