DE102020134352A1 - DRIVE UNIT FOR MUSCLE-POWERED VEHICLE AND MUSCLE-POWERED VEHICLE - Google Patents

Abstract

A power unit for a human powered vehicle includes a housing and a first connector. The housing is provided with an input rotary shaft to which human driving force is applied. The first connector is integrally formed with the housing as a one-piece component and is configured to be joined to a frame of the human powered vehicle. The first joint includes a contact portion and a first hole. The contact portion is configured to contact the frame from above or in a direction parallel to a flat plane in a state in which the human powered vehicle is placed on the flat plane and the drive unit is attached to / with the frame. The first hole is / is formed in the contact portion and is configured to receive the part of a first connector which couples the first connector to / to the frame and turns into a first Direction that is non-parallel to the input rotary shaft.

Description

BACKGROUND

This application claims priority from Japanese Patent Application No. JP 2019-238823 , filed on December 27, 2019. The entire disclosure of Japanese Patent Application No. JP 2019-238823 is hereby incorporated by reference.

The present disclosure relates to a power unit for a human powered vehicle and a human powered vehicle.

Japanese Patent Application Laid-Open 2017-24700 describes an example of a drive unit for a muscle-powered vehicle including a connection or joint, connected or joined to a frame of the muscle-powered vehicle. The joint includes a hole joined with a bolt. The hole opens in a width direction from the human powered vehicle.

SUMMARY

One object of the present disclosure is to provide a drive unit for a muscle-powered vehicle and a muscle-powered vehicle that enable improved joining or connection to a frame of the muscle-powered vehicle.

A power unit for a human powered vehicle in accordance with a first aspect of the present disclosure includes a housing and a first connector. The housing is provided with an input rotary shaft to which human driving force is applied. The first joint or connection point is formed integrally with the housing as a one-piece component and is configured to be connected or joined to a frame of the human powered vehicle. The first connection point includes a contact portion and a first hole. The contact portion is configured to touch or come into contact with the frame from above or in a direction parallel to a level plane or flat plane in a state in which the muscle-powered vehicle is placed on the flat plane and the drive unit is attached to / with is connected or joined to the frame. The first hole is formed in the contact portion, configured to receive part of a first fastener, coupling the first connection point to the frame, and extends in a first direction which is non-parallel to the input rotary shaft.

With the drive unit in accordance with the first aspect, the part of the first link member is received in the first hole extending in a first direction that is non-parallel to the input rotary shaft. This allows / enables joining or connection to a frame of the muscle-powered vehicle in an ideal manner.

In accordance with a second aspect of the present disclosure, the drive unit according to the first aspect is set up in such a way that at least a part of the contact portion is arranged in a first area around a rotation axis of the frame defined between a seat tube of the frame and a chain stay of the frame Input rotary shaft in a view of the contact portion shown in an axial direction from the input rotary shaft in a state in which the drive unit is attached to the frame.

With the drive unit in accordance with the second aspect, at least a part of the contact portion of the drive unit in the first area contacts the frame in a view of the contact portion shown in the axial direction of the input rotary shaft in a state in which the drive unit is attached to / connected to the frame. This allows / enables joining or connection to a frame of the muscle-powered vehicle in an ideal manner.

In accordance with a third aspect of the present disclosure, the drive unit according to the first or second aspect is configured such that at least a part of the contact portion is arranged in a second area defined between a seat tube of the frame and a down tube of the frame around a Rotation axis of the input rotary shaft in a view of the contact portion shown in an axial direction of the input rotary shaft in a state in which the drive unit is attached to the frame.

With the drive unit in accordance with the third aspect, at least the part of the contact portion of the drive unit in the second area contacts the frame in a view of the contact portion shown in the axial direction of the input rotary shaft in a state in which the drive unit is attached to / with the frame. This allows / enables Joining with a frame of the human powered vehicle in an ideal way.

A power unit for a human powered vehicle in accordance with a fourth aspect of the present disclosure includes a housing and a first connector. The housing is provided with an input rotary shaft to which human driving force is applied. The first connector is integrally formed with the housing as a one-piece component and is configured to be joined to a frame of the human powered vehicle. The first joint includes a contact portion and a first hole. The contact portion is configured to contact the frame in a state in which the drive unit is attached to the frame. The first hole is formed in the contact portion, configured to receive part of a first connector, coupling the first connector to the frame, and extending in a first direction that is non-parallel to the Input rotation shaft is. At least a part of the contact portion is disposed in at least one of a first area defined between a seat tube of the frame and a chain stay of the frame about an axis of rotation of the input rotary shaft and a second area defined between a seat tube of the frame and a down tube of the frame Area around the axis of rotation of the input rotary shaft in a view of the contact portion shown in an axial direction of the input rotary shaft in a state in which the drive unit is connected to the frame.

With the drive unit in accordance with the fourth aspect, at least a part of the contact portion of the drive unit in at least one of the first area and the second area contacts the frame in a view of the contact portion shown in the axial direction of the input rotary shaft in a state in which the drive unit is joined to / with the frame. This allows / enables joining to a frame of the human powered vehicle in an ideal manner.

In accordance with a fifth aspect of the present disclosure, the drive unit according to any one of the first to fourth aspects is configured so that the contact portion on a portion of the housing except both ends with respect to a front-rear direction from the frame in one the state assembled with the frame is / is provided.

With the drive unit in accordance with the fifth aspect, the contact portion is provided at a portion of the housing except both ends with respect to a front-rear direction of the frame in a state attached to the frame. This allows / enables joining to a frame of the human powered vehicle in an ideal manner.

A power unit for a human powered vehicle in accordance with a sixth aspect of the present disclosure includes a housing and a first connector. The housing is provided with an input rotary shaft to which human driving force is applied. The first connector is integrally formed with the housing as a one-piece component and is configured to be joined to a frame of the human powered vehicle. The first joint includes a contact portion and a first hole. The contact portion is configured to contact the frame in a state in which the drive unit is attached to / with the frame. The first hole is formed in the contact portion, configured to receive the part of a first connector that couples the first connector to / to / with the frame and extends in a first direction that is not - is parallel to the input rotary shaft. The contact portion is provided on a portion of the housing except both ends with respect to a front-rear direction of the frame in a state in which the drive unit is attached to the frame.

With the drive unit in accordance with the sixth aspect, the contact portion is provided on a portion of the housing except both ends with respect to the front-rear direction of the frame in a state in which the contact portion is connected to the Frame is joined. This allows / enables joining to a frame of the human powered vehicle in an ideal manner.

In accordance with a seventh aspect of the present disclosure, the drive unit according to any one of the first to sixth aspects further comprises at least one second connection point formed integrally with the housing as a one-piece component, adapted to be joined to the frame and provided at a position different from that of the first joint. The at least one second connector includes a second hole configured to receive the part of a second connector that couples the second connector to the frame, and extends in a second direction that is parallel to the input rotary shaft.

With the drive unit in accordance with the seventh aspect, the part of the first link is received in the second hole extending in the second direction that is parallel to the input rotary shaft. This allows / enables further stable joining to / with the frame.

In accordance with an eighth aspect of the present disclosure, the drive unit according to the seventh aspect is configured such that the at least one second connection point includes a plurality of second connection points and the second connection points are provided at different positions around the input rotary shaft.

With the drive unit in accordance with the eighth aspect, the second connection points allow / enable further stable joining to / with the frame.

In accordance with a ninth aspect of the present disclosure, the drive unit according to the eighth aspect is configured such that the input rotary shaft is arranged in an area surrounded by the second connection points and the contact portion is arranged in a view shown in an axial direction from the input rotary shaft.

With the drive unit in accordance with the ninth aspect, stable joining to / with the frame is further allowed / enabled.

In accordance with a tenth aspect of the present disclosure, the drive unit according to any one of the first to ninth aspects is configured so that the first direction is substantially orthogonal to an axial direction of the input rotary shaft.

With the drive unit in accordance with the tenth aspect, the part of the connecting member is received in the first hole extending in the first direction that is substantially orthogonal to the axial direction of the input rotary shaft.

In accordance with an eleventh aspect of the present disclosure, the power unit according to any one of the first to tenth aspects is configured so that the first direction is relative to a front-rear direction of the frame in a view shown in an axial direction from the input rotary shaft in FIG is inclined to a state in which the drive unit is attached to / with the frame.

With the drive unit in accordance with the eleventh aspect, the part of the link member is received in the first hole extending in the first direction inclined relative to the front-rear direction of the frame. This allows / enables joining to a frame of the human powered vehicle in an ideal manner.

In accordance with a twelfth aspect of the present disclosure, the drive unit according to any one of the first to eleventh aspects is configured such that at least the part of the contact portion in a central portion of the housing with respect to an axial direction of the input rotary shaft is in a state is arranged in which the drive unit is joined to / with the frame.

With the drive unit in accordance with the twelfth aspect, at least the part of the contact portion is arranged in a central portion of the housing with respect to the axial direction of the input rotary shaft in a state in which the drive unit is attached to the frame . This allows / enables stable joining to / with the frame in an ideal manner.

In accordance with a thirteenth aspect of the present disclosure, the power unit according to any one of the first to twelfth aspects further includes a motor that applies propulsive force to the human powered vehicle and is provided on the housing.

With the drive unit in accordance with the thirteenth aspect, the drive unit including the motor configured to apply propulsive force to the human powered vehicle is ideally attached to / with the frame.

In accordance with a fourteenth aspect of the present disclosure, the drive unit according to the thirteenth aspect is configured such that the housing includes a first portion that supports the motor and a second portion that supports the input rotary shaft. At least the part of the first joint is provided at a joint portion connecting the first portion and the second portion.

With the drive unit in accordance with the fourteenth aspect, at least the part of the first joint at the joint portion connecting the first portion and the second portion is provided. This allows / enables joining to a frame of the human powered vehicle in an ideal manner.

In accordance with a fifteenth aspect of the present disclosure, the power unit according to any one of the first to fourteenth aspects is configured such that at least the part from the first joint toward a rear side of the human powered vehicle from the input rotary shaft is located in a state in which the drive unit is joined to / with the frame.

With the drive unit in accordance with the fifteenth aspect, at least the part from the first joint toward the rear of the human powered vehicle is located in a state in which the drive unit is joined to the frame. This allows / enables stable joining to / with the frame in an ideal manner.

In accordance with a sixteenth aspect of the present disclosure, the drive unit according to any one of the first to fifteenth aspects is configured such that the first hole is defined by a first internal thread and the first connecting member includes a bolt.

With the drive unit in accordance with the sixteenth aspect, the bolt allows / enables joining to / with the frame in an ideal manner.

A human powered vehicle in accordance with a seventeenth aspect of the present disclosure includes the human powered vehicle drive unit according to any one of the first to sixteenth aspects and a frame of the human powered vehicle.

With the human powered vehicle in accordance with the seventeenth aspect, the drive unit can be mounted on the frame in an ideal manner.

In accordance with an eighteenth aspect of the present disclosure, the human powered vehicle according to the seventeenth aspect is configured such that the frame includes a down tube, a seat tube, a chain stay, and a bracket connected to the down tube, the seat tube, and the chain stay. The contact section touches the holder or the holder (English: bracket).

With the human powered vehicle in accordance with the eighteenth aspect, the power unit can be attached to the frame through the bracket.

The power unit for the human powered vehicle and the human powered vehicle in accordance with the present disclosure enable joining to / with the frame of the human powered vehicle in an ideal manner.

Figure list

• 1 Fig. 13 is a first side view of a power unit for a human powered vehicle and a human powered vehicle in accordance with an embodiment.
• 2 FIG. 14 is a second side view of the power unit for the human powered vehicle and a frame of the human powered vehicle illustrated in FIG 1 .
• 3 FIG. 13 is a perspective view of the power unit for the human powered vehicle shown in FIG 1 .
• 4th FIG. 13 is a perspective view of the power unit for the human powered vehicle shown in FIG 1 , shown in a direction different from 3 differs.
• 5 FIG. 13 is a first side view of the power unit for the human powered vehicle shown in FIG 1 .
• 6th FIG. 13 is a second side view of the power unit for the human powered vehicle shown in FIG 1 .
• 7th FIG. 13 is an enlarged side view of the periphery of the power unit for the human powered vehicle shown in FIG 1 .
• 8th FIG. 13 is an enlarged side view of the periphery of the power unit for the human powered vehicle shown in FIG 2 .
• 9 FIG. 13 is an enlarged rear view of the periphery of the drive unit for the human powered vehicle shown in FIG 1 .
• 10 FIG. 13 is a cross-sectional view taken along line D10-D10 in FIG 5 .
• 11 FIG. 13 is a block diagram showing the electrical configuration of the human powered vehicle which is the human powered vehicle drive unit of FIG 1 and includes a charging system.
• 12th FIG. 13 is a flow diagram of processes executed by a controller from a control device shown in FIG 11 to switch / operate the status of the drive unit.
• 13th FIG. 13 is a flow diagram of a process performed by a controller of FIG an interface device shown in 11 to display information corresponding to first information on a display.
• 14th FIG. 13 is a flow diagram of a process performed by the controller from the control device illustrated in FIG 11 to transmit a signal including the first information (s).
• 15th FIG. 13 is a flow diagram of a process performed by a controller from a loader shown in FIG 11 to stop loading.
• 16 Fig. 13 is an enlarged side view of the periphery of a drive unit for the human powered vehicle in accordance with a modified example.

MODES FOR CARRYING OUT THE DISCLOSURE

First embodiment

A drive unit 30th for a human powered vehicle and a human powered vehicle 10 in accordance with a first embodiment will now be referred to with reference to FIG 1 to 15th described. The muscle-powered vehicle 10 is a vehicle that includes at least one wheel and is propelled at least by human power / muscle power. The muscle-powered vehicle 10 includes, for example, different types of bicycles such as a mountain bike, a racing bike, a city bike, a cargo bike, a handwheel, and a recumbent bike. The number of wheels on the human powered vehicle 10 is not limited. The muscle-powered vehicle 10 includes, for example, a unicycle and a vehicle that includes three or more bikes. The muscle-powered vehicle 10 is not limited to a vehicle powered only by human propulsion. The muscle-powered vehicle 10 includes an e-bike that not only uses human propulsion power, but also propulsion power from a motor for propulsion. The e-bike includes an electric assistance bike that supports the drive with an electric motor. In the following description, the human powered vehicle refers 10 on a bike.

The muscle-powered vehicle 10 and a frame 12th extend in a front-rear direction in a state in which the human powered vehicle 10 is placed on a flat plane. The front-rear direction includes a forward direction XI and a backward direction X2. The muscle-powered vehicle 10 and the frame 12th extend in a vertical direction in a state in which the human powered vehicle 10 is placed on a flat plane. The vertical direction includes an upward direction Y1 and a downward direction Y2.

The muscle-powered vehicle 10 includes a drive unit 30th and the frame 12th . Preferably includes the human powered vehicle 10 further wheels 14. The wheels 14 are through the frame 12th supported. The wheels 14 include a rear wheel 14A and a front wheel 14B.

Preferably the frame includes 12th a down tube 16 , a seat tube 18th , a chain stay 20th and a holder 22nd . Preferably the frame includes 12th a seat stay 21. In the present embodiment, the frame is 12th a diamond-shaped frame. In the present embodiment, the bracket 22nd with the down tube 16 , the seat tube 18th and the chain stay 20th connected. For example is the chain stay 20th by a suspension to the bracket or the seat tube 18th connected.

The drive unit 30th includes a housing 32 and a first connection point 34 . The case 32 is / becomes with an input rotary shaft 36 provided to which human driving force is applied. Preferably the drive unit includes 30th the input rotation shaft 36 . The input rotation shaft 36 serves as a crank axle of the human powered vehicle 10 . The drive unit 30th do not include the input rotary shaft 36 . The first connection point 34 is integral with the housing 32 formed as a one-piece component and adapted to attach to / with the frame 12th to be joined / to be. The first connection point 34 includes a contact section 38 and a first hole 40 . Preferably the contact portion is 38 set up to the frame 12th from above or in a direction parallel to a flat plane in a state in which the human powered vehicle 10 is placed on the flat surface and the drive unit 30th to / with the frame 12th is joined. The contact section 38 is at a peripheral portion of the housing 32 provided. The contact section 38 is, for example, on one of the peripheral portion of the housing 32 outward from the housing 32 extending overhang 32X provided. The contact portion is preferably in contact 38 the bracket 22nd . Preferably the bracket includes 22nd a slot 22A. At least the part of the drive unit 30th is located in the slot 22A. The contact portion is preferably in contact 38 an inner wall surface 22D of the slot 22A. The bracket 22nd can with at least one of the down tube 16 , the seat tube 18th and the chain stay 20th be connected by welding or by an adhesive. The bracket 22nd can be integral as a one-piece component with at least one of the down tube 16 , the seat tube 18th and the chain stay 20th be educated. The bracket 22nd can be formed from, for example, a metallic material and contain, for example, fiber-reinforced plastic material containing carbon fibers.

Preferably is / becomes the first hole 40 through a first internal thread 40A defined and a first connecting element 42 includes a bolt 42A . The bolt 42A can be, for example, a hexagon head screw or a hexagon socket head screw. The first hole 40 is through the inner circumferential surface of the first internal thread 40A Are defined. In the present embodiment, the first is hole 40 a pocket hole. The first hole 40 can be a through hole. The peripheral surface of the housing 32 includes a first holder contact surface 38A around the first hole 40 on the input side with respect to the direction of insertion of the first connecting element 42 . Preferably, the first holder contact surface 38A is a plane that is substantially orthogonal to the direction in which the first hole is located 40 extends. The bracket 22nd includes a first through hole 22B. The first through hole 22B is formed in a wall of the slit 22A. The first connector 42 is inserted into the first through hole 22B from the outside of the slot 22A of the bracket 22nd and with the first internal thread 40A mated. The first through hole 22B is smaller in diameter than a head 42B of the bolt 42A . The between the head 42B of the bolt 42A and the contact section 38 Intermediate or clamped bracket 22nd fixes the drive unit 30th to / to / with the frame 12th . Preferably, the direction in which the first through hole 22B extends from the outer side of the slot 22A of the bracket 22nd extending toward the inside of the slit 22A, a downward direction or a direction parallel to a flat plane in a state in which the human powered vehicle 10 is placed on the flat plane. The first through hole 22B straightly extends. The section from the bracket 22nd holding the first holder contact surface 38A from the housing 32 is essentially flat. A washer may be between the first retainer contact surface 38A and the bracket 22nd be / will be provided. A washer can be placed between the head 42B of the bolt 42A and the bracket 22nd be / will be provided.

In a first example, the first is hole 40 in the contact section 38 formed, arranged to the / the part of the first connecting element 42 record which is the first connection point 34 to / to / with the frame 12th couples, and extending in a first direction A1 that is non-parallel to the input rotary shaft 36 is. Preferably the first hole extends 40 straight in the first direction A1. Preferably, the first direction A1 is substantially orthogonal to an axial direction from the input rotary shaft 36 . Preferably, the first direction A1 is relative to a fore-and-aft direction X of the frame 12th in a view shown in an axial direction from the input rotary shaft 36 in a state in which the drive unit 30th to / with the frame 12th is joined, inclined.

Preferably at least the part is from the contact portion 38 in a first area R1 in a view shown in the axial direction from the input rotary shaft 36 in a state in which the drive unit 30th to / with the frame 12th is joined, arranged. In the present embodiment, the first area R1 is between the seat tube 18th from the frame 12th and the chain stay 20th from the frame 12th about an axis of rotation C1 from the input rotary shaft 36 Are defined.

The contact section is preferably / becomes 38 in one to / with the frame 12th joined state on a portion of the housing 32 except for both ends 33A and 33B, with respect to the front-rear direction X of the frame 12th provided.

Preferably the drive unit includes 30th further an engine 44 . The motor 44 includes one or more electric motors. The electric motor is, for example, a brushless motor. Preferably is / becomes the engine 44 on the housing 32 provided and set up to provide propulsive power to the muscle-powered vehicle 10 to raise. At least the part of the engine 44 is in one inside the case 32 formed receiving cavity arranged. Preferably, an output shaft 44A extends from the engine 44 in a direction parallel to the axis of rotation C1 from the input rotary shaft 36 . Preferably the housing includes 32 a first section 32A who is the engine 44 supports and a second section 32B which is the input rotation shaft 36 supports. Preferably, at least the part is / will from the first connection point 34 at a connecting portion 32C , the first section 32A and the second section 32B connecting, provided. Preferably at least the part is from the first connection point 34 toward the rear of the human powered vehicle 10 from the input rotary shaft 36 located in a state in which the drive unit 30th to / with the frame 12th is joined. Preferably the first section includes 32A the first end 33A of the housing 32 in the front-back direction X from the frame 12th . Preferably the first end is 33A from the housing 32 is towards the front of the frame 12th located. Preferably the second section includes 32B the second end 33B of the housing 32 in the front-back direction X from the frame 12th . Preferably, the second end 33B is from the housing 32 in the backward direction X2 from the frame 12th located. Preferably at least the part is from the first connection point 34 is between the input rotary shaft 36 and output shaft 44A from the engine 44 arranged in a direction in which a straight line passes through the axis of rotation C1 from the input rotary shaft 36 and the axis of rotation C2 from the output shaft 44A of the engine 44 in a view shown in an axial direction from the input rotary shaft 36 , extends.

It is preferably in a state in which the drive unit 30th to / with the frame 12th is joined, at least the / the part of the contact portion 38 in a central portion of the housing 32 with respect to the axial direction from the input rotary shaft 36 arranged. In a state in which the drive unit 30th to / with the frame 12th is joined, the contact portion 38 can be offset from the central portion of the housing 32 in the axial direction from the input rotary shaft 36 be / will be arranged.

Preferably the drive unit includes 30th further at least one second connection point 46 . The second connection point 46 is integral with the housing 32 formed as a one-piece component, adapted to attach to / with the frame 12th to be joined and provided at a position that differs from the first joint 34 differs. The at least one second connection point 46 includes a second hole 48 . The second hole 48 is arranged to the / the part of a second connecting element 50 record which the second connection point 46 to / to / with the frame 12th couples and extends in a second direction A2 that is parallel to the input rotary shaft 36 is.

Preferably is / becomes the second hole 48 defined by a second internal thread 48A, and the second connector 50 includes a bolt 50A. The second internal thread 48A may be formed integrally with a second connector body 46X as a one-piece component, or may be formed separately from the second connector body 46X and joined to the second connector body 46X. The peripheral surface of the housing 32 includes a second holder contact surface 39A around the second hole 48 on the drive side with respect to the insertion direction of the second connecting element 50 . Preferably, the second holder contact surface 39A is a plane that is substantially orthogonal to the direction in which the second hole is located 48 extends. The second holder contact surface 39A may be formed on the second connector body 46X, the second internal thread 48A, or the second connector body 46X and the second internal thread 48A. The second hole 48 is defined by the inner peripheral surface of the second internal thread 48A. In the present embodiment, the second hole is 48 a through hole. The second hole 48 can be a blind hole. The bracket 22nd includes a second through hole 22E. The second through hole 22E is formed in the wall of the slot 22A. The second connector 50 is into the second through hole 22E from the outside of the slot 22A of the bracket 22nd inserted and mated with the second internal thread 48A. Preferably, the direction in which the second through hole 22E extends from the outer side of the slot 22A of the bracket 22nd extending toward the inside of the slot 22A, parallel to the axial direction of the input rotary shaft 36 in a state in which the human powered vehicle 10 is placed on a flat plane. The second through hole 22E extends straight. The section from the bracket 22nd showing the second holder contact surface 39A from the housing 32 is essentially flat. In a case where the second internal thread 48A is separated from the second joint 46 is / is formed and with the second connection point 46 is / is joined, the second internal thread 48A is / is formed by, for example, a screw. For example, the second internal thread 48A may be embedded in and formed integrally with the second joint body 46X. The second internal thread 48A can, for example, be inserted into a second connection point 46 formed hole / will be pressed and movable in the direction in which the hole extends. For example, the second internal thread 48B may be one between the second joint 46 and the bracket 22nd include arranged flange. For example, an adjustment element such as a washer can be placed between the second joint 46 and the bracket 22nd be / will be provided. The second connector 50 is inserted into the adjustment element. A washer may be between a head of the bolt 50A of the second link 50 and the bracket 22nd be / will be provided.

Preferably, the includes at least one second connection point 46 a plurality of second connection points 46 . The second connection points 46 are / will be at different positions around the input rotary shaft 36 provided. At least one of the second connection points 46 is in the peripheral portion of the housing 32 provided. At least one of the second connection points 46 is / is on a protrusion on the housing 32 provided. In a state in which the drive unit 30th to / with the frame 12th is joined, touches at least one of the second connection points 46 the bracket 22nd . Preferably touched in a state in which the drive unit 30th to / with the frame 12th is joined, touch the second connection points 46 all the bracket 22nd . Preferably touched in a state in which the drive unit 30th to / with the frame 12th is joined, at least one of the second connection points 46 the inner wall surface 22D from the slot 22A. Preferably touch in a state in which the drive unit 30th to / with the frame 12th is joined, the second connection points 46 all of the inner wall surface 22D from the slot 22A.

Preferably the second include connection points 46 at least one second joint 46A extending toward one side in the axial direction from the input rotary shaft 36 opens and at least one second joint 46B that extends toward the other side in the axial direction from the input rotary shaft 36 opens. The at least one second connection point 46A preferably includes a plurality of second connection points 46A. The second connection points 46A are at different positions around the input rotary shaft 36 provided. Preferably, the at least one second connection point 46B includes a plurality of second connection points 46B. The second connection points 46B are at different positions around the input rotary shaft 36 provided. In the present embodiment, the number of the at least one second connection point 46A is equal to the number of the at least one second connection point 46B. However, the number of the at least one second connection point 46A may differ from the number of the at least one second connection point 46B. The structure of the at least one second connection point 46A can be different from the structure of the at least one second connection point 46B. For example, in the at least one second connection point 46A, the second internal thread 48A is formed integrally with the second connection point body 46X as a one-piece component. In the at least one second connection point 46B, the second internal thread 48A is formed separately from the second connection point body 46X and is joined to the second connection point body 46X.

At least one of the second connection points 46A and at least one of the second connection points 46B may be in the same position or in different positions around the input rotary shaft 36 be / will be provided. At least one of the second connection points 46A and at least one of the second connection points 46B may be connected to or separated from each other in the axial direction of the input rotary shaft 36 become. In the present embodiment, two second connection points 46A and two second connection points 46B are / are on the housing 32 provided. In the present embodiment, one of the two second connection points 46A is at the same position around the input rotary shaft 36 as one of the two second junctions 46B. In the present embodiment, one of the two second connection sites 46A is connected to and integrally formed as a one-piece component with one of the two second connection sites 46B. In the present embodiment, the other of the two second connection points 46A is at the same position around the input rotary shaft 36 provided like the other of the two second connection points 46B. In the present embodiment, the other of the two second connectors 46A is connected to and integrally formed as a one-piece component with the other of the two second connectors 46B. Preferably one of the at least one second connection point is 46 in a downward direction Y2 from the chain stay 20th located in a state in which the muscle-powered vehicle 10 is placed on a flat surface and the drive unit 30th to / with the frame 12th is joined. Preferably there are at least one of the at least one second connection point 46 and the first connection point 34 on opposite sides of one through the rotation axis C1 from the input rotation shaft 36 extending straight line and the axis of rotation C2 from the output shaft 44A of the engine 44 as shown in the axial direction from the input rotary shaft 36 , arranged. Preferably, in a state in which the human powered vehicle 10 is placed on a flat surface and the drive unit 30th to / with the frame 12th is joined, one of the at least one second connection point 46 in the forward direction X1 from the input rotary shaft 36 arranged and is another one of the at least one second connection point 46 in the reverse direction X2 from the input rotary shaft 36 arranged.

Preferably the input rotary shaft is 36 in one through the second connection points 46 and the contact section 38 surrounded area R3 shown in a view in the axial direction from the input rotary shaft 36 , arranged. In the present embodiment, the input rotary shaft is 36 partly in that by the second connection points 46 and the contact section 38 surrounded area R3 shown in a view in the axial direction from the input rotary shaft 36 , arranged. Preferably, the axis of rotation C1 is from the input rotary shaft 36 in that through the second connection points 46 and the contact section 38 surrounded area R3 shown in a view in the axial direction from the input rotary shaft 36 , arranged. In a view shown in the axial direction from the input rotary shaft 36 , the area R3 is connected by a straight line LA the adjacent second connection points 46 to or with respect to the input rotary shaft 36 , and straight lines LB, connecting the contact portion 38 to / with the adjacent second connection points 46 to or with respect to the input rotary shaft 36 , educated. In the present embodiment, the second include connection points 46 two second connection points 46A and two second connection points 46B. Shown in a view in the axial direction from the input rotary shaft 36 the position of one of the two second connection points 46A coincides with the position of one of the two second connection points 46B. Shown in a view in the axial direction from the input rotary shaft 36 the position of the other of the two second connection points 46A coincides with the position of the other of the two second connection points 46B. The straight line LA that joins the adjacent second junctions 46 around the input rotation shaft 36 , in a view shown in the axial direction from the input rotary shaft 36 , connecting, is a straight line that joins the centers of the second holes 48 from the two second junctions 46A and 46B around the input rotary shaft 36 in a view shown in the axial direction from the input rotary shaft 36 , connects.

When viewed from the axial direction from the input rotation axis 36 is each of the second mounting portions 46A, 46B and the contact portion 38 with the contact section 38 connected by two straight lines LB. When viewed from the axial direction from the input rotation axis 36 the second mounting portions 46A, 46B are to each other about the input rotation axis 36 adjacent. When viewed from the axial direction from the input rotation axis 36 the two straight lines LB connect each of the centers of the second hole 48 from the two second brackets 46 to the point where the plane including the holder contact surface 38A and the center of the first hole 40 intersect.

In the present embodiment, the area R3 is in a view shown in the axial direction from the input rotary shaft 36 , triangular.

Preferably the drive unit includes 30th further an output section 54. The output section 54 is, for example, with the input rotary shaft 36 connected and brings rotation to the input rotary shaft 36 on. Preferably, the output section 54 is around the input rotary shaft 36 provided so that the axis of rotation of the output section 54 substantially coincides with the axis of rotation C1 of the input rotary shaft 36 matches. The input rotation shaft 36 and the output portion 54 are connected to be integral with each other and bidirectionally about the axis of rotation C1 from the input rotary shaft 36 to rotate or turn. A one-way clutch 58 may be interposed between the input rotary shaft 36 and the output portion 54 are provided to receive rotational force from the input rotational shaft 36 to the output portion 54 in a case where, for example, the input rotary shaft is in one direction 36 rotates or is rotated that the muscle-powered vehicle 10 moved forward. The one-way clutch 58 includes, for example, a roller clutch, a ratchet-ratchet clutch, or an overrunning clutch. Preferably, an axial end of the output section 54 is / is in this way on the housing 32 provided to by the housing 32 to be exposed. An axial end of the output section 54 contains a coupling or attachment part designed to be attached or coupled to a chain wheel or a belt pulley. The connecting part is / is provided on an outer peripheral part of the driven section 54. The attachment part includes, for example, gears that extend in the axial direction from the input rotary shaft 36 extend.

Preferably the drive unit includes 30th further a speed reducer 56. The speed reducer 56 reduces the rotational speed of that of the motor 44 obtained / received driving force and transmits the driving force to / to the output portion 54. Shown in a view in the axial direction from the input rotary shaft 36 is the part of the reduction gear 56 between the axis of rotation C2 of the output shaft 44A of the engine 44 and the rotation axis C1 from the input rotation shaft 36 arranged in a direction in which a straight line passes through the axis of rotation C1 from the input rotary shaft 36 and the axis of rotation C2 from the output shaft 44A of the engine 44 extends. Preferably, the reduction gear 56 includes gears. In the present embodiment, the gears include four gears, and the reduction gear 56 reduces the rotation speed in two stages. The speed reducer 56 includes two or more intermediate shafts 56A. In the present embodiment, the speed reducer 56 includes an intermediate shaft 56A. A first gear 56B and a second gear 56C are provided on the intermediate shaft 56A and arranged side by side in the axial direction. For example, one is on output shaft 44A from the engine 44 The provided gear 44B meshes with the first gear 56B provided on the intermediate shaft 56A, and the second gear 56C provided on the intermediate shaft 56A meshes with the gear 54A provided on the output portion 54. Shown in a view in the axial direction from the input rotary shaft 36 can have an axis of rotation CX of at least one of the Intermediate shafts 56A on one through the axis of rotation C1 from the input rotary shaft 36 and the axis of rotation C2 from the output shaft 44A of the engine 44 extending straight line LX and may be located up / above the straight line LX or down / below the straight line LX in a state in which the human powered vehicle 10 is placed on a flat plane. The reducer 56 is not limited in structure and may have any structure. For example, the reduction gear 56 may include a planetary gear train. For example, the reduction gear 56 may include a pulley and a belt. For example, the reduction gear 56 may include a sprocket and a chain. In a case where the drive unit 30th the input rotation shaft 36 rotates in a direction that the human powered vehicle rotates 10 moved forward, a second one-way clutch may be provided so as to receive rotational power from the input rotational shaft 36 to / to the engine 44 transferred to. The second one-way clutch can be between the output shaft 44A of the engine 44 and the reduction gear 56 can be provided. Alternatively, the second one-way clutch can be provided on the reduction gear 56 or between the reduction gear 56 and the output section 54.

Preferably the drive unit includes 30th furthermore a control device 62. The control device 62 contains a control or a controller 64. The controller 64 contains a processor which executes a predetermined control program. The processor includes, for example, a central processing unit (CPU) or a microprocessor unit (MPU). The processor can be located in a variety of separate locations. The controller 64 may include one or more microcomputers. Preferably, the controller 64 further includes memory. The memory stores different types of control programs and information that are used for different types of control processes. The memory includes, for example, a nonvolatile memory and a volatile memory. The non-volatile memory includes, for example, at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) and a flash memory. The volatile memory includes, for example, a random access memory (RAM).

Preferably, the controller 62 further includes a drive circuit 66 from the engine 44 . Preferably, drive circuit 66 and controller 64 are on the housing 32 provided. The drive circuit 66 and the controller 64 can be provided on, for example, the same conductor substrate. The drive circuit 66 includes an inverter circuit. The drive circuit 66 controls the from a battery unit 26 for a human powered vehicle to / to the engine 44 electrical energy provided. The drive circuit 66 and the controller 64 are connected by wireless or wired communication. The drive circuit 66 drives the motor 44 in accordance with a control signal from the controller 64.

The control device 62 preferably contains a communication unit 68. The communication unit 68 is set up to preferably establish communication with a component of a muscle-powered vehicle by means of, for example, Power Line Communication (PLC), Controller Area Network (CAN) or Universal Asynchronous Receiver / Transmitter (UART) The human powered vehicle component includes the human powered vehicle battery unit 26 and an interface device 28.

As in 11 shown, the human powered vehicle 10 an electrical system 24 for the human powered vehicle. Preferably, the electrical system 24 includes the drive unit 30th and the battery unit 26. The battery unit 26 is on the frame 12th provided. For example, the battery unit 26 can be in the down tube 16 from the frame 12th to be included. The battery unit 26 includes a first battery 26A. The first battery 26A includes one or more battery elements. The battery elements include rechargeable batteries. The battery unit 26 is set up to provide electrical energy to the control unit 62. The battery unit 26 further includes a controller 26B and a communication unit 26C.

The controller 26B includes a processor that executes a predetermined control program. The processor includes, for example, a CPU or an MPU. The processor can be provided in a variety of different locations. The controller 26B can include one or more microcomputers. Preferably, the controller 26B further includes memory. The memory stores different types of control programs and information used for different types of control processes. The memory includes, for example, a nonvolatile memory and a volatile memory. The nonvolatile memory includes, for example, at least one of a ROM, an EPROM, an EEPROM and a flash memory. The volatile memory includes, for example, a RAM. The controller 26B includes at least one of a timer and a clock.

Preferably, the communication unit 26C is connected to the controller 64 from the controller 62 by an electric cable or a wireless communication device in a manner that enables communication. The battery unit 26 is set up to establish communication with the controller 64 by, for example, Power Line Communication, CAN, or UART.

Preferably, the first battery 26A is connected to the drive circuit 66 by a first electrical cable 65A. The controller 64 controls the current / amperage provided by the electrical cable 65A to the drive circuit 66 to the motor 44 to control.

The electrical system 24 is controlled in a variety of control states. The control states include a first state, a second state, and a third state. The first state is a state in which the controller 64 is supplied with electric power from the first battery and the drive circuit 66 is supplied with electric power through the first electric cable 65A from the first battery 26A. The second state is a state in which the controller 64 is supplied with electric power from the first battery and the power consumption / power consumption by the controller 64 is lower than the first state. In the second state, electrical energy may be provided to / to the drive circuit 66 from the first battery 26A through the first electrical cable 65A, but electrical energy does not have to be provided to / to the drive circuit 66 from the first battery 26A through the first electrical cables 65A can be provided. The third state is a state in which the controller 64 is not supplied with electric power from the first battery and the drive circuit 66 is not supplied with electric power from the first battery 26A through the first electric cable 65A. In the first state, the controller 64 is set up to control the engine 44 in accordance with, for example, one of those on the input rotary shaft 36 applied human driving force, the rotational speed of the input rotary shaft 36 and the cruising speed / cruising speed of the human powered vehicle 10 to drive. The second state is a standby state in which the controller 64 controls the engine 44 to not propel. Preferably, in the first state and the second state, the controller 64 provides electrical power from the first battery 26A to the component of a human powered vehicle. In the third state, electrical power is not supplied from the first battery 26A to the component of a human powered vehicle.

The electrical system 24 preferably includes the interface device 28. The interface device 28 can include a cycle computer, a smartphone, a tablet computer, or a personal computer. The interface device 28 includes a display 28A, an operating section 28B, a controller 28C and a communication unit 28D. The display 28A includes, for example, a liquid crystal display or an organic EL display. The operating section 28B includes, for example, a power switch. The operating section 28B serves as a power switch of the electrical system 24, for example.

The controller 28C includes a processor that executes a predetermined control program. The processor includes, for example, a CPU or an MPU. The processor can be provided in a variety of different locations. The controller 28C may include one or more microcomputers. Preferably, the controller 28C further includes memory. The memory stores different types of control programs and information used for different types of control processes. The memory includes, for example, a nonvolatile memory and a volatile memory. The nonvolatile memory includes, for example, at least one of a ROM, an EPROM, an EEPROM and a flash memory. The volatile memory includes, for example, a RAM.

Preferably, the communication unit 28D is connected to the controller 64 from the controller 62 by an electric cable or a wireless communication device in a manner that enables communication. The battery unit 26 is set up to establish communication with the controller 64 by, for example, Power Line Communication, CAN, or UART.

Preferably, the interface device 28 further includes a second battery 28E. The second battery 28E includes one or more battery elements. The battery elements include rechargeable batteries. The second battery 28E provides electrical power to the controller 28C from the interface device 28. The controller 28C may be configured to stop providing electrical energy from the second battery 28E to the controller 28C from the interface device 28 in a case where, for example, electrical energy is from the battery unit 26 to the interface device 28 is / is provided. The second battery 28E can be charged by the battery unit 26.

A process for switching / actuating the control states from the electrical system 24 executed by the controller 64 from the controller 62 will now be made with reference to FIG 12th described. In a case where the controller 64 is supplied with electric power, the controller 64 starts the process and proceeds to step S11 of the flowchart shown in FIG 12th away. With the completion of the in 12th In the flowchart shown in the diagram, the controller 64 repeats the process from step S 11 in predetermined cycles until the supply of electrical energy is stopped / ends.

In step S11, the controller 64 determines whether the electrical system 24 is in the first state. In a case where the electrical system 24 is in the first state, the controller 64 proceeds to step S12. In step S12, the controller 64 determines whether the drive unit 30th has been deactivated for a predetermined first time T1 or longer. For example, in a case where the engine 44 has not been driven for the predetermined first time T1 or longer that the drive unit 30th has been deactivated over the predetermined first time T1 or longer. In a case where the drive unit 30th has been deactivated for the predetermined first time T1 or longer, the controller 64 proceeds to step S13. In a case where the determination result in step S12 is NO, the controller 64 ends the process.

In step S13, the controller 64 switches the control state of the electrical system 24 from the first state to the second state, and then ends the process. In the second state, the controller 64 enters a sleep state, for example. In the second state, for example, the controller 64 may turn off a switch provided between the controller 64 and the drive circuit 66 to electrically isolate the controller 64 and the drive circuit 66. In the second state, for example, a switch provided between a battery and the drive circuit 66 can be turned off to electrically isolate the battery and the drive circuit 66.

In a case where the electrical system 24 is not in the first state in step S11, the controller 64 proceeds to step S14. In step S14, the controller 64 determines whether the electrical system 24 is in the second state. In a case where the electrical system 24 is not in the second state, the controller 64 ends the process. In a case where the electrical system 24 is in the second state, the controller 64 proceeds to step S15.

In step S15, the controller 64 determines whether the second state has continued for a predetermined second time T2 or longer. In a case where the second state has continued for a predetermined second time T2 or longer, the controller 64 proceeds to step S16.

In step S 16 The controller 64 switches the control state of the electrical system 24 from the second state to the third state and then ends the process.

In a case where the determination result of step S15 is NO, the controller 64 proceeds to step S17. In step S17, the controller 64 determines whether the operating section 28B has been operated or whether identification information (s) of at least one on the muscle-powered vehicle is / are available 10 has / have changed the provided sensor. The at least one on the muscle-powered vehicle 10 The sensor provided includes, for example, at least one of a sensor connected to the input rotary shaft 36 applied human driving force outputs a corresponding signal, a sensor, which is a with the rotation speed of the input rotary shaft 36 Outputs a corresponding signal and a sensor that a with the cruising speed / driving speed of the muscle-powered vehicle 10 outputs corresponding signal. At least one on the muscle-powered vehicle 10 The sensor provided transmits information to the controller 64 via an electrical cable or wireless communication device. When the controller 64 determines in step S16 that the operating section 28B has been operated or whether there is identification information of at least one on the human powered vehicle 10 has changed the sensor provided, the controller 64 proceeds to step S18. In step S18, the controller 64 switches the control state of the electrical system 24 from the second state to the first state, and then ends the process. In a case where the determination result in step S17 is NO, the controller 64 ends the process.

Preferably, the memory of the controller 64 stores the predetermined first time T1 in a variable manner. The controller 64 is set up to vary the predetermined first time T1, which is stored in the memory, with the operating section 28B of the interface device 28.

the memory of the controller 64 stores the predetermined second time T2 in a variable manner. The controller 64 is set up to vary the predetermined second time T2, which is stored in the memory, with the operating section 28B of the interface device 28

The controller 28C from the interface device 28 and the controller 64 from the control device 62 are connected by a second electrical cable 65B. The controller 28C of the Interface device 28 may be configured to supply the controller 64 of the control device 62 with electrical energy from the second battery 28E in a case in which the supply of electrical energy from the battery unit 26 to / to the controller 64 from the control device 62 stopped. For example, in a case in which the operating section 28B is operated, the controller 28C of the interface device 28 is configured to supply the controller 64 of the control device 62 with electrical energy from the second battery 28E and to supply the controller 64 of the control device 62 activate.

Preferably, in a case in which the drive unit 30th is in the third state, the controller 28C of the interface device 28 is set up to supply the controller 64 of the control device 62 with electrical energy from the second battery 28E and to receive first information (s) from the controller 64. The first information / s preferably contain / contain information relating to the state of at least one of the drive unit 30th and the battery unit 26. Preferably, the first information includes at least one of information relating to a failure of at least one of the drive unit 30th and the battery unit 26 and voltage level information from the first battery 26A from the battery unit 26. The controller 28C of the interface device 28 is configured to display information that correlates with the first information (s) on the display 28A to indicate in a case in which the controller 64 receives a signal from the control unit 62 including the first information (s). The second / second information includes, for example, at least one of text and graphics that enable the user to recognize the first information.

A process for displaying the second information (s) on the display 28A performed by the controller 28C of the interface device 28 will now be described with reference to FIG 13th described. In a case where the controller 28C is supplied with electric power in accordance with the operation from the operation section 28B, the controller 28C starts the process and proceeds to step S21 of the flowchart shown in FIG 13th away. With the completion of the in 13th As shown in the flowchart shown in the flowchart, the controller 28C repeats the process from step S21 in predetermined cycles until the electric power supply is stopped / ends.

In step S21, the controller 28C determines whether the operating section 28B has been operated. In a case where the operating section 28B has not been operated, the controller 28C ends the process. In a case where the operating section 28B has been operated, the controller 28C proceeds to step S22.

In step S22, the controller 28C determines whether the control state of the electrical system 24 is the third state. For example, the controller 28C determines that the control state from the electrical system 24 is the third state when the electrical power is not provided from the first battery 26A. In a case where the controller 28C determines that the control state of the electrical system 24 is not the third state, the controller 28C ends the process. In a case where the electrical system 24 is in the third state, the controller 28C proceeds to step S23.

In step S23, the controller 28C supplies the drive unit 30th with the electric power from the second battery 28E, inquires the first information (s) and proceeds to step S24.

In step S24, the controller 28C determines whether a signal including the first information (s) has been received. The controller 28C repeats the determination of step S24 until a signal including the first information (s) is received. The controller 28C proceeds to step S25 upon receiving the first information (s). In step S25, the controller 28C displays the second information (s) corresponding to the first information (s) on the display 28A, and then ends the process.

A process for transmitting a signal including the first information (s) and executed by the controller 64 from the controller 62 will now be made with reference to FIG 14th described. In a case where the controller 64 is supplied with electric power from the second battery 28E from the interface device 28, the controller 64 starts the process of the control device 62 and goes to step S31 of the flowchart shown in FIG 14th away. Upon completion of the flowchart shown in 14th the controller 64 repeats the process of step S31 in predetermined cycles until the electric power supply is stopped / ends.

In step S31, the controller 64 determines whether the interface device 28 requests the first information (s). In a case where there is no request for the first information (s), the controller 64 ends the process. In a case where there is a request for the first information (s), the controller 64 proceeds to step S32. In step S32, the controller 64 transmits a signal including the first information (s) to the interface device 28 and ends the process. For example, the controller 64 can control the transmit the first information (s) that were stored in the interface device 28 during the previous activation or transmit currently recognized first information (s) to the interface device 28. In a case where the first information includes information related to the condition of the battery unit 26, the controller 64 may receive information related to the condition of the battery unit 26 from the controller 28C of the battery unit 26 and transmit the received / received information / s to / to the interface device 28. In a case where the first information includes information related to the state of the battery unit 26, the controller 64 may store the information related to the battery unit 26 in the first state or the second state and transmit the stored information (s) to the interface device 28.

In a case where the control state from the electrical system 24 is the third state, the controller 28C uses the electrical power from the second battery 28E to acquire the second information corresponding to the first information / correspond to / on the display 28A. This enables the user to recognize the first information (s) even if the controller 64 is not supplied with electrical energy from the battery unit 26.

The communication unit 26C of the battery unit 26 and the communication unit 28D of the interface device 28 are configured to perform wireless communication. In this case, for example, in a case in which the controller 28C requests the first information (s) from the interface device 28, the controller 64 may transmit a signal from the control device 62 to the controller 26B of the battery unit 26, that the communication unit 26C instructs from the battery unit 26 to transmit a wireless signal including the first information (s) to the communication unit 28D from the interface device 28.

The battery unit 26 is preferably set up in such a way that the first battery 26A is charged by a charger 70. The charger 70 is connected to an external power supply 71, for example. The external power supply 71 can be a commercial power supply or a battery. The charger 70 includes, for example, a controller 70A and a communication unit 70B.

The controller 70A includes a processor that executes a predetermined control program. The processor includes, for example, a CPU or an MPU. The processor can be provided in a variety of separate locations. The controller 70A can include one or more microcomputers. Preferably, the controller 70A further includes memory. The memory stores different types of control programs and information / s used for different types of control programs. The memory includes, for example, a nonvolatile memory and a volatile memory. The non-volatile memory includes at least one of a ROM, an EPROM, an EEPROM, and a flash memory, for example. The non-volatile memory includes, for example, a RAM.

The controller 70A is configured to control the provision / supply of electrical energy from the external power supply 71 to / to the first battery 26A.

The controller 70A is preferably configured to control the current value of the electrical energy provided to / to the battery unit 26 to a predetermined current value. The predetermined current value is set in accordance with the type of the first battery 26A. Preferably, the predetermined current value is previously stored in a memory by the controller 26B of the battery unit 26. The controller 26B of the battery unit 26 is preferably set up to transfer information / s related to the type of the battery unit 26 or information / s including the predetermined current value via the communication unit 26C and the communication unit 70B to the controller 70A from the charger 70 transferred to. In a case where information related to the type of the battery unit 26 is received by the controller 26B from the battery unit 26, the controller 70A stores in its memory information showing the corresponding relation of the type of the first battery 26A and the predetermined current value.

The predetermined current value preferably includes a first current value and a second current value that is smaller than the first current value. Preferably, the controller 70A is configured to control the current value of the electrical energy provided to / to the battery unit 26 at one of the first current value and the second current value in accordance with the voltage from the battery unit 26. Preferably, the controller 70A is configured to control the current value of the electrical energy provided to / to the battery unit 26 at the first current value in a case where the voltage from the battery unit 26 is greater than or equal to a first voltage. Preferably the Controller 70A is configured to control the current value provided to / to the battery unit 26 from the electric power to the second current value in a case where the voltage from the battery unit is smaller than the first voltage. The first voltage is, for example, the maximum voltage of the battery voltage at which the state of charge of the battery can essentially be determined as 0%.

Preferably, the controller 70A is configured to terminate charging in a case where the current value of the electrical energy provided to / to the battery unit 26 becomes less than or equal to a predetermined third current value. The predetermined third current value is set in accordance with the type of the battery unit 26. Preferably, the third current value is previously stored in the memory by the controller 26B of the battery unit 26. In a case where information related to the type of the battery unit 26 is received by the controller 26B from the battery unit 26, the controller 70A stores in its memory information showing the corresponding relation of the type of the first battery 26A and the predetermined third current value. In a case where the current value of the electric power supplied to / to the battery unit 26 becomes smaller than or equal to the predetermined third current value, the controller 70A stops / terminates the supply of electric power to the battery unit 26.

Preferably, the controller 70A is configured to detect / sense / recognize the current value of the electrical energy provided to / to the battery unit 26 and to stop / end charging in a case in which a charging current value which is the current value of the / electrical energy provided to the battery unit 26 is less than or equal to a fourth current value. The fourth current value is smaller than the third current value. The fourth current value is smaller than the first current value. The fourth current value is 100 mA, for example. The controller stops / finishes charging in a case where the battery unit 26 is fully charged even if information related to the type from the battery unit 26 or information related to the fourth current value cannot be obtained from the battery unit 26 .

A charging process performed by the controller 70A of the charger 70 will now be described with reference to FIG 15th described. In a case where the charger 70 connects the external power supply 71 and the battery unit 26, the controller 70A starts the process and goes to step S41 of the flowchart shown in FIG 15th away. With the completion of the in 15th The controller 70A repeats the process from step S41 in predetermined cycles until the charger 70 is disconnected from the external power supply 71.

In step S41, the controller 70A determines whether the battery unit 26 is connected. In a case where the battery unit 26 is not connected, the controller 70A ends the process. In a case where the battery unit 26 is connected, the controller 70A proceeds to step S42. The controller 70A determines that the battery unit 26 is connected, for example, in a case where communication with the controller 26B of the battery unit 26 is established via the communication unit 70B.

In step S42, the controller 70A receives information related to charging the battery unit 26, and proceeds to step S43. The information related to charging includes, for example, the type of the battery unit 26. The type of the battery unit 26 may be the maximum capacity (Ah) of the first battery 26A or the type / model of the battery unit 26. The information / s related to the charging includes the first current value, the second current value and the third current value instead of the type of the battery unit 26. In a case where the information / s related to the charging the maximum capacity (Ah) of the first battery 26A or the model type / model of the battery unit 26 is / are, the memory of the controller 70A stores in advance information (s) related to the first current value, the second current value and the third current value that make up the maximum capacity (Ah) of the first battery or the model type / model of the battery unit 26 correspond. The charger 70 includes a first voltage detector that detects / detects / detects the voltage from the first battery 26A. The first voltage detector is connected to the controller 26B. The battery unit may include a second voltage detector that detects the voltage from the first battery 26A in order to transmit information related to the present voltage of the first battery 26A to the controller 26B. In step S43, the controller 70A determines whether the voltage from the battery unit 26 is greater than or equal to a first voltage. In a case where the voltage from the battery unit 26 is greater than or equal to the first voltage, controller 70A proceeds to step S44.

In step S44, the controller 70A supplies the battery unit 26 with electric power so that the current supplied to / to the first battery 26A is the first current value, and then proceeds to step S45. In step S45, the controller determines 70A, whether the charging current value becomes less than or equal to the third current value. The controller 70A repeats step S45 as long as the charging current value does not become smaller than or equal to the third current value. In a case where the charging current value becomes less than or equal to the third current value, the controller 70A proceeds to step S46. In step S46, the controller 70A stops charging and then ends the process.

In a case where the voltage from the battery unit 26 is not greater than or equal to the voltage in step S43, the controller 70A proceeds to step S47. In step S47, the controller 70A provides the battery unit with electric power to obtain the second current value, and then proceeds to step S48. Preferably, the controller 70A performs the determination of step S48 using the last voltage detected by the battery unit 26 by the first voltmeter or the last voltage obtained from the battery unit 26 from the battery unit 26. Preferably, the controller 70A may, in a case where it has the If the determination of step S48 is performed using the current voltage of the battery unit 26 from the battery unit 26, but cannot obtain the current voltage of the battery unit 26 from the battery unit 26, end the process.

The controller 70A is configured to provide electrical energy to / to the battery unit 26 in accordance with the first current value and can therefore adjust the first battery 26A in a manner suitable for the first battery 26A. In a case where the battery voltage level from the battery unit 26 is less than the first voltage, the controller 70A is configured to provide electrical energy to / to the battery unit 26 in accordance with the first current value. Therefore, in a case where the voltage from the battery unit 26 is low, the first battery 26A can be charged in a manner suitable for the first battery 26A. The controller 70A stops / stops supplying electric power to the battery unit 26 in accordance with the third current value. Therefore, the first battery 26A can be charged in a manner suitable for the first battery 26A. The controller 70A stops / stops supplying electric power to the battery unit 26 in accordance with the fourth current value. Therefore, after charging has started, charging can be stopped / terminated even in a case where information related to the fourth current value from the battery unit 26 and information related to the type from the first battery 26A cannot be obtained.

Modified Examples

The description related to the above embodiment illustrates, without intending to be limited thereto, applicable forms of a drive unit for the human powered vehicle and a human powered vehicle according to the present disclosure. The drive unit for the human powered vehicle and the human powered vehicle according to the present disclosure is applicable to, for example, modified examples of the above embodiment described below and combinations of at least two of the modified examples that do not contradict each other. In the modified examples described below, the same reference numbers are given for those components that are the same when the corresponding components of the above embodiment. Such components are not described in detail.

As in 16 shown, in a case where the contact portion 38 viewed in the axial direction of the input rotary shaft 36 , at least part of the contact portion 38 be arranged in a second area R2 in a state in which the drive unit 30th with the frame 12th connected is. The second area R2 is / will be between the seat tube 18th from the frame 12th and the down tube 16 from the frame 12th about the axis of rotation C1 from the input rotary shaft 36 Are defined.

The drive unit 30th can have a plurality of first connection points 34 include. In this case, at least a part of the contact portion 38 at least one of the first connection point 34 be arranged in the first region R1 as viewed in the axial direction of the input rotary shaft 36 in a state in which the drive unit 30th to / with the frame 12th is joined, and at least part of the contact portion 38 another from the first junction 34 may be arranged in the second area R2 as viewed in the axial direction of the input rotary shaft 36 in a state in which the drive unit 30th to / with the frame 12th is joined.

The first hole 40 must be the first female thread 40A not include. In this case, for example, an internal thread is formed by an inner peripheral portion defining the first through hole 22B of the bracket 22nd . The bolt 42A from the first connector 42 is in the first hole 40 inserted and with the inner portion of the bracket 22nd paired so that the first connection point 34 between the head 42B of the bolt 42A and the bracket 22nd is temporarily stored.

There is no restriction on the inside of the case 32 from the drive unit 30th provided structure. For example, the drive unit must 30th the engine 44 does not include and may include an internal gear or transmission device. The internal transmission device is / will be in a transmission path from the human driving force between the input rotary shaft 36 and the output portion 54 extending provided. The internal transmission device can include a planetary gear transmission or a continuously variable transmission.

The first connector 42 can instead of the bolt 42A a rivet included. In a case where the first connector 42 contains a rivet, the first becomes internal thread 40A left out. The second connector 50 may include a rivet in place of bolt 50A. In a case where the second connecting element 50 contains a rivet, the second internal thread 48A is omitted.

The charger 70 may receive state of charge information (SOC) from the battery unit 26 and terminate the charging process. The controller 26B of the battery unit 26 calculates the SOC information from, for example, voltage and charge-discharge information of the first battery 26A. In step S42 of 5 For example, the controller 70A may receive the SOC information from the controller 26B from the battery unit 26 from the charger 70. In a case where the SOC information indicates that the state of charge of the battery unit 26 is 100 percent, the controller 70A of the charger 70 does not perform charging and ends the process. In a case where the SOC information indicates that the state of charge of the battery unit 26 is less than 100 percent, the controller 70A of the charger 70 proceeds to step S43.

In this specification, the phrase “at least one of” as used in this disclosure means “one or more” of a desired selection. As an example, the phrase “at least one of” as used in this disclosure means “only one choice” or “both of two choices” in a case where the number of choices is two. In another example, the phrase “at least one of” as used in this disclosure means “only a single choice” or “any combination of two or more choices” when the number of choices is three or more.

List of reference symbols

(10)

muscle-powered vehicle

(12)

frame

(16)

Down tube

(18)

Seat tube

(20)

Chain stay

(22)

bracket

(30)

Drive unit

(32)

casing

(32A)

first section

(32B)

second part

(32C)

Connecting section

(34)

first connection point

(36)

Input rotary shaft

(38)

Contact section

(40)

first hole

(40A)

first internal thread

(42)

first connector

(42A)

bolt

(44)

engine

(46)

second connection point

(48)

second hole

(50)

second connecting element

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• JP 2019238823 [0001]
• JP 201724700 [0003]

Claims (18)

A drive unit (30) for a human powered vehicle, the drive unit (30) comprising: a housing (32) provided with an input rotary shaft (36) to which human driving force is applied; and a first connector (34) formed integrally with the housing (32) as a one-piece component adapted to be joined to a frame (12) of the human powered vehicle (10), the first connector (34) including a contact portion (38) configured to contact the frame (12) from above or in a direction parallel to a flat plane in a state in which the human powered vehicle (10) is placed on the flat plane and the drive unit (30 ) is / is joined to / with the frame (12), and a first hole (40) formed in the contact portion (38) configured to receive part of a first connector (42) that connects the first connector (34) to / to the frame (12 ) and extends in a first direction that is not parallel to the input rotary shaft (36). Drive unit (30) according to Claim 1 wherein at least the part of the contact portion (38) is in a first area defined between a seat tube (18) of the frame (12) and a chain stay (20) of the frame (12) about an axis of rotation of the input rotary shaft (36 ) is arranged in a view of the contact portion (38) shown in an axial direction from the input rotary shaft (36) in a state in which the drive unit (30) is joined to / with the frame (12). Drive unit (30) according to Claim 1 or 2 wherein at least the part of the contact portion (38) is in a second area defined between a seat tube (18) of the frame (12) and a down tube (16) of the frame (12) about an axis of rotation of the input rotary shaft (36 ) is arranged in a view of the contact portion (38) shown in an axial direction from the input rotary shaft (36) in a state in which the drive unit (30) is joined to / with the frame (12). Drive unit (30) for a muscle-powered vehicle (10), the drive unit (30) comprising: a housing (32) provided with an input rotary shaft (36) to which human driving force is applied; and a first joint (34) integrally formed with the housing (32) as a one-piece component and adapted to be joined to a frame (12) of the human powered vehicle (10), wherein includes the first connection point (34) a contact portion (38) configured to contact the frame (12) in a state in which the drive unit (30) is joined to the frame (12), and a first hole (40) formed in the contact portion (38) configured to receive part of a first connector (42) which connects the first connector (34) to / to the frame (12) couples and extends in a first direction that is non-parallel to the input rotary shaft (36), and at least a portion of the contact portion (38) in at least one of a first area defined between a seat tube (18) of the frame (12) and a chain stay (20) of the frame (12) about an axis of rotation of the input rotary shaft (36) ) and a second area defined between a seat tube (18) of the frame (12) and a down tube (16) of the frame (12) around the axis of rotation of the input rotary shaft (36) shown in a view of the contact portion (38) is arranged in an axial direction from the input rotary shaft (36) in a state in which the drive unit (30) is joined to / with the frame (12). Drive unit (30) according to one of the Claims 1 to 4th wherein the contact portion (38) is provided on a portion of the housing (32) except for both ends with respect to a front-rear direction of the frame (12) in a state attached to the frame (12) /becomes. A power unit (30) for a human powered vehicle (10), the power unit (30) comprising: a housing (32) provided with an input rotary shaft (36) to which human power is applied; and a first connector (34) formed integrally with the housing (32) as a one-piece component and adapted to be joined to a frame (12) of the human powered vehicle (10), the first connector (34) including a contact portion (38) configured to contact the frame (12) in a state in which the drive unit (30) is joined to / with the frame (12), and a first hole (40) formed in the contact portion (38), configured to receive the part of a first connector element (42) which couples the first connector (34) to / to / with the frame (12), and turns into a first (n) extends in a direction that is non-parallel to the input rotary shaft (36), and the contact portion (38) is provided on a portion of the housing (32) except for both ends with respect to a front-rear direction of the frame (12) in a state in which the drive unit (30) is attached to the / is joined to the frame (12). Drive unit (30) according to one of the Claims 1 to 6th , further comprising at least one second connection point (46) formed integrally with the housing (32) as a one-piece component, adapted to be joined to the frame (12) and provided at a position extending from the differs from the first connection point (34), wherein the at least one second connection point (46) includes a second hole (48) which is configured to receive part of a second connection element (50) which the second connection point (46 ) couples to the frame (12) and extends in a second direction that is parallel to the input rotary shaft (36). Drive unit (30) according to Claim 7 wherein the at least one second connection point (46) includes a plurality of second connection points (46), and the second connection points (46) are provided at different positions around the input rotary shaft (36). Drive unit (30) according to Claim 8 wherein the input rotary shaft (36) is disposed in a region surrounded by the second connection points (46) and the contact portion (38) as viewed in an axial direction from the input rotary shaft (36). Drive unit (30) according to one of the Claims 1 to 9 wherein the first direction is substantially orthogonal to an axial direction of the input rotary shaft (36). Drive unit (30) according to one of the Claims 1 to 10 wherein the first direction is inclined relative to a front-rear direction of the frame (12), shown in a view in an axial direction of the input rotary shaft (36), in a state in which the drive unit (30) is attached to the / with the frame (12) is joined. Drive unit (30) according to one of the Claims 1 to 11 wherein at least the part of the contact portion (38) is arranged in a central portion of the housing (32) with respect to an axial direction of the input rotary shaft (36) in a state in which the drive unit (30) is attached to the / is joined to the frame (12). Drive unit (30) according to one of the Claims 1 to 12th , further comprising a motor (44) which applies propulsive force to the human powered vehicle (10) and is provided on the housing (32). Drive unit (30) according to Claim 13 wherein the housing (32) includes a first portion (32A) supporting the motor (44) and a second portion (32B) supporting the input rotary shaft (36) and at least the part of the first joint ( 34) is provided at a connecting portion (32C) connecting the first portion (32A) and the second portion (32B). Drive unit (30) according to one of the Claims 1 to 14th wherein at least the part of the first joint (34) is located toward a rear side of the human powered vehicle (10) from the input rotary shaft (36) in a state in which the drive unit (30) is attached to the frame (12) is joined. Drive unit (30) according to one of the Claims 1 to 15th wherein the first hole (40) is defined by a first internal thread (40A), and the first connecting element (42) includes a bolt (42A). A human powered vehicle (10) comprising: the power unit (30) for a human powered vehicle (10) according to any one of the Claims 1 to 16 ; and a frame (12) of the human powered vehicle (10). Muscle-powered vehicle (10) according to Claim 17 wherein the frame (12) includes a down tube (16), a seat tube (18), a chain stay (20), and a bracket (22) connected to the down tube (16), the seat tube (18) and the chain stay (20) ), wherein the contact portion (38) touches the holder (22).

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