DE102022213322A1 - COMPONENT FOR A HUMAN-POWERED VEHICLE - Google Patents

Abstract

A component 50 for a human-powered vehicle 10 comprises a housing 52 with an interior IS and a first communication unit 54, which is at least partially arranged in an interior IS and the housing 52 and is designed in such a way that at least one of the transmission of a wireless signal to outside of housing 52 and reception of the wireless signal from outside of housing 52 . The housing 52 includes a first portion 80 and a second portion 82 that is smaller than the first portion 80 and has a higher transmission with respect to the wireless signal than the first portion 80.

Description

The present invention relates to a component for a human-powered vehicle.

An example of a component for a human-powered vehicle is in JP 2019 - 93 904 A described. The component is connected to an external device in such a way that wireless communication is possible.

An object of the present invention is to provide a component for a human-powered vehicle that preferably performs wireless communication.

A component according to a first aspect of the present invention is for a human-powered vehicle. The component includes a housing having an interior and a first communication unit at least partially disposed in at least one of an interior and the housing and configured to perform at least one of transmitting a wireless signal to the exterior of the housing and receiving the wireless signal performed from outside the housing. The housing includes a first portion and a second portion that is smaller than the first portion and has a higher wireless signal transmittance than the first portion.

In the device according to the first aspect, the second portion of the housing has a higher wireless signal transmittance than the first portion of the housing. Accordingly, the first communication unit, which is at least partially arranged in at least one of the interior and the housing, performs wireless communication via the second section.

According to a second aspect of the present invention, the component according to the first aspect is configured such that the second portion is formed of a material different from that of the first portion. In the device according to the second aspect, the second section is formed of a material that has a higher transmission with respect to the wireless signal than the first section.

According to a third aspect of the present invention, the component according to the second aspect is designed in such a way that the second section comprises a plastic material. In the component according to the third aspect, the second portion is formed from a plastic material.

According to a fourth aspect of the present invention, the component according to the second or third aspect is designed in such a way that the first section comprises a metallic material. In the component according to the fourth aspect, the first portion is formed of a metallic material. As a result, the housing is rigid.

According to a fifth aspect of the present invention, the device according to any one of the second to fourth aspects is configured such that the first portion has an opening, and at least a part of the first communication unit is provided in the opening. In the device according to the fifth aspect, at least a part of the first communication unit is provided in the opening. Thereby, at least a part of the first communication unit is arranged at a position close to the outside of the housing. This enables the first communication unit to perform wireless communication in a preferred manner.

According to a sixth aspect of the present invention, the component according to any one of the first to fifth aspects is configured such that the first communication unit has a first antenna and at least a part of the first antenna is embedded in the second section. In the device according to the sixth aspect, at least a part of the first antenna is embedded in the second portion. As a result, the housing is designed in a preferred manner.

According to a seventh aspect of the present invention, the device according to the sixth aspect further includes a circuit board disposed indoors, and an electric wire connecting the first communication unit and the circuit board. At least a portion of the electrical cable is embedded in the second section. In the component according to the seventh aspect, at least part of the electric wire is embedded in the second portion. As a result, at least part of the electrical cable is arranged in the second section.

According to an eighth aspect of the present invention, the device according to any one of the first to fifth aspects is configured such that the first communication unit has a first antenna and at least a part of the first antenna is arranged in the interior area facing the second portion. In the component according to the eighth aspect, at least a part of the first antenna is arranged in the inner area facing the second portion. This reduces the attenuation of the radio waves of the wireless signal between the second section and at least part of the first antenna. In this way, the wireless communication is performed in a preferable manner.

According to a ninth aspect of the present invention, the component according to any one of the first to eighth aspects is configured such that the housing has a protrusion protruding outward from the housing, and the second portion is provided on the protrusion. In the component according to the ninth aspect, the second portion is provided on the protrusion protruding from the case to an outside. As a result, at least part of the first communication unit is arranged in the projection. As a result, an impairment of the first communication unit by parts arranged in the interior area is limited.

According to a tenth aspect of the present invention, the component according to any one of the first to eighth aspects is configured such that the housing has a recess in a peripheral portion of the housing and the second portion is provided in the recess. In the component according to the tenth aspect, the second portion is provided in the recess located in the peripheral portion of the case. As a result, at least part of the first communication unit can be arranged in the recess. This limits interference between the first communication unit and indoor parts.

According to an eleventh aspect of the present invention, the member according to any one of the first to tenth aspects is configured such that the case has a fixing portion configured to be fixed to a frame of the human-powered vehicle and the first portion is integral is formed with the attachment portion. In the component according to the eleventh aspect, the first portion is formed integrally with the attachment portion. Thereby, the second portion can be provided at a portion other than the attachment portion.

According to a twelfth aspect of the present invention, the component according to any one of the first to eleventh aspects comprises at least one of a transmission, an electric brake, an electric suspension, an electrically adjustable seat post and a drive unit which includes a motor which is designed such that it exerts a propulsive force on the human-powered vehicle. In the device according to the twelfth aspect, the wireless communication is preferably performed in at least one of the transmission, the electric brake, the electric suspension, the electric seat post, and the power unit.

According to a thirteenth aspect of the present invention, the component according to the twelfth aspect includes the drive unit. A crank axle is rotatably supported in the housing such that two ends of the crank axle protrude from the housing in an axial direction of the crank axle, respectively. The housing has a side wall extending in a direction intersecting the axial direction. The second section is provided in the side wall. In the component according to the twelfth aspect, the second portion is provided in the side wall. This enables the first communication unit to carry out wireless communication in a preferred manner.

The component for a human-powered vehicle according to the present invention preferably performs wireless communication.

• 1 ist eine Seitenansicht eines menschlich angetriebenen Fahrzeugs mit einem Bauteil gemäß einer ersten Ausführungsform;
• 2 ist ein Blockdiagramm, das die elektrische Konfiguration des menschlich angetriebenen Fahrzeugs einschließlich des in 1 dargestellten Bauteils veranschaulicht;
• 3 ist eine perspektivische Ansicht der in 1 dargestellten Antriebseinheit;
• 4 ist eine Querschnittsansicht entlang der Linie D4-D4 in 3;
• 5 ist eine schematische Darstellung, die einen ersten Teil eines in 3 dargestellten Gehäuses, einen zweiten Teil des Gehäuses, eine Leiterplatte und eine erste Kommunikationseinheit zeigt;
• 6 ist eine schematische Darstellung, die den ersten Teil des Gehäuses, den zweiten Teil des Gehäuses, die Leiterplatte und die erste Kommunikationseinheit in einem ersten modifizierten Beispiel zeigt;
• 7 ist eine schematische Darstellung, die den ersten Teil des Gehäuses, den zweiten Teil des Gehäuses, die Leiterplatte und die erste Kommunikationseinheit in einem zweiten modifizierten Beispiel zeigt; und
• 8 ist eine schematische Darstellung, die den ersten Teil des Gehäuses, den zweiten Teil des Gehäuses, die Leiterplatte und die erste Kommunikationseinheit in einem dritten modifizierten Beispiel zeigt.

A more complete understanding of the invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description in connection with the accompanying drawings, wherein

• 1 13 is a side view of a human-powered vehicle including a component according to a first embodiment;
• 2 FIG. 14 is a block diagram showing the electrical configuration of the human-powered vehicle including the FIG 1 illustrated component illustrated;
• 3 is a perspective view of FIG 1 illustrated drive unit;
• 4 is a cross-sectional view taken along the line D4-D4 in 3 ;
• 5 is a schematic representation showing a first part of an in 3 illustrated housing, a second part of the housing, a printed circuit board and a first communication unit;
• 6 Fig. 12 is a schematic diagram showing the first part of the housing, the second part of the housing, the circuit board, and the first communication unit in a first modified example;
• 7 Fig. 12 is a schematic diagram showing the first part of the housing, the second part of the housing, the circuit board and the first communication unit in a second modified example; and
• 8th Figure 12 is a schematic diagram showing the first part of the housing, the second part of the housing, the circuit board and the first Communication unit in a third modified example shows.

Referring to the 1 until 5 A component 50 for a human-powered vehicle will now be described. The human-powered vehicle is a vehicle that has at least one wheel and is driven by at least one human driving force. Human-powered vehicles include, for example, various types of bicycles such as mountain bikes, racing bikes, city bikes, cargo bikes, hand bikes and recumbent bikes. The number of wheels of the human-powered vehicle is not limited. The human-powered vehicle includes, for example, a unicycle and vehicles having two or more wheels. The human-powered vehicle is not limited to a vehicle powered only by human driving force. The human-powered vehicle also includes an e-bike that uses not only human driving power but also the driving power of an electric motor for propulsion. An e-bike includes an electrically assisted bicycle that uses an electric motor to assist in propulsion. In the following description, the human-powered vehicle refers to an electric-assist bicycle.

A human-powered vehicle 10 includes at least one wheel 12 and a vehicle body 14. The at least one wheel 12 includes a front wheel 12F and a rear wheel 12R. The vehicle body 14 includes a frame 16. The human-powered vehicle 10 further includes a crank 18 to which the human driving force acts. Crank 18 includes a crank axle 20 rotatable relative to frame 16 and crank arms 22A and 22B. The crank arms 22A and 22B are provided at the ends of the crank axle 20 in an X axial direction. Pedals 24A and 24B are coupled to crank arms 22A and 22B, respectively.

A front fork 26 is connected to the frame 16 . The front wheel 12F is connected to the front fork 26 . A handle 28 is connected to the front fork 26 via a stem 30 . The frame 16 supports the rear wheel 12R. In the present embodiment, the crank 18 is connected to the rear wheel 12R via a drive mechanism 32 . The rotation of the crank axle 20 drives the rear wheel 12R. At least one of the front wheel 12F and the rear wheel 12R may be connected to the crank 18 via the drive mechanism 32 .

The drive mechanism 32 includes a first rotating body 34 coupled to the crank axle 20 . The first rotating body 34 includes a front sprocket. The first rotating body 34 may include a pulley or a bevel gear. The crank axle 20 may be coupled to the front sprocket via a one-way clutch.

The drive mechanism 32 further includes a second rotary body 36 and a link 38. The link 38 is configured to transmit the rotational force of the first rotary body 34 to the second rotary body 36. As shown in FIG. The link 38 comprises a chain. The link 38 may also comprise a belt or a shaft. The second rotating body 36 includes a rear sprocket. The second rotating body 36 may include a pulley or a bevel gear. In one example, the chain is wrapped around the front and rear sprockets. In one example, the second rotating body 36 is connected to the rear wheel 12R. The rear wheel 12R is configured to be rotated by the rotation of the second rotating body 36 .

The human-powered vehicle 10 includes a component 50. The component 50 may include, for example, a power unit 50A, a transmission 50B, an electric brake 50C, an electric suspension 50D, and an electric seat post 50E. In one example, the human-powered vehicle 10 includes an actuator configured to actuate at least one of the power unit 50A, the transmission 50B, the electric brake 50C, the electric suspension 50D, and the power seat post 50E.

The transmission 50</b>B is configured to shift a gear ratio R and is provided in a human driving force transmission path in the human-powered vehicle 10 . Transmission 50B includes multiple shift speeds. Each gear stage corresponds to a different transmission ratio R. The number of gear stages is three to thirty, for example.

The gear ratio R is the ratio between the rotational speed W of the drive wheel and the rotational speed C of the crank axle 20. In the present embodiment, the drive wheel is the rear wheel 12R. The rotational speed W of the drive wheel and the rotational speed C of the crank shaft 20 may each be the number of revolutions per unit time. The rotational speed Wdes drive wheel can be determined by the number of teeth of the first rotating body 34 and the rotational speed C of the crank axle 20 by the number of teeth of the second rotating body 36 are replaced. The relationship among the gear ratio R, the rotational speed W of the drive wheel, and the rotational speed C of the crank axle 20 is expressed by Equation 1. $$\text{R}=\text{W}/\text{C}$$

In one example, the transmission 50B includes at least one internal hub transmission, a front derailleur, and a rear derailleur. In a case where the transmission 50B includes an internal gear hub, the internal gear hub is provided in the hub of the rear wheel 12R, for example. The internal hub gear can include a continuously variable transmission (CVT).

When the gear 50B is a front derailleur, the gear 50B is provided on the first rotating body 34 . For example, in a case where the transmission 50B includes a front derailleur, the first rotating body 34 includes a plurality of front sprockets. In a case where the transmission 50B includes a rear derailleur, the transmission 50B is provided on the second rotary body 36 . In a case where the transmission 50B includes a rear derailleur, the second rotary body 36 includes a plurality of rear sprockets. The transmission 50B includes an electric transmission configured to be operated by an actuator. The actuator includes an electrical actuator. The actuating element comprises, for example, an electric motor.

In one example, electric brake 50C is attached to frame 16 and front fork 26 and configured to brake wheel 12 . The electric brake 50C can be a disc brake, a rim brake, or a roller brake.

In one example, the electrical suspension 50D includes at least a rear suspension and a front suspension. In one example, electrical suspension 50D absorbs shock applied to wheel 12 . The electric suspension 50D may be a hydraulic suspension or an air suspension.

The electrical suspension 50D includes a first suspension part 50F and a second suspension part 50G attached to the first suspension part 50F and movable relative to the first suspension part 50F. The electric suspension 50D is operated in states including a locked state and an unlocked state.

For example, in a case where the operating state of the electric suspension 50D is the locked state, the relative movement of the first suspension part 50F and the second suspension part 50G is restricted. The locked state of the electric suspension 50D includes, for example, a state in which the first suspension part 50F and the second suspension part 50G move slightly relative to each other in a case where a strong force is applied to the wheel 12 . For example, in a case where the operating state of the electric suspension 50D is the unlocking state, relative movement of the first suspension part 50F and the second suspension part 50G is allowed. In addition to or instead of the locked state and the unlocked state, the operating state of the electric suspension 50D may include at least one of plural operating states that differ in damping force and plural operating states that differ in stroke amount.

The electric suspension 50D includes an electric actuator that operates the electric suspension 50D. The electrical actuator includes an electric motor. Instead of an electric motor, the electric actuating element can also comprise an electromagnet. The electric actuator switches the operating state of the electric suspension 50D, for example.

In a case where the electric suspension 50D includes a rear suspension, the rear suspension is attached to the frame 16 of the human-powered vehicle 10, for example. In a case where the electric suspension 50D includes a rear suspension, for example, the rear suspension is provided on the frame 16 between the frame body and a swingarm that supports the rear wheel 12R. The rear suspension absorbs shock applied to the rear wheel 12R.

For example, in a case where the electric suspension 50D includes a front suspension, the front suspension is configured to be interposed between the frame 16 and the front wheel 12F. When the electric suspension 50D includes a front suspension, the front suspension is provided on the front fork 26, for example. The front suspension absorbs shock applied to the front wheel 12F.

In one example, the power seat post 50E includes a power actuator. The electrical actuator includes an electric motor. Instead of an electric motors, the electric actuator can also include an electromagnet. For example, the power seat post 50E is attached to a seat tube. The power seat post 50E is designed to change the seat height, for example.

In one example, the power seat post 50E includes a power seat post or a mechanical seat post. For example, the electric seat post lengthens and shortens a seat post with the power of an electric actuator. For example, the mechanical seat post controls a valve with the force of an electric actuator to extend the seat post with at least one of spring force and pneumatic force. Human power is used to shorten the seat post. The mechanical seat post includes a hydraulic seat post or a hydraulic and pneumatic seat post.

In one example, the human-powered vehicle 10 further includes a battery 40. The battery 40 includes one or more battery elements. Battery elements include rechargeable batteries. In one example, battery 40 is configured to provide electrical energy to component 50 . The battery 40 is connected to the component 50 via an electrical cable or a wireless communication device so that communication is possible. The battery 40 is configured to establish communication with the device 50 via power line communication (PLC), controller area network (CAN), or universal asynchronous receiver/transmitter (UART).

The human-powered vehicle component 50 includes a housing 52 and a first communication unit 54. In the present embodiment, the human-powered vehicle component 50 includes the drive unit 50A. The drive unit 50A includes a motor 56 configured to apply a propulsive force to the human-powered vehicle 10 . Motor 56 includes, for example, one or more electric motors. The electric motor is, for example, a brushless motor. When the motor 56 is rotated in a first motor rotation direction, the motor 56 outputs a motor driving force to apply a driving force to the human-powered vehicle 10 . The motor 56 increases the output motor driving force as the input electric power increases.

In one example, housing 52 includes a first housing 52A and a second housing 52B. The first housing 52A and the second housing 52B are connected to each other by screws or the like, for example. In one example, housing 52 includes an interior IS. In one example, the first housing 52A and the second housing 52B form the interior IS. In one example, the engine 56 is located in the interior IS.

In one example, the drive unit 50A further includes the crank axle 20. In one example, the housing 52 rotatably supports the crank axle 20 such that two ends 20A and 20B of the crank axle 20 in the axial direction X of the crank axle 20 protrude from the housing 52, respectively. In one example, the housing 52 includes a sidewall 58 that extends in a direction that intersects the axial X direction. In one example, sidewall 58 includes a first sidewall 58A and a second sidewall 58B. In one example, the housing 52 further includes a peripheral wall 58C extending in the axial direction X of the crank axle 20 and connecting the first side wall 58A and the second side wall 58B.

In one example, the housing 52 includes an attachment portion 60 configured to attach to the frame 16 of the human-powered vehicle 10 . In one example, the attachment portion 60 is provided on the peripheral wall 58C. In one example, the housing 52 includes a plurality of attachment portions 60. In one example, the attachment portion 60 is provided on the peripheral wall 58C so as to protrude in the radial direction of the crank axle 20. As shown in FIG. In one example, the attachment portion 60 includes at least one bore or internal thread. In one example, a screw engages at least one of the bore and internal threads of attachment portion 60 to attach housing 52 to frame 16 .

In one example, the drive unit 50A includes an output portion 62 . In one example, the output portion 62 is coupled to the crank axle 20 so that it rotates in unison with the crank axle 20 . In one example, the output portion 62 and the crank axle 20 may be connected by a one-way clutch. In one example, the output portion 62 is coaxial with the crank axle 20 and is disposed on the crank axle 20 to extend around the outer circumference of the crank axle 20 .

In one example, the power unit 50A further includes a speed reducer 64. In one example, the speed reducer 64 is between the Motor 56 and the output section 62 are provided. In one example, the speed reducer 64 is configured such that the rotational speed of the output section is reduced by one or more stages from the rotational speed of the input section, which receives the motive power of the motor 56 . The speed reducer 64 is formed by a plurality of gears.

In one example, the power unit 50A includes a one-way clutch 66 . In one example, the one-way clutch 66 is disposed between the speed reducer 64 and the output portion 62 . In one example, the one-way clutch 66 includes a roller clutch. In one example, the one-way clutch 66 includes an inner race, an outer race, and rollers. In one example, the rollers are located between the inner ring and the outer ring. The one-way clutch 66 may be a ratchet clutch or a sprag clutch.

In a case where the motor 56 generates rotation, the one-way clutch 66 transmits the rotation of the motor 56 to the output section 62. In a case where the crank axle 20 is rotated, the one-way clutch 66 allows relative rotation of the crank axle 20 and of the speed reducer 64. In one example, the one-way clutch 66 transfers the driving force of the motor 56 to the output section 62. In one example, the one-way clutch 66 does not allow the human driving force acting on the crank axle 20 to be transferred to the motor 56.

In one example, the power unit 50A includes a first controller 68. The first controller 68 includes a processor that executes predetermined control programs. The processor of the first controller 68 includes, for example, a central processing unit (CPU) or a microprocessor unit (MPU). The processor of the first controller 68 can be located in various locations. The first controller 68 may include one or more microcomputers. The first controller 68 is connected to the battery 40 in a manner that enables wired or wireless communication and is configured to be powered by the battery 40 with electrical power.

In one example, the drive unit 50A further includes a first memory 70. The first memory 70 stores control programs and information used for control processes. The first memory 70 includes, for example, a non-volatile memory and a volatile memory. The non-volatile memory comprises, 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) or a flash memory. The volatile memory includes, for example, random access memory (RAM).

In one example, the drive unit 50A further includes a human driving force transducer 72. The human driving force transducer 72 is configured to output a signal representative of torque applied to the crank axle 20. As shown in FIG. The signal corresponding to the torque applied to the crank axle 20 by the human driving force includes information related to the human driving force input to the human-powered vehicle 10 .

In one example, the human driving force transducer 72 is provided in the transmission path or near an element involved in the transmission path. The member included in the transmission path includes, for example, the crank axle 20 and a member that transmits the human driving force between the crank axle 20 and the first rotating body 34 . The human driving force transducer 72 is disposed between the one-way clutch 66 and the crank axle 20, for example.

The human driving force sensor 72 includes a strain sensor, a magnetostrictive sensor, or a pressure sensor. The strain sensor includes a strain gauge. The human driving force sensor 72 may have any configuration as long as human driving force information can be obtained.

The human driving force sensor 72 need not be provided in the driving unit 50A. In a case where the human driving force sensor 72 is not provided in the power unit 50A, the human driving force sensor 72 may be provided on the crank arms 22A and 22B or the pedals 24A and 24B. For example, in a case where the human driving force sensor 72 is provided on the pedals 24A and 24B, the human driving force sensor 72 may include a sensor that detects the pressure applied to the pedals 24A and 24B. For example, in a case where the human driving force sensor 72 is provided on the chain, the human driving force sensor 72 may include a sensor that detects the tension of the chain.

In one example, the drive unit 50A further includes a crank rotation speed sensor 74 . The sensor 74 for the rotational speed of the crank is so constructed det that it acquires information corresponding to the rotational speed C of the crank axle 20. The information related to the rotational speed C of the crank axle 20 includes the angular acceleration of the crank axle 20. The acceleration of the human-powered vehicle 10 is, for example, the angular acceleration of the crank axle 20.

In one example, the crank rotation speed sensor 74 includes a magnetic sensor that outputs a signal representative of the strength of a magnetic field. The magnetic sensor includes a ring magnet whose magnetic field varies in the circumferential direction. The ring magnet whose magnetic field strength varies in the circumferential direction is provided on the crank shaft 20, a member rotated together with the crank shaft 20, or in the transmission line extending from the crank shaft 20 to the first rotary body 34.

In one example, the crank rotational speed sensor 74 outputs a signal corresponding to the rotational speed C of the crank axle 20 . The magnet may be attached to a member that rotates together with the crank axle 20 in a human driving force transmission path from the crank axle 20 to the first rotating body 34 . Instead of the magnetic sensor, the crank rotation speed sensor 74 may include an optical sensor, an acceleration sensor, a gyro sensor, a torque sensor, or the like.

In one example, the crank rotation speed sensor 74 is configured to output a predetermined number of detection signals during a period in which the crank axle 20 makes a single revolution. The predetermined number is, for example, two or more. Preferably, the predetermined number is four or more. Preferably, the predetermined number is a multiple of four. Preferably, the predetermined number is eight, twelve, or sixteen.

The crank rotation speed sensor 74 need not necessarily be provided on the drive unit 50A. In a case where the crank rotation speed detector 74 is not provided on the power unit 50A, the crank rotation speed detector 74 is provided on the frame 16 of the human-powered vehicle 10, for example. In a case where the crank rotation speed detector 74 is not provided on the power unit 50A, the crank rotation speed detector 74 may include a vehicle speed sensor. In a case where the crank rotational speed sensor 74 includes a vehicle speed sensor, the first controller 68 is configured to calculate, for example, the rotational speed C of the crank axle 20 from the vehicle speed detected by the vehicle speed sensor and the gear ratio R.

In an example in which the component 50 comprises the drive unit 50A, the first controller 68 is configured to control the motor 56 . In one example, the first controller 68 includes a drive circuit. The drive circuit is electrically connected to the motor 56 . The drive circuit controls the electric power supplied to the motor 56 from the battery 40 . The drive circuit includes an inverter circuit. The inverter circuit includes transistors. In an example, the inverter circuit comprises inverter units connected in parallel, each inverter unit comprising two transistors connected in series. The inverter circuit may include an electric current sensor that detects electric current flowing through the inverter circuit. In one example, the current sensor is coupled to the first controller 68 for wired or wireless communication.

In one example, the first controller 68 is configured to control the motor 56 depending on the condition of the human-powered vehicle 10 . In one example, the first controller 68 is configured to control the motor 56 to change the driving force according to the human driving force input to the human-powered vehicle 10 . In one example, the first controller 68 is configured to control the motor 56 according to the human driving force detected by the human driving force detector 72 . In one example, the first controller 68 is configured to control the motor 56 in response to the rotational speed C of the crank axle 20 sensed by the crank rotational speed sensor 74 . In one example, the first controller 68 may be configured to control the motor 56 according to information transmitted from outside of the power unit 50A. The information transmitted from the outside of the power unit 50A includes at least one of vehicle speeds of the human-powered vehicle 10 and an operation signal of the operating device.

The first communication unit 54 is designed in such a way that it transmits at least one of the following transmission of a wireless signal to the outside of the housing 52 and reception of a wireless signal from the outside of the housing 52 . For example, the first communication unit 54 is configured to perform at least one of transmitting a wireless signal to the outside of the case 52 and receiving a wireless signal from the outside of the case 52 . In one example, the first communication unit 54 is configured to enable communication under a Bluetooth®, Wi-Fi®, ZigBee®, ANT®, ANT+®, radio frequency identification (RFID), public wireless 3G communication, public 4G wireless communication and 5G public wireless communication. The first communication unit 54 is configured to perform communication under a communication protocol that is compliant with at least one of the following protocols: Bluetooth®, Wi-Fi®, ZigBee®, ANT®, ANT+®, radio frequency identification (RFID), public wireless 3G communications, 4G public wireless communications and 5G public wireless communications. The first communication unit 54 can be configured to communicate under a specific communication protocol.

In one example, the first communication unit 54 includes a first antenna 54A. In one example, the first antenna 54A is configured to receive a wireless signal from an external device 42 . In one example, the first antenna 54A is configured to transmit a wireless signal to the external device 42 . The external device 42 includes, for example, at least one of a cycle computer, a smartphone, or a tablet-type computer. The external device 42 may include the actuator. In one example, the actuator is configured to output a wireless signal that switches assist modes. In a case where the component 50 includes the power unit 50A, the external device 42 may include at least one of the transmission 50B, the electric brake 50C, the electric suspension 50D, and the electric seat post 50E.

In one example, the external device 42 includes a second controller 44. The second controller 44 includes a processor that executes predetermined control programs. The processor of the second controller 44 includes, for example, a CPU or an MPU. The processor of the second controller 44 can be located in various locations. The second controller 44 may include one or more microcomputers. In a case where the external device 42 includes the operating device, the second controller 44 is connected to the battery 40 in a manner that enables wired or wireless communication and configured to be supplied with electric power from the battery 40 becomes.

In one example, the external device 42 further includes a second memory 46. The second memory 46 stores control programs and information used for control processes. The memory 46 includes, for example, non-volatile memory and volatile memory. The non-volatile memory includes, for example, at least one ROM, one EPROM, one EEPROM or one flash memory. The volatile memory includes RAM, for example.

The external device 42 further includes a second communication unit 48. The second communication unit 48 is configured to perform at least one of transmitting a wireless signal to outside of the external device 42 and receiving a wireless signal from outside of the external device 42. In one example, the second communication unit 48 is configured to perform at least one of transmitting a wireless signal outside of the external device 42 and receiving a wireless signal outside of the external device 42 . The second communication unit 48 includes a second antenna 48A. The second antenna 48A is configured to receive a wireless signal from the first communication unit 54 . In one example, the second antenna 48A is configured to transmit a wireless signal to the first communication unit 54 .

In one example, the first communication unit 54 includes a position information tracker. The position information tracker includes, for example, a Global Positioning System (GPS) tracker. In a case where the first communication unit 54 includes a GPS tracker, the first communication unit 54 further includes a GPS receiver and a public wireless communication device. The GPS receiver determines the current position of the human-powered vehicle 10. In one example, the public wireless communication device is configured to communicate with an external device via at least one of public wireless 3G communication, public wireless 4G communication, and of public wireless 5G communications. The public wireless communication device may include the first antenna 54A.

In a case where the first communication unit 54 includes a position information tracker, the first communication unit 54 is configured to track the position information of the first communication unit 54 to the external device 42 transmits. In a case where the first communication unit 54 includes a position information tracker, the first controller 68 may be configured to transmit, for example, the position information of the first communication unit 54 to the external device 42 in response to a wireless signal received from the external device 42 transmits signal. As an example, in a case where the human-powered vehicle 10 is stolen, the human-powered vehicle 10 can be found with the position information tracker and the external device 42 .

The first communication unit 54 is at least partially arranged in at least one of the interior IS and the wall of the housing 52 . In one example, the wall of housing 52 is the portion of housing 52 between an outer wall surface 52C and an inner wall surface 52D. Outer wall surface 52C comprises the outer surface of housing 52. Inner wall surface 52D comprises the inner surface of housing 52 which defines interior region IS.

In one example, the component 50 further includes a printed circuit board 76. In one example, the printed circuit board 76 is arranged in the interior IS. In one example, at least a portion of first controller 68 is provided on circuit board 76 . In one example, at least a portion of first memory 70 is provided on circuit board 76 .

In one example, component 50 includes circuit board 76 and an electrical cable 78 connecting first communication unit 54 and circuit board 76 . In one example, the first communication unit 54 is connected to the first controller 68 via the electrical cable 78 and the circuit board 76 .

The housing 52 includes a first portion 80 and a second portion 82. The second portion 82 is smaller than the first portion 80 and has a higher transmission of a wireless signal than the first portion 80. In one example, the second portion 82 smaller than the first portion 80. The attenuation of radio waves is limited in a case where the radio waves of a wireless signal penetrate a material having a high transmittance with respect to the wireless signal. In one example, the second portion 82 is provided in the housing 52 extending from the outer wall surface 52C to the inner wall surface 52D. In one example, a portion of outer wall surface 52C and a portion of inner wall surface 52D are formed by second portion 82 .

In one example, the second portion 82 is smaller than the first portion 80. This limits the impact of a disturbance on an electronic device located in the interior IS of the component 50. FIG. In one example, the electronic device located in the interior IS includes at least one of the motor 56, the human driving force transducer 72, the crank rotation speed transducer 74, the circuit board 76, the first controller 68, and the first memory 70.

In one example, the second portion 82 is formed from a material that is different than the first portion 80 . In one example, the first section 80 comprises a metallic material. In one example, the first section 80 comprises at least one of an aluminum alloy and a magnesium alloy. In one example, the first portion 80 need not be formed of a metallic material as long as the second portion 82 has a higher transmittance of a wireless signal than the first portion 80 and is formed of a material different from that of the first portion 80 differs. In one example, the second portion 82 comprises a plastic material. In one example, the second portion 82 includes a thermoset resin, such as a polyester resin or an epoxy resin. In one example, the second portion 82 need not be formed of a plastic material as long as the second portion 82 has a higher transmission of a wireless signal than the first portion 80 and is formed of a material different from that of the first portion 80 differs.

In one example, the first portion 80 is integrally formed with the attachment portion 60 . In one example, the second section 82 is provided in the sidewall 58 . In one example, the second portion 82 is provided in the second sidewall 58B. The second section 82 may be provided in the first side wall 58A or in the peripheral wall 58C. In one example, the first portion 80 includes the entirety of the housing 52 except for the second portion 82. In one example, the second portion 82 is the same size as the first communication unit 54 or the first antenna 54A.

In one example, the first portion 80 includes an opening 84 . In one example, at least a portion of the first communication unit 54 is provided in the opening 84 . In one example, opening 84 is a through opening extending from outer wall surface 52C to inner wall surface 52D. In one example, opening 84 is provided in sidewall 58 . In one example, opening 84 is provided in second sidewall 58B hen. In one example, the second portion 82 is provided in the opening 84 .

In one example, the first section 80 is formed separately from the second section 82 . In one example, the second portion 82, which is formed separately from the first portion 80, is fitted into the opening 84 and secured to the opening 84 with an adhesive or the like. In an example where the second section 82 is fitted into the opening 84 and secured to the opening 84 with an adhesive, the second section 82 is substantially the same size as the opening 84. The second section 82 can be inserted into the opening 84 to be pressed in. The first section 80 and the second section 82 can be formed by injection molding. The second section 82 may be larger than the opening 84 and secured to the outer wall surface 52C or the inner wall surface 52D of the first section 80 with a screw or the like to cover the opening 84 .

In one example, the first communication unit 54 is located entirely in the interior IS. The first communication unit 54 may be provided on the circuit board 76 or may be located at a position separate from the circuit board 76 in the interior IS. The first communication unit 54 may be provided, for example, on the inner wall surface 52D of the case 52 in a case where it is disposed at a position separated from the circuit board 76 in the interior IS. For example, the first communication unit 54 may be provided on the inner wall surface 52D of the second portion 82 in a case where it is disposed at a position separated from the circuit board 76 in the interior IS.

In one example, the first communication unit 54 is provided in the indoor area IS at a position close to the second portion 82 . In one example, the first communication unit 54 is provided in the interior IS at a position corresponding to the second section 82 . In one example, the first communication unit 54 is located in the indoor area IS at a position where a wireless signal can be easily transmitted and received through the second portion 82 . In one example, at least a portion of the first communication unit 54 is located in the interior IS opposite the second portion 82 . In one example, at least a portion of the first antenna 54A is located in the interior area IS facing the second portion 82 . In one example, the first antenna 54A is configured to transmit a wireless signal toward the second portion 82 .

The description accompanying the embodiment shows applicable forms of a component for a human-powered vehicle according to the present disclosure, by way of example without the intention of limitation. The component for a 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 are consistent with each other. In the modified examples described below, the elements that are the same as the corresponding elements in the above embodiment are given the same reference numerals. Such elements are not described in detail.

The second portion 82 may include the same material as the first portion 80 as long as it has a higher transmission of a wireless signal than the first portion 80. In one example, the second portion 82 may be thinner than the first portion 80 and include a slit or have something similar.

The second portion 82 may include a through opening. In one example, in a case where the second portion 82 includes a through hole, the area around the opening 84 corresponds to the second portion 82.

As in 6 1, at least a portion of the first communication unit 54 may be embedded within the second portion 82. In one example, at least a portion of first antenna 54A is embedded in second portion 82 . In one example, the entire first antenna 54A is embedded in the second portion 82 . In one example, at least a portion of electrical cable 78 may be embedded within second portion 82 . In a case where at least a portion of the first antenna 54A is embedded in the second portion 82, at least a portion of the electrical wire 78 may be embedded in the second portion 82. In an example where at least a portion of the first antenna 54A is embedded in the second portion 82, at least a portion of the first antenna 54A is encapsulated in the second portion 82 in advance. In one example, when at least a portion of the electrical wire 78 is embedded in the second portion 82, at least a portion of the electrical wire 78 is encapsulated in the second portion 82 in advance. In one example, when at least a portion of the first antenna 54A is embedded in the second portion 82, the second portion 82 is attached to the first portion 80 with at least a portion of the first antenna 54A being encapsulated in the second portion 82.

As in 7 shown, the housing 52 can have a projection 86 which protrudes from the housing 52 in an outer area ES. In one example, the second portion 82 is provided in the boss 86 . In a case where the housing 52 has the protrusion 86 , at least a part of the first communication unit 54 can be embedded in the second portion 82 . When the housing 52 has the projection 86, the entire first communication unit 54 can be embedded in the second section 82. FIG. In a case where the housing 52 has the protrusion 86 , at least a part of the first antenna 54A can be embedded in the second portion 82 . In a case where the case 52 has the protrusion 86 , the entire first antenna 54A can be embedded in the second portion 82 . When the housing 52 includes the protrusion 86, at least a portion of the electrical wire 78 may be embedded within the second portion 82. FIG. The protrusion 86 may be shaped so that the first antenna 54A can efficiently transmit or receive a wireless signal.

As in 8th As shown, the housing 52 may include a recess 88 in the outer wall surface 52C of the housing 52. As shown in FIG. In one example, the second portion 82 is provided in the recess 88 . In a case where the housing 52 has the recess 88 , at least a part of the first communication unit 54 can be embedded in the second portion 82 . In a case where the housing 52 has the recess 88 , the entire first communication unit 54 can be embedded in the second portion 82 . In a case where the case 52 has the recess 88 , at least a part of the first antenna 54A can be embedded in the second portion 82 . In a case where the case 52 has the recess 88 , the entire first antenna 54A can be embedded in the second portion 82 . In a case where the housing 52 has the recess 88 , at least a portion of the electric wire 78 can be embedded in the second portion 82 . The recess 88 may be shaped so that the first antenna 54A can efficiently transmit or receive a wireless signal.

In this specification, the phrase "at least one of" as used in this disclosure means "one or more" of a desired selection. For 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.

Reference List

10

human powered vehicle

12

wheel

12F

front wheel

12R

rear wheel

14

vehicle body

16

Frame

18

crank

20

crank axle

20A, 20B

two ends

22A, 22B

crank arms

24A, 24B

pedals

26

front fork

28

handle

30

stalk

32

drive mechanism

34

first body of revolution

36

second body of revolution

38

link

40

battery

42

external device

44

second control

46

second storage

48

second communication unit

48A

second antenna

50

component

50A

drive unit

50B

transmission

50C

electric brake

50D

electric suspension

50E

electrically adjustable seat post

50F

first suspension part

50G

second suspension part

52

Housing

52A

first housing

52B

second housing

52C

exterior wall surface

52D

interior wall surface

54

first communication unit

54A

first antenna

56

engine

58

Side wall

58A

first side wall

58B

second side wall

58C

perimeter wall

60

attachment section

62

output section

64

speed reducer

66

overrunning clutch

68

first control

70

first memory

72

Giver of the human driving force

74

Crank rotation speed sensor

76

circuit board

78

electric cable

80

first section

82

second part

84

opening

86

head Start

88

recess

IS

interior

IT

outdoor area

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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 201993904 A [0002]

Claims (13)

A component (50) for a human-powered vehicle (10), the component (50) comprising: a housing (52) having an interior (IS); and a first communication unit (54) at least partially disposed in at least one of an interior (IS) and the housing (52) and configured to provide at least one of transmission of a wireless signal to the exterior of the housing (52) and reception of the wireless signal from outside the housing (52), wherein the housing (52) has a first section (80) and a second section (82) that is smaller than the first section (80) and has a higher transmission with respect to the wireless signal than the first section (80). Component (50) after claim 1 wherein the second portion (82) is formed of a material different than that of the first portion (80). Component (50) after claim 2 wherein the second section (82) comprises a plastic material. Component (50) after claim 2 or 3 , wherein the first portion (80) comprises a metallic material. Component (50) according to one of claims 2 until 4 wherein: the first section (80) has an opening (84); and at least part of the first communication unit (54) is provided in the opening (84). Component (50) according to one of Claims 1 until 5 wherein: the first communication unit (54) comprises a first antenna (54A); and at least a portion of the first antenna (54A) is embedded in the second section (82). Component (50) after claim 6 , further comprising: a circuit board (76) disposed in the interior (IS); and an electrical cable (78) connecting the first communication unit (54) and the circuit board (76), at least a portion of the electrical cable (78) being embedded in the second portion (82). Component (50) according to one of Claims 1 until 5 wherein: the first communication unit (54) comprises a first antenna (54A); and at least a portion of the first antenna (54A) is located in the interior area (IS) facing the second section (82). Component (50) according to one of Claims 1 until 8th wherein: the housing (52) has a projection (86) which protrudes from the housing (52) to an exterior (ES); and the second portion (82) is provided on the projection (86). Component (50) according to one of Claims 1 until 8th wherein: the housing (52) has a recess (88) in a peripheral portion of the housing (52); and the second portion (82) is provided in the recess (88). Component (50) according to one of Claims 1 until 10 wherein: the housing (52) has an attachment portion (60) configured to be attached to a frame (16) of the human-powered vehicle (10); and the first portion (80) is formed integrally with the attachment portion (60). Component (50) according to one of Claims 1 until 11 comprising: at least one of a transmission (50B), an electric brake (50C), an electric suspension (50D), an electric adjustable seat post (50E) and a power unit (50A) comprising a motor (56) so configured is that it exerts a propulsive force on the human-powered vehicle (10). Component (50) after claim 12 , comprising: the drive unit (50A), wherein: the housing (52) rotatably supports a crank axle (20) so that two ends (20A, 20B) of the crank axle (20) in an axial direction of the crank axle (20) respectively from the protruding housing (52); the housing (52) has a side wall (58) extending in a direction intersecting the axial direction; and the second section (82) is provided in the side wall (58).

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