WO2016144747A2 - Driving wheel for vehicles - Google Patents

Driving wheel for vehicles Download PDF

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Publication number
WO2016144747A2
WO2016144747A2 PCT/US2016/020872 US2016020872W WO2016144747A2 WO 2016144747 A2 WO2016144747 A2 WO 2016144747A2 US 2016020872 W US2016020872 W US 2016020872W WO 2016144747 A2 WO2016144747 A2 WO 2016144747A2
Authority
WO
WIPO (PCT)
Prior art keywords
housing
driving
motor
installation space
pinion gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2016/020872
Other languages
English (en)
French (fr)
Other versions
WO2016144747A3 (en
Inventor
Donghyun Park
Daniel Wontae CHOI
Taehyung LEE
Hanghun CHOI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2017564770A priority Critical patent/JP6638738B6/ja
Publication of WO2016144747A2 publication Critical patent/WO2016144747A2/en
Publication of WO2016144747A3 publication Critical patent/WO2016144747A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0021—Hubs for driven wheels characterised by torque transmission means from drive axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/045—Arrangement in a wheel, e.g. a spare wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/003—Disposition of motor in, or adjacent to, traction wheel with two or more motors driving a single wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/13—Bicycles; Tricycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/83—Perambulators; Buggies; Strollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/80—Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
    • B60Y2200/84—Wheelchairs

Definitions

  • the present disclosure relates to a driving wheel for vehicles.
  • the present disclosure is directed to an electrically motorized wheel for bicycles.
  • Bicycles are used generally for short distance transportation means. Traditionally, they ride conventional bicycles for leisure, exercises and hobbies. Recently, they started to ride motorized bicycles driven by electric motors for a longer distance or to save physical energy.
  • a conventional motorized bicycle can be driven by an electric motor installed on the front or rear wheel.
  • Korean Patent Application Publication 10-2014-0038057 discloses a driving unit for bicycles but this prior driving unit is not energy efficient and cost efficient.
  • One or more objectives of the present disclosure is to provide an electrically motorized wheel for bicycles, which is energy efficient and can be manufactured for a low cost, and moreover can be applicable to wheel chairs, baby carriages and any types of two-wheel vehicles as well, and can be provided with a replaceable battery.
  • aspects of the present disclosure provide an electrically motorized wheel for vehicles.
  • an electrically motorized wheel for a vehicle includes a wheel rim; a housing disposed inside and connected to the wheel rim, wherein the housing defines an installation space inside the housing; a driving force generating mechanism disposed in the installation space; and a driving force transfer mechanism connected to the driving force generating mechanism and configured to transfer a driving force generated from the driving force generating mechanism to the housing.
  • the electrically motorized wheel further includes a controller disposed in the installation space and electrically connected with the driving force generating mechanism; and a power source to provide electric power to the controller and the driving force generating mechanism.
  • the electrically motorized wheel is configured to be detachably attached to the wheel rim.
  • the electrically motorized wheel is for a bicycle.
  • the housing of the electrically motorized wheel includes a right side wall and a left side wall and at least one opening located on one of the right and left side walls such that at least one of the driving force generating mechanism and the power source can be replaced through the at least one opening.
  • the housing includes at least one cover for covering the at least one opening, and the at least one cover includes a fastener for detachably attaching the at least one cover to the housing.
  • the driving force generating mechanism includes a first motor and a second motor.
  • the installation space includes a first installation space for disposing the first motor, a second installation space for disposing the second motor, and a third installation space for disposing the power source.
  • the housing includes a plurality of openings for circulating air into the housing, the plurality of opening being disposed on at least one of a right side wall and a left side wall thereof.
  • both of the first motor and second motor are configured to drive at the same time.
  • the first motor, the second motor and the power source have the same weight.
  • the driving force transfer mechanism is disposed at the center of the housing, and the first motor, the second motor and the power source are disposed in three different radial directions.
  • the driving force transfer mechanism includes a shaft connected to a frame of the vehicle and a plurality of gears configured to transfer the driving force to the housing.
  • the shaft is coupled with a right portion of the housing through a first bearing located therebetween, and is also coupled with a left portion of the housing through a second bearing located therebetween.
  • the plurality of gears includes a first pinion gear driven by the first motor, a second pinion gear driven by the second motor, and a third pinion gear engaging with the first and second pinon gears, and wherein the third pinon gear is fixed to the shaft which is connected to a frame of the vehicle and thus the housing is driven by the combined force of the first and second pinion gears.
  • the power source is a replaceable battery.
  • the housing includes a first prong for defining a first installation space, a second prong for defining a second installation space and a third prong for defining a third installation space, each one end of the prongs being connected to the rim; the first, second and third prongs are arranged in three different radial directions; the driving force generating mechanism includes a first motor disposed in the first installation space and a second motor disposed in the second installation space; a battery is disposed in the third installation space; the housing includes a central installation space for disposing the driving force transfer mechanism including a first pinion gear driven by the first motor, a second pinion gear driven by the second motor, and a third pinion gear connected to the shaft; the first and second gears engage with the third gear; the housing is driven by the combined force of the first and second pinion gears when the first and second gears are driven by the first and second motors respectively; and the shaft is coupled with a right portion of the housing through a bearing and with a left portion
  • a driving housing configured to be detachably attached to a wheel rim for a vehicle.
  • the driving housing can include a first motor for driving a first pinion gear located inside the driving housing and fixed to the driving housing; a second motor for driving a second pinion gear slantly facing the first pinion gear, located inside the driving housing and fixed to the driving housing; a third pinion gear located between the first and second motors, wherein the third pinion gear is engaged with the first and second pinion gears, and the combined driving force of the first and second pinion gears is applied to the third pinion gear; and a shaft fixed to the third pinion gear at the center of thereof and perpendicular to the axes of the first and second pinon gears, wherein the shaft and the third pinion gear are fixed to a frame of the vehicle, and wherein the driving housing including the first and second motors rotates with respect to the fixed shaft when the first and second pinion gears are driven by the first and second motors respectively.
  • the electrically motorized wheel is configured such a way that it can be installed on a conventional bicycle by replaced a wheel with the present motorized wheel so that cost can be saved. Further, the energy efficiency of the wheel is superior to a prior wheel driven by a single motor as it is driven by the combined force of the duel motors including the first and second motors. Further, it is easier to replace the battery as the hosing includes an opening and a cover for the opening and through which the battery can be replaced. Further, since the two motors are included in the motorized wheel, the wheel can be driven even if one motor does not work.
  • FIG. 1 is a perspective view of a wheel for a vehicle according to an embodiment of the present invention
  • FIG. 2 is a sectional view of the embodiment of FIG. 1;
  • FIG. 3 is a detailed perspective view of a driving force transfer mechanism of the embodiment of FIG. 1.
  • an electronically motorized wheel (100) for a vehicle is provided.
  • the vehicle can be bicycles but can include any types of vehicles such as wheel chairs for patients and disabled persons, baby carriers, two-wheel vehicles and electric carts and the like.
  • the electrically motorized wheel (100) includes a wheel rim (110) which can be attached to a wheel tire of a bicycle, a housing (120) disposed inside and connected to the wheel rim (110) in which the housing defines an installation space (121) inside the housing (120), a driving force generating mechanism (130) disposed in the installation space (121), and a driving force transfer mechanism (140) connected to the driving force generating mechanism (130) and configured to transfer a driving force generated from the driving force generating mechanism (130) to the housing (120).
  • the wheel (100) can include a controller (300) disposed in the installation space (121) and electrically connected with the driving force generating mechanism (130), and a power source (160) to provide electric power to the controller (300) and the driving force generating mechanism (130).
  • the power source (160) can be a replaceable battery or rechargeable battery.
  • the housing (120) is configured to be detachably attached to the wheel rim (110).
  • the housing (120) includes a right side wall and a left side wall and at least one opening located on one of the right and left walls such that at least one of the driving force generating mechanism (130) and the power source (160) can be replaced through the at least one opening.
  • the wheel rim (110) can be in a ring shape and can be coupled with a conventional wheel tire.
  • the housing (120) can be an integral part of the wheel (100) so that the housing (120) and the wheel rim (110) can be integrally formed and manufactured using die casting, or can be a separate part from the wheel rim (110) so that it can be detachably connected to the wheel rim (110) through different types of connectors or fasteners.
  • the housing (120) itself can work as a spoke that transfers rotating force to the wheel (100), and can be attachable to a conventional bicycle by users.
  • the housing (120) can be connected to the wheel rim (110) by using bolts and nuts, and other types of known fasteners.
  • the driving force generating mechanism (130) includes a dual motor system including a first motor (131) and a second motor (132) which is capable of driving a bicycle electrically without manpower.
  • a dual motor system including a first motor (131) and a second motor (132) which is capable of driving a bicycle electrically without manpower.
  • One advantage of this dual motor configuration of the motorized wheel (100) is to drive the bicycle even in an emergency situation where one of the first and second motors is broken.
  • the driving force generating mechanism can be used to assist a user using his manpower to drive the bicycle.
  • the installation space (121) includes a first installation space (121a) for disposing the first motor (131), a second installation space (121b) for disposing the second motor (132), and a third installation space (121c) for disposing the power source (160).
  • the housing (120) includes a first prong for defining the first installation space (121a), a second prong for defining the second installation space (121b) and a third prong for defining the third installation space (121c), each one end of the prongs being connected to the wheel rim (110), in which the first, second and third prongs are arranged in three different radial directions.
  • the first, second and third installation spaces (121) are independently arranged so that the parts installed inside the housing (120) including the first and second motors (131, 132), the driving force transfer mechanism (140), the battery (160) and the controller (300) will be disposed inside the housing (120) without unnecessary interferences, and it will be easier for the user to replace such parts.
  • the housing (120) further can include different types of sensors such as a sensor for monitoring the rpm or output torque of the motors, the output torque of the bicycle and the speed of the bicycle, and a wireless communication unit so that such rpm of the motors can be wirelessly controlled.
  • the sensor can read the rpm of the wheel (100) or the torque of the bicycle, and the controller (300) can control the speed of the motors based on such rpm of the wheel or the torque of the bicycle.
  • the housing (120) can have a wireless electronic device such as Bluetooth® so that the user can control the speed of the motors wirelessly using a remote controller.
  • the controller (300) can be installed on a place adjacent to the handle of the bicycle to control the motors.
  • the bicycle can have a control switch to turn on or off the electric power from the battery (160) to the motors, which can be installed onto the handle or another part of the bicycle which can be conveniently accessed by the user.
  • the housing (120) has an opening for replacing a battery (160) and a cover (123b) for covering the opening disposed on one side wall of the housing (120). Further, the housing (120) has two other openings for replacing a first motor (131) and a second motor (132) respectively and located on the same side wall of the housing (120), and two covers (123a) for covering the two openings respectively.
  • the covers (123) are configured to protect the installation space (121) from outside, and may have a fastener for detachably attaching the covers (123) to the housing (120). The fastener can be very different types.
  • each of the covers (123) may have a hook located at one or more ends thereof which can be coupled with one or more holes or openings located on the side wall of the housing (120).
  • one or more holes or openings can be formed in the covers (123) and one or more hooks can be formed in the side wall of the housing (120) so that the covers (123) can be detachable by the users to replace the motors (131, 132) and battery (160).
  • the housing (120) includes a plurality of openings (124) for circulating air into the installation space (121) of the housing (120), and the plurality of openings (124) are disposed on one of a right side wall and a left side wall thereof.
  • the plurality of openings (124) are disposed on one side wall of the housing (120) and the covers (123) are disposed on another side wall of the housing (120) so that the heat generated from the motors and gears can be air cooled.
  • the plurality of openings (124) may be provided on both side walls of the housing (120).
  • both of the first motor (131) and second motor (132) are configured to drive at the same time and speed so that the combined driving force of the first motor (131) and the second motor (132) can be maximized and energy efficient.
  • the first motor (131) and the second motor (132) and the power source (160) have the same weight so that the centrifugal force of the rotating housing and wheel (100) can be distributed equally into the radial directions thereof and that the center of gravity would not be eccentric.
  • the motorized wheel (100) may have weight adjusters disposed inside the housing (120) or on the wheel rim (110) to adjust the rotating wheel balance.
  • the driving force transfer mechanism (140) is disposed in the middle portion of the housing (120), and the first motor (131), the second motor (132) and the power source (160) are disposed in three different radial directions as shown in FIG. 2.
  • the first motor (131), the second motor (132) and the power source (160) can be disposed in three different directions with a 120 degree angle.
  • the driving force transfer mechanism (140) further includes a shaft (141) connected to a third pinion gear (143) and also connected to the frame of the bicycle.
  • the driving force transfer mechanism (140) is configured to transfer the driving force to the housing (120) in which one portion of the shaft (141) is coupled with a right side portion (145a) of the housing (120) through a bearing (146), and another portion of the shaft (141) is coupled with a left portion (145b) of the housing (120) through another bearing (146).
  • the driving force transfer mechanism (140) includes a first pinion gear (133) driven by the first motor (131), a second pinion gear (134) driven by the second motor (132), and a third pinion gear (143) engaging with the first and second pinon gears (133, 134) and connected to the shaft (141).
  • the housing (120) also defines a central installation space for disposing the driving force transfer mechanism (140).
  • the housing (120) includes the driving force transfer mechanism (140) that is disposed in the middle portion of the housing (120), connected to and driven by the first and second motor (131, 132), and transfers the combined force to the third pinion gear (143) and then to the shaft (141) which is fixed to the frame of the bicycle, such that the housing (120) and the motorized wheel (100) can be rotated.
  • the driving force transfer mechanism (140) that is disposed in the middle portion of the housing (120), connected to and driven by the first and second motor (131, 132), and transfers the combined force to the third pinion gear (143) and then to the shaft (141) which is fixed to the frame of the bicycle, such that the housing (120) and the motorized wheel (100) can be rotated.
  • the first and second pinion gears (133, 134) are used as input gears and the third pinon gear (143) is used as an output gear driven by the combination of the first and second gears (133, 134), in which the output gear, the third pinion gear (143), does not rotes but is connected to the fixed shaft (141), and thus the housing (120) with the first and second motors (131, 132) rotates with respect to the shaft (141) and third pinion gear (143) so as to drive the wheel rim (110) of the bicycle.
  • the shaft (141) is fixed to the third pinion gear (143) at the center thereof and is arranged perpendicularly to the axes of the first and second pinion gears (133, 134).
  • the driving force transfer mechanism (140) has a bearing (146) located between the shaft (141) and a left portion (145 A) and a right portion (145B) of the housing (120).
  • the driving force transfer mechanism (140) is not limited to the pinion gear type but can be other types of gears as long as there are two input gears connected to the housing and one output gear engaged with the input gears and fixed to the shaft of the frame of the bicycle such that the housing is driven by the combined force of the input gears.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
PCT/US2016/020872 2015-03-06 2016-03-04 Driving wheel for vehicles Ceased WO2016144747A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017564770A JP6638738B6 (ja) 2015-03-06 2016-03-04 車両のための駆動輪

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/641,140 2015-03-06
US14/641,140 US10065451B2 (en) 2015-03-06 2015-03-06 Driving wheel for vehicles

Publications (2)

Publication Number Publication Date
WO2016144747A2 true WO2016144747A2 (en) 2016-09-15
WO2016144747A3 WO2016144747A3 (en) 2016-10-27

Family

ID=56850481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/020872 Ceased WO2016144747A2 (en) 2015-03-06 2016-03-04 Driving wheel for vehicles

Country Status (3)

Country Link
US (1) US10065451B2 (enExample)
JP (1) JP6638738B6 (enExample)
WO (1) WO2016144747A2 (enExample)

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WO2016144747A3 (en) 2016-10-27
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US10065451B2 (en) 2018-09-04
JP2018510812A (ja) 2018-04-19
US20160257165A1 (en) 2016-09-08

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