WO2023056531A1 - Ensemble roue et montant de suspension pour véhicule électrique - Google Patents

Ensemble roue et montant de suspension pour véhicule électrique Download PDF

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Publication number
WO2023056531A1
WO2023056531A1 PCT/AU2022/051213 AU2022051213W WO2023056531A1 WO 2023056531 A1 WO2023056531 A1 WO 2023056531A1 AU 2022051213 W AU2022051213 W AU 2022051213W WO 2023056531 A1 WO2023056531 A1 WO 2023056531A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel assembly
assembly
wheel
utility conduit
suspension upright
Prior art date
Application number
PCT/AU2022/051213
Other languages
English (en)
Inventor
Julian Broadbent
Nicholas Farmer
Matthew Campbell Greaves
Original Assignee
Applied Electric Vehicles Ltd
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
Priority claimed from AU2021903245A external-priority patent/AU2021903245A0/en
Application filed by Applied Electric Vehicles Ltd filed Critical Applied Electric Vehicles Ltd
Publication of WO2023056531A1 publication Critical patent/WO2023056531A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • 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
    • 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
    • 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
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/004—Mounting arrangements for axles
    • B60B35/006—Mounting arrangements for axles with mounting plates or consoles fitted to axles
    • B60B35/007—Mounting arrangements for axles with mounting plates or consoles fitted to axles for mounting suspension elements to axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/16—Axle housings
    • B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/18—Arrangement of bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/001—Arrangements for attachment of dampers
    • B60G13/005—Arrangements for attachment of dampers characterised by the mounting on the axle or suspension arm of the damper unit
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/329—Systems characterised by their speed sensor arrangements
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/005—Components of axially engaging brakes not otherwise provided for
    • F16D65/0056—Brake supports
    • 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
    • B60B27/0068—Hubs characterised by functional integration of other elements the element being a sensor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/10—Reduction of
    • B60B2900/115—Complexity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/003—Steerable axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/07—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the damper being connected to the stub axle and the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/129—Damper mount on wheel suspension or knuckle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/18—Mounting of vehicle engines
    • B60G2204/182—Electric motor on wheel support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/20—Mounting of accessories, e.g. pump, compressor
    • B60G2204/202—Mounting of accessories, e.g. pump, compressor of cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/50—Electric vehicles; Hybrid vehicles
    • 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
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0076—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B60T13/38—Brakes applied by springs or weights and released by compressed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/027—Electrically controlled valves in pneumatic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/402—Back-up
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/414—Power supply failure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0008—Brake supports
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/08—Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure

Definitions

  • This invention relates to a wheel assembly for an electric vehicle.
  • the invention is described with reference to a wheel assembly in an electrically powered road vehicle which has a hub integral with an electrical motor and a stub axle, and the wheel assembly is mounted to a suspension upright of the vehicle via the stub axle.
  • Conventional wheel assemblies for internal combustion engine vehicles typically have a hub and disc rotatably mounted on a stub axle (spindle) carried by an upright connected to the suspension of the vehicle.
  • the wheel which carries a tyre is typically removably mounted to threaded fasteners protruding from the hub and secured thereto by nuts.
  • the bearings of the wheel assembly are on the hub side of the assembly, and the brakes and their associated conduits that provide hydraulic or pneumatic fluid for their actuation are external of the disc, taking up considerable space.
  • Electric vehicle wheel assemblies where the electric motor is disposed within the wheel, have been known for many years.
  • US3,055,448(Fagel) dating back to the early I960’ s discloses an electric motor axle assembly for heavy vehicles.
  • a hub-less rim and tyre assembly can be removed from the hub motor assembly for tyre service.
  • the assembly has a long axial length of a gearbox, motor and motor commutation that is not suited to a steerable assembly and is mounted in a fixed arrangement as part of a solid axle.
  • the hub-less wheel arrangement is needed due to the length of the assembly.
  • the commutator within the assembly converts the DC input power to alternating current for the rotating motor.
  • Providing the electronics within the assembly is a way of addressing the difficulty of supplying power cabling to the motor with a vehicle mounted motor controller, but at an elevated risk of damaging the sensitive electronics assembly. It discloses cabling that is routed down the centre of the stub axle inside of the wheel bearings and uncontrolled cabling leaving the upright into the suspension assembly. The routing of the cable in this manner limits the cross section available for the cabling and restricts the format of the connector. The cabling departs the upright at a significant distance from the steering axis (as shown in Fig 1), exposing the cable to both significant rotation and translation when used in a steering assembly. The cable assembly in this arrangement is delicate, not suited to a vehicle having challenging steering applications, and is prone to difficulty of sealing the cable bundle.
  • US2010/0163323 discloses a compact electric wheel motor assembly for electric vehicles arranged with a McPherson strut suspension assembly.
  • the assembly is suitable for a steerable wheel and the McPherson strut unit is used to carry the supply cables away from the motor assembly.
  • this disclosure does not address the twist and translation of the cables which would potentially cause damage and failure thereof.
  • the cables are not easily separated from the assembly and are shown to be continuous from the motor into the suspension assembly through a non-rotational pathway.
  • the wheel rim and tyre is a hub-less assembly capable of being removed to service the tyre.
  • the wires 38 must be pulled through the upright 22 to remove the motor, which is the conventional way in the prior art. This wire arrangement is prone to failure, and it is difficult to service and maintain such an assembly.
  • US2014/0125205 discloses a wheel motor assembly for heavy vehicles.
  • the assembly contains a gearbox, motor, control equipment, disc brake and a hub-less rim and tyre assembly for tyre service.
  • the DC supply cables 62 are supplied as a continuous cable via the central shaft within the constraint of the wheel bearings of the machine to the control equipment which then supplies AC to the electric machine.
  • the path of the DC supply cables from the hub to the suspension unit is not detailed in this prior art.
  • providing continuous cable via the central shaft within the constraint of the wheel bearings means the assembly is difficult to service and maintain.
  • electric powered vehicles are typically provided with wheel assemblies having integral electric motors that suit the configuration, and shape and size of those wheel assemblies.
  • each wheel assembly is steerable by an electrically powered steering device associated therewith.
  • One such arrangement is the Protean 360-degree corner module that is used with an urban autonomous mobility pod as shown at https://www.proteanelectric.com/360-degree-corner-module-accelerates-revolution-in- urban-mobility/ .
  • This corner module has the steering, suspension, motor, and pneumatic rideheight adjustment in a single unit.
  • a mobility pod fitted with four of these corner modules is capable of tight space manoeuvring capabilities.
  • Electromechanical braking systems are inherently bulky and difficult to package with a direct drive wheel motor. Additionally, an electromechanical braking unit typically requires both power and a control system to function, and if either is lost then the brake cannot function.
  • an embodiment of the present invention aims to provide a wheel assembly comprising a hub integral with an electrical motor which seeks to ameliorate at least one of the disadvantages of the prior art.
  • the present invention consists in a wheel assembly for an electrical vehicle, said wheel assembly comprising: a hub integral with an electrical motor; a stub axle with a free end; and bearings, said wheel assembly operably and removably mounted to a suspension upright of said electrical vehicle, and at least a first utility conduit passes through said stub axle to interconnect with a respective second utility conduit within said suspension upright, characterised in that said suspension upright has a bore therein with an internally disposed mounting face opposed to an open end thereof, said mounting face at substantially right angles to the axis of rotation of said wheel assembly and when said wheel assembly is operably mounted to said suspension upright, said stub axle is introduced via said open end of said bore to be disposed therein, and removable fasteners within said suspension upright extend substantially parallel to the axis of rotation of said wheel assembly via first apertures in said mounting face to engage with respective second apertures in the free end of said stub axle, and said first utility conduit interconnects with said respective second utility conduit at the interface between said free end of said wheel assembly
  • bearings comprise an inboard bearing and an outboard bearing and said path of said first utility conduit in said stub axle is external to the peripheral diameter of said inboard wheel bearing.
  • said at least first utility conduit and said respective second utility conduit are electrical cables.
  • said electrical cables are for powering said electric motor from at least one battery on said electric vehicle remote from said wheel assembly.
  • said electrical cables are for controlling the electric motor via signals from at least one control unit on said electric vehicle remote from said wheel assembly.
  • said wheel assembly comprises at least one pneumatically actuated brake unit disposed within said wheel assembly and said at least first utility conduit and said respective second utility conduit are pneumatic conduits for delivering air to said braking unit from an air supply disposed on said electric vehicle remote from said wheel assembly.
  • a solenoid valve for actuating said pneumatically actuated brake unit is disposed within said suspension upright.
  • outboard bearing and said inboard bearing are both rolling bearings and said inboard bearing having a diameter smaller than said outboard bearing.
  • said inboard bearing having a diameter substantially smaller than said outboard bearing and said first apertures disposed on said mounting face of said suspension upright are disposed within the inner diameter of said outboard bearing.
  • said suspension upright has a housing internally configured to receive at least a portion of said second utility conduit as a spiral loop.
  • said suspension upright is supported by a suspension arm, and said suspension arm comprises at least one hollow portion, and said second utility conduit passes through said hollow portion of said suspension arm and into said suspension upright.
  • said suspension arm comprises a primary arm and a secondary smaller arm pivotally attached to said primary arm and said at least one hollow portion is disposed within said secondary smaller arm.
  • said secondary smaller arm has limited pivotal movement during the steering of said wheel assembly.
  • At least a portion of a controller for controlling said motor is integral with said suspension upright.
  • said motor has a rotary element position sensor disposed thereon and said orientation of said rotary element position sensor is maintained relative to the housing of said hub by said brake unit when said wheel assembly is removed from said suspension upright.
  • the present invention consists in a steerable wheel and tyre assembly for an electrical vehicle, said wheel and tyre assembly for use adjacent to a respective motor, said wheel and tyre having a hub with bearings, said hub is either integral with said motor or removably attached to said motor, said wheel and tyre assembly operably and removably mounted to a suspension upright of said electrical vehicle, and at least a first utility conduit passes through said stub axle to interconnect with a respective second utility conduit within said suspension upright, characterised in that said suspension upright has a bore therein with an internally disposed mounting face opposed to an open end thereof, said mounting face at substantially right angles to the axis of rotation of said wheel assembly and when said wheel assembly is operably mounted to said suspension upright, said stub axle is introduced via said open end of said bore to be disposed therein, and removable fasteners within said suspension upright extend substantially parallel to the axis of rotation of said wheel assembly via first apertures in said mounting face to engage with respective second apertures in the free end
  • interconnection at said interface is by abutment between said stub axle and said mounting face and said separable connection between said first utility conduit and said second utility conduit at said interface is by a blind mate connector.
  • bearings comprise an inboard bearing and an outboard bearing and said path of said first utility conduit in said stub axle is external to the peripheral diameter of said inboard wheel bearing.
  • at least first utility conduit and said respective second utility conduit are electrical cables.
  • said electrical cables are for powering said electric motor from at least one battery on said electric vehicle remote from said wheel assembly.
  • said electrical cables are for controlling the electric motor via signals from at least one control unit on said electric vehicle remote from said wheel assembly.
  • said wheel assembly comprises at least one pneumatically actuated brake unit disposed within said wheel assembly and said at least first utility conduit and said respective second utility conduit are pneumatic conduits for delivering air to said braking unit from an air supply disposed on said electric vehicle remote from said wheel assembly.
  • a solenoid valve for actuating said pneumatically actuated brake unit is disposed within said suspension upright.
  • outboard bearing and said inboard bearing are both rolling bearings and said inboard bearing having a diameter substantially smaller than said outboard bearing.
  • said inboard bearing having a diameter substantially smaller than said outboard bearing and said first apertures disposed on said mounting face of said suspension upright are disposed within the inner diameter of said outboard bearing.
  • Fig. 1 is a perspective view of an embodiment of an electric road vehicle having a platform carrying a removable modular pod, the platform having a plurality of wheels in accordance with the present invention.
  • Fig. 2 is an is an upper perspective view of the platform of the vehicle shown in Fig. 1.
  • Fig 3 is an inner perspective view of one of the wheels of the electric road vehicle shown in Fig. 1.
  • Fig. 4 is a cross-sectional partial perspective view of the wheel shown in figure 3.
  • Fig. 5 is a suspension assembly for mounting the wheel of Fig. 3 to the electric vehicle of Fig. 1
  • Fig. 6 is a perspective view of the wheel of Fig 3 mounted to suspension assembly of Fig. 5.
  • Fig 7. is a perspective view of the wheel and suspension assembly of Fig. 6 with the wheel removed from the suspension assembly.
  • Fig. 8 is a cross-sectional partial perspective view of the wheel and suspension assembly shown in Fig. 7.
  • Figs. 9(a) and 9(b) are upper perspective views of the suspension upright and lower linkage arm of the suspension assembly of Fig. 5, shown alone, as the suspension upright is pivoted relative to the lower linkage arm.
  • Figs. 10(a) and 10(b) are side perspective views of the suspension upright and lower linkage arm of Figs 9(a) and 9(b).
  • Figs. 11(a) and 11(b) are plan views of lower linkage arm shown in Figs 9(a) and 9(b) with the suspension upright omitted.
  • Figs. 12(a) and 12(b) are perspective views of lower linkage arm shown in Figs 11(a) and 11 (b).
  • Figs. 13 is a pneumatic circuit diagram for operation of two of the brake units in an opposed “wheel assembly” pair.
  • Fig. 14 is a cross-sectional partial perspective view of a second embodiment of a steerable wheel and tyre assembly in accordance with the present invention.
  • a “steerable wheel assembly” is one where the steering function maybe “active” or “passive”.
  • An active controlled steering system might be an operator controlled steering rack, or a computer- controlled servo system.
  • a passively steered wheel assembly might contain a suspension linkage that provides compliance or geometry to allow favourable rotation of the wheel assembly by a limited angle during cornering or under bump loads.
  • Figs. 1 to 13 depict an embodiment of a modular self-contained steerable wheel assembly 3 and associated suspension assembly 130, for use in a low-profile wheeled platform frame 1 for an electrically powered road vehicle 10.
  • the steerable wheel assembly 3, has an active steering function by means of a computer-controlled servo system.
  • wheel 3 Modular self-contained steerable wheel assembly 3 will hereinafter be referred to as “wheel 3”.
  • Platform 1 substantially carries all the mechanical, electrical, and structural componentry necessary for fully functional road vehicle 10, including the drive and steering system, and the braking system.
  • Platform 1 carries a removable modular pod 2 which operably engages therewith.
  • Modular pod 2 may be one of many different pods to suit different commercial, industrial and passenger transportation applications.
  • Platform 1 has a body made of a two piece (upper and lower) sealed enclosure. In this embodiment platform 1 is approximately 3.4 metres long, and about 1.48 metres wide and is about 0.75 metres high and capable of carrying a payload of about 1000 kg. Preferably platform 1 has a weight of less than 500kg. Where modular pod 2 has a typical height of about 1.25 metres, and it is fitted to platform 1, the height of road vehicle 1 would be about 2 metres.
  • Platform 1 has four wheels (wheels assemblies) 3, namely two pairs of wheels.
  • the first pair of wheels 3 are disposed on opposed sides of platform 1 near one end 6a thereof, and the second pair of wheels 3 are disposed on opposed sides of platform 1 near the other end 6b thereof.
  • Each wheel 3 is driven by an independent electric motor 4 associated therewith.
  • Platform 1 is symmetric in shape and configuration, about its central longitudinal plane L lying on a longitudinal axis thereof, and its central transverse plane T lying on a transverse axis thereof, which is orthogonal thereto.
  • opposed first and second ends 6a, 6b of platform 1 about transverse plane T appear the same, as do opposed first and second sides 7a, 7b about longitudinal plane L.
  • the body of platform 1 has raised cavity portions 8a, 8b near each of opposed first and second ends 6a, 6b respectively, interconnected by a lower slimmer central portion 9.
  • Raised cavity portions 8a, 8b contain the wheel-drive and control componentry of platform 1, as well as the pod connection componentry that interconnects platform 1 to modular pod 2.
  • Raised cavity portions 8a, 8b like that of ends 6a, 6b and sides 7a, 7b are similarly shaped.
  • platform 1 is bi-directional. When platform 1 is stationary, an external observer could not by simply looking at platform 1 discern (recognize) first and second ends 6a, 6b thereof as either fore or aft ends of platform 1. Rather, first and second ends 6a and 6b of platform 1 may operably and indiscemibly by the shape and configuration of platform 1, interchange as the lead (fore) end of platform 1.
  • Each wheel 3, as shown in Figs. 3 and 4 comprises an electric motor (and drive) 4 integrated into the wheel/rim structure.
  • electric motor 4 is part of wheel hub 3a.
  • a suspension assembly 130 shown separately in Fig. 5, is for connecting wheel 3 to platform 1 of vehicle 10.
  • Suspension assembly 130 comprises upper and lower linkage (suspension) arms 131 and 132.
  • Suspension upright 95 is pivotally mounted and disposed between upper and lower linkage arms 131,132.
  • the two ends 133 of lower linkage arm 132 and two ends 134 of upper linkage arm 131 are for pivotal attachment to platform 1.
  • Suspension assembly 130 also has a shock absorber (damper) unit 135 connected at its lower end 135b to lower linkage arm 132, and whose upper end 135a is for attachment to platform 1.
  • each wheel 3 is removably mounted to a respective suspension upright 95 of suspension assembly 130.
  • Electric motor 4 has a rotor backing iron 81 used to support the magnetic pole pieces of motor 4, attached to inside of rim 82.
  • Wheel 3 is also fitted with a self-actuating brake unit, namely a pneumatically actuated failsafe brake unit 90, hereinafter referred to as “brake unit 90”.
  • Brake unit 90 is described in detail in International Patent Publication No. WO 2022/082271 entitled “A wheel assembly for an electric vehicle”.
  • the mechanical actuating component and braking surface (brake pad) components of braking unit 90 are disposed within wheel 3.
  • brake unit 90 of a wheel 3 is fluidally connected to solenoid valve 98 which is disposed within suspension upright 95 with an incoming air path (line) 97 from air supply 100.
  • the air path 97 is attached to upright 95 and is internally routed to solenoid valve 98.
  • Air supply tank 100 disposed on platform 1, receives air from air compressor 102 and provides pressurized air to air path 97.
  • a regulator (not shown) might be installed in air supply path 97 to regulate the pressure of air supply tank 100.
  • a fluid restrictor 99 in the pneumatic circuit of air path 97 avoids rapid onset of braking.
  • fluid restrictor 99 may instead be a silencer or relief valve.
  • Wheel 3 with its integral motor 4 and braking unit 90 is modular, and is easily installed and removed from platform 1, thus making for ease of installation and removal for replacement, service, and repair.
  • Wheel (wheel assembly) 3 which includes hub 3a integral with electrical motor 4, has a stub axle 105 with a free end 106 and inboard and outboard bearings 140,141.
  • Wheel assembly 3 is operably and removably mounted to suspension upright 95 with at least its first utility conduits, namely that of the pneumatic (fluid) conduit 110a and the electrical conduits (power and sensing conduits) 110b, passing through stub axle 105 to interconnect with respective second utility conduits, again pneumatic (fluid) conduit 120a and the electrical conduits (power and sensing conduits) 120b within suspension upright 95.
  • first utility conduits namely that of the pneumatic (fluid) conduit 110a and the electrical conduits (power and sensing conduits) 110b
  • the air path (line) 97 is via pneumatic (fluid) conduit 120a through suspension upright 95, and via pneumatic (fluid) conduit 110a through wheel hub 3a of wheel 3.
  • the paths of first utility conduits 110a, 110b in stub axle 105 are external to the peripheral diameter of inboard wheel bearing 140.
  • Suspension upright 95 has a bore 87 therein with an internally disposed mounting face 88 opposed to an open end 89 thereof, and when wheel assembly 3 is operably mounted to suspension upright 95, stub axle 105 is introduced via open end 89 of bore 87 to be disposed therein, and removable fasteners (not shown) within suspension upright 95 extend via first apertures 84 in mounting face 88 to engage with respective second apertures 83 in the free end 106 of stub axle 105. Apertures 84 within suspension upright 95 are oriented in a manner that the abovementioned removable fasteners extend substantially parallel to the axis of rotation of wheel assembly 3. Mounting face 88 is substantially at right angles to the axis of rotation of said wheel assembly 3, when wheel assembly 3 is mounted to suspension upright 95.
  • First utility conduits 110a, 110b interconnect with respective second utility conduits 120a, 120b at an interface of free end 106 of stub axle 105 and mounting face 88.
  • this interface between free end 106 of stub axle 105 and mounting face 88 is by abutment therebetween.
  • Sealing means (such as an O-ring or other seal) are provided at the interface between pneumatic (fluid) conduit 120a at mounting face 88 of suspension upright 95, and pneumatic (fluid) conduit 110a on stub axle 105 of wheel 3.
  • Electrical conduits (power and sensing conduits) 110b have “male projection” connectors at their free ends extending from stub axle 105, which interconnect with “female receiving” connectors of electrical conduits (power and sensing conduits) 120b on suspension upright 95.
  • These male/female connectors are preferably conventional blind mate connectors used in power and sensing circuits.
  • inboard bearing 140 and an outboard bearing 141 of wheel 3 are roller bearings.
  • Inboard bearing 140 having a diameter smaller than the diameter of outboard bearing 141.
  • the larger outboard bearing 141 has a load capacity and/or rating greater than that of the smaller diameter inboard bearing 141.
  • First apertures 84 disposed on mounting face 88 of suspension upright 95, are disposed within the inner diameter of outboard bearing 141.
  • conduits 120a, 120b are flexible conduits.
  • suspension upright 95 has a spiral conduit housing 115 disposed therein, as shown in Fig. 8, through which flexible conduits 120a, 120b pass through, and are substantially housed, with provision for an “amount of play”.
  • lower linkage arm 132 is made up of a primary arm 132a to which a secondary arm 132b is pivotally attached.
  • Figs. 9(a) and 9(b) along with Figs 10(a) and 10(b) only show suspension upright 95 and lower linkage (suspension) arm 132.
  • flexible second conduits 120a, 120b which extend from platform 1 run along and through lower linkage arm 132.
  • the secondary arm 132b which is immediately below suspension upright 95 is hollow and allows for conduits 120a, 120b to pass therethrough and then into suspension upright 95.
  • Figs 11(a) and 11(b), along with Figs 12(a) and Figs 12(b) depict plan and perspective views of the lower arm 132 with the suspension upright 95 omitted. These views show that conduits 120a and 120b travel along primary arm 132a and then through secondary arm 132b.
  • the limited pivotal movement of secondary arm 132b relative to primary arm 132a together with the provision of space to allow flexible conduits 120a and 120b to move within primary arm 132a and spiral conduit housing 115 within suspension upright 95, ensures these conduits can move with an “amount of play” as suspension upright 95 pivots along with wheel 3.
  • first conduits 110a, 110b are extending internally of stub axle 105, to interconnect with second conduits 120a, 120b within suspension upright 95, then these conduits and their point of connection is not externally disposed. Furthermore, as these first conduits 110a, 110b interconnect with second conduits 120a and 120b at an interface of free end 106 of stub axle 105 with mounting face 88 of suspension upright 95, the connection and disconnection of these conduits occurs when wheel 3 is being fitted or removed from suspension upright 95.
  • rotary element position sensor 96 disposed on motor 4 has its orientation maintained relative to the housing of wheel hub 3a by brake unit 90, when wheel 3 is removed from suspension upright 95.
  • suspension upright 95 provides a space 138 for housing a printed circuit board or other type of control device (not shown) that receives and processes signals from sensors within wheel 3. It is advantageous to have such monitoring and processing of wheel control signals occurring as close as possible to wheel, with such printed circuit board or other type of control device being operably connected to control units (not shown) disposed on platform 1.
  • This printed circuit board, or other type of control device may have as its primary function the receiving and processing of signals from an angle sensor, Accelerometer/MU, temperature sensors and brake actuation control.
  • a printed circuit board (or other type of control device) may be used for process checking namely as a supervisor, that includes secondary temperature sensor processing for current sensors, secondary position sensors, pressure sensors to ensure wheel 3 is functioning as intended.
  • conduits 110a, 110b, and 120a, 120b provide a protected cabling and pneumatic air supply extending from platform 1 to wheel 3, the compactness of suspension assembly 130 provides improved suspension geometry and improved placement of the external pivots of the suspension, and a reduced scrub radius. Furthermore, the arrangement described provides an increased diameter of motor 4, with minimal impact on the suspension geometry.
  • wheel 3 Whilst the abovementioned wheel 3 is described with use of an electric vehicle 10 having a platform 1 and modular pod 2, wheel 3 could be used on other not shown electric vehicles.
  • the abovementioned embodiment of the present invention is designed such that the wheel assembly 3 and its incorporated brake unit 90 of vehicle 10, meets the functional safety ASIL D standard in accordance with ISO26262.
  • wheel (wheel assembly) 3 is described as “modular self-contained”, which means that the whole wheel assembly 3 is removed and replaced, even when the wheel’s tyre requires replacement or repair.
  • the removal and replacement of wheel assembly 3 from and to suspension upright 95, is relatively straightforward, as the disconnection and connection of the electrical and pneumatic conduits occurs at the interface between stub axle 105 of wheel assembly 3, and mounting face 88 of suspension upright 95, as part of the wheel assembly 3 removal and or replacement.
  • Fig. 14 depicts such a second embodiment of a wheel/ tyre assembly 153, having pneumatic brake 90 disposed internally therein, in a similar fashion to the wheel assembly 3 of the first embodiment.
  • This wheel/tyre assembly 153 has a stub axle 155, like the stub axle 105 of the first embodiment, and has utility conduits, namely pneumatic conduit 110c and electrical conduit HOd passing through stub axle 155, capable of attachment to suspension upright 95 of the first embodiment, so that pneumatic conduit 110c and electrical conduit HOd on stub axle 155, can be interconnected with pneumatic conduit 120a and electrical conduit 120b on suspension upright 95.
  • Wheel/tyre assembly 153 has two roller bearings, namely an inboard bearing 145 and an outboard bearing 146.
  • Inboard bearing 145 having a diameter substantially smaller than the diameter of outboard bearing 146.
  • the larger outboard bearing 146 preferably has a load capacity and/or rating greater than that of the substantially smaller diameter inboard bearing 145.
  • Wheel studs 157 are disposed within the inner diameter of outboard bearing 146.
  • suspension arrangement of the above described first embodiment may differ in alternative embodiments of the present invention.
  • the suspension upright 95 of the first embodiment may be referred to as a “hub carrier” or a “knuckle”.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

Un ensemble roue orientable destiné à un véhicule électrique comprend un moyeu solidaire d'un moteur électrique, un demi-essieu doté d'une extrémité libre et des paliers, montés amovibles sur un montant de suspension. Un premier conduit polyvalent passe à travers le demi-essieu pour être relié à un second conduit polyvalent à l'intérieur du montant de suspension. Le montant de suspension présente un alésage en son sein, une face de montage interne étant opposée à une extrémité ouverte correspondante, et lorsque l'ensemble roue est monté sur le montant de suspension, le demi-essieu est introduit par l'intermédiaire de l'extrémité ouverte de l'alésage pour y être disposé. Des éléments de fixation amovibles à l'intérieur du montant de suspension s'étendent par l'intermédiaire de premières ouvertures dans la face de montage pour venir en prise avec des secondes ouvertures dans l'extrémité libre du demi-essieu, et le premier conduit polyvalent est relié au second conduit polyvalent au niveau de l'interface entre l'extrémité libre du demi-essieu et la face de montage.
PCT/AU2022/051213 2021-10-09 2022-10-07 Ensemble roue et montant de suspension pour véhicule électrique WO2023056531A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2021903245A AU2021903245A0 (en) 2021-10-09 A wheel assembly for an electric vehicle
AU2021903245 2021-10-09

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WO2023056531A1 true WO2023056531A1 (fr) 2023-04-13

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327034A (en) * 1992-07-14 1994-07-05 Hydro-Quebec Electrically motorized wheel assembly
US20100163323A1 (en) * 2007-05-18 2010-07-01 Michael Frederick Pickholz Road wheel propulsion apparatus and method of making
US20140125205A1 (en) * 2011-03-09 2014-05-08 Volvo Lastvagnar Ab Wheel hub motor arrangement
US20160149357A1 (en) * 2013-07-04 2016-05-26 Nissan Motor Co., Ltd. Motor power feed wiring routing structure for in-wheel motor driven wheel
US20170110933A1 (en) * 2014-06-05 2017-04-20 Valeo Systemes De Controle Moteur Stator assembly for wheel motor and stub axle support therefor
US20170227382A1 (en) * 2015-09-17 2017-08-10 Pacific Industrial Co., Ltd. Wheel assembly rotational position identifying apparatus
WO2017175409A1 (fr) * 2016-04-06 2017-10-12 Ntn株式会社 Structure de câblage pour ligne d'alimentation de moteur-roue, et dispositif d'entraînement de moteur-roue
US20200290450A1 (en) * 2017-07-20 2020-09-17 E-Traction Europe B.V. In-wheel electric motor provided with a control system
WO2020201986A1 (fr) * 2019-03-29 2020-10-08 Protean Electric Limited Système de suspension à deux bras de suspension triangulaires pour un moteur électrique dans une roue

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327034A (en) * 1992-07-14 1994-07-05 Hydro-Quebec Electrically motorized wheel assembly
US20100163323A1 (en) * 2007-05-18 2010-07-01 Michael Frederick Pickholz Road wheel propulsion apparatus and method of making
US20140125205A1 (en) * 2011-03-09 2014-05-08 Volvo Lastvagnar Ab Wheel hub motor arrangement
US20160149357A1 (en) * 2013-07-04 2016-05-26 Nissan Motor Co., Ltd. Motor power feed wiring routing structure for in-wheel motor driven wheel
US20170110933A1 (en) * 2014-06-05 2017-04-20 Valeo Systemes De Controle Moteur Stator assembly for wheel motor and stub axle support therefor
US20170227382A1 (en) * 2015-09-17 2017-08-10 Pacific Industrial Co., Ltd. Wheel assembly rotational position identifying apparatus
WO2017175409A1 (fr) * 2016-04-06 2017-10-12 Ntn株式会社 Structure de câblage pour ligne d'alimentation de moteur-roue, et dispositif d'entraînement de moteur-roue
EP3441251A1 (fr) * 2016-04-06 2019-02-13 NTN Corporation Structure de câblage pour ligne d'alimentation de moteur-roue, et dispositif d'entraînement de moteur-roue
US20200290450A1 (en) * 2017-07-20 2020-09-17 E-Traction Europe B.V. In-wheel electric motor provided with a control system
WO2020201986A1 (fr) * 2019-03-29 2020-10-08 Protean Electric Limited Système de suspension à deux bras de suspension triangulaires pour un moteur électrique dans une roue

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