CN106740057B

CN106740057B - Spare electric wheel and remote controller for vehicle

Info

Publication number: CN106740057B
Application number: CN201610570204.8A
Authority: CN
Inventors: 武君
Original assignee: Shenzhen Dousuo Technology Co ltd
Current assignee: Shenzhen Dousuo Technology Co ltd
Priority date: 2016-07-18
Filing date: 2016-07-18
Publication date: 2022-06-03
Anticipated expiration: 2036-07-18
Also published as: CN106740057A

Abstract

The invention is applicable to the field of wheels, and provides a spare electric wheel (100) of a vehicle and a remote controller (900). The vehicle standby electric wheel (100) comprises a fixed hub (20), a rotating hub (30), a tire (10), a driving motor (40) for driving the rotating hub (30) to rotate, and a battery and a controller (60). A spare electric wheel (100) for a vehicle can be mounted on an axle (301) of an existing vehicle (300) by providing a fixed hub (20), rotating the hub (30), and mounting a tire (10) on the rotating hub (30). The battery, the controller (60) and the driving motor (40) are arranged, and the driving motor drives the rotating hub to rotate, so that when the vehicle is in failure, the standby electric wheel of the vehicle can be directly used for driving the vehicle to run. The remote controller can be conveniently controlled by a driver to use the vehicle with the spare electric wheels.

Description

Spare electric wheel and remote controller for vehicle

Technical Field

The invention belongs to the field of wheels, and particularly relates to a spare electric wheel of a vehicle and a remote controller.

Background

When an automobile runs, the automobile cannot run due to damage of tires, fuel exhaustion or engine failure and the like. But also can not go to a gas station for refueling or a maintenance point for maintenance. When meeting this kind of problem at present, all need drag with the help of the trailer, and use the trailer to need wait for a long time to go round still can lead to the trailer can't arrive because of the road surface condition of blocking up, and influence the normal use on road surface for a long time, the life of giving people and the trip brings very big inconvenience.

Disclosure of Invention

The invention aims to provide a spare electric wheel of a vehicle, and aims to solve the problems that when the existing automobile is in fault during running, the existing automobile needs to be towed by a trailer and needs to wait for a long time.

The invention is realized in such a way that the standby electric wheel of the vehicle comprises a fixed hub connected with an axle, a rotating hub arranged on the fixed hub, a tire sleeved on the rotating hub, a driving motor used for driving the rotating hub to rotate, and a battery and a controller used for providing power for the driving motor and controlling the driving motor to work; an accommodating cavity is formed between the rotating hub and the fixed hub, and the driving motor, the battery and the controller are installed in the accommodating cavity.

The invention realizes the connection with the axle by arranging the fixed hub, the rotating hub is arranged on the fixed hub, and the tire is arranged on the rotating hub, so that the spare electric wheel of the vehicle can be arranged on the axle of the existing vehicle and further can be used as a spare wheel. And install battery and controller and driving motor in the holding chamber that forms between fixed wheel hub and rotation wheel hub, drive through driving motor and rotate the wheel hub and rotate, then when the vehicle meets the trouble, can directly use the reserve electric wheel of this vehicle to drive the vehicle and travel to need not the trailer and pull, and then also need not long-time waiting.

Another object of the present invention is to provide a remote controller for controlling a vehicle using the vehicle spare electric wheel as described above, wherein at least one pair of the front and rear pairs of wheels of the vehicle is the vehicle spare electric wheel, comprising:

the direct current power supply module is used for providing electric energy;

a forward-reverse control module for determining whether the vehicle is moving forward or backward;

the speed brake control module is used for controlling the speed and the brake of the standby electric wheel of the vehicle;

a turning control module for controlling the vehicle to turn;

the electronic differential module obtains the rotating speed of two wheels through differential operation according to control signals given by the forward and backward control module, the speed brake control module and the turning control module, and gives a left wheel instruction for controlling the left wheel of the vehicle to operate and a right wheel instruction for controlling the right wheel of the vehicle to operate;

and the wireless communication module is used for respectively sending the left wheel instruction and the right wheel instruction to the left wheel and the right wheel of the vehicle.

The invention controls the front pair or the rear pair of the standby electric wheels of the vehicle used on the vehicle through the remote controller so as to conveniently control the vehicle to run.

Drawings

Fig. 1 is a schematic perspective view of a spare electric wheel of a vehicle according to an embodiment of the present invention;

FIG. 2 is a front internal schematic view of the vehicle spare electric wheel of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an exploded schematic view of the spare electric wheel of the vehicle of FIG. 1;

FIG. 5 is a schematic perspective view of the spare electric wheel of the vehicle of FIG. 1, partially in section;

fig. 6 is a schematic block diagram of the driving of the spare electric wheel of the vehicle of fig. 1.

FIG. 7 is a schematic front view of an internal structure of a spare electric wheel of a vehicle according to a second embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 7;

FIG. 9 is an exploded schematic view of the spare electric wheel of the vehicle of FIG. 7;

fig. 10 is a schematic perspective view of the spare electric wheel of the vehicle of fig. 7 in partial section.

Fig. 11 is a schematic front view of an internal structure of a spare electric wheel of a vehicle according to a third embodiment of the present invention;

FIG. 12 is a cross-sectional structural view taken along line C-C of FIG. 11;

FIG. 13 is an exploded schematic view of the spare electric wheel of the vehicle of FIG. 11;

fig. 14 is a schematic perspective view of the vehicle spare electric wheel of fig. 11 in partial cross-section.

Fig. 15 is a schematic circuit block diagram of a remote controller according to an embodiment of the present invention.

Fig. 16 is a schematic view of a vehicle spare electric wheel and remote controller according to an embodiment of the present invention installed in a vehicle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

The embodiment of the invention provides a spare electric wheel of a vehicle, which comprises a fixed hub, a rotating hub, a tire, a driving motor, a battery and a controller, wherein the fixed hub is used for being connected with an axle; an accommodating cavity is formed between the rotating hub and the fixed hub, and the driving motor, the battery and the controller are installed in the accommodating cavity.

Through setting up fixed wheel hub to the realization links to each other with the axletree, installs rotation wheel hub on fixed wheel hub, installs the tire on rotation wheel hub, so that this vehicle reserve electric wheel can install on the axletree of current vehicle, and then can regard as reserve wheel to use. And install battery and controller and driving motor in the holding chamber that forms between fixed wheel hub and rotation wheel hub, drive through driving motor and rotate the wheel hub and rotate, then when the wheel meets the trouble, can use the reserve electric wheel of this vehicle with two front wheels or two rear wheels of vehicle, and then can use the remote controller to control the vehicle and travel to need not the trailer and pull, and then also need not to wait for a long time.

Referring to fig. 1-6, a first embodiment of a backup electric wheel 100 for a vehicle according to the present invention:

a vehicle backup electric wheel 100 includes a stationary hub 20, a rotating hub 30, a tire 10, a drive motor 40, and a battery and controller 60; the tire 10 is fitted over a rotating hub 30, and the rotating hub 30 is mounted on a fixed hub 20 so that the rotating hub 30 can rotate on the fixed hub 20. Referring also to fig. 16, a stationary hub 20 is adapted to be connected to an axle 301 so that the vehicle spare electric wheel 100 may be mounted on the axle 301 of the vehicle 300 for use as a spare wheel. A receiving cavity 201 is formed between the rotating hub 30 and the fixed hub 20, so that the driving motor 40 and the battery and controller 60 can be installed in the receiving cavity 201, so that the battery and controller 60 can supply power to the driving motor 40, and at the same time, the driving motor 40 is controlled to operate, so that the driving motor 40 drives the rotating hub 30 to rotate. When the wheels are in failure, two front wheels or two rear wheels of the vehicle 300 can be used as the standby electric wheels 100 of the vehicle, and then the vehicle 300 can be controlled to run by using the remote controller 900, so that the traction of a trailer is not needed, and the long-time waiting is also not needed.

Referring to fig. 1, the shape, size and hub mounting dimension of the spare electric wheel 100 of the vehicle are the same as those of the original wheel, so that the spare electric wheel 100 of the vehicle is directly fixed on the original axle 301 by using the original mounting position and the fastening screw 29 without any modification of the vehicle 300.

Referring to fig. 2-5, the driving motor 40 includes a motor shaft 41, a stator 42 and a rotor 43, the stator 42 is mounted on the motor shaft 41, and the rotor 43 surrounds the stator 42; the rotor 43 is sleeved with an external gear 45, the external gear 45 is fixedly connected with the rotor 43, the motor shaft 41 is installed on the fixed hub 20, and the rotating hub 30 is provided with an internal gear 311 meshed with the external gear 45. The motor shaft 41 is mounted on the stationary hub 20 to support the driving motor 40 through the stationary hub 20. When the rotor 43 rotates, the outer gear 45 is driven to rotate, and the inner gear 311 is driven to rotate, so as to drive the rotating hub 30 to rotate.

Further, a plurality of driving motors 40 are provided, and each driving motor 40 is provided with an external gear 45. The plurality of driving motors 40 are arranged, and the plurality of driving motors 40 drive the rotating hub 30 together, so that the occupied space can be reduced, the power can be improved, and the reliability can be improved (namely, the wheel can still be used when the individual motor damages the wheel). In this embodiment, five drive motors 40 are provided, and in other embodiments, other numbers of drive motors 40, such as six, four, etc., may be provided. Further, the plurality of driving motors 40 are uniformly distributed around the axial direction of the fixed hub 20, so that the fixed hub 20 and the rotating hub 30 are uniformly stressed, the vibration of the backup electric wheel 100 of the vehicle during running is reduced, and the running stability of the backup electric wheel 100 of the vehicle is improved.

Further, there are a plurality of batteries and controllers 60, and a plurality of batteries and controllers 60 are provided to provide more electric energy, so as to improve the cruising ability of the vehicle backup electric wheel 100. The alternate arrangement of the battery and controller 60 and the driving motor 40 can make the radial parts of the backup electric wheel 100 of the vehicle have uniform weight, reduce the vibration when the backup electric wheel 100 of the vehicle runs, and improve the running stability of the backup electric wheel 100 of the vehicle.

Further, the spare electric wheel 100 for a vehicle further includes a first supporting plate 21 and a second supporting plate 22, the first supporting plate 21 and the second supporting plate 22 are respectively installed at both sides of the fixed hub 20, one end of the motor shaft 41 is supported by the first supporting plate 21, and the other end of the motor shaft 41 is supported by the second supporting plate 22, so that the driving motor 40 is stably supported on the fixed hub 20.

In this embodiment, first supporting disk 21 and fixed hub 20 integrated into one piece, the convenient processing preparation improves the joint strength and the fastness of first supporting disk 21 and fixed hub 20. In other embodiments, the first supporting disk 21 may be fixed to the fixing hub 20 by screws. The second support plate 22 is fixed to the fixing hub 20 by screws 229.

Further, the first supporting plate 21 is provided with a positioning opening 215 for matching and positioning the battery and the controller 60. A positioning opening 215 is provided on the first support plate 21 to facilitate mounting and fixing of the battery and the controller 60.

Further, the rotating hub 30 includes a rim 31, a first disk 32 and a second disk 33, and the first disk 32 and the second disk 33 are fixedly connected to the rim 31. The rim 31 is used to support the tire 10, and the tire 10 is mounted on the rim 31. The first wheel disc 32 and the second wheel disc 33 are both fixedly connected with the rim 31, the first wheel disc 32 is installed on one side of the fixed hub 20, and the second wheel disc 33 is installed on the other side of the fixed hub 20, so that the rim 31 is supported on the fixed hub 20, and the accommodating cavity 201 is formed between the rotating hub 30 and the fixed hub 20. Specifically, the first and

second disks

32 and 33 may each be fixedly attached to the rim 31 by screws 39. Specifically, in the present embodiment, the inner gear 311 and the rim 31 are integrally formed, so as to facilitate the manufacturing process. In other embodiments, the inner gear 311 may be separately manufactured and fixedly connected to the rim 31. When the inner gear 311 is separately manufactured, the inner gear 311 is also fixedly connected to the first disk 32 or/and the second disk 33.

Further, the internal gear 311 is located at one side of the rim 31 so that the first and

second disks

32 and 33 and the fixed hub 20 are located at a position close to one side of the rim 31, so that the external mounting structure of the spare electric wheel 100 of the vehicle is the same as that of the existing ordinary wheel, thereby facilitating the spare electric wheel 100 of the vehicle to be used as a spare wheel.

Further, the spare electric wheel 100 of the vehicle further includes a first bearing 34 supporting the first wheel disc 32, and the first bearing 34 is sleeved on the fixed hub 20. The first bearing 34 is provided to allow the rotating hub 30 to flexibly rotate on the fixed hub 20, thereby reducing friction and increasing the lifespan.

Further, in the present embodiment, since the first supporting disk 21 and the fixed hub 20 are integrally formed, the accommodating ring 23 is disposed on a side of the fixed hub 20 close to the first supporting disk 21 to accommodate the first bearing 34. Further, the structure can connect the first supporting disc 21 with the middle of the fixed hub 20, and fixedly connect the second supporting disc 22 with the first supporting disc 21, so that the fixed hub 20 is axially stressed at the middle of the fixed hub 20, and the stress is uniform.

Similarly, this reserve electric wheel 100 of vehicle still includes second bearing 35, and second bearing 35 cover device is on fixed wheel hub 20, and second bearing 35 installs in second rim plate 33, supports second rim plate 33 through second bearing 35 to make rotatory hub 30 can rotate on fixed wheel hub 20 in a flexible way, reduce frictional force, increase of service life.

Further, in the present embodiment, the first bearing 34 and the second bearing 35 are both needle roller bearings to reduce friction force and increase flexibility.

Further, the first supporting disk 21 is provided with a first convex ring 211 supporting one side of the external gear 45, and the second supporting disk 22 is provided with a second convex ring 221 supporting the other side of the external gear 45. The first and second convex rings 211 and 221 are provided to more stably support the outer gear 45 and to better keep the outer gear 45 smoothly rotated.

Furthermore, the first protruding ring 211 is sleeved with a first motor bearing 212, and the second protruding ring 221 is sleeved with a second motor bearing 222. The first motor bearing 212 and the second motor bearing 222 are provided to reduce friction force, so that the rotor 43 of the driving motor 40 and the outer gear 45 can rotate more flexibly, abrasion can be reduced, and the service life can be prolonged. Specifically, the first motor bearing 212 and the second motor bearing 222 may be PTFE sliding bearings or needle roller bearings. Polytetrafluoroethylene (PTFE, abbreviated).

Referring to fig. 2 and 6, the battery and controller 60 includes: a battery package 62 for providing the electric energy, be used for control the speed brake control circuit 64 of driving motor 40 functioning speed for receive with send monitoring signal, and send to speed brake control circuit 64's wireless communication circuit 65 is used for receiving speed brake control circuit 64's control signal controls the drive protection circuit 63 that driving motor 40 ran, and be used for detecting driving motor 40's running state, and feed back to speed brake control circuit 64 with wireless communication circuit 65's detection feedback circuit 67.

The battery pack 62 may power the drive motor 40 and the controller. The battery pack 62 may be a battery, a lithium battery, or the like that can supply power to the driving motor. The wireless communication circuit 65 is used for communicating with the remote controller 900 and receiving the running control signals of each wheel sent by the remote controller; for a vehicle using a left and right pair of spare electric wheels 100, the control signals for the left and right wheels are different due to the function of the electronic differential, and the communications are distinguished by the address codes of the wheels, respectively. After receiving the control signal from the remote controller 900, the wireless communication circuit 65 sends the control signal to the speed brake control circuit 64, and adjusts the speed through the speed brake control circuit 64, and then sends a control signal to the driving protection circuit 63 to control the driving motor 40 to operate. Specifically, the drive protection circuit 63 is a BLDC drive protection circuit, and the drive motor 40 is a BLDC motor. The BLDC is a Brushless Direct Current Motor (BLDCM), and in other embodiments, a permanent magnet dc Motor, an asynchronous Motor, or a permanent magnet synchronous Motor and a corresponding driving protection circuit may also be used. The detection feedback circuit 67 is used for detecting the operation state of the driving motor 40, and can feed back the operation state of the driving motor 40, such as signals of motor rotation speed, current, voltage and the like, to the speed brake control circuit 64, so that the rotation speed of the driving motor 40 accords with a given rotation speed, and simultaneously can feed back to the wireless communication circuit 65, and further the remote controller 900, so as to facilitate the monitoring of a driver. Further, the detection feedback circuit 67 detects fault signals such as overcurrent, overheat, overvoltage, undervoltage and the like, and can feed back the fault signals to the drive protection circuit 63 for alarming, current limiting and shutdown protection, and the alarm signals can be transmitted to the remote controller 900 or a server for displaying through infinite transmission.

Further, the battery and controller 60 further includes a charging interface 61 to facilitate charging of the battery pack 62. Further, the wireless communication circuit 65 is provided with an antenna circuit 66.

Referring to fig. 7-10, a second embodiment of a backup electric wheel 100b for a vehicle according to the present invention:

the vehicle backup electric wheel 100b of the present embodiment differs from the vehicle backup electric wheel of the first embodiment in that:

in this embodiment, the driving motor 40b includes a stator 42b and a rotor 43b, the stator 42b surrounds the fixed hub 20b, the rotor 43b surrounds the stator 42b, the rotor 43b is fixedly connected to the rotating hub 30b, and the stator 42b is connected to the fixed hub 20b, so that when the rotor 43b rotates, the rotating hub 30b can be driven to rotate.

Further, the battery and controller 60b is plural, and the windings of the stator 42b are alternately arranged with the battery and controller 60 b. Generally, the windings of the stator 42b are wound around the T-shaped teeth of the stator, and the teeth and windings of the stator 42b alternate with the battery and controller 60 b. The provision of a plurality of batteries and controllers 60b allows for the full use of space to provide more power, increasing the range and safety redundancy of the vehicle's spare electric wheel 100 b. The alternate arrangement of the windings of the battery and controller 60b and the stator 42b can make the radial parts of the backup electric wheel 100b of the vehicle have uniform weight, reduce the vibration when the backup electric wheel 100b of the vehicle runs, and improve the running stability of the backup electric wheel 100b of the vehicle.

Further, the fixing boss 20b is provided with a fixing bracket 25b for fixing each battery and the controller 60 b. A fixing frame 25b is provided on the fixing boss 20b to facilitate mounting and fixing of each battery and the controller 60 b.

In this embodiment, the stator 42b is formed by punching and laminating magnetic conductive sheets, and then is mounted on the fixed hub 20 b. In other embodiments, the stator 42b may be mounted on the ring body and then secured to the stationary hub 20 b.

In this embodiment, the structure of the rotating hub 30b is similar to that of the rotating hub in the first embodiment, the rotating hub 30b also includes a rim 31b, a first disk 32b and a second disk 33b, and both the first disk 32b and the second disk 33b are fixedly connected to the rim 31 b. The rim 31b is for supporting the tire 10b, and the tire 10b is mounted on the rim 31 b. The first disk 32b and the second disk 33b are fixedly connected to the rim 31b, the first disk 32b is mounted on one side of the fixed hub 20b, and the second disk 33b is mounted on the other side of the fixed hub 20b to support the rim 31b on the fixed hub 20b, so that a receiving cavity 201b is formed between the rotating hub 30b and the fixed hub 20 b. Specifically, the first and

second disks

32b, 33b may each be fixedly attached to the rim 31b by screws 39 b.

The structure of the rotating hub 30b of the present embodiment differs from that of the rotating hub of the first embodiment in that: the rotor 43b is directly mounted in the rim 31 b.

Further, the rotor 43b is located on one side of the rim 31b, so that the first and

second disks

32b, 33b and the fixed hub 20b are located close to one side of the rim 31b, so that the external mounting structure of the spare electric wheel 100b of the vehicle is the same as that of the existing ordinary wheel, and the spare electric wheel 100b of the vehicle is conveniently used as a spare wheel.

Specifically, in the present embodiment, the first bearing 34b and the second bearing 35b are sliding bearings to better support the first wheel disc 32b and the second wheel disc 33 b. The sliding bearing may be a PTFE sliding bearing. In other embodiments, the first bearing 34b and the second bearing 35b may be other bearings, such as rolling bearings.

The other structures of the vehicle backup electric wheel 100b of the present embodiment are the same as those of the vehicle backup electric wheel of the first embodiment, and are not redundant here.

Referring to fig. 11-14, a third embodiment of a backup electric wheel 100c for a vehicle according to the present invention is shown:

the vehicle backup electric wheel 100c of the present embodiment differs from the vehicle backup electric wheel of the first embodiment in that:

in this embodiment, the driving motor 40c includes a motor shaft 41c, a stator 42c and a rotor 43c, the stator 42c is mounted on the motor shaft 41c, and the rotor 43c surrounds the stator 42 c; the rotor 43c is sleeved with an external gear 45c, the external gear 45c is fixedly connected with the rotor 43c, the motor shaft 41c is installed on the rotating hub 30c, and the fixed hub 20c is annularly provided with an external gear 24c meshed with the external gear 45 c. The motor shaft 41c is mounted on the rotation hub 30c to support the driving motor 40c through the rotation hub 30 c. When the rotor 43c rotates, the external gear 45c is driven to rotate, and the external gear 45c is matched with the external gear 24c, so that the external gear and the external gear 24c can rotate relatively, the driving motor 40c and the rotating hub 30c rotate simultaneously, and the driving motor 40c drives the rotating hub 30c to rotate.

Further, the driving motor 40c is plural, and each driving motor 40c is provided with an external gear 45 c. A plurality of driving motors 40c are provided, and the plurality of driving motors 40c drive the rotating hub 30c together, thereby improving power. In this embodiment, five driving motors 40c are provided, and in other embodiments, other numbers of driving motors 40c, such as six, four, etc., may be provided. Further, the plurality of driving motors 40c are uniformly distributed around the axis of the fixed hub 20c, so that the fixed hub 20c and the rotating hub 30c are uniformly stressed, the vibration of the backup electric wheel 100c of the vehicle during running is reduced, and the running smoothness of the backup electric wheel 100c of the vehicle is improved.

Further, the battery and controller 60c is plural, and the battery and controller 60c is fixed to the rotation hub 30 c. A plurality of batteries and controllers 60c are provided to take full advantage of space, provide more power, and improve the range of the vehicle's spare electric wheel 100 c. The battery and controller 60c and the driving motor 40c are alternately arranged, so that the weight of each radial part of the vehicle standby electric wheel 100c is uniform, the vibration of the vehicle standby electric wheel 100c during running is reduced, and the running stability of the vehicle standby electric wheel 100c is improved.

In this embodiment, the structure of the rotating hub 30c is similar to that of the rotating hub 30c in the first embodiment, the rotating hub 30c also includes a rim 31c, a first disk 32c and a second disk 33c, and both the first disk 32c and the second disk 33c are fixedly connected to the rim 31 c. The rim 31c is used to support the tire 10c, and the tire 10c is mounted on the rim 31 c. The first disk 32c and the second disk 33c are fixedly connected to the rim 31c, the first disk 32c is mounted on one side of the fixed hub 20c, and the second disk 33c is mounted on the other side of the fixed hub 20c to support the rim 31c on the fixed hub 20c, so that the accommodating cavity 201 is formed between the rotating hub 30c and the fixed hub 20 c. Specifically, the first disk 32c and the second disk 33c may be fixedly attached to the rim 31c by screws.

Furthermore, the first wheel 32c and the second wheel 33c are respectively provided with positioning slots for supporting the battery and the controller 60 c. To facilitate mounting and securing the battery to the controller 60 c.

The structure of the rotating hub 30c of the present embodiment differs from that of the first embodiment in that:

the driving motor 40c is mounted on the rotating hub 30c, and specifically, the motor shaft 41c is supported by the first and

second discs

32c and 33c, and the driving motor 40c is mounted on the rotating hub 30 c.

Further, in the present embodiment, the external gear 24c and the fixed hub 20c are integrally formed, so as to facilitate the manufacturing and increase the connection strength. In other embodiments, the external gear 24c may be separately formed and then secured to the stationary hub 20 c.

Further, the fixed hub 20c is located at one side of the rim 31c so that the outer mounting structure of the spare electric wheel 100c of the vehicle is the same as that of the existing ordinary wheel to facilitate the spare electric wheel 100c of the vehicle to be used as a spare wheel.

Further, in this embodiment, the spare electric wheel 100c of the vehicle also includes a first bearing 34c supporting the first wheel disc 32c, and the first bearing 34c is mounted on the fixed hub 20 c. The first bearing 34c is provided to allow the rotating hub 30c to flexibly rotate on the fixed hub 20c, thereby reducing friction and prolonging the service life.

Similarly, in this embodiment, the backup electric wheel 100c of the vehicle also includes a second bearing 35c, the second bearing 35c is sleeved on the fixed hub 20c, the second bearing 35c is installed in the second wheel disc 33c, and the second wheel disc 33c is supported by the second bearing 35c, so that the rotating hub 30c can flexibly rotate on the fixed hub 20c, the friction force is reduced, and the service life is prolonged.

Further, in the present embodiment, the first bearing 34c and the second bearing 35c are both needle roller bearings to reduce friction and increase flexibility.

Further, in the present embodiment, the middle portion of the external gear 24c is connected to the fixed hub 20c, and a receiving groove 26c may be formed between two sides of the external gear 24c and two sides of the fixed hub 20c, so as to receive the first bearing 34c and the second bearing 35c, which facilitates the mounting and fixing of the first bearing 34c and the second bearing 35 c.

Further, the first disc 32c is provided with a first support ring 321c supporting one side of the external gear 45c, and the second disc 33c is provided with a second support ring 331c supporting the other side of the external gear 45 c. The first and second support rings 321c and 331c are provided to more stably support the outer gear 45c and to better keep the outer gear 45c smoothly rotated.

Furthermore, the first support ring 321c and the second support ring 331c are sleeved with motor bearings 332c to reduce friction, so that the external gear 45c can rotate more flexibly, and meanwhile, abrasion is reduced, and the service life is prolonged. Specifically, the motor bearing 332c may be a ball bearing or a PTFE sliding bearing.

The other structures of vehicle spare electric wheel 100c of the present embodiment are the same as those of vehicle spare electric wheel of the first embodiment, and are not redundant here.

Referring to fig. 15 and 16, an embodiment of a remote controller 900 according to the present invention:

referring also to fig. 1, a remote controller 900 is provided for controlling a vehicle 300 using a vehicle spare electric wheel 100 as described above, and at least one of the front and rear pairs of wheels of the vehicle 300 is the vehicle spare electric wheel 100, which is divided into a left wheel and a right wheel. The remote controller 900 includes: the device comprises a direct current power supply module 91, a forward and backward control module 92, a speed brake control module 93, a turning control module 94, an electronic differential module 95, a wireless communication module 96 and an alarm display module 98. A dc power supply module 91 for supplying electric power; a forward-reverse control module 92 for controlling the vehicle 300 to move forward or reverse; the speed brake control module 93 is used for controlling the speed, the cruising speed stabilization and the braking of the standby electric wheel 100 of the vehicle; a turn control module 94 for controlling the vehicle 300 to turn; an electronic differential module 95, which obtains respective given rotation speeds of the left wheel and the right wheel through differential operation according to control signals given by the forward/backward movement control module 92, the speed brake control module 93 and the turning control module 94, and gives a left wheel instruction for controlling the left wheel of the vehicle 300 to operate and a right wheel instruction for controlling the right wheel of the vehicle 300 to operate; the wireless communication module 96 sends the left wheel command and the right wheel command to the left wheel and the right wheel of the vehicle 300 respectively. The front or rear pair of the vehicle spare electric wheels 100 used on the vehicle 300 is controlled by the remote controller 900 to facilitate the control of the vehicle 300.

Referring to fig. 6, in the specific control, the driver controls the battery and the controller 60 through the wireless communication circuit 65 on the wheel by the remote controller 900, so that the battery pack 62 provides power to the driving motor 40, the driving motor 40 realizes the forward and reverse rotation, the acceleration and deceleration and the braking, and further drives the rotating hub 30 and the tire 10 to rotate, thereby enabling the automobile to run for a period of time at emergency and low speed.

When the vehicle standby electric wheel 100 is used, the mounted axle 301 is required to be non-rotatable (such as a driven axle of a two-wheel drive vehicle), if the original axle 301 can be rotated (such as a driving axle of the two-wheel drive vehicle), the axle 301 needs to be locked (such as gear engaging and engine turning off), and the left and right vehicle standby electric wheels 100 are mounted simultaneously, so that the vehicle 300 can normally run.

Further, the remote controller 900 can enable the driver to wirelessly control the driving operations of the automobile such as forward movement, backward movement, speed increase, speed reduction, start/stop, braking, cruising and the like.

Further, the dc power module 91 of the remote controller 900 may be a disposable battery, or may be a rechargeable battery or a power source led from a cigarette lighter on a vehicle, so as to supply power to all circuits of the remote controller 900. The forward and backward movement control module 92 and the speed brake control module 93 output control signals to the electronic differential module 95, the turning control module 94 also outputs control signals to the electronic differential module 95, the electronic differential module 95 receives the control signals, obtains the due rotating speeds of the two wheels through differential speed operation, and then sends out control commands through the wireless communication module 96 to control the rotation of the two wheels.

Further, the remote controller 900 further includes an alarm display device 98, the alarm display device 98 is connected to the wireless communication module 96, so that the remote controller 900 can receive the fault feedback signal of the wheel via the wireless transmission module to display and alarm, the remote controller 900 on the vehicle 300 is further provided with eight keys of forward, backward, speed-up, speed-down, left-turn, right-turn, cruise and brake, and an alarm display screen, which can display the vehicle speed, the voltage, current, rotation speed and temperature of the driving motor 40, and the alarm signals of overvoltage, undervoltage, overcurrent, overtemperature, etc., and this function can be realized by MCU and software, FPGA (Field Programmable Gate Array), hardware logic module and ASIC module. Asic (application Specific Integrated circuit) is an acronym for application Specific Integrated circuit (asic).

Further, an antenna module 97 is connected to the wireless communication module 96 to increase signal strength.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A standby electric wheel of a vehicle is characterized by comprising a fixed hub, a rotating hub, a tire, a driving motor, a battery and a controller, wherein the fixed hub is used for being connected with an axle of the vehicle; the electric vehicle comprises a vehicle axle, a rotating hub, a fixed hub, a driving motor, a battery and a controller, wherein an accommodating cavity is formed between the rotating hub and the fixed hub, and the driving motor, the battery and the controller are installed in the accommodating cavity, so that when the vehicle standby electric wheel is installed on the vehicle axle, the vehicle standby electric wheel can directly drive the vehicle to run.

2. The vehicle spare electric wheel of claim 1, wherein the drive motor is one and includes a stator surrounding the stationary hub and a rotor surrounding the stator, the rotor being fixedly coupled to the rotating hub and the stator being coupled to the stationary hub.

3. The vehicle spare electric wheel of claim 2, wherein the battery and controller are plural and the teeth and windings of the stator alternate with the battery and controller.

4. A vehicle spare electric wheel as claimed in claim 3, wherein a mounting bracket is provided on said mounting hub for mounting each of said batteries and said controller.

5. The vehicle spare electric wheel of claim 1, wherein said drive motor includes a motor shaft, a stator coupled to said motor shaft, and a rotor surrounding said stator, said rotor having an external gear mounted thereon and fixedly coupled to said rotor, said motor shaft being mounted to said stationary hub, said rotating hub having an internal gear engaged with said external gear.

6. The vehicle spare electric wheel of claim 5, wherein said drive motor is plural and each of said drive motors is provided with said external gear.

7. The vehicle spare electric wheel of claim 6, wherein the battery and controller are plural and the battery and controller alternate with the drive motor.

8. The vehicle spare electric wheel of claim 4, further comprising a first support disc supporting one end of the motor shaft and a second support disc supporting the other end of the motor shaft, the first support disc and the second support disc being mounted on both sides of the stationary hub, respectively.

9. The vehicle spare electric wheel of claim 8, wherein the first support plate defines a positioning opening for cooperatively positioning the battery and the controller.

10. The vehicle spare electric wheel of claim 1, wherein said drive motor includes a motor shaft, a stator coupled to said motor shaft, and a rotor surrounding said stator, said rotor being sleeved with an external gear, said external gear being fixedly coupled to said rotor, said motor shaft being mounted to said rotating hub, said fixed hub being surrounded by an external gear that meshes with said external gear.

11. A vehicle spare electric wheel as claimed in claim 10, wherein said drive motor is plural and each of said drive motors is provided with said external gear.

12. A vehicle electric spare wheel according to any one of claims 1 to 11 wherein the rotating hub comprises a rim supporting the tyre, a first disc mounted on one side of the fixed hub and a second disc mounted on the other side of the fixed hub, the first and second discs each being fixedly attached to the rim.

13. The vehicle spare electric wheel of claim 7, further comprising a first bearing supporting the first wheel disc, the first bearing being journaled on the fixed hub.

14. A vehicle spare electric wheel as claimed in any one of claims 1 to 11, wherein the battery and controller comprises: the battery pack is used for providing electric energy and is used for controlling the speed brake control circuit for driving the motor running speed and braking, the wireless communication circuit is used for receiving and sending monitoring signals and sending the monitoring signals to the speed brake control circuit, the wireless communication circuit is used for receiving the control signals of the speed brake control circuit are controlled by the driving protection circuit for driving the motor to run, and the wireless communication circuit is used for detecting the running state of the driving motor and feeding back the running state of the driving motor to the speed brake control circuit.

15. A remote control for controlling a vehicle using a vehicle spare electric wheel as claimed in any one of claims 1 to 14, at least one pair of front and rear pairs of wheels of the vehicle being the vehicle spare electric wheel, comprising:

the direct current power supply module is used for providing electric energy;

the forward and backward control module is used for determining that the vehicle moves forward or backward;

a turning control module for controlling the vehicle to turn;