KR20190011882A - Generating Device Using Brake System and Generating Method thereof - Google Patents

Abstract

The present invention relates to an apparatus and a method for generating power by using a brake system, the apparatus and the method being implemented so as to utilize energy generated during travel as reserve power of a vehicle dashboard, headlights and the like by using rotational motion of a brake rotor provided at a vehicle wheel, and the apparatus comprises: a circular plate-shaped disk rotor connectively provided to the vehicle wheel so as to rotate with the wheel; a caliper mounted and provided at one side of the disk rotor so as to enable a brake pad to come in close contact with the disk rotor in order to brake a vehicle; a plurality of permanent magnets mounted and provided at the disk rotor; and a power generation coil mounted and provided at the caliper so as to convert, into electrical energy, the kinetic energy of the permanent magnets rotating with the disk rotor, thereby enabling electricity to be harvested.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a generator system using a brake system,

The present invention relates to a power generation apparatus and a power generation method using a brake system, and more particularly, to a power generation apparatus and a power generation method using a brake system, and more particularly, The present invention relates to a power generation apparatus and a power generation method using one brake system.

Energy harvesting technology refers to a technology that collects and uses various energy sources efficiently. A device that converts light such as photovoltaic power into electric energy can extract sunlight or illumination light as energy. It is used to convert the energy source generated in everyday life such as vibration of car tires and motors into electric energy.

Among the various energy sources, the present invention uses a method of harvesting energy using an electromagnetic phenomenon. It converts kinetic energy into electrical energy and generates alternative energy instead of fuel for the automobile to produce electricity. Alternative energy, which is being actively developed in advanced countries, has been actively developed, and solar energy and wind energy are the main types of alternative energy, and alternate energy using a small amount of energy generated in daily life is actively being developed.

When a coil and a magnet move relative to each other, a magnetic field is formed by the motion, and a current flows through the coil. This phenomenon is referred to as electromagnetic induction. The current generated by electromagnetic induction is called induction current, and the electromotive force generated at both ends of coil is called induction electromotive force. The induction current is generated only by the mutual motion between the coil and the magnet, and does not occur in the stationary state.

Energy harvesting technology has been actively researched and developed for energy harvesters that are combined with nanotechnology and system-on-chip (SoC) technology, but research on energy generation methods is still insufficient.

In the automotive field, energy efficiency can be improved by reusing energy that is lost when the vehicle moves. In particular, the electric car industry is powered by electrical energy and can be supplied with energy from the rotating body.

Korean Patent Laid-Open No. 10-2010-0119704 (Nov. 10, 2010) discloses a generator in which a field magnet for a bicycle or a motorcycle is a permanent magnet, and a stator is appropriately spaced from the rotor (including attachment and detachment) The present invention relates to a disc brake generator capable of adjusting a physical load in accordance with an amount of power generation. In this method, a gap between the disc rotor and a rotor is adjusted by adjusting or removing a stator, . According to the disclosed technology, there is an effect that a physical load such as a rolling friction of a bearing due to rotation of the rotor is not generated by providing a rotor integrated with a disk brake loader rotating together with a wheel of a bicycle or integrated with a separate rotating plate, The physical load can be adjusted by appropriately separating (attaching and detaching) the stator from the rotor in accordance with the need for power generation.

Korean Unexamined Patent Application Publication No. 10-2010-0050942 (Apr. 14, 2010) discloses a tire inflated with air acting as a shock absorber in a vehicle such as an automobile, a motorcycle, a bicycle, etc., Discloses an electric power generating wheel capable of producing electric energy in an environmentally friendly manner to improve the efficiency of electric energy. The present invention relates to a wheel which is mainly used in a vehicle such as an automobile, a motorcycle, a bicycle, and the like, in which an electric power generating plate that generates electricity when pressure is applied rotates the wheels, The pressure of the air injected into the tire is formed by the tire which is elastic due to the external pressure and the pressure of the electric power generating plate is applied by the air pressure And the electricity generating plate generates electricity.

In the conventional power generation apparatus using wheels, when the driving means is traveling at high speed, the rotation speed of the wheels is high, so that the power generation efficiency is increased to increase the power production amount. However, when the traveling speed is decreased, The power generation efficiency is also reduced and the power generation amount is reduced.

Korean Patent Publication No. 10-2010-0119704 Korean Patent Publication No. 10-2010-0050942

One aspect of the present invention provides a power generation apparatus and a power generation method using a brake system that utilizes energy generated during traveling using rotational motion through a homogeneous wheel brake rotor as spare power for a dashboard and a headlight of an automobile.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

A power generation apparatus using a brake system according to an embodiment of the present invention includes: a disc rotor in the form of a disc, which is connected to a wheel of the vehicle and rotates together with the wheel; A caliper mounted on one side of the disk rotor to closely contact the brake pads with the disk rotor to brake the vehicle; A plurality of permanent magnets mounted on the disk rotor; And a generator coil mounted on the caliper to convert kinetic energy of the permanent magnet rotating together with the disk rotor into electrical energy to harvest electricity.

In one embodiment, the disk rotor may be provided with a plurality of mounting grooves along the outer side for mounting and mounting the permanent magnets.

In one embodiment, the mounting groove may be formed at a position facing the power generation coil.

In one embodiment, the mounting groove may be formed in an elongated circular shape along the portion where the brake pad is closely contacted.

In one embodiment, the mounting groove may be formed on the inner side of the portion where the brake pad is in close contact.

In one embodiment, the caliper may include one or more pistons for causing the brake pads to come into close contact with the disk rotor by hydraulic pressure.

In one embodiment, the power generation coil may be mounted between the piston and the brake pad.

In one embodiment, as the piston pushes the brake pad by the hydraulic pressure, the generating coil approaches the permanent magnet, and the power generation efficiency can be improved.

In one embodiment, the power generation coil may have a helical structure or a spiral structure.

In one embodiment, the tire may further include a wheel mounted on the outside and connected to the disk rotor.

In one embodiment, the wheel may be mounted with a plurality of permanent magnets in the inner tire rim.

In one embodiment, the wheel may have a plurality of permanent magnets mounted on the outer side of the wheel hub connected to the disk rotor.

The brake pad may further include a thermoelectric element mounted on the inner side of the brake pad so as to receive heat energy generated from the brake pad when the vehicle is braked and convert it into electric energy to harvest electricity.

The brake pad may further include a piezoelectric element mounted on the inner side of the brake pad so as to receive the compression energy generated from the brake pad when the vehicle is braked and convert it into electrical energy to harvest electricity.

In one embodiment, the power generation unit may further include a boost unit connected to the power generation coil, for boosting the electricity harvested from the power generation coil.

In one embodiment, the power generation coil can store the harvested electricity in a battery for a vehicle.

A power generation apparatus using a brake system according to an embodiment of the present invention includes: a disc rotor in the form of a disc, which is connected to a wheel of the vehicle and rotates together with the wheel; A caliper mounted on one side of the disk rotor to closely contact the brake pads with the disk rotor to brake the vehicle; A plurality of permanent magnets mounted on the disk rotor; A generator coil mounted on the caliper so as to convert kinetic energy of the permanent magnet rotating together with the disk rotor into electrical energy to harvest electricity; A wheel mounted on the outer side of the tire and connected to the disk rotor; A thermoelectric element mounted on the inner side of the brake pad so as to receive heat energy generated from the brake pad when the vehicle is braked and convert it into electric energy to harvest electricity; And a step-up portion connected to the power generation coil for receiving the electric power harvested from the power generation coil to increase the voltage, wherein the disk rotor has a mounting groove for mounting the permanent magnet, Wherein the caliper has one or two or more pistons for closely contacting the brake pads with the disc rotor by hydraulic pressure, and the power generating coil is disposed between the piston and the brake pads Wherein the power generating coil has a helical structure or a spiral structure by increasing the distance between the piston and the permanent magnet as the piston presses the brake pad by hydraulic pressure, Wherein the wheel has a plurality of permanent magnets mounted on an inner tire rim, A plurality of permanent magnets may be mounted on the outer side of the wheel hub connected to the disk rotor.

According to an embodiment of the present invention, there is provided a method of generating power using a braking system including rotating a disk-shaped disk rotor having a permanent magnet mounted thereon; And converting the kinetic energy of the permanent magnet, which rotates together with the disc rotor, into electrical energy, and harvesting electricity, in a power generation coil mounted on a caliper for braking the vehicle.

According to an embodiment of the present invention, the power generation unit may further include a step-up unit connected to the power generation coil to receive and boost the electricity harvested from the power generation coil.

In one embodiment, the generating coil may further include storing the harvested electricity in a battery for a vehicle.

According to an aspect of the present invention, by converting electric energy into electric energy through relative movement of a coil and a magnet, the electric power can be produced as the speed of the automobile increases.

Since the brake pad is attached to the brake caliper according to the present invention, as the distance between the coil and the magnet is shortened, more energy can be generated, and a large amount of electric power can be produced even if the speed is reduced on the downward path.

In addition, the electric vehicle does not consume power when depressing downhill and braking. It is also possible to charge the electric power directly through the present invention during the idle time.

1 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a first embodiment of the present invention.
2 is a view for explaining the disc rotor shown in Fig.
Fig. 3 is a view for explaining the caliper shown in Fig. 1. Fig.
Fig. 4 is a view for explaining a braking method of the caliper shown in Fig. 3;
5 is a view showing a schematic configuration of a power generation apparatus using a brake system according to a second embodiment of the present invention.
6 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a third embodiment of the present invention.
FIG. 7 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a fourth embodiment of the present invention.
8 is a flowchart illustrating a power generation method using a brake system according to another embodiment of the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a first embodiment of the present invention.

Specifically, the power generation apparatus 10 using the brake system according to an embodiment of the present invention includes a disk rotor 100, a caliper 200, a plurality of permanent magnets 300, and a power generation coil 400.

The disc rotor 100 is formed in the form of a disc that is connected to the wheel 500 of the vehicle and rotates together with the wheel 500. The disc rotor 100 brakes the vehicle by closely contacting the brake pad 210 of the caliper 200 , Permanent magnets 300 are mounted and installed along the outer surface as shown in Fig.

The caliper 200 is mounted on one side of the disc rotor 100 so that the brake pad 210 can be brought into close contact with the disc rotor 100 in order to brake the vehicle, Respectively.

The permanent magnet 300 is mounted on the disk rotor 100 and rotates together with the disk rotor 100 as it rotates to form a magnetic field.

The power generation coil 400 is mounted on the caliper 200 so that kinetic energy of the permanent magnet 300 rotating together with the disk rotor 100 can be converted into electric energy and electric power can be harvested.

In one embodiment, the generating coil 400 flows a current (induced current) every time the permanent magnet 300 rotates, and can generate an electromotive force (induced electromotive force) that causes electricity to flow.

In one embodiment, the power generation coil 400 can directly supply the harvested electricity to an electric device (for example, an electric device such as an instrument panel or a navigation device) that requires electric power by boosting the electric power by a boosting portion In addition, it can be stored in an automobile battery and then supplied to an electric device requiring electricity in the future.

The power generation apparatus 10 using the brake system having the above-described configuration may further include a voltage boosting unit (not shown in the drawing for the sake of convenience of explanation).

The boosting unit is connected to the power generation coil 400 and receives electricity harvested from the power generation coil 400. The boosting unit boosts the received electricity and supplies the boosted electricity to an electric device requiring electricity have.

The power generation apparatus 10 using the brake system having the above-described structure is designed to supply a necessary electric power to the automobile by boosting a small amount of electric energy by using electromagnetic induction phenomenon. The power generation coil 400 and the permanent magnets 300 are connected to the caliper 200. When the brake pad 210 is operated, the power generation coil 400 and the permanent magnets 300 ) Can generate more energy as the distance is shortened, and it is possible to produce a large amount of electric power even if the speed is decreased on the downward path.

In addition, the electric vehicle does not consume power when depressing downhill and braking, and it is possible to charge the electric power directly through the present invention during the idle time

Fig. 2 is a view for explaining the disk rotor 100 shown in Fig.

Referring to FIG. 2, the disk rotor 100 may have a plurality of mounting grooves 110 for mounting and mounting the permanent magnets 300 along the outer side thereof.

At this time, the mounting groove 110 is formed at a position facing the power generation coil 400, thereby minimizing the distance from the power generation coil 400 and improving the power generation efficiency.

The mounting groove 110 is formed in an elongated circular shape along a portion where the brake pad 210 is closely contacted as shown in FIG. 2 (b), so that the permanent magnet 300 And the like.

2C, the mounting groove 110 is formed on the inner side of the portion where the brake pad 210 is in close contact, unlike the case 2 (b) formed in the portion where the brake pad 210 is in close contact, The contact surface between the brake disc 210 and the disc rotor 100 is made wider so that the braking performance can be improved by increasing the adhesion force of the brake pad 210.

The mounting groove 110 must be longer than the length of the permanent magnet 300 and the permanent magnet 300 is attached to the inside of the disk rotor 100 so that the interference of the permanent magnet 300 at the time of braking . In addition, the permanent magnet 300 can be disposed at the edge portion of the disc rotor 100 so as to produce a larger amount of electric power by using a short distance from the caliper 200.

The disk rotor 100 having the above-described structure is constructed such that the permanent magnet 300 is inserted into the grooved mounting groove 110 for mounting and mounting the permanent magnet 300, It is possible to prevent the permanent magnet 300 from being corroded.

3 is a view for explaining the caliper 200 shown in Fig.

In one embodiment, the caliper 200 may include one or more pistons 220 to cause the brake pads 210 to be brought into close contact with the disc rotor 100 by hydraulic pressure. At this time, the piston 220 can form a mounting groove for mounting the power generation coil 400 (not shown in the figure for convenience of explanation).

The power generation coil 400 may be installed between the piston 220 and the brake pad 210 and may have a helical structure or a spiral structure corresponding to the structure of the mounting portion. have.

4 is a view for explaining a braking method of the caliper 200 shown in Fig.

Referring to FIG. 4, as the piston 220 presses the brake pad 210 by hydraulic pressure, the caliper 200 comes into close contact with the disc rotor 100 to brake the wheel.

As shown in FIG. 4, unlike the case of FIG. 3 in which the generating coil 400 maintains a certain distance from the permanent magnet 300 during traveling of the vehicle, when the vehicle is braked, The distance between the permanent magnet 300 and the brake pad 210 may be reduced by pressing the brake pad 210, thereby improving power generation efficiency.

The caliper 200 having the above-described structure is configured such that the power generation coil 400 mounted on one side of the piston 220 during braking of the vehicle is closely attached in the direction of the disk rotor 100 together with the piston 220, The permanent magnet 400 can be brought into close contact with the moving permanent magnet 300 while forming a magnetic field. Thus, the distance between the power generation coil 400 and the permanent magnet 300 is shortened, so that the power generation efficiency is increased and more energy can be generated. In order to brake the motor on the downhill path and maintain the distance from the front wheel, Even when the vehicle is braked to reduce the speed of the vehicle, such as stepping, the mounting position of the power generation coil 400 is fixed and a larger amount of electric power can be produced than in the case of generating electricity.

5 is a view showing a schematic configuration of a power generation apparatus using a brake system according to a second embodiment of the present invention.

5, the power generation apparatus 20 using the brake system includes a disk rotor 100, a caliper 200, a plurality of permanent magnets 300, a power generation coil 400, and a wheel 500. Here, the disc rotor 100, the caliper 200, the plurality of permanent magnets 300, and the power generation coil 400 are the same as those of FIG. 1, and thus description thereof is omitted.

The wheel 500 has a tire mounted on the outer side and is connected to the disk rotor 100 through a wheel hub 520.

In one embodiment, the wheel 500 may be mounted with a plurality of permanent magnets 300 mounted on the inner formed tire rim 510.

In an embodiment, the wheel 500 may be mounted with a plurality of permanent magnets 300 on the outside of the wheel hub 520 connected to the disk rotor 100.

The power generation apparatus 20 using the brake system having the above-described construction is a system in which the permanent magnet 300 is attached to the tire rim 510 to generate electricity through electromagnetic induction with the caliper 200. The permanent magnet 300 can be damaged by the heat of the rotor when attached to the disk rotor 100. This can induce power generation in the tire rim 510 rotating with the outside of the caliper 200. [

The power generating apparatus 20 using the brake system having the above-described construction is provided with a plurality of permanent magnets 300 capable of forming a magnetic field in the tire rim 510 rotating around the fixed caliper 200 The power generation coil 400 mounted inside the caliper 200 can generate electricity by using a plurality of permanent magnets 300 to be moved so that the permanent magnets 300 are installed in only the disc rotor 100 So that a larger amount of electricity can be produced.

In addition, a plurality of permanent magnets 300 capable of forming a magnetic field can be mounted on the wheel hub 520 rotating around the fixed caliper 200, The power generation coil 400 installed in the caliper 200 produces electric power so that a greater amount of electricity can be produced than when the permanent magnet 300 is installed only in the disk rotor 100. [

6 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a third embodiment of the present invention.

6, a generator 30 using a brake system includes a disk rotor 100, a caliper 200, a plurality of permanent magnets 300, a generator coil 400, and a thermoelectric element 600 . Here, the disc rotor 100, the caliper 200, the plurality of permanent magnets 300, and the power generation coil 400 are the same as those of FIG. 1, and thus description thereof is omitted.

The thermoelectric element 600 is mounted on the inner side of the brake pad 210 to receive heat energy generated from the brake pad 210 when the vehicle is braked and convert it into electric energy to harvest electricity.

The power generation device 30 using the brake system having the above-described configuration is configured such that the braking device at the time of braking the vehicle, that is, the braking heat generated at the brake pad 210 is provided at the inner side of the brake pad 210 600) are transmitted to the vehicle, so that the braking heat generated in the braking device can be recovered in the form of electric energy as the vehicle repeats traveling and braking.

FIG. 7 is a diagram showing a schematic configuration of a power generation apparatus using a brake system according to a fourth embodiment of the present invention.

7, a generator device 40 using a brake system includes a disk rotor 100, a caliper 200, a plurality of permanent magnets 300, a generator coil 400, and a piezoelectric element 700 . Here, the disc rotor 100, the caliper 200, the plurality of permanent magnets 300, and the power generation coil 400 are the same as those of FIG. 1, and thus description thereof is omitted.

The piezoelectric element 700 is mounted on the inner side of the brake pad 210 so as to receive the compressed energy generated from the brake pad 210 when the vehicle is braked and convert it into electrical energy to harvest electricity.

The power generation device 40 using the brake system having the above-described structure is configured such that the compression energy transmitted to the braking device, that is, the brake pad 210 at the time of braking of the vehicle, 600 are transferred to and developed by the vehicle, so that the compression energy generated in the braking device can be recovered in the form of electric energy as the vehicle repeats traveling and braking.

8 is a flowchart illustrating a power generation method using a brake system according to another embodiment of the present invention.

Referring to FIG. 8, a disc-shaped disc rotor 100 in which a permanent magnet 300 is mounted is rotated (S710).

The kinetic energy of the permanent magnet 300 rotating together with the disk rotor 100 in the generator coil 400 installed in the caliper 200 for braking the vehicle is rotated by the rotation of the disk rotor 100 in the step S710 And converted into electrical energy to harvest electricity (S720).

When the electric power is harvested in step S720, the electric power harvested by the power generation coil 400 is received at the voltage step-up part connected to the electric power generation coil 400, and the voltage is increased (step S730).

If the electric power is boosted in the above-described step S730, the electric power harvested by the power generation coil 400 can be stored in the vehicle battery.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

100: disk rotor
110: mounting groove
200: caliper
210: Brake pad
220: Piston
300: permanent magnet
400: power generation coil
500: Wheel
510: Tire Rim
520: Wheel hub
600: thermoelectric element
700: piezoelectric element

Claims (19)

A disk-shaped disk rotor connected to the wheel of the vehicle and rotated together with the wheel;
A caliper mounted on one side of the disk rotor to closely contact the brake pads with the disk rotor to brake the vehicle;
A plurality of permanent magnets mounted on the disk rotor; And
And a generator coil mounted on the caliper so that kinetic energy of the permanent magnet rotating together with the disk rotor can be converted into electric energy and electric power can be harvested.
The disk rotor of claim 1,
And a plurality of mounting grooves for mounting and mounting the permanent magnets are formed along the outer side.
The connector according to claim 2,
And the power generation coil is formed at a position facing the power generation coil.
The connector according to claim 2,
Wherein the brake pad is formed in an elongated circular shape along a portion where the brake pad is closely contacted.
The connector according to claim 2,
And the brake pad is formed on the inner side of the portion to which the brake pad is closely attached.
The apparatus of claim 1,
And one or more pistons for causing the brake pads to closely contact with the disk rotor by hydraulic pressure.
7. The power generating apparatus according to claim 6,
And the brake pad is installed between the piston and the brake pad.
The power generating apparatus according to claim 7,
Wherein the piston is pressed against the brake pad by hydraulic pressure, and the distance from the permanent magnet is shortened to improve power generation efficiency.
The power generating apparatus according to claim 7,
Wherein the power generating device has a helical structure or a spiral structure.
The method according to claim 1,
Further comprising a wheel mounted on the outer side of the tire and connected to the disk rotor.
11. The wheel according to claim 10,
And a plurality of permanent magnets are mounted on the inner side tire rim.
11. The wheel according to claim 10,
And a plurality of permanent magnets are mounted on the outer side of the wheel hub connected to the disk rotor.
The method according to claim 1,
Further comprising a thermoelectric element mounted on the inner side of the brake pad so as to receive heat energy generated from the brake pad when the vehicle is braked and convert the electric energy into electrical energy to harvest electricity.
The method according to claim 1,
Further comprising a piezoelectric element mounted on the inner side of the brake pad so as to receive compressive energy generated in the brake pad when the vehicle is braked and convert it into electric energy to harvest electricity. .
The method according to claim 1,
Further comprising a boosting unit connected to the power generation coil and configured to increase the voltage of the power generated by the power generation coil.
A disk-shaped disk rotor connected to the wheel of the vehicle and rotated together with the wheel;
A caliper mounted on one side of the disk rotor to closely contact the brake pads with the disk rotor to brake the vehicle;
A plurality of permanent magnets mounted on the disk rotor;
A generator coil mounted on the caliper so as to convert kinetic energy of the permanent magnet rotating together with the disk rotor into electrical energy to harvest electricity;
A wheel mounted on the outer side of the tire and connected to the disk rotor;
A thermoelectric element mounted on the inner side of the brake pad so as to receive heat energy generated from the brake pad when the vehicle is braked and convert it into electric energy to harvest electricity; And
And a step-up unit connected to the power generation coil for receiving the electricity harvested from the power generation coil to increase the voltage,
Wherein the disk rotor has a plurality of mounting grooves for mounting and mounting the permanent magnets at positions facing the power generating coil along the outside,
Wherein the caliper includes one or more pistons for causing the brake pads to be closely contacted with the disk rotor by hydraulic pressure,
The power generation coil is installed between the piston and the brake pad,
The power generation coil is improved in power generation efficiency as the distance between the piston and the permanent magnet becomes closer as the piston presses the brake pad by hydraulic pressure,
The power generation coil has a helical structure or a spiral structure,
The wheel is provided with a plurality of permanent magnets mounted on an inner tire rim,
Wherein the wheel comprises a plurality of permanent magnets mounted on an outer side of a wheel hub connected to the disk rotor.
A step of rotating a disc-shaped disc rotor provided with a permanent magnet; And
And converting the kinetic energy of the permanent magnet, which rotates together with the disk rotor, into electrical energy, and harvesting electricity, in a power generation coil mounted on a caliper for braking the vehicle.
18. The method of claim 17,
Further comprising the step of receiving and boosting the electric power harvested from the power generation coil at a boosting unit connected to the power generation coil.
18. The method of claim 17,
Further comprising the step of storing electricity collected by the power generation coil in a battery for a vehicle.

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