KR101032375B1 - Energy saving system for vehicle - Google Patents

Abstract

PURPOSE: A car energy reduction device is provided to generate a rotation force using the force between an electromagnet and permanent magnet. CONSTITUTION: A car energy reduction device comprises a rotating unit(110), a fixing unit(120), and an electricity adjusting unit. The rotating unit is cylindrically shaped and is located at the circumference of a wheel axle(200). A plurality of permanent magnets is arranged on the external side of the rotating unit in a radial direction at a regular interval. The fixing unit has a cylindrical shape and is formed on the external side of the rotating unit to be placed in center of the rotating unit. A plurality of electromagnets is arranged in the inside of the fixing unit in a radial direction at a regular interval. The electricity adjusting unit is electrically connected to a storage battery of the vehicle. The electricity adjusting unit converts the direction of the current applied to the permanent magnet and electromagnet according to the rotation speed of the wheel axle.

Description

[0001] Energy Saving System for Vehicle [0002]

The present invention relates to an energy saving device for an automobile.

In modern life, automobiles are now widely used as a necessity. The automobile is a convenient means that allows a person to easily travel in a long distance in a short time, the consumption amount of fossil fuel used to operate the automobile, environmental pollutants generated from the automobile, and various facilities for purifying the automobile It is also undeniable that it is one of the major causes of depletion of the earth's resources. However, as described above, it is impossible to reduce the amount of automobiles that have become a means of daily use for modern people without completely changing the pattern of life. Research on the direction of saving energy by reducing the energy consumption of automobiles Is coming. In order to reduce the consumption of fossil fuels as a part of this research, electric vehicles using fuel cells as energy sources and electric motors as driving sources, electric engines using existing fossil fuels and electric motors using fuel cells Hybrid vehicles that reduce energy consumption by selectively using driving sources according to conditions have been developed and some are in the commercialization stage.

Since the driving source itself of the electric vehicle, the hybrid car, and the like as described above is entirely different from that of the existing automobile, it can not be manufactured to such an extent as to add or replace some parts in the existing automobile. Therefore, in order to use an electric car or a hybrid car, it is necessary to dispose of the existing automobile and purchase a new one, which is a serious financial burden to the individual.

In conventional vehicles, which are generally used widely, there is only a way to reduce the energy required by the user, such as encouraging improvement of the vehicle management and driving habits. Therefore, there has been a steady demand for technologies that can use existing automobiles and save energy.

On the other hand, automobiles were initially composed of only mechanical parts, but with the development of technology, the use of electric and electronic parts is increasing. For example, the use of sensors that measure various states of parts of an automobile, and MCUs that perform control using values input from such sensors are now electric and electronic components commonly used in all automobiles. As the use of electric and electronic components increases, not only the energy consumption due to the use of fossil fuel is consumed in automobiles, but the consumption of electric energy also constitutes a large part of the total energy consumption of the automobile.

However, as described above, studies for reducing energy consumption in automobiles are mostly focused on the development of alternative energy for replacing fossil fuels. As described above, in order to reduce the consumption of electric energy in general automobiles The research we are trying to do is not very active.

Techniques for reducing energy consumption in automobiles have been disclosed in various fields as well. As described above, research to reduce energy consumption by improving the driving source itself of an automobile led to the development of electric vehicles and hybrid vehicles, and Korean Patent Registration No. 0292857 ("Engine using permanent magnets & 2005-0089726 ("Device for increasing the combustion efficiency of an internal combustion engine"), and the like. There are also a number of other technologies, including:

One of common automotive energy saving technologies is to improve the efficiency of the overall energy efficiency of automobiles by improving efficiency in air conditioning systems currently installed in most automobiles. These technologies are widely used in various fields such as the air conditioning system itself or each part or control method such as Korean Patent Laid-Open Publication No. 2008-0026738 ("Evaporator") and Korean Patent Laid-Open Publication No. 2009-0022204 ("Integrated Cooling Heat Exchanger" .

Generally, a car is provided with a battery, and electric energy is extracted from the battery. When the car is driven, kinetic energy generated by the rotation of the wheel shaft is used to generate electricity and stored in the battery. Recharging. As a technique for improving the efficiency of energy consumption of automobiles by improving the charging method and apparatus of such batteries, Korean Patent Registration No. 0236226 ("Vehicle Battery Charging Method and Apparatus"), Korean Patent Laid-Open Publication No. 2008-0034324 ("Vehicle charging system with auxiliary battery").

BACKGROUND ART [0002] Techniques for recycling energy using a phenomenon generated by driving an automobile, such as charging a battery using rotation generated in a wheel axis as the automobile is driven, are also disclosed in various fields. In Korean Patent Application Publication No. 1999-0046347 ("Vehicle braking and energy-driven driving device for vibration"), a technique of converting braking energy and extinction kinetic energy into vehicular braking energy and converting it into hydraulic energy form, . However, in Korean Patent Publication No. 2006-0068016 ("Combined Alternative Energy Generation & Recycling System Using Wind Pressure and Driving Pressure of an Automobile"), a windmill, street lamp, As the unused energy to be discharged from the road on the road of the automobile, the mechanical energy such as the inertia energy of the vehicle and the pressure energy of the traveling load contacting the road surface is recycled as the main power for recovery and the turbine is rotated by the pressurized compressed air. Discloses an energy saving road facility that generates and stores electric power in an environmentally friendly manner that does not require energy. In Korean Patent Laid-Open Publication No. 2004-0038923 ("Automobile Energy Recycling Apparatus"), when the brake pedal is pressed to brake the vehicle, the current supply switch provided on the brake pedal is simultaneously depressed to drive another rotation portion connected to the engine shaft and the belt, So that a possible power can be obtained.

As described above, a great variety of techniques for improving energy consumption efficiency in automobiles are disclosed. However, as described above, there is a problem that changing the structure of the driving source itself causes a considerable financial burden in actual application. In spite of the fact that researches on electric vehicles and hybrid vehicles have been widely carried out, there is a problem that it is very difficult to obtain sufficient performance as compared with a conventional vehicle using fossil fuels. Also, in the case of a technique for improving the efficiency of a part of an internal system of an automobile such as an air conditioning system, it is also applicable to the development of a new car at an enterprise level, and it is difficult for an individual to replace a part of an existing automobile It is true that most of these technologies are.

Lastly, the energy saving effect is not substantial except for the battery charging technology already implemented in the existing automobile.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method of controlling a vehicle, which comprises providing a permanent magnet on a wheel axis, By providing an electromagnet, a power recovery device that generates a rotational force by using the pushing force between the permanent magnet and the electromagnet and generates an induced current in the wheel axis is provided so that electric energy can be stored in the battery, And further, by driving the automobile by using the rotational force by the magnetic field, the energy consumption of the automobile is reduced. It is another object of the present invention to provide an energy saving device for an automobile which can reduce the energy consumed by friction by the electromagnet provided around the wheel axle also acting as a magnetic bearing.

According to an embodiment of the present invention, there is provided an energy-saving device for an automobile, the energy-saving device for an automobile having a cylindrical shape and being provided around a wheel axis of an automobile, The permanent magnets 111 are arranged radially and at equal intervals, and the permanent magnets 111 have a rotation part 110 in which N poles and S poles are alternately arranged; A plurality of electromagnets 121 are radially and equally spaced apart from each other on the outer side of the rotary part 110 so as to have the same center as that of the rotary part 110, 111), and a magnetic field sensor (122) for sensing the magnetic field of the magnetic field sensor (111); And is electrically connected to a battery 300 of an automobile and connected to the fixed portion 120 to generate electric power for controlling a current applied to the electromagnet 121 according to the intensity and polarity of a magnetic field sensed by the magnetic field sensor 122, A control unit 130; And a control unit.

The power regulator 130 includes a permanent magnet 111 and a permanent magnet 111 disposed on an extension line extending in a radial direction from the center of the permanent magnet 111 and the center of the wheel axis 200, 121 are arranged to have the same polarity so that the directions of currents applied to the permanent magnets 111 and the electromagnets 121 are switched according to the rotation speed of the wheel shaft 200 .

In this case, the power regulator 130 includes a switching element for repeatedly providing or switching the current. At this time, it is preferable that the switching element is a GTO element or an IGBT element.

The energy recovery apparatus 100 may further include a power recovery unit 140 for charging the battery 300 with an induction current generated by the rotation of the wheel axle 200 when the automobile travels forward. And further comprising:

It is preferable that the number of the permanent magnets 111 and the number of the electromagnets 121 are the same.

According to the present invention, by using a magnetic field to obtain a rotational force, the automobile is driven, whereby the consumption of fuel can be reduced and the energy can be greatly reduced.

In addition, according to the present invention, there is an effect of further reducing the energy consumption by further improving the conventional system of generating electric power by using the rotation of the wheel axle when driving a vehicle and storing the generated electricity in a battery. In order to drive the device according to the present invention, electric power produced by the device of the present invention is used. In the process of generating electric current by using the magnetic field, friction of the vehicle wheel shaft and the outer shaft shaft The coefficient approaches zero, that is, the device of the present invention not only generates a current but also can serve as a magnetic bearing, so that energy consumption due to friction can be greatly reduced. In other words, ultimately, the energy consumption of the entire vehicle system can be greatly reduced.

Further, according to the present invention, it is easy to employ the apparatus of the present invention in an existing automobile, thereby maximizing compatibility and user convenience. Particularly, the apparatus of the present invention does not require a large cost, and since an existing automobile can be utilized as it is, there is an economically advantageous effect.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an energy saving device for an automotive vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a configuration of an energy saving device for an automotive vehicle according to the present invention, and FIG. 2 is a detailed view of the vicinity of a wheel axis of the energy saving device for a vehicle according to the present invention.

1 and 2, the automotive energy-saving device 100 of the present invention includes a rotation unit 110, a fixing unit 120, and a power control unit 130. The rotation unit 110 and the fixing unit 120 are provided on a wheel axis 200 of a vehicle and the power control unit 130 is connected to a battery 300 of an automobile. Here, the automotive energy saving apparatus 100 of the present invention may further include a power recovery unit 140 as shown in FIG. The power recovery unit 140 is configured to charge the battery 300 with the induction current generated by the rotation of the wheel shaft 200 when the automobile travels forward. It may be implemented by using The power recovered by the power recovery unit 140 is stored in the battery 300 and the power control unit 130 can secure the driving power of the energy reduction apparatus 100 for the vehicle .

Hereinafter, the configuration of the rotation unit 110, the fixing unit 120, and the power control unit 130 will be described in detail.

The rotary part 110 is formed in a cylindrical shape and is provided around the wheel shaft 200 of the automobile, and a plurality of permanent magnets 111 are radially and equally spaced apart from each other. At this time, as shown in FIG. 2, the permanent magnets 111 are alternately arranged with N poles and S poles.

The fixing part 120 is formed in a cylindrical shape and is provided on the outer side of the rotation part 110 to have the same center as the rotation part 110 and a plurality of electromagnets 121 are radially and equally spaced . 2, a magnetic field sensor 122 for sensing a magnetic field of the permanent magnet 111 is disposed on one side of the fixed portion 120, in addition to the electromagnets 121 .

In this case, the permanent magnets 111 and the electromagnets 121 may have the same number as shown in FIG. 2, or may have the same number (as shown in FIG. 4, The number may not be the same.

The electric power adjusting unit 130 is electrically connected to the battery 300 of the vehicle and is connected to the fixing unit 120 so that the electric power of the electromagnet 121 is changed according to the intensity and polarity of the magnetic field sensed by the magnetic field sensor 122, As shown in FIG. At this time, the intensity and polarity of the magnetic field generated in the electromagnet 121 are changed according to the current applied by the power regulator 130, so that the magnetic field of the permanent magnet 111 and the electromagnet 121, The motion is generated by the action of the magnetic field of the magnetic field.

The power regulator 130 includes the permanent magnets 111 and the electromagnets 121 disposed on an extension line extending from the center of the wheel axle 200 through the permanent magnets 111, The permanent magnets 111 and the electromagnets 121 generate a force to push them against each other. More specifically, when the magnetic field sensor 122 of the fixing unit 120 senses the strength and polarity of the magnetic field of one of the permanent magnets 111 according to the rotation of the rotation unit 110, The position of each of the permanent magnets 111 of the rotation unit 110 can be known by the power controller 130 according to the magnetic field intensity and polarity sensed by the magnetic field sensor 122. The power regulator 130 may include any one of the permanent magnets 111 and the electromagnets 111 disposed on an extension line extending in the radial direction from the center point of the wheel axle 200 through the permanent magnets 111. [ 121 can have the same polarity. Of course, since the position of the permanent magnet 111 is continuously changed as the rotation unit 110 rotates, the electric power controller 130 controls the rotation of the permanent magnet 111 and the rotation of the wheel shaft 200, Thereby switching the direction of the current supplied to the electromagnet 121. The position can be continuously confirmed by using the magnetic field intensity and the polarity value sensed by the magnetic field sensor 122, and the switching operation in the power control unit 130 can be easily implemented using the same.

By applying a current to the electromagnet 121 parallel to any one of the permanent magnets 111 so as to give the same polarity as that of the permanent magnet 111 in the power regulator 130, The rotational force can be obtained by the pushing force between the permanent magnets 111 and the magnetic fields of the electromagnets 121. 3 schematically shows an example of the operation principle of the automotive energy saving apparatus 100 of the present invention. Hereinafter, the principle will be described in more detail through the example of FIG.

First, at any moment, as shown in Fig. 3 (A), one pole (N pole in this example) of one of the permanent magnets 111 is detected by the magnetic field sensor 122. The position of each of the electromagnets 121 and the magnetic field sensor 122 disposed in the fixed portion 120 is a known value and the position of the permanent magnets 111 The power regulator 130 controls the rotation of the rotary part 110 through the intensity and polarity of the magnetic field sensed by the magnetic field sensor 122, The position of each of the permanent magnets 111 can be easily calculated.

The electric power adjusting unit 130 may include the permanent magnets 111 and the electromagnets 121 disposed on an extension line in the radial direction passing the permanent magnets 111 from the center points of the wheel axles 200, The electric current is applied to the electromagnet 121 so that they have the same polarity. 3, when the N pole is sensed by the magnetic field sensor 122, the power controller 130 controls the power of the permanent magnets 111 detected by the magnetic field sensor 122 in the rotating direction of the rotation unit 110 The electric current is applied so that the electromagnet 121 in a position in parallel with the permanent magnet 111 in front of one cell of the main pole 111 is in the S-pole. In Fig. 3 (A), electromagnets 121 indicated by a broken line circle are electromagnets to which a current is applied. Of course, currents may be applied so that all the electromagnets 121 parallel to the S poles of the respective permanent magnets 111 have S poles. However, as shown in FIG. 3, only a part of the electromagnets 121 It is possible.

The application of such a current may be implemented by causing the power regulator 130 to include a switching element that repeatedly provides or switches the current. The switching device may be, for example, a GTO device or an IGBT device.

As shown in FIG. 3 (A), when a portion of a certain permanent magnet 111 and an electromagnet 121 disposed in parallel with each other have the same S pole, a mutual pressing force acts between them. As a result of this pushing force, a rotating force is generated and the rotating unit 110 is rotated as shown in FIG. 3 (B).

When the rotation unit 110 further rotates, the electromagnets 121 to which the S pole is applied in FIG. 3A and FIG. 3B are now brought into contact with the N pole permanent magnets 111 of the rotation unit 110 . 3 (C), the power controller 130 controls the rotation of the rotation unit 110, that is, the rotation angle of the rotation unit 110, The electric current is applied so that the electromagnet 121 at a position in parallel with the permanent magnet 111 in front of the one cell is in the S-pole. 3 (D), the urging force is applied between the permanent magnet 111 of the rotary part 110 and the electromagnet 121 of the fixed part 120, . Thereafter, the same operation is repeated cyclically, so that the rotation unit 110 obtains a constant rotation force.

Fig. 4 is another embodiment of the configuration of the vicinity of the wheel axis of the energy-saving device for vehicles of the present invention. 2 and 3, the number of the electromagnets 121 included in the permanent magnet 111 and the fixed portion 120 provided in the rotation unit 110 are the same, The number of the permanent magnets 111 and the number of the electromagnets 121 are different from each other. That is, as shown in FIG. 4, in the embodiment of FIG. 4, eight permanent magnets 111 are disposed radially, and twelve electromagnets 111 are disposed radially. In this case, two sets of the permanent magnets 111 constituting ten (10) are stacked at two angles at an angle of 45 degrees, and two sets of the electromagnets 121 In the set, there are three sets of three crosses arranged at an angle of 30 °. At this time, when any one set of the permanent magnets 111 and one set of the electromagnets 121 are arranged side by side, there will be no set arranged side by side among the other sets.

When the number of the permanent magnets 111 and the number of the electromagnets 121 are not equal to each other, current can be applied only when the permanent magnets 111 and the electromagnets 121 are arranged in parallel. 4 (B), 4 (C), and 4 (D), three sets are set in accordance with the rotation of the rotary part 110 (that is, according to the positional change of the permanent magnets 111) So that current is applied while turning.

Such driving by the pushing force of the magnetic field can be sufficiently understood through the principle of a magnetic levitation train (linear motion) or a magnetic levitation (rotational motion), and a person skilled in the art can sufficiently understand The energy reduction apparatus 100 for a vehicle can be easily realized, and a more detailed theoretical explanation will be omitted.

It may be difficult to supply sufficient energy to drive the wheel shaft 200 only by the action of a magnetic field in the initial stage of the vehicle, that is, immediately after starting. However, at the time when the automobile is traveling normally, the wheel shaft 200 moves in the direction of continuing to rotate by the rotational inertia, so that the continuous rotation can be generated by the action of the magnetic field alone. Of course, in this case, it is possible to sustain the rotation with very little energy, thereby greatly saving fuel consumption.

In addition, according to the present invention, the energy consumption reduction effect as described in the following description can be obtained. In the present invention, the rotational force as described above is obtained by the pushing force due to the magnetic field between the rotation part 110 and the fixing part 120, and at the same time, the rotation of the wheel shaft (the rotation part 110) 200 are kept floating in the fixing part 120. [ That is, the wheel shaft 200 and the fixing portion 120 are not in contact with each other. As a result, the friction coefficient between the wheel shaft 200 and the fixed portion 120 becomes zero, so that no energy is lost due to friction during the rotation of the wheel shaft 200. That is, the rotation unit 110 and the fixing unit 120 can rotate the wheel shaft 200 and function as a magnetic bearing. Accordingly, the energy saving effect by the rotation unit 110 and the fixing unit 120 is further increased.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram of an automotive energy-saving device of the present invention;

2 is a view showing an embodiment of the vicinity of a wheel axis of an energy-saving device for an automobile according to the present invention.

3 is an operational principle example of the energy-saving apparatus for vehicles of the present invention.

4 is a view showing another embodiment of the vicinity of a wheel axis of an energy-saving device for a vehicle according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

100: Automotive energy-saving device (of the present invention)

110: rotating part 111: permanent magnet

120: fixing part 121: electromagnet

122: magnetic field sensor

130: power regulator 140: power recovery unit

200: Wheel axis 300: Storage battery

Claims (6)

In an automotive energy-saving device (100) A plurality of permanent magnets 111 are arranged radially and equally spaced apart from each other on the outer side of the wheel shaft 200 of the automobile, and the permanent magnets 111 have N poles and S poles alternately A rotation part 110 disposed; A plurality of electromagnets 121 are radially and equally spaced apart from each other on the outer side of the rotary part 110 so as to have the same center as that of the rotary part 110, 111), and a magnetic field sensor (122) for sensing the magnetic field of the magnetic field sensor (111); And is electrically connected to a battery 300 of an automobile and connected to the fixed portion 120 to generate electric power for controlling a current applied to the electromagnet 121 according to the intensity and polarity of a magnetic field sensed by the magnetic field sensor 122, A control unit 130; And a control unit for controlling the energy of the vehicle. The apparatus of claim 1, wherein the power controller (130) The electromagnets 121 disposed on an extension line in the radial direction passing through the permanent magnets 111 from any one of the center points of the permanent magnets 111 and the wheel axles 200 have currents And switches the direction of the current applied to the permanent magnet (111) and the electromagnet (121) according to the rotational speed of the wheel shaft (200). 3. The apparatus of claim 2, wherein the power controller (130) And a switching element for repeatedly providing or switching the current. 4. The switching device according to claim 3, GTO device or an IGBT device. The automotive energy-saving device (100) according to claim 1, A power recovery unit (140) for charging the battery (300) with an induction current generated by the rotation of the wheel shaft (200) when the automobile travels forward; Further comprising: an energy storage unit for storing energy of the vehicle; The automotive energy-saving device (100) according to claim 1, Wherein the number of the permanent magnets (111) and the number of the electromagnets (121) are the same.

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