KR20120031563A - An electric car having a sun location tracking system - Google Patents

Abstract

PURPOSE: An electric vehicle including a solar tracking system is provided to improve generation efficiency of solar energy by controlling a location of a sunlight collecting plate based on a calculated solar location. CONSTITUTION: A solar power generating device includes a sunlight collecting plate(210) and a sunlight collecting plate driving unit(220) which controls a posture of the sunlight collecting plate. A vehicle location detector(120) detects the location of a vehicle. A main solar location calculating unit(100) calculates a solar location based on the location of the vehicle. A sunlight collecting plate location detector(300) measures an actual location of the sunlight collecting plate based on the sun. A main control unit(400) controls the location of the sunlight collecting plate.

Description

Electric Vehicle with Solar Positioning System {AN ELECTRIC CAR HAVING A SUN LOCATION TRACKING SYSTEM}

The present invention relates to an electric vehicle, and more particularly, to an electric vehicle having a solar position tracking system capable of solar power generation by accurately detecting and following the position of sunlight.

As society develops and modernizes, development of alternative energy is becoming active due to high oil prices and depletion of fossil energy, which are caused by an increase in the consumption of fossil energy.

Among the alternative energy, great attention is focused on the field of solar energy which can be used without pollution. In particular, since photovoltaic power generation is a semiconductor element and a control part is an electronic component, there is no mechanical vibration or noise, and the life of the solar cell is longer than several decades, and the power generation system is semi-automated or automated, and operation and maintenance are possible. There is an advantage that can minimize the cost.

In addition, photovoltaic power generation has the advantage that it can be widely used for home use because small-scale power generation is possible without requiring large-scale power generation facilities.

On the other hand, since the sun moves along the orbit during the time from sunrise to sunset, when the solar light mining unit is fixed at a predetermined position for a long time, the solar heat cannot be received under optimum conditions, thereby reducing the efficiency of the system.

Therefore, it is known that when a heat collecting device including a solar panel that receives solar heat is tracked along the trajectory of the sun, the solar heat may be received under optimum conditions for a long time to increase the efficiency of the system. For this reason, the development of the solar position tracking device is actively made.

One example of a conventional solar tracking device includes a current measuring sensor measuring a current amount of electric power produced by receiving solar heat from a solar panel and a solar panel, that is, a heat collecting device, which rotates and drives a solar panel at a predetermined angle along the orbit of the sun. It includes a drive unit.

In the case of such a configuration, the current measurement sensor and the like may be largely caused according to the variables such as temperature, climate, season, etc., there is a problem that it is difficult to track the position of the sun normally when a failure occurs.

In addition, in the related art, the position of the sun is calculated by a program according to a date and a time zone, and an electronic compass or an inclination sensor is mounted on the solar panel to follow the calculated solar position so that the solar panel receives sunlight in an optimal state. Although technology has been proposed, in this case, the electronic compass plate or tilt sensor is expensive equipment, so the installation cost of the overall system increases, and it is difficult to guarantee the normal operation of the heat collecting device in the event of failure of the electronic compass plate or the tilt sensor. There is this.

In addition, in the case of the electronic compass and the tilt sensor, the drive control is performed to continuously change the attitude of the solar panel even at night time from sunset to sunrise, thereby increasing energy consumption according to the driving of the device.

In addition, a method of tracking the position of the sun by using a light receiving sensor is also used. In this case, if foreign matter such as dust is accumulated or accumulated on the light receiving sensor, an error occurs in the measured value, making it difficult to accurately track the sun. There was a problem.

On the other hand, in recent years, while reducing the use of fossil energy, the development and dissemination of electric vehicles have been actively conducted to improve environmental pollution. In the case of such an electric vehicle, the electric energy charged in the battery is used as a power source by using a large capacity battery. When all of the electric energy charged in the battery is used, it is troublesome to charge it in a separate charging station.

In view of this point, a technology for installing a solar power generator capable of generating electricity using solar heat has been researched and developed. However, even in this case, as described above, depending on the location of the electric vehicle or according to the date and time. Since the position of the sun is different, it is difficult to accurately track the sun position to absorb the solar heat in the best state.

The present invention has been made in view of the above, and an object thereof is to provide an electric vehicle having a solar position tracking system capable of accurately tracking the position of the sun by a simple configuration.

An electric vehicle equipped with a solar position tracking system of the present invention for achieving the above object is installed so as to be sunk in and out of the main body of the vehicle, the light collecting plate to absorb and generate solar heat when exposed to the outside, and to adjust the attitude of the light collecting plate A solar power generator having a light collecting plate drive unit; An elevating driving unit for driving the solar power generator in and out of the vehicle body; A vehicle position detector for detecting a position of the vehicle; A main sun position calculator for calculating and calculating the sun position theoretically based on the vehicle position detected by the vehicle position detector by using a program; A light collecting plate position detector for measuring an actual position (posture) of the light collecting plate with respect to the sun; A parking stop sensor for detecting a parking stop of a vehicle; And driving the lift drive unit to control the solar power generator to be exposed to the outside of the vehicle body when the vehicle stop is checked by the parking sensor. The light collecting plate may be configured based on a theoretical value calculated by the main solar position calculator. The drive unit is driven to adjust the position of the light collecting plate, and receives a position measurement value for the adjusted light collecting plate from the light collecting plate position detection unit and compares the theoretical value with the difference between the theoretical value and the measured value. And a main controller for controlling to correct and adjust the position.

Here, the light collecting plate position detection unit may include: a plurality of GPS receivers respectively installed at different positions in the light collecting plate and obtaining respective position information from a GPS satellite; It is preferable to include; position calculation unit for calculating the actual position (posture) of the light collecting plate based on the coordinate values obtained by the plurality of GPS receivers.

The plurality of GPS receivers may include: a first GPS receiver disposed at the center of the light collecting plate; A second GPS receiver installed on the light collecting plate so that the first GPS receiver is spaced apart from each other in a first axis (X) direction and is in the same line as the first GPS receiver in a second axis (Y) direction; And spaced apart from the first GPS receiver in a first axis (X) and a second axis (Y), respectively, and spaced apart from the second GPS receiver only in a second axis (Y). It is preferable to include; a third GPS receiver.

The apparatus may further include a solar sensor installed on the vehicle body to detect sunlight, and wherein the main controller is configured to move the lift driving unit to the vehicle body only when the sunlight is detected by the solar sensor in a stopped state. It is good to control the movement to be exposed to the outside.

In addition, the ceiling of the vehicle body is provided with an accommodating portion for accommodating the solar power generator, and the accommodating portion may be selectively opened and closed by an opening and closing door installed in the automobile body.

The apparatus may further include a traveling speed detector configured to detect a traveling speed of the vehicle, wherein the main controller compares the traveling speed of the vehicle detected by the traveling speed detector with a reference speed, and only when the detected traveling speed is less than the reference speed. The solar power generator is preferably exposed to the outside of the vehicle body to control solar power generation.

The light collecting plate driving unit may include: a first driving part installed at the lifting driving unit and rotating the rotating plate about a third axis Z orthogonal to each of the first axis and the second axis; A plurality of cylinders connected between the rotating plate and the light collecting plate and adjustable in the third axial direction, each of which is independently driven, and the plurality of cylinders are independently driven to drive the light collecting plate. It is good to be able to adjust a posture by rotating about the said 2nd axis direction.

According to the electric vehicle equipped with the solar position tracking system of the present invention, the electric vehicle theoretically calculates the sun position by using a program in a parked state, and then controls the position (posture) of the light collecting plate based on the theoretical value. By increasing solar power generation efficiency, electric energy needed for electric vehicles can be generated and supplied by itself.

In particular, by checking the parking condition of the vehicle, and controlling the power generation operation by the solar power generator after checking the exposure condition of the sun, it is possible to restrain unnecessary operation and to generate power only at the best time and condition, thereby maintaining and managing costs. Reduction and efficient operation.

Also, by installing the light collecting plate position detection unit on the light collecting plate and measuring the actual position (posture) of the light collecting plate, the position (posture) of the light collecting plate is compared with the theoretical value to confirm whether the light collecting plate is located at the position that matches the theoretical value. In addition, when the theoretical value and the measured value are different, the measured value is corrected to match the theoretical value, so that the light collecting plate can be controlled to always follow the sun accurately.

Therefore, the light collecting plate absorbs sunlight in the best state at all times, thereby improving the power generation efficiency using solar heat.

In addition, it is possible to confirm that the electric vehicle runs at a low speed, and to perform the solar power generation operation by exposing the solar power generator to the outside of the vehicle in the low speed state. Therefore, even when the electric vehicle is running, it is possible to increase the operating time of the electric vehicle and reduce the running cost by immediately supplying electricity for driving through self-power generation using solar heat.

1 is a schematic block diagram illustrating an electric vehicle having a solar position tracking system according to an embodiment of the present invention.
Figure 2 shows an electric vehicle with a solar position tracking system according to an embodiment of the present invention.
3 is a partial cross-sectional view showing the main portion of FIG.
FIG. 4 is a view for explaining a state in which the solar power generator moves outside the vehicle body in the state of FIG. 3. FIG.
FIG. 5 is a view illustrating a state in which the light collecting plate is moved along the latitude of the sun in the state of FIG. 4. FIG.
6 is a plan view of the light collecting plate illustrated in FIG. 5.
FIG. 7 is a view illustrating a state where the light collecting plate is moved in accordance with the hardness of the sun in the state of FIG. 5; FIG.
8 is a plan view of the light collecting plate shown in FIG. 7.
9 and 10 are each a flow chart for explaining the operation of the electric vehicle having a solar position tracking system according to an embodiment of the present invention.

Hereinafter, an electric vehicle having a solar position tracking system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, an electric vehicle having a solar position tracking system according to an embodiment of the present invention includes a solar power generation apparatus 200 installed on a main body 10 of a vehicle so that it can be sunk in and out, and a program. The main sun position calculation unit 100 for theoretically calculating and calculating the sun position using the vehicle, the vehicle position detection unit 120 for detecting the position of the vehicle, the traveling speed detection unit 130, the parking stop sensor 140, And a solar light sensor 150, a light collecting plate position detecting unit 300, and a lifting driving unit 500 and a main control unit 400 for elevating and driving the solar power generator 200.

An upper portion of the vehicle body 10, that is, a ceiling, may include an accommodating portion 11 for accommodating the solar power generator 200 in a rotatable manner, and the accommodating portion 11 is opened and closed by a door 12. The doorway 13 is opened and closed. Accordingly, the solar power generator 200 may be exposed to the outside or closed by the opening / closing operation of the opening / closing door 12.

In addition, the operation of the opening and closing door 12 is drive controlled by the main control unit 400. The opening and closing door 12 may be operated to open and close the doorway 13 by sliding, or alternatively, the opening and closing door 12 may be provided to open and close like a sunroof provided in a vehicle. The configuration of the opening / closing door 12 does not limit the present invention.

The solar power generator 200 is installed in the accommodating part 11, and can be mounted in and out of the accommodating part 11, and includes a light collecting plate 210 and a light collecting plate driving unit 220.

The light collecting plate 210 is for absorbing solar heat (light) to generate electrical energy using solar heat, and is biaxially driven by the driving unit 220 to follow the sun according to the sun position. That is, the light collecting plate 210 is driven to rotate around the second axis (Y axis) according to the altitude of the sun, and rotates based on the third axis (Z axis) according to the position (hardness) of the sun. By driving, the light collecting surface of the light collecting plate 210 to maintain a perpendicular state to the sunlight to maintain the light efficiency in the maximum state.

The light collecting plate driving unit 220 includes a plurality of hydraulic cylinders 221 and 222, a rotation driving unit 223, and a rotating plate 224.

The rotation driving unit 223 is installed in the elevating driving unit 500 and rotates the rotating plate 224 about the third axis (Z axis), so that the light collecting plate 210 is in the direction of the sun, that is, the hardness. It is possible to adjust the position in the direction. The rotation driving unit 223 is also controlled by the main control unit 400.

The rotary plate 224 is installed on the upper portion of the rotary drive unit 223, the plurality of hydraulic cylinders (221, 222) are installed on the rotary plate 224 spaced apart from each other. In an embodiment of the present invention, a pair of hydraulic cylinders 221 and 222 are installed to be spaced apart from each other at symmetrical positions with respect to the rotation center of the rotating plate 224, so that the light collecting plate 210 is partially lifted and supported. do. In this way, a plurality of hydraulic cylinders (221, 222) are provided to drive independently so that the length can be adjusted up and down, that is, in the third axis direction independently, the light collecting plate 210 to the second axis (Y) as the rotation center of the sun You can adjust the posture in the longitudinal direction. That is, when the length of the hydraulic cylinder 221 on the left side is increased by driving only the posture of FIG. 4, the light collecting plate 210 may be changed in posture as shown in FIG. 5 so as to follow the sun. The driving of the hydraulic cylinders 221 and 222 is independently precisely controlled by the main control unit 400.

The elevating driving unit 500 is for driving the solar power generator 200 to be lifted and retracted in and out of the accommodating part 11, in the case of the present invention, as shown in FIGS. Although illustrated as an example of the lifting lift configured to be folded, various modifications are possible. For example, another example of the elevating driving unit 500 may be a hydraulic cylinder, a lifting linear motor, a lead screw, or the like, and various kinds of driving means may be employed.

Therefore, when it is determined that the main controller 400 is in a state capable of photovoltaic power generation using solar heat, the main control unit 400 opens the opening / closing door 12, and then drives the lift driving unit 500 to provide sunlight. As shown in FIG. 4, the generator 200 is exposed to the outside of the vehicle body 10 to allow solar power generation.

The vehicle position detector 120 is provided in the vehicle body 10 to detect the position of the vehicle. The vehicle position detector 120 may detect the current position of the vehicle through satellite transmission and reception with the GPS satellites. The vehicle position information detected by the vehicle position detector 120 is transmitted to the main sun position calculator 100.

The main sun position calculation unit 100 calculates and calculates the sun position based on the measurement date, time and position of the vehicle input through the input unit 110 by using a preset sun position calculation program. Here, the sun position calculation method using the sun position calculation program is generally known and can be automatically calculated by computer programming. As described above, the main sun position calculator 100 calculates a theoretical value of the sun position based on the current position of the vehicle, and the calculated theoretical value is transmitted to the main controller 400.

Therefore, the main controller 400 is based on the theoretical value of the solar position transmitted from the main solar position calculation unit 100 as time passes from the initial state as shown in Figure 4 the rotary drive unit 223 and a pair of hydraulic cylinders Drive control 221,222 independently of each other to accurately follow the sun position of the light collecting plate 210.

Subsequently, the drive unit 220 controls driving by the main controller 400 to correct the posture of the light collecting plate 210 according to the actual position (posture) value of the light collecting plate 210 detected by the light collecting plate position detection unit 300. do.

The light collecting plate position detector 300 is for measuring the position (posture) of the light collecting plate 210 according to the actual position of the light collecting plate 210, that is, the position of the sun. The light collecting plate position detector 300 includes a plurality of GPS receivers 310, 320, and 330, and a position calculator 350. The plurality of GPS receivers may include first to third GPS receivers 310, 320, and 330, and at least two GPS receivers may be provided at different positions on the same plane of the light collecting plate 210. The first to third GPS receivers 310, 320, and 330 obtain respective position values, that is, coordinate values, through transmission / reception with GPS satellites, and the obtained X, Y, and Z coordinate values are respectively calculated by the position calculation unit ( 350).

5 and 6, the first and second GPS receivers 310 and 320 are spaced apart from each other in the X-axis direction, and are disposed to be positioned on the same axis line in the Y-axis direction. The third GPS receiver 330 is spaced apart from the first receivers 310 and 320 in the X-axis and Y-axis directions, respectively, and the third GPS receiver 330 is spaced apart from each other only in the Y-axis direction and positioned on the same line in the X-axis direction. do.

Accordingly, the first to third GPS receivers 310, 320, and 330 are arranged to have different three-dimensional coordinate values. In addition, when the light collecting plate 210 is changed in position, that is, posture, by the driving unit 220, three-dimensional coordinate values of the first to third GPS receivers 310, 320, and 330 also change, and the changed three-dimensional coordinate values are GPS. Each of the receivers 310, 320, and 330 may be acquired through a GPS satellite. The 3D coordinate values acquired by the GPS receivers 310, 320, and 330 are transmitted to the location calculator 350.

The location calculator 350 calculates an altitude and a longitude based on the actual location of the light collecting plate 210, that is, the sun location, based on the coordinate values detected by each of the first to third GPS receivers 310, 320, and 330. .

First, when the light collecting plate 210 is rotated about the Y axis in the state of FIG. 4, the posture is changed to the state of FIG. 5. At this time, the superior position calculation unit 350 obtains the altitude value θ2 taken by the light collecting plate 210 based on the coordinate values obtained by the first and second GPS receivers 310 and 320. Here, θ1 may be obtained instead of the angle θ2 as the altitude value. The altitude value θ2 may be easily calculated by calculating the altitude value θ2 by obtaining the distance d between the first and second GPS receivers 310 and 320 and the coordinate values of the GPS receivers 310 and 320. Since the altitude value θ2 changes in response to a rotation angle around the second axis Y of the light collecting plate 210, a position (posture) relative to the sun of the light collecting plate 210 may be calculated.

In addition, when the light collecting plate 210 rotates the rotating plate 224 about the Z axis according to the control signal of the main control unit 400 in the state of FIG. 5 to follow the direction of the sun (in this case, the main Operating according to the theoretical tracking value calculated by the solar position calculation unit), and the first and third GPS receivers according to the angle of rotation of the light collecting plate 210 in the same state as in FIGS. 7 and 8 at the positions of FIGS. 5 and 6. The direction value θ3 between the 310 and 330 is changed, and the changed direction value θ3 can be obtained by calculating the actual coordinate values of the first and third GPS receivers 310 and 330. That is, when the state of FIGS. 5 and 6 is assumed as an initial state, when the direction value 'θ3 = 0' in the initial state, the direction value 'θ3 = measured value = Ø' is shown in the states of FIGS. 7 and 8. do.

By installing the plurality of GPS receivers 310, 320, and 330 in the light collecting plate 210 as described above, the position and the posture of the actual light collecting plate 210 may be calculated through the position calculation unit 350.

The actual position information (measurement value) of the light collecting plate 210 calculated by the position calculating unit 350 is transmitted to the main control unit 400.

The main controller 400 initially drives the driving unit 220 to allow the light collecting plate 210 to follow the sun in an optimal state based on the sun position value (theoretical value) calculated by the main sun position calculator 100. The drive control adjusts the position of the light collecting plate 210, that is, the posture, to the sun position according to the position, date, and time of the vehicle.

In addition, the main controller 400 compares the measured value of the actual position (posture) of the light collecting plate 210 calculated by the position calculating unit 350 with the theoretical value calculated by the main solar position calculating unit 100. . When there is a difference between the measured value and the theoretical value as a result of the comparison, the position (posture) of the light collecting plate 210 is corrected by controlling the driving unit 220 so that the measured value may match the theoretical value.

Therefore, the light collecting plate 210 can always follow the position of the sun accurately, so as to be able to absorb the solar heat in the best state, and even if the driving unit 220 malfunctions or a driving error occurs, the light collecting plate position detection unit 300 The difference value caused by such a malfunction or driving error can be detected and corrected.

In addition, when the difference between the measured value and the theoretical value detected by the light collecting plate position detection unit 300 is excessive, that is, when the difference is greater than the reference ratio (10%), the main controller 400 may malfunction of the driving unit 220. And then follow up. That is, when the main control unit 400 is determined to be the failure of the driving unit 220, the manager or management by transmitting the failure occurrence information of the driving unit to the terminal of the administrator or the management server of the management center through the transmission unit not shown, The center will be aware of this and will be able to repair or replace the fault.

Here, the main controller 400 is to correct the position of the light collecting plate 210 on the basis of the result of detecting the actual position of the light collecting plate 210 during the solar power generation in the vehicle parking state, will be described in detail later, In the case of solar power generation while driving at a low speed below the predetermined reference speed, position correction of the light collecting plate 210 can be omitted.

The stop sensor 140 is installed in the vehicle body 10 to detect a parking or stop state of the vehicle. The parking sensor 140 may include a parking brake operation sensor generally employed in automobiles, and may include an engine driving sensor that detects the parking state of the vehicle even when the vehicle engine is stopped. have. In addition, various types of detection sensors capable of detecting a parking state of the vehicle may be applied.

The solar sensor 150 is installed in the vehicle body 10 and detects sunlight, that is, visible light, to determine whether the sun is exposed or whether the sun is covered by clouds or buildings. The result detected by the solar sensor 150 is transmitted to the main controller 400. Therefore, even if the vehicle is in a parked state and the time zone is between sunrise and sunset, the main controller 400 does not detect solar light or detects solar power below a reference amount. It is determined that the environment is not suitable for the solar power generating operation using the solar power generator 200 will not proceed. That is, when the vehicle is parked in an underground parking lot, or is parked in a shade where the sun is obscured by a building or the like, or when the weather is cloudy and the sun is not exposed, the solar power generator 200 may be installed in the vehicle body 10. This is because exposing to the outside is meaningless.

In addition, according to an embodiment of the present invention, it is preferable to further include a traveling speed detector 130 for detecting the traveling speed of the vehicle. The traveling speed detector 130 detects a traveling speed in a state in which the vehicle is running, and the detected driving speed information is transmitted to the main controller 400.

The main controller 400 compares the traveling speed of the vehicle detected by the traveling speed detection unit 130 with the reference speed, and only when the detected traveling speed is less than the reference speed, the solar power generator 200 is connected to the vehicle body 10. It can be controlled to generate photovoltaic power by exposing to the outside of. That is, for example, when the reference speed is set to 50 km, when the vehicle travels less than 50 km, even if the solar power generator 200 is protruded to the outside of the vehicle body 10, the air resistance is sufficient. It can be determined that power generation while enduring and stably absorbing solar heat, and also the vehicle position detection unit 120 detects the change value of the vehicle position in real time and transmits it to the main solar position calculation unit 100 at low speed. It is possible to adjust the position (posture) of the light collecting plate 210 in response to the movement of the vehicle. As such, the reference speed may be set to an appropriate reference according to variables such as the type of vehicle, the driving region of the vehicle, the season, and the like.

As described above, in the case of the electric vehicle equipped with the solar position tracking system according to the embodiment of the present invention, the operation to perform photovoltaic power generation in the stopped state of the vehicle, and the photovoltaic power generation at low speed operation of the vehicle The operation may be divided into.

Therefore, hereinafter, the operation of the electric vehicle having the solar position tracking system according to the embodiment of the present invention having the above configuration will be described in detail by dividing into two cases.

First, an operation in a parked state of a vehicle will be described in detail with reference to FIGS. 1 to 9.

First, the electric vehicle is driven (S10), the vehicle stop sensor 140 in the driving state to detect whether the vehicle is stopped (S11).

When it is confirmed in step S11 that the vehicle is in the stopped state, the main controller 400 checks whether sunlight is detected by the solar sensor 150 (S12).

When it is confirmed that the solar light is detected in the step (S12), the main control unit 400 moves and opens the opening and closing door 12 as shown in FIG. 3 and drive control of the elevating drive unit 500 shown in FIG. As described above, the solar power generator 200, that is, the light collecting plate 210 is moved out of the vehicle (S13).

In addition, the vehicle position detector 120 detects the current position of the vehicle through communication with the GPS satellite and transmits the current position of the vehicle to the main sun position calculator 100 (S14).

The main solar position calculation unit 100 calculates a theoretical value of the solar position based on the vehicle, that is, the light collecting plate 210, based on the received vehicle position value (S15).

The theoretical value calculated by the main solar position calculation unit 100 is transmitted to the main control unit 400, and the main control unit 400 adjusts the position of the light collecting plate 210 to follow the sun based on the received theoretical value ( S16).

In the state where the light collecting plate 210 is adjusted in position, the light collecting plate position detecting unit 300 detects (measures) the actual position value of the light collecting plate 210 (S17).

In addition, the actual position value, that is, the measured value of the light collecting plate 210 detected by the light collecting plate position detection unit 300 is transmitted to the main control unit 400, and the main control unit 400 compares the theoretical value with the measured value. (S18).

When the theoretical value and the measured value are not the same as the result of the comparison in step S18, the main controller 400 controls the driving unit 220 so that the actual position of the light collecting plate 210 is equal to the theoretical value. The position is corrected to have a posture corresponding to the theoretical value (S19). In this way, by correcting the position of the light collecting plate 210 to match the theoretical value, even if a failure or malfunction of the drive unit 220, a driving error of the drive unit 220 occurs, the light collecting plate 210 always follows the sun accurately. You can do it.

In addition, since the installation position information and the date and time information of the light collecting plate 210 can be known, the accurate time from the sunrise time to the sunset time is secured to limit the driving time of the light collecting plate 210 and the driving unit 220. By controlling, the control of the driving unit 220 and the light collecting plate 210 is stopped from the sunset time to the sunrise time, thereby reducing the management cost and the maintenance cost accordingly.

In addition, as described above, the actual position (posture) of the light collecting plate 210 can be detected by using the light collecting plate position detector 300 installed in the light collecting plate 210, thereby comparing the measured value with the theoretical value to actual values. It is possible to determine whether the light collecting plate 210 is position controlled according to a control signal, and if there is a difference, it is possible to control the light collecting plate 210 to accurately follow the sun at all times, and maximize the power production efficiency using solar heat. There is an advantage to this.

In addition, by exposing the solar power generator 200 to the outside of the vehicle only in an environment in which the vehicle is stopped and at the same time the solar light is detected, unnecessary operation may not be performed in the actual weather, the shade, the interior of the building, and the like. .

On the other hand, when the vehicle is running while the reference speed is less than the solar power can be generated, this case will be described in detail with reference to FIGS. 1 to 8 and 10.

First, the vehicle is running (S20), and in this state, the driving speed detector 130 detects the driving speed of the vehicle (S210).

The detected driving speed is transmitted to the main controller 400, and the main controller 400 compares the detected driving speed with a preset reference speed to determine whether the vehicle is running below the reference speed (S22).

If it is confirmed in the step (S22) that the lane is running at less than the reference speed, the main control unit 400 is determined to be capable of performing the solar power generation operation, as described above, open and close the door 12 and the light collecting plate Moving 210 to the outside of the vehicle to expose (S23).

Then, the lane position detecting unit 120 detects the position of the vehicle (S24), and the detected vehicle position data is transmitted to the main sun position calculating unit 100.

The main solar position calculation unit 100 theoretically calculates a position value of the sun based on the light collecting plate 210 based on the received vehicle position data (S25).

The main controller 400 adjusts the position of the light collecting plate 210 according to the theoretical value calculated by the main solar position calculator 100 (S26). Therefore, while the vehicle is traveling at a lower speed than the reference speed while controlling the light collecting plate 210 to follow the position of the sun, it is possible to absorb the solar heat to the maximum to perform the solar power generation operation.

That is, when the vehicle runs at a low speed on a highway moving in one direction or in a congestion section, solar power generation can be performed, and thus electric power required for the operation of the electric vehicle can be self-generated and used.

While the invention has been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

10. Car body 11. Accommodating part
12. Opening / closing door 13. Entrance
100. Main solar position calculation unit 110. Input unit
120. Vehicle position detector 130. Travel speed detector
140. Parking sensor 150. Solar sensor
210. Condensing plate 220. Driving unit
300. Condenser plate position detection unit 310, 320, 330. First to third GPS receiver
350. Position calculation unit 400 Main control unit
500..lift drive unit

Claims (7)

A solar heat generating device which is installed to be roamed in and out of a vehicle body, and has a light collecting plate for absorbing and generating solar heat when exposed to the outside, and a light collecting plate driving unit for adjusting the attitude of the light collecting plate;
An elevating driving unit for driving the solar power generator in and out of the vehicle body;
A vehicle position detector for detecting a position of the vehicle;
A main sun position calculator for calculating and calculating the sun position theoretically based on the vehicle position detected by the vehicle position detector by using a program;
A light collecting plate position detector for measuring an actual position (posture) of the light collecting plate with respect to the sun;
A parking stop sensor for detecting a parking stop of a vehicle; And
When checking the parking stop of the vehicle by the parking sensor, driving the lift drive unit to control the solar power generator to be exposed to the outside of the vehicle body, and drive the light collecting plate by the theoretical value calculated by the main solar position calculator. Drive control unit to adjust the position of the light collecting plate, and receive the position measurement value for the adjusted light collecting plate from the light collecting plate position detection unit and compare with the theoretical value, the position of the light collecting plate by the difference between the theoretical value and the measured value An electric vehicle having a solar position tracking system comprising a; main control unit for controlling to adjust the correction.
According to claim 1, The light collecting plate position detection unit,
A plurality of GPS receivers respectively installed at different positions in the light collecting plate and obtaining respective position information from GPS satellites;
And a position calculation unit for calculating an actual position (posture) of the light collecting plate based on the coordinate values acquired by the plurality of GPS receivers. The method of claim 2, wherein the plurality of GPS receivers,
A first GPS receiver disposed at the center of the light collecting plate;
A second GPS receiver installed on the light collecting plate so that the first GPS receiver is spaced apart from each other in a first axis (X) direction and is in the same line as the first GPS receiver in a second axis (Y) direction; And
The first GPS receiver is spaced apart from each other in the first axis (X) and second axis (Y) directions, and the second GPS receiver is disposed at an edge portion of the light collecting plate so as to be spaced apart only in the second axis (Y) direction. An electric vehicle having a solar positioning system, comprising: a third GPS receiver. 4. The method according to any one of claims 1 to 3,
Installed on the vehicle body further comprises a solar sensor for sensing the sun,
The main control unit is an electric vehicle having a solar position tracking system, characterized in that the control to move so that the lifting and driving unit is exposed to the outside of the vehicle body only when the solar light sensor detects sunlight in the stop state. The method of claim 4, wherein
The ceiling of the vehicle body is provided with an accommodating portion for accommodating the solar power generator, and the accommodating portion is provided with a solar position tracking system, which is selectively opened and closed by an opening / closing door installed in the automobile body. Electric car. 4. The method according to any one of claims 1 to 3,
Further comprising a traveling speed detecting unit for detecting the traveling speed of the vehicle,
The main controller compares the traveling speed of the vehicle detected by the traveling speed detector with a reference speed, and exposes the solar generator to the outside of the vehicle body only when the detected traveling speed is less than the reference speed. An electric vehicle having a solar position tracking system, characterized in that to control to. According to any one of claims 1 to 3, wherein the light collecting plate drive unit,
A first driving part installed in the elevating driving unit and rotating the rotating plate about a third axis Z orthogonal to each of the first and second axes;
And a plurality of cylinders connected between the rotating plate and the light collecting plate and installed to be adjustable in the third axis direction, each of which is independently driven.
The electric vehicle having a solar position tracking system, characterized in that the posture adjustment is possible by rotating the light collecting plate about the second axis direction by driving the plurality of cylinders independently.

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