KR20110041795A - System and method of controling pick-up mechanism of current collector for a non-contact electromagnetic inductive charging electric vehicle - Google Patents

Abstract

PURPOSE: A system and method for controlling a current collector for a non-contact electromagnetic inductive charging electric vehicle are provided to supply power to an electric vehicle to charge and efficiently control the current collector which collects currents by magnetic fields generated from a coil embedded in a road. CONSTITUTION: A speed measuring unit(30) measures the speed of a vehicle. A sensor unit(40) senses whether the vehicle is being charged. A distance measuring unit measures the distance between a second coil and a road. A controller(60) determines whether an actuator is driven based on the speed of the vehicle and whether the vehicle is being charged and controls the actuator based on the measured distance.

Description

Non-contact magnetic induction charging system up and down control system and method for electric vehicle current collector

The present invention relates to an electric vehicle current collector up and down control system and method of a non-contact magnetic induction charging method, more specifically, a current collector for receiving power from the coil of the road in consideration of both the state of the vehicle and the road surface state The present invention relates to an electric vehicle current collector up and down control system and method of a non-contact magnetic induction charging method for driving up and down.

The demand for automobiles is exploding with economic development, and as the demand for automobiles increases, the exhaust gas emitted from automobiles is the main cause of environmental pollution.

Accordingly, there is a demand for reducing the emission of automobiles, and research and development of automobiles that can reduce the emission of gas are proceeding. Furthermore, commercialization of electric vehicles that do not generate emissions is partially attempted.

An electric vehicle refers to a vehicle that operates by using electricity as a power source, and includes a battery that can be charged as a power source in the vehicle itself, and operates by using electric power supplied from the mounted battery.

An electric vehicle is mainly composed of an electric motor driven by electricity to drive an electric vehicle, and a battery for supplying electricity to the electric motor.

Recently, the plug-in method has been mainly used and developed to supply and charge electricity to the battery. The plug-in method refers to a method of supplying and charging power to a battery once through a plug-in charging device of an electric vehicle and operating the electric vehicle by using the same.

The plug-in method takes a long time to charge the battery for an electric vehicle, and the distance driven by charging once is limited. In general, charging of an electric vehicle takes about 1 to 8 hours, and it is difficult to manage the vehicle safely during such a long charging time.

Therefore, the electric vehicle has to be frequently charged in order to secure the intended travel distance, so the installation of the charging station and the charging system are very important issues in the operation of the electric vehicle.

In addition, the charging should be performed while being not affected by the external environment such as rain or snow during charging. Furthermore, when the charging system of an electric vehicle is shaped like a current gas station, it cannot meet the demand for charging.

As such, there is a need for a charging system suitable for commercialization of electric vehicles.

One object of the present invention is to provide an electric vehicle current collector up and down control system and control method of a non-contact magnetic induction charging method that can supply and charge electric vehicle electric power by using a magnetic field generated from a coil embedded in a road.

In addition, another object of the present invention is to provide a non-contact magnetic induction charging system up and down control system and control method capable of efficiently controlling the operation of the current collector for collecting the magnetic field generated from the coil embedded in the road. It is.

In order to achieve the above object of the present invention, the electric vehicle current collector up and down control system of the non-contact magnetic induction charging method according to the embodiments of the present invention is provided at the bottom of the vehicle, and is generated from the first coil embedded in the road. The present invention is applied to an electric vehicle having a second coil for generating organic power by using a magnetic field and an actuator for driving the second coil in a vertical direction based on a road surface of the road. Accordingly, the present system includes a speed measuring unit for measuring the speed of the vehicle, a charge sensor unit for sensing whether the vehicle is being charged, and a distance measuring unit for measuring the distance between the second coil and the road surface of the road. And a control unit for controlling the operation of the actuator. In particular, the controller determines whether to drive the actuator based on the speed of the vehicle received from the speed measuring unit and whether the vehicle received from the charging presence sensor unit is being charged, and received from the distance measuring unit. Control the operation of the actuator based on the distance.

In embodiments of the present invention, the speed measuring unit may include a motor control system (MCU) for controlling a motor for driving the vehicle, and a rotation speed measuring sensor for measuring the rotation speed of the wheel.

In some embodiments of the present disclosure, the charging presence sensor unit may be linked with a regulator that provides a charging voltage to a battery of the vehicle or a battery management system (BMS) that manages a state of the battery. Can sense and determine whether or not.

In embodiments of the present invention, the controller drives the actuator when the speed of the vehicle is zero and the vehicle is charging.

In embodiments of the present invention, at least one system is disposed at a front end of the vehicle and includes a first distance measuring unit configured to measure a first distance between one end of the second coil and the road surface, and a rear end of the vehicle. At least one is disposed, the second distance measuring unit for measuring the second distance between the other end and the road surface opposite to the one end of the second coil, interlocked with the first distance measuring unit, corresponding to the first distance A first actuator for driving one end of the second coil in the vertical direction, and the second actuator is interlocked with the second distance measuring unit, and drives the other end of the second coil in the vertical direction corresponding to the second distance. It may include.

On the other hand, when the first distance and the second distance received from each of the first distance measuring unit and the second distance measuring unit are different from each other, the controller corresponds to each of the first distance and the second distance. The first actuator and the second actuator may be controlled to drive one end and the other end of the coil differently.

In order to achieve the above-described objects of the present invention, a method for vertically controlling a current collector for an electric vehicle of a non-contact magnetic induction charging type according to embodiments of the present invention uses organic fields generated from a first coil embedded in a road to generate organic power. Applied to an electric vehicle having a second coil to generate, and an actuator for driving the second coil in the vertical direction based on the road surface of the road. According to the present invention, first, speed information of the vehicle and information of whether the vehicle is being charged are received. Then, it is determined whether the actuator is driven based on the speed information of the vehicle and the information on whether the vehicle is being charged. When the driving of the actuator is determined according to the determination result, distance information between the second coil of the vehicle and the road surface of the road is received. Subsequently, the actuator is operated up and down in response to the distance information.

In embodiments of the present invention, in determining whether the actuator is driven, the speed information of the vehicle and the information of whether the vehicle is being charged may be considered at the same time. For example, when the speed of the vehicle is zero and the vehicle is charging, the actuator may be driven.

In embodiments of the present disclosure, in the step of receiving distance information between the second coil and the road surface, first distance information between the front end portion of the second coil and the road surface and the rear end portion of the second coil and the Each of the second distance information between the road surfaces may be input. In the operation of operating the actuator up and down in response to the distance information, the front end of the second coil may be driven downward in response to the first distance information. The rear end of the second coil may be driven downward in response to the distance information.

According to the non-contact magnetic induction charging type electric vehicle current collector up and down control system and method according to the present invention as described above has the following effects.

First, by receiving power from the coil embedded in the road, it is possible to eliminate the inconvenience of charging in a specific place.

Second, by being frequently supplied with power during parking or stopping on the road, charging time can be significantly reduced and battery capacity can be reduced.

Third, damage to the current collector can be prevented by driving the current collector up and down using state information of the road surface in addition to the vehicle speed information and charging information.

Fourth, it is possible to maximize the efficiency of the current collector by controlling the vertical drive of the front end and the rear end of the coil disposed in the lower end of the vehicle, respectively.

With reference to the accompanying drawings will be described in detail with respect to the electric vehicle current collector up and down control system and method of the non-contact magnetic induction charging method according to embodiments of the present invention. As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structure is shown to be larger than the actual size for clarity of the invention, or to reduce the actual size to understand the schematic configuration.

In addition, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is a block diagram illustrating a vertical control system for a current collector of an electric vehicle of a non-contact magnetic induction charging type according to embodiments of the present invention, and FIG. 2 illustrates an embodiment of the vertical control system disclosed in FIG. 1. It is a block diagram for.

Referring to FIG. 1, an electric vehicle current collector up and down control system (hereinafter referred to as 'the present system') of a non-contact magnetic induction charging type according to an embodiment of the present invention may be generated from a first coil 5 embedded in a road. It is a control system for driving the second coil 10, which is a current collector for an electric vehicle, to generate organic power using a magnetic field in the vertical direction.

The system 1 according to the embodiments of the present invention includes an actuator 20 for driving the second coil 10 up and down, a speed measuring unit 30 for measuring the speed of the vehicle, and sensing whether the vehicle is charged or not. Control the operation of the actuator 20 by using the charge presence sensor unit 40, the distance measuring unit 50 for measuring the distance between the second coil 10 and the road surface of the road and the information received from the measuring unit and the sensor unit It consists of a control unit 60.

The second coil 10 may have a linear shape extending in the front-rear direction of the vehicle, and the plurality of second coils 10 may extend in the left-right direction of the vehicle. Alternatively, the second coil 10 may have a surface shape having a predetermined area on the lower surface of the vehicle.

The actuator 20 drives the second coil 10 in the up and down direction based on the road surface. The actuator 20 lowers the second coil 10 located at the bottom of the vehicle toward the road surface of the road to charge the battery, and moves the second coil 10 to the road when charging is completed or when the vehicle is running. Is operated from the road surface direction.

For example, the actuator 20 may be formed of a cylinder for driving the second coil 10 up and down. However, the actuator 20 is not limited to the cylinder and may be formed of various driving devices capable of driving the second coil 10 up and down.

The speed measuring unit 30 measures the speed of the vehicle. The speed measuring unit 30 transmits the measured speed information to the control unit 60. In embodiments of the present invention, the speed measuring unit 30 is a motor control system (motor control system, MCU), such as a transmission for controlling the electric motor for driving the vehicle, a rotation speed measuring sensor for measuring the number of revolutions of the wheel And so on. On the other hand, the speed measuring unit 30 includes a variety of devices, modules that can measure the speed of the vehicle and transmit it to the control unit 60, it will not be limited to the motor control system and the wheel speed measurement sensor.

The charging sensor 40 detects the charging of the vehicle. The charging sensor unit 40 transmits charging information of the vehicle to the controller 60. In the embodiment of the present invention, the charging presence sensor unit 40 is to sense whether the vehicle is currently being charged, not sensing the state of being charged in the battery of the vehicle, that is, the degree of charge.

For example, the charging presence sensor unit 40 may determine whether the vehicle is being charged by interworking with a regulator that provides a charging voltage to the battery of the vehicle or a battery management system (BMS) that manages the state of the battery. Can be. Meanwhile, the charging presence sensor unit 40 may sense the charging state of the vehicle by interlocking with other charging systems without interworking with the regulator and the BMS.

The distance measuring unit 50 measures the distance between the second coil and the road surface. The distance measuring unit 50 transmits the measured distance information to the control unit 60. In embodiments of the present invention, the distance measuring unit 50 includes various sensors capable of measuring the distance between the lower surface of the vehicle and the road surface. For example, the distance measuring unit 50 may include an ultrasonic sensor, an infrared sensor (IR sensor), a height sensor, a light sensor, and the like.

The controller 60 controls the operation of the actuator 20. In this case, the controller 60 may lower the second coil 10 through the actuator 20 and position the vehicle adjacent to the road surface when the vehicle is parked or stopped and is being charged. Therefore, the controller 60 controls the operation of the actuator 20 based on the information received from the speed measuring unit 30, the charge presence sensor unit 40, and the distance measuring unit 50.

In the embodiment of the present invention, the control unit 60 is based on the speed information of the vehicle received from the speed measuring unit 20 and whether the vehicle received from the charging presence sensor unit 40 is charging of the actuator 20 Determine whether it is running. For example, the controller 60 controls the operation of the actuator 20 to be started when the vehicle is stopped or parked, that is, when the speed of the vehicle is '0' and the vehicle is being charged. As described above, the start of the operation of the actuator 20 considers the speed information of the vehicle and the information on whether the vehicle is charged.

In addition, the controller 60 controls a specific operation of the actuator 20 based on the distance received from the distance measuring unit 50. That is, the controller 60 may control the operation of the actuator 20 in response to the distance between the second coil 10 and the road surface. For example, when the distance information between the second coil 10 and the road surface is small, the controller 60 may reduce the falling degree of the second coil 10 through the actuator 20, and the second coil 10 may be reduced. ) And the distance information between the road surface is large, it is possible to increase the degree of falling of the second coil 10 via the actuator (20).

As described above, the controller 60 drives the second coil 10, which is the current collector, up and down in consideration of the state of the road surface during the parking / stopping and charging of the vehicle through the speed information and the charging status information. The coil 10 may be prevented from being damaged and the charging efficiency may be improved by driving the second coil 10 adjacent to the road surface.

Referring to FIG. 2, the system 1 includes a first distance measuring unit 50a and a first actuator 20a disposed at a front end of a vehicle, and a second distance measuring unit 50b disposed at a rear end of a vehicle. And a second actuator 20b.

At least one first distance measuring unit 50a is disposed at the front end of the vehicle and measures a first distance between one end of the second coil 10 and the road surface. At this time, one end of the second coil 10 refers to the front end of the second coil 10 formed long before and after the vehicle.

At least one second distance measuring unit 50b is disposed at the rear end of the vehicle and measures a second distance between the other end of the second coil 10 and the road surface. At this time, the other end of the second coil 10 refers to the rear end of the second coil 10 formed long before and after the vehicle.

Therefore, the first distance measuring unit 50a and the second distance measuring unit 50b may measure the distance between the front end and the road surface of the second coil 10 and the distance between the rear end and the road surface, respectively.

The first actuator 20a communicates with the first distance measuring unit 50a. The first actuator 20a drives one end of the second coil 10 in the vertical direction corresponding to the first distance received from the first distance measuring unit 50a.

The second actuator 20b communicates with the second distance measuring unit 50b. The second actuator 20b drives the other end of the second coil 10 in the vertical direction corresponding to the second distance received from the second distance measuring unit 50b.

Therefore, the first actuator 20a and the second actuator 20b may drive the front and rear ends of the second coil 10 up and down based on the road surface, respectively.

In the embodiments of the present invention, when the first distance and the second distance measured from the first distance measuring unit 50a and the second distance measuring unit 50b are different from each other, the controller 60 controls the first actuator ( One end of the second coil 10 may be vertically driven corresponding to the first distance through 20a, and the other end of the second coil 10 may be vertically driven corresponding to the second distance through the second actuator 20b. have. That is, the controller 60 may control the vertical driving of the front and rear ends of the second coil 10 through the distance measuring units 50a and 50b and the actuators 20a and 20b respectively disposed at the front and rear ends of the vehicle. have.

Therefore, the controller 60 controls the front and rear ends of the second coil 10 differently in the case of irregular road surface, thereby preventing the second coil 10 from being damaged by the irregular road surface and correspondingly to the irregular road surface. The second coil 10 may be adjacent to maximize charging efficiency.

3 is a flowchart illustrating a method of controlling a current collector up and down in a non-contact magnetic induction charging method according to embodiments of the present invention.

Referring to FIG. 3, according to the method for controlling the current collector up and down of an electric vehicle current collector for non-contact magnetic induction charging according to an embodiment of the present invention, first, the control unit receives speed information of the vehicle (S10) and determines whether the vehicle is being charged. Receive (S20).

Specifically, the controller receives the vehicle speed information from the speed measuring unit and receives the vehicle charging information from the charge presence sensor unit. In an embodiment of the present invention, the control unit may receive the speed information and the charging information, either sequentially or simultaneously, and does not give priority to any other information. That is, the controller may first receive the information on whether the vehicle is charged and later receive the speed information of the vehicle, and may receive the same at the same time.

Subsequently, the controller determines whether the actuator starts to operate using the speed information of the vehicle and the presence / absence information of the vehicle (S30).

Specifically, the controller considers both the vehicle speed information and the vehicle charging information in relation to the start of the operation of the actuator. In embodiments of the present invention, the controller operates the actuator when the vehicle speed is '0' and the vehicle is charging.

When the speed of the vehicle is '0' and the vehicle is being charged, the controller receives distance information between the vehicle and the road surface (S40).

Specifically, the distance measuring unit measures the distance between the second coil and the road surface provided on the lower surface of the vehicle, and the controller receives the distance information from the distance measuring unit.

Subsequently, the controller drives the actuator in response to the distance information (S50).

Specifically, the control unit drives the second coil up and down on the basis of the road surface through the actuator in response to the distance information. For example, when the distance difference between the second coil and the road surface is small, the controller lowers the second coil slightly, and when the distance difference is large, the controller lowers the second coil relatively much.

Meanwhile, the controller may receive first distance information between the front end of the second coil and the road surface and second distance information between the rear end of the second coil and the road surface, respectively. The controller may vertically drive the front end of the second coil in response to the first distance information, and may drive the rear end of the second coil up and down in response to the second distance information.

On the other hand, when the speed of the vehicle is not '0' or not charging, the control unit does not operate the actuator (S60).

Specifically, when the speed of the vehicle is not '0', that is, when the vehicle is driving, the controller does not operate the actuator. This is because if the controller operates the actuator to lower the second coil while the vehicle is running, the second coil may be damaged by the road surface. Similarly, if the speed of the vehicle is '0' but not charging, the control unit does not operate the actuator. This is because the vehicle does not need to be lowered when the vehicle is parked / stopped but charging of the vehicle is completed.

As such, the controller starts driving the actuator during vehicle parking / stopping and charging by using the speed information and the presence / absence information, and drives the second coil up and down by using the distance information between the second coil and the road surface, thereby causing irregular road surface. The second coil may be prevented from being damaged by the second coil, and the charging efficiency may be improved by adjoining the second coil to the road surface.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

1 is a block diagram illustrating a system for controlling a current collector up / down of an electric vehicle of a non-contact magnetic induction charging method according to embodiments of the present invention.

FIG. 2 is a configuration diagram illustrating an embodiment of the up and down control system disclosed in FIG. 1.

3 is a flowchart illustrating a method of controlling a current collector up and down in a non-contact magnetic induction charging method according to embodiments of the present invention.

<Description of the symbols for the main parts of the drawings>

1: current collector up and down control system 5: first coil

10: second coil 20: actuator

30: speed measurement unit 40: charging presence sensor unit

50: distance measuring unit 60: control unit

Claims (10)

A second coil provided at a lower end of the vehicle and generating organic power by using a magnetic field generated from a first coil embedded in a road, and the second coil in a vertical direction based on a road surface of the road; In an electric vehicle having an actuator for driving, A speed measuring unit for measuring the speed of the vehicle; A charge presence sensor unit for sensing whether the vehicle is being charged; A distance measuring unit for measuring a distance between the second coil and the road surface of the roadway; And Determines whether the actuator is driven based on the speed of the vehicle received from the speed measuring unit and whether the vehicle received from the charging presence sensor unit is being charged, and based on the distance received from the distance measuring unit. Current control device up and down control system for an electric vehicle of a non-contact magnetic induction charging method including a control unit for controlling the operation of the actuator. The method of claim 1, wherein the speed measuring unit Non-contact magnetic induction charging type electric vehicle current collector, characterized in that at least one of a motor control system (motor control system, MCU) for controlling the motor for driving the vehicle, the rotation speed measurement sensor for measuring the rotation speed of the wheel. Top and bottom control system. The method of claim 1, wherein the charge presence sensor unit In the non-contact magnetic induction charging method characterized in that it is connected to a regulator for providing a charging voltage to the battery of the vehicle or a battery management system (BMS) that manages the state of the battery whether the vehicle is charging. Electric vehicle current collector up and down control system. The method of claim 1, wherein the control unit And a non-contact magnetic induction charging type up and down control system for driving the actuator when the speed of the vehicle is 0 and the vehicle is being charged. The method of claim 1, A first distance measuring unit disposed at a front end of the vehicle and measuring a first distance between one end of the second coil and the road surface; A second distance measuring unit disposed at a rear end of the vehicle and measuring a second distance between the other end opposite to one end of the second coil and the road surface; A first actuator linked to the first distance measuring unit and configured to drive one end of the second coil in a vertical direction corresponding to the first distance; And And a second actuator linked to the second distance measuring unit and configured to drive the other end of the second coil in a vertical direction in correspondence with the second distance. Device up and down control system. The method of claim 5, When the first distance and the second distance received from the first distance measuring unit and the second distance measuring unit are different from each other, The control unit controls the first actuator and the second actuator to respectively drive one end and the other end of the second coil differently up and down corresponding to the first distance and the second distance, respectively. Charge control electric vehicle current collector up and down control system. A second coil provided at a lower end of the vehicle and generating organic power by using a magnetic field generated from a first coil embedded in a road, and the second coil in a vertical direction based on a road surface of the road; In an electric vehicle having an actuator for driving, Receiving speed information of the vehicle; Receiving information on whether the vehicle is being charged; Determining whether the actuator is driven based on speed information of the vehicle and information on whether the vehicle is being charged; Receiving the distance information between the second coil of the vehicle and the road surface of the road when driving of the actuator is determined according to the determination result; And A method of controlling a current collector of an electric vehicle for a non-contact magnetic induction charging method, the method comprising operating the actuator in response to the distance information. The method of claim 7, wherein the determining whether the actuator is driven A method for controlling the up-and-down control of a current collector for an electric vehicle of a non-contact magnetic induction charging method, wherein the speed information of the vehicle and information of whether the vehicle is being charged are simultaneously considered. The method of claim 8, And a non-contact magnetic induction charging type up and down control method for driving the actuator when the speed of the vehicle is 0 and the vehicle is being charged. The method of claim 7, wherein the step of receiving the distance information between the second coil and the road surface Receiving first distance information between the front end of the second coil and the road surface and second distance information between the rear end of the second coil and the road surface; Operating the actuator in response to the distance information; The electric vehicle of the non-contact magnetic induction charging method, characterized in that for driving the front end of the second coil to the bottom in correspondence to the first distance information and the rear end of the second coil to the bottom in response to the second distance information. Current collector up and down control method.

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