KR101197317B1 - Device and method for dynamic configuration of electric power path in electric vehicle - Google Patents

Abstract

The present invention relates to an apparatus and method for dynamically setting an electric power path of an on-line electric vehicle. More particularly, the on-line electric vehicle automatically recognizes a connected electric power device and automatically sets basic specifications of the electric power device. A device and a method for dynamically setting a power path between devices.

According to the present invention, by providing the automatic recognition of the power device and automatic setting of the basic specifications, so that the performance test conducted by connecting the power devices of various specifications during the development of the electric vehicle can be efficiently performed, the configuration module of the online electric vehicle The development of interoperability technology and maintenance convenience technology will contribute to the standardization of electric vehicle power device development.

In addition, according to the present invention, it is possible to automatically distinguish between driving on a road and driving on a normal road, and automatically sets the power source of the driving motor to a power supply device installed on a road or a battery attached to a vehicle, and the amount of charge of the battery when running on a feeding road may be insufficient. In this case, stable driving is possible by operating in the automatic charging mode.

Electric Vehicle, Power Device, Dynamic Setting, Current Collector, Motor, Battery

Description

DEVICE AND METHOD FOR DYNAMIC CONFIGURATION OF ELECTRIC POWER PATH IN ELECTRIC VEHICLE}

The present invention relates to an apparatus and method for dynamically setting an electric power path of an on-line electric vehicle. More particularly, the on-line electric vehicle automatically recognizes a connected electric power device and automatically sets basic specifications of the electric power device. A device and a method for dynamically setting a power path between devices.

The technique disclosed in the related art regarding the electric power path setting of an electric vehicle requires that electrical equipment for electric vehicles, such as a motor and a battery, having a predetermined specific specification, be installed at a predetermined fixed position. This has been a problem in the development of electric vehicles, performance tests that must be made by connecting power devices of various specifications in order to construct an efficient power, very troublesome and takes a lot of time and effort.

In addition, the related art of the electric vehicle proposes only the power supply by the power supply device or the power supply by the battery, there is a problem that can not be operated stably the power supply road and the general road.

The present invention was devised to solve such a problem, and by providing an automatic recognition of power devices and automatic setting of basic specifications, performance tests performed by connecting power devices of various specifications during electric vehicle development can be efficiently performed. The purpose of the present invention is to contribute to the standardization of electric vehicle power device development through the development of compatibility technology and maintenance convenience technology among the constituent modules of the online electric vehicle.

In addition, the present invention is to automatically distinguish between driving on the road and driving on the normal road, and automatically set the power source of the drive motor to the power supply device installed on the road or the battery attached to the vehicle, when the amount of charge of the battery when running on the feed road is insufficient Another purpose is to enable stable driving by operating in the automatic charging mode.

In order to achieve the above object, an apparatus for dynamically setting a power path in an on-line electric vehicle according to the present invention includes: a power device recognition unit for analyzing a device information message from each power device to identify a type of power device; For connecting and disconnecting power paths to power devices connected to each port, connect a high voltage DC relay for output switching to the power devices connected to each port and a high voltage DC relay for input switching from the power devices connected to each port. Switch unit provided; A driving unit driving the high voltage DC relay of the switch unit; From the information of the identified power devices, a drive signal for driving a high voltage DC relay for output switching of each power device and a high voltage DC relay for input switching to control the dynamic setting of the power path is transmitted to the driver. A power control unit; An overcurrent and overvoltage detector for detecting overvoltage and overcurrent of each power device; And a controller for controlling all the components of the power path dynamic setting device of the online electric vehicle to perform a series of processes for the power path dynamic setting.

The device information message may be a message according to a controller area network (CAN) communication scheme.

The power path dynamic setting device of the on-line electric vehicle may further include a CAN overcurrent blocking unit to block overcurrent during CAN communication.

The switch unit may further include a spark remover for preventing spark during switching.

According to another aspect of the present invention, a method for setting a power path between power devices by a power path dynamic setting device of an online electric vehicle includes: (a) receiving device information messages from a power device including a battery, a current collector and a motor; Making; (b) identifying the type of power device from the device information message; (c) determining whether a road feeding device is installed; (d) determining a state of charge (SOC) of the battery; (e) If it is determined in step (c) that the road is equipped with a power feeding device, the power path for driving the motor is set from the current collector to the motor, and if it is determined that the road is not installed, the power path for driving the motor. Setting from the battery to the motor; And (f) setting the power path for charging the battery from the current collector to the battery when the SOC identified in the step (d) is less than or equal to a preset reference when the power supply device is determined as the road in which the power feeding device is installed. Include.

In step (e), when the power supply device is not installed on the road, each power device may be operated at lower power than when the power supply device is installed on the road.

After the step (f), (f1) if it is determined in the step (c) that the power supply device is not installed, if the SOC identified in the step (d) is less than the predetermined standard to provide a warning message to the driver's instrument panel It may further comprise a step.

After the step (f), (f2) if it is determined in step (c) that the power supply device is not installed, if the SOC determined in the step (d) is less than or equal to a predetermined reference, power to specific power devices is returned. The method may further include stopping.

According to the present invention, by providing the automatic recognition of the power device and automatic setting of the basic specifications, so that the performance test conducted by connecting the power devices of various specifications during the development of the electric vehicle can be efficiently performed, the configuration module of the online electric vehicle The development of interoperable technology and maintenance convenience technology can contribute to the standardization of electric vehicle power device development.

In addition, according to the present invention, it is possible to automatically distinguish between driving on a road and driving on a normal road, and automatically sets the power source of the driving motor to a power supply device installed on a road or a battery attached to a vehicle, and the amount of charge of the battery when running on a feeding road may be insufficient. In this case, there is an effect of enabling stable running by operating in the automatic charging mode.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a diagram illustrating a road on which a power feeding device for supplying power in a self-induction method and an electric vehicle 100 supplied with power therefrom.

Referring to the drawings, one embodiment of a power feeding device 200 buried under the road 10 to provide electric power to the electric vehicle 100 is shown as a top view 1, a side view 2 and a front view 3. have. The power supply device 200 may include a power supply line 230 that generates a magnetic field through a current flow, a power supply core 210 installed below the power supply line 230, and magnetic poles bent in a 'U' shape on both sides of the power supply core ( 220 may be provided. This is one embodiment, the feed core does not necessarily have a U-shape, may have a flat plate shape. The magnetic field generated by the feeder line 230 is generated on the road through the upper ends of the magnetic poles 220 on both sides, and the electric power is supplied to the current collector 110 attached to the vehicle 100 in a magnetic induction manner by the magnetic field generated. Will be delivered.

2 is a diagram illustrating a configuration of an apparatus 300 for dynamically setting a power path of an online electric vehicle according to the present invention.

The power path dynamic setting device 300 of the online electric vehicle includes a control unit 310, a power device recognition unit 320, a power control unit 330, a driving unit 340, and a switch unit 350, and shut off CAN overcurrent. The unit 360 may further include an overvoltage and overcurrent detector 370.

The controller 310 controls each component of the power path dynamic setting apparatus 300 of the online electric vehicle, which will be described below, and performs a series of processes for power path dynamic setting.

The power device recognition unit 320 analyzes the device information message from each power device 30 to identify the type of power device. The device information message may be a message according to a controller area network (CAN) communication scheme. CAN (Controller Area Network) is a bus communication method for communicating data by connecting two or more microcontrollers when they exist. In the case of automobiles, the use of electronic control components has increased, and a communication method for managing them efficiently has been required. This is a CAN bus. The identification of the type of power device 30 may be made by the device ID of this CAN communication message.

The power controller 330 controls the dynamic setting of the power path from the information of the identified power devices, and drives a drive signal for driving the high voltage DC relay 351 (see FIG. 2) of the switch unit 350 by the driver 340. To pass. An embodiment of the power path dynamic setting will be described later with reference to FIGS. 4 to 7.

The driver 340 drives the high voltage DC relay 351 of the switch 350 under the control of the power controller 330. The high-voltage DC relay 351 is used as a switch in the switch unit 350 serves to open and close the power path connected to each of the power devices 30.

The switch unit 350 includes a switch for connecting and disconnecting paths to the respective power devices 30 according to an operation signal of the driving unit 340 under the control of the power control unit 330. A contact type switching device of the high voltage DC relay 351 as shown in FIG. 3 is used. This can minimize the decrease in power switching efficiency due to self-heating of the SCR and IGBT devices. The switch unit 350 includes an output switch to each power device 30 and an input switch from the power device 30 to control the input and output of power. The battery, current collector, motor, and the like shown in FIG. 2 are one embodiment of a power device, and in addition, a plurality of power devices may be connected.

The power path dynamic setting device 300 of the online electric vehicle may further include a CAN overcurrent blocking unit 360 to block overcurrent generated in the CAN communication device of each power device.

In addition, the power path dynamic setting device 300 of the on-line electric vehicle may further include an overvoltage and overcurrent detector 370 that detects overvoltage and overcurrent generated in each power device to increase stability of the power control system. For example, the counter electromotive force generated when the motor stops and the unstable ripple voltage of the current collector regulator can be detected.

3 is a diagram illustrating an embodiment of the configuration of the switch unit 350. The contact type switching device of the high-voltage DC relay 351 is used, and as described above with reference to FIG. 2, it is possible to minimize the decrease in power switching efficiency due to self-heating of the SCR and IGBT elements. The switch unit 350 has an output switch to each power device 30 and an input switch from the power device 30 as shown, to control the input and output of power. The switch unit 350 may further include a spark killer to prevent sparks during switching.

4 is a flowchart illustrating an embodiment of a method for dynamically setting a power path of an online electric vehicle according to the present invention. In particular, an embodiment of a power path setting method of an online electric vehicle having two power sources of a power supply device installed on a road and a battery attached to a vehicle is shown.

The power line of each power device 30 is connected to the power line port (S401). Examples of the power device may include a current collector, a battery, a motor, and the like as described with reference to FIG. 1. A data transmission / reception device of each power device may be connected to the data communication port (S401), and as described above, when using a CAN (controller area network) communication method, a CAN transceiver of each power device is connected. Thereafter, the control unit 310 issues a power device recognition execution command to the power device recognition unit 320, and the power device recognition unit 320 receives a message from a data communication port paired with each power line port (S402), CAN If you use a communication method, you will receive a CAN message. The type of each power device 30 is determined from the data of the ID field included in the message (S403), and the power controller 330 controls the power path based on the information according to the identified device type. do.

The electric vehicle determines whether the entered road is a road in which the power feeding device 200 is embedded (S404), and determines the state of charge (SOC) of the battery attached to the electric vehicle (S405). When the road being driven is a feeding road (S406), the electric power path may be set by the current collector 110, which has received power from the power feeding device 200 in a magnetic induction manner by the magnetic field, to the motor (S407). That is, to use a power supply device installed on the road as the power source of the electric vehicle driving motor, which is shown by the power path arrow 54 in FIG. In this case, if the SOC is below a predetermined standard, for example, 80% or less (S408), the power path is set from the current collector to the battery (S409), so that the power collected by the current collector is not only used as a motor driving source but also for charging the battery. Will also be used. This is illustrated by the power path arrow 55 in FIG.

On the other hand, if the road being driven is a general road rather than a feeding road (S406), the power path is set from the battery attached to the motor to the motor (S410) and the battery is used as a power source of the electric vehicle driving motor. This is illustrated by the powerpath arrow 56 in FIG. As such, when driven by a battery, it is preferable to run at a low power, unlike when the power is supplied from the power feeding device (S411). In this case, if the SOC is below a certain standard, for example, 50% or less (S412), a warning message for charging the battery can be displayed on the driver's seat panel, and power consumption can be saved by cutting off power to the secondary electronics. There is (S413).

FIG. 5 is a diagram illustrating a case in which a power path is set to use power collected by a current collector as a motor driving source as an embodiment of a process of controlling a switch for dynamically setting an electric power path of an online electric vehicle.

Ports 380 and switches 350 and power buses 390 are shown that connect to each power device, such as a current collector, a motor, a battery, and the like. In the drawing, the power device is briefly illustrated as one switch, but as described above with reference to FIG. 3, an output switch to each power device and an input switch from the power device are provided to control input and output of power. can do. In this case, the power switch is set so that the input switch 51 from the current collector and the output switch 53 to the motor are connected, and the switch 52 is disconnected from the battery so that power is transferred from the current collector to the motor. (54).

6 is another embodiment of a process of controlling a switch for dynamically setting an electric power path of an online electric vehicle, and sets a power path for using the electric power collected at the current collector as a motor driving source, and at the same time Is a diagram illustrating a case where a power path for use for charging a battery is also set.

In this case, the input switch 51 from the current collector and the output switch 53 to the motor are connected, and the switch 52 is also connected to the battery, thereby driving the motor so that electric power is transferred from the current collector to the motor. The power path is set not only for the power path (54) but also for the power to be transferred from the current collector to the battery (55).

FIG. 7 is a diagram illustrating a case in which a power path for using a battery attached to a vehicle as a motor driving source is set as another embodiment of a process of controlling a switch for dynamically setting the power path of an online electric vehicle.

In this case, the switch 51 connected to the current collector is cut off, the input switch 52 from the battery and the output switch 53 to the motor are connected, so that electric power is transferred from the battery to the motor. Is set (56).

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims to be described.

1 is a diagram illustrating a road on which a power feeding device is installed to supply power in a magnetic induction manner, and an electric vehicle supplied with power therefrom.

2 is a view showing the configuration of a power path dynamic setting device of an on-line electric vehicle according to the present invention.

3 is a view showing an embodiment of a configuration of a switch unit;

4 is a flowchart illustrating an embodiment of a method for dynamically setting a power path of an online electric vehicle according to the present invention.

FIG. 5 is a diagram illustrating a case in which a power path is set to use power collected by a current collector as a motor driving source as an embodiment of a process of controlling a switch for dynamically setting an electric power path of an online electric vehicle.

6 is another embodiment of a process of controlling a switch for dynamically setting an electric power path of an online electric vehicle, and sets a power path for using the electric power collected at the current collector as a motor driving source, and at the same time Diagram showing a case where a power path for using the battery for charging a battery is also set.

FIG. 7 is a diagram illustrating a case in which a power path for using a battery attached to a vehicle as a motor driving source is set as another embodiment of a process of controlling a switch for dynamically setting an electric power path of an online electric vehicle.

Claims (11)

A device for dynamically setting power paths in an online electric vehicle. A power device recognition unit for analyzing a device information message from each power device to identify a type of power device; For connecting and disconnecting power paths to power devices connected to each port, connect a high voltage DC relay for output switching to the power devices connected to each port and a high voltage DC relay for input switching from the power devices connected to each port. Switch unit provided; A driving unit driving the high voltage DC relay of the switch unit; From the information of the identified power devices, a drive signal for driving a high voltage DC relay for output switching of each power device and a high voltage DC relay for input switching to control the dynamic setting of the power path is transmitted to the driver. A power control unit; An overcurrent and overvoltage detector for detecting overvoltage and overcurrent of each power device; And Control unit for controlling all the components of the power path dynamic setting device of the on-line electric vehicle to perform a series of processing for the power path dynamic setting Power path dynamic setting device of the online electric vehicle comprising a. Claim 2 has been abandoned due to the setting registration fee. The method according to claim 1, The device information message, The message according to the controller area network (CAN) communication method Power path dynamic setting device for an online electric vehicle, characterized in that. delete Claim 4 has been abandoned due to the setting registration fee. The method according to claim 2, CAN overcurrent breaker to cut off overcurrent during CAN communication Power path dynamic setting device of the online electric vehicle further comprising a. delete Claim 6 has been abandoned due to the setting registration fee. The method according to claim 1, The switch unit, Spark Eliminators Prevent Sparks During Switching Power path dynamic setting device of the online electric vehicle further comprising a. A method for dynamically setting a power path between power devices by a power path dynamic setting device of an on-line electric vehicle according to claim 1, (a) receiving a device information message from a power device including a battery, a current collector and a motor; (b) identifying the type of power device from the device information message; (c) determining whether a road feeding device is installed; (d) determining a state of charge (SOC) of the battery; (e) If it is determined in step (c) that the road is equipped with a power feeding device, the power path for driving the motor is set from the current collector to the motor, and if it is determined that the road is not installed, the power path for driving the motor. Setting from the battery to the motor; And (f) setting the power path for charging the battery from the current collector to the battery when the SOC determined in the step (d) is less than a predetermined standard when it is determined that the road is installed in the step (c); Power path dynamic setting method of an online electric vehicle comprising a. delete The method of claim 7, In step (e), For roads without power feeders, operating each power unit with lower power than roads with power feeders Dynamic path setting method of an online electric vehicle, characterized in that. The method of claim 7, After the step (f), (f1) if it is determined in step (c) that the road is not provided with a power supply device, providing a warning message to the driver's seat dashboard if the SOC determined in step (d) is less than or equal to a preset standard; Dynamic path setting method of the online electric vehicle further comprising a. The method of claim 7, After the step (f), (f2) if it is determined in step (c) that the road is not provided with a power supply device, stopping power to specific power devices if the SOC determined in step (d) is less than or equal to a predetermined standard; Dynamic path setting method of the online electric vehicle further comprising a.

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