WO2018199524A1 - Usb charging device of vehicle for actively switching fast charge and data communication of smart device mounted in vehicle and method therefor - Google Patents

Abstract

The present invention relates to a USB charging device of a vehicle and a method therefor which converts a voltage of battery power supply of a vehicle supplied through a smart adaptor which allows communication between a smart device and the vehicle into a predetermined USB bus voltage to supply an operating power supply to a USB power supply terminal of the smart device, and an ACC power supply of the vehicle supplied through the smart adaptor is analyzed, if the vehicle is running, a USB data terminal of the smart device is connected to the USB data terminal of the smart adaptor to operate as a data communication mode, and if the vehicle is not running, the USB data terminal of the smart device is connected to a fast charge circuit unit to operate as a fast charge mode.

Description

USSB charging device and method thereof for actively switching high-speed charging and data communication of smart devices mounted in a car

The present invention relates to a USS charging device and a method for charging a vehicle for actively switching fast communication and data communication of a smart device mounted on an automobile, and more particularly, the USS communication data of the smart device and can communication data of the vehicle. Converts the voltage of the vehicle's battery power, which is supplied through the smart adapter to communicate with the smart device, and converts it into a preset USB bus voltage to supply operating power to the USB terminal of the smart device. If the vehicle is running under the condition of analyzing the ACC power of the car supplied through the smart adapter, connect the USB data terminal of the smart device to the USB data terminal of the smart adapter to operate in data communication mode. If the vehicle is not in a driving condition, the U.S. charging device of the car for actively switching the fast charging and data communication of the smart device mounted in the car to be connected to the U.S. data terminal of the smart device to the fast charging circuit to operate in the fast charging mode And to a method thereof.

In general, the infotainment system of a car is a system in which IT technology is incorporated into a car and implements information and entertainment functions in the car.

The infotainment system of such a vehicle is similar to a smart device because it is equipped with a platform for playing music and video, an internet environment, and utilizing applications such as navigation.

However, the infotainment system of a car is not as portable as a smart device, and due to the peculiarity of the environment used, the software development time is longer than the smart device application development period and the life cycle is longer. As such, the infotainment system of an automobile is not suitable for the development environment of an application to meet the needs of various users who are rapidly changing according to environmental changes or trends.

Therefore, in recent years, smart devices are detachable to dashboards of automobiles, and infotainment systems are being implemented using smart devices mounted on dashboards.

In addition, a smart device mounted in a vehicle is generally connected to a vehicle through a universal serial bus (USB), and is operated by the USB power supply while the vehicle is in operation, and uses the USB power to charge the built-in battery.

However, when the smart device is used in the infotainment system of the car, the power consumption consumed more than the power supply through the USB and the battery charge amount by driving various applications, thereby reducing the use time of the smart device by discharging the battery of the smart device. In addition, the smart device may turn off while driving.

In particular, when the operation of the smart device is stopped while the vehicle is in operation, the driver cannot use the infotainment system of the vehicle, thereby reducing the convenience of driving the vehicle and increasing the possibility of causing a safety accident.

The present invention aims to solve all the above-mentioned problems.

Another object of the present invention is to provide an apparatus and a method for charging a USB of a vehicle, which can stably supply power of a smart device mounted on a vehicle.

In addition, the present invention is a USS charging apparatus and method for preventing the discharge of the smart device during driving of the vehicle by allowing the vehicle to be charged at a high speed with the battery power of the vehicle when the vehicle is not driving conditions. To provide another purpose.

In addition, another object of the present invention is to provide a USS charging device and method for preventing excessive vehicle power consumption by performing smart device fast charging in response to a battery power state of an automobile.

The characteristic structure of this invention for achieving the objective of this invention mentioned above, and realizing the characteristic effect of this invention mentioned later is as follows.

According to an embodiment of the present invention, in the USB charging apparatus for a vehicle for actively switching the fast charging and data communication of the smart device mounted on the vehicle, the USS communication data of the smart device and the can communication data of the vehicle By converting and transmitting each other, the voltage of the battery power source of the vehicle, which is supplied through the smart adapter for communication between the smart device and the vehicle, is converted into a predetermined USB bus voltage, thereby operating power to the USB terminal of the smart device. Regulator to supply; A first data terminal connected to the USB data terminal of the smart device, a 2-1 data terminal connected to the USB data terminal of the smart adapter, and 2-2 data connected to the fast charging circuit unit corresponding to the smart device A USB switch including a terminal, the first data terminal being connected to the 2-1 data terminal or the 2-2 data terminal in response to a predetermined control signal; And when the vehicle is in a driving condition, the first data terminal of the USB switch to be connected to the second-1 data terminal, and when the vehicle is not in a driving condition, the first data terminal of the USB switch. A control unit for controlling the USB switch so that a terminal is connected to the second-2 data terminal; There is provided a USS charging device for a vehicle comprising a.

According to one embodiment of the present invention, in the vehicle USD charging method for actively switching the fast charging and data communication of the smart device mounted on the vehicle, (a) the UBS charging device, the UBS communication data of the smart device And converts the CAN communication data of the vehicle with each other to convert the voltage of the battery power source of the vehicle, which is supplied through the smart adapter for communication between the smart device and the vehicle, to a predetermined USB bus voltage. Supplying operating power to a USB power terminal of the device, and analyzing the ACC power of the vehicle supplied through the smart adapter to determine whether the vehicle is in a driving condition; And (b) (i) if the vehicle is in a driving condition, the USB charging device connects the USB data terminal of the smart device to the USB data terminal of the smart adapter to operate in a data communication mode, and (ii) If the vehicle is not in a driving condition, the USS charging device to connect the USS data terminal of the smart device to a fast charging circuit to operate in a fast charging mode; There is provided a USS charging method of a vehicle comprising a.

According to another embodiment of the present invention, in the USB charging apparatus for a vehicle for actively switching the fast charging and data communication of the smart device mounted on the vehicle, the voltage of the power supplied from the battery of the vehicle is a preset USB bus voltage A regulator for supplying operating power to a USB power terminal of the smart device by converting to a power supply; A first data terminal connected to the USB data terminal of the smart device, a 2-1 data terminal connected to the USB data terminal of the vehicle, and a second-2 data terminal connected to the fast charging circuit unit corresponding to the smart device; And a USB switch for connecting the first data terminal to the 2-1 data terminal or the 2-2 data terminal in response to a predetermined control signal. And when the vehicle is in a driving condition, the first data terminal of the USB switch to be connected to the second-1 data terminal, and when the vehicle is not in a driving condition, the first data terminal of the USB switch. A control unit for controlling the USB switch so that a terminal is connected to the second-2 data terminal; There is provided a USS charging device for a vehicle comprising a.

According to another embodiment of the present invention, in the USB charging method of the vehicle for actively switching the fast charging and data communication of the smart device mounted on the vehicle, (a) the USB charging apparatus is supplied from the battery of the vehicle Converting a voltage of a battery power source into a predetermined USB bus voltage to supply operating power to a USB power terminal of the smart device, and analyzing the ACC power of the vehicle supplied from the vehicle to determine whether the vehicle is in a driving condition step; And (b) (i) the USS charging device connects the USS data terminal of the smart device to the USS data terminal of the car and operates in a data communication mode if the vehicle is running. If it is not a condition in which the device is operated, operating the fast charging mode by connecting the USB data terminal of the smart device to the fast charging circuit unit of the USB device; There is provided a USS charging method of a vehicle comprising a.

Since the present invention can stably supply power of a smart device mounted on a vehicle, it is possible to prevent an operation interruption due to the discharge of the smart device while driving the vehicle, thereby improving the convenience and stability of the user.

In addition, the present invention can stably maintain the power required for the operation of the smart device during driving of the vehicle by charging the smart device mounted on the vehicle at high speed with the battery power of the vehicle when the vehicle is not in the driving condition.

In addition, by performing the smart device fast charging in response to the battery power state of the vehicle of the present invention it is possible to prevent the problem that the vehicle is not running due to excessive consumption of battery power of the vehicle.

FIG. 1 schematically illustrates a state in which a smart device is mounted in a vehicle in a USB charging apparatus of a vehicle for actively switching fast charging and data communication of a smart device mounted in a vehicle according to an embodiment of the present invention. ,

FIG. 2 schematically illustrates a USB charging apparatus of a vehicle for actively switching fast charging and data communication of a smart device mounted on a vehicle according to an embodiment of the present invention.

FIG. 3 schematically illustrates an operation mode of a USB switch in a USB charging device of a car for actively switching fast charging and data communication of a smart device mounted on the car according to an embodiment of the present invention.

FIG. 4 schematically illustrates a USS charging apparatus of a vehicle for actively switching fast charging and data communication of a smart device mounted on the vehicle according to another embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

First, referring to FIG. 1, the smart device 10 may be attached to or detached from a dashboard of a vehicle, and may be mounted on the dashboard of the vehicle to implement an infotainment system of the vehicle.

In this case, the smart device 10 may include a tablet, a smartphone, a smart pad, a PDA, and the like, but is not limited thereto. The smart device 10 may perform a predetermined computing operation by a processor and provide various information for an infotainment system of a vehicle to a user. And, it may include all terminals capable of data communication through the USB.

FIG. 2 schematically illustrates a USS charging apparatus of a vehicle for actively switching fast charging and data communication of a smart device mounted on the vehicle according to an embodiment of the present invention. Referring to FIG. 2, FIG. The charging device 100 may include a regulator 110, a USB switch 120, and a controller 140.

The regulator 110 converts the voltage of the battery power source B + of the vehicle supplied through the smart adapter 20 into a preset USB bus voltage Vbus to supply operating power to the USB power terminal of the smart device 10. Can give

In this case, the smart adapter 20 provides a communication interface between the smart device 10 and the vehicle 30. The CAN adapter for communicating with the vehicle 30 the USB communication data received from the smart device 10. : Controller Area Network) Converts into communication data and transmits it to the vehicle 30, and converts can communication data received from the vehicle 30 into USS communication data and transmits it to the smart device 10. In other words, the smart adapter 20 converts the USB communication data of the smart device 10 and the CAN communication data of the car 30 to each other so that the communication between the smart device 10 and the car 30 may be performed. have. Through this, the smart device 10 receives information such as radio, audio, Bluetooth, rear camera, black box, multicam, speaker, warning light, sensor, etc. installed in the car 30 to implement the infotainment system of the car 30. By displaying the information so that the user can know or driving the application corresponding to the received information, and can transmit information for the infotainment to the car 30 to support the devices installed in the car 30 to operate.

Next, the USB switch 120 may include first data terminals DP121 and DM121 connected to the USB data terminals DP10 and DM10 of the smart device 10 and the USB data terminals DP20 and DM20 of the smart adapter 20. 2-2 data terminals DP122 and DM123 connected to the first and second data terminals DP123 and DM122 connected to the fast charging circuit unit 130 corresponding to the smart device 10. The first data terminals DP121 and DM121 may be connected to the second-first data terminals DP122 and DM122 or the second-second data terminals DP123 and DM123 in response to a predetermined control signal.

In this case, the fast charging circuit unit 130 may distribute the voltage of the power supplied from the regulator 110 and may allow the divided voltage to be supplied to the second-2 data terminals DP123 and DM123 of the USB switch 120. . In the fast charging circuit unit 130, the resistor R131 and the resistor R132 may be connected in series, and the second-2 data of the USB switch 120 may be connected to a contact point between the resistor R131 and the resistor R132. The terminals DP123 and DM123 may be shorted and combined.

Next, when the vehicle 30 is driven, the controller 140 may connect the first data terminals DP121 and DM121 of the USB switch 120 to the 2-1 data terminals DP122 and DM122. When the vehicle 30 is not in a driving condition, the USS switch 120 is controlled such that the first data terminals DP121 and DM121 of the USS switch 120 are connected to the second-2 data terminals DP123 and DM123. can do.

That is, when the ACC power is supplied from the vehicle 30 through the smart adapter 20, the controller 140 determines that the vehicle 30 operates, and the first data terminal DP121, The DM121 may be connected to the 2-1 data terminals DP122 and DM122 to control the USB switch 120 to operate in the data communication mode.

If the ACC power is not supplied from the vehicle 30 through the smart adapter 20, the controller 140 determines that the vehicle 30 is not a condition in which the vehicle 30 operates, and the first data terminal of the USB switch 120. The DPs 120 and DM121 may be connected to the second-2 data terminals DP123 and DM123 to control the USB switch 120 to operate in the fast charging mode.

In addition, the controller 140 may operate when the USB switch 120 operates in the fast charge mode, and when the voltage of the battery power B + of the vehicle 30 supplied through the smart adapter 20 is less than or equal to a preset voltage value. The first data terminals DP121 and DM121 of the USB switch 120 are disconnected from the 2-1 data terminals DP122 and DM122 and the second-2 data terminals DP123 and DM123 of the USB switch 120. The USB switch 120 may be controlled to operate in the standby mode. If the voltage of the battery power source B + of the vehicle 30 decreases while the vehicle 30 is not driving, the vehicle 30 is stopped by the fast charging of the smart device 10. Can be prevented from being discharged.

Unlike this, the USB charging apparatus 100 of the vehicle according to the embodiment of the present invention further includes a battery voltage detector for detecting a voltage of the power source B + supplied from the battery of the vehicle 30, wherein the controller 140 may obtain information about the battery voltage of the vehicle 30 through communication with the voltage detector.

In addition, the USB charging apparatus 100 of a vehicle according to an embodiment of the present invention has a voltage of the battery power B + of the vehicle 30 supplied through the smart adapter 20 using the regulator 110. When the voltage is lower than the voltage value, the battery of the vehicle may be prevented from being over discharged by stopping the supply of operating power to the USB power supply terminal Vbus of the smart device 10.

Referring to the method for charging the smart device mounted on the vehicle using the USB charging apparatus 100 of the vehicle according to an embodiment of the present invention configured as described above are as follows.

First, when the user including at least a driver connects the smart device 10 to the USB connector of the dashboard in order to use the smart device 10 as the infotainment system of the vehicle 30, the USB charging apparatus 100 is smart. Converts the voltage of the battery power (B +) of the vehicle 30 supplied through the adapter 20 to a predetermined USB bus voltage (Vbus) to supply the operating power to the USB power terminal of the smart device 10, smart adapter The ACC power of the vehicle 30 supplied through the 20 is analyzed to determine whether the vehicle 30 is in a running condition.

That is, when the smart device 10 is connected to the USB connector of the dashboard, the regulator 110 of the USB charging device 100 is the voltage of the battery power (B +) of the vehicle 30 supplied through the smart adapter 20 This is converted into a preset USB bus voltage (Vbus) to supply operating power to the USB power terminal of the smart device 10. In addition, the control unit 140 of the USB charging device 100 analyzes the ACC power of the vehicle 30 supplied through the smart adapter 20 to determine whether the vehicle 30 is in a running condition.

Then, when the user applies the ACC power through the ignition key to drive the car 30, the control unit 140 of the USB charging apparatus 100 determines that the car 30 is operating conditions, accordingly the USB switch The control unit 130 operates in the data communication mode so that the USB data terminals DP10 and DM10 of the smart device 10 are connected to the USB data terminals DP20 and DM20 of the smart adapter 20. For example, the controller 140 controls the USB switch 130 so that the first data terminals DP121 and DM121 of the USB switch 130 are connected to the 2-1 data terminals DP122 and DM122.

In this state, the smart device 10 implements the infotainment system of the car 30 through communication with the car 30 through the smart adapter 20. In addition, the smart device 10 performs a low-speed charging operation by general UBS charging.

Subsequently, when the ACC power applied to the user is turned off by turning off the ignition key to end the driving of the vehicle 30, the control unit 140 of the USB charging apparatus 100 is not a condition in which the vehicle 30 operates. As a result, the USB switch 130 is controlled to operate in the fast charging mode so that the USB data terminals DP10 and DM10 of the smart device 10 are connected to the fast charging circuit 130. For example, the controller 140 controls the USB switch 130 so that the first data terminals DP121 and DM121 of the USB switch 130 are connected to the second-2 data terminals DP123 and DM123.

Then, the smart device 10 maintaining the state mounted on the vehicle after the driving of the vehicle is fast-charged by the battery B + of the vehicle.

However, in a state where the USB data terminal of the smart device 10 is connected to the fast charging circuit unit 130 and operated in the fast charging mode, the battery power B + of the vehicle 30 supplied through the smart adapter 20 is operated. When the voltage is less than or equal to a predetermined voltage value, the USB charging device 100 uses the USB data terminals DP10 and DM10 of the smart device 10 to charge the USB data terminals DP20 and DM20 of the smart adapter 20 and the fast charging. By preventing the connection to the circuit unit 310 to operate in the standby mode, to prevent the over-discharge of the vehicle 30 battery.

That is, in order to actively switch fast charging and data communication of the smart device 10 mounted on the vehicle according to the exemplary embodiment of the present invention, the USB charging apparatus 100 of the vehicle is as shown in FIG. 4. By controlling the data communication mode, the fast charging mode, and the standby mode in response to the power state and the ACC power state, stable power supply to the smart device 10 can be achieved and overdischarge of the car battery can be prevented.

FIG. 4 schematically illustrates a USS charging apparatus of a vehicle for actively switching fast charging and data communication of a smart device mounted on the vehicle according to another embodiment of the present invention.

Referring to FIG. 4, the USB charging apparatus 100 of a vehicle according to another exemplary embodiment of the present invention converts a voltage B + of a power source supplied from a battery of the vehicle 10 into a predetermined USB bus voltage Vbus. A regulator for supplying operating power to a USB power supply terminal of the smart device 10; The first data terminals DP121 and DM121 connected to the USB data terminals DP10 and DM10 of the smart device 10 and the 2-1 data terminals connected to the USB data terminals DP30 and DM30 of the vehicle 30 ( DP122, DM122, and second-second data terminals DP123 and DM123 connected to the fast charging circuit unit 130 corresponding to the smart device 10, and corresponding to the predetermined control signal. The USB switch 130 for connecting the DP121 and the DM121 to the 2-1 data terminals DP122 and DM122 or the 2-2 data terminals DP123 and DM123, and when the vehicle 30 is in a running condition, is used. The first data terminals DP21 and DM21 of the switch 130 are connected to the 2-1 data terminals DP122 and DM122, and when the vehicle 30 is not in a driving condition, the first data terminals DP21 and DM21 of the switch 130 1 Use the USB switch 130 to connect the data terminals DP121 and DM121 to the second-2 data terminals DP123 and DM123. It may include a control unit 140 for controlling.

Further, in the method for actively switching fast charging and data communication of a smart device mounted on a vehicle according to another embodiment of FIG. 4, the predetermined voltage of the battery power source B + supplied from the battery of the vehicle is used. It converts into a bus voltage (Vbus) and supplies operating power to the USB power supply terminal of the smart device 10, and analyzes the ACC power of the vehicle supplied from the vehicle 30 to determine whether the vehicle 30 is in a running condition. . If the vehicle 30 is in a running condition, the USB data terminals DP10 and DM10 of the smart device 10 are connected to the USB data terminals DP30 and DM30 of the vehicle 30 to operate in the data communication mode. When the vehicle 30 is not in a running condition, the USB data terminals DP10 and DM10 of the smart device 10 are connected to the fast charging circuit unit 130 to operate in the fast charging mode. In addition, when the voltage of the battery power source B + of the vehicle 30 is less than or equal to a preset voltage value in the state of operating in the fast charging mode, the US 10 data terminals DP10 and DM10 of the smart device 10 may be disconnected. It is not connected to the USB data terminals DP30 and DM30 and the fast charging circuit unit 130 so as to operate in the standby mode.

Another embodiment of the present invention according to FIG. 4 is directly connected to the USS 30 switching device 100 without the smart adapter in Figure 2, each configuration and its operation method is understood from the description with reference to FIG. Detailed description is omitted since it is possible.

Although the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided to assist in a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations can be made from these descriptions.

Accordingly, the spirit of the present invention should not be limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the appended claims, fall within the scope of the spirit of the present invention. I will say.

Claims (14)

In the U.S. charging device of the car for actively switching the fast charging and data communication of the smart device mounted on the car, By converting the USB communication data of the smart device and the CAN communication data of the smart vehicle by mutual conversion, the voltage of the battery power source of the vehicle supplied through the smart adapter for communication between the smart device and the vehicle is performed. A regulator for converting into a set USB bus voltage and supplying operating power to a USB bus terminal of the smart device; A first data terminal connected to the USB data terminal of the smart device, a 2-1 data terminal connected to the USB data terminal of the smart adapter, and 2-2 data connected to the fast charging circuit unit corresponding to the smart device A USB switch including a terminal, the first data terminal being connected to the 2-1 data terminal or the 2-2 data terminal in response to a predetermined control signal; And When the vehicle is in a driving condition, the first data terminal of the UBS switch is connected to the second-1 data terminal. When the vehicle is not in a driving condition, the first data terminal of the UBS switch is A control unit for controlling the USB switch so that the second to second data terminal is connected to the second terminal; USS charging device for a vehicle comprising a. The method of claim 1, The control unit, When the ACC power is supplied from the vehicle through the smart adapter, it is determined that the vehicle is in a driving condition, and the first data terminal of the UBS switch is connected to the 2-1 data terminal so that the UBS switch is connected to the data. Control to operate in communication mode, If the ACC power from the vehicle is not supplied through the smart adapter, it is determined that the vehicle is not a driving condition, and the first data terminal of the USB switch is connected to the second-2 data terminal. USS charging apparatus for a vehicle, characterized in that the switch is controlled to operate in a fast charging mode. The method of claim 2, The control unit, In the state where the USB switch operates in the fast charge mode, When the voltage of the battery power source of the vehicle supplied through the smart adapter is less than or equal to a predetermined voltage value, the first data terminal of the USB switch is the 2-1 data terminal and the 2-2 data terminal of the USB switch. And the UESB switch to operate in the standby mode by disconnecting the UESB. The method of claim 3, Further comprising a battery voltage detector for detecting a voltage of the power supplied from the battery of the vehicle, The control unit, USS charging apparatus for a vehicle, characterized in that to obtain information about the battery voltage of the vehicle through communication with the voltage detector. The method of claim 1, The regulator, When the voltage of the battery power source of the vehicle supplied through the smart adapter is less than a predetermined voltage value, supplying the operating power to the USB power terminal of the smart device, characterized in that the vehicle's USB charging device. The method of claim 1, The fast charging circuit unit, And distributes the voltage of the power supplied from the regulator, and the divided voltage is supplied to the second-2 data terminal of the USB switch. In the US charging method of the vehicle for actively switching the fast charging and data communication of the smart device mounted on the vehicle, (a) The UBS charging device is supplied through a smart adapter which enables communication between the smart device and the vehicle by converting and transmitting UBS communication data of the smart device and CAN communication data of the car. A condition in which the vehicle operates by converting a voltage of a battery power source of a vehicle into a predetermined USB bus voltage to supply operating power to a USB terminal of the smart device and analyzing the ACC power of the vehicle supplied through the smart adapter. Determining cognition; And (b) (i) if the vehicle is in a running condition, the USB charging device connects the USB data terminal of the smart device to the USB data terminal of the smart adapter to operate in a data communication mode, and (ii) the If the vehicle is not driven, operating the fast charging mode by connecting the USB data terminal of the smart device to the USB charging unit of the smart device; USS charging method of a vehicle comprising a. The method of claim 7, wherein In the step (a), The USB charging device, If the ACC power from the vehicle is supplied through the smart adapter, it is determined that the vehicle is running. If the ACC power from the vehicle is not supplied through the smart adapter, the vehicle is not a condition for driving. USS charging method of the vehicle, characterized in that the judging. The method of claim 7, wherein (c) the battery power of the vehicle supplied through the smart adapter in a state where the vehicle is not driven and operated in the fast charging mode by connecting the USB data terminal of the smart device to the fast charging circuit unit; If the voltage is less than or equal to a predetermined voltage value, the USS charging device, operating the standby mode by preventing the USS data terminal of the smart device from being connected to the USS data terminal of the smart adapter and the fast charging circuit unit; USS charging method of the car further comprising a. In the U.S. charging device of the car for actively switching the fast charging and data communication of the smart device mounted on the car, A regulator for converting a voltage of a power supply supplied from a battery of a vehicle into a predetermined USB bus voltage to supply operating power to a USB power terminal of the smart device; A first data terminal connected to the USB data terminal of the smart device, a 2-1 data terminal connected to the USB data terminal of the vehicle, and a second-2 data terminal connected to the fast charging circuit unit corresponding to the smart device; And a USB switch for connecting the first data terminal to the 2-1 data terminal or the 2-2 data terminal in response to a predetermined control signal. And When the vehicle is in a driving condition, the first data terminal of the UBS switch is connected to the second-1 data terminal. When the vehicle is not in a driving condition, the first data terminal of the UBS switch is A control unit for controlling the USB switch so that the second to second data terminal is connected to the second terminal; USS charging device for a vehicle comprising a. The method of claim 10, The control unit, When the ACC power is supplied from the vehicle, it is determined that the vehicle is in a driving condition, and the first data terminal of the USB switch is connected to the second-1 data terminal so that the USB switch operates in a data communication mode. , If the ACC power is not supplied from the vehicle, it is determined that the vehicle is not a driving condition, and the first data terminal of the USB switch is connected to the second-2 data terminal so that the USB switch enters the fast charging mode. USS charging device for a vehicle, characterized in that the control to operate. The method of claim 11, The control unit, In the state where the USB switch operates in the fast charge mode, If the voltage of the power supplied from the battery of the vehicle is less than or equal to a predetermined voltage value, the USB switch such that the first data terminal of the USB switch is short-circuited from the 2-1 data terminal and the 2-2 data terminal of the USB switch. USS charging device of a car, characterized in that for controlling. In the US charging method of the vehicle for actively switching the fast charging and data communication of the smart device mounted on the vehicle, (a) The USB charging device converts the voltage of the battery power supplied from the battery of the vehicle into a predetermined USB bus voltage to supply operating power to the USB terminal of the smart device, and supplies the operating power of the automobile supplied from the vehicle. Analyzing an ACC power source to determine whether the vehicle is in a driving condition; And (b) (i) if the vehicle is in a driving condition, the USB charging device connects the USB data terminal of the smart device to the USB data terminal of the vehicle to operate in a data communication mode, and (ii) the vehicle is If it is not a driving condition, by the USS charging apparatus, connecting the USS data terminal of the smart device to a fast charging circuit to operate in a fast charging mode; USS charging method of a vehicle comprising a. The method of claim 13, (c) the voltage of the battery power supply of the vehicle is less than or equal to a predetermined voltage value in a state in which the vehicle is not in a driving condition and is connected in a fast charging mode by connecting the USB data terminal of the smart device to the fast charging circuit unit. On the back side, the USB charging apparatus includes: operating the standby mode by preventing the USS data terminal of the smart device from being connected to the USS data terminal of the vehicle and the fast charging circuit unit; USS charging method of the car further comprising a.

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