KR101683650B1 - Method for reducing dark current in vehicle and computer readable medium the same - Google Patents
Method for reducing dark current in vehicle and computer readable medium the same Download PDFInfo
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- KR101683650B1 KR101683650B1 KR1020150122397A KR20150122397A KR101683650B1 KR 101683650 B1 KR101683650 B1 KR 101683650B1 KR 1020150122397 A KR1020150122397 A KR 1020150122397A KR 20150122397 A KR20150122397 A KR 20150122397A KR 101683650 B1 KR101683650 B1 KR 101683650B1
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- sleep mode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Selective Calling Equipment (AREA)
Abstract
Disclosed is a method for reducing dark current that may occur in a vehicle during LF communication, and a computer readable recording medium therefor.
To this end, this embodiment pre-registers the driver's local communication device in the AVN device and maintains the state of the SMK controller in the sleep mode until the AVN device and the driver's local communication device are paired, thereby significantly reducing the dark current in the vehicle Mechanism.
Thus, this embodiment can reduce the dark current generated in spite of the off state of the vehicle power, thereby improving the battery discharge and ultimately increasing the service life of the vehicle.
Description
The present invention relates to a technique for reducing a dark current in a vehicle, and more particularly, to a method for reducing a dark current that may be generated in a vehicle during LF communication and a computer readable recording medium therefor.
Generally, AVN devices (Audio, Video, Navigation Device) and SMK (Smart Key) controllers installed in a vehicle are all connected to the vehicle's battery even if the vehicle's electronic system is off.
The AVN device and the SMK controller can be connected to each other via a CAN communication using a cluster (or a part of BCM) as a gateway.
In the meantime, the SMK (Smart Key) controller constantly increases the dark current in the SMK controller because the LF signal must be periodically transmitted to the outside even if the driver possessing the smart device does not approach the vehicle.
As described above, when the dark current increases, a discharge phenomenon occurs in the battery and the life of the vehicle can be shortened.
For example, the dark current regulation value in the vehicle specified in CISPR 25 can be represented as shown in FIG. 1. When the dark current increases as described above, the recommended dark current limit value in FIG. 1 is exceeded, .
The present embodiment is directed to a method for reducing the dark current in the SMK controller using a local communication technique already installed in an AVN device, and a computer-readable recording medium therefor.
According to one embodiment of the present invention, before attempting to pair with a short range communication device pre-registered in an AVN device (audio, video, navigation device) connected to a battery in the AVN device, an SMK Operating the SMK controller in the sleep mode after waking up the AVN device after the pairing is completed; and operating the SMK controller in the sleep mode to wake up the LF signal generated in the wake- And performing periodic external transmission to perform a door lock or a door unlock.
The pairing may be a state related to the connection of the short-distance communication, and the short-range communication may be a Bluetooth, a wireless LAN, a Wi-Fi, a zigbee, a W- wideband, infrared data association (IrDA), Bluetooth low energy (BLE), and Near Field Communication (NFC).
The step of waking up may send a CAN signal generated in the AVN device to the SMK controller to wake up the SMK controller, and the CAN signal may be a signal to stop the sleep mode.
According to one embodiment, there is provided a method for reducing the dark current flowing to the SMK controller by an electronic control unit for controlling AVN devices (Audio, Video, Navigation Device) and SMK (Smart Key) Registering the device in the AVN device; controlling the SMK controller in a sleep mode after the control; controlling the AVN device to detect and pair with the local area communication device through short-range communication; Controlling the AVN device to wake up the SMK controller operating in the sleep mode from the AVN device; and controlling the AVN device to periodically transmit the LF signal generated in the wake- Checking the LF signal to perform a door lock or a door unlock. And provides a method of reducing dark current.
The local area communication may be a Bluetooth communication, a wireless LAN, a Wi-Fi, a zigbee, a WFD, an ultra wideband (UWB), an infrared data association (IrDA) (Bluetooth Low Energy) and NFC (Near Field Communication).
The step of waking up may wake up the SMK controller using the CAN signal generated by the AVN device, and the CAN signal may be a signal to stop the sleep mode.
According to one embodiment, there is provided a computer-readable recording medium for any one of the aforementioned methods for reducing dark current in a vehicle.
As described above, this embodiment improves the battery discharge by operating the SMK controller in the sleep mode by using the short distance communication technology of the AVN device to reduce the dark current generated despite the vehicle power is off, and ultimately, Thereby increasing the lifetime of the battery.
Furthermore, the present embodiment can reduce the capacity of the battery by preventing the battery discharge phenomenon as described above, and it is possible to reduce the battery cost due to the miniaturization of the battery.
1 is a graph showing a conventional dark current limit value in a vehicle.
2 is a flowchart showing an example of a method for reducing a dark current in a vehicle according to an embodiment.
FIG. 3 is a view showing a data processing flow of each hardware for performing the dark current reducing method of FIG.
4 is a flowchart showing another example of the dark current reduction method according to one embodiment.
FIG. 5 is a diagram showing a data processing flow of each hardware for performing the dark current reduction method of FIG.
The various methods to which the following embodiments are applied will be described in detail with reference to the drawings.
It is to be understood that the "and / or" disclosed in the following embodiments include any and all possible combinations of one or more of the listed related items.
It is to be understood that the terms such as " comprising "or" having "disclosed in the following embodiments mean that the constituent element can be implanted unless specifically stated to the contrary, It should be understood that the present invention further includes components.
<Example of method of reducing dark current>
FIG. 2 is a flowchart showing an example of a method for reducing a dark current in a vehicle according to an embodiment. FIG. 3 is a view showing a data processing flow of each hardware for performing the dark current reducing method of FIG.
As shown in the figure, a method for reducing dark current in a vehicle S100 according to an exemplary embodiment uses an AVN device 100 (Audio, Video, Navigation Device) and a SMK (Smart Key) S110 to S130 to prevent the generation of a dark current in the light emitting diode.
Here, the AVN device 100 and the SMK controller 200 shown in FIG. 3 can maintain a current flowing in the battery 300 in a connected state even when the vehicle is powered off.
The AV device 100, the SMK controller 200, and the battery 300 via the CAN communication.
Under this condition, step S110 according to one embodiment registers the short range communication device 400 in the AVN device 100 connected to the battery 300 (S111). The registration of the local area communication device 400 may be performed by inputting via the user interface of the AVN device 100 or inputting from the local area communication device 400 connected via the local area communication.
The short range communication device 400 may be a wireless communication device such as a mobile terminal, a wearable device, and a headset. However, the present invention is not limited to this, and an apparatus equipped with a short-range communication module may be included in the scope of the present embodiment.
On the other hand, the near-field communication can be realized by using Bluetooth, a wireless LAN, a Wi-Fi, a zigbee, a Wi-Fi direct, an ultra wideband (UWB), an infrared data association (IrDA) BLE (Bluetooth Low Energy), and NFC (Near Field Communication), and it is preferable to be connected by Bluetooth communication.
In step S110, the sleep mode switching signal related to the switching of the sleep mode generated in the AVN device 100 may be transmitted to the SMK controller 200 (S112). Accordingly, the SMK controller 200 can be operated in the sleep mode (S113).
The switching to the sleep mode can prevent the SMK controller 200 from periodically transmitting the LF signal to the outside even if the vehicle is powered off.
In step S110, the AVN device 100 may receive a response signal indicating that the SMK controller 200 is switched to the sleep mode (S114). In this case, after confirming the response signal, the AVN device 100 may detect the short-range communication device through short-range communication, for example, Bluetooth communication, and may be paired with the short-range communication device at step S115.
Paralling may include the connection status associated with the connection of the short range communication. Such pairing is a well-known technique, and a description thereof will be omitted.
In one embodiment, after the pairing is completed, step 120 may wake up the AV device 100 from the SMK controller 200 operating in the sleep mode.
To this end, the AVN device 100 in step S120 may transmit a wake-up request signal to the SMK controller 200 using a CAN communication (CAN signal) already used through a gateway in step S121.
Accordingly, the SMK controller 200 may wake up in response to the wakeup request signal transmitted from the AVN device 100 (S122).
This wakeup may mean that the AVN device is no longer in the sleep mode and then switches to a state where it can send and receive LF signals between external devices (e.g., smart keys).
As described above, the present embodiment operates the sleep mode operation and the wakeup of the SMK controller after being paired using the AVN device connected through the short-range communication Bluetooth communication, thereby periodically transmitting the LF signal to the outside even if the power of the vehicle is turned off It is possible to prevent an increase in the dark current due to the phenomenon of
Finally, in step S130, the LF signal generated in the wake-up SMK controller 200 may be periodically transmitted to the outside (S131).
The LF signal may be a signal previously associated with a door lock or a door unlock of a vehicle, which is a previously promised signal between a commonly known SMK controller 200 and a smart key.
Accordingly, when the LF signal is detected by the short-range communication device 400 (S132), the door lock and the door unlock between the SMK controller 200 and the short-range communication device 400 can be performed (S133).
The performed door lock and door unlock include the FOB (Vehicle Key) authentication sequence process, but they are generally known processes, and a description thereof will be omitted.
As described above, in this embodiment, by minimizing the dark current that may occur in the vehicle, particularly in the SMK controller 200, the battery discharge can be prevented to reduce the capacity of the battery and the battery cost due to battery miniaturization can be reduced will be.
The dark current reduction method described above can be implemented in the form of program instructions that can be executed through the above-described hardware components and recorded on a computer-readable recording medium.
The recording medium mentioned may include program commands, data files, data structures, etc., alone or in combination. The program instructions recorded on the computer-readable recording medium may be those specially designed and configured for this embodiment, or may be those known to those skilled in the computer software arts.
Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, media), and hardware devices (e.g., AVN devices, SMK controllers, etc.) specifically configured to store and execute program instructions such as ROM, RAM, flash memory and the like.
Examples of program instructions may include machine language code such as those produced by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like.
<Other examples of the method of reducing the dark current>
FIG. 4 is a flowchart illustrating another example of the dark current reduction method according to an embodiment. FIG. 5 is a flowchart illustrating a data processing process of each hardware for performing the dark current reduction method of FIG.
As shown in the figure, the dark current reduction method (S200) according to one embodiment includes an electronic control unit (ECU) 700 for controlling an AVN device 500 and an SMK (Smart Key) To prevent the occurrence of dark current flowing in the SMK controller 600 by steps S210 through S240.
Here, the AVN device 500 and the SMK controller 600 shown in FIG. 5 can maintain current flowing in the battery 800 even when the vehicle is powered off.
The electronic control unit 700, the AVN device 500, the SMK controller 600, and the battery 800 by CAN communication.
Under this condition, step S210 according to an embodiment may be performed by the electronic control unit 700 (ECU) so that the short range communication device 900 is pre-registered in the AVN device 500 connected to the battery 900, A registration command is transmitted (S211).
Therefore, the AVN device 500 pre-registers the short range communication device 900 in response to the pre-registration instruction. The registration of the local area communication device 900 may be enabled by inputting through the user interface of the AVN device 500 or inputting from the local area communication device 900 connected via the local area communication.
The short range communication device 900 may be a wireless communication device such as a mobile terminal, a wearable device, and a headset. However, the present invention is not limited to this, and an apparatus equipped with a short-range communication module may be included in the scope of the present embodiment.
On the other hand, the near-field communication can be realized by using Bluetooth, a wireless LAN, a Wi-Fi, a zigbee, a Wi-Fi direct, an ultra wideband (UWB), an infrared data association (IrDA) BLE (Bluetooth Low Energy), and NFC (Near Field Communication), and it is preferable to be connected by Bluetooth communication.
Then, in step S210, the sleep mode switching signal can be controlled by the electronic control unit 700 so that the sleep mode switching signal related to the switching of the sleep mode generated in the AVN device 500 can be transmitted to the SMK controller 600 (S212). Accordingly, the SMK controller 600 can be operated in the sleep mode.
The switching to the sleep mode can prevent the SMK controller 600 from periodically transmitting the LF signal to the outside even if the vehicle is powered off.
In operation S220, the AVN apparatus 500 and / or the electronic control unit 700 may receive a response signal indicating that the SMK controller 600 is switched to the sleep mode (S221). At this time, when the AVN device 500 receives the sleep mode response signal, it can inform the electronic control unit 700 of the response signal.
Subsequently, in step S220, after the AVN device 500 confirms the response signal in the electronic control unit 700, the short distance communication device 900 detects the short distance communication device 900 through short distance communication, for example, Bluetooth communication, If so, the electronic control unit 700 can receive the paired result from the AVN device 500 (S222).
Paralling may include the connection status associated with the connection of the short range communication. Such pairing is a well-known technique, and a description thereof will be omitted.
In operation S230, when the AVN device 500 receives from the AVN device 500 that the pairing is completed, the AVN device 500 may wake up the SMK controller 600 operating in the sleep mode, 500).
To this end, the AVN device 500 in step S230 can wake up using a CAN signal (CAN communication) already used through a gateway.
More specifically, in step S230, when the electronic control unit 700 receives from the AVN device 500 that the pairing is completed, it transmits a wake-up request signal to the AVN device 500 (S231) May send the received wake-up request signal back to the SMK controller 600.
Thus, the SMK controller 600 can wake up in response to the wakeup request signal transmitted from the AVN device 500. [
This wakeup may mean switching the state of the SMK controller 600 that is operating in the sleep mode after the state of the SMK controller 600 is stopped, so that the LF signal can be exchanged between the external device (e.g., smart key).
In step S230, the electronic control unit 700 receives the wakeup result generated from the SMK controller 600 through the AVN device 500 (step S232), or receives the wakeup result generated from the SMK controller 600 It can be immediately received by the electronic control unit 700 (S232).
As described above, the present embodiment operates the sleep mode operation and the wakeup of the SMK controller after being paired using the AVN device connected through the short-range communication Bluetooth communication, thereby periodically transmitting the LF signal to the outside even if the power of the vehicle is turned off It is possible to prevent an increase in the dark current due to the phenomenon of
Finally, in step S240, the electronic control unit 700 can confirm the LF signal generated in the SMK controller 600 woken up. For example, the LF transmission confirmation signal related to whether the LF signal generated in the SMK controller 600 is periodically transmitted to the outside is received by the electronic control unit 700 (S241), and generation of the LF signal can be confirmed .
The LF signal identified by the electronic control unit 700 is typically a promised signal between a well known SMK controller 600 and a smart key that can be used as a door lock or door unlock ) ≪ / RTI >
Accordingly, when the LF signal is detected by the short-range communication device 900, door lock and door unlock between the SMK controller 600 and the short-range communication device 900 can be performed.
The performed door lock and door unlock include the FOB (Vehicle Key) authentication sequence process, but they are generally known processes, and a description thereof will be omitted.
The results of the door lock and door unlocking may be reported to the electronic control unit 700 (S242). Therefore, the electronic control unit 700 can know whether the smart key authentication service related to the door lock or the door unlock between the SMK controller 600 and the local area communication device 900 is completed.
As described above, in this embodiment, by minimizing the dark current that may occur in the vehicle, particularly in the SMK controller 600, the battery discharge can be prevented to reduce the capacity of the battery and the battery cost due to battery miniaturization can be reduced will be.
The dark current reduction method described above can be implemented in the form of program instructions that can be executed through the above-described hardware components and recorded on a computer-readable recording medium.
The recording medium mentioned may include program commands, data files, data structures, etc., alone or in combination. The program instructions recorded on the computer-readable recording medium may be those specially designed and configured for this embodiment, or may be those known to those skilled in the computer software arts.
Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, media), and a hardware device (e.g., an electronic control unit (ECU)) specifically configured to store and execute program instructions such as ROM, RAM, flash memory and the like.
Examples of program instructions may include machine language code such as those produced by a compiler, as well as high-level language code that may be executed by a computer using an interpreter or the like.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. You can understand that you can do it. The embodiments described above are therefore to be considered in all respects as illustrative and not restrictive.
100, 500: AVN apparatus 200, 600: SMK controller
300, 800: Battery 400, 900: Local communication device
700: Electronic control unit
Claims (10)
Waking up the SMK controller operating in the sleep mode from the AVN device after the pairing is completed; And
A step of periodically externally transmitting the LF signal generated in the wake-up SMK controller to perform a door lock or a door unlock
And a control circuit for controlling the current flowing in the vehicle.
Wherein the pairing is a state related to connection of short-range communication.
The short-
Bluetooth, Wireless LAN, Wi-Fi, Zigbee, WiFi Direct, UWB, IrDA, BLE (Bluetooth Low Energy ) And NFC (Near Field Communication).
Wherein the waking-
And transmitting the CAN signal generated by the AVN device to the SMK controller to wake up the SMK controller.
And the CAN signal is a signal for stopping the sleep mode.
Registering the short range communication device in the AVN device, and operating the SMK controller in a sleep mode after the control;
Controlling the AVN device to detect and pair with the local area communication device through local area communication;
Controlling the AVN device to wake up the SMK controller operating in the sleep mode from the AVN device after the pairing is completed; And
Performing a door lock or a door unlock by checking the LF signal so that the LF signal generated in the wake-up SMK controller is periodically transmitted to the outside
And a control circuit for controlling the current flowing in the vehicle.
The short-
Bluetooth, Wireless LAN, Wi-Fi, Zigbee, WiFi Direct, UWB, IrDA, BLE (Bluetooth Low Energy ) And NFC (Near Field Communication).
Wherein the waking-
And the SMK controller is woken up using the CAN signal generated by the AVN device.
And the CAN signal is a signal for stopping the sleep mode.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150122397A KR101683650B1 (en) | 2015-08-31 | 2015-08-31 | Method for reducing dark current in vehicle and computer readable medium the same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020150122397A KR101683650B1 (en) | 2015-08-31 | 2015-08-31 | Method for reducing dark current in vehicle and computer readable medium the same |
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| KR101683650B1 true KR101683650B1 (en) | 2016-12-07 |
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| KR1020150122397A KR101683650B1 (en) | 2015-08-31 | 2015-08-31 | Method for reducing dark current in vehicle and computer readable medium the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763813A (en) * | 2019-10-21 | 2021-05-07 | 现代自动车株式会社 | Apparatus and method for detecting cause of battery discharge of vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006129019A (en) * | 2004-10-28 | 2006-05-18 | Denso Corp | Onboard wireless lan system, onboard mobile telephone communication device, and onboard wireless lan communication device |
| KR20100079605A (en) * | 2008-12-31 | 2010-07-08 | 김응열 | Smart key system |
| KR20140079211A (en) * | 2012-12-18 | 2014-06-26 | 현대오트론 주식회사 | System and method for cutting off dark current with FOB key |
| KR20150002954A (en) * | 2013-06-27 | 2015-01-08 | 현대모비스 주식회사 | Smart Key Bluetooth Paring Apparatus and the Method of Between Vehicle Multimedia Device and Smart Phone |
-
2015
- 2015-08-31 KR KR1020150122397A patent/KR101683650B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006129019A (en) * | 2004-10-28 | 2006-05-18 | Denso Corp | Onboard wireless lan system, onboard mobile telephone communication device, and onboard wireless lan communication device |
| KR20100079605A (en) * | 2008-12-31 | 2010-07-08 | 김응열 | Smart key system |
| KR20140079211A (en) * | 2012-12-18 | 2014-06-26 | 현대오트론 주식회사 | System and method for cutting off dark current with FOB key |
| KR20150002954A (en) * | 2013-06-27 | 2015-01-08 | 현대모비스 주식회사 | Smart Key Bluetooth Paring Apparatus and the Method of Between Vehicle Multimedia Device and Smart Phone |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763813A (en) * | 2019-10-21 | 2021-05-07 | 现代自动车株式会社 | Apparatus and method for detecting cause of battery discharge of vehicle |
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