KR20160044119A - Apparatus for controlling smart key system - Google Patents

Apparatus for controlling smart key system Download PDF

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Publication number
KR20160044119A
KR20160044119A KR1020140138291A KR20140138291A KR20160044119A KR 20160044119 A KR20160044119 A KR 20160044119A KR 1020140138291 A KR1020140138291 A KR 1020140138291A KR 20140138291 A KR20140138291 A KR 20140138291A KR 20160044119 A KR20160044119 A KR 20160044119A
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KR
South Korea
Prior art keywords
signal
antenna
vehicle
smart key
key system
Prior art date
Application number
KR1020140138291A
Other languages
Korean (ko)
Inventor
지상우
김신정
Original Assignee
현대자동차주식회사
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Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020140138291A priority Critical patent/KR20160044119A/en
Publication of KR20160044119A publication Critical patent/KR20160044119A/en

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    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/56—Control of actuators
    • E05B81/60—Control of actuators using pulse control, e.g. pulse-width modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The present invention comprises: a plurality of first antennas provided to a door of a vehicle and outputting one among a first signal or a second signal; a plurality of second antennas provided to a console and a bumper of the vehicle and outputting the second signal; and a control unit confirming whether or not a fob exists within a communicable range in accordance with the first signal to perform a welcome function of the vehicle when the first antennas output the first signals and controlling the first antenna and the second antenna to output the second signal after performing the welcome function. An output current of the first antenna to output the first signal is smaller than output currents of the first antenna and the second antenna for outputting the second signal.

Description

[0001] Apparatus for controlling smart key system [0002]

The present invention relates to a smart key system control apparatus for reducing dark current consumption of an antenna included in a smart key system.

Generally, a LF (Low Frequency) antenna of a vehicle smart key system is mounted on a vehicle and searches for a Fob with the same LF frequency output. Passive Door Access, Passive Trunk Access, Passive Start, Trunk Warning, etc., are detected according to the detected position of the vehicle. And so on. In addition, when the smart key comes close to the vehicle, the driver is provided with a welcome function or a welcome light function.

Currently, the smart key system is equipped with 6 or more LF antennas as shown in FIG. 1 depending on the vehicle. If the number of LF antennas is reduced to 6 or less, the LF antenna detection area becomes insufficient. As a result, there is a problem that the room is not started (passive start) or the trunk warning is not performed (Trunk Warning) due to a fire detection or non-detection area.

Although it is possible to increase the output of the LF antenna to reduce the antenna fire detection area, it is difficult to reduce the number of the LF antennas because the dark current increases and the consumption current increases.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2013-0010717 A

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to reduce the number of antennas and control the output of the antenna at low power during the control of the welcome function and control the output of the antenna at high output And to provide a control device for controlling the operation of the apparatus.

According to an aspect of the present invention, there is provided a smart key system control apparatus comprising: a plurality of first antennas provided on a door side of a vehicle and outputting either a first signal or a second signal; A plurality of second antennas provided on the console and bumper sides of the vehicle and outputting a second signal; And a controller that performs a welcome function of the vehicle by checking whether a plurality of first antennas output a first signal and whether a pob is present within a communication coverage according to the first signal, Wherein the output current of the first antenna for outputting the first signal is greater than the output current of the first antenna and the second antenna for outputting the second signal, 2 antenna is smaller than the output current of the two antennas.

The controller may output a response signal to the control unit when the first signal is received, and the controller may perform the welcome function when the response signal is input.

The first signal may include at least one of an LF signal and a UHF (Ultrahigh Frequency) signal, and the second signal may be an LF signal.

When the UHF signal is included in the first signal, the controller checks whether or not the PORV is present in a communication coverage area according to the UHF signal. If the PORV is present, Entry of the user terminal.

When the UHF signal is included in the first signal, the control unit controls the welcome function to be performed when the distance between the vehicle and the vehicle is shorter than a predetermined distance in the communication range corresponding to the UHF signal . ≪ / RTI >

The controller may check whether the PORV is present within a communication coverage range according to the second signal and request position information to the PORP depending on whether the PORP is present or not.

The control unit may perform at least one of a door approach detection function, a trunk approach detection function, an indoor area detection function, or a trunk close alert function according to the position information of the Pob received from the Pob.

The welcoming function may be configured to operate at least one of the side mirror and the illumination unit.

The smart key system control device having the above structure can reduce the cost by reducing the number of antennas, and can reduce the weight and the package volume.

In addition, by binarizing the output of the antenna according to the control, the dark current consumption and the consumption current can be minimized while the underexposure area of the antenna is removed.

In addition, by using the LF signal and the UHF signal in combination, it is possible to maximize the control region while minimizing dark current consumption and current consumption.

1 is a view for explaining a conventional smart key system.
2 is a block diagram illustrating a smart key system control apparatus according to an embodiment of the present invention.
3 is a block diagram of a smart key system control apparatus according to an embodiment of the present invention.
4 is a diagram showing a communication range according to a first signal of a first antenna according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating a communication range according to a second signal of a first antenna and a second antenna according to an embodiment of the present invention.
6 is a diagram illustrating communication ranges of a first antenna and a second antenna when a first signal according to an embodiment of the present invention includes a UHF signal.

Hereinafter, a smart key system control apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. 2 is a block diagram illustrating a smart key system control apparatus according to an embodiment of the present invention. 3 is a block diagram of a smart key system control apparatus according to an embodiment of the present invention. 4 is a diagram showing a communication range according to a first signal of a first antenna according to an embodiment of the present invention. FIG. 5 is a diagram illustrating a communication range according to a second signal of a first antenna and a second antenna according to an embodiment of the present invention. 6 is a diagram illustrating communication ranges of a first antenna and a second antenna when a first signal according to an embodiment of the present invention includes a UHF signal.

2 to 6, the smart key system control apparatus includes a plurality of first antennas 100 provided on a door side of a vehicle and outputting either a first signal or a second signal; A plurality of second antennas (110) provided on the console and bumper sides of the vehicle and outputting a second signal; And a controller that performs a welcome function of the vehicle by checking whether the first antenna transmits a first signal when the first antenna receives the first signal, And a control unit (140) for controlling the first antenna (100) and the second antenna (110) to output a second signal after the first antenna (100) May be smaller than the output currents of the first antenna (100) and the second antenna (110) for outputting the second signal.

Conventionally, antennas are provided on both sides of a door handle of a vehicle, and on a front, a console, a trunk, and a bumper so as to detect the pavs 150 located outside and inside the vehicle. In the present invention, And the second antenna 110 is installed on the console and the bumper of the vehicle, so that the number of the antennas can be reduced. Accordingly, the cost of implementing a smart key system is reduced, and the weight and package of the system are reduced.

At this time, the first antenna 100 is provided to detect the pod 150 outside the vehicle, and operates the welcome function when the first signal detects the pod 150 as the first signal. The second antenna 110 is provided to detect the inside of the vehicle 150. An operation performed when the first antenna 100 and the second antenna 110 sense the second antenna 150 as the second signal Will be described later.

Here, the first antenna 100 and the second antenna 110 output a signal with an output current corresponding to each signal, and the communication coverage of each signal increases or decreases according to the output current. For example, when the antenna outputs a low-frequency signal at an output current of 1A, the communication range is narrower than the communication range at the time of outputting the low-frequency signal at an output current of 2A. Therefore, the problem of the area where the pob 150 is not sensed due to the reduction of the number of antennas of the present invention can be solved by increasing the output currents of the first antenna 100 and the second antenna 110. However, this may cause a problem that the dark current increases and the current consumption increases.

In order to solve this problem, the present invention sets the antenna output current when outputting the first signal and the antenna output current when outputting the second signal differently. In the case where the antenna output current at the time of outputting the first signal is Is set to be lower than the antenna output current.

Specifically, since the first antenna 100 outputs a first signal with a low output current before the welcome function is performed, the communication range of the first antenna 100 is narrowed as shown in FIG. 5, the control unit 140 controls the first antenna 100 and the second antenna 110 to output a second signal with a larger output current value, The communication range of the antenna 100 and the second antenna 110 is wide. Therefore, the control unit 140 controls the first antenna 100 to output a signal with a separate low output current before performing the welcome function, and then increases the output current of the antennas, thereby removing the undetected area in the vehicle, The dark current consumption can be reduced.

At this time, the welcome function operates at least one of the side mirror 120 and the illumination unit 130. Specifically, the welcome function can be implemented by unfolding the side mirror 120 or operating the illumination unit 130 provided in the side mirror, as a function that operates when the driver is adjacent to the vehicle.

On the other hand, when the first signal is received, the controller 150 outputs a response signal to the controller 140, and the controller 140 performs control to perform the welcome function when the response signal is input .

That is, when the first signal is received, the forbob 150 determines whether the ID of the vehicle transmitting the signal is the same as the ID of the pob 150, and determines whether to output the response signal to the control unit 140. For example, when receiving the first signal, if the ID of the vehicle is the same as the ID of the mobile phone 150, a response signal is output. If the ID of the vehicle is different from the ID of the mobile phone 150, can do.

Also, the first signal may include at least one of an LF (Low Frequency) signal and a UHF (Ultrahigh Frequency) signal, and the second signal may be an LF signal.

If the UHF signal is included in the first signal, the controller 140 checks whether or not the Pob 150 exists in the coverage area 500 according to the UHF signal. If the presence of the Pob 150 exists, And can control the operation of the remote keyless entry (RKE). When the UHF signal is included in the first signal, the controller 140 determines that the Pob 150 exists in the communication range 500 according to the UHF signal, And to perform the welcome function when the distance is shorter than the set distance.

Specifically, the first antenna 100 and the second antenna 110 may be configured as LF (Low Frequency) antennas to perform control using only the LF signal. Furthermore, the first antenna 100 may be configured to output at least one of the LF signal and the UHF signal, and the UHF signal and the LF signal may be mixed to perform the control.

When the first antenna 100 is configured to output the UHF signal, the remote control device RKE can be operated within the communication range 500 according to the UHF signal. When the first antenna 100 outputs the UHF signal, The range that can be used is expanded.

Accordingly, when the LF signal and the UHF signal are used in combination as the first signal, the controller 140 outputs the UHF signal to the first antenna 100, and if the Pob 150 exists in the communication range 500, And controls the remote control device (RKE) to be operable. The control unit 140 requests or receives the distance information between the vehicle 150 and the vehicle 150 from the vehicle 150 and displays the welcome function when the distance between the vehicle 150 and the vehicle becomes shorter than a preset distance . After performing the welcome function, the controller 140 switches the output of the LF signal to an output current lower than the output current of the first antenna 100 when the first antenna 100 outputs the second signal, And controls the first antenna 100 and the second antenna 110 to output the second signal.

6, when the first antenna 100 outputs the UHF signal, the communication range 500 according to the UHF signal, the predetermined range 510 enabling the welcome function operation, and the first antenna 100 and the second antenna 100, 2 antenna 110 outputs a second signal, a communication coverage 520 according to the second signal is shown.

The control unit 140 may check whether or not the pod 150 exists within the communicable range according to the second signal and request the location information of the pod 150 according to whether the pod 150 exists or not , A trunk proximity detection function, an indoor area detection function, or a trunk close warning function according to the position information of the fob 150 received from the fob 150.

Specifically, when the second signal is received, the fob 150 measures a received signal strength indicator (RSSI), calculates position information of the fob 150 according to the measured field strength, and outputs the position information to the controller 140 .

If the controller 140 determines that the door 150 is located on the exterior door of the vehicle according to the received position information of the door 150, the control unit 140 performs a door approach detection function to allow the driver to open the door by operating the door button . In addition, if it is determined that the pav 150 exists on the trunk side of the vehicle, the control unit 140 controls the trunk access function so that the trunk can be opened by the trunk button operation by the driver. If the controller 140 determines that the portable device 150 is inside the vehicle, the control unit 140 performs an indoor area sensing function to control the driver to turn on the engine by operating the start button. The control unit 140 controls the trunk closure warning function so that the driver can recognize that the pav 150 exists in the trunk when it is determined that the pav 150 exists in the trunk of the vehicle and the trunk is closed.

The smart key system control device having the above structure can reduce the cost by reducing the number of antennas, and can reduce the weight and the package volume.

In addition, by binarizing the output of the antenna according to the control, the dark current consumption and the consumption current can be minimized while the underexposure area of the antenna is removed.

In addition, by using the LF signal and the UHF signal in combination, it is possible to maximize the control region while minimizing dark current consumption and current consumption.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: first antenna 110: second antenna
120: Side mirror 130: Illumination part
140: control unit 150:

Claims (8)

A plurality of first antennas provided on a door side of a vehicle and outputting either a first signal or a second signal;
A plurality of second antennas provided on the console and bumper sides of the vehicle and outputting a second signal; And
When the plurality of first antennas output a first signal, performs a welcome function of the vehicle by confirming whether or not a pob is present within a communication coverage according to the first signal, performs a welcome function of the vehicle, And a control unit for controlling the antenna and the second antenna to output the second signal,
Wherein an output current of the first antenna for outputting the first signal is smaller than an output current of the first antenna and the second antenna for outputting the second signal.
Smart key system control device. The method according to claim 1,
The first signal is output to the control unit, and when the first signal is received,
Wherein the control unit controls to perform the welcome function when the response signal is input.
Smart key system control device. The method according to claim 1,
Wherein the first signal comprises at least one of an LF signal or a UHF signal,
And the second signal is an LF signal.
Smart key system control device. The method of claim 3,
When the UHF signal is included in the first signal, the controller confirms whether or not the PORV is present within a communication coverage range according to the UHF signal, and determines whether the PORV is present according to the operation of the RKE And a control unit
Smart key system control device. The method of claim 3,
When the UHF signal is included in the first signal, the control unit controls the welcome function to be performed when the distance between the vehicle and the vehicle is shorter than a predetermined distance in the communication range corresponding to the UHF signal ≪ / RTI >
Smart key system control device. The method according to claim 1,
Wherein the controller verifies whether or not the pod exists in a communication coverage area corresponding to the second signal and requests the pod for position information according to whether the pod exists or not.
Smart key system control device. The method according to claim 6,
Wherein the control unit performs at least one of a door approach detection function, a trunk approach detection function, an indoor zone detection function, or a trunk close alert function according to position information of the Pob received from the Pob.
Smart key system control device. The method according to claim 1,
Wherein the welcoming function operates at least one of a side mirror or a lighting unit.
Smart key system control device.
KR1020140138291A 2014-10-14 2014-10-14 Apparatus for controlling smart key system KR20160044119A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108806033A (en) * 2017-05-02 2018-11-13 Lg电子株式会社 Intelligent key, control system and the method for vehicle
WO2020075931A1 (en) * 2018-10-11 2020-04-16 엘지이노텍(주) Method and apparatus for determining location of device using multiple antenna switching
KR20200059457A (en) * 2018-11-21 2020-05-29 현대자동차주식회사 Vehicle and controlling method thereof
KR20220125140A (en) * 2021-03-04 2022-09-14 주식회사 센스톤 Method, system and program for controlling vehicle based on virtual code for authentication

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108806033A (en) * 2017-05-02 2018-11-13 Lg电子株式会社 Intelligent key, control system and the method for vehicle
CN108806033B (en) * 2017-05-02 2021-07-13 Lg电子株式会社 Intelligent key, control system and method for vehicle
WO2020075931A1 (en) * 2018-10-11 2020-04-16 엘지이노텍(주) Method and apparatus for determining location of device using multiple antenna switching
CN112839845A (en) * 2018-10-11 2021-05-25 Lg伊诺特有限公司 Method and apparatus for determining a location of a device using multi-antenna switching
EP3865354A4 (en) * 2018-10-11 2022-07-20 LG Innotek Co., Ltd. Method and apparatus for determining location of device using multiple antenna switching
US11889376B2 (en) 2018-10-11 2024-01-30 Lg Innotek Co., Ltd. Method and apparatus for determining location of device using multiple antenna switching
KR20200059457A (en) * 2018-11-21 2020-05-29 현대자동차주식회사 Vehicle and controlling method thereof
KR20220125140A (en) * 2021-03-04 2022-09-14 주식회사 센스톤 Method, system and program for controlling vehicle based on virtual code for authentication

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