KR100980974B1 - Smart key of button start vehicle - Google Patents

Abstract

The present invention includes a solar cell in a smart key (including a “FOB key”) used in a button starter vehicle, and uses a smart key using electrical energy stored in the solar cell in an emergency when the main battery of the smart key is exhausted. It relates to a technique for operating the normal.

To this end, the present invention provides a smart key for remotely controlling the door opening or engine start of a button starting vehicle, a solar panel installed outside the smart key to collect solar energy, and the collected solar energy as electrical energy. A photoelectric conversion unit for converting, a solar cell for storing the electrical energy, an emergency button installed on the outside of the smart key, and when the emergency button is turned on, the electrical energy stored in the solar cell is provided as the operating power of the smart key. And a power supply path.

Description

Smart key of button start vehicle {SMART KEY OF VEHICLE HAVING BUTTON STARTING SYSTEM}

The present invention relates to a smart key of a button starter vehicle, and more particularly, includes a solar cell in a smart key (including a “FOB key”) used in a button starter vehicle, and the main battery of the smart key is exhausted. The present invention relates to a technology for normally operating a smart key by using electrical energy stored in the solar cell in an emergency.

Recently, mounting of an immobilizer system, which is a vehicle anti-theft system associated with a ignition key, has become common in preparation for vehicle theft.

As is known, the immobilizer system wirelessly generates an encryption code from the smart key (including the FOB key) and permits the vehicle to start if the smart key controller installed on the vehicle matches the ID stored in advance. It is a system.

Referring to Figure 1, the external structure of the conventional smart key will be described.

Conventional smart key is provided with a door lock button (1), the door open button (2), the trunk open button (3), the horn ring button (4) of the vehicle on the front, and is provided in the vehicle separated from the case of the smart key in an emergency An emergency start key 6 for manually locking or opening the vehicle door by inserting and rotating it into a key hole, and a key release button 5 for separating the emergency start key 6 from the smart key; It is provided.

The emergency start key 6 is fixed to a predetermined area of the outer case of the smart key by the key release button 5, and when the key release button 5 is pressed, the part which is fixed by the key release button 5 is pressed. As it is released, the emergency start key 6 is separated from the outer case of the smart key.

The driver is able to board the vehicle after opening the vehicle door by removing the emergency start key 6 from the smart key even when the battery of the smart key is exhausted and the electronic operation of the smart key is impossible.

The smart key needs to be activated to start the driver even after boarding the vehicle. At this time, if the smart key is exhausted and the battery cannot be operated normally, even if the driver presses the start button (see FIG. 2) to start the vehicle, the smart key is not authenticated and starts in the vehicle. Will not take this.

In such a case, the vehicle is provided with a smart key holder 12 so that when the battery-depleted smart key 14 is inserted into the smart key holder 12, the smart key 14 is removed from the smart key holder 12. By receiving emergency power, the vehicle can be started by transmitting authentication information to a smart key controller (not shown) configured in the vehicle. However, the frequency of occurrence when the battery of the smart key 14 is exhausted as described above and the smart key 14 does not operate normally is very low. Nevertheless, the smart key holder 12 is provided for the non-alarming of the smart key 14.

On the other hand, attempts have been made to steadily remove the smart key holder 12 in order to reduce the vehicle production cost and increase the efficiency of the vehicle interior design.

As part of the attempt, a predetermined portion (e.g., start up) of an antenna for removing the smart key holder in the vehicle, supplying emergency power to the smart key that has run out of battery power, and receiving authentication information from the smart key Although a method of installing in a button or a gear box, etc. has been proposed, there are disadvantages in that the smart key must be located close to the antenna and an antenna to be operated in an emergency is provided separately.

The present invention is provided from the solar cell when the operator enters the emergency button when the battery power of the smart key is exhausted in the state of equipped with a solar cell on the smart key without having a separate equipment for the emergency of the smart key in the button start-up vehicle An object of the present invention is to enable the smart key to operate normally with the vehicle by immobilizing the smart key by a power source.

 The smart key of the button start vehicle according to the present invention is a smart key for remotely controlling the door opening and engine start of a button start vehicle, the solar panel is installed outside the smart key to collect solar energy, the condensed sun A photoelectric conversion unit for converting light energy into electrical energy, a solar cell for storing the electrical energy, an emergency button installed outside the smart key, and the electrical energy stored in the solar cell when the emergency button is turned on. And a power supply path for providing the operating power of the key.

Preferably, the smart key of the present invention is a battery for providing an operating power with the smart key, an antenna unit for transmitting and receiving a radio signal for communication with the vehicle, the signal processing for the immobilizer communication with the vehicle by controlling the antenna unit It may be provided with a control unit for performing.

Preferably, the antenna unit and the control unit of the present invention may operate with an operating power source provided from at least one of the battery or the solar cell.

According to the smart key of the button start-up vehicle according to the present invention, since the smart key can be operated by the operating power provided from the solar cell in the event that the battery is exhausted, the smart key can be removed according to the smart key. The weight and size can be reduced.

In addition, according to the smart key of the button start vehicle according to the present invention, it is possible to remove the key hole (Key hole) that is installed in the vehicle for the emergency of the smart key, the antenna is installed separately for the emergency of the smart key in the vehicle Since it can be removed and a smart key holder does not need to be installed in a vehicle, there exists an effect that vehicle production cost can be reduced.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a detailed configuration diagram of a smart key of a button start vehicle according to an embodiment of the present invention.

Smart key of the button start vehicle according to an embodiment of the present invention is provided with a solar panel 32 for concentrating solar energy on the outside of the case, and an emergency button 38 to allow the driver to set the emergency mode of the smart key. do.

The solar panel 32 and the emergency button 38 of the present invention can be configured in a predetermined portion of the rear of the smart key, as shown in Figure 4, the front of the smart key is closed as shown in Figure 1 Preferably, a button 1, a door open button 2, a trunk open button 3, and a horn ring button 4 are provided.

The smart key includes a photoelectric conversion unit 34 for converting the solar energy collected by the solar panel 32 into electrical energy, and a solar cell 36 for storing the electrical energy. The power supplied is provided to the devices that make up the smart key via the power supply path formed by the emergency button 38.

As shown in FIG. 3, the power supply path by the solar cell 36 is connected to the control unit 40, the LF antenna 42, and the RF antenna 44 through the emergency button 38.

The LF antenna 42 and the RF antenna 44 provided in the smart key are configured to transmit and receive a radio signal for communication with the vehicle, and the immobilizer communication signal is transmitted to the vehicle as an RF signal or an LF signal under the control of the controller 40. The controller 40 may transmit and receive an RF signal or an LF signal transmitted from the vehicle and transmit the received RF signal or the LF signal to the controller 40 so that the controller 40 may perform immobilizer communication with the vehicle.

The battery 46 is a power supply that provides battery power throughout the device of the smart key.

3 does not show all configurations provided for the immobilizer communication in the actual smart key, and for convenience of description, the controller 40, the LF antenna 42, and the RF antenna 44 as configurations for the immobilizer communication with the vehicle. ) Only. It is well known to those skilled in the art that other components may be added to the immobilizer communication of the vehicle in addition to the configuration shown in FIG. 3, and thus a detailed description thereof will be omitted.

When the smart key holder who detects the state where the battery 46 is exhausted operates the emergency button 38, the power supply path by the solar cell 36 is connected to the controller 40, the LF antenna 42, and An operating power provided from the solar cell 36 is applied to the RF antenna 44 to enable stable immobilizer communication with the vehicle.

An operation of the smart key and button starting vehicle according to an embodiment of the present invention will be described with reference to the flowchart shown in FIG. 5.

The smart key controller 200 is provided in the vehicle for the smart key 100 and the immobilizer communication.

The smart key controller 200 communicates with electronic control devices in the vehicle through an in-vehicle network (eg, CAN) to detect a locked state of the door in the vehicle, a state in which the engine is turned off.

The smart key controller 200 controls the LF antenna 42 to periodically transmit the LF wake-up signal (S2) to detect the approach state of the smart key 100 (S3). If the smart key 100 is in a normal state, when the smart key 100 receives the LF wake-up signal, the smart key 100 will transmit an RF response signal including authentication information of the smart key, and if the smart key 100 is in an abnormal state, The smart key 100 will not transmit an RF response signal.

If no RF response signal is received, the smart key controller 200 determines that the smart key is not detected (S3 to No), and proceeds to step S2 to periodically transmit the LF wakeup signal.

Meanwhile, if the battery power of the smart key 100 is normally supplied (Yes in S4), the controller of the smart key 100 transmits an RF response signal including smart key authentication information through the RF antenna 44 ( S5).

When the RF response signal is received through the smart key control unit 200, the smart key control unit 200 determines that the smart key is detected in step S3 (YES in S3) smart key authentication information included in the RF response signal Authentication is performed for the smart key by using (S6).

In this case, the smart key authentication information may be identification information (eg, product serial number, etc.) uniquely registered in the smart key 100, and the smart key controller 200 may provide smart key authentication for the smart key 100. The information is registered in advance. In operation S4, the smart key controller 200 compares the pre-registered smart key authentication information with the smart key authentication information included in the RF response signal and performs authentication on the smart key based on the correspondence.

The smart key control unit 200 determines whether the authentication for the smart key is successful (S7). If the authentication result is successful (YES in S7), the smart key control unit 200 then receives a command input from the smart key 100. Performs the operation corresponding to (S8). On the contrary, if the determination performed in step S7 fails to perform the authentication (No in S7), the smart key controller 200 returns to the initial step and performs step S2.

The command input from the smart key 100 at step S8 may be a door open, a trunk open, a horn ring, and the like. When the door open button 2 is input from the smart key 100, the smart key controller 200 may be a body. When the vehicle door is opened through the control unit (BCM, not shown), and the trunk opening button 20 is input from the smart key 100, the smart key control unit 200 may open the trunk door of the vehicle through the body control unit. Do.

Unlike the above-described series of cases, if the battery power of the smart key 100 is not normally supplied (No in S4), the control unit 40 of the smart key 100 is inoperable because the operating power is not supplied. .

As described above, when the holder of the smart key 100 inputs the door open button 2 configured in the smart key 100 in a state in which the power supply of the battery 46 is abnormal, an operation desired by the holder of the smart key 100 is desired. This will not be done normally.

By the operation, when the holder of the smart key 100 detects an abnormal state of the smart key 100 and inputs the emergency button 38 (Yes in S11), the power supplied from the solar cell 36 is controlled by the controller 40. , LF antenna 42, and RF antenna 44 is supplied to (S12). The electrical energy stored in the solar cell 36 is the solar energy collected through the solar panel 32 included in the smart key 100 is converted into electrical energy through the photoelectric conversion unit 34.

The LF antenna 42 powered from the solar cell 36 receives the LF wake-up signal transmitted from the smart key controller 200, and the controller 40 controls the RF antenna 44 to control the LF wake-up. An RF response signal corresponding to the response signal of the signal is transmitted (S14). In this case, the RF response signal may include smart key authentication information for the smart key 100.

When the RF response signal transmitted in step S14 is transmitted to the smart key control unit 200, the smart key control unit 200 performs steps S3 to S8 described above to open the door or horn of the vehicle of the smart key 100. Enable remote control of ringing conditions.

After the smart key 100 holder has boarded through the above-described series of operations, pressing the button start button in the braked state performs immobilizer communication between the smart key 100 and the smart key control unit 200, and in this process If the authentication for the smart key 100 is successful, the smart key control unit 200 transmits a start permission message to an engine control unit (not shown) through the in-vehicle network to start the vehicle.

As described above, the present invention can reduce the production cost of the vehicle because it does not need to separately provide a means for supplying emergency power to the smart key in the emergency of the smart key on the vehicle side, that is, a smart key holder or an emergency power supply coil. Will be.

1 is a front view of a conventional smart key.

Figure 2 is an appearance configuration diagram showing a smart key holder and a start button installed in a conventional vehicle.

Figure 3 is a block diagram of a smart key of the button start vehicle according to an embodiment of the present invention.

4 is a rear view of a smart key according to an embodiment of the present invention.

5 is a flowchart for explaining the operation of the smart and button start vehicle according to an embodiment of the present invention.

Claims (3)

In the smart key which remotely controls the opening and closing of the door of the button start vehicle and the engine start, A solar panel installed outside the smart key to collect solar energy; A photoelectric conversion unit converting the concentrated solar energy into electrical energy; A solar cell for storing the electrical energy; An emergency button installed outside the smart key; And And a power supply path for providing electrical energy stored in the solar cell as operating power of the smart key when the emergency button is turned on.  Smart key of button start vehicle. The method according to claim 1, wherein the smart key is A battery providing operational power with the smart key; An antenna unit for transmitting and receiving a wireless signal for communication with the vehicle; And a controller configured to control the antenna unit to perform signal processing for immobilizer communication with the vehicle. Smart key of button start vehicle. The method of claim 2, wherein the antenna unit and the control unit Operating with an operating power source provided from at least one of the battery or the solar cell Smart key of button start vehicle.

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