JP3786064B2 - Keyless entry system and authentication code registration method for the portable device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a keyless entry system, in particular, a keyless entry system including a portable device having a wireless communication function and a manual key, and an authentication code registration method for the portable device in the keyless entry system.
[0002]
[Prior art]
Conventionally, in a vehicle such as an automobile, as a system for performing opening / closing control of an opening / closing body such as a door that covers a part of the vehicle body so as to be openable / closable, it is transmitted from a portable device having a unique authentication code and having a wireless communication function The lock / unlock signal is received by the in-vehicle wireless device, and after confirming that the authentication code of the portable device matches the authentication code registered in advance in the memory of the control unit linked to the in-vehicle wireless device, A so-called keyless entry system in which a lock / unlock mechanism can be remotely operated by driving a lock / unlock mechanism is generally well known.
[0003]
In recent years, based on the communication data between the in-vehicle wireless device and the portable device, the unique authentication code set in the portable device and the authentication code registered in advance in the memory of the control unit linked to the in-vehicle wireless device There is also known a so-called passive keyless entry system in which the lock / unlock state of the opening / closing body is automatically controlled based on the comparison result (for example, Japanese Patent Laid-Open No. 5-106376). Some have already been put to practical use.
[0004]
According to such a passive keyless entry system, when the authentication code of the portable device matches that registered in advance, the holder holding the portable device (for example, an occupant of the vehicle) communicates with the in-vehicle wireless device. Just by entering the range of communication, that is, by approaching the vehicle, or by pressing a switch at a specific part of the vehicle such as a door knob, the door can be opened without having to perform a special operation such as an outgoing operation with a portable device. It can be unlocked, further enhancing convenience.
[0005]
In vehicles such as automobiles equipped with the above keyless entry system, if the occupant holding the portable device is outside the vehicle and the portable device becomes unusable due to, for example, a malfunction or battery exhaustion, the occupant opens the door. It cannot be locked and cannot enter the car.
Therefore, for such an emergency, a mechanical manual key is attached to the portable device, and when the portable device cannot be used, the manual key is inserted into the key cylinder of the door and rotated. It is possible to unlock the door by operating it.
[0006]
Also, for such manual keys, a unique authentication code is set, and the authentication code of the applied key is the same as that registered in advance in the in-vehicle control unit (specifically, in its memory means). It is known to improve the security by enabling the operation of the key when authentication confirmation is established, and disabling the operation when there is a mismatch.
[0007]
For a vehicle equipped with such a keyless entry system, when the authentication code of the portable device is registered in advance in the control unit of the system mounted on the vehicle, conventionally, from the portable device at the final assembly line of the vehicle. An electromagnetic wave is transmitted to the in-vehicle control unit, and the portable device authentication code is written in a memory means in the control unit, for example, a PROM (EEPROM) capable of electrically writing and erasing data. Like to do.
[0008]
[Problems to be solved by the invention]
However, since many vehicles flow on the vehicle assembly line, other vehicles in the vicinity that flow on the line when transmitting an electromagnetic wave from a portable device and registering an authentication code in the control unit of the corresponding vehicle. In addition, there is a possibility that the transmission radio wave from the portable device arrives and is erroneously registered in the other vehicle.
[0009]
For this reason, it may be possible to prevent the transmission radio wave from the portable device from reaching other vehicles by providing a shield plate around the station where the authentication code is registered to shield the electromagnetic wave, but the equipment is large. However, there was a problem that the cost was high.
[0010]
The present invention has been made in view of the above technical problem, and performs authentication confirmation of an authentication code of the portable device based on communication data between the portable device and the in-vehicle wireless device to control locking / unlocking of the opening / closing body. For keyless entry systems, keyless entry can be prevented when registering a mobile device authentication code in a vehicle control unit in the vehicle assembly line without requiring large-scale equipment and in other nearby vehicles. It is an object of the present invention to provide a system and a method for registering an authentication code of a portable device in the system.
[0011]
[Means for Solving the Problems]
For this reason, the keyless entry system according to the present invention is based on communication data between a portable device having a unique authentication code and a wireless communication function, and the portable device's authentication code and in-vehicle storage. An in-vehicle locking / unlocking control means for comparing a portable device registration code registered in the means in advance and controlling the locking / unlocking state of the opening / closing body of the vehicle based on the comparison result, and having a unique authentication code and wireless A manual key having a communication function and capable of manually locking and unlocking the opening / closing body of the vehicle, and an authentication code of the manual key when the manual key is located at or near the key cylinder of the opening / closing body of the vehicle In-vehicle key operation that compares the manual key registration code registered in advance in the in-vehicle storage means and controls whether or not to operate the manual key based on the comparison result And a key code reading means for reading the authentication code set in the manual key, and a code based on the authentication code of the manual key read by the key code reading means. Portable device code setting means for setting as an authentication code of the portable device, and on-vehicle code reading means for reading the authentication code of the manual key when the manual key is located at or near the key cylinder of the opening / closing body of the vehicle; A first registration means for registering the manual key authentication code read by the in-vehicle code reading means in the in-vehicle storage means as a manual key registration code, and registering the code based on the manual key authentication code in the portable device And a second registration means for registering as a code in an in-vehicle storage means.
[0012]
In this case, it is preferable that the authentication code of the portable device and the portable device registration code are obtained by performing predetermined arithmetic processing on the authentication code of the manual key.
[0013]
The authentication code registration method for a portable device in the keyless entry system according to the present invention is based on communication data between a portable device having a unique authentication code and a wireless communication function and the portable device. A vehicle-mounted locking / unlocking control means for controlling the lock / unlock state of the opening / closing body of the vehicle based on the comparison result When the manual key is located at or near the key cylinder of the opening / closing body of the vehicle, the wireless communication function is provided and the opening / closing body of the vehicle is manually locked / unlocked. The manual key authentication code is read and compared with the manual key registration code registered in advance in the vehicle storage means, and the manual key operation is performed based on the comparison result. A first key code reading step for reading an authentication code set in the manual key, the method for registering the authentication code of the portable device in a keyless entry system comprising: A portable device code setting step for setting a code based on the authentication code of the manual key read in the key code reading step as an authentication code of the portable device, and the manual key is a key cylinder of the opening / closing body of the vehicle or the A second key code reading step for reading the manual key authentication code when positioned in the vicinity, and the manual key authentication code read by the vehicle code reading means as the manual key registration code. A first registration step for registering with the means, and a code based on the manual key authentication code. The is obtained by comprising the a second registration step of registering with the in-vehicle storage means as the portable device registration code.
[0014]
In this case, it is preferable that the authentication code of the portable device and the portable device registration code are obtained by performing predetermined arithmetic processing on the authentication code of the manual key.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram showing an outline of a portable device code setting process for setting and writing an authentication code to a portable device (so-called authentication card) used in a keyless entry system for an automobile according to an embodiment of the present invention. It is explanatory drawing.
[0016]
As shown in this figure, the portable device P is configured by, for example, a PROM (EEPROM) capable of electrically writing and erasing data as memory means in which an authentication code unique to the portable device P is written. A code memory unit Mp is attached. Details of the writing of the portable device authentication code to the code memory unit Mp will be described later.
[0017]
In the portable device P, a mechanical manual key K is incorporated in the portable device P so that the door of the vehicle can be manually locked (locked) / unlocked (unlocked). It is provided as an incidental.
Therefore, even if the occupant holding the portable device P is outside the vehicle and the portable device P becomes unusable due to, for example, a failure or a battery exhaustion, the occupant can use the manual key built in the portable device P. By inserting K into the key cylinder of the door and turning it, the door can be unlocked and boarded in the vehicle.
[0018]
The manual key K is also set with an authentication code unique to the key K. That is, a so-called transponder Tk is attached to the manual key K, and an authentication code (key authentication code) of the manual key K is written in the transponder Tk so as to be electrically readable.
[0019]
The setting and writing of the authentication code for the manual key K is performed by a conventionally known method using a conventionally known authentication code setting and writing device, and this step is preferably performed by the manual key K. Of suppliers. However, it may be performed by a supplier of system equipment such as a control system in the keyless entry system or by a manufacturer of the automobile.
[0020]
In the present embodiment, the portable device code setting step for setting and writing the authentication code for the portable device P is performed by using the manual key K provided to be included in the portable device P, for example. This is performed by the portable device code setting device 10.
[0021]
The portable machine code setting device 10 is provided with a key cylinder 19 for code reading having a key hole 19h similar to a key cylinder of an automobile door to which a manual key K is applied. By inserting the manual key K into the hole 19 h or bringing the key K close to the key cylinder 19, the authentication code of the key K is transmitted from the transponder Tk of the manual key K to the portable device code setting device 10.
[0022]
As shown in the block configuration diagram of FIG. 2, the portable device code setting device 10 includes a key code reading unit 11 for reading the authentication code of the manual key K attached to the portable device P, and the reading unit 11 reads the code. An authentication code calculation setting unit 12 that calculates and sets an authentication code of the portable device P by a calculation process based on the key authentication code, and the portable device authentication code obtained by the calculation setting unit 12 is stored in the code memory of the portable device P. A portable device code writing unit 13 for transmitting and writing to the unit Mp.
[0023]
Next, the authentication code setting and writing process of the portable device P by the portable device code setting device 10 will be described with reference to the flowchart of FIG.
When the manual key K is inserted into the key hole 19h of the key cylinder 19 for reading the code (step # 1), the authentication code Dk of the manual key K is transferred from the transponder Tk of the manual key K to the portable device code setting device 10. The transmitted authentication code Dk is read by the key code reading unit 11 (step # 2: first key code reading step).
[0024]
The authentication code calculation setting unit 12 uses the authentication code Dk of the manual key K read by the key code reading unit 11 to perform calculation processing according to a predetermined calculation formula y = f (x) (step # 3). ). That is, assuming that x = Dk, the calculation value Dp = f (Dk) corresponding to the key authentication code Dk can be obtained by substituting the authentication code Dk of the manual key K into the above calculation formula.
[0025]
Then, the calculated value Dp based on the key authentication code Dk of the manual key K is set as the authentication code of the portable device P (step # 4: portable device code setting step).
The portable device authentication code Dp set in this way is transmitted and written to the code memory unit Mp of the portable device P by the portable device code writing unit 13 in step # 5.
[0026]
As an arithmetic expression used in the authentication code arithmetic unit 12, for example, an arithmetic expression in which y = x, that is, the portable device authentication code Dp is the same as the key authentication code Dk can be adopted. In this case, the arithmetic processing itself can be made unnecessary. However, in order to realize higher security, it is preferable that the two authentication codes Dp and Dk are different.
[0027]
The setting and writing process of the authentication code Dp for the portable device P as described above is preferably performed by a supplier of system equipment such as a control system in the keyless entry system. May be performed.
[0028]
As described above, for an automobile equipped with a keyless entry system including the portable device P in which the authentication code Dp is set, the authentication code Dp of the portable device P is registered in advance in the control unit of the system mounted on the vehicle. In this case, the registration process is performed in the final assembly line of the vehicle.
Next, the registration process of the portable device authentication code Dp to the control unit will be described. FIG. 4 is a schematic explanatory diagram showing an outline of such a registration process.
[0029]
As shown in this figure, in the present embodiment, a car A equipped with a keyless entry system equipped with a portable device P is attached to the portable device P, for example, in the final assembly line La. Using the manual key K provided, the storage of the control unit 20 of the keyless entry system mounted on the vehicle A for both the key authentication code Dk of the manual key K and the portable device authentication code Dp of the portable device P. Registration to the device is performed.
[0030]
FIG. 5 is a block diagram schematically showing the configuration of the control unit 20. The control unit 20 controls the entire keyless entry system. The control unit 20 includes, for example, a microcomputer as a main part, and a communication unit 21 connected to the user authentication antenna 3 as shown in FIG. The authentication determination unit 22 that performs authentication confirmation of the authentication code Dp of the portable device P, the memory unit 23 attached to the authentication determination unit 22, and the door lock / actuator 5 are controlled to lock each door (locking). And a locking / unlocking control unit 24 for controlling an unlocked (unlocked) state.
[0031]
Further, the control unit 20 uses, for example, a manual key K provided so as to be built in the portable device P, and the key authentication code Dk of the manual key K and the portable device authentication code Dp of the portable device P. In order to perform registration in the memory unit 23 of the control unit 20 of the keyless entry system mounted on the vehicle A, an authentication code registration device 30 which will be described in detail later is provided.
[0032]
The user authentication antenna 3 receives an LF wave (electromagnetic wave) from the above-described portable device P having a communication function held and carried by a specific person such as an occupant of the vehicle A, and communicates with the portable device P. The maximum communication range is determined according to the reception sensitivity of the known antenna device. This user authentication antenna 3 is used for the vehicle A, for example, in a trim space formed between the outer handle portion of the driver's seat door or the inner panel of the door main body and the resin door trim covering the passenger compartment side. It is installed at a suitable place in the outer part.
The door lock / actuator 5 drives a door locking / unlocking mechanism of the automobile to lock (lock) / unlock (unlock) each door. A motor is used as the drive source.
[0033]
The communication unit 21 provided in the control unit 20 can communicate with the portable device P via the user authentication antenna 3, and the communication data is input to the authentication determination unit 22.
The memory unit 23 attached to the authentication determination unit 22 is composed of, for example, a PROM (EEPROM) capable of electrically writing and erasing data. The authentication code Dp of the portable device P of the automobile A is registered in advance and stored / stored. Note that the authentication code Dk for the manual key K is also registered and stored in advance in the memory unit 23 by a method described later.
[0034]
When the communication data with the portable device P outside the vehicle is input from the communication unit 21, the authentication determination unit 22 receives the authentication code obtained from the data and the authentication code Dp registered in the memory unit 23 in advance. Are compared (authentication confirmation), and if they match, an authentication confirmation signal is output to the locking / unlocking control unit 24. Upon receiving this signal, the locking / unlocking control unit 24 outputs a control signal to the door lock actuator 5 to unlock the door.
[0035]
On the other hand, when the occupant holding the portable device P gets off and leaves the own vehicle A while the door is unlocked, the occupant (and hence the portable device P) communicates with the user authentication antenna 3. When the communication data cannot be obtained due to the outside, the authentication determination unit 22 outputs an authentication impossible signal to the locking / unlocking control unit 24. Upon receiving this signal, the locking / unlocking control unit 24 outputs a control signal to the door lock actuator 5 to lock the door.
[0036]
In the present embodiment, as described above, the key authentication code Dk of the manual key K and the portable device of the portable device P are used by using the manual key K provided to be included in the portable device P, for example. An authentication code registration device 30 is provided in the control unit 20 in order to register both of the authentication codes Dp in the memory unit 23. The authentication code registration device 30 may be provided separately from the control unit 20.
[0037]
The authentication code registration device 30 includes a code reading unit 31 for reading the authentication code Dk of the manual key K attached to the portable device P, and the key authentication code Dk read by the reading unit 31 as a manual key registration code. A first registration unit 32 registered in the memory unit 23, an authentication code calculation unit 33 for calculating the authentication code Dp of the portable device P by a calculation process based on the key authentication code Dk read by the code reading unit 31; And a second registration unit that registers the portable device authentication code Dp obtained by the calculation unit 33 in the memory unit 23 as a portable device registration code.
[0038]
From the transponder Tk of the manual key K by inserting the manual key K into the key hole of the key cylinder 9 provided in the corresponding driver's seat door of the vehicle A or by bringing the manual key K close to the key cylinder 9 The authentication code of the key K is transmitted to the control unit 20 and is read by the code reading unit 31 of the authentication code registration device 30.
[0039]
The authentication code registration device 30 is used only when registering the key authentication code Dk of the manual key K and the portable device authentication code Dp of the portable device P in the memory unit 23, and performs such registration. At normal times, the code reader 31 is set to be inactive except for the code reading unit 31.
[0040]
That is, after the registration process described below is completed, when the automobile A is used, when the manual key K is inserted into the key hole of the key cylinder 9 provided in the outer portion of the driver's door, or the key cylinder When the manual key K approaches to the vicinity of 9, the manual key K authentication code is transmitted to the control unit 20 from the transponder Tk of the manual key K, and the transmitted key authentication code is the above code. It is read by the reading unit 31.
[0041]
Then, the key authentication code read by the code reading unit 31 is transmitted to the authentication determination unit 22 (see the broken line display in FIG. 5), and the authentication determination unit 22 transmits the transmitted key authentication code and the memory unit. 23 is compared (authentication confirmation) with a key registration authentication code Dk registered in advance in 23, and if both match, an authentication confirmation signal is output to the locking / unlocking control unit 24. Upon receiving this signal, the locking / unlocking control unit 24 outputs a control signal to the door lock actuator 5 to unlock the door.
[0042]
Next, the registration process of the key authentication code Dk of the manual key K and the portable device authentication code Dp of the portable device P to the memory unit 23 by the authentication code registration device 30 will be described with reference to the flowchart of FIG.
First, when the manual key K is inserted into the key hole of the key cylinder 9 of the driver's door of the automobile A (step # 11), the authentication code Dk of the manual key K is transferred from the transponder Tk of the manual key K to the control unit 20. It is transmitted to the authentication code registration device 30, and the transmitted key authentication code Dk is read by the code reading unit 31 (step # 12: second key code reading step). Then, the read key authentication code Dk is transmitted and written to the memory unit 23 by the first registration unit 32, and is registered in the memory unit 23 as a manual key registration code (step # 13: first registration). Step).
[0043]
The authentication code calculation unit 33 is based on the authentication code Dk of the manual key K read by the code reading unit 31, and is the same as the calculation formula used in the authentication code calculation setting unit 12 of the portable device code setting device 20 described above. Arithmetic processing according to the arithmetic expression y = f (x) is performed (step # 14). That is, when x = Dk, the authentication code Dk of the manual key K is substituted into the above equation, so that the calculated value Dp = f (Dk) corresponding to the key authentication code Dk, that is, the authentication of the portable device code setting device 20 An operation value Dp that is the same as the operation value Dp obtained by the code operation setting unit 12 is obtained.
[0044]
Then, the calculated value Dp based on the key authentication code Dk of the manual key K, that is, the same portable device authentication code Dp set by the authentication code calculation setting unit 12 of the portable device code setting device 20 is registered in the second registration. The unit 34 transmits and writes it to the memory unit 23 and registers it in the memory unit 23 as a portable device registration code (step # 15: second registration step).
[0045]
As described above, according to the present embodiment, the code Dp based on the authentication code Dk of the manual key K read by the key code reading unit 21 of the portable device code setting device 20 in the first key code reading step. However, the authentication code calculation setting unit 22 sets the authentication code Dp of the portable device P in the portable device code setting step. Then, the authentication code Dk of the manual key K read by the code reading unit 31 of the authentication code registration device 30 in the in-vehicle control unit 20 in the second key code reading step is obtained by the first registration unit 32 in the first registration step. The manual key registration code Dk is registered in the memory unit 23 of the in-vehicle control unit 20, and the code Dp based on the manual key authentication code Dk, that is, the portable device authentication code set by the portable device code setting device 10 is used. The same authentication code Dp as Dp is registered in the memory unit 23 by the second registration unit 34 as the portable device registration code Dp in the second registration step.
[0046]
The code reading unit 31 of the on-vehicle authentication code registration device 30 reads the authentication code Dk of the manual key K when the manual key K is positioned at or near the key cylinder 9 of the driver's door of the vehicle A. When the authentication code Dp of the machine P is registered in the memory unit 23 of the vehicle-mounted control unit 20, the manual key K is set to the key cylinder 9 of the driver's door of the vehicle A or the vicinity thereof on the assembly line of the vehicle A. The authentication code Dk is read, and the code Dp based on the key authentication code Dk is registered in the memory unit 23 of the in-vehicle control unit 20 as a portable device registration code.
[0047]
In this case, the distance from the manual key K to the vehicle-mounted control unit 20 is much shorter than the distance to the surrounding other vehicle that flows on the assembly line. Therefore, the authentication code Dk of the manual key K is the surrounding other vehicle. Is not likely to be received. That is, it is possible to effectively prevent the authentication code Dp of the portable device P from being erroneously registered in other nearby vehicles without requiring a large facility such as providing a shield plate around the station where the authentication code is registered. It can be done.
[0048]
In the above description, the setting of the portable device authentication code Dp in the portable device code setting device 10 and the portable device registration code Dp in the authentication code registration device 30 are the same as the key authentication code Dk of the manual key K. However, the portable device authentication code Dp and the portable device registration code Dp only have to be based on the key authentication code Dk of the manual key K. There is no need to perform specific arithmetic processing. For example, the portable device authentication code Dp and the portable device registration code Dp may be the same as the key authentication code Dk of the manual key K.
[0049]
In addition, the above embodiment is for a case where the present invention is applied to a so-called passive keyless entry system. However, the present invention is not limited to such a case, and is effective in a conventional type keyless entry system. It can be applied.
Thus, it goes without saying that the present invention is not limited to the above-described embodiments, and various changes or improvements can be made without departing from the scope of the invention.
[0050]
【The invention's effect】
According to the present invention, the code based on the manual key authentication code read by the key code reading means in the first key code reading step is used as the portable device authentication code by the portable device code setting means in the portable device code setting step. Is set. The manual key authentication code read by the in-vehicle code reading means in the second key code reading step is registered in the in-vehicle storage means by the first registration means as the manual key registration code in the first registration step. A code based on the authentication code of the manual key, that is, the same authentication code as the portable device authentication code set by the portable device code setting means is used as the portable device registration code by the second registration means in the second registration step. Registered in the storage means.
The on-vehicle code reading means reads the manual key authentication code when the manual key is located at or near the key cylinder of the opening / closing body of the vehicle, so when registering the authentication code of the portable device in the on-vehicle storage means In the vehicle assembly line, the authentication key is read by positioning the manual key at or near the key cylinder of the opening / closing body of the vehicle, and the code based on the key authentication code is registered in the portable device. It is registered in the vehicle storage means as a code.
In this case, the distance from the manual key to the vehicle-mounted storage means is much shorter than the distance to the other vehicle in the vicinity that flows on the assembly line. Therefore, the authentication code of the manual key is received by the other vehicle in the vicinity. There is no fear. That is, it is possible to effectively prevent the authentication code of the portable device from being erroneously registered in other nearby vehicles without requiring a large facility such as providing a shield plate around the station where the authentication code is registered.
[0051]
In the above case, since the authentication code of the portable device and the portable device registration code are obtained by performing predetermined calculation processing on the authentication code of the manual key, the calculation formula in this calculation processing is By making various settings, the portable device authentication code can be different from the manual key authentication code, and higher security can be realized.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory diagram showing an outline of a portable device code setting process for setting and writing an authentication code to a portable device used in a keyless entry system for an automobile according to an embodiment of the present invention.
FIG. 2 is a block diagram schematically showing the configuration of a portable device code setting device for setting and writing an authentication code for the portable device.
FIG. 3 is a flowchart for explaining an authentication code setting and writing process of the portable device by the portable device code setting device.
FIG. 4 is a schematic explanatory diagram showing an outline of a process of registering a portable device authentication code in a control unit.
FIG. 5 is a block diagram schematically showing a configuration of a control unit of the keyless entry system.
FIG. 6 is a flowchart for explaining a process of registering a key authentication code and a portable device authentication code in a memory unit by an authentication code registration device of the control unit.
[Explanation of symbols]
3 ... Antenna for user authentication
5. Door lock actuator
9 ... Key cylinder
10 ... Portable device code setting device
11 ... Key code reader
12 ... Authentication code calculation setting section
13: Code writing section
20 ... Control unit
21 ... Communication Department
22: Authentication determination unit
23. Memory part
24. Locking / unlocking control unit
30 ... Authentication code registration device
31 ... code reading part
32 ... 1st registration part
33 ... Authentication code calculation section
34. Second registration unit
A ... Automobile
Dk ... Key authentication code
Dp ... Mobile device authentication code
K ... Manual key
Mp: Code memory part of portable device
P ... Portable machine

Claims (4)

A portable device having a unique authentication code and a wireless communication function;
Based on the communication data with the portable device, an authentication code of the portable device is compared with a portable device registration code registered in advance in the in-vehicle storage means. In-vehicle locking / unlocking control means for controlling the lock state;
A manual key having a unique authentication code and having a wireless communication function, and capable of manually locking and unlocking the opening and closing body of the vehicle;
When the manual key is located at or near the key cylinder of the opening / closing body of the vehicle, the authentication code of the manual key is read and compared with the manual key registration code registered in advance in the in-vehicle storage means. An in-vehicle key operation control means for controlling whether or not to operate the manual key based on
In the keyless entry system with
Key code reading means for reading the authentication code set in the manual key;
Portable device code setting means for setting a code based on the authentication code of the manual key read by the key code reading means as the authentication code of the portable device;
Vehicle-mounted code reading means for reading an authentication code of the manual key when the manual key is located at or near the key cylinder of the opening / closing body of the vehicle;
A first registration means for registering the manual key authentication code read by the in-vehicle code reading means in the in-vehicle storage means as the manual key registration code;
Second registration means for registering a code based on the authentication code of the manual key in the in-vehicle storage means as the portable device registration code;
Keyless entry system characterized by having 2. The keyless entry system according to claim 1, wherein the portable device authentication code and the portable device registration code are obtained by performing predetermined arithmetic processing on the manual key authentication code. A portable device having a unique authentication code and a wireless communication function;
Based on the communication data with the portable device, an authentication code of the portable device is compared with a portable device registration code registered in advance in the in-vehicle storage means. In-vehicle locking / unlocking control means for controlling the lock state;
A manual key having a unique authentication code and having a wireless communication function, and capable of manually locking and unlocking the opening and closing body of the vehicle;
When the manual key is located at or near the key cylinder of the opening / closing body of the vehicle, the authentication code of the manual key is read and compared with the manual key registration code registered in advance in the in-vehicle storage means. An in-vehicle key operation control means for controlling whether or not to operate the manual key based on
A method for registering an authentication code of the portable device in a keyless entry system comprising:
A first key code reading step for reading the authentication code set in the manual key;
A portable device code setting step for setting a code based on the authentication code of the manual key read in the key code reading step as an authentication code of the portable device;
A second key code reading step of reading an authentication code of the manual key when the manual key is positioned at or near the key cylinder of the opening / closing body of the vehicle;
A first registration step of registering an authentication code of the manual key read by the in-vehicle code reading means in the in-vehicle storage means as the manual key registration code;
A second registration step of registering a code based on the manual key authentication code in the in-vehicle storage means as the portable device registration code;
A method of registering an authentication code for a portable device in a keyless entry system. 4. The keyless entry system according to claim 3, wherein the portable device authentication code and the portable device registration code are obtained by performing predetermined arithmetic processing on the manual key authentication code. How to register a mobile device authentication code.

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