JP4433304B2 - Smart keyless system - Google Patents

Description

  The present invention relates to a smart keyless system for a vehicle, and more particularly to a smart keyless system capable of supporting a so-called bullet mode that restricts a specific operation among operations on a vehicle.

  In recent years, smart keyless systems have been put into practical use. In the smart keyless system, the portable unit serves as a conventional mechanical key. For example, if a card-like portable unit is carried in a pocket or bag, operations such as door unlocking and engine starting can be performed without taking out and operating the key. In order to realize such a function, the portable unit incorporates transmission means for transmitting an ID signal in response to a request signal from the in-vehicle transmission means. Moreover, the control unit which permits operation, such as door unlocking, is mounted in the vehicle side, when authentication of the ID signal received from the portable unit is materialized (for example, refer patent document 1).

  On the other hand, conventionally, a mechanical so-called bullet key may be used in addition to a normal mechanical key. A valet key is a key that is used when, for example, a key is handed over to a hotel valet parking staff to leave a car, and with that key, the door can be unlocked and the engine can be started, but the trunk, glove box, etc. Unable to open the storage compartment.

  Furthermore, a smart keyless system that can cope with such a bullet mode has been proposed (see, for example, Patent Document 2). Here, the bullet mode refers to a state in which a specific operation on the vehicle is selectively restricted in the smart keyless system, for example, the engine can be started but the storage compartment cannot be opened. State.

  Patent Document 2 describes several methods for realizing a bullet mode in a smart keyless system. For example, a system using a mobile unit for bullet mode separately from a normal mobile unit is described. Also described is a method for setting the bullet mode by the owner operating a mechanical lock of the vehicle with a mechanical key. Furthermore, the mobile unit is composed of two parts, and only one authentication code for the bullet mode is transmitted from one separated part, and connecting both parts allows full access to the vehicle. A method is also described in which an authentication code necessary for the transmission is transmitted.

JP 2003-269019 A Special table 2003-511588 gazette

  By the way, even in a vehicle that employs a smart keyless system, an emergency mechanical key is usually prepared in preparation for the occurrence of a situation such as a battery shortage of a portable unit or a system failure. Further adding a portable unit for the bullet mode or dividing the portable unit itself further increases the number of keys to carry, which is inconvenient. In general, the number of keys or the like tends to be lost as the number of keys increases.

  In order to reduce the number of keys and the like even in a smart keyless system that can support the bullet mode, for example, a method in which an emergency mechanical key is also used as a bullet mode key can be considered. However, this method requires a key cylinder having a special latch mechanism that makes it impossible to unlock the trunk or the like only in the bullet mode, resulting in an increase in cost.

  Further, in the method of setting the bullet mode by an operation with a mechanical key or the like, the mode setting operation has to be performed, which is troublesome. In addition, if the owner forgets to set the bullet mode, the trunk or the like may be opened.

  Accordingly, an object of the present invention is to provide a smart keyless system for a vehicle that is excellent in convenience and security and can be adapted to a bullet mode.

  In order to achieve the above object, a first smart keyless system of the present invention includes an in-vehicle transmission unit that wirelessly transmits a request signal, a portable unit that wirelessly transmits an ID signal when the request signal is received, and a portable unit When the authentication of the ID signal received by the in-vehicle receiving means and the in-vehicle receiving means for receiving the ID signal is established, the portable unit and the in-vehicle operation switch A vehicle-mounted control unit that permits vehicle operation by at least one of the vehicle-mounted control unit, the portable unit transmits a state signal indicating the attachment / detachment state of the mechanical key together with the ID signal, and the vehicle-mounted control unit is a vehicle-mounted receiving unit. When the received status signal indicates the separated state of the mechanical key, at least one of the portable unit and the in-vehicle operation switch It is characterized by controlling the valet mode that limits the specific operation of the vehicle operation by.

According to the first smart keyless system of the present invention configured as described above, any operation without using the mechanical key on the vehicle side, that is, the portable unit and It is determined whether to perform normal mode control in which vehicle operation is permitted by at least one of the in-vehicle operation switches or to perform bullet mode control. For this reason, in the present invention, a new mechanical key or portable unit for bullet mode other than the emergency mechanical key and portable unit is unnecessary, and it is possible to cope with the bullet mode without increasing the number of keys and the like. As a result, it is possible to avoid a loss of convenience due to an increase in keys and the like. Further, it is possible to avoid an increase in the possibility of loss due to an increase in keys and the like.
The on-vehicle operation switch includes, for example, a request switch provided on the outer surface of the vehicle door, for example, in addition to a vehicle interior switch such as a centralized operation switch provided on a console beside the driver's seat.

Furthermore, according to the present invention, the bullet mode is automatically controlled on the vehicle side only by separating the mechanical key from the portable unit. For this reason, it is not necessary to perform a setting operation for setting the bullet mode, and forgetting to set the bullet mode can be prevented.
Thus, according to the present invention, it is possible to provide a system that is excellent in convenience and security.

Preferably, in the present invention, the portable unit includes: a holding unit that detachably holds the mechanical key; a portable side receiving unit that receives a request signal; a state detecting unit that detects the attachment / detachment state of the mechanical key; Mobile-side transmission means for wirelessly transmitting the ID signal and the status signal.
With such a configuration, the function of the portable unit of the present invention can be easily realized.

  By the way, in the present invention, as described above, the control mode in the vehicle is determined by the attachment / detachment state of the mechanical key. For this reason, if the bullet mode is switched to the normal mode by attaching another mechanical key to the portable unit, there is a security problem.

Therefore, in the present invention, preferably, the mechanical key has a transponder that transmits a key ID signal, and the portable unit performs authentication by comparing the key ID signal with the registered key ID signal, and authenticates the key ID signal. When is established, a state signal indicating that the mechanical key is in a mounted state is transmitted.
Thus, if the mechanical key is authenticated, it is not determined that the portable unit is attached even if another mechanical key is attached to the portable unit. In this case, a status signal indicating that the mechanical key is attached Will not be sent. For this reason, it is possible to prevent unauthorized release of the bullet mode and improve security.

  By the way, the smart keyless system portable unit may be provided with a switch for instructing operations such as door unlocking and trunk unlocking. For this reason, it is desirable to be able to cope with the bullet mode even when the vehicle is operated by such a switch.

Therefore, in the present invention, the portable unit preferably has a switch for instructing vehicle operation, and when the switch is operated, the operation instruction signal is wirelessly transmitted together with the ID signal and the status signal. When the state signal received by the receiving means indicates the separated state of the mechanical key and the operation indicated by the operation instruction signal is a specific operation, the operation is restricted.
Thus, the specific operation can be restricted on the vehicle side even when the vehicle operation is performed by the switch operation of the portable unit, instead of transmitting the ID signal or the like in response to the request signal.

  By the way, when the portable unit is handed over to a hotel valet parking staff, for example, if the remaining battery level of the portable unit is low, a situation in which the portable unit cannot be operated may occur. In this case, since the valet parking staff does not have an emergency mechanical key, it is impossible to perform any vehicle operation including door unlocking and engine starting.

Therefore, in the present invention, preferably, the portable unit has a predetermined remaining battery level when the remaining battery level detecting means for detecting the remaining battery level of the battery built in as the drive power source and the mechanical key are separated from the portable unit. Alarm means for issuing an alarm when the remaining amount is less than or equal to the remaining amount.
Thereby, after the mechanical key is separated, it is possible to prevent a situation in which the vehicle cannot be operated at all because the battery level of the portable unit is small.

In the present invention, preferably, the specific operation restricted in the control of the bullet mode by the in-vehicle control unit includes an operation of unlocking the storage compartment of the vehicle.
Thereby, it can prevent that a trunk, a glove box, etc. are opened in bullet mode, for example.

  By the way, for example, when lending a vehicle to a friend or sharing a vehicle with multiple people, even if only a portable unit separated from a mechanical key is passed to another person, it can be used in normal mode instead of bullet mode It may be convenient.

Therefore, in the present invention, preferably, the in-vehicle control unit is configured such that when a predetermined operation using the mechanical key is performed on the vehicle, the status signal received by the in-vehicle receiving unit indicates the separation state of the mechanical key. Even if it exists, the forced mode which permits specific operation is set.
As described above, if the forced mode is set by a predetermined operation, the specific operation can be performed even with the portable unit separated from the mechanical key, and the convenience can be improved.

By the way, in the case of non-specific operation, vehicle operation is permitted regardless of whether the mechanical key is attached or detached.
Therefore, in the present invention, preferably, when an operation on the vehicle is performed, the in-vehicle transmission unit transmits a request signal that differs at least for a specific operation and a non-specific operation among the vehicle operations. When the unit receives a request signal related to a specific operation, the unit transmits a status signal together with the ID signal. When the unit receives a request signal related to a non-specific operation signal, the unit transmits only the ID signal. When only the ID signal is received by the means and the authentication of the ID signal is established, the vehicle operation is permitted.
As a result, in the case of a non-specific operation, there is no need to transmit a status signal and determine its contents.

Preferably, in the present invention, the in-vehicle control unit has a storage unit for storing setting mode information, and sets a bullet mode for restricting a specific operation when the state signal indicates a separated state. When the state signal indicates the wearing state, a normal mode in which any vehicle operation by at least one of the portable unit and the in-vehicle operation switch is permitted is set, and information on the setting mode is held in the storage unit.
If the mode is set in this way, control corresponding to the bullet mode can be performed based on the setting mode information held in the storage unit without receiving a signal from the portable unit.

  Further, according to the second smart keyless system of the present invention, when the request switch provided in the vehicle, the in-vehicle transmission means for wirelessly transmitting the request signal when the request switch is operated, and the request signal are received, A portable unit that wirelessly transmits an ID signal, a mechanical key for vehicle operation that is detachably connected to the portable unit, an in-vehicle receiving unit that receives the ID signal, and authentication of the ID signal received by the in-vehicle receiving unit is established. A vehicle-mounted control unit that permits vehicle operation by at least one of the portable unit and the vehicle-mounted operation switch, and the request signal relates to at least a specific operation and a non-specific operation among vehicle operations. Unlike the mobile unit, the mobile unit has a mechanical key separated and the request signal is not Transmits the ID signal when it relates to constant operation, and is characterized in that the non-transmission of the ID signal when the request signal is intended for a particular operation.

  According to the second smart keyless system of the present invention configured as described above, the portable unit does not selectively transmit the ID signal when the mechanical key request signal relates to a specific operation. For this reason, specific operation is not permitted on the vehicle side. As a result, the same control as the control in the bullet mode can be performed without determining whether the mechanical key is attached or detached on the vehicle side.

  Thus, according to the smart keyless system of the present invention, it is possible to provide a smart keyless system for a vehicle that is excellent in convenience and security and is compatible with the bullet mode.

(First smart keyless system)
Hereinafter, an embodiment of a smart keyless system of the present invention will be described with reference to the accompanying drawings. First, the basic concept of the first smart keyless system of the present invention will be described with reference to FIG.

  A general smart keyless system basically includes a portable unit 1, a mechanical key 2 that is detachably attached to the portable unit 1, an in-vehicle control unit 30 that constitutes the in-vehicle system 3, an in-vehicle transmission unit 31, and an in-vehicle system. Receiving means 32. Then, the portable unit 1 wirelessly transmits an ID signal in response to the request signal wirelessly transmitted from the in-vehicle transmission means 31. On the other hand, the vehicle-mounted control unit 30 operates the vehicle without using a mechanical key, that is, the vehicle operation by at least one of the portable unit and the vehicle-mounted operation switch, according to the authentication result of the ID signal received by the vehicle-mounted receiving means 32. Permission / non-permission control is performed.

In such a smart entry system, in the present invention, the control mode in the in-vehicle system 3 is determined based on the attachment / detachment state of the portable unit 1 and the mechanical key 2 in order to cope with the bullet mode.
For example, when the vehicle owner performs a vehicle operation using the portable unit 1 with the mechanical key 2 attached, an attachment state signal indicating the attachment state is wirelessly transmitted from the portable unit 1 to the in-vehicle system 3 together with the ID signal. As a result, the in-vehicle control unit 30 controls the normal mode. In the normal mode, for example, the door locking / unlocking operation of the vehicle and the locking / unlocking operation of the trunk are permitted.

On the other hand, when the owner separates the mechanical key and passes only the portable unit to the hotel valet parking staff, a separation state signal indicating the separation state is transmitted from the portable unit 1 to the in-vehicle system 3 together with the ID signal. As a result, the in-vehicle control unit 30 controls the bullet mode. In the bullet mode, for example, door locking / unlocking operation is permitted, but trunk locking / unlocking operation is not permitted.
If a mechanical key is used, door locking / unlocking operation and trunk locking / unlocking operation can be performed regardless of the mode.

Next, a configuration example of a smart keyless system that realizes control corresponding to such a bullet mode will be described with reference to the block diagram of FIG.
As shown in FIG. 2, the mobile unit 1, the mechanical key 2, and the in-vehicle system 3 are largely configured. This mechanical key 2 is detachably attached to the portable unit 1. The portable unit 1 and the in-vehicle system 3 are configured to be able to communicate with each other by radio waves.

  The portable unit 1 has a card shape as shown in FIG. The size of the portable unit 1 is, for example, approximately L × W × thickness D = 83 mm × 50 mm × 5 mm with the mechanical key 2 attached. Therefore, the user can easily carry the card-shaped portable unit 1 with the portable key 2 attached in a pocket or bag. The mechanical key 2 is detachably attached to the portable unit 1.

  The portable unit 1 includes a portable control unit 10 that performs control in the portable unit 1. Furthermore, the portable unit 1 has each component 11-17, 50-52 shown in FIG. These components are connected to the portable control unit 10 so as to be able to exchange signals, except for the holding unit 11 described below. Hereinafter, these components will be described.

As described above, the mechanical key 2 is detachably attached to the portable unit 1. For this reason, the portable unit 1 is provided with a holding portion 11 for detachably holding the mechanical key 2. The locking member 11 as the holding portion 11 is shown in the exploded perspective view of the portable unit 1 in FIG.
As the holding portion 11, any suitable mechanism other than the locking member can be adopted.

  In the portable unit 1, the portable control unit 10 determines whether the mechanical key 2 is attached or detached. Therefore, the portable unit 1 is provided with an attachment / detachment state sensor 12 that detects the attachment / detachment state of the mechanical key 2. As the attachment / detachment state sensor 12, any suitable method can be adopted. For example, a method for detecting the presence or absence of electrical contact between the portable unit 1 and the mechanical key 2 can be mentioned.

  The portable unit 1 is also provided with a reader 13 for authenticating the attached mechanical key 2. The reader 13 sends an excitation signal to the transponder 20 built in the mechanical key 2, collates the key ID code sent from the transponder 20 with the registered key ID code registered in the portable control unit 10, Authenticate. This can prevent unauthorized release of the bullet mode due to attachment of a fake key.

  The mobile unit 1 is provided with a receiving antenna 14 that receives a request signal transmitted from the in-vehicle system 3. Further, a transmission antenna 15 that transmits an ID signal and a status signal to the in-vehicle system 3 is provided. An arrangement example of the receiving antenna 14 and the transmitting antenna 15 in the portable unit 1 is shown in an exploded perspective view of FIG.

  Further, the portable unit 1 is provided with a door switch (door SW) 16 for instructing locking / unlocking of the door. When the door switch 16 is pressed, an operation instruction signal for instructing locking / unlocking of the door is transmitted from the transmission antenna 15 together with the ID signal.

  The mobile unit 1 is provided with a trunk switch (trunk SW) 17 for instructing locking / unlocking of the trunk. When the trunk switch 17 is pressed, an operation instruction signal for instructing locking / unlocking of the trunk is transmitted from the transmission antenna 15 together with the ID signal.

  Further, the portable unit 1 incorporates a battery 50 such as a button-type battery as a driving power source. Then, when the mechanical key 2 is separated, the portable control unit 10 determines whether the remaining battery level is equal to or less than the predetermined remaining level. Therefore, the portable unit 1 is provided with a battery remaining amount sensor 51 that detects the remaining amount of the battery 50. When the remaining battery level is equal to or less than the predetermined remaining level, the buzzer 52 (see FIG. 3B) blows and issues an alarm according to an instruction from the portable control unit 10. As a result, the user can be made aware that the remaining battery level is low, and the portable unit 1 can be prevented from running out of battery after only the portable unit 1 is handed over to a hotel valet parking staff or the like. .

On the other hand, the in-vehicle system 3 includes an in-vehicle control unit 30 that performs control in the in-vehicle system. The in-vehicle control unit 30 permits the vehicle operation without using the mechanical key 2 in principle when the authentication of the ID signal received from the portable unit 1 is established. However, when the received status signal indicates the separated state of the mechanical key 2, the in-vehicle control unit 30 performs control in a bullet mode that restricts a specific operation among vehicle operations that do not use the mechanical key 2. .
The specific operation includes, for example, an operation of unlocking a storage compartment such as a vehicle trunk or a glove box.

  Further, the in-vehicle system 3 includes the components 31 to 49 shown in FIG. 2 connected to the in-vehicle control unit 30 in addition to the in-vehicle control unit 30 so as to be able to exchange signals. Hereinafter, each of these components will be described.

  In this embodiment, an indoor transmission antenna 31a and an outdoor transmission antenna 31b are provided as the in-vehicle transmitter 31 that transmits a request signal. And in order to receive the ID signal etc. which are transmitted from the portable unit 1 in response to a request signal, the receiving antenna 32 as the vehicle-mounted receiver 32 is provided.

  As shown in FIG. 4, the transmission antennas 31 (31a and 31b) are arranged in the vehicle so as to have different transmission areas. Then, the request signal is transmitted sequentially from each transmitting antenna 31 and the transmitting antenna to which the portable unit 1 responds is specified, whereby the location of the portable unit 1 (for example, whether in the vehicle compartment or outside the vehicle compartment). Identified.

  The in-vehicle system 3 also includes a central lock control switch (central lock control SW) 33. However, when the in-vehicle control unit 30 performs the control in the bullet mode, a specific operation such as unlocking the trunk is selectively restricted even if the operation is performed by a vehicle interior operation switch such as a central lock control switch. The

  The in-vehicle system 3 also includes a door request switch (door request SW) 34 that instructs door locking / unlocking. In the arrangement example shown in FIG. 4, the door request switch 34 is provided in the vicinity of the door knobs of the driver side and passenger side doors. When the door request switch 34 is operated, a request signal is transmitted from the transmission antenna 31.

  The in-vehicle system 3 also includes a door key cylinder 35. The door key cylinder 35 is an object of door locking / unlocking operation by the mechanical key 2. Furthermore, in this embodiment, the door key cylinder 35 is also set as a target for setting operation of the forced mode for canceling the bullet mode. As the setting operation of the forced mode, it is desirable to insert the mechanical key 2 into the door key cylinder 35 and perform an operation that is not normally performed. For example, an operation in which the mechanical key 2 inserted into the door key cylinder 35 is alternately rotated a predetermined number of times to the left and right, and an operation in which the state in which the mechanical key 2 is rotated are continued for a certain period of time are desirable. In addition, it is desirable to cancel the setting of the forced mode by performing the same operation as the setting operation of the forced mode again.

  When the forced mode setting operation is performed, the mode setting information is stored in a storage unit such as a RAM of the in-vehicle control unit 30. As a result, the in-vehicle control unit 30 permits a specific operation regardless of whether the mechanical key is attached or detached.

  The in-vehicle system 3 also includes a door lock actuator 36. In the arrangement example shown in FIG. 4, the door lock actuator 36 is provided for each door. The door lock actuator 36 is actuated when the door locking / unlocking operation is permitted by the in-vehicle control unit 30 to lock / unlock the door.

The in-vehicle system 3 also includes a trunk request switch (trunk request SW) 37 for instructing trunk locking / unlocking. When the trunk request switch 37 is pressed, a request signal is transmitted from the transmission antenna 31. When the trunk locking / unlocking operation is a specific operation and the portable unit 1 and the mechanical key 2 are in the separated state, the in-vehicle control unit 30 sets the trunk locking / unlocking operation as the bullet mode. Is limited.
Since the vehicle shown in FIG. 4 is a hatchback type, the trunk request switch 37 is not shown in FIG.

  The in-vehicle system 3 also includes a trunk key cylinder 38. The trunk key cylinder 38 is a target of trunk locking / unlocking operation by the mechanical key 2. Furthermore, in the present embodiment, the trunk key cylinder 38 is also set as a target for the forced mode setting operation for releasing the bullet mode. As the setting operation of the forced mode, it is desirable to insert the mechanical key 2 into the trunk key cylinder 38 and perform an operation that is not normally performed. For example, an operation in which the mechanical key 2 inserted into the trunk key cylinder 38 is alternately rotated a predetermined number of times to the left and right, or an operation in which the state in which the mechanical key 2 is rotated is continued for a predetermined time is desirable. In addition, it is desirable to cancel the setting of the forced mode by performing the same operation as the setting operation of the forced mode again.

  When the mechanical key 2 is inserted into the trunk key cylinder 38 and the trunk unlocking operation is performed, even if the on-board control unit 30 is controlling the bullet mode, the trunk which is the specific operation Can be unlocked.

The in-vehicle system 3 also includes a trunk clock actuator 39. The trunk lock actuator 39 operates when the door locking / unlocking operation is permitted by the in-vehicle control unit 30, and locks / unlocks the trunk.
Since the vehicle shown in FIG. 4 is of a hatchback type, the trunk lock actuator is not shown in FIG.

  The in-vehicle system 3 also includes an ignition knob 40. When the vehicle-mounted control unit 10 permits, the ignition knob 40 can be turned from the position of the lock (LOCK) to the position of the accessory (ACC) and further to the ignition (IG). The in-vehicle system 3 also includes an ignition switch (ignition SW) 41. When the push button type ignition switch 41 is pressed, the engine starts with the permission of the in-vehicle control unit 10. The in-vehicle system 3 also includes an engine control unit 42. When the in-vehicle control unit 10 permits, the engine is controlled by the engine control unit 42.

  The in-vehicle system 3 also includes an engine speed sensor (Eng speed sensor) 43. When the engine speed sensor 43 detects that the engine is rotating, the in-vehicle control unit 10 can for example prohibit the operation of starting the engine. Further, the in-vehicle system 3 includes a vehicle speed sensor 44, a door open sensor 45 that detects the open / close state of the door, and a door lock sensor 46 that detects the locked / unlocked state of the door. The detection results by these sensors are sent to the vehicle-mounted control unit 30, respectively.

  In-vehicle system 3 also includes a meter unit 47. The meter unit 47 is provided on the instrument panel in front of the driver's seat in the passenger compartment. The meter unit 47 is provided with an engine speed meter that displays the engine speed detected by the engine speed sensor 43 and a vehicle speed meter that displays the vehicle speed detected by the vehicle speed sensor 44. Further, the meter unit 47 is also provided with an alarm lamp and an in-vehicle buzzer that are operated according to an instruction from the in-vehicle control unit 30. The in-vehicle system 3 also includes an out-of-vehicle buzzer 48 for issuing a warning to the user. The outside buzzer 48 is sounded, for example, when the portable unit 1 is taken out of the passenger compartment while the engine is rotating.

Next, a control processing example of the smart keyless system of the present invention will be described with reference to a flowchart.
In the following control processing example, the trunk locking / locking operation is a specific operation restricted in the bullet mode, and other vehicle operations such as door locking / unlocking operation, engine start operation, etc. are non-specific operations. The case will be described.

(First control processing example)
First, a first control processing example will be described with reference to FIGS. 5 and 6. FIG. 5 is a flowchart showing a control process by the in-vehicle control unit 30, and FIG. 6 is a flowchart showing a control process by the portable control unit 10.

  When a predetermined operation not performed by the mechanical key 2 is performed on the vehicle side (step SA1 in FIG. 5), the in-vehicle control unit 30 starts from the in-vehicle transmission means 31 (the in-vehicle transmission antenna 31a and the out-of-vehicle transmission antenna 31b). The request signal is transmitted wirelessly (step SA2 in FIG. 5).

  Here, the predetermined operation means, for example, that the door request switch 34 is pressed to perform locking / unlocking operation of the door, or the trunk request switch 37 is pressed to perform locking / unlocking operation of the trunk. An operation.

  Note that any suitable condition can be set as the predetermined operation for transmitting the request signal. For example, when performing permission / non-permission control for door locking / unlocking operation and trunk locking / unlocking operation, the engine speed detected by the engine speed sensor 43 is zero in consideration of safety. It is desirable that the engine is stopped.

  And the portable side control unit 10 will judge the attachment / detachment state of the mechanical key 2 based on the detection result of the attachment / detachment state sensor 12 (FIG. 6), if a request signal is received by the receiving antenna 14 (step SB1 of FIG. 6). Step SB2).

  Further, when the attachment / detachment state detection is performed by the attachment / detachment state sensor 12, it is desirable that the reader 13 of the portable unit 1 authenticates the key ID code received from the transponder of the mechanical key 2 attached. Thereby, even if a fake mechanical key is attached to the portable unit 1, it can be prevented from being erroneously recognized as an attached state.

  Here, the case where the mechanical key 2 is in the mounted state is assumed, for example, when the owner of the vehicle carries the portable unit 1. The case where the mechanical key 2 is in the separated state is assumed, for example, when a valet parking staff or a mechanic at an automobile repair shop is only handing the portable unit 1 from the owner.

  Moreover, the detection of the attachment / detachment state by the attachment / detachment state sensor 12 may be performed periodically regardless of reception of the request signal, or may be performed each time the request signal is received. The detection result is preferably temporarily stored in a storage unit such as a RAM in the portable control unit 10.

  When the mechanical key 2 is in the wearing state, the portable control unit 10 wirelessly transmits a state signal (wearing state signal) indicating the wearing state together with the ID signal of the portable unit 1 from the transmission antenna 15 (step in FIG. 6). SB3).

On the other hand, when the mechanical key 2 is in the separated state, the portable control unit 10 wirelessly transmits a state signal indicating the separated state (separated state signal) from the transmission antenna 15 together with the ID signal (step SB4 in FIG. 6). .
Here, as an example of the state signal indicating the attachment state or the separation state, there is a flag code indicating the attachment / detachment state by a bit signal of “1” or “0” added to the ID code of the ID signal.

  When the in-vehicle control unit 30 receives the ID signal and the status signal from the portable control unit 10 within a predetermined time (step SA3 in FIG. 5), the in-vehicle control unit 30 collates the ID signal (step SA4 in FIG. 5) and authenticates. Is determined (step SA5 in FIG. 5).

  When collating the ID signal, the registration ID code registered as the ID code of the portable unit 1 in the ROM or the like in the in-vehicle control unit 30 is collated with the ID code of the received ID signal. If these codes match, authentication is assumed to be established. If authentication is not established, vehicle operation is not permitted (step SA9 in FIG. 5).

  On the other hand, when the authentication is established, the in-vehicle control unit 30 determines whether or not the requested vehicle operation is a specific operation (step SA6 in FIG. 5).

If the vehicle operation is a non-specific operation, the in-vehicle control unit 30 permits the vehicle operation (step SA7 in FIG. 5).
Therefore, for example, the door locking / unlocking operation requested by the door request switch is permitted.

  On the other hand, when the vehicle operation is a specific operation, for example, when the trunk request switch is pressed or when the trunk unlocking button is pressed by the vehicle interior operation switch, the in-vehicle control unit 30 attaches a status signal. It is determined whether it indicates a state or a separated state (step SA8 in FIG. 5).

If the status signal indicates the wearing state, the in-vehicle control unit 30 permits the vehicle operation (step SA7 in FIG. 5).
Therefore, in this case, normal mode control is performed, and trunk locking / unlocking operations are permitted.

On the other hand, when the status signal indicates the separated state, the in-vehicle control unit 30 determines whether or not the forced mode is set (step SA9 in FIG. 5).
The forced mode is an operation that is not normally performed, for example, the mechanical key 2 is inserted into the door key cylinder 35 or the trunk key cylinder 38 and locked (IG off) within a predetermined time (for example, within 3 seconds). It is desirable to set by performing a predetermined operation, such as switching six times between and unlock (IG on). Furthermore, when the same operation as the forced mode setting operation is performed again in the forced mode, it is desirable to cancel the setting of the forced mode. Further, information on setting / non-setting of the forced mode is stored in a RAM or the like in the in-vehicle control unit 30.

When the forced mode is set, the in-vehicle control unit 30 permits the operation without restricting the specific operation even if the state signal indicates the separated state (step SA7 in FIG. 5).
Therefore, in this case, forced mode control is performed and trunk locking / unlocking operation is permitted.

On the other hand, when the forced mode is not set, the in-vehicle control unit 30 restricts the specific operation.
Therefore, in this case, control in the bullet mode is performed, and trunk locking / unlocking operation is restricted (step SA10 in FIG. 5).
By performing such control processing, it is possible to operate a smart keyless system that can support the bullet mode.

  Further, in the above-described first control processing example, the ID signal and the status signal are transmitted from the portable unit 1 as a response to the request signal. However, the portable unit 1 can also be used when the mechanical key 2 is attached or detached. An ID signal and a status signal may be transmitted.

  Further, when the mechanical key 2 is separated from the portable unit 1, it is desirable to detect the remaining battery level of the built-in battery 50 by the remaining battery level sensor 51. And when a battery remaining charge is below a predetermined level, it is good to sound the buzzer 52 of the portable unit 1, for example. As a result, it is possible to prevent a situation in which the portable unit 1 separated from the emergency mechanical key 2 cannot be operated due to running out of batteries.

  And in the vehicle-mounted control unit 30, whenever it receives ID signal and a status signal, it is good to set the control mode according to the attachment / detachment state which a status signal shows. That is, when the status signal indicates the separated state, the bullet mode is set. On the other hand, when the status signal indicates the wearing state, the normal mode is set. And the information of setting mode is hold | maintained at memory | storage parts (not shown), such as RAM in the vehicle-mounted control unit 30, and is updated to the newest thing whenever a status signal is received.

  In this way, when an in-vehicle operation is performed, the in-vehicle control unit 30 reads the setting mode held in the storage unit of the in-vehicle control unit 30 without transmitting / receiving a signal to / from the portable unit 1. The setting mode can be controlled. For example, when the bullet mode is set, the trunk is not locked / unlocked even when the central door lock switch is operated.

(Second control processing example)
Next, a second control processing example will be described with reference to FIGS. 5 and 7. FIG. 7 is a flowchart showing a control process by the portable control unit 10. In the second control process example, the request process is not transmitted from the in-vehicle system 3, but the control process is started by operating the operation switch provided in the portable unit 1.

Hereinafter, the flow of control processing will be described in order.
When a switch for instructing vehicle operation provided in the portable unit 1 is operated (SB1 in FIG. 7), the portable control unit 10 attaches / detaches the mechanical key 2 based on the detection result of the attachment / detachment state sensor 12. The state is determined (step SB2 in FIG. 7).
Here, the vehicle operation instruction switch refers to, for example, a door locking / unlocking switch 16 or a trunk locking / unlocking switch 17 provided in the portable unit 1.

  When the mechanical key 2 is in the wearing state, the portable control unit 10 wirelessly transmits a state signal (wearing state signal) indicating the wearing state and an operation instruction signal together with the ID signal from the transmission antenna 15 (FIG. 7). Step SB3).

On the other hand, when the mechanical key 2 is in the separated state, the portable control unit 10 wirelessly transmits a state signal indicating the separated state (separated state signal) and an operation instruction signal together with the ID signal from the transmission antenna 15 (FIG. 7 step SB4).
Here, as the operation instruction signal, for example, when the door locking / unlocking switch 16 is operated, an operation code for door locking / unlocking is transmitted, and the trunk locking / unlocking switch 17 is operated. If this happens, send the trunk lock / unlock operation code.

  And the control process in the vehicle-mounted control unit 30 is substantially the same as the process after the reception process (step SA3 in FIG. 5) such as an ID signal in the first control process example shown in FIG.

  However, in the first control processing example, the process (step SA6 in FIG. 5) on whether or not the vehicle operation is a specific operation can be determined based on the type of request switch or the like on the vehicle side. The second control processing example is different in that a determination is made based on an operation instruction signal from the portable unit 1.

  When the in-vehicle control unit 30 receives the ID signal and the status signal from the portable control unit 10 (step SA3 in FIG. 5), first, as in the first control processing example, the ID signal is collated ( Step SA4 in FIG. 5 determines whether or not the authentication is successful (step SA5 in FIG. 5). If authentication is not established, vehicle operation is not permitted (step SA10 in FIG. 5).

  On the other hand, when the authentication is established, the in-vehicle control unit 30 determines whether or not the operation indicated by the vehicle operation instruction signal is a specific operation (step SA6 in FIG. 5).

If the vehicle operation is a non-specific operation, the in-vehicle control unit 30 permits the vehicle operation (step SA7 in FIG. 5).
Therefore, for example, when the door locking / unlocking switch of the mobile unit 1 is operated, the door locking / unlocking operation is permitted.

  On the other hand, when the vehicle operation instructed by the vehicle operation instruction signal is a specific operation, for example, when the trunk locking / unlocking switch is operated, the in-vehicle control unit 30 determines whether the status signal indicates the mounting state or not. It is determined whether it indicates a state (step SA8 in FIG. 5).

If the status signal indicates the wearing state, the in-vehicle control unit 30 permits the vehicle operation (step SA7 in FIG. 5).
Therefore, in this case, control in the normal mode is performed, and trunk locking / unlocking operation by the trunk locking / unlocking switch of the portable unit 1 is permitted.

  On the other hand, when the status signal indicates the separated state, the in-vehicle control unit 30 determines whether the forced mode is set (step SA8 in FIG. 5).

When the forced mode is set, the in-vehicle control unit 30 permits the operation without restricting the specific operation even if the state signal indicates the separated state (step SA7 in FIG. 5).
Therefore, in this case, the forced mode control is performed, and the trunk locking / unlocking operation by the trunk locking / unlocking switch of the portable unit 1 is permitted.

On the other hand, when the forced mode is not set, the in-vehicle control unit 30 restricts the specific operation.
Therefore, in this case, control of the bullet mode is performed, and the trunk locking / unlocking operation by the trunk locking / unlocking switch of the portable unit 1 is restricted.

  Thus, in the second control processing example, instead of transmitting an ID signal or the like in response to the request signal, control corresponding to the bullet mode is performed even when the vehicle operation is performed by the switch operation of the portable unit 1. be able to.

(Third control processing example)
Next, a third control processing example will be described with reference to FIGS. 8 and 9. The flowchart in FIG. 8 shows the control process by the in-vehicle control unit 30, and the flowchart in FIG. 9 shows the control process by the portable control unit 10. In the third control processing example, a different request signal is transmitted from the in-vehicle system 3 depending on whether or not the vehicle operation is a specific operation. The portable unit 1 transmits a status signal only in the case of a request signal related to a specific operation, and transmits only an ID signal in the case of a request signal related to a non-specific signal.

Hereinafter, the flow of control processing will be described in order.
When a predetermined operation not using the mechanical key 2 is performed on the vehicle side (step SA1 in FIG. 8), the in-vehicle control unit 30 determines whether or not the vehicle operation instructed by the predetermined operation is a specific operation. (Step SA2 in FIG. 8).

  Here, the predetermined operation means, for example, that the door request switch 34 is pressed to perform locking / unlocking operation of the door, or the trunk request switch 37 is pressed to perform locking / unlocking operation of the trunk. It refers to an operation, an operation of rotating an ignition knob to unlock the steering lock, or an ignition starter operation for starting the engine. It should be noted that it is desirable to set various conditions as necessary for the rotation operation of the ignition knob and the ignition starter operation, such as collation by a transponder.

  When the predetermined operation is related to a non-specific operation, the in-vehicle control unit 30 wirelessly transmits the first request signal (step SA3 in FIG. 8).

  Then, when the portable control unit 10 receives the request signal (step SB1 in FIG. 9), whether the received request signal is the first request signal or the second request signal, that is, the request signal is a non-specific operation. Or whether it is related to a specific operation (step SB2 in FIG. 9).

  When the received request signal is the first request signal, the portable control unit 10 transmits only the ID signal (step SB3 in FIG. 9). In this case, the attachment / detachment state of the mechanical key 2 is not determined, and the state signal is not transmitted.

  Then, the in-vehicle control unit 30 receives the ID signal from the portable control unit 10 within a predetermined time after transmitting the first request signal, that is, when only the ID signal is received (step SA4 in FIG. 8), the ID Signal verification is performed (step SA5 in FIG. 8), and the success or failure of the authentication is determined (step SA6 in FIG. 8). As a result, if the authentication is not established, the vehicle operation is not permitted (step SA14 in FIG. 8).

  On the other hand, when the authentication is established, the in-vehicle control unit 30 permits the requested vehicle operation (step SA7 in FIG. 8).

  On the other hand, when it is determined in step SA2 in FIG. 8 that the predetermined operation is related to the specific operation, the in-vehicle control unit 30 transmits a second request signal (step SA8 in FIG. 8).

  When the portable control unit 10 determines whether the request signal is the first request signal or the second request signal as a result of determining whether the request signal is the second request signal, the portable control unit 10 Whether the expression key 2 is attached or detached is determined (step SB4 in FIG. 9).

  When the mechanical key 2 is in the attached state, the portable control unit 10 transmits a state signal (attached state signal) indicating the attached state together with the ID signal of the portable unit 1 (step SB5 in FIG. 9).

  On the other hand, when the mechanical key 2 is in the separated state, the portable control unit 10 transmits a state signal (separated state signal) indicating the separated state together with the ID signal (step SB6 in FIG. 9).

  Then, when the in-vehicle control unit 30 receives the ID signal and the status signal from the portable control unit 10 within a predetermined time after transmitting the second request signal (step SA9 in FIG. 8), the in-vehicle control unit 30 collates the ID signal (FIG. 8). Step SA10 in FIG. 8), it is determined whether or not the authentication is successful (Step SA11 in FIG. 8).

  As a result, when the authentication is not established, the vehicle operation is not permitted (step SA14 in FIG. 8).

On the other hand, when the authentication is established, the in-vehicle control unit 30 determines whether the state signal indicates the mounting state or the separation state (step SA12 in FIG. 8).
In the third control processing example, since it is already determined whether the vehicle operation is a specific operation at the stage of transmitting the request signal, the attachment / detachment state is subsequently determined after the authentication of the ID signal.

As a result, when the state signal indicates the wearing state, the in-vehicle control unit 30 permits the vehicle operation (step SA7 in FIG. 8).
Therefore, in this case, normal mode control is performed, and trunk locking / unlocking operations are permitted.

  On the other hand, when the status signal indicates the separated state, the in-vehicle control unit 30 determines whether or not the forced mode is set (step SA13 in FIG. 8).

When the forced mode is set, the in-vehicle control unit 30 permits the operation without restricting the specific operation even if the state signal indicates the separated state (step SA7 in FIG. 8).
Therefore, in this case, forced mode control is performed and trunk locking / unlocking operation is permitted.

On the other hand, when the forced mode is not set, the in-vehicle control unit 30 restricts the specific operation (step SA14 in FIG. 8).
Therefore, in this case, control in the bullet mode is performed, and trunk locking / unlocking operations are restricted.

(Second smart keyless system)
Next, the basic concept of the second smart keyless system of the present invention will be described with reference to FIG.
As shown in FIG. 10, in the smart entry system according to the present invention, the control mode in the in-vehicle system 3 is determined based on the attachment / detachment state of the portable unit 1 and the mechanical key 2 in order to further support the bullet mode. .

  Therefore, the in-vehicle system 3 transmits a first request signal for a non-specific operation among vehicle operations, and transmits a second request signal for a specific operation among vehicle operations. For example, when the owner of the vehicle operates the vehicle with the portable unit 1 with the mechanical key 2 attached, an ID signal is received from the portable unit 1 for both the first request signal and the second request signal. Sent. As a result, the in-vehicle control unit 30 controls the normal mode. Further, for example, the door locking / unlocking operation of the vehicle and the locking / unlocking operation of the trunk are permitted.

On the other hand, for example, when the owner separates the mechanical key and passes only the portable unit to the hotel valet parking staff, the ID signal is transmitted from the portable unit 1 only for the first request signal, and the second request The ID signal is not transmitted for the signal. As a result, in the in-vehicle control unit 30, the specific operation is not permitted when the mechanical key 2 is separated. Therefore, in the vehicle-mounted control unit 30, as a result, the same control as the control in the bullet mode is performed. For example, when the mechanical key 2 is in the separated state, the door locking / unlocking operation of the non-specific operation is permitted, but the trunk locking / unlocking operation of the specific operation is not permitted.
Regardless of the mode, if a mechanical key is used, a specific operation and a non-specific operation can be performed.

  The configuration of the second smart keyless system that realizes control corresponding to such a bullet mode is basically the same as the configuration of the first smart keyless system shown in FIG. However, as will be described below, the control processing in the in-vehicle control unit 30 and the portable control unit 10 is different from the case of the first smart keyless system described above.

Next, with reference to FIGS. 11 and 12, an example of control processing of the second smart keyless system of the present invention will be described. FIG. 11 is a flowchart showing a control process by the in-vehicle control unit 30, and FIG. 12 is a flowchart showing a control process by the portable control unit 10.
In the following control processing example, the trunk locking / locking operation is a specific operation restricted in the bullet mode, and other vehicle operations such as door locking / unlocking operation, engine start operation, etc. are non-specific operations. And

  When a predetermined operation not using the mechanical key 2 is performed on the vehicle side (step SA1 in FIG. 11), the in-vehicle control unit 30 determines whether or not the vehicle operation instructed by the predetermined operation is a specific operation ( Step SA2 in FIG.

  As a result of the determination, when the predetermined operation relates to a non-specific operation, for example, when the door request switch 34 is pressed for door locking / unlocking operation, the in-vehicle control unit 30 transmits the in-vehicle transmission unit 31 (in-vehicle interior The first request signal is wirelessly transmitted from the transmission antenna 31a and the vehicle interior transmission antenna 31b) (step SA3 in FIG. 11).

  On the other hand, when the predetermined operation relates to a specific operation, for example, when the trunk request switch 37 is pressed for trunk locking / unlocking operation, the in-vehicle control unit 30 wirelessly transmits the second request signal (FIG. 11 step SA4).

  When the portable control unit 10 receives the request signal (step SB1 in FIG. 12), whether the received request signal is the first request signal or the second request signal, that is, the request signal is a non-specific operation. Or whether it is related to a specific operation (step SB2 in FIG. 12).

  If the received request signal is the first request signal, the portable control unit 10 transmits an ID signal (step SB3 in FIG. 12).

  On the other hand, when the received request signal is the second request signal, the portable control unit 10 determines whether the mechanical key 2 is attached or detached (step SB4 in FIG. 12).

  When the mechanical key 2 is in the mounted state, the portable side control unit 10 transmits the ID signal of the portable unit 1 (step SB3 in FIG. 12).

  On the other hand, when the mechanical key 2 is in the separated state, the portable control unit 10 does not transmit the ID signal.

  Then, when the in-vehicle control unit 30 receives an ID signal from the portable control unit 10 within a predetermined time after transmitting the request signal (step SA5 in FIG. 11), the in-vehicle control unit 30 collates the ID signal (step SA6 in FIG. 11). Then, the success or failure of the authentication is determined (step SA7 in FIG. 11). As a result, when authentication is established, vehicle operation is permitted (step SA8 in FIG. 11). On the other hand, if the authentication is not established, the vehicle operation is not permitted (step SA9 in FIG. 11).

  In this way, in the second smart keyless system, receiving the ID signal in response to the request signal, that is, in principle, means the normal mode, so the in-vehicle control unit 30 needs to determine the attachment / detachment state. Absent.

  Thus, according to the second smart keyless system, the ID signal is not transmitted from the portable unit 1 separated from the mechanical key 2 in response to the request signal for the specific operation to be restricted. Therefore, as a result, the bullet mode can be controlled without determining the attachment / detachment state on the in-vehicle control unit 30 side.

  In each embodiment mentioned above, although the example which constituted the present invention on specific conditions was explained, the present invention can perform various change and combination, and is not limited to this. For example, the order of each determination process after receiving an ID signal or the like in the in-vehicle control unit is not limited to that shown in each flowchart. For example, in the control flow described above, it is determined whether or not the vehicle operation is a specific operation, and then it is determined whether the attachment / detachment signal is an attachment state signal or a separation state signal. It may be determined whether or not.

  Further, in the control processing example in the above-described embodiment, the presence or absence of the setting of the forced mode is determined by the in-vehicle control unit, but the forced mode can be omitted.

  In the above-described embodiment, the example in which the trunk locking / unlocking operation is the specific operation has been described. However, in the present invention, the specific operation is not limited to this, and any operation on the vehicle is the specific operation. Can do.

  Moreover, although the above-mentioned embodiment demonstrated the example which used the portable unit as the card | curd shape, the shape and dimension of a portable unit are not limited.

It is a schematic diagram which shows the basic concept of the 1st smart keyless system of this invention. It is a block diagram which shows the structure of the 1st smart keyless system of this invention in embodiment. (A) is a perspective view which shows the external appearance of the portable unit which mounted | wore with the mechanical key in embodiment of the 1st smart keyless system of this invention, (B) is an external appearance of the portable unit which isolate | separated the mechanical key. FIG. It is a figure which shows the arrangement configuration in the vehicle of the smart keyless system in embodiment of the 1st smart keyless system of this invention. It is a flowchart of the control processing of the vehicle-mounted control unit in the 1st control processing example of the 1st smart keyless system of this invention. It is a flowchart of the control processing of the portable side control unit in the 1st control processing example of the 1st smart keyless system of this invention. It is a flowchart of the control processing of the portable side control unit in the 2nd control processing example of the 1st smart keyless system of this invention. It is a flowchart of the control processing of the vehicle-mounted control unit in the 3rd control processing example of the 1st smart keyless system of this invention. It is a flowchart of the control processing of the portable side control unit in the 3rd control processing example of the 1st smart keyless system of this invention. It is a schematic diagram which shows the basic concept of the 2nd smart keyless system of this invention. It is a flowchart of the control processing of the vehicle-mounted control unit in the control processing example of the 2nd smart keyless system of this invention. It is a flowchart of the control processing of the portable side control unit in the control processing example of the 2nd smart keyless system of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable unit 2 Mechanical key 3 In-vehicle system 10 Portable side control unit 11 Holding means 12 Portable side receiving means (receiving antenna)
13 State detection means (detachment state sensor)
14 Mobile transmission means (transmitting antenna)
15 Leader 16 Door switch 17 Trunk switch 20 Transponder 30 In-vehicle control unit 31 In-vehicle transmission means (transmission antenna)
32 On-vehicle receiving means (receiving antenna)
33 Central lock control switch (Central lock control SW)
34 Door Request Switch 35 Door Key Cylinder 36 Door Lock Actuator 37 Trunk Request Switch 38 Trunk Key Cylinder 39 Trunk Lock Actuator 40 Ignition Knob 41 Ignition Switch 42 Reader 43 Engine Control Unit 44 Engine Speed Sensor 45 Vehicle Speed Sensor 46 Door Open Sensor 47 Door Lock Sensor 48 Meter unit 50 Battery 51 Battery level sensor 52 Buzzer

Claims (10)

Vehicle-mounted transmission means for wirelessly transmitting a request signal;
A portable unit that wirelessly transmits an ID signal when the request signal is received;
A mechanical key for vehicle operation, which is detachably attached to the portable unit;
Vehicle-mounted receiving means for receiving the ID signal;
A vehicle-mounted control unit that permits vehicle operation by at least one of the mobile unit and the vehicle-mounted operation switch when authentication of the ID signal received by the vehicle-mounted receiving means is established;
The portable unit transmits a state signal indicating the attachment / detachment state of the mechanical key together with the ID signal,
When the status signal received by the in-vehicle receiving means indicates the separated state of the mechanical key, the in-vehicle control unit performs a specific operation among vehicle operations by at least one of the portable unit and the in-vehicle operation switch. A smart keyless system that controls the limited bullet mode. The mobile unit is
Holding means for detachably holding the mechanical key;
Mobile-side receiving means for receiving the request signal;
State detecting means for detecting the attachment / detachment state of the mechanical key;
Mobile-side transmission means for wirelessly transmitting the ID signal and status signal;
The smart keyless system according to claim 1, further comprising: The mechanical key has a transponder that transmits a key ID signal,
The portable unit performs authentication by comparing the key ID signal with a registered key ID signal, and transmits a status signal indicating that the mechanical key is in a mounted state when authentication of the key ID signal is established. The smart keyless system according to claim 1 or 2, characterized in that: The portable unit includes a switch for instructing a vehicle operation, and when the switch is operated, the operation instruction signal is wirelessly transmitted together with the ID signal and the state signal.
The control unit operates when the status signal received by the in-vehicle receiving means indicates the separated state of the mechanical key and the operation indicated by the operation instruction signal is the specific operation. The smart keyless system according to any one of claims 1 to 3, wherein the smart keyless system is limited. The mobile unit is
Battery remaining amount detecting means for detecting the remaining amount of the battery built in as a driving power source,
When the mechanical key is separated from the portable unit, an alarm means for issuing an alarm if the remaining battery level is less than or equal to a predetermined remaining level; and
The smart keyless system according to claim 1, further comprising:   The said specific operation restricted in control of the said bullet mode by the said vehicle-mounted control unit includes the operation which unlocks the storage compartment of a vehicle, The Claim 1 characterized by the above-mentioned. Smart keyless system.   The vehicle-mounted control unit may be configured such that when a predetermined operation using the mechanical key is performed on the vehicle, the state signal received by the vehicle-mounted receiving means indicates the separated state of the mechanical key. The smart keyless system according to any one of claims 1 to 6, wherein a forced mode that allows the specific operation is set. The vehicle-mounted transmission means transmits a request signal that differs depending on at least a specific operation and a non-specific operation among vehicle operations when an operation on the vehicle is performed,
The portable unit transmits the status signal together with the ID signal when receiving the request signal related to the specific operation, and transmits only the ID signal when receiving the request signal related to the non-specific operation signal.
8. The vehicle-mounted control unit according to claim 1, wherein, when only the ID signal is received, the vehicle operation is permitted when the authentication of the ID signal is established. Smart keyless system. The vehicle-mounted control unit has a storage unit that stores information on the setting mode,
When the state signal indicates a separation state, set a bullet mode that restricts the specific operation,
When the state signal indicates a wearing state, a normal mode in which any vehicle operation by at least one of the portable unit and the on-vehicle operation switch is permitted is set, and information on the setting mode is stored in the storage unit. The smart keyless system according to any one of claims 1 to 8, wherein the smart keyless system is held. A request switch provided on the vehicle;
On-vehicle transmission means for wirelessly transmitting a request signal when the request switch is operated,
A portable unit that wirelessly transmits an ID signal when the request signal is received;
A mechanical key for vehicle operation that is detachably connected to the portable unit;
Vehicle-mounted receiving means for receiving the ID signal;
A vehicle-mounted control unit that permits vehicle operation by at least one of the mobile unit and the vehicle-mounted operation switch when authentication of the ID signal received by the vehicle-mounted receiving means is established;
The request signal is different at least for a specific operation and a non-specific operation among vehicle operations,
The portable unit transmits the ID signal when the mechanical key is separated and the request signal relates to the non-specific operation, and the request signal relates to the specific operation. A smart keyless system characterized in that the ID signal is not transmitted when it is a device.

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