JP4867706B2 - Smart keyless device for vehicle - Google Patents

Description

  The present invention relates to a lock / unlock control means for performing lock / unlock control of a vehicle door when an identification code of an in-vehicle device mounted on a vehicle matches an identification code of a portable device carried by an occupant, and an engine The present invention relates to a smart keyless device for a vehicle provided with start control means for performing start control.

  In recent years, smart keyless systems have been put into practical use. In the smart keyless system, the portable device plays the role of a conventional mechanical key. For example, if a card-like portable device is carried in a pocket or bag, operations such as door locking / unlocking and engine starting can be performed without taking out and operating the keys (Patent Literature). 1).

  In order to realize such a function, the portable device incorporates a transmission antenna that transmits a dedicated identification code in accordance with a radio signal transmitted from the radio signal transmitting antenna on the in-vehicle device side. On the in-vehicle device side, a smart keyless control unit that permits operations such as locking / unlocking the door when the identification code received from the portable device matches the identification code of the in-vehicle device is mounted.

  In such a smart keyless system, the portable device can be taken out of the vehicle even when the engine is operating. Therefore, when the portable device is taken out of the vehicle, the door is locked or unlocked next time. Even if control or engine restart is attempted, a situation may occur in which the portable device is not available because it is not at hand.

  Therefore, when the portable device is taken out of the vehicle in a predetermined operating state of the engine starting means (meaning any one of accessory ON, ignition ON, and ignition START), it is necessary to inform the take-out person etc. There is. In order to realize this, it has been proposed to include a warning means for giving a predetermined warning to a take-out person or the like when the portable device is taken out of the vehicle while the engine starting means is in operation.

  However, even if the engine starting means is in an operating state, there is a case where the user can intentionally get out of the vehicle while holding the portable device because it is an operation that can be returned to the vehicle again. The alarm means performs its original function when the mobile device is inadvertently taken out, but it also works for intentional take-out as described above, which sometimes causes trouble for the take-out person and the like. There was a problem that.

  Therefore, in recent years, there has been proposed a system in which the alarm can be limited (cancelled) by an appropriate operation of an operator (taker) (see Patent Document 2).

JP 2002-194937 A JP 2003-314107 A

  However, in the above-mentioned Patent Document 2, it is disclosed that a dedicated operation unit for performing alarm restriction is provided, and in this case, a new operation unit is separately required.

  An object of the present invention is to provide a smart keyless device for a vehicle that can limit an alarm when a portable device is taken out as required by operation of an existing operation means.

  The smart keyless device for a vehicle according to the present invention is a lock / unlock that performs lock / unlock control of a vehicle door when an identification code of an in-vehicle device mounted on the vehicle matches an identification code of a portable device carried by a passenger. A smart keyless device for a vehicle provided with a control means and a start control means for performing start control of the engine, the alarm means for giving an alarm when the engine start means is in operation and the portable device is taken out of the vehicle, and A smart keyless operating means whose operation is invalidated when the engine starting means is in an operating state, and an alarm limiting means for limiting the alarm of the alarm means when the smart keyless operating means is operated.

  According to this configuration, an alarm for taking out the portable device can be limited as necessary by operating an existing operation unit.

  In one embodiment of the present invention, the alarm limiting unit prohibits the alarm when the smart keyless operation unit is operated before the alarm is performed.

  According to this configuration, the troublesomeness caused by the alarm can be completely eliminated by operating the operation means in advance before the alarm is issued by the alarm means.

  In one embodiment of the present invention, the alarm means issues an alarm when the portable device is taken out of the vehicle and the door is closed.

  According to this configuration, it is possible to perform alarm limitation of the alarm unit that issues an alarm when the door is closed.

  In one embodiment of the present invention, the alarm means issues an alarm when the door is opened and the portable device is taken out of the vehicle.

  According to this configuration, it is possible to perform alarm limitation of the alarm unit that performs an alarm when the door is opened.

  In one embodiment of the present invention, the alarm means performs a first alarm when the door is opened and the portable device is taken out of the vehicle, and the portable device is taken out of the vehicle, and the door A second alarm is given when is closed.

  According to this configuration, it is possible to perform alarm limitation of an alarm unit that performs an alarm when the door is opened, or to perform alarm limitation of an alarm unit that performs an alarm when the door is closed.

  In addition, in the case where a plurality of alarms are performed in this way, it is possible to restrict any one of the alarms as necessary, and the alarms considered to be indispensable regardless of the operation of the operation means. Can be able to do this.

  In one embodiment of the present invention, the alarm limiting means is configured to limit the second alarm.

  According to this configuration, the first alarm can be left, and this can be used as an alarm for passengers remaining in the passenger compartment.

  In an embodiment of the present invention, the second alarm emphasis level is set higher than the first alarm emphasis level.

  According to this configuration, in the case where the alarm emphasis level is increased stepwise, the higher emphasis level can be restricted, so that the alarm restriction becomes more effective.

  In one embodiment of the present invention, the alarm means performs the first alarm toward the vehicle interior and performs the second alarm toward the outside of the vehicle.

  According to this structure, the troublesomeness given to the circumference | surroundings of a vehicle can be suppressed by restrict | limiting the warning performed toward the exterior of a vehicle.

  In one embodiment of the present invention, the smart keyless operation means is a detection means provided on the door to detect the presence or absence of an intention to operate.

According to this configuration, when the take-out person of the portable device opens the door and goes out of the vehicle, the alarm can be easily limited using the existing operation means located near the take-out person.
The detection means provided in the door can be constituted by, for example, a non-contact sensor such as a capacitance detection sensor and an infrared sensor in addition to a push button switch and a contact sensor that are accompanied by a pressing operation.

  In one embodiment of the present invention, the smart keyless operation means is a detection means provided in the portable device to detect whether or not there is an intention to operate.

According to this configuration, it is possible to perform alarm restriction by remote operation using the existing operation means of the portable device possessed by the take-out person even in a state where the vehicle is separated from the vehicle.
The detection means provided in the portable device only needs to be invalidated when the engine starting means is in an operating state. For example, in the case of a vehicle having a slide door and a rear gate, It can be configured by operating means. Further, if the portable device is provided with engine starting operation means for remotely operating engine starting, the engine starting operation means can be used.

  According to the present invention, an alarm when the portable device is taken out can be limited as required by the operation of the existing operation means.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a smart keyless device for a vehicle according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a vehicle X equipped with an in-vehicle device. This smart keyless device includes an in-vehicle device constituted by the smart keyless control unit 1 and a portable device identification code transmitter (not shown) as portable device identification code transmitting means for wirelessly transmitting a portable device identification code described later. And the portable device 2 to be configured.

  The smart keyless control unit 1 is connected to five smart keyless LF transmitting antennas 3a to 3e configured by coils for generating an LF magnetic field, for example, and these are installed in a vehicle X indicated by a one-dot chain line in FIG. Yes. 3a is an antenna for a D seat outside the vehicle provided in the vicinity of the driver's seat (hereinafter referred to as “D seat”) 4a, 3b is an antenna for a P seat outside the vehicle provided near the passenger seat (hereinafter referred to as “P seat”) 4b, and 3c is a rear seat. 4c, the right antenna for the rear seat outside the D seat 4a, 3d is the left antenna for the rear seat 4b, located near the rear side of the P seat 4b of the rear seat 4c, 3e is the vehicle interior R (one point in the figure) A vehicle interior antenna provided in a region surrounded by a chain line. By switching these transmission antennas according to the purpose, different transmission areas (that is, detection areas of the portable device 2) are formed. In the present embodiment, the D seat 4a side is defined as the right side of the vehicle X, and the P seat side is defined as the left side of the vehicle X. Further, in FIG. 1, for convenience of illustration, the smart keyless LF transmitting antennas 3a to 3e are referred to as vehicle exterior antennas 3a to 3d and vehicle interior antenna 3e. Also referred to as P seat antenna 3b.

  In FIG. 2, areas A, B, C, and D indicated by thick solid lines are the transmission areas of the antenna 3a for the outside D seat, the antenna 3b for the outside P seat, the right antenna 3c for the outside rear seat, and the left antenna 3d for the outside rear seat, respectively. These four antennas cover the area outside the side of the vehicle X. Moreover, the area in the vehicle interior R is covered by the vehicle interior antenna 3e.

  On the other hand, in the portable device 2 shown in FIG. 1, a different code is set for each portable device 2 as a portable device identification code transmitted from the portable device identification code transmitter. Has a portable device control unit 21 for performing transmission control. The portable device control unit 21 is connected to a transmission antenna 24 and a reception antenna 25 in addition to a lock switch 22 for locking the door by remote operation and an unlock switch 23 for releasing the door lock by remote operation. Each other's signals can be exchanged.

  The transmitting antenna 24 wirelessly transmits the portable device identification code unique to the portable device 2, a lock signal for locking the door, and an unlock signal for releasing the door lock, and the receiving antenna 25 is an in-vehicle device ( The LF signal (LF magnetic field) is received from the smart keyless LF transmitting antennas 3a to 3e).

  Here, when the occupant is in the areas A to D outside the passenger compartment R with the portable device 2, the portable device 2 receives the LF signal with the receiving antenna 25, and thus the wireless response signal The portable device identification code is transmitted from the transmission antenna 24. This portable device identification code is received by the in-vehicle receiving antenna 5 shown in FIG. In addition, as a radio response signal transmitted from the portable device 2, for example, an RF signal (radio wave) such as a UHF signal having a higher frequency domain than the LF signal is used.

  In the smart keyless control unit 1, the portable device identification code received via the in-vehicle receiving antenna 5 is stored in advance in the storage device 1a of the smart keyless control unit 1 (that is, the identification code of the in-vehicle device). Whether or not the portable device 2 is authorized for the vehicle, and the portable device 2 is authorized (the portable device identification in which the received portable device identification code is registered). When the normal determination is performed, the door corresponds to the distance between the vehicle and the occupant, that is, the strength of the radio response signal transmitted from the portable device 2 carried by the occupant, that is, the received electric field strength. The lock actuator 6 is operated to lock / unlock the doors 7a to 7d of the vehicle X shown in FIG.

  That is, when the distance between the vehicle X and the occupant is smaller than a predetermined value (the reception electric field strength is larger than the predetermined value), the doors 7a to 7d are unlocked, while the distance between the vehicle and the occupant is equal to or larger than the predetermined value. When there is a certain value (the reception electric field strength is below a predetermined value), the doors 7a to 7d are locked. The doors 7a to 7d are for the D seat 4a, the P seat 4b, the rear seat 4c right side, and the rear seat 4c left side, respectively, and the smart keyless LF transmission antennas 3a to 3d corresponding to these doors 7a to 7d. Is arranged.

  The doors 7a to 7d are locked / unlocked outside the vehicle compartment R provided on the door knobs 7a1 and 7b1 (see FIG. 3) of the doors 7a and 7b on the D seat 4a side or the P seat 4b side. The door access switches 8a and 8b, the lock switch 22 and the unlock switch 23 of the portable device 2 can be used.

  For example, the door access switches 8a and 8b are of a push button type that can be pressed from the outside of the passenger compartment R, and when these are pressed, the smart keyless control unit 1 receives a door access switch signal. It is like that.

  On the other hand, the lock switch 22 and the unlock switch 23 shown in FIG. 1 are also of a push button type, and when one of them is pressed, the transmission antenna 24 is controlled by the portable device control unit 21. At the same time, either the lock signal or the unlock signal is transmitted, and the smart keyless control unit 1 receives the signal via the in-vehicle receiving antenna 5.

  When the smart keyless control unit 1 receives the door access switch signal, the lock signal, or the unlock signal (hereinafter collectively referred to as an operation signal), the smart keyless control unit 1 activates the door lock actuator 6 to activate the doors 7a to 7d. Is locked or unlocked.

  That is, the door access switches 8a and 8b, the lock switch 22, and the unlock switch 23 are used to display an intention by pressing when the operator locks or unlocks the doors 7a to 7d. In other words, the presence or absence of the intention of the lock operation or the unlock operation is detected by these pressing operations.

  Further, as shown in FIG. 2, the vehicle X is provided with door switches 9a to 9d that detect the opening and closing of the doors 7a to 7d, and the smart keyless control unit 1 detects these detection signals. Can also be received. Note that the door access switches 8a and 8b and the door switches 9a to 9d are collectively shown in FIG. 1 for convenience of illustration.

  Furthermore, in this embodiment, when the portable device is taken out of the vehicle while the engine is operating, the next time the door is locked / unlocked or the engine is restarted, the portable device is not at hand, which is impossible. In order to prevent the situation with certainty, an alarm buzzer 10 for giving an alarm to the person taking out the portable device 2 is provided so as to be controlled by the buzzer sound control circuit 11 shown in FIG. As shown in FIG. 2, the alarm buzzer 10 is provided at a position in front of the D seat 4a (right side) on the front side of the passenger compartment R, and is attached to the back side (inside) of a fender panel (not shown), for example.

  The smart keyless control unit 1 can transmit a control signal to the buzzer sound control circuit 11, and warns when the portable device 2 is taken out based on the energized state of an ACC power line 12 and an IG power line 13 described later. It is determined whether or not it is in a state to transmit a control signal for performing.

  The ACC power supply line 12 and the IG power supply line 13 are supplied with power from a power supply (not shown) by the operation of the ignition starter 14 shown in FIG. The ignition starter 14 is an operation means for starting the engine. When the key knob 14a is rotated, four operations of accessory (ACC) OFF, accessory ON, ignition (IG) ON, and ignition START are switched. be able to.

  The ACC power supply line 12 and the IG line 13 are energized when the accessory start operation of the ignition starter 14 is performed and when the ignition start operation is performed. When the ignition starter 14 is operated to the ignition START, the engine control unit 15 (see FIG. 1). The engine start is started by the start control.

  Here, the lock release control of the key knob 14a of the ignition starter 14 will be described.

  In the state where the vehicle X is parked, the ignition starter 14 is operated to the accessory OFF position, and the key knob 14a and the steering wheel 16 (see FIG. 2) of the ignition starter 14 are locked. A member 17 shown in FIG. 2 is an instrument panel to which an on-vehicle device such as a meter unit (not shown) is attached.

  First, the driver who gets on the vehicle presses the key knob 14a. When the key knob 14a is pressed, an LF signal is transmitted from the vehicle interior antenna 3e. The portable device identification code is returned from the portable device 2 in response to the LF signal, and the portable device identification code is verified.

  When the portable device identification code matches the identification code of the in-vehicle device, the key knob 14a is unlocked, and the ignition starter 14 can be rotated to the accessory ON, ignition ON, and ignition START. . Hereinafter, any state of the accessory ON, the ignition ON, and the ignition START (the energized state of either the ACC power line 12 or the IG line 13) is referred to as an operation state of the ignition starter 14. In addition, the ignition starter 14 may be configured by a push button and may be accompanied by a pressing operation in addition to the one accompanied with a rotation operation.

  Here, when the portable device 2 is taken out when the ignition starter 14 is activated, the alarm buzzer 10 is based on the volume, time, etc. controlled by the smart keyless control unit 1 and the buzzer sound control circuit 11. It sounds and alarms.

  However, even though the ignition starter 14 is in the above-mentioned operating state, there is a case where the user can intentionally go out of the vehicle with the portable device because it can return to the vehicle again. The alarm by 10 is not only useless, but also annoying the take-out person and the like.

  By the way, when the ignition starter 14 is activated as described above, the lock / unlock operation by the door access switches 8a and 8b of the vehicle X and the lock switch 22 and the unlock switch 23 of the portable device 2 is, for example, As disclosed in Japanese Patent Application Publication No. 2006-207264, the smart keyless control unit 1 disables the lock (unlock control by the above operation is not performed). This is to prevent the doors 7a to 7d from being inadvertently locked / unlocked in the operating state of the ignition starter 14 including when the engine is operating.

  Accordingly, when the ignition starter 14 is activated, the door access switches 8a and 8b, the lock switch 22, and the unlock switch 23 are not functioned as switches for locking / unlocking the doors 7a to 7d.

  Therefore, in the present embodiment, when the ignition starter 14 is activated using the door access switches 8a and 8b, the lock switch 22, and the unlock switch 23 in which the lock / unlock operation is disabled, the switch When any one of 8a, 8b, 22, and 23 is operated, the smart keyless control unit 1 limits the alarm.

  Specifically, the smart keyless control unit 1 is configured to transmit an LF signal from the vehicle interior antenna 3e when any of the doors 7a to 7d is opened / closed while the ignition starter 14 is in operation. Thus, when there is no wireless response signal from the portable device 2 (when the portable device identification code is not transmitted), it is considered that the portable device 2 has been taken out.

  Then, the smart keyless control unit 1 determines whether or not any of the switches 8a, 8b, 22, 23 is operated at this timing, and determines that the operation is performed, the control signal is sent to the buzzer sound control circuit 11 Is transmitted to limit the alarm sound.

  As a result, the alarm can be limited as necessary by operating the existing door access switches 8a and 8b or the lock switch 22 and the unlock switch 23 without providing new operation means. Accordingly, an increase in the number of operation units is suppressed, and it is possible to prevent operation mistakes such as an operation error by the operator and an operation that makes it difficult to determine which operation unit should be operated.

  Further, by making it possible to use the door access switches 8a and 8b provided on the doors 7a and 7b as operation means for limiting the alarm, the take-out person of the portable device 2 opens the doors 7a to 7d and goes outside the vehicle. When leaving, the alarm can be easily limited by using an existing switch located near the take-out person.

  In addition, the lock switch 22 and the unlock switch 23 of the portable device 2 can be used as operation means for limiting the alarm, so that even if the taker is away from the vehicle X, the take-out person carries it. The alarm can be limited by remote operation using the existing switch of the portable device 2.

  Hereinafter, alarm limit control of the alarm buzzer 10 executed by the smart keyless control unit 1 will be described with reference to the flowchart of FIG.

  First, the smart keyless control unit 1 determines whether or not the ACC power supply line 12 or the IG power supply line 13 is energized by rotating the ignition starter 14 (whether or not the ignition starter 14 is operating). (Step s1). Here, if it is determined that none of them is energized (step s1: NO), the process is returned.

  On the other hand, if the smart keyless control unit 1 determines that any one of the ACC power supply line 12 and the IG power supply line 13 is in an energized state (step s1: YES), the smart keyless control unit 1 proceeds to step s2 and sets the doors 7a to 7d. It is determined whether or not any of the opening / closing operations has been performed. Specifically, the presence / absence of the opening / closing operation is determined based on the detection signals of the door switches 9a to 9d.

  Here, when the smart keyless control unit 1 determines that the detection signals from the door switches 9a to 9d have not changed and none of the doors 7a to 7d has been opened or closed (step s2: NO), the process returns. If it is determined that the detection signal of any of the door switches 9a to 9d has changed and the door 7a to 7d has been opened / closed (step s2: YES), the process proceeds to step s3, and the LF from the vehicle interior antenna 3e. Send a signal.

  Here, when there is a response from the portable device 2 to transmit an authorized portable device identification code to the in-vehicle receiving antenna 5 (step s4: YES), the portable device 2 exists in the passenger compartment R, and outside the vehicle. Since it is considered that the smart keyless control unit 1 has not been taken out, the smart keyless control unit 1 returns the processing.

  On the other hand, when there is no response from the portable device 2 to transmit the regular portable device identification code to the in-vehicle receiving antenna 5 (step s4: NO), the occupant opens and closes one of the doors 7a to 7d to open the portable device 2. Therefore, the smart keyless control unit 1 first determines whether or not the door access switches 8a and 8b or the lock switch 22 and the unlock switch 23 of the portable device 2 are operated in step s5. . Specifically, it is determined based on whether or not the smart keyless control unit 1 has received an operation signal resulting from the operation of any one of the switches 8a, 8b, 22, and 23.

  In step s5, when the operation signal due to the operation of any of the switches 8a, 8b, 22, 23 is not received (step s5: NO), the smart keyless control unit 1 controls the buzzer sound control circuit 11. A control signal is transmitted, and an alarm is generated by sounding the alarm buzzer 10 (step s6).

  At this time, the smart keyless control unit 1 counts the sounding time, and determines in step s7 whether or not a predetermined time has elapsed since the sounding started. Here, when the smart keyless control unit 1 determines that the predetermined time has elapsed (step s7: YES), the smart buzzer 10 sounds the alarm buzzer 10 as if the taker has left to a position where the alarm message has not arrived. Stop (step s8) and return the process.

  On the other hand, when the operation signal is received in step s5 (step s5: YES), the smart keyless control unit 1 prohibits the alarm by the alarm buzzer 10 (step s8) and returns the process.

  Thus, when the operation signal is received before the alarm by the alarm buzzer 10, that is, when any of the switches 8a, 8b, 22, 23 is operated in advance, the alarm is issued. By prohibiting it, the annoyance can be completely eliminated.

  When it is determined in step s7 that the predetermined time has not elapsed since the alarm was started (step s7: NO), the determination in step s5 is repeated to determine whether the operation signal is received during the alarm. It comes to judge.

  Here, if the operation signal has not been received, the smart keyless control unit 1 repeats the determinations of steps s6 and s7. If the operation signal is received, the smart keyless control unit 1 proceeds to step s8 and stops the alarm.

  Therefore, restricting the alarm means prohibiting the alarm before the alarm is issued, and stopping the alarm when the alarm is in progress.

  Thus, the alarm buzzer 10 is directed to the vehicle compartment R when it is detected that any of the doors 7a to 7d has been opened / closed in step s2 and there is no wireless response signal from the portable device 2 in step s4. Alarms. Thereby, when any of the doors 7a to 7d is opened and the portable device 2 is taken out of the vehicle, an alarm is given, or the portable device 2 is taken out of the vehicle and any of the doors 7a to 7d is closed. It is possible to limit the alarm to those that give an alarm when it is given.

  Further, in this case, it is possible to easily determine whether or not an alarm should be performed based on a change in the state of the doors 7a to 7d. In other words, if necessary, the alarm can be restricted (prohibited, It is possible to easily determine whether or not it is in a state where control should be performed.

  In addition, although embodiment mentioned above demonstrated the case where an alarm was made with the single alarm buzzer 10, this invention is not necessarily limited to this. For example, as shown in FIGS. 5 and 6, the present invention may be applied to an apparatus that issues an alarm using a plurality of alarm means including an alarm buzzer 18 a and an indicator 18 b provided in a passenger compartment R of the vehicle X ′. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the embodiment shown in FIGS. 5 and 6, the alarm buzzer 18a and the indicator 18b are both attached to a meter unit (not shown) provided on the D seat 4a side of the instrument panel 17 shown in FIG. Control is performed by the buzzer sound control circuit 19a and the indicator display control circuit 19b shown in FIG.

  The alarm buzzer 18a is configured to sound based on the sound volume controlled by the buzzer sound control circuit 19a, and to a carry-out person who is about to go out of the vehicle and a passenger in the passenger compartment R. An alarm is to be issued. On the other hand, the alarm buzzer 10 alerts a person who has taken out of the vehicle.

  Therefore, the alarm buzzer 18a is arranged such that the tip from which an alarm sound is emitted is directed into the vehicle interior R, and functions as a vehicle interior buzzer. On the other hand, the alarm buzzer 10 is arranged such that the tip from which an alarm sound is emitted is directed to the outside of the vehicle, and functions as an external buzzer.

  The alarm buzzer 10 is set to have a higher alarm sound, that is, an alarm emphasis level than the alarm buzzer 18a in order to give an alarm to a person who has taken out of the vehicle. It can be enhanced.

  The indicator 18b is controlled to be blinked by the indicator display control circuit 19b. By this blinking display, the take-out person and the passengers in the passenger compartment R who are about to go out of the vehicle are informed. An alarm is given to them.

  Further, the alarm buzzer 18a and the indicator 18b are operated to open any one of the doors 7a to 7d by the door switches 9a to 9d in order to give an alarm to a take-out person who is about to go out of the vehicle and an occupant in the passenger compartment R. When it is detected that there is no wireless response signal from the portable device 2, an alarm is given to the passenger compartment R.

  Further, the alarm buzzer 10 has closed any of the doors 7a to 7d based on the detection signal of any of the door switches 9a to 9d in order to give an alarm to the person who has taken out of the vehicle. Is detected, and when there is no wireless response signal from the portable device 2, a warning is given to the outside of the vehicle.

  And in this embodiment, even if the smart keyless control unit 1 receives the operation signal by the operation of any one of the switches 8a, 8b, 22, 23, the alarm buzzer 18a for the vehicle interior and the indicator 18b perform the alarm. However, only the alarm by the alarm buzzer 10 for outside the vehicle is limited.

  For this reason, the warning by the warning buzzer 18a and the indicator 18b for the passenger compartment can be used as the first warning, and this can be used as a warning for passengers remaining in the passenger compartment R. Then, by limiting the alarm by the alarm buzzer 10 as the second alarm, the alarm emphasis level is high, and further, the alarm that is issued toward the outside of the vehicle is limited. It becomes effective and can suppress the troublesomeness given to the circumference | surroundings of vehicle X '.

  Thus, in the case where a plurality of alarms are performed, it is also possible to limit the alarms limitedly as necessary as described above, regardless of the operation of the switches 8a, 8b, 22, 23, This can be done for alarms that are considered essential.

  Hereinafter, another embodiment of the alarm restriction control of the alarm buzzer 10, the 18a, and the indicator 18b executed by the smart keyless control unit 1 will be described with reference to the flowchart of FIG.

  Step s11 in the flowchart shown in FIG. 7 corresponds to step s1 in the flowchart shown in FIG. 4, and the smart keyless control unit 1 determines that either the ACC power supply line 12 or the IG power supply line 13 is in an energized state. If so (step s11: YES), the process proceeds to step s12, and it is determined whether or not an opening operation has been performed on any of the doors 7a to 7d based on the detection signals of the door switches 9a to 9d.

  Here, if the smart keyless control unit 1 determines that none of the doors 7a to 7d is opened (step s12: NO), the process returns and it is assumed that the door 7a to 7d is opened. If it determines (step s12: YES), it will progress to step s13 and will transmit LF signal from the vehicle interior antenna 3e.

  Here, when there is a response from the portable device 2 to transmit an authorized portable device identification code to the in-vehicle receiving antenna 5 (step s14: YES), the smart keyless control unit 1 returns the same processing as in step s4 in FIG. On the other hand, when there is no response (step s14: NO), it is considered that the occupant is trying to open one of the doors 7a to 7d and take the portable device 2 out of the vehicle. While the buzzer 18a is sounding, the indicator 18b is displayed in a blinking manner, thereby warning the take-out person and the passenger in the passenger compartment R (step s15). At this time, it is not determined whether or not the operation by the switches 8a, 8b, 22, 23 is performed.

  Next, the smart keyless control unit 1 proceeds to step s16, and determines whether or not the door opened by the take-out person is closed based on the detection signals of the door switches 9a to 9d. If it is determined that the closing operation has not been performed (step s16: NO), the smart keyless control unit 1 repeats the processes of steps s13 to s16, and if it is determined that the closing operation has been performed (step s16: YES), the step Proceeding to s17, the LF signal is transmitted again from the vehicle interior antenna 3e.

  When there is a response from the portable device 2 to transmit a proper portable device identification code to the in-vehicle receiving antenna 5 (step s18: YES), the smart keyless control unit 1 finally takes out the portable device 2. It is assumed that there was no, and the process is returned.

  On the other hand, when there is no response from the portable device 2 to transmit the legitimate portable device identification code to the in-vehicle receiving antenna 5 (step s18: NO), it is considered that the occupant took the portable device 2 out of the vehicle by closing the door. Therefore, the process proceeds to step s19, where it is determined whether any of the switches 8a, 8b, 22, 23 is operated. Thereafter, the smart keyless control unit 1 executes processing corresponding to steps s5 to s8 in FIG. 4 in steps s19 to s22, and prohibits the alarm of the alarm buzzer 10 based on the presence or absence of the operation signal. The necessity of stopping will be determined.

  By the way, in each of the above-described embodiments, the limitation by the alarm buzzer 10, 18a is realized by stopping or prohibiting the alarm. However, the present invention is not limited to this. For example, the emphasis level at the time of buzzer sounding is set. You may make it reduce. For example, the buzzer sound control circuits 11 and 19 may control the volume, frequency, and the like.

  Also, the method of alarming is not limited to stimulating hearing and vision like the alarm buzzers 10 and 18a and the indicator 18b. For example, the portable device 2 may be vibrated by a wireless signal from the smart keyless control unit 1 when the portable device 2 is taken out. In this case, the enhancement level can be controlled by controlling the amplitude, frequency, etc. of the vibration.

  Further, the door access switches 8a and 8b may be configured by a contact sensor that reacts only by bringing a hand into contact without pressing down. In this case, it can be constituted by a contact sensor capable of reading a fingerprint at the time of contact, and by registering the fingerprint of the authorized owner in advance in the storage device 1a of the smart keyless control unit 1, It is also possible to perform authentication control as to whether or not it matches the fingerprint read at the time of contact.

  Further, the door access switches 8a and 8b may be configured by proximity sensors that react only by bringing their hands close to each other. In this case, a capacitance that can detect a lock / unlock operation from outside the vehicle by the operator by detecting that a part of the operator's body (for example, a hand) has approached the door knobs 7a1 and 7b1 shown in FIG. It can be configured by a detection sensor, an infrared sensor, or the like.

  Further, in each of the above-described embodiments, the door access switches 8a and 8b or the lock switch 22 and the unlock switch 23 of the portable device 2 are employed as operation means for limiting the alarm, but the present invention is not necessarily limited thereto. . For example, in a vehicle equipped with a slide door and a rear gate, if the lock / unlock operation is invalidated when the ignition starter 14 is in operation, a switch for operating the slide door or rear gate is employed. May be.

  In addition, if the portable device 2 includes an engine start switch for remotely operating the engine, this may be adopted.

  Moreover, in embodiment shown in FIG. 5, FIG. 6, it is needless to say that it may change so that all the alarms by the alarm buzzers 10 and 18a and the indicator 18b may be restrict | limited.

In correspondence between the configuration of the present invention and the above-described embodiment,
The lock / unlock control means of the present invention corresponds to the smart keyless control unit 1,
Similarly,
The start control means corresponds to the engine control unit 15,
The engine starting means corresponds to the ignition starter 14,
The alarm means corresponds to the alarm buzzer 10, 18a, indicator 18b,
The smart keyless operation means corresponds to the door access switches 8a and 8b, the lock switch 22 and the unlock switch 23,
The alarm limiting means corresponds to the smart keyless control unit 1 that executes steps s8 and s22,
The detection means provided on the door corresponds to the door access switches 8a and 8b,
The detection means provided in the portable device corresponds to the lock switch 22 and the unlock switch 23,
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

The block diagram which shows the structure of the smart keyless apparatus of the vehicle which concerns on embodiment of this invention. Schematic of a vehicle equipped with an in-vehicle device. The principal part perspective view which shows an example of a door knob with a door access switch. The flowchart which shows the alarm limit control of the alarm buzzer performed by a smart keyless control unit. The block diagram which shows the structure of the smart keyless apparatus of the vehicle which concerns on another embodiment of this invention. Schematic of the vehicle carrying the vehicle equipment which concerns on another embodiment of this invention. The flowchart which shows the alarm limit control of the alarm buzzer performed by the smart keyless control unit which concerns on another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Smart keyless control unit 2 ... Portable machine 7a, 7b, 7c, 7d ... Door 8a, 8b ... Door access switch 10, 18a ... Alarm buzzer 18b ... Indicator 14 ... Ignition starter 15 ... Engine control unit 22 ... Lock switch 23 ... Unlock switch R ... Vehicle compartment X, X '... Vehicle

Claims (10)

Lock / unlock control means for locking / unlocking the vehicle door when the identification code of the in-vehicle device mounted on the vehicle matches the identification code of the portable device carried by the passenger, and engine start control A smart keyless device for a vehicle having a start control means,
Alarm means for giving an alarm when the portable device is taken out of the vehicle when the engine starting means is in operation; and
Smart keyless operation means whose operation is invalidated when the engine starting means is in an operating state;
A smart keyless device for a vehicle, comprising: an alarm limiting unit that limits an alarm of the alarm unit when the smart keyless operation unit is operated. The smart keyless device for a vehicle according to claim 1, wherein the alarm restriction unit prohibits the alarm when the smart keyless operation unit is operated before performing the alarm. 3. The smart keyless device for a vehicle according to claim 1, wherein the alarm means issues an alarm when the portable device is taken out of the vehicle and the door is closed. 3. The smart keyless device for a vehicle according to claim 1, wherein the alarm means issues an alarm when the door is opened and the portable device is taken out of the vehicle. The alarm means performs a first alarm when the door is opened and the portable device is taken out of the vehicle,
The smart keyless device for a vehicle according to claim 1 or 2, wherein a second alarm is given when the portable device is taken out of the vehicle and the door is closed. 6. The smart keyless device for a vehicle according to claim 5, wherein the alarm limiting means is configured to limit the second alarm. The smart keyless device for a vehicle according to claim 6, wherein an emphasis level of the second alarm is set higher than an emphasis level of the first alarm. 8. The smart keyless device for a vehicle according to claim 6 or 7, wherein the alarm means performs the first alarm toward the vehicle interior and also performs the second alarm toward the outside of the vehicle. The smart keyless device for a vehicle according to any one of claims 1 to 8, wherein the smart keyless operation means is detection means provided on the door to detect whether or not the user intends to operate. The smart keyless device for a vehicle according to any one of claims 1 to 9, wherein the smart keyless operation means is detection means provided in the portable device to detect whether or not there is an intention to operate.

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