JP2507815B2 - Vehicleless controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to a vehicle keyless control device for performing control processing relating to locking or unlocking of a door and a steering wheel without using a key. It is a thing.

(Prior Art) In recent years, the driver locks or unlocks the door lock simply by pushing the request switch provided on the outside handle of the door when the driver has a card capable of transmitting specific cryptographic information. Various system chems capable of performing are developed.

Further, there has been proposed a structure in which a driver holding a card can release the steering lock by simply pressing a request switch provided in the vicinity of the steering when the driver is seated in the driver's seat (Japanese Patent Laid-Open No. Sho 63). -1765).

More specifically, the control unit is installed outside the steering lock device, and the control unit has a matching circuit for matching the encrypted information transmitted from the card with the preset encrypted information. As a result of the collation by this collating circuit, if the preset cipher information and the cipher information transmitted from the card match, a control signal is sent from the control unit so that the steering lock can be unlocked by this control signal. Is configured.

Further, when the operation of the vehicle is completed, the steering can be locked by operating the ignition switch to stop the engine and then operating the steering lock switch.

(Problems to be Solved by the Invention) However, in such a conventional device, when the steering wheel is locked, the encryption information is not collated, and when the steering wheel is locked, there is no card. , For example, if the steering wheel is locked when a person with a card, etc. carries away a card while sending a person to the station,
I could not unlock the steering lock again without bringing the card.

Further, in such a conventional device, when the ignition switch is turned to the off position, the engine stops, and at the same time, various audio devices, air conditioners, and the like stop operating.
Further, since it is not necessary to remove the key, it is conceivable that the vehicle may be left as it is while the ignition switch is turned to the off position without confirming the lock of the steering wheel.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle keyless control device capable of reliably preventing the above-described operation.

[Structure of the Invention] (Means for Solving the Problems) Means provided by the present invention for achieving the above object are as follows.
As shown in FIG. 1, a detecting means 1 for detecting opening / closing of a vehicle door, a portable transmitting means 3 capable of transmitting specific cipher information, and a cipher information transmitted from the transmitting means 3, Based on this reception result, the judging means 5 judges whether or not the transmitting means 3 exists, and the notifying means for notifying the absence of the transmitting means 3 when the judging means 5 judges the absence of the transmitting means 3. 7 and an activation means 9 for activating the processing relating to the determination of the determination means 5 at least when the opening / closing of the door of the vehicle is detected.

(Operation) The present invention is provided with the detection means 1 for detecting the opening / closing of the vehicle door, and the activation means 9 activates the processing relating to the determination of the determination means 5 every time the vehicle door is opened / closed.
Therefore, the judging means 5 receives the cipher information transmitted from the transmitting means 3, and judges whether or not the transmitting means 3 exists based on the reception result every time the door of the vehicle is opened or closed. At this time, when it is determined that the transmitting means 3 does not exist, the notifying means 7 notifies that the transmitting means 3 does not exist.

Therefore, it is possible to confirm the existence of the transmitting means every time the door of the vehicle is opened and closed, and it is possible to reliably prevent the transmitting means from being lost.

Embodiment An embodiment according to the present invention will be described in detail below with reference to the drawings.

First, the overall configuration of the vehicle keyless control device according to the present invention will be described with reference to FIG.

The card 21 is a portable transmission means for transmitting specific cryptographic information. The door control antenna 23 is provided near the outside handle of the front door of the vehicle,
When the card 21 exists near the antenna 23, for example, when the driver carries the card 21, the cryptographic information transmitted from the card 21 is received. In addition, the antenna 25 for trunk control is built into the bumper on the rear side,
When 21 is present near the antenna 25, the cryptographic information transmitted from the card 21 is received. Further, the ignition control antenna 27 is provided outside the steering lock device described later and in the vicinity of the driver's seat, and when the card 21 is present near the antenna 27, the encrypted information transmitted from the card 21 is transmitted. To receive.

Next, the control unit 29 and its peripheral devices will be described in detail.

The antenna switching circuit 31 is connected to each of the antennas 23, 25, 27, and selectively switches and connects a specific antenna from the plurality of these antennas. The transmission / reception switching circuit 33 is connected to the antenna switching circuit 31, and is also connected to each of the reception circuit 35 and the transmission circuit 37. The transmission / reception switching circuit 33 connects the antenna switching circuit 31 and the receiving circuit 35 at the reception timing, and connects the antenna switching circuit 31 and the transmission circuit 37 at the transmission timing. The control unit 39 has an arithmetic processing unit such as a microcomputer, and executes processing relating to opening / closing of a door or a trunk and locking control of steering.

For example, the control unit 39 has a judgment means for judging whether or not the card 21 exists in the vicinity of the antenna 23 or 27 based on the information received via the antenna 23 or 27. When the presence of 21 is determined, the received cryptographic information is sent to the steering lock device 49 via the input / output circuit 47. Further, the control unit 39 is connected to the interface circuit 43 via the reset circuit 41. The control unit 39 is also connected to various detecting units via the interface circuit 45.

More specifically, the interface circuit 45 is a buzzer.
Connected with 46. The buzzer 46 is a notifying means for making a sound when the above-mentioned judging means judges that the card 21 is absent and sounds the absence of the card 21. Further, a switch SWK for detecting opening / closing of a vehicle door is connected to the interface circuit 45. Here, the control unit 39 has a starting means for forcibly starting the processing relating to the judgment of the above-mentioned judgment means when it is judged whether the door of the vehicle is opened or closed based on the detection information of the switch SWK. Further, the interface circuit 45 is connected to the switch SWA for detecting the locked state of the door, the vehicle speed sensor SNA, the switch SWB for detecting whether or not the shift lever is in the parking position, and the ignition switch SWD. ing. Also, the ignition switch SWD is connected to the battery BTT. Further interface circuit 4
Reference numeral 3 is connected to each of a door request switch SWE provided near the outside handle of the door and a trunk request switch SWF provided in the trunk lid portion.

Next, the internal configuration of the steering lock device 49 will be described.

The control unit 51 has an arithmetic processing unit such as a microcomputer, and a control unit via an input / output circuit 53.
Various control processes relating to unlocking of the steering wheel are executed on the basis of various information such as encryption information input from 29. The control unit 51 is also connected to the key request switch SWG via a reset circuit 55. This key request switch SWG is connected to the reset circuit 41 via the interface circuit 43, and the key request switch SW
When G is turned on, the control unit 51 is reset via the reset circuit 55.
The control unit 39 is reset via the reset circuit 41 at the same time when the control unit 39 is reset. The control unit 51 is also connected to the memory 57. This memory 57 stores request codes for requesting various information to the control unit 29.

The matching unit 59 is connected to the control unit 51 and also connected to the memory 61 for storing the encryption code. The collating unit 59 collates the cipher code stored in the memory 61 with the cipher information obtained from the control unit 51, that is, the cipher information transmitted from the card 21, and when both the information match as a result of the collation. Outputs the matching information to the control unit 51. Also drive circuit
63 is connected to the control unit 51 and also to the latch solenoid 65. The control unit 51 operates the latch solenoid 65 via the drive circuit 63 based on the matching information from the matching unit 59. Further, the switch SWH is adapted to be closed only when a knob switch (not shown) is present at the accessory position or when a spare key is inserted into the key insertion opening provided in the steering lock device.

Further, the steering lock device 49 has a lock means for locking the steering wheel (not shown), a release means for unlocking the lock means, and a restricting means for restricting the unlocking of the release means. ing. The drive circuit 63 and the latch solenoid 65 described above form a restriction releasing means for releasing the restriction of the restricting means. Therefore, when both the cipher information stored in the memory 61 by the collation unit 59 and the cipher information obtained from the control unit 29 match, the control unit 59
The drive circuit 63 and the latch solenoid 65 are operated based on the control command from the control unit 51 to release the restriction of the restriction means.

Next, the operation of the embodiment shown in FIG. 2 will be described with reference to FIG.

 First, the operation during boarding will be described.

In step S1, it is determined whether or not the ignition switch SWD is turned on. When the vehicle is on, the ignition switch SWD is not turned on, so the process proceeds from step S1 to step S2. In step S2, it is determined whether or not the knob switch described later has been rotated to the accessory (ACC) position, and the accessory (AC
Since it has not been rotated to the position C), the process proceeds to step S3 via A. Key request switch in step S3
It is determined whether the SWG is turned on, and if the key request switch SWG is not turned on, the process proceeds to step S11. In step S11, it is determined whether the door request switch SWE has been turned on,
When the door request switch SWE is turned on, the process proceeds to step S13. In step S13, the card 21 carried by the driver and the control unit 29 communicate with each other. Subsequently, in step S15, the preset encryption code is compared with the encryption information transmitted from the card 21 to determine whether the card 21 is present in a predetermined area, for example, near the outside handle of the vehicle door. . If the card 21 does not exist in the predetermined area, the process returns from step S15 to step S1. If the card 21 exists in the predetermined area in step S15, step S17
Go to and determine if the door is closed. If the door is not closed here, the process proceeds to step S19, and a warning is given that the door is not completely closed, that is, a so-called half-door. Next, the process returns from step S19 to step S1 via X again.
If the door is closed in step S17, the process proceeds to step S21, and it is determined whether the door is locked. If the door is locked in step S21, the process proceeds to step S23, and it is determined whether or not it is in the sensitivity lowering mode, that is, the mode in which the receiving sensitivity is lowered by leaving the card 21 in the passenger compartment. If it is in the sensitivity lowering mode in step S23, the process proceeds to step S25, the reception sensitivity recovery check process is executed, and then the process returns to step S1 via X again. If the sensitivity reduction mode is not set in step S23, the process proceeds to step S27 to unlock the door. As a result, the driver carrying the card 21 can open the door and get into the vehicle. Then, the process returns from step S27 to step S1 via X again.

Next, the operation when starting the engine will be described. If the ignition switch SWD is not turned on and the knob switch is not turned to the accessory (ACC) position, step S1 through step S2 to step S3
Proceed to. In step S3, it is determined whether or not the key request switch SWG has been turned on. If the key request switch SWG has been turned on, that is, if the knob switch has been pressed, the process proceeds to step S4. Step S4
Then the card 21 and control unit carried by the driver
Communicate with 29. Then in step S5 the card
It is determined whether or not 21 exists in a predetermined area, for example, in the vicinity of the driver's seat, and if the card 21 does not exist in the predetermined area, the process proceeds to step S7 and the buzzer 46 is sounded to indicate that the card 21 does not exist. To warn. Then, the process returns from step S7 to step S1 via X. If the card 21 is present in the predetermined area in step S5, step
Proceeding to S9, the cryptographic information transmitted from the card 21 and data such as a request code for requesting verification of the cryptographic information are transmitted to the steering lock device 49. As a result, the collating unit 59 collates the preset cipher code with the cipher information transmitted from the card 21, and when both the information coincides, the operation knob is pushed to rotate the knob switch described later to rotate the engine. Can be started. Further, here, when both pieces of information do not match as a result of the matching by the matching unit 59, the operation knob cannot be pushed, and theft of a third party can be reliably prevented.

Next, the operation when the card 21 is lost or the driver does not carry the card 21 will be described.

When the ignition switch SWD is turned on in step S1, the process proceeds to step S53, and it is determined whether the knob switch is turned to the accessory (ACC) position. When the knob switch is turned to the accessory (ACC) position in step S53, the process proceeds to step S55, and it is determined whether the key request switch SWG is turned on. When the key request switch SWG is not turned on in step S55, the process proceeds to step S57, and it is determined whether the door request switch SWE or the trunk request switch SWF is turned on.
Also, in step S1, the ignition switch SWD
If is not turned on, the process proceeds to step S2, and it is determined whether the knob switch is turned to the accessory (ACC) position. In step S2, the accessory (AC
When it is rotated to the position C), the process proceeds to step S87. In step S87, it is determined whether the door is closed. If the door is not closed, step S91
Proceed to. In step S91, it is determined whether or not the key request switch SWG is turned on, and if the key request switch SWG is not turned on, step S57.
Proceed to.

If neither the door request switch SWE nor the trunk request switch SWF is turned on in step S57, the process proceeds to step S59. In step S59, it is determined whether or not the door is closed again after the door is opened. If the door is closed, the process proceeds to step S61. In step S61, the card 21 and the control unit 29 communicate with each other. Then, in step S63, it is determined whether or not the card 21 exists in a predetermined area, and the driver determines that the card 21
If the card 21 is not carried, that is, if the card 21 does not exist in the predetermined area, the process proceeds to step S65 and the buzzer 46 is rung to warn that the card 21 does not exist. Then, the process returns from step S65 to step S1 via X again.

Next, a description will be given of the operation when the steering lock is forgotten when the driving of the vehicle is finished.

When the vehicle door is opened and the vehicle is alighted without terminating the operation of the vehicle and locking the steering wheel, that is, while rotating the knob switch to the accessory (ACC) position, the steps are performed through steps S1 and S2. Go to step S87. In step S87, it is determined whether the opened door is closed. If the door is closed, the process proceeds to step S89. In step S89, the buzzer 46 is sounded to warn that the steering lock has been forgotten. Next step
In S91, it is determined whether or not the key request switch SWG is turned on, and if the key request switch SWG is not turned on, the process proceeds to step S57. In step S57, it is determined whether the door request switch SWE or the trunk request switch SWF has been turned on, and if any of the request switches has been turned on, the process proceeds to step S67. In step S67, it is determined whether or not the door is opened. If the door is not opened, the process proceeds to step S75 and it is determined whether or not the door is locked. If the door is not locked, the process returns to step S1 via X again.

As described above, when the steering is not locked, the door is locked.

If the door is opened in step S67, the process proceeds to step S69 to communicate with the card 21. Subsequently, in step S71, it is determined whether or not the card 21 exists in the predetermined area. If the card 21 exists in the predetermined area, the process proceeds to step S73, in which the door is not completely closed, that is, the half-door. To warn.

If the door is locked in step S75, the process proceeds to step S77 and it is determined whether or not the sensitivity reduction mode is set. When it is not in the sensitivity lowering mode in step S77, the process proceeds to step S79. If the sensitivity reduction mode is set in step S77, the process proceeds to step S78 to recover the receiving sensitivity, and then the process proceeds to step S79. In step S79, communication is performed with the card 21. Subsequently, in step S81, it is determined whether or not the card 21 exists in the predetermined area. If the card 21 exists in the predetermined area, the process proceeds to step S83 to unlock the door.

 Next, the operation when stopping the engine will be described.

When the operation of the vehicle is finished and the knob switch is turned to the accessory (ACC) position, the process proceeds to step S87 via step S1 and step S2. If the door is not closed in step S87, the process proceeds to step S91. In step S91, it is determined whether the key request switch SWG has been turned on. If the key request switch SWG has been turned on, the process proceeds to step S93. In step S93, it is determined whether the door request switch SWE or the trunk request switch SWF has been turned on. If neither request switch is turned on, the process proceeds to step S95. Step S
In 95, communication is performed with the card 21. Then step
In S97, it is determined whether or not the card 21 exists in a predetermined area. If the card 21 exists near the driver's seat, for example, the process proceeds to step S101. In step S101, the traveling speed of the vehicle is detected based on the information from the vehicle speed sensor SNA. Then, in step S103, when the vehicle is in the traveling state, the process returns to step S1 via X. As a result, the steering cannot be locked when the vehicle is running, and a fail-safe function during running can be provided.

If the vehicle is not running in step S103, the process proceeds to step S105, and it is determined whether the shift lever is in the parking range, that is, the parking position. If the shift lever is not located in the parking range in step S105, the process returns to step S1 via X again. As a result, when the shift lever is located outside the parking range, the steering cannot be locked, and this can be taken as a safety measure when the vehicle is driven next time.

When the shift lever is located in the parking range in step S105, the process proceeds to step S107, in which the steering lock device 49 stores the encrypted information transmitted from the card 21 and data such as a request code for requesting verification of the encrypted information. Send to. As a result, when the encryption code preset in the collating unit 59 and the encryption information transmitted from the card 21 match, the operation knob is pushed to rotate the knob switch to the lock (LOCK) position to lock the steering. can do.

If the card 21 does not exist in the predetermined area in step S97, the process proceeds to step S99 and the buzzer 46 is rung to warn that the card 21 does not exist.

 Next, the operation when getting off the vehicle will be described.

When the knob switch is turned to the accessory (ACC) position after the operation of the vehicle is completed, the process proceeds to step S3 via steps S1 and S2. In step S3, it is determined whether or not the key request switch SWG is turned on. If the key request switch SWG is not turned on, the process proceeds to step S11. In step S11, it is determined whether or not the door request switch SWE has been turned on. If the door request switch SWE has been turned on, the process proceeds to step S13 to communicate with the card 21. Subsequently, in step S15, it is determined whether or not the card 21 exists in the predetermined area. If the card 21 exists in the predetermined area, the process proceeds to step S17. Step S17
Then, it is determined whether or not the door is closed. If the door is closed, the process proceeds to step S21. In step S21, it is determined whether the door is in the locked state. If the door is not in the locked state, the process proceeds to step S29. In step S29, the door is locked. Succeedingly, in a step S31, it is detected whether or not the card 21 is left in the vehicle compartment. Next, in step S33, it is determined whether or not the card 21 is left in the vehicle compartment. If the card 21 is not left in the vehicle compartment, the step is performed again via X.
Return to S1. If it is determined in step S33 that the card 21 has been left behind in the vehicle compartment, step S35
Then, the reception sensitivity of the control unit 29 is reduced. Therefore, even if the card 21 is left in the passenger compartment, even if a third person turns on the door request switch SWE, communication between the left card 21 and the control unit 29 cannot be performed. It is possible to reliably prevent the vehicle from being stolen.

 Next, the operation related to opening and closing the trunk will be described.

If both the key request switch SWG and the door request switch SWE have not been turned on, step S
It progresses to step S37 via 3 and step S11. In step S37, it is determined whether or not the trunk request switch SWF has been turned on. If the trunk request switch SWF has not been turned on, the process proceeds to step S39. In step S39, it is determined whether or not the lock state of the trunk is released. If the lock state is not released, the process proceeds to step S41. In step S41, it is determined whether or not the trunk has changed from the open state to the closed state. If it has not changed from the open state to the closed state, the process returns to step S1 via X. If the trunk changes from the open state to the closed state in step S41, the process proceeds to step S31.
If the trunk is unlocked in step S39, that is, if the trunk is open, the process proceeds to step S43 to restore the reception sensitivity of the control unit 29. Then, the process returns from step S43 to step S1 via X again. When the trunk request switch SWF is turned on in step S37, the process proceeds to step S45, and communication is performed between the card 21 and the control unit 29. Subsequently, in step S47, it is determined whether or not the card 21 exists in the predetermined area. If the card 21 does not exist in the predetermined area, the process returns to step S1 via X again. Also, in step S47, card 2
When 1 is present in the predetermined area, for example, when the driver carrying the card 21 is present near the trunk lid, the process proceeds to step S49 to open the trunk. Then, the process returns from step S49 to step S1 via X again.

Next, the operation of the steering lock device 49 will be described with reference to FIG.

To the steering lock device 49, key cylinders (not shown) are sequentially locked (LOCK) from the accessory (AC
K) switch, ON (ON) position, knob switch 49a for rotating to the (START) position, and operation knob 49b for releasing the restriction of the locked state of the steering wheel
And have. The knob switch 49a includes a key request switch SWG and an ignition switch SWD. When the knob switch 49a is pushed, the key request switch SWG operates, and when the Eve switch 49a is rotated, the ignition switch SWD operates. .

In step S201, the operation with the card 21 is performed by pressing the operation knob while pressing the knob switch 49a. That is, the key request switch SWG is turned on by pressing the knob switch 49a. At this time, as shown in step S203, when the knob switch 49a or the operation knob 49b is operated by a child's mischief or the like, the knob switch 49a cannot be rotated because the operation procedure is not well known. Also, as shown in step S205, when the driver does not carry the card 21, the encryption information is not collated as described above, so the operation knob
Since the knob 49b cannot be pushed in, rotation of the knob switch 49a is prohibited.

If the driver carries the card 21 when the knob switch 49a is pushed in, the operation knob 49b can be pushed in as shown in step S207.
By pushing 9b, the knob switch 49a can be selected, that is, rotated, to the accessory (ACC) position. Then, as shown in step S209, the engine can be started because the accessory (ACC) position can be freely rotated to the START position. When the engine is started, the knob switch 49a automatically returns to the ON position as shown in step S211.

Next, in step S213, when the door is closed from the open state, it is detected whether or not the card 21 exists in a predetermined area. At this time, if the driver does not carry the card 21, the driver warns that the card 21 does not exist as shown in step S215.

Next, when the vehicle is stopped and the engine is stopped, the knob switch 4 is moved from the start (START) position to the accessory (ACC) position as shown in step S217.
9a can be freely rotated, and the engine can be stopped by rotating the knob switch 49a to the accessory (ACC) position. Then, as shown in step S219, when the door is opened while the knob switch 49a is rotated to the accessory (ACC) position, the warning that the steering lock is forgotten is issued.

To lock the steering, step S2
Knob switch 49a is an accessory (ACC) as shown in 21.
With the knob switch 49a being pushed in, the operation knob 49b is pushed in. At this time step S223
When the driver does not carry the card 21, the operation knob 49b cannot be pushed in as shown in, and an alarm that the card 21 does not exist is issued. Further, as shown in step S225, when the vehicle is an automatic (A / T) vehicle and the shift lever is outside the parking range, the lock of the operation knob 49b is not released. Similarly, step S227
As shown in, when the vehicle is not an automatic (A / T) vehicle and the vehicle is in a traveling state, the lock of the operation knob 49b is not released. Further, as shown in step S229, when the driver carries the card 21 and the vehicle is stopped, the operation knob 49b is pushed in to lock the knob switch 49a (LOC
K) position can be rotated.

As described above, a lock (LOCK) for locking the steering wheel at the turning position for turning the knob switch 49a.
Position, the position of the accessory (ACC) that can operate the air conditioner, the sound device, etc., the ON position that is the turning position when the vehicle is running, and the start (START) when the engine is started. The position of the knob switch 49a
The audio device is operating when the is turned from the ON position to the accessory (ACC) position, and the driver securely pushes the knob switch to the lock (LOCK) position next to the accessory (ACC). It is possible to prevent the driver from forgetting to lock the steering wheel by rotating the steering wheel.

EFFECTS OF THE INVENTION As described above, according to the present invention, when the opening / closing of the door of the vehicle is detected, the processing relating to the determination as to whether or not the transmitting means is present is performed. It is possible to reliably prevent the user from getting off the vehicle without a card.

[Brief description of drawings]

1 is a block diagram showing a claim, FIG. 2 is a block diagram showing an embodiment according to the present invention, FIG. 3 is a flow chart showing the operation of the embodiment shown in FIG. 2, and FIG. 4 is a steering lock. It is explanatory drawing which showed the effect | action of an apparatus. 1 ... Detecting means 3 ... Sending means 5 ... Judging means 7 ... Informing means 9 ... Starting means

Claims (1)

(57) [Claims] 1. A detection means for detecting opening / closing of a vehicle door,
A portable transmitting means capable of transmitting specific cryptographic information; a determining means for receiving the cryptographic information transmitted from the transmitting means and determining whether or not the transmitting means is present based on the reception result; and the determining means. Means for notifying the absence of the transmission means when the absence of the transmission means is determined, and an activation means for activating the processing relating to the determination of the determination means at least when the opening / closing of the door of the vehicle is detected. A keyless control device for a vehicle, comprising: