JPH03148351A - Keyless controller for vehicle - Google Patents

Abstract

PURPOSE:To certainly prevent leaving a car in the state of not carrying a card by carrying out a process corresponding to a judgement whether the card exists or not when opening and closing of a car door is detected in the controller in a keyless controller for vehicle using a portable sending means (card) which can send a specific cipher information. CONSTITUTION:In a system and others devised to release locking of steering simply by pressing a request switch provided adjacent to the steering when a driver has a card 3 as a portable sending means which can send a specific cipher information, a detection means 1 to detect opening and closing of a door of a car is provided. Additionally, a judging means 5 to receive a cipher information sent from the card 3 and to judge the existence of the card 3 on the basis of this received result is provided. Then, it is devised to actuate an information means 7 when the non-existence of the card 3 is judged, and the process corresponding to the judgement of the above judging means 5 is devised to start by a starting means 9 at least when opening and closing of the car door is detected.

Description

[Detailed description of the invention] [Object of the invention] - (Industrial field in Icheon) The present invention provides a keyless control device for a vehicle that performs control processing related to locking or unlocking of doors and steering wheel without using a key. It is related to.

(Prior art) In recent years, when a driver is in possession of a card that can transmit specific coded information, the door can be locked or unlocked simply by pressing a request switch provided on the outside handle of the door. Various systems have been developed that can do this.

Furthermore, a device has been proposed in which the driver holding the card can unlock the steering wheel by simply pressing a request switch installed near the steering wheel when sitting in the driver's seat (Japanese Patent Laid-Open No. 63 -176
Publication No. 5).

To be more specific, a control unit is installed outside the steering lock device, and this control unit has a verification circuit for verifying the encrypted information transmitted from the card and the encrypted information set in advance. . As a result of the verification by this verification circuit, if the preset cryptographic information matches the cryptographic information sent from the card, a control signal is sent from the control unit, and this control signal allows the steering to be unlocked. It is composed of

Furthermore, when driving the vehicle is finished, the steering can be locked by operating the steering lock switch≠4 after operating the ignition switch to stop the engine.

(Problem to be Solved by the Invention) However, in such a conventional device, when locking the steering wheel, the code information is not verified, and if the card is not present when locking the steering wheel, For example, if you are dropping someone off at the station and that person takes away your bag with your card in it, and the steering wheel is locked, you will not be able to unlock the steering wheel again unless you bring your card with you. There wasn't.

Further, in such conventional devices, when the ignition switch is turned to the off position, the engine stops and at the same time, various sound devices, air conditioners, etc. stop operating.

Further, since the operation of removing the key is not required, it is conceivable that the driver leaves the vehicle with the ignition switch turned to the off position without checking that the steering wheel is locked.

The present invention has been made in view of the above-mentioned aIIIi, and an object thereof is (1) to provide a keyless Mal device for a vehicle that can reliably prevent the above-mentioned operation.

[Structure of the Invention] (Means for Solving the Problems) The means provided by the present invention for achieving the above-mentioned agreement include a detection means 1 for detecting opening and closing of a door of a vehicle, as shown in FIG. A portable transmitting means 3 capable of transmitting specific encrypted information; and a determining means 5 receiving the encrypted information transmitted from the transmitting means 3 and determining whether or not the transmitting means 3 exists based on the reception result. , the determining means 5 is the transmitting means 3
notification means 7 for notifying the absence of the transmitting means 3 when determining the absence of the transmitting means 3; and starting means 9 for starting the process related to the determination of the determining means 5 at least when detecting opening/closing of a door of the vehicle. It was constructed by having the following.

(Function) The present invention provides detection means 1 for detecting opening/closing of a vehicle door.
The activation means 9 is provided each time the vehicle door is opened or closed.
The processing related to the judgment by the judgment means 5 is activated. Therefore, the determining means 5 receives the encrypted information transmitted from the transmitting means 3, and determines whether the transmitting means 3 is present based on the reception result each time the door of the vehicle is opened or closed. At this time, when it is determined that the transmitting means 3 is not present, the notifying means 7 notifies that the transmitting means 3 is not present.

Therefore, the presence of the transmitting means can be confirmed every time the vehicle door is opened or closed, and loss of the transmitting means can be reliably prevented.

(Embodiment) An embodiment of 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 explained with reference to FIG.

The card 21 is a portable transmission means for transmitting specific encrypted information. An antenna 23 for controlling the door is provided near the outside handle of the door on the front seat side of the vehicle, and when the card 21 is present near the antenna 23, for example, the driver is carrying the card 21. In this case, the cryptographic information transmitted from the card 21 is received. An antenna 25 for trunk control is built into the bumper 1 on the rear side, and when the card 21 is present near the antenna 25, the encrypted information transmitted from the card 21 is received.

An antenna 27 for ignition control is provided near the driver's seat on the outside of the steering lock device, which will be described later. Receive cryptographic information.

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

The antenna switching circuit 31 is connected to each of the antennas 23, 25, and 27, and selectively switches and connects a specific antenna from among the plurality of antennas. The transmission/reception switching circuit 33 is connected to the antenna switching circuit 31, and is also connected to the receiving 11 path 35 and the transmitting circuit 37, respectively. This 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 reception circuit 35 at the transmission timing.
1 and the transmitting circuit 37 are connected. The control unit 39 has an arithmetic processing unit such as a microcomputer, and executes processes related to control related to opening and closing of doors and trunks and lock control of the steering wheel.

For example, the control unit 39 includes a determining means for determining whether the card 21 is present near the antenna 23 or 27 based on information received via the antenna 23 or 27, and this determining means 21, the received cryptographic information is sent to the input/output circuit 47.
It is sent to the steering lock device 49 via. Further, the control section 39 is connected to an interface circuit 43 via a reset circuit 41. Further, the control section 39 is connected to various detection sections via an interface circuit 45.

Specifically, the interface circuit 45 is connected to a buzzer 46. This buzzer 46 is a notification means that sounds when the above-mentioned judgment means determines that the card 21 is not present to notify that the card 21 is not present. Further, a switch SWK for detecting opening/closing of a vehicle door is connected to the interface circuit 45. Here, when the control section 39 determines the IMI Lffl of the vehicle door based on the detection information of the switch SWK, it sets the activation means for forcibly starting the process related to the determination of the aforementioned determination means. The interface circuit 45 also includes a switch SWA for detecting the locked state of the door, a vehicle speed sensor SNA, a switch SWB for detecting whether the shift lever is in the parking position, and an ignition switch SWD. It is connected. Further, the ignition switch SWD is connected to the battery BTT. Furthermore, interface circuit 4
3 is connected to a door request switch SWE provided near the outside handle of the door and a trunk request switch SWF provided to the trunk lift section.

Next, the internal configuration of the steering lock device W49 will be explained.

The control unit 51 has an arithmetic processing unit such as a microcomputer, and performs various control processes related to unlocking the steering wheel based on various information such as coded information manually inputted from the control unit 29 via the input/output circuit 53. Execute. Further, the control section 51 is connected to the key request switch SWG via a reset circuit 55. This key request switch SWG is the interface circuit 43
It is connected to the reset circuit 41 via the key request switch SWG, and when the key request switch SWG is turned on, it resets the control unit 51 via the reset circuit 55 and at the same time resets the control unit 39 via the reset circuit 41. It has become. Further, the $11p section 51 is connected to a memory 57. This memory 57 is control unit 2
Stores request codes for requesting various information from 9.

The verification section 59 is connected to the control section 51 and also to a memory 61 for storing the encryption code. This collation unit 59 collates the cryptographic code stored in the memory 61 and the cryptographic information obtained from the control unit 51, that is, the cryptographic information transmitted from the card 21, and when the two pieces of information match as a result of one verification, outputs matching information to the control unit 51. Further, the drive circuit 63 is connected to the control section 51 and also to the rough chillenoid 65. Control unit 51
operates the love chilenoid 65 via the drive circuit 63 based on the matching information from the matching section 59. Further, the switch SWH is closed only when a knob switch (not shown) is located at the accessory position or when a spare key is inserted into a key insertion slot provided in the large tearing lock device.

The steering lock device 49 also includes a locking means (not shown) for locking the steering, a releasing means for unlocking the locking means, and a regulating means for restricting the unlocking of the releasing means. ing. Further, the drive circuit 63 and the love chilenoid 65 described above form a restriction release means for releasing the restriction of the restriction means. Therefore, when the collation unit 59 matches the encrypted information, that is, the encrypted code stored in the memory 61 and the encrypted information obtained from the control unit 29, the drive circuit 63 and the Lab Chillenoid 65 is configured to operate to release the restriction of the restriction means.

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

First, we will explain the operation when riding.

In step S1, it is determined whether or not the ignition switch SWD has been turned on. Since the ignition switch SWD is not turned on when the vehicle is in the vehicle, the process advances from step S1 to step S2. Step S
In 2, the knob switch that will be explained later is an accessory (AC
It is determined whether or not it has been rotated to the position C), and since it has not been rotated to the accessory (ACC) position, the process proceeds to step S3 via A. In step S3, it is determined whether the key request switch SWG has been turned on, and if the key request switch SWG has not been turned on, the process advances to step Sll. In step Sll, it is determined whether the door request switch SWE has been turned on, and if the door request switch SWE has been turned on, the process advances to step S13.

In step S13, communication is performed between the card 21 carried by the driver and the control unit 29. Subsequently, in step S15, the preset encryption code and the card 21 are
Card 21 is checked against the encrypted information sent from
is present in a predetermined area, for example, near the outside handle of a vehicle door. Here, if the card 21 does not exist in the predetermined area, step s
15, the process returns to step S1 again. Also, step S15
If the card 21 is present in the predetermined area, the process advances to step 517 and it is determined whether the door is closed.

Here, if the door is not Tclll, step S1
Proceed to step 9 to issue a warning that the door is not completely closed. Next, from step S19, the process returns to step S1 via X. If the door is closed in step 517, the process advances to step S21 and it is determined whether the door is locked. If the door is locked in step 521, the process proceeds to step S23, and it is determined whether the mode is a sensitivity reduction mode, that is, a mode in which the reception sensitivity is reduced due to the card 21 being left behind in the vehicle interior. If it is determined in step S23 that the mode is in the sensitivity reduction mode, the process advances to step S25, where a reception sensitivity recovery check process is executed, and then returns to step Sl again via X. If it is determined in step S23 that the mode is not in the sensitivity reduction mode, the process advances to step S27 and the door is unlocked. This allows the driver carrying the card 21 to open the door and get into the vehicle. Subsequently, the process returns from step S27 to step S1 via X.

Next, the operation when starting the engine will be explained.

If the ignition switch SWD is not turned on and the knob switch is not rotated to the accessory (ACC) position, the process proceeds from step S1 to step S3 via step S2. In step S3, it is determined whether the key request switch SWG has been turned on, and if the key request switch SWG has been turned on, that is, if the knob switch has been pressed, the process advances to step S4. In step S4, communication is performed between the card 21 carried by the driver and the control unit 29. Subsequently, in step S5, the card 21 is placed in a predetermined area,
For example, it is determined whether the card 21 is present near the driver's seat, and if the card 21 is not present in a predetermined area, the process proceeds to step S7 and the buzzer 46 is sounded to warn that the card 21 is not present. Subsequently, the process returns from step S7 to step S1 via X. Further, if the card 21 exists in the predetermined area in step S5, step S5
The process advances to step 9, where data such as the encrypted information transmitted from the card 21 and a request code for requesting verification of this encrypted information are transmitted to the steering lock device 49. As a result, the verification unit 59 uses the preset encryption code and the card 2.
1 and the encrypted information sent from 1, and if both pieces of information match, the engine can be started by pushing in the operating knob and turning a knob switch, which will be described later. Also, if the information on both sides does not match as a result of the verification by the verification unit 59, the operation knob cannot be pushed in.
Theft by a third party can be reliably prevented.

Next, if the card 21 is lost or the driver
Explain how it works when you don't have it with you.

If the ignition switch SWD is turned on in step S1, the process advances to step 553 and it is determined whether the knob switch has been rotated to the accessory (ACC) position. If the knob switch is rotated to the accessory (ACC) position in step S53, the process advances to step S55 and it is determined whether the key request switch SWG has been turned on. If the key request switch SWG has not been turned on in step S55, the process advances to step S57 and it is determined whether the door request switch SWE or the trunk request switch SWF has been turned on.

Further, in step S1, the ignition switch S
If the WD is not turned on, the process advances to step S2 and it is determined whether the knob switch has been rotated to the accessory (ACC) position. If it has been rotated to the accessory (ACC) position in step S2, the process advances to step S87. In step S87, it is determined whether the door is closed, and if the door is not closed, the process advances to step S91. In step S91, it is determined whether the key request switch SWG has been turned on, and if the key request switch SWG has not been turned on, the process advances to step S57.

If neither the door request switch SWE nor the trunk request switch SWF are turned on in step S57, the process advances to step S59.

In step S59, it is determined whether the door is closed again after it has been opened, and if the door is closed, the process advances to step 561. In step S61, communication is performed between the card 21 and the control unit 29. Subsequently, in step S63, it is determined whether the card 21 exists in a predetermined area. If the driver does not carry the card 21, that is, if the card 21 does not exist in the predetermined area, the process advances to step S65. A buzzer 46 is sounded to warn that the card 21 is not present.

Then, from step S65 to step S1 again via X.
Return to

Next, we will explain what happens when you forget to lock the steering wheel when you finish driving the vehicle.

When you finish driving the vehicle and open the vehicle door and get out of the vehicle without locking the steering wheel, that is, with the knob switch turned to the accessory (ACC) position, proceed through steps S1 and S2. The process then proceeds to step S87. In step S87, it is determined whether the opened door is closed, and if the door is closed, the process advances to step S89. In step S89, the buzzer 46 is sounded to warn that the steering wheel has been forgotten to be locked. Next, in step S91, the key request switch S
It is determined whether the WG has been turned on, and if the key request switch SWG has not been turned on, the process advances 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 request switch has been turned on, the process advances to step S67. In step S67, it is determined whether the door is open, and if the door is not open, step S67 is performed.
Step 75 determines whether the door is locked.

If the door is not locked, the process returns to step S1 via X.

As described above, if the steering wheel is not locked, the door locking is prohibited.

Here, if the door is in an open state in step S67, the process advances to step 869 and communication with the card 21 is performed. Subsequently, in step S71, it is determined whether the card 21 exists in a predetermined area, and if the card 21 exists in a predetermined area, the process proceeds to step S7.
Proceed to step 3 to issue a warning that the door is not completely closed, that is, the door is ajar.

If the door is locked in step S75, the process advances to step S77 and it is determined whether the sensitivity reduction mode is in effect. If it is not the sensitivity reduction mode in step S77, the process advances to step S79. If it is determined in step S77 that the sensitivity is reduced, the process proceeds to step 578 and after restoring the reception sensitivity, step S79
Proceed to.

In step S79, communication is performed with the card 21.

Subsequently, in step S81, it is determined whether the card 21 exists in a predetermined area. If the card 21 exists in a predetermined area, the process proceeds to step S83 and the door is unlocked.

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

When you finish driving the vehicle, remove the knob switch from the accessory (A
CC), the process advances to step S87 via step S1 and step S2. Step S
If the door is not closed at 87, the process advances 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 is turned on, the process advances 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, and if both request switches have not been turned on, the process advances to step S95.

In step S95, communication is performed with the card 21.

Subsequently, in step S97, it is determined whether the card 21 is present in a predetermined area, and if the card 21 is present near the driver's seat, for example, the process advances to step S101. In step S101, the traveling speed of the vehicle is detected based on information from the vehicle speed sensor SNA. Subsequently, in step S103, if the vehicle is in a running state, the process returns to step S1 via X. As a result, the steering wheel cannot be locked while the vehicle is running, and a fail-safe function can be provided when the vehicle is running.

If the vehicle is not in a running state in step S103, the process proceeds to step S105, where it is determined whether the shift lever is in the parking range, that is, in the parking position. If the shift lever is not in the parking range in step S105, the process returns to step S1 via X. This prevents the steering from being locked when the shift lever is located outside the parking range, which can be used as a safety measure when driving the vehicle next time.

If the shift lever is located in the parking range in step S105, the process advances to step S107, and data such as the encrypted information transmitted from the card 21 and the request code for requesting the heating range of this encrypted information are sent to the steering lock device. Send to 49. As a result, the verification unit 59 uses the preset encryption code and the card 21.
If the code information sent from
K) The steering can be locked by rotating it to the position.

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

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

When you finish driving the vehicle, remove the knob switch from the accessory (A
CC), the process proceeds to step S3 via step Sl and step S2. In step S3, it is determined whether the key request switch SWG has been turned on, and if the key request switch SWG has not been turned on, the process advances to step Sll. In step S11, it is determined whether the door request switch SWE has been turned on. If the door request switch SWE has been turned on, the process advances to step S13 and communication with the card 21 is performed.

Subsequently, in step 315, it is determined whether the card 21 exists in a predetermined area, and if the card 21 exists in the predetermined area, the process advances to step 517.

In step 517, it is determined whether the door is closed, and if the door is closed, the process advances to step S21. In step 521, it is determined whether the door is in the locked state, and if the door is not in the locked state, the process advances to step S29.

In step S29, the door is locked. Subsequently, in step S31, it is detected whether the card 21 has been left behind in the vehicle. Next, in step S33, the card 21
It is determined whether the card 21 has been left behind in the vehicle interior, and if the card 21 has not been left behind in the vehicle interior, the process returns to step S1 via X. If it is determined in step S33 that the card 21 has been left behind in the vehicle, the process proceeds to step S35 and the reception sensitivity of the control unit 29 is lowered. Therefore, even if the card 21 is left behind inside the vehicle, even if a third party turns on the door request switch SWE, no communication will be possible between the left card 21 and the control unit 29. , vehicle theft can be reliably prevented.

Next, the operations related to opening and closing the trunk will be explained.

If both the key request switch SWG and the door request switch SWE are not turned on, the process advances to step S37 via step S3 and step Sll. In step 537, the trunk request switch S
It is determined whether the WF has been turned on, and if the trunk request switch SWF has not been turned on, the process advances to step S39. In step S39, it is determined whether the trunk is unlocked. If the trunk is not unlocked, the process advances to step S41. In step S41, it is determined whether the trunk has changed from an open state to a closed state. If the trunk has not changed from an open state to a closed state, the process returns to step S1 via X. If the trunk changes from the open state to the closed state in step 541, the process advances to step S31. Also step S
If the trunk is unlocked in 39,
That is, if the trunk is in an open state, step S4
Proceed to step 3 to restore the reception sensitivity of the control unit 29. Subsequently, the process returns to step S1 via X from step S43. Further, if the trunk request switch SWF is turned on in step S37, the process advances to step S45, where the card 21 and the control unit 2
Communicate with 9. 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 again via X. Also, step S4
7, if the card 21 is present in the predetermined area,
For example, if a driver carrying the card 21 is present near the trunk, the process advances to step S49 and the trunk is opened. Subsequently, from step S49, the process returns to step S1 via X.

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

The steering lock device 49 is equipped with accessories such as key cylinders (not shown) sequentially starting from the lock (LOCK) position.
(ACC) position, ON (ON) position, start (S)
Knob switch 49 for rotating to the TART) position
a, and an operation knob 49b for releasing the restriction on the locked state of the steering wheel. The knob switch 49a includes a key request switch SWG and an ignition switch SWD.
When a is pressed, the key request switch SWG is activated, and when the knob switch 49a is rotated, the ignition switch SWD is activated.

In step S201, communication with the card 21 described above is performed by pushing the operation knob while pressing the knob switch 49a. That is, the key request switch SWG is turned on by pushing the knob switch 49a. At this time, as shown in step S203, if the knob switch 49a or the operating knob 49b is operated due to a child's mischief or the like, the knob switch 49a cannot be rotated because the operating procedure is not well understood. Further, as shown in step S205, if the driver does not carry the card 21, the operation knob 49b cannot be pushed in because the encrypted information is not verified as described above, and the rotation of the knob switch 49g is prohibited. .

Also, when the knob switch 49a is pushed in, the card 21
If the driver is carrying the button, the operating knob 49b can be pushed in as shown in step S207, and by pushing in the operating knob 49b, the knob switch 49
a can be selected or rotated to the accessory (ACC) position. Next, as shown in step S209, start from the accessory (ACC) position (
Since it can be freely rotated to the START position, the engine can be started.

When the engine starts, the knob switch 49a automatically returns to the ON position as shown in step 5211.

Next, in step S213, when the door is closed from the open state, it is detected whether the card 21 is present in a predetermined area. If the driver does not carry the card 21 at this time, a warning is given to the effect that the card 21 does not exist, as shown in step 5215.

Next, when driving the vehicle is finished and the engine is stopped, start (STA) is performed as shown in step S217.
The knob switch 49a can be freely rotated from the RT) position to the accessory (ACC) position W, and the engine can be stopped by rotating the knob switch 49M to the accessory (ACC) position. . Next, as shown in step S219, the knob switch 49a is
If the door is opened while the steering wheel is rotated to the accessory (ACC) position, a warning will be issued that the steering wheel has been forgotten to be locked.

When locking the steering wheel, step S2
As shown in 21, the knob switch 49a is an accessory (
This knob switch 49 is in the ACC) position.
Push in the operation knob 49b while pushing in g. At this time, as shown in step -8223, if the driver does not carry the card 21, the operating knob 49b cannot be pushed in, and a warning is issued that the card 21 is not present. Further, as shown in step S225, if the vehicle is an automatic (A/T) vehicle and the shift lever is located outside the parking range, the operation knob 49b is not unlocked. Similarly, as shown in step S227, if the vehicle is not an automatic (A/T) vehicle and n vehicles are running, the operation knob 49t17) will not be unlocked. Further, as shown in step S229, if the driver carries the card 21 and the vehicle is stopped, the driver can push in the operating knob 49b and turn the knob switch 49a to the LOCK position.

As described above, the rotation position for rotating the knob switch 49a is the lock (LOC) for locking the steering wheel.
K) position, the position of the accessory (ACC) that can operate the air conditioner, sound system, etc., the ON position which is the rotation position when the vehicle is running, and the start (ON) position when starting the engine. Since the configuration is such that the knob switch 49a is rotated from the ON position to the accessory (ACC) position after driving the vehicle, the sound device etc. will not operate. This allows the driver to reliably turn the knob switch to the LOCK position next to the accessory (ACC) to prevent forgetting to lock the steering wheel.

[Effects of the Invention] As explained above, according to the present invention, when the opening/closing of a vehicle door is detected, processing related to determining whether or not a transmitting means is present is performed, so that the driver can It is possible to reliably prevent passengers from getting off the train without carrying their cards.

[Brief explanation of the drawing]

Fig. 1 is a complaint response diagram, Fig. 2 is a block diagram showing an embodiment of the present invention, Fig. 3 is a flowchart showing the operation of the embodiment shown in Fig. 2, and Fig. 4 is a steering lock. FIG. 3 is an explanatory diagram showing the operation of the device. 1... Detection means 3... Transmission means 5... Judgment means 7... Notification means 9 - Activation means another transmission means = 21 - Judgment means Day Notification means Detection means Day Activation means Fig. 1

Claims (1)

[Claims] Detecting means for detecting opening and closing of a vehicle door; Portable transmitting means capable of transmitting specific encrypted information; Receiving the encrypted information transmitted from the transmitting means; determining means for determining the presence or absence of the transmitting means based on the determination; and notifying means for notifying the absence of the transmitting means when the determining means determines the absence of the transmitting means; A keyless control device for a vehicle, comprising: activation means that activates processing when at least opening/closing of a door of the vehicle is detected.