JPH10102860A - Burglar preventing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an adverse influence from being exercised on one system, when the other system is failed in operation by a method wherein different control units are respectively provided to an S/L system and a burglar system. SOLUTION: An S/L system is provided to lock an on-off body, provided at a car body, in a closing position, and restrict a locking mechanism effecting unlocking to a locking state. Further, a burglar system is provided to detect that either of on-off bodies are brought into an opening state without effecting given opening operation in the case when all the on-off bodies have been brought into a locking state, and sound an alarm. Control units 30 and 40 for the S/L system and the burglar system are provided with determination parts 30a and 40a to determine that the other system has failed in operation. When determination of a trouble is effected, the operation state of the other system is released. This constitution prevents an advise influence from being exercised on the other system when one system has failed in operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-theft device for a vehicle, and more particularly to a locking and restraining system for locking a locking mechanism for locking and unlocking an opening and closing body such as a door and a trunk lid of a vehicle in a closed position. And a burglar alarm system that, when all of the opening / closing members are locked, detects a state in which one of the opening / closing members is opened without performing a predetermined opening operation and issues an alarm. The present invention relates to an anti-theft device for a vehicle provided.

[0002]

2. Description of the Related Art A key cylinder is provided in a door of a vehicle. When a key plate inserted into the key cylinder is operated to a lock position, the door is locked in a closed position, and, for example, an inner lock knob is moved to a vehicle interior. When operated from, the locked state of the door is released.

Therefore, even if the door or the like is locked, a thief breaks the door glass or inserts a metal rod or the like from the gap between the door and the door glass to illegally operate the inner lock knob. It is possible to open the door, etc., and suffer theft damage.To prevent this, the locking mechanism is restrained in the locked state by a predetermined operation of the key plate inserted in the key cylinder, Various door lock devices have been proposed that include a lock and restraint system that disables an unlocking operation using an inner lock knob.

In this specification, the term "locking constraint" is called "super lock" and is abbreviated as "S / L". In addition, the normal locked state is called "normal lock" and distinguished, and is abbreviated as "N / L". Further, the unlock is abbreviated as “U / L”.

In addition, when a secure locking operation of an opening / closing body such as a door, a trunk lid, and a hood of an engine room when leaving the vehicle is detected, the operating state is set after a predetermined time,
Various theft alarm (hereinafter referred to as "burglar") systems have been proposed in which an alarm is issued immediately upon destruction of a door key cylinder or opening of one of the opening and closing members without a predetermined reset operation being performed. A vehicle anti-theft device having both an L system and a bar graph system is disclosed in, for example, Japanese Patent Application Laid-Open No. Sho 62-199555.

[0006]

However, in a conventional vehicle anti-theft device having both an S / L system and a bar graph system, both systems are controlled by a common control unit. If the system fails, both systems fail, and in that case, there is a problem that the anti-theft function cannot be performed even though the two anti-theft systems are provided.

Further, even if both systems do not fail, there is a possibility that one fail state may have an adverse effect on the other system. For example, if the S / L system is out of order, the alarm device in the bar graph system will sound off, or if the bar graph system is out of order, the S / L state of the door lock mechanism cannot be released, and the occupant will not be able to release the vehicle. The problem is that they are trapped indoors.

In view of the above-mentioned circumstances, the present invention controls the S / L system and the bugler system individually while cooperating the two systems to change the set state of the failed system by the other system. An object of the present invention is to provide a vehicle anti-theft device that can be released.

[0009]

According to the first aspect of the present invention, there is provided an S / L system that locks a locking mechanism that locks and unlocks an opening / closing body provided on a vehicle body to a closed position,
A vehicle equipped with a bar graph system that, when all of the opening and closing members are in a locked state, detects a state where any of the opening and closing members has been opened without performing a predetermined opening operation and issues an alarm. In the anti-theft device of the present invention, the S / L system and the bugler system each have a separate control unit, and each control unit has a judgment means for judging that the other system has failed, and a failure judgment by this judgment means. Output means for outputting a release signal for releasing the operating state to the other system.

In this case, the control unit of the Burglar system can be provided with an output means for outputting a U / L signal for releasing the S / L state to the S / L system when the S / L system fails. (Claim 2) or S / L
The control unit of the system may be provided with an output means for outputting a release signal for releasing the theft detection state to the bar graph system when the bar graph system breaks down.

According to a fourth aspect of the present invention, there is provided an S / L system that locks a locking mechanism for locking and unlocking an opening / closing body provided on a vehicle body to a closed position, and that all of the opening / closing body are locked. A vehicle anti-theft device having a bar graph system for detecting a state in which one of the opening and closing members has been opened without performing a predetermined opening operation and issuing an alarm, The / L system and the Burglar system each have a separate control unit, and when one system is activated, the other system is also activated.

According to a fifth aspect of the present invention, there is provided an S / L system in which a locking mechanism for locking and unlocking an opening / closing body provided on a vehicle body to a closed position is locked, and all of the opening / closing body are locked. A burglar system that issues an alarm when one of the opening and closing members is opened without performing a predetermined opening operation when the opening / closing member is in the S / L system. Has been activated,
It is characterized by comprising a single display means for displaying that the bar graph system has been activated.

In this case, the display mode of the display means may be different between when the S / L system is activated and when the bar graph system is activated (claim 6), or when one of the systems is activated. The display mode of the display means may be made different between when and when both systems are operating (claim 7).

[0014]

According to the first aspect of the present invention, S /
Since the L system and the bugler system each have separate control units, if one system fails, it may adversely affect the other system, or the other system may also fail, and the two systems are stolen. The problem that the anti-theft function cannot be performed while the anti-theft system is provided can be solved.

Further, the control unit of the other system outputs a signal for canceling the operation state of the one system even if one of the systems fails and its control state is disturbed. Thus, runaway of the system can be prevented.

According to the invention described in claim 2, S / L
When the system breaks down, a signal for releasing the S / L state is output from the control unit of the Burglar system to the S / L system.
The occupant can be prevented from being trapped in the passenger compartment.

According to the third aspect of the present invention, when the Burglar system fails, the control unit of the S / L system outputs a signal for canceling the theft detection state to the Burglar system. It is possible to prevent the alarm device of the laser system from being released.

According to the fourth aspect of the present invention, when one system is activated, the other system is also activated, so that the anti-theft performance is improved and
The trouble of setting both systems individually can be saved.

According to the invention described in claim 5, S / L
A single indicator is provided to indicate that the system has been activated and that the bargra system has been activated, so that it is easy to indicate that at least one system has been activated. Can be recognized.

According to the invention described in claim 6, the S / L
When the system is operating and when the Burglar system is operating,
Since the display mode of the display means is different, it is possible to clearly and easily recognize which system has been activated.

According to the seventh aspect of the present invention, the display mode on the display means differs between when one system is operating and when both systems are operating. It is possible to clearly recognize the difference in the effectiveness of the anti-theft function from the time when the system is operated.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a system block diagram of an embodiment of a vehicle antitheft device according to the present invention. The antitheft device according to the present embodiment includes an S / L control unit 30 that controls an actuator unit 15 that operates a door locking mechanism, and that when one of the doors is locked, one of the doors is opened at a predetermined position. A bar graph control unit 40 is provided to detect an open state without operation and generate an alarm when the open state is detected.

Each of the bar graph control unit 40 and the S / L control unit 30 has a determination unit 40a, 30a for determining the operation state of the control unit of the other party.
Signal lines 41 and 42 for mutual communication are connected between each of the determination units 40a and 30a and the control unit of the other party.

Output line 4 of Burglar control unit 40
3 and between the battery power source (+ B), the excitation coil of the relay RL ₄ having a normally open contact is connected, the relay R
When L ₄ is energized by Bagura control unit 40, battery power (+ B) is horn 4 that contacts closed
4 to generate an alarm sound. Further, to the output line 43, with the contacts of the relay RL ₅ having a normally closed contact is connected, the relay R
Excitation coil of which L ₅ is connected between the output line 45 and the battery power of S / L control unit 30 (+ B), when the relay RL ₅ is excited by the S / L control unit 30, the contact is opened Thus, the output line 43 is shut off, and the operation of the horn 44 is stopped.

On the other hand, an exciting coil of a relay RL ₆ having a switching contact is connected between the output line 46 of the bugler control unit 40 and the battery power supply (+ B), and the relay RL ₆ is connected to the battery power supply. Fixed contact a
And a U / L output terminal of the S / L control unit 30 (S / L
A fixed contact b connected to a terminal connected to a battery power supply by U / L output from the CPU of the control unit 30 (to be described later), and an actuator unit 1 of the door lock device
And a movable contact c connected to one power supply terminal of the motor M group of No. 5.

When the relay RL ₆ is in the non-excited state, the movable contact c is connected to the fixed contact b on the U / L output terminal side as shown in FIG. Although the power supply terminal is connected to the U / L output terminals, the relay RL ₆ is excited by Bagura control unit 40, the movable contact c is connected to a fixed contact a of the battery power supply side, the motor of the actuator unit 15 One power supply terminal of the M group is connected to a battery power supply, the actuator unit 15 is driven to the U / L position, and the door locking mechanism is unlocked.

Further, the Burglar control unit 40 and the S / L
The control unit 30 is connected to a common indicator 25 that displays the set state of both.

FIG. 2 is a block diagram schematically showing the overall configuration of Berg La system, the system includes an ignition switch SW _4, when the engine key keyless switch SW ₅ (an ignition key cylinder inserted O
When at least one of the switches (the switch to be N) is ON, it is in a released (non-operating) state.

In this Burglar system, an ultrasonic sensor (intrusion detection sensor) 47 is provided in a room lamp provided at the center of the ceiling of the passenger compartment.
Has a function of radiating ultrasonic waves evenly over the entire area of the vehicle interior and receiving reflected waves to detect an intruder in the vehicle interior. The alarm means 50 is provided with the horn 44.
And a cut switch 48 and a flasher light 49 for cutting off the power supply to the starter of the engine.

The Burglar control unit 40 includes an ignition switch SW ₄ , a keyless switch SW ₅ ,
Door switch SW ₆ provided for each door of the vehicle body (plural)
Signals are input from key detecting means 51 for detecting the use of a key of a door key cylinder for door locking, and lock detecting means 52 for detecting locking by a manual lock knob associated with the locking means.

The Burglar control unit 40 includes an initial state setting section 53 for entering an alert state, an alert preparation section 54, an alert state setting section 55 for creating an alert state, an alarm control means 56 for activating the alarm means 50, and S / L. A determining unit 40a for determining the state of the control system;
Upon determining a failure of the L system, switching the relay contact to supply an exciting current to the relay RL _6, is constituted by a U / L signal output section 40b such that the S / L system U / L state.

A part of the output line of the alert state setting unit 55 is connected to the above-described ultrasonic sensor 47, and an ON command signal for operating the ultrasonic sensor 47 is supplied from the alert state setting unit 55. It has become so.

[0034] The initial state setting unit 53, the initial and both OFF signal of the ignition switch SW ₄ and keyless switch SW _5, receives the OFF signal of the door switch SW ₆ by the door is closed, the entire system a state, then returned to the release state receives an oN signal from at least one of the ignition switch SW ₄ and keyless switch SW _5. Upon receiving the signal indicating that all the doors are locked from the lock detection means 52, the alert preparation unit 54 receiving the initial signal sets the system to the alert preparation state, and when the time set by the timer 57 has elapsed since that time, The alert state setting unit 55 turns on the ultrasonic sensor 47
A signal is supplied to put the system on alert.

The alarm control means 56 activates the alarm means 50 when the ON signal of the door switch SW ₆ is generated due to the opening of the door or when the ultrasonic sensor 47 detects an intruder into the vehicle interior. To generate an alarm.
Between the alarm control means 56 and the alarm means 50, the above-mentioned relay RL operated by the S / L control unit 30 is provided.
₅ is interposed, and the determination unit 30a of the S / L control unit 30
Detects the failure of the Burglar system, the relay RL ₅
Is activated, the operation of the alarm means 50 is stopped.

When the determination unit 40a determines that the S / L system is in the S / L state when the present system is in the initial state, the determination unit 40a sends a signal to the warning state setting unit 55, and thereby the warning state is set. The state setting unit 55 sets the present system in the alert state.

Next, the configuration and operation of the S / L system will be described.

FIG. 3 is a block diagram conceptually showing the configuration of an embodiment of the S / L system. FIG. 4 is a diagram showing a key cylinder switch provided on a key cylinder attached to a door on the driver's seat side. FIG. 5 is a schematic view of a door lock device attached to a door on the driver's seat side.

The key cylinder 1 of a door of the driver's seat side shown in FIG. 3 is provided with a key cylinder switch SW ₁ having the configuration as shown in FIG. 4, the key plate key cylinder 1 is to be inserted thereto ( the illustration is omitted), the locking position together with the movable contact 4a of the key cylinder switch SW ₁ from the neutral position a B or unlocked position C
The arm 1a (FIG. 5) attached to the key cylinder 1 is connected to the key cylinder 1 via the rod 2 as shown in FIG.
The lock link 3 is connected to the key cylinder 1 at the lock position (B).
Is rotated to the lock position along with the
The key cylinder 1 is turned to the unlock position as the key cylinder 1 is turned to the unlock position (C position).

As shown in FIG. 4, the key cylinder switch SW ₁ has a rotating shaft 5 a pivotally supported by the substrate 5 so as to be able to rotate integrally with the key cylinder 1, and is fixed to the rotating shaft 5 a. Movable contact piece 4a, fixed contact pieces 4b and 4c in the form of arcs fixed on the substrate 5, and a ground contact piece 4d. One end of the movable contact piece 4a is always at the ground contact point 4d. Is in sliding contact. One fixed contact piece 4b contacts the other end of the movable contact piece 4a when the key cylinder 1 is rotated to the lock position B, and the other fixed contact piece 4c turns the key cylinder 1 to the unlock position C. When it is moved, it comes into contact with the other end of the movable contact piece 4a.

The fixed contact 4c is connected directly to the fixed contact 4b via the resistor R to the terminal 20 of the S / L control unit 30 shown in FIG. 6, and the movable contact 4a is connected to the terminal 20 shown in FIG. Since nothing is connected to the terminal 20 when in the neutral position, a predetermined voltage value is maintained. However, when the movable contact piece 4a comes into contact with the lock-side fixed contact piece 4b, the movable contact piece 4a is grounded via the resistor R. When the first voltage value corresponding to the lock signal is generated and the movable contact piece 4a comes into contact with the fixed contact piece 4c on the unlock side, the second voltage value corresponding to the unlock signal is generated by being grounded.

The door lock device shown in FIG. 5 has a latch body 6 provided with the lock link 3 and the release link 7 so as to be swingable. Rods 8 and 9 are provided at both ends of the release link 7, respectively. The outer handle 10 and the inner handle 11 of the door are connected via the door, and the release link 7 is connected to the idle swing mechanism 1 provided in the latch body 6.
It is linked to a claw lever (release member) 13 through the second lever 2. When the lock link 3 is in the locked position, the swing mechanism 12 releases the release link 7 and the claw lever 13.
And the outer handle 10 and the inner handle 11 are swung.

The operation of each element constituting the door lock device is the same as that of the existing door lock device.
The detailed description is omitted.

Reference numeral 15 denotes an actuator unit, which is an S / L actuator 17
An idle swing mechanism 18 driven by the S / L actuator 17 and a power door lock actuator 2
1 and built-in. The actuator unit 15 is connected to the inner lock knob 19 via the rod 14a.
, And a lever 23 connected to the lock link 3 via a rod 14b so as to be swingable, and a shaft 22 rotated by the lever 22 is provided.
The idle swing mechanism 18 is interposed between a and the shaft 23a rotated by the lever 23.

In the S / L state, the idling mechanism 18
Lock link 3 and inner lock knob 1 in lock position
9, ie the rod 14a, the lever 2
To cut off the connection via 2, 23 and rod 14b,
Even if the inner lock knob 19 is operated, the inner lock knob 19 is swung so that the unlock operation by the inner lock knob 19 is disabled.

[0046] Whether the lock link of the door of the driver's seat 3 is in or unlock position in the locked position, but is detected by the lock link switch SW ₂ which is actuated in response to movement of the lock link 3, this Switch SW ₂
Are provided in the actuator unit 15.
Also within the actuator unit 15, as will be described later, is Suichi SW ₃ switched switch the motor circuit is provided in association with the operation of the actuator unit 15.

The power door lock actuator 21 provided in the actuator unit 15 locks the other doors simultaneously by a door lock operation of the key cylinder 1 of the driver's seat door. The motor that operates the lock actuator 21 can also serve as the motor that operates the S / L actuator 17.

Although the S / L actuator 17, the idle swing mechanism 18 and the power door lock actuator 21 are not shown in FIG. 5, the S / L actuator and the idle swing mechanism attached thereto are described in, for example, 62-199555 and the like, and a detailed description thereof will be omitted.

FIG. 6 is a diagram showing a configuration of an electric circuit of the anti-theft device according to the present invention.

The microcomputer 31 mounted on the S / L control unit 30 has an ignition key switch SW ₄ in addition to an input port to which signals from the key cylinder switch SW ₁ and the lock link switch SW ₂ are input. includes an input port to which signals representative of the state of the Burg La system from signals and Bagura control unit 40 from the keyless switch SW ₅ and the door switch SW ₆ are input. The microcomputer 31 operates an output port for outputting a U / L command signal, an N / L command signal, and an S / L command signal, respectively, and an indicator 25 for indicating that the S / L state has been attained. an output port for, and an output port for outputting a signal for operating the relay RL ₅ to Bagura control unit 40.

Further, on the S / L control unit 30,
A relay RL ₁ excited by U / L command signal outputted from the microcomputer 31, a relay RL ₂ which is energized by the N / L command signal, and a relay RL ₃ excited by S / L instruction signal provided Have been. These three relays RL ₁ ~RL ₃ includes a fixed contact a connected to a battery power supply 12 volt, a fixed contact b connected to ground, and a movable contact c connected to the output terminal of the circuit board 30 The movable contact c is connected to the fixed contact b on the ground side in a non-excited state, but the movable contact c is connected to the fixed contact a on the battery power supply when excited.

The actuator 1 of the S / L mechanism 16
A changeover switch SW ₃ that is switched in accordance with the operation of No. 7
Is a fixed contact a connected to the N / L output terminal, a fixed contact b connected to the S / L output terminal, and a movable contact connected to one terminal of the motor M in the U / L state shown. And a contact c. The other terminal of the motor M, there is a case to be excited by Bagura control unit 40, normally connected to the U / L output terminal through the contact point c, b of the relay RL ₆ described above in the non-excited state I have.

In this embodiment, the key cylinder 1
By rotating the key plate from the neutral position A to the locked position B plugged in, relay RL ₂ is energized it is output N / L instruction signal from the microcomputer 31, the power supply voltage to the N / L output terminal application Is done. Further, the key plate is moved to the neutral position A within a set time (for example, 3 seconds).
, From the microcomputer 31 to the lock position B twice, an S / L command signal is output from the microcomputer 31 to excite the relay RL ₃ , and the S / L output terminal T ₃
Is supplied with a power supply voltage. Further, by rotating the key plate from the neutral position A to the unlock position C, the relay RL ₁ is energized U / L instruction signal is outputted from the microcomputer 31, the power supply voltage to the U / L output terminal application Is done.

Next, U / L, N / L , the operation of the switch SW ₃ switched when migrating from each state of the S / L to other states will be described.

(1) From U / L state to N / L state From the U / L state shown in FIG.
From N / L when a command signal is output relay RL ₂ is energized, the fixed contact a of the switch SW ₃ current from N / L output terminals, the motor M, U / L output terminals and the relay RL
_It flows to the ground side for a predetermined short time through _one fixed contact b. This and briefly turning the predetermined motor M, for example, in the positive direction, the power door lock actuator 21 is driven, with all the doors will be locked to the N / L state, the movable contact of the switch SW ₃ c is switched to the fixed contact b side.

(2) From the N / L state to the S / L state From the N / L state, the microcomputer 31
When / L instruction signal is output relay RL ₃ is energized, the fixed contact b of the current S / L switch SW ₃ from the output terminal, the motor M, a fixed contact b of the U / L output terminals and the relay RL ₁ Then, it flows to the ground side for a predetermined short time. As a result, the motor M further rotates in the forward direction for a predetermined short time, the S / L actuator 17 is driven, the idling mechanism 18 is operated, the S / L state is established, and the indicator 25 is turned on for a predetermined time.

(3) From N / L state to U / L state From the N / L state, the microcomputer 31
/ L instruction signal is output when the relay RL ₁ is energized, the motor M current from U / L output terminals, the switch SW
_{The current} flows to the ground through the fixed contact b of No. ₃ , the S / L output terminal and the fixed contact b of the relay RL3 for a predetermined short time. As a result, the motor M rotates in the reverse direction for a predetermined short time, the power door lock actuator 21 is driven in the release direction, and all the doors are unlocked and the U / L
With a state, the movable contact c of the switch SW ₃ is returned to the fixed contact a.

(4) From S / L state to U / L state From the S / L state, the microcomputer 31
/ L instruction signal is output when the relay RL ₁ is energized, the motor M current from U / L output terminals, the switch SW
₃ fixed contact b, S / L output terminal and relay RL ₃
Flows to the ground side for a longer time than the above through the fixed contact b. As a result, the motor M rotates in the reverse direction for a predetermined long time, the S / L actuator 17 is driven in the release direction, and the idling mechanism 18 is made inoperative. The power door lock actuator 21 is driven in the release direction, it becomes all the locks are released U / L state of the door, the movable contact c is a fixed contact a of the switch SW ₃
Return to the side.

[0059] Further, when the relay RL ₆ excitation current from U / L signal output section 40b of the Bagura control unit 40 in the S / L state is supplied to the relay RL ₆ is energized, current contact of the relay RL ₆ Motor M through a and c
To be supplied through the fixed contact b of the fixed contact b ,, S / L output terminals and the relay RL ₃ switches SW ₃ flows to the ground side, the U / L state.

FIG. 7 is a timing chart showing the operation of the embodiment of the S / L system.

At time t1, the key cylinder switch S
When the lock signal from the W ₁ is outputted, a predetermined pulse width T
An N / L signal output having a value of 1 is generated, the power door lock actuator 21 (FIG. 3) is operated to enter the N / L state, and the rising edge E1 of the N / L signal is generated.
, The set time is set to a predetermined time T3 (for example, 3 seconds).
Is set. At time t2 before the set time T3 of the timer elapses, the key plate inserted into the key cylinder 1 is again operated to the lock position to generate the N / L signal output again, so that the S / L signal output is generated. Then, the S / L actuator 17 (FIG. 3) is operated to shift to the S / L state, and the indicator 25 indicating that the S / L state has been reached is displayed for the set time T4 (for example, 3 seconds). It is lit for a while. Moreover, by operating the key cylinder switch SW ₁ to the unlocked position in N / L state and S / L state,
A U / L signal output having a predetermined pulse width T1 is generated,
Return to U / L state.

When the S / L state is shifted to the S / L state in a very short time after the N / L state, the S / L actuator 17 may malfunction.
An OFF time of time T2 is provided after time T1, and even when the key plate is operated a plurality of times in a very short time, the N / L signal output is at least the OFF time of T2 between adjacent pulses. (ON prohibition time) intervenes. The times T1 and T2 are determined according to the performance of the S / L actuator 17.

As described above, when the key plate inserted into the key cylinder 1 is operated to the lock position a set number of times, for example, twice, within the set time T1 of the timer, the state shifts to the S / L state. Contrary to S / L
Transition to the state can be prevented.

The timer may start counting from the falling edge E2 of the N / L signal. If the key plate is operated to the lock position more than the set number of times (two times in FIG. 7) within the set time T3 of the timer, the S / L state may be maintained. On the contrary, the number of times exceeding the set number of times (for example, 3
It is also possible to return to the U / L state immediately after operating the lock position. Then, when the S / L state is erroneously set, the S / L state can be immediately released.

Alternatively, irrespective of the number of times the key plate is operated, if the key plate is again operated to the lock position within a predetermined time after being operated to the lock position, S /
An L signal output may be generated.

Further, the S / L system can be set in the S / L state by a lock signal from a so-called keyless entry unit which can lock and unlock the door locking mechanism by remote control operation from a position away from the vehicle. It is also possible to configure to make the transition. Although illustration of the configuration and detailed description of the configuration in this case are omitted, the N / L state is achieved by pressing the lock button provided on the remote control operating member once, and the S / L is pressed by pressing the set number of times within a predetermined time.
What is necessary is just to comprise so that it may shift to a state.

As described above, the operation can be shifted to the S / L state by both the operation of the key cylinder 1 by the key plate and the operation from the keyless entry, so that it is extremely convenient in practical use. Becomes By providing the timer time T3, after the timer time elapses, even if the lock button of the remote control operating member is erroneously pressed in the N / L state (contrary to the driver's intention), the S / L state is set. The transition can be prevented.

FIG. 8 is a flowchart schematically showing a processing routine corresponding to FIG. S represents each step.

[0069] First, the key cylinder switch SW ₁ it is determined whether the change in the lock (S1), if changed to the lock (S1: YES), starts a T3 timer (S2), a key cylinder switch SW _While the number of times the lock has been changed to ₁ is less than the set number of times (S3: NO, once when the set number is two, once and once when the set number is three), the key cylinder switch SW Increment the counter that counts the number of times ₁ has changed to lock (S
4) Output an N / L signal (S5).

[0070] When the key cylinder switch SW ₁ is determined to have changed to the lock or the set number (S3: YE
S) If the T3 timer is within the operating time (S6: YES), the N / L signal and the S / L signal are output simultaneously (S7, S8).

Next, the cooperative operation of the S / L control unit 30 and the bugler control unit 40 will be described.

FIG. 9 is a flowchart of a bug-grass determination process executed by the microcomputer 31 of the S / L control unit 30.

First, the state of the Burglar system is detected (S11).
A signal input to the control unit 30 is detected (S1
2). Then, it is determined whether or not the state of the bar graph system matches the input signal to the S / L control unit 30 (S13). If they match (S13: YES), it is determined that the bar graph system is normal. (S14) If they do not match (S13: NO), it is determined that the Burglar system has failed, and a predetermined process in the failure mode is executed (S1).
5), for example by exciting the relay RL ₅ to the alarm means 50 inoperative.

Here, the Burglar failure mode refers to the operation state of the Burglar system.
7 means that the alarm means 50 is turned on while the detection sensor such as the door switch SW ₆ is off. Also, looking at the Bagura released state, refer to the like can remain or not released Bagura state for keyless switch SW ₅ is ON, the warning means 50 is operated for a long time.

FIG. 10 is a flowchart of the S / L determination process executed by the bug control unit 40.

First, the state of the S / L system is detected (S
21) Then, a signal input from the S / L control unit 30 to the Burglar control unit 40 is detected (S22).
Then, it is determined whether or not the state of the S / L system matches the input signal to the Burglar control unit 40 (S2).
3) If they match (S23: YES), the S / L system is determined to be normal (S24), but if they do not match (S2).
3: NO), it executes a predetermined processing corresponding to the S / L failure mode (S25), for example by exciting the relay RL ₆ S /
Put the L system in the U / L state.

[0077] Here, the S / L failure mode, even if U / L signal is generated by operation of the key cylinder switch SW _1, or a impossible unlocking of the locking mechanism, the first key cylinder switch SW ₁ The S / L state is set by the second N / L operation, or the key cylinder switch S
The first of the N / L operated by a locking mechanism of W ₁ refers to the fact that is or've been unlocked.

FIG. 11 is a flowchart of a process for setting the Burglar system according to a set signal from the S / L control unit 30 side.

First, it is determined whether or not the S / L signal has been output (S31), and if the S / L signal has been output (S3).
1: YES), it is determined whether or not the bar graph system is set (S32), and if it is not set (S32).
32: NO), and outputs a bargrass set signal to the bargra control unit 40 (S33).

FIG. 12 is a flowchart of a process for setting the S / L system in accordance with the set signal from the Burglar control unit 40 side.

First, it is determined whether or not a state of warning of a bug is detected (S31), and if a state of warning of a bug is determined (S31).
41: YES), it is determined whether or not the S / L system is set (S42), and if it is not set (S42).
42: NO), the S / L control unit 30
A signal is output (S43).

FIG. 13 is an explanatory diagram of a display method by the indicator 25 during the operation of the bugler and / or the S / L.

(1) When only the Burglar system is set to the Burglar alert state, the indicator 25 blinks from the point of setting and the hazard lamp blinks once.

(2) When only the S / L system is set to the S / L state, the indicator 25 is turned on and off for 3 seconds from the time of setting. Hazard lights do not flash.

(3) When both the bar graph system and the S / L system are set, the indicator 25 is first turned on for 3 seconds from the time of setting, then the indicator 25 flashes and the hazard lamp flashes once. I do.

By using such a display method, it is possible to clearly recognize the set state of both systems using a single indicator 25, and the indicator 25 constantly flashes in a bugler alert state. Therefore, it is also a psychological regulation for thieves.

[Brief description of the drawings]

FIG. 1 is a system block diagram of an embodiment of a vehicle antitheft device according to the present invention;

FIG. 2 is a block diagram showing a schematic configuration of a Burglar system in the vehicle antitheft device according to the present invention;

FIG. 3 is a block diagram showing a schematic configuration of a door lock device in the vehicle antitheft device according to the present invention;

FIG. 4 is a schematic diagram around a key cylinder switch provided on a key cylinder of a door.

FIG. 5 is a schematic diagram showing a mechanical configuration of a door lock device.

FIG. 6 is a schematic diagram of an electric circuit of the S / L system.

FIG. 7 is a timing chart showing conditions for shifting to an S / L state;

FIG. 8 is a flowchart of a processing routine corresponding to FIG. 7;

FIG. 9 is a flowchart showing a bug-grass determination process on the S / L control unit side;

FIG. 10 is a flowchart showing an S / L determination process on the side of the bug control unit;

FIG. 11 is a flowchart showing a burglar setting process on the S / L control unit side;

FIG. 12 is a flowchart showing an S / L setting process on the side of the bug control unit;

FIG. 13 is an explanatory diagram of a display method using an indicator at the time of operating a bar graph and / or operating an S / L.

[Explanation of symbols]

 Reference Signs List 1 door key cylinder 3 lock link 15 actuator unit 16 S / L mechanism 17 S / L actuator 18 idle swing mechanism 21 power door lock actuator 25 indicator 30 S / L control unit 40 bugler control unit 50 alarm means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI G08B 13/00 G08B 13/00 A 29/18 29/18 Z

Claims (7)

[Claims] A locking mechanism for locking a locking mechanism for locking and unlocking an opening / closing body provided on a vehicle body to a closed position and locking the locking mechanism in a locked state, and when all of the opening / closing bodies are locked, An anti-theft device for a vehicle, comprising: a burglar alarm system that detects a state in which one of the opening and closing bodies is opened without performing a predetermined opening operation and issues an alarm. The system includes separate control units, each of the control units has a determination unit that determines that the other system has failed, and the operating state of the other system is released based on the failure determination by the determination unit. And an output means for outputting a release signal for releasing the vehicle. 2. The control unit of the burglar alarm system is provided with output means for outputting a release signal for releasing the locked restraint state to the lock restraint system when the lock restraint system breaks down. The vehicle antitheft device according to claim 1, wherein 3. The control unit of the locking and restraining system is provided with output means for outputting a release signal for releasing the theft detection state to the theft alarm system when the theft alarm system breaks down. The vehicle antitheft device according to claim 1, wherein 4. A locking and restraining system for locking a locking mechanism for locking and unlocking an opening / closing body provided on a vehicle body to a closed position in a locked state, and when all of the opening / closing bodies are in a locked state. An anti-theft device for a vehicle, comprising: a burglar alarm system that detects a state in which one of the opening and closing bodies is opened without performing a predetermined opening operation and issues an alarm. Are controlled by separate control units, respectively, and when one of the locking and restraint system and the theft alarm system is activated, the other system is also activated. Vehicle anti-theft device. 5. A locking and restraining system for locking a locking mechanism for locking and unlocking an opening / closing body provided on a vehicle body to a closed position and locking the locking mechanism in a locked state. A burglar alarm system that detects a state in which one of the opening and closing bodies has been opened without performing a predetermined opening operation and issues an alarm, wherein the locking restraint system is activated. And a single display means for displaying that the burglar alarm system has been activated. 6. The anti-theft device for a vehicle according to claim 5, wherein a display mode of the display means is made different between when the locking and restraining system is activated and when the theft alarm system is activated. 7. The display mode of the display means is different between when one of the locking restraint system and the burglar alarm system is activated and when both systems are activated. Item 6. The vehicle antitheft device according to Item 5.