JP3445033B2 - Deadlock control device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a deadlock mechanism in addition to a normal door lock / unlock mechanism in order to protect a vehicle from theft. The present invention relates to a deadlock control device that locks to a deadlock. 2. Description of the Related Art A control circuit of a conventional deadlock control device according to this type of invention will be described with reference to FIG. That is, in the figure, reference numeral 1a denotes a first state switch which is turned on by a lock operation using a door key, and a signal generated by the switch is supplied to a signal processing circuit 5 described later after chattering noise is removed by a first low pass filter 2a. . Reference numeral 1b denotes a second state switch which is turned on by an unlocking operation using a key of a door, and a signal by the second state switch is turned on.
The chattering noise is removed by the low-pass filter 2b, and is supplied to a signal processing circuit 5 described later. An ignition switch 1c is turned on by operating a key switch for starting the engine of the vehicle. The signal from the ignition switch is used to remove chattering noise by a third low-pass filter 2c and is supplied to a signal processing circuit 5 described later. When the signal processing circuit 5 receives a signal from the first low-pass filter 2a, the signal processing circuit 5 supplies a lock current to a motor 7 via a door lock / unlock drive circuit 6 to cause the motor 7 to lock the door. A lock current is supplied to the motor 9 via the lock / unlock drive circuit 8 to operate (or lock) the deadlock mechanism. When the signal processing circuit 5 receives a signal from the second low-pass filter 2b, the signal processing circuit 5 generates a deadlock signal.
An unlock current (current in a direction opposite to the lock current for the motor 9) is supplied to the motor 9 via the unlock drive circuit 8, thereby releasing (or unlocking) the deadlock mechanism. An unlock current is supplied to the motor 7 via the lock drive circuit 6 (a current in a direction opposite to the lock current to the motor 7) to unlock the door. When the signal processing circuit 5 receives a signal from the third low-pass filter 2c, the signal processing circuit 5 supplies an unlock current to a motor 9 via a deadlock / unlock drive circuit 8 to provide a deadlock mechanism. Let me cancel. Next, the connection between the mechanical mechanism and the control circuit described with reference to FIG. 3 will be described with reference to FIG. 2, reference numeral 10 includes the first, second, and third low-pass filters 2a, 2b, and 2c shown in FIG. 3, a signal processing circuit 5, a door lock / unlock drive circuit 6, and a deadlock / unlock drive circuit 8. Control circuit. First, when the deadlock mechanism is not operating, that is, in FIG. 2, when the latch member 21a is not operating, or when the second rod 14 and the fifth rod 24 are connected, the door is closed. When the vehicle interior door lock knob 11 provided is pulled, the first rotating member 13 is rotated via the first rod 12, the second rod 14 is pulled upward, and the second rotating member 15 is rotated. , The lock / unlock mechanism 16 is operated. As a result, the door is unlocked. When the door lock knob 11 is pushed, the first turning member 13 is turned in the opposite direction via the first rod 12, the second rod 14 is pushed downward, and the second turning member is pushed. 15 is rotated, and the lock / unlock mechanism 16 is operated. As a result, the door is locked. At this time, in conjunction with the second rotating member 15, the third rod 17,
Third pivot member 18, fourth rod 19 and fourth pivot member 2
0 is rotated. Next, when the key is turned to the lock position by a key operation from the outside of the door of the vehicle, the third turning member 18 turns clockwise to push down the third rod 17, and the second turning member 15 is rotated to the left to operate the lock / unlock mechanism 16 to lock the door. At this time, the fourth rod 19 is pushed down and the fourth rotating member 2
0 is turned to the right, the first state switch 1a is turned on, a lock current is supplied from the control circuit 10 to the motor 7 constituting the lock / unlock actuator 22, and the door is locked. Thereafter, the lock current is also supplied to the motor 9 constituting the deadlock / unlock actuator 21, the latch member 21a operates, the second rod 14 and the fifth rod 24 are separated, and the vehicle interior door lock knob Even if 11 is pulled, the lock / unlock mechanism 16 becomes inoperable, and the lock is doubled. When the key is turned to the unlock position by the key operation in the opposite direction from the outside of the door, the third turning member 3 turns left and pushes up the third rod 17, thereby causing the second rod 17 to move upward.
By rotating the rotating member 15 rightward, the lock / unlock mechanism 16 is operated to unlock the door. At this time, the fourth rod 19 is pushed upward and the fourth rotating member 20 is rotated leftward to turn on the second state switch 1b, and thereafter the deadlock / unlock actuator 21 Motor 9 constituting
, The unlock current is supplied from the control circuit 10, that is, the latch member 21 a is not operated, the second rod 14 and the fifth rod 24 are connected, and thereafter, the motor constituting the lock / unlock actuator 22. 7 is also supplied with an unlock current from the control circuit 10, and the door is unlocked. When the ignition switch 1c is turned on by operating the key switch of the vehicle, the control circuit 10 sends the deadlock / unlock actuator 21
When the unlock current is supplied to the motor 9 constituting the vehicle, that is, when the latch member 21a is not operated and the second rod 14 and the fifth rod 24 are connected and the vehicle interior door lock knob 11 is pulled, the lock / unlock operation is performed. Lock mechanism 16
Are connected. [0014] As described above, the conventional deadlock control device operates the door lock knob so that a driver or the like tries to get out of the vehicle once the deadlock mechanism is operated. Even so, the mechanical mechanism is mechanically separated, so the deadlock mechanism must be released by regular key operation or key switch operation to start the engine. Therefore, when the engine is started by key switch operation, the battery voltage decreases with the start of the engine, and if the deadlock / unlock actuator or the deadlock / unlock drive circuit does not operate properly, There is a possibility that the driver or the like cannot get out of the vehicle except for unlocking the door by a proper key operation. Therefore, the present invention has been made in view of the above problems, and starts the engine even if the deadlock mechanism is activated for some reason after the occupant gets into the vehicle, for example, due to an erroneous operation. Accordingly, it is an object of the present invention to provide a device in which a deadlock mechanism is securely unlocked so that a driver or the like is not locked in a vehicle. A deadlock control device according to the present invention has a motor in which a door lock / unlock mechanism and a vehicle interior door lock knob are connected by idle swing means, and the idle swing mechanism is driven. In a deadlock control device including a deadlock mechanism and controlling the deadlock mechanism in a release direction when an ignition switch is turned on, a deadlock control device from when the ignition switch is turned on until the deadlock mechanism operates in the release direction. In between, a predetermined time required for the battery voltage to stabilize was provided. According to the present invention, the battery voltage can be stabilized even if the battery drops due to the start of the engine between the time when the ignition switch is turned on and the time when the deadlock mechanism operates in the release direction. By providing a predetermined time necessary for the activation, the deadlock / unlock actuator is normally driven after the battery voltage is stabilized, so that the operation is ensured. Next, an embodiment according to the present invention will be described.
In FIG. 1, components that are the same as or equivalent to those of the conventional configuration shown and described in FIG. 3 are given the same reference numerals and omitted, and only the functions of the different portions will be described below. That is, in FIG. 1, reference numeral 30 denotes a Zener diode for detecting a voltage, and an ignition switch 1
The voltage value of the battery BAT supplied by the ON operation of c is monitored. That is, when the battery voltage value exceeds the Zener voltage value of the Zener diode 30,
A signal for notifying that the power supply voltage value has reached a predetermined voltage is supplied to the signal processing circuit 5 '. The signal processing circuit 5 ′ has the following functions added to the signal processing circuit 5 in FIG. That is, the signal processing circuit 5 ′ receives the signal indicating the battery voltage value from the third low-pass filter 2 c and instructs the deadlock / unlock drive circuit 8 to supply an unlock current to the motor 9. In spite of this, when cranking or the like occurs due to engine start and the battery voltage decreases due to the cranking (that is, to a voltage at which the deadlock / unlock actuator or the deadlock / unlock drive circuit does not operate). When the voltage drops, the Zener diode 30 for voltage detection turns off the ignition switch 1c in spite of the on-state and inputs the ignition switch 1c to the third low-pass filter 2c.
c sends a signal indicating this to the signal processing circuit 5 '. The signal processing circuit 5 'receives this signal and determines that the deadlock mechanism has not been unlocked normally. Thereafter, when the battery voltage returns to a normal voltage (that is, a voltage at which the deadlock / unlock actuator 21 and the deadlock / unlock drive circuit 8 operate), the signal processing circuit 5 'is again activated. 3 receives a signal indicating that the battery voltage is normal from the low-pass filter 2c and instructs the deadlock / unlock drive circuit 8 to output a negative signal for supplying an unlock current to the motor 9 to deadlock. Unlock the mechanism. In the above-described embodiment, the deadlock mechanism is switched to the unlocked state after detecting that the battery voltage reaches the predetermined voltage. However, the engine speed and the L terminal voltage of the alternator are inputted to make a determination. Needless to say, it is possible to do so. As described above, according to the present invention, when the engine is started, the deadlock device can be securely unlocked, so that the driver is locked in the vehicle interior. The effect of not having any is exhibited.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit block diagram showing an embodiment of a deadlock control device according to the present invention. FIG. 2 is an explanatory diagram showing a door opening / closing mechanism operated by motors 7 and 9 of FIG. 1; FIG. 3 is a circuit block diagram of a conventional deadlock control device. [Description of Signs] 5, 5 'Signal Processing Circuit 30 Zener Diode 50 Center of Rotation

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 65/12-65/42 B60J 5/00 B60R 25/00

Claims (1)

(57) [Claim 1] A door lock / unlock mechanism and a vehicle interior door lock knob are connected by an idle swing means, and a dead lock mechanism having a motor for driving the idle swing mechanism is provided, and the ignition is provided. In a deadlock control device that controls the deadlock mechanism in a release direction when a switch is turned on, a battery voltage is stabilized between a time when the ignition switch is turned on and a time when the deadlock mechanism operates in a release direction. A deadlock control device provided with a predetermined time necessary for the deadlock control.