JP2001220932A - Door locking device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door locking device for a vehicle allowing door locking operation by means of a remote operation means, equipped with a door lock controlling means having no special independent receiving means to the door locking controlling means, and surely determining whether the door is locked by the remote operation means or not. SOLUTION: This door locking device is provided with the remote operation means, a switching means, a door locking mechanism for a vehicle, the controlling means, an alarming means, and a determining means. The determining means determines whether the door lock is released by means of the remote operation means or not from a detection result based on detection of a signal condition in the door locking mechanism and a signal condition in the switching means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a door lock device for a vehicle.

[0002]

2. Description of the Related Art As a door lock device for a vehicle, various keyless entry systems have been put to practical use in which a door lock operation of a vehicle can be performed using a remote control means even when a key is not carried.

[0003] Some conventional keyless entry systems include remote control means (or
Executing door lock (locking) by remote controller)
Alternatively, there is a door lock device for a vehicle (hereinafter, simply referred to as a door lock device) that assumes only a release operation as a regular procedure.

In this door lock device, a door lock operation signal (hereinafter referred to as an operation signal) is transmitted on the radio wave by a remote control means and propagated in the air, and a receiver installed on the vehicle receives the radio wave. , An operation signal is sent to the door lock control means of the door lock device, and the door lock control means controls the door lock mechanism (not shown) to execute or release the door lock.

In this door lock device, the door lock mechanism is unlocked only when a door lock release operation signal (hereinafter, release signal) is received among the operation signals. A door courtesy switch, an intrusion sensor, and the like are provided in the vehicle to detect the opening and closing of the door. When the opening and closing of the door are detected, a detection signal is sent to the door lock control means. If the door is opened by some other means while the release signal is not transmitted, an alarm operation can be performed based on the detection result by the door courtesy switch, the intrusion sensor, or the like.

Based on such a configuration, an alarm can be externally added to such a configuration, and the alarm can be operated in conjunction with the transmission of an operation signal by using the operation signal. Has been put to practical use. FIG. 2 is a block diagram showing a main configuration of a door lock device provided with such an alarm.

FIG. 2 shows a door lock control means 30 for controlling a door lock mechanism, an actuator 40 as a door lock mechanism, a switch means 50, a receiving device 20, and an alarm 72.
And the remote control means 10.

The actuator 40 actually locks or unlocks the door lock. The switch means 50 has a switch for manual operation, and sends an operation signal to the door lock control means by manual operation of the switch. The switch means 50 is
It may be provided so as to be linked to the operation of a conventional plug-in key.

As shown in the figure, the receiving device 20 and the door lock control means 30 are separate units, and both are connected by receiving device input / output lines (hereinafter, input / output lines) 21 and 22. . An external alarm 72 is connected to the input / output lines 21 and 22, and is configured to operate according to the signal state of the input / output line.

On the input / output line 21 or 22, for example, when the door lock is released, an operation signal having a negative voltage value is transmitted to the input / output line 21, while when the door lock is executed, the negative voltage is applied. An operation signal having a value is transmitted to the input / output line 22. When an operation signal is received from the remote operation means 10, the operation signal exists on any of the input / output lines. Thereafter, the operation signal is transmitted to the connection line 42 to the actuator 40.
Moreover, at this time, there is no operation signal on the connection line 52 to the switch means 50.

In this state, the alarm 72 is connected to the input / output line 21 and
It is assumed that the operation is performed corresponding to each of the combinations of the 22 voltage states. Only when the operation signal is a release signal, the door lock mechanism unlocks the lock device and stops supplying power to the alarm, so that the alarm does not sound. Then, the release operation other than when the release signal is received is assumed to be all irregular, and the state of energizing the alarm is maintained, and the opening of the door is detected by the door courtesy switch, the intrusion sensor, and the like described above. Then, in response to the detection signal, the detection signal is transmitted to the alarm and the alarm is sounded. Such a state in which the power supply to the alarm device is maintained is referred to as a warning mode.

Therefore, the alarm also sounds if the authorized vehicle owner forgets to operate the remote control means and releases the door lock. In each of the unlocked cases, only when the operation signal is the release signal, the door lock mechanism unlocks the lock device and stops supplying power to the alarm. At this time, it recognizes that the operation is a legitimate operation by the legitimate owner of the vehicle, and does not operate the alarm 72.

[0013]

However, in such a vehicle anti-theft device, as a basic configuration, the receiving device 20 is not an independent unit, but is integrated with the door lock control means 30, and the door lock control means 30 is integrated. There is a configuration in which a signal from the remote control means 10 is received by a part of the wiring inside.

FIG. 3 shows the configuration. In FIG. 3, there are no input / output lines 21 and 22 which can take out a signal for the alarm 72 as an output unlike the configuration shown in FIG. In FIG. 3, the function of receiving the operation signal from the remote control means is provided to a part of the wiring of the door lock control means 30, and the fact that it does not exist as an independent unit is schematically indicated by a broken line using reference numeral 39. Therefore, in the configuration shown in FIG.
Since the operation signal cannot be present alone, the state of the operation signal cannot be seen as described above for the purpose of controlling the operation of the alarm 72.

Therefore, in the configuration shown in FIG. 3, if an operation signal is to be detected using, for example, the wiring of the actuator 40, a radio wave from the remote operation means 10 is received from the alarm device 72 side. It is not possible to recognize the distinction between the door lock execution command and the door lock execution command by the switch means 50.

Further, the door lock can be released by using the switch means 50 even if it is not a regular operation.
That is, it is possible, for example, by operating the switch means after opening the key to enter the vehicle. In this way, the alarm 72 can be easily released by a third party such as a burglar. Therefore, there is a fatal problem that a burglar or the like can easily release the alert state of the vehicle door lock device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a structure in which a door lock operation can be performed by a remote control means and no independent receiving means is provided for the door lock control means. It is an object of the present invention to provide a vehicle door lock device having a door lock control means, which can reliably determine whether or not a door lock operation has been performed by a remote control means.

[0018]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a door lock device for a vehicle according to a first aspect of the present invention is a door for executing or releasing a door lock of a vehicle in response to a door lock operation signal. A lock mechanism, a switch for manual operation, and switch means for causing the door lock mechanism to execute or release the door lock when a manual operation is performed on the switch; and the door lock mechanism and the switch means are connected. A door lock control means for controlling a door lock mechanism; a remote control means for transmitting a door lock operation signal from a position distant from the vehicle; and an alarm means, and one of electric wirings inside the door lock control means. A door lock device for a vehicle, which receives a door lock operation signal from the remote control means, wherein the door lock control means and the door A signal state of a connection line with a lock mechanism and a signal state of a connection line between the door lock control means and the switch means are detected, and the presence or absence of a door lock operation by the remote control means is determined by a combination of the signal states. The warning means is provided with a discriminating means for outputting the discrimination result.

In the door lock operation by the remote control means,
Since the signal state is such that the operation signal has arrived at the connection line between the door lock control means and the door lock mechanism, the presence or absence of the door lock operation by the remote control means can be recognized by the combination of the detection results. Note that the signal state refers to a state of the presence or absence of an operation signal on the connection line.

In the present invention, the change of the door lock device for the vehicle itself can be made by simply using the wiring of the conventional door lock device and adding the discriminating means, and it is possible to reliably determine whether or not the door lock operation is performed by the remote control means. Can be determined.

According to a second aspect of the present invention, there is provided a door lock device for a vehicle, wherein a door lock release signal is transmitted as a negative voltage signal among the door lock operation signals, and the discriminating means includes a control means and a switch means. If the voltage value indicating the signal state of the connection line is positive or 0 and the voltage value indicating the signal state of the connection line between the control means and the door lock mechanism is negative, it is determined that the door lock release operation is performed by the remote control means. Then, the power supply to the alarm means is stopped so that the door lock release from the remote control means can be accurately and uniquely recognized by the combination of the voltage values only by a simple voltage comparison.

[0022]

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

Embodiment 1 FIG. 1 is a block diagram showing a configuration of a main part of a vehicle door lock device according to an embodiment of the present invention. The door lock device for a vehicle according to the present invention detects the voltage of the open-side wiring 41 of the actuator 40 as the door lock mechanism and the voltage of the unlock wire 51 of the switch means 50,
Based on the combination of the detection results, the presence / absence of the door lock operation by the remote operation means 10 is determined, and the operation of the alarm means 70 is determined. In the present embodiment, the door lock operation by the remote control means is recognized as a door lock operation by a legitimate vehicle owner. The details will be described below.

The door lock device for a vehicle according to the present invention includes a remote control means 70, a door lock control means 30, an alarm means 70, and a discriminating means 60 which will be described later in detail. And the alarm means 70 is connected to the determination means 60,
The operation is determined by receiving the output from the determination means 60.

The door lock control means 30 controls the execution or release of the door lock based on the operation signal. As shown in FIG. 1, a door lock mechanism 40 and a switch means 50 are connected to the door lock control means 30 by connection lines, respectively, and are controlled by the door lock control means 30 as shown in FIG.

The door lock mechanism 40 receives an operation signal and executes or releases the door lock. Switch means 50
Is provided with a switch for manual operation, and causes the door lock mechanism to execute or release the door lock in response to the manual operation. Each connection line is, from the functional aspect relating to the transmission of the door lock release signal, the unlock line 52 for transmitting the door lock release signal among the connection lines of the switch means 50, the other is the lock line 51, and the actuator 40 is One of the connection lines is referred to as open-side wiring 41, and the other is referred to as closed-side wiring.

The door lock mechanism 40 executes or releases the door lock in response to the operation signal. As the door lock mechanism 40, for example, a device such as an actuator which can be electrically controlled to execute or release the door lock is preferable.

The switch means 50 includes the switch,
By manual operation of this switch, the door lock mechanism 40
To execute or release the door lock. For this reason, for example, a switch device that can be manually operated, such as inserting a key into a keyhole and turning the key in conjunction with a conventional plug-in key, allows the vehicle owner to directly operate the door lock mechanism by such manual operation. Devices that act to lock the door (execute or release the door lock) are preferred.

The door lock control means 30 does not have an independent receiving means for the operation signal from the remote control means 10, and transmits the operation signal through a part 39 of the electric wiring in the door lock control means 30. Receiving. Although a certain signal state is generated in the electric wiring including the part 39, only the operation signal cannot be taken out alone.

Next, the remote control means 10 is attached to the vehicle from a position distant from the vehicle regardless of whether or not a legitimate vehicle holder holds the key, such as a plug-in key. An operation signal for remotely controlling the door lock of the vehicle is transmitted to the door lock control means 30, and the execution or release of the door lock is remotely controlled.

For this reason, it is possible to use an operation signal that can be transmitted by transmitting the operation signal in the air by radio waves of a specific frequency band. Of course, without being limited to radio waves, depending on the distance between the vehicle and its owner, other means that can be remotely operated, such as infrared rays and ultrasonic signals, can be used, or a medium such as a public communication line can be used. It can also be done.

Further, the door lock device for the vehicle is provided with the following determining means 60. That is, the determination means
60 detects the signal state of the open-side wiring 41 for transmitting the door lock release signal to the door lock mechanism 40 and the signal state of the unlock wire 51 for transmitting the door lock release signal from the switch means 50, and detects the open state. It is determined based on a combination of the signal state of the side wiring 41 and the signal state of the unlock line 51 whether or not the remote control means 10 has performed the door unlock operation. Then, the result of the determination is output to the alarm means 70, and the operation of the alarm means 70 is determined.

The alarming means 70 that emits an alarming sound such as a siren or a buzzer is preferable in terms of the effect of intimidating a third party. However, means such as vibration or light or heat may be used. May be used. The alarm means 70 is connected to the determination means 60. And as described later, the alarm means 70 may be connected to a door courtesy switch, an intrusion sensor, or the like, similarly to a conventional alarm, or
Door opening / closing detecting means (not shown) may be incorporated.

In this embodiment, the discriminating means 60 is connected to the open wire 41 of the actuator, the unlock wire 51 of the switch means 50, and the door lock control means 30. This comparison circuit preferably includes an operational amplifier and the like.

The signal state refers to the state of the presence or absence of an operation signal on the connection line. If the operation signal is an electric signal and the electric signal is a pulse-like signal having a positive or negative voltage value, the signal state can be easily recognized and the operation can be easily performed. However, the signal need not be pulse-like as long as it can be distinguished as an operation signal. For these reasons, it is preferable that the presence or absence of the operation signal is detected by a voltage value.

The detection of the voltage value has sufficient detection accuracy for discriminating whether the voltage value is positive or negative and whether the voltage value is zero.
Detecting means can be provided such that wiring to the device is easy.

In the case of the present embodiment, the signal state of each connection line is detected by the open side wiring 41 and the unlock line 51. Here, there are nine combinations of the signal state of the open-side wiring 41 and the signal state of the unlock line 51 according to the determination of positive / negative and 0, and the signal states are compared with each other to determine the combination. .

In the signal state, specifically, the voltage of the open-side wiring 41 and the voltage of the unlock line 51 can take a positive value, 0, or a negative value. In the present embodiment, a positive value, 0, or a negative value of the voltage of the open-side wiring 41 and a positive value, 0, or a negative value of the voltage of the unlock wire 51 are divided into cases according to a combination of: It is determined whether the door is unlocked by the remote operation unit 10 or the door is unlocked by the key or the switch unit 50.

In such a combination, if the signal state of each connection line is set so that it can be divided into cases for each design, the determination of the remote operation in Table 1 is allocated according to each case.

[Table 1]

In the case of Table 1, only when the unlock wire 51 voltage is positive or 0 and the open wiring 41 voltage is negative is the door lock release operation from the remote control means 10. When the determination means 60 detects the combination state of the voltages, the determination means 60 determines that the operation is a remote control of a legitimate vehicle owner, and then releases the power supply to the warning means 70 to release the warning state. To output the determination result. The alarm means 70 is de-energized only in the case of such a determination result,
In other cases, the current is not released. In other cases, the alarm means 70 is operated on the assumption that an irregular operation has been performed.

In order to operate the alarm means 70 in the case of an irregular operation, a door courtesy switch or an intrusion sensor is provided and connected to the alarm means 70 to detect the opening and closing of the door and transmit a detection signal as in the conventional case. Then, the alarm means 70 may be operated.
Alternatively, door opening / closing detecting means (not shown) is provided in the alarm means 70 itself.
The alarm means 70 may be operated by detecting a door opening / closing and transmitting a detection signal.

The combination of signal states shown in Table 1 is determined by
This can be easily performed using a comparison circuit using an operational amplifier or a combination of logic circuits. The procedure for comparing the signal states with each other and the combination of the operation of the alarm means for the combination of the signal states may be stored and executed as a microcomputer program.

When the combination of the signal states is determined as shown in Table 1, the unlocking of the door from the remote control means 10 can be accurately and uniquely recognized by the combination of the voltage values only by a simple voltage comparison. The presence / absence of the door lock operation can be determined by the combination of the voltage values, and the operation of the alarm means 70 can be reliably determined. In the present invention, the signal state of each connection line is thus detected, and the presence / absence of the door lock operation by the remote control means 10 is determined based on the combination of the signal states. Then, the operation of the alarm means 70 is determined based on the determination result.

In this manner, the change of the vehicle door lock device itself is only required to add the discriminating means 60 while keeping the wiring of the conventional door lock device as it is, and it is necessary to determine whether the remote control means 10 has performed the door lock operation. Can be reliably determined, the determination means can be configured with a detection circuit and a determination circuit having a simple circuit configuration, and in the case of a vehicle door lock device in which independent reception means for the door lock control means 30 is not provided. The operation of the alarm means can be reliably determined.

As described above, the door lock operation by the remote control means 10 is in the signal state in which the operation signal has arrived at the connection line with the door lock mechanism 40, and therefore, the combination of the detection results indicates Since the presence or absence of the door lock operation by the remote control means 10 can be recognized, in the case of the vehicle door lock device in which the independent reception means for the door lock control means 30 is not provided, the discrimination means
The numeral 60 easily and accurately determines whether or not the door lock operation is performed by the remote operation means 10. Therefore, in each case, the operation of the alarm means 70 can be determined reliably.

When there is a door lock operation from the remote control means 10, the discrimination means 60 judges that this is a door lock operation of a proper owner and releases the power supply to the alarm means 70. On the other hand, the detection result of the signal state other than the case of “Yes” in Table 1 is determined to be an unauthorized door lock operation by a third party, and the power supply state to the alarm means 70 is determined. Is maintained, and the alarm means 70 is operated simultaneously with the opening of the door.

The setting of the discriminating means 60 and the alarm means 70 is performed by another setting corresponding to the combination of the detection results of the signal states, for example, the intermittent or irregular operation by the alarm means 70 or the engine stop means. It can also be changed to the action on

Second Embodiment In the first embodiment, the combinations of signals are as shown in Table 1. However, the present invention can be applied to a case that is completely opposite to the case of Table 1. That is, in the first embodiment, basically, the signal for instructing door lock release is a negative value, but this operation signal may be normal depending on the vehicle type or the manufacturer of the vehicle.

In this case, only when the unlock line 51 voltage is negative and the open-side wiring 41 voltage is positive or 0 is the door lock release operation from the remote control means 10, When the combination state of the voltages is detected, the alarm means 70
Can be released from the alert state without operating
Also in this case, the present invention can be applied to obtain the same effect as that of the first embodiment.

Further, the gist of the present invention resides in that the signal state of the wiring to the door lock mechanism 40 connected to the door lock control means 30 and the signal state of the wiring from the switch means 50 are combined with the remote control means 10. Therefore, the signal state may be observed in the form of a waveform or a cycle. It is clear that the combination of positive and negative may be different from that of the first or second embodiment as long as the case is clear.

[0051]

In the vehicle door lock device according to the present invention, the discriminating means includes a signal state in the door lock mechanism;
From the detection result of detecting the signal state of the switch means, the case of door unlock operation by the remote control means is determined, and the alarm means is externally wired so as not to operate only in this case. In the door lock operation by the means, since the signal state is such that the operation signal has arrived at the connection line between the door lock control means and the door lock means, the door lock operation by the remote control means is determined by the combination of the detection results. Can be reliably determined.

Therefore, in the case of a vehicle anti-theft device in which an independent receiving means is not provided for the door lock control means, it is easily and accurately determined whether or not the door lock operation is performed by the remote control means. obtain.

The release signal for releasing the door lock among the operation signals is a negative voltage signal, the signal state is detected by a voltage value, and the voltage value indicating the signal state of the connection line between the control means and the switch means is positive. Alternatively, if the voltage value indicating 0 and the voltage value indicating the signal state of the connection line between the control means and the door lock means is negative, it is determined that the door lock is released by the remote control means, and the power supply to the alarm means is stopped. Therefore, the door lock release from the remote control means can be accurately and uniquely recognized by the combination of the voltage values only by a simple voltage comparison. Therefore,
A combination of voltage values can be obtained only by a simple voltage comparison, and this combination makes it possible to accurately and unambiguously recognize the unlocking of the door from the remote control means. There is an advantage that can be determined by

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a door lock device for a vehicle according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a main part of a conventional vehicle door lock device.

FIG. 3 is a block diagram showing a configuration of a main part of a conventional vehicle door lock device.

[Explanation of symbols]

10 remote control means, 20 receiving means, 30 door control means, 40 door lock mechanism (actuator), 50 switch means, 60 determination means

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Yoshiko Ono 3-2-10, Noribori, Nishi-ku, Osaka-shi F-term in Nisshinki Co., Ltd. (reference) 2E250 AA21 BB08 BB15 FF36 FF38 FF40 HH01 JJ03 JJ05 KK03 LL01 RR00 SS01 SS02 SS09 TT03 UU02

Claims (2)

[Claims] 1. A door lock mechanism for executing or releasing a door lock of a vehicle in response to a door lock operation signal, and a switch for manual operation, the door lock mechanism receiving a manual operation on the switch. Switch means for executing or releasing the door lock, door lock control means connected to the door lock mechanism and the switch means for controlling the door lock mechanism, and transmitting a door lock operation signal from a position separated from the vehicle A door lock device for a vehicle, comprising a remote control unit and an alarm unit, wherein the door lock device receives a door lock operation signal from the remote control unit through a part of electrical wiring inside the door lock control unit. A signal state of a connection line between the lock control means and the door lock mechanism, and a signal state of a connection line between the door lock control means and the switch means A vehicle state detecting means for detecting a door lock operation by the remote control means based on a combination of the signal states, and outputting the result of the determination to the alarm means. Door lock device. 2. A door lock release signal of the door lock operation signal is transmitted as a negative voltage signal.
If the voltage value indicating the signal state of the connection line between the control means and the switch means is positive or 0 and the voltage value indicating the signal state of the connection line between the control means and the door lock mechanism is negative, the door by the remote control means 2. The vehicle door lock device according to claim 1, wherein the door lock device is configured to determine that the operation is a lock release operation and stop energizing the alarm unit.