JP3854838B2 - Vehicle locking control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a radio wave type vehicle locking control device including an in-vehicle controller including a portable device and a receiver.
[0002]
In recent years, when a portable device (wireless transmitter) is attached to a vehicle key, and a vehicle holder including a receiver on the vehicle side causes the key holder (such as a driver, hereinafter simply referred to as a driver) to move away from or close to the vehicle door, A system that automatically locks (locks) and unlocks (unlocks) a door has been proposed.
[0003]
However, in the case of this system, Oite at the time of key mobile phone also, than had been calling the ID signal from the always-portable device, severe exhaustion of the battery (power supply), is a waste. For this reason, a proposal has been made to incorporate a vibration detection circuit having a vibration sensor on the portable device side, to transmit an ID signal when the key is vibrating, and to stop transmitting the ID signal when the key is not vibrating. (For example, JP-A-11-210287).
[0004]
[Problems to be solved by the invention]
However, this method may cause the following inconveniences.
(1) First, if the driver removes the key from the steering cylinder (key insertion port) and then forgets to place the key near the seat, for example, and closes the door, the portable device will no longer vibrate. Since the transmission of the ID signal stops, there arises a disadvantage that the door is automatically locked.
[0005]
(2) Also, if the vehicle is shaken from the outside while the door is locked due to forgetting the key in the vehicle, the key vibrates, so that an ID signal is transmitted and the door may be unlocked. . If this external force grantor is an unauthorized third party, problems such as theft occur.
[0006]
(3) Also, if the driver approaches to get into the vehicle and stops for some reason, the vibration of the key stops, so the ID signal disappears and the door may be locked automatically. If it does so, it will be necessary to redo the door unlocking operation from the beginning, and the problem that it is quite troublesome arises.
[0007]
The present invention has been made in view of such a conventional situation. Basically, the portable device side is provided with a sub signal transmission circuit that transmits a sub ID signal for a certain period when transmission of the signal transmission circuit is stopped. The in-vehicle controller side is provided with a sub ID signal storage unit for storing ON / OFF of sub ID signal transmission and alarm means, and the in-vehicle controller side is inputted with each state data of cylinder key state, door open / close state, and door lock state. Thus, as will be described later, the above problem is solved.
[0008]
[Means for Solving the Problems]
The present invention according to claim 1 is a vehicle locking control device comprising: a portable device that transmits an ID signal for performing locking / unlocking control of the vehicle ; and an in-vehicle controller that includes a receiver that receives an ID signal from the portable device.
The portable device, a vibration detection circuit for detecting the vibration of the portable device, a signal transmission circuit for transmitting a vibration time ID signal of the portable device, a sub-ID signal when placing stop of the ID signal according to the signal transmitting circuit While having a sub-signal transmission circuit that transmits for a certain period, a timer, a control circuit, and a transmission antenna,
The in-vehicle controller has a sub ID signal storage unit that receives a sub ID signal from the portable device and stores on / off of the sub ID signal transmission, and an alarm unit. Is a vehicle locking control device in which state data of a cylinder key state, a door open / close state, and a door lock state are input.
[0009]
According to a second aspect of the present invention, when the transmission of the ID signal by the signal transmission circuit is stopped when the key is left in the vehicle, the sub signal transmission circuit transmits a sub ID signal for a certain period of time, 2. The vehicle locking control device according to claim 1, wherein the alarm means is driven by the ON state of the ID signal storage unit and the state data of the door open / close state.
[0010]
According to a third aspect of the present invention, there is provided the vehicle locking control device according to the second aspect, wherein the vehicle-mounted controller locks after a certain period of warning by the warning means.
[0011]
According to a fourth aspect of the present invention, there is provided a predetermined period in the sub-signal transmission circuit when the key is left in the vehicle and when the key is left in the vehicle when vibration is applied to the vehicle. The vehicle locking control device according to claim 1, wherein the vehicle-mounted controller does not unlock the vehicle according to the on-state of the sub-ID signal storage unit when the sub-ID signal is transmitted.
[0012]
According to the fifth aspect of the present invention, when the transmission of the ID signal by the signal transmission circuit is stopped by stopping in the vicinity of the vehicle when getting on, the sub-signal transmission circuit transmits the sub ID signal for a certain period. The vehicle locking control device according to claim 1, wherein the vehicle-mounted controller does not lock the vehicle according to the ON state of the sub ID signal storage unit and the state data of the door lock state.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment of a vehicle locking control device according to the present invention, and FIG. 2 shows a portable device in FIG. In the figure, 100 is a portable device on the key 10 side, and 200 is a vehicle-mounted controller including a vehicle-side receiver.
[0014]
The portable device 100 includes a vibration detection circuit 101 that detects vibration of the portable device 100, a signal transmission circuit 102 that transmits an ID signal when the portable device 100 vibrates, and a sub ID signal (basic when the signal transmission circuit 102 stops transmitting). Is provided with a sub-signal transmission circuit 110 for transmitting a signal for a predetermined period, a timer 120 for time control, a control circuit 103 for the entire portable device, and a transmission antenna 104. Of course, the power supply 131 and the SW input circuits 132 and 133 for a manual lock (lock) switch and an unlock (unlock) switch are provided.
[0015]
The in-vehicle controller 200 includes a sub ID signal storage unit (flag register) 210 for storing ON / OFF of sub ID signal transmission, and an alarm unit 220, and normally includes a power source 231 and a door opening / closing actuator. 232, a receiving circuit (receiver) 233, a receiving antenna 234, and the like. As the alarm means 220, as shown in FIG. 1, an alarm buzzer 221 and an alarm lamp 222 can be specially provided. However, existing means on the vehicle side, such as an electronic sound generator, a speaker, a horn, A lamp, a light emitting element, or the like can be used. The warning form is not limited to a simple warning sound or warning light, but can be a voice warning from a speaker.
[0016]
In addition, the in-vehicle controller 200 is input with each state data of a cylinder key state (whether or not there is a key at the cylinder key insertion port), a door open / close state, and a door lock state. Is stored in a state data storage unit (flag register) 240. L1 is an input line from the cylinder key switch (SW), L2 is an input line from the door switch (SW), and L3 is an input line from the door lock state switch (SW).
[0017]
Next, the operation of the vehicle locking control apparatus configured as described above will be described.
First, when the driver removes the key from the cylinder, opens the door, leaves the vehicle, and the ID signal from the portable device 100 cannot reach the receiving circuit 233 side of the in-vehicle controller 200, as shown in the time chart of FIG. Reception of the ID signal is stopped. That is, it becomes OFF. With this ID signal reception OFF, the in-vehicle controller 200 outputs a “lock” signal as a door lock command after a certain time T ₁ , and automatically locks the door by driving the actuator 232.
At this time, since there is no transmission from the sub signal transmission circuit 110 of the portable device 100, the forgetting flag of the sub ID signal storage unit 210 remains in the OFF state.
[0018]
Thereafter, when the driver returns and approaches the vehicle, an ID signal is received. That is, it becomes ON. When this ID signal reception is ON, the in-vehicle controller 200 outputs a “unlock” signal as a door lock command and automatically unlocks the door by driving the actuator 232. This allows the driver to get into the vehicle.
[0019]
For example, if the driver forgets the key 10 in the vicinity of the seat and closes the door due to carelessness with respect to such normal operation, the key will not vibrate as shown in the time chart of FIG. The transmission of the ID signal is stopped. That is, it becomes OFF.
[0020]
However, when the ID signal transmission is turned off, a sub ID signal is transmitted from the sub signal transmission circuit 110 for a certain period (T ₂ ). For this reason, the in-vehicle controller 200 does not output a “lock” signal as a door lock command, and the door is not automatically locked. In addition, when the sub ID signal transmission is turned ON, the flag (forgetting flag) of the sub ID signal storage unit 210 is turned on. That is, it is kept ON. Note that the control of the period T ₂ is performed by the timer 120. Further, the reset (off state) of the flag of the sub ID signal storage unit 210 is performed in the next door unlocking operation, door opening, or the like.
[0021]
Based on this ON state and the “open” signal of the state data storage unit 240 in which the door opening / closing state is maintained, the in-vehicle controller 200 receives an alarm sound, alarm light, etc. from the alarm means 220 for a certain period (T _A ). An alarm is issued.
Therefore, the driver can quickly know that the key has been misplaced. Of course, at this point, the door is not yet locked, so the driver can open the door and look for the key.
[0022]
However, despite this warning, even if the driver has departed, unlocked, i.e. the unlocking is continued, because it is unwary, after the elapse of the warning period (T _A), vehicle controller 200 Then, a “lock” signal is output as a door lock command to automatically lock the door. As a result, it is possible to prevent theft and the like and to ensure high safety.
[0023]
Next, when the key is left in the vehicle, even if the vehicle is vibrated from the outside, the door is not automatically unlocked for the following reason.
Even if the key is left in the vehicle, when vibration is applied to the key, the signal transmission circuit 102 normally transmits an ID signal, so that the door is automatically unlocked. However, as described above, the forgotten flag in the sub ID signal storage unit 210 is turned on by the transmission of the sub ID signal for a certain period (T ₂ ) of the sub signal transmission circuit 110 accompanying the misplacement of the key in the vehicle. That is, it is kept ON. . In this on state, the in-vehicle controller 200 does not output an “unlock” signal as a door lock command, and the door is not automatically unlocked.
[0024]
That is, the locked state of the door is maintained as it is. Therefore, when the key is left in the vehicle, even if a third party intentionally shakes the vehicle from the outside for an illegal purpose, the vehicle is not unlocked. For example, in a large parking lot such as a supermarket, even if an unauthorized third party discovers that a key has been misplaced or is accidentally shaken, the door will not open. As a result, a good anti-theft effect can be obtained.
[0025]
Next, even if the driver who has the key returns, approaches the vehicle, and stops in the vicinity of the vehicle for some reason, the door is not automatically locked for the following reason.
[0026]
Normally, since the ID signal from the portable device 100 is received by the receiving circuit 233 side of the in-vehicle controller 200 due to the approach to the vehicle, the door is automatically unlocked once. Since the transmission of the ID signal by the circuit 102 is stopped, the door is automatically locked.
However, when the ID signal transmission is turned off, a sub ID signal is transmitted from the sub signal transmission circuit 110 for a certain period (T ₂ ). As a result, the forgetting flag of the sub ID signal storage unit 210 is turned on. That is, it is kept ON.
[0027]
In this on state, the in-vehicle controller 200 does not output a “lock” signal as a door lock command, and the door is not automatically locked.
Therefore, the driver can get into the vehicle without performing the unlocking operation again. That is, it is released from the troublesomeness of the unlocking operation.
[0028]
【The invention's effect】
As is apparent from the above description, the vehicle locking control device according to the present invention provides the following excellent effects.
[0029]
First, basically, a sub-signal transmission circuit that transmits a sub-ID signal for a certain period when transmission of the signal transmission circuit is stopped is provided on the portable device side, while a sub-ID signal transmission ON / OFF is stored on the in-vehicle controller side. In addition to providing an ID signal storage unit and alarm means, the vehicle controller side inputs the cylinder key status, door open / close status, and door lock status status data. Can be eliminated.
[0030]
(1) If the driver forgets to put the key in the vehicle due to carelessness, the door will not be automatically locked by stopping the ID signal transmission on the portable device side.
(2) At this time, the alarm means is driven by the ON state of the sub ID signal storage unit for storing the ON / OFF state of the sub ID signal by the sub signal transmission circuit and the state data of the door open / close state. If this is done, the driver can be informed quickly of the misplaced key.
(3) Furthermore, if the door is automatically locked by the in-vehicle controller after the warning period has passed, it is possible to eliminate the needlessness after the driver leaves despite the warning, and high safety. Is secured.
(4) In addition, even if the vehicle is shaken from the outside in a state where the key is misplaced, the locked state of the door can be maintained as it is based on the on-state data of the sub ID signal storage unit and the door open / closed state data. Effective crime prevention effect can be obtained against a serious third party.
(5) In addition, even if the driver approaches the vehicle and stops for any reason, the door is not automatically locked by the on-state data of the sub ID signal storage unit or the door opening / closing state data. The driver does not need to redo the door unlocking operation again.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a vehicle locking control device according to the present invention.
FIG. 2 is a diagram showing an example of a portable device in FIG.
FIG. 3 is a view showing a time chart in the apparatus of FIG. 1;
4 is a diagram showing a time chart in the apparatus of FIG. 1; FIG.
[Explanation of symbols]
10 key 100 portable device 101 vibration detection circuit 102 signal transmission circuit 103 control circuit 104 transmission antenna 110 sub signal transmission circuit 120 timer 200 on-board controller 210 sub ID signal storage unit 220 alarm means 232 actuator 240 state data storage unit

Claims (5)

In a vehicle locking control device including a portable device that transmits an ID signal for performing locking / unlocking control of a vehicle and an in-vehicle controller that includes a receiver that receives an ID signal from the portable device,
The portable device, a vibration detection circuit for detecting the vibration of the portable device, a signal transmission circuit for transmitting a vibration time ID signal of the portable device, a sub-ID signal when placing stop of the ID signal according to the signal transmitting circuit While having a sub-signal transmission circuit that transmits for a certain period, a timer, a control circuit, and a transmission antenna,
The in-vehicle controller has a sub ID signal storage unit that receives a sub ID signal from the portable device and stores on / off of the sub ID signal transmission, and an alarm unit. Is a vehicle locking control device to which state data of a cylinder key state, a door open / close state, and a door lock state are inputted. When the transmission of the ID signal by the signal transmission circuit is stopped when the key is left in the vehicle, the sub-signal transmission circuit transmits a sub-ID signal for a certain period, and the sub-ID signal storage unit is turned on, 2. The vehicle locking control device according to claim 1, wherein the alarm means is driven by state data of a door open / close state.   3. The vehicle locking control device according to claim 2, wherein locking is performed by the in-vehicle controller after warning for a certain period by the warning means.   When the key is left in the vehicle and when the vibration is applied to the vehicle, when the key is left in the vehicle, the sub signal transmission circuit transmits the sub ID signal for a certain period. The vehicle locking control device according to claim 1, wherein the vehicle-mounted controller does not unlock the vehicle according to the ON state of the sub ID signal storage unit.   The sub-ID signal storage unit is turned on by transmitting the sub-ID signal for a certain period of time in the sub-signal transmission circuit when the transmission of the ID signal is stopped by the signal transmission circuit by stopping in the vicinity of the vehicle when getting on. The vehicle locking control device according to claim 1, wherein the vehicle-mounted controller does not lock the vehicle according to a state and door lock state data.

Images