JP3857383B2 - Steering lock system for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a vehicle steering lock system in which an operation of a steering lock mechanism is performed using an actuator, and in particular, an ID code read from a portable memory carrier matches an ID code registered in advance on the vehicle side. Before whenAThe present invention relates to a vehicle steering lock system provided with a control means for unlocking the steering lock mechanism by a actuator and switching to a state in which operation of a main switch is allowed.
[0002]
[Prior art]
In recent years, various measures have been taken to increase safety against vehicle theft. As an example of such measures, the ID code unique to the tag carried by the driver is stored, and only when the ID code read from the tag matches the ID code registered in advance on the vehicle side. It is considered that the switch is switched to a state in which operation of an ignition switch as a switch is permitted.
[0003]
When such a configuration is employed, it is necessary to unlock the steering lock mechanism at a stage before allowing the operation of the ignition switch as described above. For this reason, conventionally, when the ID code read from the tag matches the ID code on the vehicle side, the steering lock mechanism is unlocked by the actuator prior to allowing the operation of the ignition switch. It is considered. The steering lock mechanism is locked when the ignition switch is operated to the off position (lock position).
[0004]
[Problems to be solved by the invention]
In the above conventional configuration, the steering lock mechanism is locked only when the ignition switch is operated to the OFF position. For example, the driver who has the tag gets off the vehicle while operating the ignition switch to the accessory position. In that case, the steering lock mechanism remains unlocked. In such a state, it is possible to move the vehicle (including towing, etc.), which increases the risk of the vehicle being stolen. As a result, the original provision of the tag and the steering lock mechanism is provided. There was an unresolved issue that the meaning disappeared.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a steering lock mechanism by an actuator when an ID code read from a portable storage carrier matches an ID code registered in advance on the vehicle side. The structure that switches to a state in which the operation of the main switch is allowed to be unlocked enhances the safety against theft, but the steering lock mechanism can be accurately locked to ensure the safety against the vehicle theft. It is an object of the present invention to provide a vehicle steering lock system that has an effect such as sufficiently securing the vehicle.
[0006]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention provides an actuator for operating a steering lock mechanism, an off position for interrupting an accessory circuit and a vehicle travel circuit, an accessory position for forming an accessory circuit, and a vehicle travel A main switch provided so as to be selectively operable to an ON position for forming a circuit, a portable memory carrier storing a unique ID code, and a reading means for performing an operation of reading the ID code from the memory carrier When the ID code read by the reading means matches the ID code registered in advance on the vehicle side, the steering is operated by the actuator. The lock mechanism is unlocked and the operation of the main switch is allowed. The control means for switching to the state and the reading operation of the ID code by the reading means are continued even in the unlocked state of the steering lock mechanism, and when the ID code cannot be read from the storage carrier, or the reading means When the read ID code does not match the ID code registered in advance on the vehicle side, the steering lock mechanism is locked through the actuator on the assumption that a predetermined lock condition is satisfied.Auxiliary control means and a return mechanism for moving the main switch to the off position when the steering control mechanism is controlled by the auxiliary control means in a state where the main switch is in a position other than the off position.(Claim 1).
[0007]
In such a configuration, the driver of the vehicle always carries a portable memory carrier, and when the vehicle travel circuit is formed by the main switch, the memory ID code of the memory carrier is read. Let the means read. At this time, when the read ID code matches the ID code registered in advance on the vehicle side, the control means unlocks the steering lock mechanism by the actuator and operates the main switch that has been in the operation prohibited state until then. Therefore, it is possible to perform an operation of turning on the vehicle travel circuit in accordance with the operation of the main switch.
[0008]
  In this state where the steering lock mechanism is unlockedThe reading operation of the ID code by the reading means is continued.For example, if a driver with a memory carrier gets off,The ID code cannot be read from the storage carrier, and when such a situation occurs,The auxiliary control means locks the steering lock mechanism through the actuator on the assumption that a predetermined lock condition is satisfied.The auxiliary control means presupposes that the predetermined lock condition is satisfied even when a state occurs in which the ID code read by the reading means does not match the ID code registered in advance on the vehicle side. The steering lock mechanism is locked through the actuator.
[0009]
  Therefore, even when the driver carrying the memory carrier gets off without operating the main switch to the off position, the steering lock mechanism is automatically locked, making it impossible to move or run the vehicle. Therefore, the safety against vehicle theft can be improved. Also,When the driver who has the memory carrier gets off without operating the main switch to the off position, the main switch is automatically moved to the off position by the return mechanism.Convenience will be improved.
[0011]
  To achieve the above object, an actuator for operating the steering lock mechanism, an off position for shutting off the accessory circuit and the vehicle travel circuit, an accessory position for forming the accessory circuit, and a vehicle travel circuit are formed. A main switch that can be selectively operated to an on position, a portable storage carrier that stores a unique ID code, a reading means that reads the ID code from the storage carrier, and the main switch at all times The steering lock mechanism is unlocked by the actuator when the ID code read by the reading means coincides with the ID code registered in advance on the vehicle side. At the same time, it switches to a state that allows operation of the main switch. Even when the steering means and the steering lock mechanism are in an unlocked state, the reading operation of the ID code by the reading means is continued, and when the ID code cannot be read from the storage carrier, or the ID read by the reading means Provided with auxiliary control means for locking the steering lock mechanism through the actuator on the assumption that a predetermined lock condition is satisfied when the code does not match an ID code registered in advance on the vehicle side. so,
  When the vehicle is in a running state with the steering lock mechanism unlocked and the vehicle running circuit cut off, the ID that matches the ID code registered on the vehicle side from the storage carrier An alarm may be generated when the code reading is stopped (claims).2). According to this configuration, similarly to the first aspect of the invention, even when the driver who has the memory carrier gets off without operating the main switch to the off position, the steering lock mechanism is automatically Since the vehicle is locked and cannot move or run, the safety against vehicle theft can be improved. In addition, when a third party who does not have a memory carrier moves the vehicle, an alarm is generated, so that safety against vehicle theft can be further improved.
[0012]
  Claim 1 as aboveOr 2In each of the inventions described above, it is preferable that the lock condition includes at least a stop state of the vehicle.3According to such a configuration, it is possible to reliably prevent the steering lock mechanism from being inadvertently locked in the traveling state of the vehicle.
[0013]
  The auxiliary control means may be configured to execute control for locking the steering lock mechanism when a preset delay time has elapsed.4According to this configuration, it is possible to prevent a situation in which the locking operation of the steering lock mechanism is performed more frequently than necessary.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to an automobile using an engine as a power source will be described with reference to the drawings.
FIG. 1 shows an outline of the entire electrical configuration by a combination of functional blocks. In FIG. 1, an ID tag 1 (corresponding to a portable storage carrier in the present invention) carried by a vehicle driver is stored in advance with a unique tag ID code, and when a trigger signal described later is received. The answer back signal including the tag ID code is transmitted.
[0016]
Similarly, the remote controller 2 carried by the vehicle driver is provided with a lock switch and an unlock switch, although not specifically shown, and in each case where the switch is operated, a lock signal and an unlock using a radio wave as a medium. It is the structure which performs the operation | movement which each transmits a signal. In this case, the lock signal and the unlock signal are configured to include a type code indicating the type and a door lock mechanism ID code set in advance.
[0017]
The reception circuit 3 mounted on the vehicle side is provided so as to be able to receive the lock signal and the unlock signal within a predetermined reception range (for example, a radius of about several meters), and the reception signal is transmitted to the control device 4 (the present invention). Equivalent to the control means and auxiliary control means).
[0018]
The transmission / reception unit 5 (corresponding to the reading means in the present invention) is arranged in, for example, an overhead console 6 which is an appropriate position in the vehicle as shown in FIG. 3 performs a transmission / reception operation (reading operation of a tag ID code in the ID tag 1) using a radio wave signal as a medium with the ID tag 1 carried by the mobile phone. . Specifically, the transmission / reception unit 5 performs a trigger signal transmission operation in response to a command from the control device 4, and when the ID tag 1 that has received this trigger signal performs the answerback signal transmission operation, The answer back signal is received and given to the control device 4.
[0019]
The human detection sensor 8 is for detecting a state in which a person approaches within a range of a predetermined distance from the driver's seat in the vehicle (a range in which the engine can be started). For example, a human body sensor using a microwave as a medium ( The detection signal is supplied to the control device 4 using a dielectric sensor).
[0020]
  The control device 4 is constituted by a microcomputer provided with a CPU, ROM, RAM, I / O interface, and the like.5In addition to the received signal from the vehicle and the detection signal from the human detection sensor 8, a parking brake switch 9, a door lock detection switch 10, a door courtesy switch 11, a shift position switch 12, a vehicle speed sensor 13, an engine speed listed below are listed. Each signal is received from the sensor 14 and the ignition switch 15 (corresponding to a main switch in the present invention).
[0021]
The parking brake switch 9 generates a brake-on signal when the parking brake is operating. The door lock detection switch 10 generates a lock detection signal when the vehicle door lock mechanism 16 is in a locked state, and generates an unlock detection signal when it is in an unlocked state. The door courtesy switch 11 generates a door opening signal when the vehicle door is opened. The shift position switch 12 generates a parking signal and a neutral signal in each state where the automatic transmission of the vehicle is in the parking position and the neutral position, respectively.
[0022]
The vehicle speed sensor 13 generates a pulsed vehicle speed signal having a period corresponding to the traveling speed in the traveling state of the vehicle. The engine rotational speed sensor 14 generates a pulse rotational speed signal with a period corresponding to the engine rotational speed in the operating state of the vehicle engine.
[0023]
For example, as shown in FIG. 3, the ignition switch 15 is provided on the dashboard 18 of the vehicle, and the rotation operation from the OFF position OFF, which is the initial position, is always performed by the key lock actuator 19 (return in the present invention). (Equivalent to the mechanism). Further, when the operation of the ignition switch 15 is allowed, an accessory circuit is formed in accordance with the operation of the operation dial 15a from the known OFF position OFF in a general ignition switch as shown in FIG. And a position that can be sequentially rotated to each position of an ON position ON for forming an accessory position ACC, an ignition circuit (corresponding to a vehicle driving circuit in the present invention), and a start position ST for forming a starter circuit (The start position ST is held only during a period in which an operating force is applied), and an off signal, an accessory signal, an on signal, and a start signal indicating these states are displayed in the state of being operated to each position. appear. The key lock actuator 19 has a function of moving the ignition switch 15 to the OFF position OFF.
[0024]
The door lock mechanism 16 is configured to be operated by a door lock actuator 16a made of, for example, an electromagnetic solenoid. The steering lock mechanism 17 is for selectively locking the rotation of the steering shaft. For example, the steering lock mechanism 17 is configured to be operated by a steering lock actuator 17a (corresponding to an actuator in the present invention) formed by combining a motor and a speed reduction mechanism. ing. The storage device 20 is configured by previously storing (registering) a tag ID code and a door lock mechanism ID code unique to the vehicle, and the control device 4 can access the storage device 20. Yes.
[0025]
The engine control ECU 21 has a well-known configuration for performing fuel injection control, ignition timing control, idle control, and the like for the vehicle engine. The engine control ECU 21 includes a parking signal and neutral signal from the shift position switch 12, and a vehicle speed from the vehicle speed sensor 13. In addition to the signal, the rotational speed signal from the engine rotational speed sensor 14, the ON signal from the ignition switch 15, and the starter signal, a crank position signal and an idle signal necessary for engine control are input.
[0026]
Now, the control device 4 performs the transmission / reception unit 5, the door lock actuator 16a, the steering lock actuator 17a, the key lock actuator 19, the engine based on the input signals as described above, the program stored in advance, and the data stored in the storage device 20. The control ECU 21 is controlled. FIG. 2 shows a part related to the gist of the present invention in the contents of control by the control device 4 as described above, and this will be described below together with related actions.
[0027]
In FIG. 2, the control device 4 first starts the timer operation (about several tens of seconds) of the human detection timer realized by the internal program (step S1), and then cyclically executes steps S2 to S5. Form a wait loop.
[0028]
In step S2, it is determined whether or not the human detection timer has expired. In step S3, it is determined whether or not an unlock signal has been received from the remote controller 2. In step S4, a lock signal from the remote controller 2 is determined. Whether or not is received. Further, in step S5, it is determined whether or not a lock condition for the steering lock mechanism 17 is satisfied.
[0029]
In this case, the locking condition of the steering lock mechanism 17 is that when the ignition switch 15 is operated to the OFF position OFF, for example, the steering lock mechanism is unlocked, the engine is stopped, and the vehicle is stopped. When this lock condition is satisfied (“YES” in step S5), a standby loop (step S6 for performing the locking operation of the steering lock mechanism 17 through the steering lock actuator 17a) is executed. Return to steps S1 to S5).
[0030]
When the lock signal is received from the remote controller 2 (“YES” in step S4), it is determined whether or not the lock condition of the door lock mechanism 16 is satisfied (step S7). For example, the door lock mechanism 16 is unlocked when the ignition switch 15 is in the OFF position OFF, and the door lock mechanism ID code in the received lock signal is stored in the storage device 20. It is established when it matches the ID code for the door lock mechanism.
[0031]
If the lock condition is not satisfied at the time of receiving the lock signal, the process returns to the standby loop as it is. If the lock condition is satisfied (“YES” in step S7), the door is locked through the door lock actuator 16a. After executing step S8 for performing the locking operation of the mechanism 16, the process returns to the standby loop.
[0032]
When an unlock signal is received from the remote controller 2 (“YES” in step S3), it is determined whether an unlock condition for the door lock mechanism 16 is satisfied (step S9). This unlocking condition is, for example, when the vehicle is stopped and the door lock mechanism 16 is in the locked state when the ignition switch 15 is in the OFF position OFF, and for the door lock mechanism in the received unlock signal. This is established when the ID code matches the door lock mechanism ID code stored in the storage device 20.
[0033]
If the unlock condition is not satisfied at the time of receiving the unlock signal, the process returns to the standby loop as it is. If the unlock condition is satisfied (“YES” in step S9), the door is passed through the door lock actuator 16a. After executing step S10 for performing the unlocking operation of the lock mechanism 16, the process returns to the standby loop.
[0034]
When the human detection timer expires ("YES" in step S2), after executing step S11 for restarting the human detection timer, the predetermined time is determined from the driver's seat based on the output from the human detection sensor 8. It is determined whether or not there is a person approaching within the distance range (step S12). If “YES” is determined in the step S12, an operation of transmitting a trigger signal from the transmission / reception unit 5 is performed (step S13).
[0035]
After performing the trigger signal transmission operation, it is determined whether or not the answer back signal from the ID tag 1 has been received for a predetermined short time t (steps S14 and S15). If the answerback signal is not received within the time t, the process proceeds to step S22 described later. If the answerback signal is received, the tag ID code in the answerback signal is stored in advance in the storage device 20. It is determined whether or not it matches the stored tag ID code (step S16).
[0036]
If the tag ID codes do not match, the process returns to the standby loop. If they match, it is determined whether or not the unlocking condition of the steering lock mechanism 17 is satisfied (step S17). In this case, the unlocking condition of the steering lock mechanism 17 is set so as to be satisfied when any of the following conditions (1) to (6) is satisfied under the situation where the steering lock mechanism 17 is locked. Is done.
[0037]
(1) When the shift position is in the parking position in a state where the ignition switch 15 is in the OFF position OFF.
(2) When the shift position is in the neutral position and the parking brake is in the operating state in the state where the ignition switch 15 is in the OFF position OFF.
(3) When the shift position is at the parking position in a state where the ignition switch 15 is operated to the accessory position ACC.
(4) When the shift position is in the neutral position and the parking brake is in the operating state in a state where the ignition switch 15 is operated to the accessory position ACC.
(5) When the engine is stopped and the shift position is in the parking position while the ignition switch 15 is operated to the ON position ON.
(6) When the engine is stopped, the shift position is in the neutral position, and the parking brake is in the operating state in a state where the ignition switch 15 is operated to the ON position ON.
[0038]
When the unlocking condition of the steering lock mechanism 17 as described above is not satisfied, the process returns to the standby loop, but when the unlocking condition is satisfied (“YES” in step S17), the steering lock mechanism 17a is operated through the steering lock actuator 17a. Step S18 for performing the unlocking operation 17; Step S19 for switching the operation of the ignition switch 15 through the key lock actuator 19; Step S20 for giving the engine control permission to the engine control ECU 21; After step S21 is set sequentially, the process returns to the standby loop.
[0039]
As a result of executing steps S12 to S21 as described above, the driver who has the ID tag 1 storing the same tag ID code as that of the vehicle is in a state of approaching a predetermined distance from the driver's seat. The steering lock mechanism 17 is automatically unlocked and the ignition switch 15 only when any of the above-described unlock conditions (1) to (6) of the steering lock mechanism 17 is satisfied. Is switched to an operable state, and the engine control ECU 21 is switched to a state where the engine can be started. In this case, an allowance flag F indicating that the engine can be started is set.
[0040]
On the other hand, if “NO” is determined in step S12 (when a person is not approaching within a predetermined distance from the driver's seat when the human detection timer expires), “YES” is determined in step S15. When it is determined (when the answer back signal is not received within a predetermined time t after performing the trigger signal transmission operation), it is determined whether or not the allowance flag F is set (step S22).
[0041]
If the allowance flag F is not set, the process returns to the standby loop, but if it is set, an operation of transmitting a trigger signal from the transmission / reception unit 5 is performed (step S23).
[0042]
After performing the trigger signal transmission operation in this way, it is determined whether or not the answer back signal from the ID tag 1 has been received for a predetermined short time t (steps S24 and S25). If the answerback signal is not received within time t, the process proceeds to step S27 described later. If the answerback signal is received, the tag ID code in the answerback signal is stored in advance in the storage device 20. It is determined whether or not it matches the stored tag ID code (step S26).
[0043]
If the tag ID codes match, the process returns to the standby loop. If the tag ID codes do not match, the process proceeds to step S27. In step S27, it is determined whether or not the lock condition of the steering lock mechanism 17 is satisfied. In this case, the lock condition of the steering lock mechanism 17 is set so as to be satisfied when any of the following conditions (7) to (12) is satisfied under the situation where the steering lock mechanism 17 is unlocked. Is done. It should be noted that the state where the shift position is in the parking position can be regarded as the vehicle being stopped.
[0044]
(7) When the shift position is in the parking position with the ignition switch 15 in the OFF position OFF.
(8) When the ignition switch 15 is in the OFF position OFF and the shift position is other than the parking position and the vehicle is stopped.
(9) When the shift position is at the parking position in a state where the ignition switch 15 is at the accessory position ACC.
(10) When the ignition switch 15 is in the accessory position ACC and the shift position is other than the parking position and the vehicle is stopped.
(11) When the shift position is in the parking position with the ignition switch 15 in the ON position ON.
(12) When the ignition switch 15 is in the ON position ON, the shift position is other than the parking position, the engine is stopped, and the vehicle is stopped.
[0045]
When the lock condition of the steering lock mechanism 17 as described above is not satisfied, the process returns to the standby loop as it is, but when the lock condition is satisfied (“YES” in step S27), a preset delay time t ′ has elapsed. (Step S28), when the delay time t 'has elapsed, step S29 for locking the steering lock mechanism 17 through the steering lock actuator 17a, canceling the engine start permission to the engine control ECU 21 and prohibiting the engine start After step S30 and step S31 for resetting the allowance flag F to “0” are sequentially executed, it is determined whether or not the ignition switch 15 is in the OFF position (step S32).
[0046]
If “YES” is determined in the step S32, the process returns to the standby loop, but if “NO” is determined (when the ignition switch 15 is other than the OFF position OFF), the key lock actuator 19 performs the ignition. After executing step S33 for moving the switch 15 to the OFF position OFF, the process returns to the standby loop. When the ignition switch 15 is moved to the OFF position OFF, the rotation operation of the ignition switch 15 returns to a state where it is prohibited by the key lock actuator 19.
[0047]
As a result of executing steps S22 to S33 as described above, in the state where the allowable flag F is set, that is, in the state where the engine can be started (including the state where the engine is already started), the same tag ID as the vehicle side When the driver who has the ID tag 1 in which the code is stored is separated from the driver's seat by a predetermined distance or more, any of the above-described lock conditions (7) to (12) of the steering lock mechanism 17 is established. Only when the predetermined time delay t 'elapses, the steering lock mechanism 17 is automatically locked and the engine control ECU 21 is switched to a state in which engine start is prohibited. Further, when the ignition switch 15 is other than the OFF position OFF, the ignition switch 15 is automatically returned to the OFF position OFF. In this case, the tolerance flag F is reset.
[0048]
In short, according to the configuration of the present embodiment described above, when the driver having the ID tag 1 storing the same tag ID code as the vehicle side gets into the driver's seat, a preset unlock condition is set. The steering lock mechanism 17 is automatically unlocked and switched to a state where the engine can be started only when the above is established. In such an unlock state of the steering lock mechanism 17, When the driver carrying the ID tag 1 gets off, the steering lock mechanism 17 is automatically locked and the engine only when the preset lock condition of the steering lock mechanism 17 is satisfied. It can be switched to a state where starting is prohibited.
[0049]
Therefore, even when the driver carrying the ID tag 1 gets off without operating the ignition switch 15 to the OFF position OFF, the steering lock mechanism 17 is automatically locked and the engine start is prohibited. Thus, it becomes impossible to move or travel the vehicle, so that safety against vehicle theft can be improved.
[0050]
In this case, the lock condition includes at least a stop state of the vehicle (a state where the shift position is in the parking position corresponds to a stop state of the vehicle), so the steering lock mechanism 17 is inadvertent when the vehicle is in a traveling state. Thus, it is possible to reliably prevent the situation of being locked.
[0051]
Since the control for locking the steering lock mechanism 17 as described above is performed when a preset delay time t ′ has elapsed, the situation in which the lock operation of the steering lock mechanism 17 is performed more frequently than necessary is obviated. Can be prevented.
[0052]
Further, in the case where the steering lock mechanism 17 is controlled as described above, when the ignition switch 15 is in a position other than the OFF position OFF, that is, the driver holding the ID tag 1 turns the ignition switch 15 to the OFF position. When the user gets off the vehicle without operating to the OFF position, the ignition switch 15 is automatically moved to the OFF position OFF, so that convenience in the actual use state is improved.
[0053]
The present invention is not limited to the above-described embodiments, and can be expanded or modified as described below.
As described above, when the control for automatically locking the steering lock mechanism 17 is executed, an alarm may be generated using sound or visual display. In such a configuration, when the driver who has the ID tag 1 gets off without operating the ignition switch 15 to the OFF position OFF, the steering lock mechanism 17 is locked and at the same time an alarm is issued. Therefore, convenience can be improved, such as being able to deal with forgetting to operate the ignition switch 15.
[0054]
An ID tag 1 in which the same tag ID code as that of the vehicle is stored when the vehicle is in a traveling state with the steering lock mechanism 17 unlocked and the engine stopped (the ignition circuit is shut off). When the driver who possesses the vehicle is in a state of being separated from the driver's seat by a predetermined distance or more (when the transmission / reception unit 5 stops reading the ID code that matches the ID code stored on the vehicle side from the ID tag 1) In addition, an alarm may be generated using sound or visual display. According to such a configuration, when a third party who does not have the ID tag 1 moves the vehicle, an alarm is generated, so that safety against vehicle theft can be further improved.
[0055]
Although the remote controller 2 for remotely operating the door lock mechanism 16 is provided, the ID tag 1 may be used to control the lock and unlock operations of the door lock mechanism 16. In addition, a single operation unit having both functions of the ID tag 1 and the remote controller 2 may be provided.
[0056]
In addition, as the lock condition of the steering lock mechanism 17, the contents described in the following (13) to (16) can be added. However, even when the steering lock mechanism 17 is locked based on such a lock condition, when the ignition switch 15 is in a position other than the OFF position OFF, the ignition switch 15 is automatically set to the OFF position OFF. It is desirable to work the function to move.
[0057]
(13) When the ignition switch 15 is in the OFF position OFF or the accessory position ACC and the shift position is in the parking position, and the door lock mechanism 16 is locked by the remote controller 2, the transmission / reception unit 5 is connected to the ID tag 1 When reading the ID code that matches the ID code stored on the vehicle side is stopped.
[0058]
(14) When the ID tag 1 is configured to control the lock and unlock operations of the door lock mechanism 16, when the ignition switch 15 is in the OFF position OFF or the accessory position ACC and the shift position is in the parking position When the door lock mechanism 16 is locked by the ID tag 1.
[0059]
(15) When the ignition switch 15 is in the ON position ON, the shift position is in the parking position, and the engine is stopped, when the door lock mechanism 16 is locked by the remote controller 2, the transmission / reception unit 5 When reading the ID code that matches the ID code stored on the vehicle side from the ID tag 1 is stopped.
[0060]
(16) When the ID tag 1 can control the locking and unlocking operation of the door lock mechanism 16, the ignition switch 15 is in the ON position, the shift position is in the parking position, and the engine is stopped. When the door lock mechanism 16 is locked by the ID tag 1.
[0061]
Although a human body sensor using a microwave as a medium is used as the human detection sensor 8, a human detection sensor may be realized by a human body sensor using ultrasonic waves, infrared rays, or a seat switch provided in a driver's seat. Is. However, the human detection sensor 8 is not necessarily required. For example, if the transmission / reception unit 5 is configured to perform an operation of transmitting a trigger signal at regular intervals, the human detection sensor 8 is not necessary. The installation position of the transmission / reception unit 5 is not limited to the above-described embodiment, and can be provided at an appropriate position in the vehicle compartment, for example, in the seat back of the driver's seat 7.
[0062]
Although the ignition switch 15 operated by the operation dial 15a is provided as the main switch, the ignition switch operated by the engine key may be provided as the main switch. Although the embodiment applied to an automobile using an engine as a power source has been described, the invention can also be applied to an electric car, a hybrid car, and the like.
[0063]
【The invention's effect】
  According to the present invention, as apparent from the above description, when the ID code read from the portable memory carrier matches the ID code registered in advance on the vehicle side, the steering lock mechanism is unlocked by the actuator. When adopting a configuration that switches to a state that allows operation of the main switch, in a state where the steering lock mechanism is unlockedThe reading operation of the ID code by the reading means is continued and the ID code cannot be read from the storage carrier, or the ID code read by the reading means is registered in advance on the vehicle side and When does not matchThe steering lock mechanism is locked on the assumption that a predetermined lock condition is satisfied.Such asBecause of the configuration, the steering lock mechanism can be accurately locked and sufficient safety against vehicle theft can be secured.Such asIt has a beneficial effect.
[Brief description of the drawings]
FIG. 1 is an overall functional block diagram showing an embodiment of the present invention.
FIG. 2 is a flowchart showing the contents of control by the control device.
FIG. 3 is a schematic view of a passenger compartment for explaining an arrangement state of transmission / reception units.
FIG. 4 is a front view of an ignition switch.
[Explanation of symbols]
1 is an ID tag (portable storage carrier), 2 is a remote control, 4 is a control device (control means, auxiliary control means), 5 is a transmission / reception unit (reading means), 15 is an ignition switch (main switch), 16 is a door lock The mechanism, 16a is a door lock actuator, 17 is a steering lock mechanism, 17a is a steering lock actuator (actuator), 19 is a key lock actuator (return mechanism), and 21 is an engine control ECU.

Claims (4)

An actuator for operating the steering lock mechanism;
A main switch that can be selectively operated to an off position for cutting off the accessory circuit and the vehicle driving circuit, an accessory position for forming the accessory circuit, and an on position for forming the vehicle driving circuit;
A portable storage carrier that stores a unique ID code;
Reading means for performing an operation of reading the ID code from the storage carrier;
The steering lock mechanism is provided by the actuator so as to maintain a state in which the operation of the main switch is prohibited at all times, and when the ID code read by the reading means coincides with an ID code registered in advance on the vehicle side. And a control means for switching to a state in which the operation of the main switch is allowed,
Even when the steering lock mechanism is unlocked, the reading means continues to read the ID code and the ID code cannot be read from the storage carrier, or the ID code read by the reading means is on the vehicle side. Auxiliary control means for locking the steering lock mechanism through the actuator on the assumption that a predetermined lock condition is satisfied when the ID code does not match the ID code registered in advance ,
And a return mechanism that moves the main switch to an off position when the auxiliary control means performs a lock control of a steering lock mechanism in a state where the main switch is in a position other than the off position. Steering lock system for vehicles. An actuator for operating the steering lock mechanism;
A main switch that can be selectively operated to an off position for cutting off the accessory circuit and the vehicle driving circuit, an accessory position for forming the accessory circuit, and an on position for forming the vehicle driving circuit;
A portable storage carrier that stores a unique ID code;
Reading means for performing an operation of reading the ID code from the storage carrier;
The steering lock mechanism is provided by the actuator so as to maintain a state in which the operation of the main switch is prohibited at all times, and when the ID code read by the reading means coincides with an ID code registered in advance on the vehicle side. And a control means for switching to a state in which the operation of the main switch is allowed,
Even when the steering lock mechanism is unlocked, the reading means continues to read the ID code and the ID code cannot be read from the storage carrier, or the ID code read by the reading means is on the vehicle side. And an auxiliary control means for locking the steering lock mechanism through the actuator on the assumption that a predetermined lock condition is satisfied when it does not match the ID code registered in advance ,
When the vehicle is in a running state with the steering lock mechanism unlocked and the vehicle running circuit cut off, the ID that matches the ID code registered on the vehicle side from the storage carrier A vehicle steering lock system configured to generate an alarm when the code reading is stopped . 3. The vehicle steering lock system according to claim 1, wherein the lock condition includes at least a stop state of the vehicle. The vehicle steering lock system according to any one of claims 1 to 3 , wherein the auxiliary control means executes control for locking the steering lock mechanism when a preset delay time has elapsed. .

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