JPH11208419A - Vehicle control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle control system capable of controlling specified equipment loaded on a vehicle by a portable transceiver device easy to control a battery and excellent in portability and in security. SOLUTION: A CPU 28 loaded on a vehicle transmits a demand signal constantly through a transmitter 24, and an electronic key control part 22 of a cellular telephone device 12 delivers a specified ID when it receives an ID demand signal through a cellular telephone wireless part 14 of the cellular telephone device 12. The CPU 28 carries out control of vehicle loaded equipment, for example, a door lock control device in accordance with a distance from the cellar telephone device 12 when it receives the ID through a receiver 26. The electronic key control part 22 is built in the cellular telephone device 12 and carries out ID delivery motion by using and driving a battery loaded on the cellular telephone device 12, and it is easy to carry out battery control and excellent in portability and security.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle control system, and more particularly to a vehicle control system for controlling a vehicle-mounted device using a portable transceiver.

[0002]

2. Description of the Related Art In recent years, with the advancement of intelligent vehicles, various systems for controlling various vehicles without bothering the driver have been proposed. For example, Japanese Patent Laid-Open No. 4-3
Japanese Patent Application Publication No. 27668 proposes an automatic door lock device that automatically releases and locks a door lock without performing a door lock operation of a vehicle. This device is called a smart entry system, which detects that the user has approached the vehicle, unlocks the door, and detects that the user has moved away from the vehicle, and locks the door. That is, when the dedicated portable transceiver carried by the user receives the code request signal transmitted from the vehicle, the vehicle returns a predetermined ID code. When the vehicle determines that the ID is legitimate, the door is opened. unlock. Further, the door is locked when the predetermined ID cannot be confirmed. Therefore, the authorized user can automatically release the door lock at the timing of getting into the vehicle without performing any operation. Similarly, it is possible to lock the door by leaving the vehicle without performing any operation, and it is released from troublesome work such as forgetting to lock the door and releasing the door lock.

[0003]

However, in the above-described smart entry system, the portable transmission / reception device brought by the user always receives the code request signal from the vehicle regardless of whether the vehicle is used or not. It is necessary to keep the state, and the battery consumption of the portable transmission / reception device is high. Normally, a portable transmitting / receiving device can only be mounted with a small battery (e.g., a mercury battery) because portability is required, and its life is about one year, so that attention must be paid to battery management. There's a problem.

[0004] In today's society, IDs other than vehicles are used.
There is a problem in that the number of devices that need to be used increases, the number of IDs carried by the user increases, and carrying and management become complicated. Furthermore, even in a vehicle interior, the number of on-vehicle devices operated by a remote controller such as an audio and navigation device is increasing, and a user needs to keep a large number of portable transmission / reception devices close to him, which causes a problem that management becomes complicated. . Furthermore, there is a problem that the portable transmitting / receiving device may be lost or stolen, and it is difficult to secure security.

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a specific device mounted on a vehicle by a portable transmission / reception device which can easily manage a battery and has excellent portability and security. To provide a vehicle control system capable of controlling the vehicle.

[0006]

In order to achieve the above object, a first aspect of the present invention provides communication between a portable transceiver and an on-vehicle device to control the operation of a specific device mounted on a vehicle. In the controlling vehicle control system, the portable transceiver is a portable telephone device provided with a public line antenna, and the portable telephone device sends a predetermined ID to a vehicle without connecting to a public line. Having transmission means,
The operation of the specific device mounted on the vehicle is controlled by the ID.

Here, the transmitting means may be shared with the transmitting means of the portable telephone device or may be provided separately.

According to this configuration, the ID for controlling the vehicle can be transmitted by the portable telephone device that is easy to carry and does not make the user feel uncomfortable, so that the uncomfortable feeling and complexity of the ID portable can be eliminated. In addition, the charging operation of the mobile phone device can be performed frequently without a sense of incongruity.
Since power for driving the transmitting means for transmitting D can be obtained, it is not necessary to strictly manage the battery for transmitting ID, thereby facilitating the management.

According to a second aspect of the present invention, in the first aspect, the portable telephone device has code receiving means for receiving a code request signal transmitted from a vehicle. The transmission means transmits a pre-stored ID when the code reception means receives the code request signal.

[0010] According to this configuration, ID transmission is performed only when a code request signal is received, so that battery consumption can be reduced.

According to a third aspect of the present invention, in the first or second aspect, the portable telephone device further comprises a charge amount detecting means for detecting a charge amount of a power supply; A determination unit for determining whether a mobile phone can be used or a control of a specific device mounted on a vehicle in accordance with the amount, wherein the determination unit prohibits the use of the mobile phone when the charge amount becomes equal to or less than a predetermined value. It is characterized by.

[0012] Here, the charge amount being equal to or less than the predetermined value is a charge amount capable of transmitting an ID for controlling a specific device, for example, 10 mAh or less. According to this configuration, since the mobile phone function that consumes a large amount of battery is stopped while leaving the predetermined charge amount, it is possible to reliably prevent the control of the specific device of the vehicle from being disabled.

According to a fourth aspect of the present invention, there is provided a portable telephone device according to any one of the first to third aspects, further comprising a transmission prohibiting unit for prohibiting the transmission of the ID by a predetermined operation. It is characterized by the following.

Here, the transmission prohibiting means includes, for example,
The sending operation is prohibited using the matching of a password and a specific pattern. According to this configuration, the ID transmission operation by a third party who does not know the password or the specific pattern can be easily prohibited, and the security of the vehicle can be easily improved.

In order to achieve the above object, a fifth invention is the fourth invention, wherein the transmission inhibiting means is a dial operation inhibiting means for inhibiting a dial operation of the portable telephone device. I do.

Here, the dial operation inhibiting means includes:
For example, a dial lock function is used to stop all functions of the mobile phone except for a call function at the time of an incoming call by inputting a specific password. According to this configuration, only the user can use the function that the mobile phone device has conventionally equipped.
It is possible to easily prohibit and permit transmission of D.

In order to achieve the above object, according to a sixth aspect based on the first to fifth aspects, the vehicle comprises: a receiving means for receiving an ID transmitted from the portable telephone device; Control means for controlling the operation of the specific device mounted on the vehicle based on the received ID.

According to this configuration, the specific device mounted on the vehicle can be operated by the vehicle control ID transmitted from the portable telephone device which is easy to carry and does not make the user feel uncomfortable.

To achieve the above object, according to a seventh aspect based on the sixth aspect, the vehicle transmits a code request signal requesting transmission of an ID to the portable telephone device. It has a transmitting means.

According to this configuration, the ID can be transmitted to the portable telephone device only when the portable telephone device receives the code request signal, so that the battery consumption of the portable telephone device can be reduced. Can be reduced.

According to an eighth aspect of the present invention, in accordance with the sixth or seventh aspect, the control means includes a door lock control device, an engine start control device, a steering lock control device, and a driving environment. It is characterized by controlling at least one of the control devices.

Here, the driving environment control device is a control device for adjusting a user's seat position, mirror position, steering wheel tilt position and the like registered in advance.

According to this configuration, it is possible to easily control devices that need to be prepared before the user gets into the vehicle by sending an ID from the portable telephone device.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings.

FIG. 1 is a conceptual diagram showing the configuration of a vehicle control system 10 according to the present embodiment. In the present embodiment, the transmission means of the ID required to control each control device on the vehicle side is mounted on the mobile phone device 12 which has become widespread today.

The portable telephone device 12 is a portable telephone radio unit 1 which can be connected to a public line via a public line antenna 12a.
4, a mobile phone control unit 16 for controlling the entire mobile phone device 12, a baseband unit 18 for performing voice processing and various signal processing when using the mobile phone, and power for driving the mobile phone device 12. And a battery 20 to be supplied. Further, the mobile phone control unit 16 and the battery 2
0 is connected to an electronic key control unit 22 that controls a predetermined ID in order to control a specific device mounted on the vehicle. The electronic key control unit 22 performs control to send a predetermined ID when a code (ID) request signal transmitted from the vehicle described later is acquired. In the case of the example of FIG. 1, an example in which the electronic key control unit 22 functions using the transmission function and the battery function of the mobile phone device 12 will be described.

On the other hand, the mobile phone 12
A transmitter 24 as request transmission means for transmitting an ID request signal for requesting transmission of an ID;
Responds to the ID request signal transmitted by the mobile phone 1
2, a receiver 26 as a receiving means for receiving the ID transmitted from the communication device 2, and the transmitter 24 and the receiver 26 are connected to each other, and control various control devices mounted on the vehicle described later based on the received ID. CPU 28 is disposed.

The control devices controlled by the CPU 28 include, for example, a door lock control device for controlling unlocking and locking of a door, an engine start control device (including an electronic fuel injection device, etc.), and a steering device for preventing theft. In addition to a lock control device and the like, a driving environment control device such as a tilt steering control device, a seat position control device, and a mirror position control device for controlling a tilt position of a steering wheel set by a user (driver) in advance.

An EEPROM 30 for storing a preset ID is connected to the CPU 28.
The ID stored in the EEPROM 30 is the ID of the transmitter 2.
4 when generating an ID request signal to be transmitted by the
Is used when making an inquiry with the received ID. Also,
Since writing and rewriting of the EEPROM 30 are free, a desired ID can be added or changed according to a predetermined procedure. For example, when one vehicle is used by a plurality of users, for example, when the vehicle is used by a family member or at a company, an ID can be set for each user.

Next, an example of the operation of the vehicle control system, for example, door lock release, will be described with reference to the flowchart of the portable telephone device 12 shown in FIG. 2 and the flowchart of the vehicle shown in FIG. 3 in addition to FIG. (Smart entry) will be described. In the case of the present embodiment, the vehicle-side transmitter 24, the receiver 26, the CPU 28, and the like are driven by a battery (not shown) mounted on the vehicle, always stand by in a standby state, and receive signals from the vehicle-side transmitter 24. It is assumed that an ID request signal for requesting transmission of a predetermined ID is always transmitted toward the periphery of the vehicle.

As shown in FIG. 2, the electronic key control unit 22 of the mobile phone device 12 always determines whether or not the dial lock function is ON via the mobile phone control unit 16 (S100). ). Here, the dial lock function prohibits the operation of all or a part of the functions of the mobile phone device 12. For example, when all functions are stopped, all functions of the mobile phone device (including functions related to ID control) other than the call function at the time of an incoming call to prohibit use by a third party possessed by the mobile phone device are conventionally used. You can use what stops. When a part of the functions is stopped, a lock function may be separately provided so that only the function related to the electronic key control unit 22 is prohibited.
In any case, it is preferable that the setting and release can be performed by inputting a specific password by operating an input key of the mobile phone device 12. As a result, when the dial lock is set by the user's operation, the operation of the vehicle control system according to the present embodiment is also prohibited. For example, it is possible to prevent a third party who has acquired the mobile phone device 12 from operating the vehicle. be able to.

When the electronic key control unit 22 determines that the dial lock of the portable telephone device 12 is OFF,
ID transmitted from the vehicle via the mobile phone wireless unit 14
It is determined whether a request signal has been received (S10).
1). When confirming the reception of the ID request signal, the electronic key control unit 22 performs a predetermined ID stored in a memory or the like of the mobile phone device 12 via the mobile phone wireless unit 14 (S1).
02). In addition. If the dial lock is determined to be ON in (S100), monitoring of the operation state of the dial lock is continued. If the ID request signal cannot be received in (S101), that is, it is determined that the vehicle to be controlled does not exist within a predetermined range (for example, within 100 m line of sight), and the process returns to (S100) and dials. Continue monitoring the lock operation status.

On the other hand, the CPU 28 of the vehicle sends an ID request signal via the transmitter 24 at predetermined intervals as described above (S200). Then, the CPU 28 determines whether or not the ID transmitted from the mobile phone device 12 has been received by the receiver 26 in response to the transmitted ID request signal (S201). If the ID cannot be received,
When it is determined that the mobile phone device 12 is not within the predetermined range or the mobile phone device 12 is dial-locked, the timer T1 (for example, 10 seconds) is operated (S2).
02) After a predetermined interval, the flow returns to (S200), and the ID request signal is transmitted again.

If the ID has been successfully received in (S201), the CPU 28 transmits the received ID to the EEPROM.
The ID is collated with the ID registered in M30 (S203), and it is determined whether or not they match (S204). If the IDs do not match, it is determined that the mobile phone device 12 (user) approaching the vehicle is not an authorized user, and via (S202)
After a predetermined time, an ID request signal is transmitted again (S20).
0), perform the following ID collation work. On the other hand, if the IDs match, it is determined that the mobile phone device 12 of the authorized user has approached the vehicle, and it is determined whether the distance L from the vehicle to the mobile phone device 12 is a predetermined distance, for example, 10 m or more. Perform (S205). Distance L to mobile phone device 12
Is determined based on the electric field strength of the received ID carrier, the delay time from when the ID request signal is transmitted to when the ID is received, and the like. If the distance L to the mobile phone device 12 is 1
If it is 0 m or more, it is difficult to determine whether the user actually gets into the vehicle or not (S202), and after a predetermined time has elapsed, the process from (S200) is repeated to monitor the approach of the authorized user.

When the CPU 28 determines in (S205) that the mobile phone device 12 has entered within 10 m of the vehicle, the CPU 28 further determines whether the user (mobile phone device 12) has approached the vehicle, for example, within 3 m. Is determined (S
206). If the mobile phone device 12 is not approaching within 3 m, that is, if 3 m <L <10 m, an ID request signal is frequently transmitted in order to accurately grasp the timing at which the user attempts to get into the vehicle. There is a need. Therefore, the timer T2 (for example, one second) is operated (S207), and the processing from (S200) onward is repeated in a short cycle. It should be noted that the timers T1 and T2 are changed according to the distance to the mobile phone device 12 and the reception state of the ID, and
By changing the transmission interval of the request signal, the ID transmission operation of the portable telephone device 12 can be performed frequently only when approaching. as a result,
It is possible to prevent the battery of the mobile phone device 12 from being wasted while grasping the exact position of the mobile phone device 12.

If the CPU 28 determines in step S206 that the distance L to the portable telephone device 12 is within 3 m,
The CPU 28 controls the door lock control device to enter the smart entry standby state (S207). At this point, the door lock may be released, but in the case of the present embodiment, the door lock release (drive of the door lock relay or the like) is not yet performed in the smart entry standby. For example, there is a case where the user having the mobile phone device 12 approaches within 3 m around the vehicle (walking on the side of the vehicle, etc.) without intention to get into the vehicle, and the locking and unlocking of the door lock is repeated at this time ( Chattering) is not preferable, and security is not preferable. For this reason, in the smart entry standby state, for example, it is preferable that the driving of a sensor for detecting an operation of the user trying to get into the vehicle (an operation of holding the hand over the door knob) be started.

Then, the CPU 28 turns on the sensor.
It is determined whether or not the operation has been performed (S208). If the sensor is turned on, the door is unlocked immediately before the user pulls the door knob (S209). If the sensor is not turned on, the flow returns to (S207), and the confirmation of the approaching operation of the mobile phone device 12 is repeated. Of course, even after the smart entry standby state, the sensor is ON for a predetermined time.
If not, the smart entry standby is canceled (S207), and the processing from (S200) onward is repeated. When it is confirmed that the mobile phone device 12 is separated from the vehicle by a predetermined distance (for example, 3 m),
The smart entry standby state is released. When the door is unlocked, the door is locked.

As described above, by frequently detecting the approach state of the portable telephone device 12 to the vehicle based on the ID collation, it is possible to control the smart entry without a sense of discomfort. Also, the ID of the mobile phone device 12 is frequently changed.
Even if the transmission request is frequently made, the battery for transmitting the ID can be supplied from the mobile phone device 12 side, so that the ID transmission cannot be disabled. In addition, the mobile phone device 12 is charged relatively frequently in order to make a good telephone call through a public line. This charging work,
For the user, since it is an operation that is normally performed in daily life without feeling uncomfortable, the battery for sending the ID is securely secured, and the battery management for sending the ID can be easily performed.

As in the present embodiment, even when the battery of the portable telephone device 12 is used for ID transmission, if the portable telephone device 12 is connected to the public line connection for a long time, the battery becomes insufficient before charging. ID transmission may not be possible. In this case, vehicle control by the mobile phone device 12 cannot be performed. Therefore, in the present embodiment, the mobile phone control unit 16 shown in FIG. 1 has a charge amount detection unit and a determination unit that performs a mobile phone use determination and a vehicle-mounted specific device control determination based on the detection result. doing. That is, as shown in FIG. 4, when the battery is fully charged, the cellular phone control unit 16
All functions such as the D transmission function (including reception of the ID request signal) are permitted, but a predetermined amount of battery (for example, 10 mA
h) When the following occurs, the mobile phone function is stopped, and at least a battery for operating the ID transmission function is secured to avoid the above-described inconvenience. Simultaneously with or immediately before the stop of the mobile phone function, the mobile phone control unit 16 notifies the user of the need for charging using a means such as an alarm. In addition, after the mobile phone function is stopped, if the electronic key control unit 22 detects that the charge amount further decreases and falls below a predetermined amount, smart entry by automatically transmitting an ID is also prohibited, and a normal switch is used. The mode may be switched to ID transmission by operation, that is, a so-called keyless entry mode.

In the example of FIG. 1, a case has been described in which the transmission / reception operation of the ID (electronic key) is performed via the portable telephone radio section 14 of the portable telephone device 12. In this case, the mobile phone device 1
2 is connected to the public line, the communication with the vehicle for transmitting the ID is performed in the time of the vacant slot in the TDMA (time division multiple access) method, so that the above-described flowchart and the like can be realized. The operation described in is possible. In this case, it is preferable to perform communication in an extremely short time using a blank space between slots or to perform communication at a reduced power level so as not to interfere with other communication. . A dedicated communication channel may be provided for communication with the vehicle.

As shown in FIG. 5, a dedicated electronic key transmitting / receiving unit 32 may be provided for the electronic key control unit 22. Also, in the examples of FIGS. 1 and 5, the battery 20 of the mobile phone device 12 is divided internally for mobile phone use and for electronic key use. At times, both may be charged.

In the flowchart of FIG. 3, an example in which the door lock control device is controlled by using the ID has been described. However, other vehicle-mounted devices can be similarly controlled by using the ID. For example, in (S209) of FIG. 3, the driving environment control device that adjusts a seat position and a mirror position that are set in advance by the user (driver) and that are suitable for the user at the same time that the door is unlocked. Etc. may be operated. Since the mobile phone device 12 is usually owned by an individual, an ID can be set for each user. Therefore, individual adjustments are possible according to the user's physique and preference. Further, when a plurality of mobile phone devices 12 having individual IDs are registered for the same vehicle,
By properly using the mobile phone device 12 for business or private use, vehicle management can be easily performed. That is, by recognizing the ID, the travel distance, travel time, fuel cost, and the like can be separately managed in accordance with the user and the use situation. Further, since the mobile phone device 12 and the CPU 28 of the vehicle can perform the ID collation work even after the user has completed the boarding of the vehicle, the CPU 28 executes the door opening operation after the process of the flowchart in FIG. After checking a door closing operation or the like with a sensor or the like, or after confirming that the mobile phone device 12 is connected to a charger in the vehicle compartment, the ID is again collated, and a steering lock control device for preventing theft is performed. And release of the immobilizer, permission of operation of the engine start control device, and the like. This ID
The security of the vehicle can be easily improved by re-verification. Also, at this time, it is possible to confirm that a specific user has sat on the seat by ID collation, so that it is also possible to adjust the tilt position of the steering and the like.

Further, by confirming the ID between the portable telephone device 12 and the CPU 28, the portable telephone device 12
Can easily exchange data with on-board equipment while ensuring security. For example, it becomes possible to transfer and use the memory contents (for example, data in a telephone directory) of the mobile phone device 12 to the vehicle whose ID has been confirmed. For example, by transferring the telephone number of the person registered in the memory of the mobile telephone device 12 to the navigation device of the vehicle, the address is specified based on the telephone number and a map of the surrounding area is displayed, and smooth route guidance and the like are performed. It can be carried out. Conversely, the information possessed by the in-vehicle navigation device can also be transferred to the specific mobile phone device 12, and the data on the navigation map can be transmitted to a third party via the mobile phone device 12 connected to the public line. Data can be transmitted accurately in an extremely short time.

The portable telephone device 12 may be accessed from an external telephone via a public line so that the ID function of the portable telephone device 12 can be operated according to a predetermined procedure. For example, even if both the vehicle and the mobile phone device 12 capable of ID verification are stolen, the mobile phone device 1
When the authorized user externally operates the device 2 according to a unique access procedure, it is possible to operate various anti-theft functions such as an immobilizer of a vehicle having the same ID. In addition, since the location of the mobile phone device 12 can be limited to the area of the public base station, it is possible to prevent theft by ID verification and to detect a stolen vehicle early.

In the above-described embodiment, the ID request signal is transmitted from the transmitter 24 on the vehicle side to the portable telephone device 12 and the ID is transmitted from the portable telephone device 12. Alternatively, a switch function for transmitting the ID to the mobile phone device 12 may be provided. By operating the switch function, the user can send out an ID as necessary and operate a specific device (a door lock, an engine start control device, a steering lock device, etc.) mounted on the vehicle.

[0046]

According to the present invention, there is provided a vehicle control system capable of controlling a specific device mounted on a vehicle by a portable transmission / reception device which is easy to manage a battery and has excellent portability and security. Can be.

[Brief description of the drawings]

FIG. 1 is a configuration conceptual diagram of a vehicle control system according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of the vehicle control system according to the embodiment of the present invention on the mobile phone device side.

FIG. 3 is a flowchart illustrating an operation on the vehicle side of the vehicle control system according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating battery management on the mobile phone side of the vehicle control system according to the embodiment of the present invention.

FIG. 5 is an explanatory diagram illustrating a configuration of another mobile phone device of the vehicle control system according to the embodiment of the present invention.

[Explanation of symbols]

10 vehicle control system, 12 mobile phone device, 14
Mobile phone radio section, 16 mobile phone control section, 18 baseband section, 20 battery, 22 electronic key control section, 24
Transmitter, 26 Receiver, 28 CPU, 30 EEP
ROM, 32 electronic key transmission / reception unit.

Claims (8)

[Claims] 1. A vehicle control system for controlling operation of a specific device mounted on a vehicle by performing communication between a mobile transceiver and an on-vehicle device, wherein the mobile transceiver includes a mobile phone having a public line antenna. A telephone device, wherein the mobile telephone device has a transmitting unit that transmits a predetermined ID to a vehicle without being connected to a public line, and controls an operation of a specific device mounted on the vehicle by the ID. A vehicle control system, characterized in that: 2. The system according to claim 1, wherein said portable telephone device has code receiving means for receiving a code request signal transmitted from a vehicle, and said transmitting means includes a code request signal transmitted from said vehicle. A vehicle control system for transmitting an ID stored in advance when receiving a vehicle ID. 3. The system according to claim 1, further comprising: a charging amount detecting unit configured to detect a charging amount of a power supply; and determining whether the mobile phone can be used according to the charging amount. A vehicle control system comprising: a determination unit configured to perform determination of controllability of a specific device, wherein the determination unit prohibits use of the mobile phone when the charge amount becomes equal to or less than a predetermined value. 4. The vehicle control system according to claim 1, wherein the mobile phone device has a transmission prohibiting unit that prohibits transmission of an ID by a predetermined operation. 5. The vehicle control system according to claim 4, wherein said transmission prohibition unit is a dial operation prohibition unit for prohibiting a dial operation of a mobile phone device. 6. The system according to claim 1, wherein the vehicle includes a receiving unit that receives an ID transmitted from the mobile phone device, and a vehicle based on the ID received by the receiving unit. Control means for controlling the operation of a specific device mounted on the vehicle. 7. The vehicle control system according to claim 6, wherein the vehicle has a request transmission unit that transmits a code request signal for requesting transmission of an ID to the mobile phone device. . 8. The system according to claim 6, wherein the control means controls at least one of a door lock control device, an engine start control device, a steering lock control device, and a driving environment control device. A vehicle control system, characterized in that: