WO2017104373A1

WO2017104373A1 - Vehicle control system

Info

Publication number: WO2017104373A1
Application number: PCT/JP2016/084868
Authority: WO
Inventors: 真史小嶋
Original assignee: 株式会社デンソー
Priority date: 2015-12-15
Filing date: 2016-11-25
Publication date: 2017-06-22
Also published as: JP2017110373A

Abstract

A vehicle control system comprises a vehicular on-board device (2) and a mobile device (3). By way of wireless communication with the mobile device, a comparison information acquisition unit (20) of the vehicular on-board device acquires comparison information and a position information acquisition unit (20) of the vehicular on-board device acquires position information. A comparison unit (20) of the vehicular on-board device compares and authenticates the mobile device, and a position specification unit (20) specifies the current position of the mobile device. An unlocking control unit (20) of the vehicular on-board device performs unlocking control to place a door (10) of a vehicle (100), the door being in a locked state and an unlocking prohibited state, into an unlocking authorized state in which the door can be unlocked by a prescribed unlocking operation when the mobile device has been compared and authenticated and the current position of the mobile device is within a predetermined unlocking permitted region (R3).

Description

Vehicle control system

Cross-reference of related applications

This application is based on Japanese Application No. 2015-244165 filed on Dec. 15, 2015, the contents of which are incorporated herein by reference.

The present disclosure relates to a vehicle control system.

Two-way communication is performed between the portable device owned by the user and the in-vehicle device mounted on the vehicle. The in-vehicle device authenticates the portable device, and based on the result, the door is unlocked / locked, and the engine is started. For example, a vehicle control system that permits operation control of a predetermined function of the vehicle is widely used. The authentication process is disclosed in Patent Document 1 and the like. In the vehicle control system that performs such authentication processing by wireless communication, the door cannot be unlocked and the engine cannot be started unless the portable device corresponding to the in-vehicle device is authenticated.

JP 2008-150836 A

However, in such a vehicle control system, there is a problem that it is desired to reduce a user's operation burden such as omitting a door unlocking operation, a door opening operation, and an engine starting operation by the user. In order to solve this problem, it is necessary to improve security as compared with the prior art. However, content that forces the user to perform a new addition operation, such as password authentication, increases the operation burden on the user and does not solve the problem of reducing the operation burden on the user.

This disclosure is intended to provide a vehicle control system that can reduce the burden of user operation for unlocking and opening the vehicle and starting the engine while ensuring the security of the vehicle.

According to one aspect of the present disclosure, a vehicle control system includes an in-vehicle device mounted on a vehicle and a portable device that stores verification information unique to itself. The in-vehicle device includes a collation information acquisition unit, a collation unit, a position information acquisition unit, a position specifying unit, and an unlocking control unit.

The verification information acquisition unit acquires verification information of the portable device by wireless communication with the portable device. A collation part collates the acquired collation information and determines whether it is a portable machine corresponding to a vehicle. The position information acquisition unit acquires position information of the portable device by wireless communication with the portable device. The position specifying unit specifies the current position of the portable device based on the acquired position information.

In the unlocking control unit, the current position of the portable device identified by the collating unit and identified by the position identifying unit is determined as a partial area within the region that can be identified by the position identifying unit. When it is within the unlocking permission area, unlock control is executed. In the unlocking control, the door of the vehicle in the locked state is set in the unlocked state, or the door of the vehicle in the locked state and in the unlocking prohibited state is set in the unlocking permitted state that can be unlocked by a predetermined unlocking operation. Alternatively, the door of the vehicle in the locked state is unlocked and opened.

According to one aspect of the present disclosure, the position of the portable device is specified together with the verification of the portable device, and the door can be unlocked only when the portable device is in a predetermined unlocking permission area. Therefore, the door can be unlocked only by performing verification verification of the portable device, and the door can be unlocked in such a way that the user's standing position when unlocking the door is also included in the condition. As a result, the security level is further increased. On the other hand, the condition of the user's standing position when unlocking the door is not a condition that imposes a large burden on the user.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. In the drawing
It is a block diagram schematically showing the configuration of a vehicle control system, It is a figure showing a setting example of a position identifiable area, It is a diagram showing a configuration example of communication data between the in-vehicle device and the portable device, It is a flowchart for explaining communication processing related to door unlocking control by an in-vehicle device, It is a data table which shows the position of the portable machine with respect to RSSI, It is a flowchart explaining the communication process of a portable device, It is a figure explaining the procedure for performing unlocking control by the process of FIG. It is a figure explaining the procedure for performing unlocking control by the process of FIG. 4 following FIG. It is a figure explaining the procedure by which unlocking control is not performed by the process of FIG. It is a flowchart for explaining communication processing related to door locking control by an in-vehicle device, It is a figure explaining the 1st example of the procedure for setting an unlocking permission field by processing of Drawing 10, It is a figure explaining the 2nd example of the procedure for setting an unlocking permission area | region by the process of FIG. It is a figure explaining the modification of the procedure for setting an unlocking permission area | region by the process of FIG. It is a figure showing a setting example of a position identifiable area, It is a diagram showing a configuration example of communication data between the in-vehicle device and the portable device, It is a flowchart for explaining communication processing related to door unlocking control by an in-vehicle device, It is a figure explaining the procedure for performing unlocking control by the process of FIG. It is a figure explaining the procedure by which unlocking control is not performed by the process of FIG. It is a figure which shows the 1st setting example of the passage route for unlocking, It is a figure which shows the 2nd setting example of the passage route for unlocking, It is a figure which shows the 3rd example of a setting of the passage route for unlocking, It is a figure which shows the 4th example of a setting of the passage route for unlocking, It is a figure which shows the 5th example of a setting of the passage route for unlocking, It is a figure which shows the 6th example of a setting of the passage route for unlocking, It is a flowchart for explaining communication processing related to door locking control by an in-vehicle device, It is a figure explaining the 1st example of the procedure for setting the passage route for unlocking by the processing of FIG. 25, FIG. 27 is a diagram for explaining a first example of a procedure for setting the unlocking passage route by the processing of FIG. 25 following FIG. It is a flowchart for explaining a first modification of communication processing related to door unlocking control by an in-vehicle device, It is a flowchart for explaining a second modification of the communication process related to the door unlocking control by the in-vehicle device, The figure explaining the manual setting of the unlocking permission area | region and the passage route for unlocking.

As shown in FIG. 1, the vehicle control system 1 is a so-called smart entry system including an in-vehicle device 2 mounted on a vehicle 100 (see FIG. 2) and a portable device 3 possessed by the user.

The in-vehicle device 2 includes an ECU 20, an

exterior transmission unit

23 a, 23 b, 23 c (see FIG. 2), an interior transmission unit 23 r, and a reception unit 25 connected to the ECU 20.

The ECU 20 includes a well-known CPU 21, a memory 22 configured by a nonvolatile storage medium for storing various information such as an in-vehicle device control program and a verification master code, and an I / O 26 that is a signal input / output circuit. Various functions of the in-vehicle device 2 are realized by the CPU 21 executing the in-vehicle device control program.

The vehicle

interior transmission units

23a, 23b, and 23c include antennas, and are attached, for example, in the center pillar of the vehicle 100 as in 23a and 23b or in the trunk as in 23c (see FIG. 2). The vehicle interior transmitter 23r is attached to the vehicle interior (see FIG. 2) such as the center console, for example. These transmitters 23 (generic names of 23a, 23b, 23c, and 23r, the same applies hereinafter) are used for a reference information request signal and a position described later in the vehicle interior or interior of the vehicle using VLF (very long wave) radio waves (for example, 22 KHz). An information request signal is transmitted. Thereby, these transmission parts 23 can form the communicable area | region R23 which can receive the signal to transmit in the vehicle periphery. The communicable region R23 of each transmission unit 23 in the present embodiment can be set as a region within about 3 m and a maximum of 6 m from the antenna.

As shown in FIG. 2, the communicable region R23 of each transmitter 23 is an area where each portable signal can be received by the portable device 3, and is formed as a region extending from the antenna of each transmitter 23. The communicable region R23 of each transmitter 23 partially overlaps with the communicable region of the other transmitters 23. In the present embodiment, a region R2 in which at least three communicable regions R23 overlap among the communicable regions R23 is the position identifiable region R2 of the portable device 3.

The receiving unit 25 includes an antenna and is attached to, for example, the vehicle interior, and receives a response signal transmitted from the portable device 3 using an RF (high frequency) band radio wave (for example, 315 MHz) from outside the vehicle interior. . By using radio waves in the RF band, even if the signal strength of the response signal is relatively weak, a corresponding communication distance (for example, 30 to 100 m) can be obtained, and the response signal can be received more reliably.

Further, the in-vehicle device 2 is connected to the door unit 5 via a communication line 6 such as a LAN, for example.

The door unit 5 includes a lock mechanism 50, a touch sensor 51, a switch 52, and a door opening / closing drive unit 53. The lock mechanism 50 locks or unlocks the door 10. The touch sensor 51 is an unlocking operation unit for unlocking the door 10. The touch sensor 51 is mounted on the door handle 11, for example, and detects that the user has touched a predetermined area on the back surface of the door handle 11. This contact operation is an unlocking operation for unlocking the door 10. The switch 52 is provided in, for example, the door handle 11 and detects that the user has pressed it. In the switch 52, this pressing operation becomes a locking operation for locking the door 10. The door opening / closing drive unit 53 performs an opening drive for automatically opening the unlocked door 10 and a closing drive for automatically closing the opened door 10.

The door unit 5 in FIG. 1 illustrates one of a plurality of doors 10 (a driver's seat side door, a passenger seat side door, a rear seat right door, a rear seat left door, a trunk, and a back door) of the vehicle 100. It is a thing.

The in-vehicle device 2 is connected to the engine control unit 7 via a communication line 6 such as a LAN.

The engine control unit 7 includes an ECU 70 and a start switch 71. The ECU 70 is a well-known unit including a CPU, a memory, and an I / O (not shown), and governs engine start control. The switch 71 is a start operation unit for starting the stopped engine. The switch 71 is provided near the door handle 11, for example, and detects that the user has pressed it. This pressing operation is a starting operation for starting the engine.

The portable device 3 includes a control unit 31, a memory 32, a reception unit 33, a measurement unit 34, a transmission unit 35, and an operation unit 36 connected to the control unit 31. The control unit 31 is configured as a computer including a well-known CPU or the like (not shown). The CPU implements various functions of the portable device 3 by executing the portable device control program stored in the memory 32. The memory 32 is composed of a nonvolatile storage medium such as a flash memory, for example, and stores data necessary for the operation of the portable device 3 such as a portable device control program and an ID code for identifying the portable device 3.

The receiving unit 33 includes an antenna, and receives the collation information request signal and the position information request signal from the transmission unit 23 of the in-vehicle device 2. When receiving the position information request signal for measuring RSSI, the measurement unit 34 measures the RSSI of the position information request signal based on, for example, a voltage induced in the antenna of the reception unit 33.

The transmission unit 35 includes an antenna. When the reception unit 33 receives the verification information request signal, the transmission unit 35 transmits a response signal including an ID code and an RSSI measurement value (details will be described later) by radio waves in the RF band.

The operation unit 36 includes a switch used for executing a known remote keyless entry function. When the user operates the operation unit 36 in the communicable region R23 outside the passenger compartment of the vehicle 100, for example, the lock mechanism 50 can be unlocked / locked.

Hereinafter, the door unlocking process executed by the vehicle control system 1 will be described with reference to FIG.

First, when a predetermined transmission timing comes (S1: YES), the ECU 20 causes each transmitting unit 23 to transmit a collation information request signal Q1 and position information request signals Sa, Sb, Sc, Sr (S2). Thereby, ECU20 functions as a collation information request part and a position information request part. In the present embodiment, as shown in FIG. 3, after transmitting the collation information request signal Q1 from all the transmitters 23 at the same time, the position information request signals Sa, Sb, Sc, and Sr are transmitted in order.

On the other hand, the portable device 3 is executing the communication process shown in FIG. As a result of this communication processing, the portable device 3 existing in the communicable region R23 is requested by each signal when these request signals Q1, Sa, Sb, Sc, Sr are received by the receiving unit 33. A response signal A1 including the received information is transmitted.

The response signal A1 from the portable device 3 includes the collation information requested by the collation information request signal Q1 and the position information requested by each position information request signal Sa, Sb, Sc, Sr. The collation information is an ID code unique to the portable device 3 stored in the memory 32. The position information is an RSSI (Received Signal Strength Indicator) that is measured by the measurement unit 34 when a position information request signal is received from each transmission unit 23. That is, the position information request signal is a measurement signal for causing the measurement unit 34 to measure RSSI.

If at least three of the RSSIs of the position information request signals transmitted from the transmitters 23 can be acquired, the position of the portable device 3 can be determined based on the principle of triangulation. As shown in FIG. 5, the memory 22 stores a data table in which the portable device 3 receives the RSSI of the position information request signal transmitted from each transmission unit 23 and the position information of the portable device 3. The ECU 20 refers to this data table to identify the current position of the portable device 3. In FIG. 5, the position of the portable device 3 is determined only when at least three of the RSSIs of the position information request signals transmitted from the transmitters 23 can be acquired.

Here, communication processing of the portable device 3 will be described with reference to FIG.

The portable device 3 receives the collation information request signal Q1 at the receiving unit 33. By executing this, the receiving unit 33 functions as a request receiving unit for collation information. When the verification information request signal Q1 is received (S11: YES), the control unit 31 returns from the power saving mode (for example, the sleep mode) to the normal mode (S12). When the verification information request signal Q1 is received (S11: YES), if the control unit 31 is in the normal mode, the normal mode continues as it is (S12).

And the portable device 3 receives the position information request signals Sa, Sb, Sc, and Sr following the collation information request signal in the receiving unit 33. Thereby, the receiving unit 33 functions as a request receiving unit for position information. When the position information request signals Sa, Sb, Sc, Sr are received (S13: YES), the measurement unit 34 measures the RSSI of the position information request signals Sa, Sb, Sc, Sr (S14). Thereby, the measurement unit 34 functions as a current position measurement unit. And the control part 31 reads the collation information requested | required by the collation information request signal Q1 from the memory 32, and the response signal A1 containing the collation information read and RSSI of each position information request signal Sa, Sb, Sc, Sr Is transmitted from the transmitter 35 (S15). Thus, the control unit 31 functions as a collation information transmission unit and a position information transmission unit.

The response signal A1 includes the RSSIs of the position information request signals Sa, Sb, Sc, and Sr in a form that reveals the transmission unit 23 that is the source of the position information request signals Sa, Sb, Sc, and Sr. ing. For example, the response signal A1 of the present embodiment is data in which the respective RSSIs are stored in the order in which the position information request signals Sa, Sb, Sc, and Sr are received. Note that the position information request signals Sa, Sb, Sc, and Sr may include data that can determine which transmission unit 23 has transmitted the data, and the data may be included in the response signal A1.

After transmitting the response signal A1, the control unit 31 of the portable device 3 shifts itself to the power saving mode (S16) and ends this process. Also, when the position information request signals Sa, Sb, Sc, Sr are not received within a predetermined time after receiving the verification information request signal Q1 (S14: NO), the process proceeds to the power saving mode (S16), and this processing is performed. Exit. The portable device 3 repeatedly executes this process at a predetermined cycle.

Return to FIG. The response signal A1 from the portable device 3 is received by the receiving unit 25. Thereby, the receiving unit 25 functions as a collation information receiving unit and a position information receiving unit. And these collation information receiving part and position information receiving part are the above-mentioned collation information request part and position information request part, and the collation information acquisition part which acquires the collation information of the portable machine 3 by radio communications with portable machine 3 And functions as a unit that acquires the position information of the portable device 3 by wireless communication with the portable device 3.

When the response signal A1 is received (S3: YES), the ECU 20 executes a verification process for verifying the ID code, which is the verification information of the portable device 3 included in the response signal A1, and the master code stored in the memory 22 itself. Then, it is determined whether or not the portable device 3 is the portable device 3 corresponding to the vehicle 100 (S4). Thereby, ECU20 functions as a collation part. At this time, the ECU 20 acquires each measured value of RSSI included in the received response signal, and refers to the data table of FIG. 5 based on the acquired RSSI to identify the current position of the portable device 3 (S4). . Thereby, ECU20 functions as a position specific part.

If the verification is not performed in the verification process (S4), that is, if the verification is not normally performed (S5: NG), the ECU 20 ends the process. Also, when the response signal A1 is not received within the predetermined time (S3: NO), the ECU 20 ends this process. On the other hand, when verification is performed, that is, when verification is normally performed (S5: OK), the ECU 20 determines whether or not the current position of the specified portable device 3 is within a predetermined unlocking permission region R3. Is determined (S6). Thereby, the ECU 20 functions as an area determination unit.

Note that the unlocking permission area R3 is stored in the memory 22 in advance. If the current position of the portable device 3 is specified in the unlocking permission area R3 as shown in FIG. 7 (S6: YES), the ECU 20 switches the unlocking prohibition state for the door unit 5 to the unlocking permission state ( S7) This process is terminated. If the current position of the portable device 3 is specified outside the unlocking permission area R3 (S6: NO), the ECU 20 ends the present process while leaving the door unit 5 in the unlocking prohibited state. By these processes, the ECU 20 functions as an unlocking control unit. This process is repeatedly executed at a predetermined cycle.

That is, when the current position of the portable device 3 is specified in the unlocking permission area R3 as shown in FIG. 7 and the door unit 5 is in the unlocking permission state, a predetermined unlocking operation is performed as shown in FIG. Thus, the ECU 20 causes the lock mechanism 50 to unlock the door 10, and the door 10 is unlocked.

However, as shown in FIG. 9, when the current position of the portable device 3 is specified outside the unlocking permission area R3 and the door unit 5 is in the unlocking prohibited state, a predetermined unlocking operation for unlocking the door 10 is performed. Even if the control is performed, the ECU 20 does not cause the lock mechanism 50 to unlock the door 10, so that the door 10 remains in the locked state. Thus, in this embodiment, when the unlocking operation is performed, if the portable device 3 is not within the predetermined area, the unlocking is not performed, and thus the security level is higher than the conventional level.

The unlocking permission state described above is a state where the door 10 is unlocked when a predetermined unlocking operation is performed on the door 10 in the locked state. On the other hand, the unlocking prohibited state is a state where the unlocked door 10 is not unlocked even when the unlocking operation is performed. The unlocking operation of the present embodiment is an operation of touching the touch sensor 51 provided on the door handle 11 as already described.

Further, the unlocking permission area R3 described above is an area defined as a partial area in the position specifying area R2. The unlocking permission area R3 of this embodiment is set as an area on the right side of the door handle 11 when facing the door handle 11 of the door 10. The area on the right side of the door handle when facing the door handle 11 is an area where it is difficult for a right-handed user to operate the door handle 11. For this reason, a right-handed user cannot unlock the door 10 unless he / she intentionally moves to the area on the right side of the door handle and performs an unlocking operation. In other words, since the user cannot unlock the door 10 unless intentionally taking an action that is not normally performed, the security level is increased as compared with the prior art.

The unlocking permission region R3 may be set as a region on the left side of the door handle 11 when facing the door handle 11 of the door 10. Further, the unlocking permission area R3 may be set on the right side or the left side of the door handle 11 in a form not including the front area R6 of the door handle 11 as shown in FIGS. 11 and 12, for example. Here, the front region R6 is a region having the same width as the door handle 11 extending in the front direction 11P of the door handle 11 in the position specifying region R2.

Incidentally, in this embodiment, the user can set the unlocking permission area R3. Hereinafter, the locking process of the door 10 including the process of setting the unlocking permission area R3 will be described with reference to FIG.

First, when a predetermined locking operation for locking the door 10 is performed (S21: YES), the ECU 20 sends a verification information request signal Q1 and a position information request to each transmitter 23 in the same manner as S2 in FIG. Signals Sa, Sb, Sc, and Sr are transmitted (S22). Thereby, ECU20 functions as a collation information request part and a position information request part.

On the other hand, when the portable device 3 has already executed the communication process shown in FIG. 6 and has received the request signals Q1, Sa, Sb, Sc, and Sr shown in FIG. A response signal A1 including verification information and position information requested by each signal is transmitted.

When the receiving unit 25 receives the response signal A1 from the portable device 3 (S23: YES), the ECU 20 stores the ID code that is the collation information of the portable device 3 included in the response signal A1 and the memory 20 itself. Collation processing for collating with the master code is executed (S24). Thereby, ECU20 functions as a collation part. At this time, the ECU 20 acquires each measured value of RSSI included in the received response signal, and refers to the data table of FIG. 5 based on the acquired RSSI to identify the current position of the portable device 3 (S24). . Thereby, ECU20 functions as a position information acquisition part and a position information specific part. These processes are the same as S4 of FIG.

When the collation is not normally performed in the collation process (S24) here (S25: NG), the ECU 20 ends this process. Also, when the response signal A1 is not received within the predetermined time (S23: NO), the ECU 20 ends this process. On the other hand, when the collation is normally performed (S25: OK), the ECU 20 can set an unlocking permission region R3 in which the current position of the specified portable device 3 is set in advance (hereinafter, settable). It is determined whether it is within the area (S26). The settable region R4 is stored in the memory 22 in advance.

If the current position of the portable device 3 is specified in the settable area R4 as shown in FIGS. 11 and 12 (S26: YES), the ECU 20 newly sets the settable area R4 as the unlocking permission area R3. Set (S27). That is, the unlocking permission area R3 stored in the memory 22 is updated to a new unlocking permission area R3. Thereby, ECU20 functions as a field setting part of unlocking permission field R3. Then, the ECU 20 sets the door 10 in the unlocked state to the locked state (S27), and ends this process.

If the current position of the portable device 3 is specified outside the settable area R4 (S26: NO), the unlocking permission area R3 is not updated and the unlocked door 10 remains in the unlocked state. The process ends. This process is repeatedly executed at a predetermined cycle.

That is, a plurality of settable areas R4 are prepared in advance as candidates that can be set as the unlocking permission area R3, and the portable device 3 exists when a predetermined locking operation is performed in the settable area R4. The area is set as a new unlocking permission area R3. For this reason, since it is not known in which area the unlocking permission area R3 is set for other users, unlocking becomes difficult and the security level increases.

The settable area R4 is an area defined as a partial area in the position specifying area R2. As shown in FIGS. 11 and 12, the settable region R4 of this embodiment has a region on the right side of the door handle 11 and a region on the left side of the door handle 11 when facing the door handle 11 of the door 10. It is set as an area. The area on the right side of the door handle when facing the door handle 11 is an area where it is difficult for a right-handed user to operate the door handle 11. For this reason, a right-handed user cannot unlock the door 10 unless he / she intentionally moves to the area on the right side of the door handle and performs an unlocking operation. That is, since the user cannot unlock the door 10 unless intentionally taking an action that is not normally performed, the security level is increased as compared with the conventional case.

7 to 9 and 11 to 13 exemplify the unlocking process of FIG. 4 and the locking process of FIG. 10 for the door 10 on the right front side of the vehicle 100. In the same manner, the unlocking process and the locking process are performed.

Hereinafter, modified examples will be described. However, the same portions as those in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted. It should be noted that the above-described embodiment and the following modification examples can be appropriately combined in an area where no technical contradiction occurs.

In the above-described embodiment, when collation is normally performed (S25 in FIG. 10: OK), in which region R4 of the plurality of settable regions R4 the specified portable device 3 is located by the ECU 20 (S26), the settable area R4 in which the portable device 3 exists is set as a new unlocking permission region R3 (S27). As shown in FIG. 13, the current state of the identified portable device 3 is set. It may be determined which region R4 of the plurality of settable regions R4 is closest to the position, and the closest settable region R4 may be set as a new unlocking permitted region R3.

In the above embodiment, as shown in FIG. 2, the first communicable region R23 capable of receiving the verification information request signal and the second communicable capable of receiving the position information request signal are provided around the vehicle 100. Region R23 is defined as a common area. However, for example, by sending a collation information request signal using radio waves in the LF (long wave) band and transmitting a position information request signal using radio waves in the VLF band, the collation information request signal is received as shown in FIG. The possible first communicable region R23 and the second communicable region R24 (here, the region in the position identifiable region R2) that can receive the position information request signal may be defined as different areas. . In this case, the unlocking permission area R3 needs to be set to an area where both the first communicable area R23 and the second communicable area R24 overlap.

Further, in the above embodiment, after transmitting the collation information request signal from each transmitter 23 at the same time, the position information request signal is transmitted from each transmitter 23 in a time-shifted manner, but as shown in FIG. A signal including both the verification information request signal and the position information request signal may be transmitted from each transmission unit 23 in a time-shifted manner. The transmission of the verification information request signal and the transmission of the location information request signal are limited to FIGS. 3 and 15 as long as the position of the portable device 3 can be specified in the vehicle peripheral region and the verification information of the portable device 3 can be acquired. It is not a thing.

Moreover, in the said Example, ECU20 of the vehicle-mounted apparatus 2 acquires RSSI which the portable device 3 measures by radio | wireless communication, and ECU20 pinpoints the present position of the portable device 3, but it is a portable device by another method. 3 may be specified.

For example, the ECU 20 of the in-vehicle device 2 wirelessly transmits a request signal to the transmission unit so as to wirelessly transmit an RSSI measurement signal to the response signal from the portable device 3, and the response signal is provided at a different location of the vehicle 100. Radio reception is performed by the above receiving unit, RSSI of each received measurement signal is measured by the measuring unit (not shown) of the in-vehicle device 2, and the current position of the portable device 3 is specified based on the measurement result May be.

In addition, the portable device 3 is provided with a GPS receiver (not shown), and the ECU 20 of the in-vehicle device 2 acquires a GPS signal received by the portable device 3 by the GPS receiver by wireless communication, and a position included in the acquired GPS signal. The current position of the portable device 3 may be specified based on information (that is, current position coordinates).

In the above-described embodiment, the ECU 20 can specify the first condition under which the portable device 3 is verified by the verification process and the current position of the portable device 3 specified by the position information by the position specifying unit. The door 10 in the locked state is unlocked when both the second condition of being in the unlocking permission region R3 determined as a partial region in the region R2 is satisfied, Alternatively, the unlocking prohibited state in which the unlocking of the door 10 of the vehicle 100 is prohibited in the locked state is set as an unlocking permitted state in which unlocking is possible by a predetermined unlocking operation.

However, along with these first and second conditions, the passage route to the unlocking permission area R3 can be specified based on the position of the portable device 3 specified by the position specifying unit so far. When satisfying the third condition that the unlocking passage route defined as a partial region in the region R2 is not deviated, the door 10 in the locked state is brought into the unlocked state, or in the locked state The unlocking prohibited state in which the unlocking of the door 10 of the vehicle 100 is prohibited may be set to an unlocking permitted state in which unlocking is possible by a predetermined unlocking operation.

More specifically, the unlocking process of the door 10 shown in FIG. 4 may be executed as the process of FIG. Hereinafter, the unlocking process of the door 10 shown in FIG. 16 will be described.

First, when a predetermined transmission timing comes (S111: YES), the ECU 20 transmits a collation information request signal Q1 and position information request signals Sa, Sb, Sc, Sr (S112). On the other hand, the portable device 3 is executing the communication process shown in FIG. 6, and upon receiving these request signals Q1, Sa, Sb, Sc, Sr, it transmits a response signal A1 including the requested information. When the ECU 20 receives the response signal A1 from the portable device 3 (S113: YES), the ECU 20 executes a verification process for the ID code included in the response signal A1 (S114). Moreover, ECU20 acquires each measured value of RSSI contained in the received response signal, and pinpoints the present position of the portable device 3 (S114). The processes of S111 to S114 are the same as the processes of S1 to S4 in FIG. When collation is not normally performed in this collation process (S114) (S115: NG), or when the response signal A1 is not received within a predetermined time (S113: NO), the ECU 20 is in a locked state. 10 is left in the unlocking prohibited state (S119), and this process is terminated.

On the other hand, when the collation is normally performed (S115: OK), the ECU 20 determines whether or not the current position of the identified portable device 3 is out of the predetermined unlocking passage route R5 ( S116). Note that the unlocking passage route R5 is stored in the memory 22 in advance. When it is outside the unlocking passage route R5 (S116: YES), the ECU 20 leaves the door 10 in the locked state in the unlocking prohibited state (S119), and ends this process.

On the other hand, if not deviating from the unlocking passage route R5 (S116: NO), the ECU 20 determines whether or not the current position of the specified portable device 3 is within a predetermined unlocking permission region R3. (S117). If the current position of the portable device 3 is specified in the unlocking permission area R3 as shown in FIG. 7 (S117: YES), the ECU 20 unlocks the door 10 in the unlocking state from the unlocking prohibition state to the unlocking permission state. (S118), this process is terminated, and if the current position of the portable device 3 is not specified outside the unlocking permission area R3 (S117: NO), the process returns to S112. Thus, the ECU 20 functions as an unlocking control unit. This process is repeatedly executed at a predetermined cycle.

That is, as shown in FIG. 17, a predetermined unlocking operation is performed only when the portable device 3 reaches the unlocking permission region R3 through the unlocking passage route R5 and enters the unlocking permission state. Thus, the ECU 20 can cause the lock mechanism 50 to unlock the door 10 and bring the door 10 into an unlocked state.

However, as shown in FIG. 18, when the portable device 3 reaches the outside of the unlocking permission region R3 through a route that leaves the unlocking passage route R5, a predetermined unlocking operation for unlocking the door 10 is performed. Even if the control is performed, the ECU 20 does not cause the lock mechanism 50 to unlock the door 10, so that the door 10 remains in the locked state.

As described above, in this embodiment, when the unlocking operation is performed, the mobile device 3 is not unlocked unless it reaches the predetermined area without deviating from the predetermined route. Therefore, the security level is increased as compared with the prior art.

Note that the unlocking passage route R5 is a region defined as a partial region in the position specifying region R2. As shown in FIG. 17, the unlocking passage route R 5 of the present embodiment is set as a route only in a region on the right side of the door handle 11 when facing the door handle 11 of the door 10.

On the other hand, as shown in FIG. 19, the unlocking passage route R 5 may be set as a route only in the region on the left side of the door handle 11 when facing the door handle 11 of the door 10. Good. In this way, when unlocking the door 10, the user must intentionally take an action that is not normally performed by adding to the unlocking condition that the door handle is approached by a route that does not pass through the front surface of the door handle 11. Since the door 10 cannot be unlocked, the security level can be increased as compared with the prior art.

On the contrary, as shown in FIG. 20, when unlocking the door 10, it may be added to the unlocking condition that the door 10 approaches the door handle through the unlocking passage route R 5 across the front of the door handle 11. Good. Also in this case, since the door 10 cannot be unlocked unless the user intentionally takes a path passing through the front surface of the door handle 11, the security level can be increased as compared with the prior art.

Further, the unlocking passage route R5 may be determined not as a straight route but as a route that bends along the way. For example, as shown in FIG. 21, the unlocking passage route R 5 approaches the door handle 11 in a direction orthogonal to the front direction 11 P of the door handle 11, and then along the front direction 11 P of the door handle 11. A path approaching the door handle 11 may be used.

Further, the unlocking passage route R5 may be defined as a route approaching both the two different doors 10. For example, as shown in FIG. 22, the unlocking passage route R 5 for unlocking the vehicle left front door 10 approaches the first door (here, the vehicle right front door) 10 and the front side of the vehicle 100. The second door 10 (here, the left front door of the vehicle) that is different from the first door 10 is passed through and reaches the unlocking permission area R3 of the second door 10. In the case of FIG. 22, a route similar to FIG. 21 is adopted as a route approaching the vehicle right front door 10.

Furthermore, as a condition for setting the door 10 of the vehicle 100 to the unlocking permitted state, the first condition that the portable device 3 is verified by the verification process and the current position of the portable device 3 are within the unlocking permitted region R3. And the third condition that the passage route up to the unlocking permission region R3 does not deviate from the unlocking passage route R5, but also within the unlocking passage route R5. The fourth condition may be that a predetermined user operation that can be performed in the above is executed. Note that the user operation under the fourth condition is defined as an operation different from the user operation that triggers the execution of the unlocking control (in the above embodiment, the touch operation on the touch sensor 51 of one door 10).

For example, as shown in FIGS. 23 and 24, a fourth unlocking operation (here, an operation of touching the touch sensor 51) is performed on all doors 10 that are close to the unlocking passage route R5. It can be a condition.

In the case of FIG. 23, the first door (here, the vehicle right front door) 10 approaches, and the second door (here, the vehicle left front door) 10 approaches through the front side of the vehicle. The fourth condition is that the unlocking operation is performed on the door 10.

In the case of FIG. 24, in order to approach the first door 10, the second door 10, and the third door 10 on the rear side of the vehicle, an unlocking operation is performed on the three doors 10. This is the fourth condition.

23 and 24, the door 10 of the vehicle 100 is unlocked as the predetermined unlocking operation is performed on the second door 10, and therefore the unlocking operation to the second door is not performed. Finally, the operation order is determined such that the unlocking operation to the remaining door 10 is performed earlier.

Further, the unlocking passage route R5 may be set by the user. Hereinafter, the locking process of the door 10 including the setting process of the unlocking passage route R5 will be described with reference to FIG.

The processing of S121 to S127 is the same as the processing of S21 to S27 in FIG.

When the door 10 is locked in S127, the ECU 10 starts identifying the current position of the portable device 3 again. That is, the ECU 10 transmits the verification information request signal Q1 and the position information request signals Sa, Sb, Sc, Sr (S128), and transmits a response signal A1 including the requested verification information and position information to the portable device 3. Let When the ECU 20 receives the response signal A1 (S129: YES), the ECU 20 executes a collation process for collating collation information included in the response signal A1 (S130). Moreover, ECU20 acquires each measured value of RSSI contained in received response signal A1, and pinpoints the present position of the portable device 3 (S130). The processes in S128 to S130 are the same as the processes in S22 to S24 in FIG.

If the collation is normally performed in this collation process (S130) (S131: OK), the ECU 20 stores the identified current position of the portable device 3 in the memory 22 as the passage position (S132), and returns to S128. Thereby, ECU20 functions as a passage position storage part. If the collation is not normally performed (S131: NG), the ECU 20 returns to S128 without storing the current position in the memory 22.

Thus, after the unlocking permission area R3 is newly set in S127 and the door 10 is in the locked state, the ECU 20 determines the passing position of the portable device 3 by repeating S128 to S132 in a predetermined cycle. Store / accumulate in the memory 22. When the ECU 20 does not receive the response signal A1 within the predetermined time (S129: NO), the ECU 20 performs a new unlocking pass based on the passing position of the portable device 3 that has been accumulated in the memory 22 so far. A route R5 is set (S133). That is, the unlocking passage route R5 stored so far in the memory 22 is updated to a new unlocking passage route R5 based on the latest passage position. Thereby, ECU20 functions as a setting part of passage route R5 for unlocking. Then, the ECU 20 ends this process.

Specifically, after the unlocking permission area R3 is newly set and the door 10 is in the locked state (S127), the user leaves the unlocking permission area R3 as shown in FIG. The vehicle leaves the identifiable region R2. At the time of leaving, the ECU 20 repeats the processes of S128 to S132 to store and store in the memory 22 the passing position of the portable device 3 at the time of leaving. Thereby, the ECU 20 determines the passage position of the portable device 3 from the unlocking permission region R3 set in S127 to the outside of the position identifiable region R2 where the response signal A1 cannot be received. Memorize in cycles.

Then, as shown in FIG. 27, the ECU 20 sets the unlocking passage route R5 so as to give a predetermined width d5 to the passage flow line r5 connecting the accumulated passage positions.

That is, the unlocking passage route R5 is the route itself from which the user leaves the vehicle 100 after the locking operation. For this reason, since it is difficult for other users to know in which region the unlocking passage route R5 is set, unlocking becomes difficult and the security level increases.

In the processing of FIG. 4 and FIG. 16, the unlocking control (S7, S118) for changing the unlocking prohibited state to the unlocking permitted state is executed by satisfying a predetermined condition. 28, instead of S118), as shown in FIG. 28, the unlocking control (S218) may be performed in which the locked door 10 is unlocked by the lock mechanism 50 so as to be unlocked.

Alternatively, as shown in FIG. 29, after the locked door 10 is unlocked by the lock mechanism, the door 10 is opened by the door opening / closing drive unit 53 to be opened (door open in the figure). (S318) may also be used. By executing these controls, the ECU 20 functions as an unlocking control unit for the door 10.

In addition to the unlocking control (S7, S118, S218, S318) of FIGS. 4, 16, 28, and 29, the ECU 70 of the engine control unit 7 starts the engine from the engine start prohibited state to the start permitted state. (S218) may be executed, or start control (S318) for starting the engine may be executed. By executing these controls, the ECU 20 functions as an engine start control unit.

It should be noted that the start prohibition state is a state in which engine start is not executed even when a predetermined engine start operation (in this case, operation of switch 71) is received in an engine stop state of vehicle 100. The start permission state is a state in which the engine is started when a predetermined engine start operation is received while the vehicle 100 is in the engine stop state.

In S7 of FIG. 4 and S118 of FIG. 16, a control for allowing the door to be unlocked is executed, and in S218 of FIG. 28, the control for allowing the door to be unlocked and the control for allowing the engine to be started are performed. Both are executed, and in S318 in FIG. 29, both the control for opening the closed door and the control for starting the engine in the engine stopped state are executed. These steps (S7, S118) are executed. , S218, S318), any one or more of these five controls (unlocking permission, unlocking, door opening, engine start permission, engine start) may be changed.

The unlocking permission region R3 and the unlocking passage route R5 are preliminarily shown on the screen display unit 29 (for example, the display 29 of the car navigation device 290 connected to the in-vehicle device 2) provided in the passenger compartment, as shown in FIG. A plurality of predetermined unlocking permission area candidates and unlocking passage route candidates are displayed on the screen, and a user to a predetermined operation unit 28 (for example, a touch panel provided on the display 29 of the car navigation device 29) is displayed. The selection may be made by an operation, and the selected candidate region and candidate route may be set in the unlocking permission region R3 and the unlocking passage route R5.

In FIG. 30, the touch area 29I indicating the type (types A to D) of a plurality of predetermined unlocking permission area candidates and unlocking passage path candidates is selected by touching and selected. By touching the region 29D, the ECU 20 sets the unlocking permission region candidate and the unlocking passage route candidate of the selected touch region as the new unlocking permission region R3 and the unlocking passage route R5.

Although the present disclosure has been described based on the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims

An in-vehicle device (2) mounted on the vehicle (100);
A portable device (3) for storing unique verification information,
The in-vehicle device is
A collation information acquisition unit (20) for acquiring the collation information of the portable device by wireless communication with the portable device;
A collation unit (20) that collates the acquired collation information and determines whether the portable device corresponds to the vehicle;
A position information acquisition unit (20) for acquiring position information of the portable device by wireless communication with the portable device;
A position specifying unit (20) for specifying the current position of the portable device based on the acquired position information;
The current position of the portable device that has been verified by the verification unit and specified by the location specifying unit is determined as a partial region within the region (R2) that can be specified by the location specifying unit. The vehicle door (10) in the locked state is unlocked, or the door of the vehicle in the unlocked state and unlocked state is predetermined when the vehicle is in the unlocking permission area (R3). An unlocking control unit (20) for performing unlocking control for unlocking and unlocking the door of the vehicle in the unlocked state, which can be unlocked by the unlocking operation of
A vehicle control system comprising:
2. The vehicle control system according to claim 1, wherein the unlocking permission region is set to a region on the right side or the left side of the door handle when facing the door handle (11) of the vehicle.
The in-vehicle device is
When a predetermined locking operation is performed, the position specifying unit specifies the current position of the portable device, and an area including the current position or an area closest to the current position among a plurality of predetermined areas The control system for vehicles according to claim 1 or 2 provided with the setting part (20) of an unlocking permission field which sets as a new said unlocking permission field (R3).
The unlocking control unit is such that the portable device is verified by the verification unit, and the current position of the portable device specified by the position specifying unit is within the unlocking permitted region, and the unlocking permitted region thereof The unlocking passage route (R5) defined as a partial region in the position-identifiable region based on the position of the portable device that has been identified by the position identification unit so far. The vehicle control system according to any one of claims 1 to 3, wherein the unlocking control is executed when it is determined that the unlocking is not performed.
5. The vehicle control according to claim 4, wherein the unlocking passage route is set as a route only in a region on the right side or on the left side of the door handle when facing the door handle of the door. system.
The vehicle control system according to claim 4, wherein the unlocking passage route is set as a route crossing a front surface of the door handle of the door (10).
The vehicle control system according to claim 4, wherein the unlocking passage route is set as a route that bends along the way.
The vehicle further includes another door different from the door,
5. The vehicle control system according to claim 4, wherein the unlocking passage route is defined as a route approaching both the door and the other door.
The unlocking control unit is such that the portable device is verified by the verification unit, and the current position of the portable device specified by the position specifying unit is within the unlocking permitted region, and the unlocking permitted region thereof It is determined in advance that the passage route up to is not deviated from the unlocking passage route, and can be performed in the unlocking passage route in addition to a user operation that triggers execution of the unlocking control. The vehicle control system according to any one of claims 4 to 8, wherein the unlocking control is executed when a given user operation is executed.
The in-vehicle device is
After a predetermined locking operation, the current position of the portable device specified by the position specifying unit is stored as a passing position for a predetermined period until the portable device leaves the position-identifiable region (R2). An accumulated passage position storage unit (20);
Based on the accumulated passing position, an area along the passing path that the portable device has passed during the predetermined period is set as a new unlocking passing path (R5). A setting unit (20);
A vehicle control system according to claim 4.
The in-vehicle device is
When the condition for executing the unlocking control is satisfied, the start control for setting the engine of the vehicle in the engine stopped state to a start permission state that can be started by a predetermined start operation, or for starting the engine The vehicle control system according to any one of claims 1 to 10, further comprising a start control unit (20) to be executed.
The vehicle control system according to claim 7, wherein the route that turns in the middle is a route that is not a straight line.
The vehicle control system according to claim 8, wherein the path approaching both the door and the other door is a path approaching the door after approaching the other door.