WO2021090773A1

WO2021090773A1 - Vehicle system

Info

Publication number: WO2021090773A1
Application number: PCT/JP2020/040850
Authority: WO
Inventors: 健志加藤
Original assignee: 株式会社デンソー
Priority date: 2019-11-06
Filing date: 2020-10-30
Publication date: 2021-05-14
Also published as: JP2021075859A

Abstract

A vehicle system (500) comprises: an onboard device (200) that is mounted in a vehicle (10); a portable device (100) that functions as an electronic key for the vehicle and that can wirelessly communicate with the onboard device; an authentication unit (121, 222); a designated area inside/outside determination unit (221) that determines whether the portable device is present in a designated area (Ar1, Ar2); a movement control unit (420) that causes the vehicle to execute a prescribed movement if authentication is successful and it is determined that the portable device is in the designated area; and a building inside/outside determination unit (910, 122) that determines whether the portable device is present within a building. The authentication unit executes an authentication process if the portable device is determined to not be present within the building and does not execute the authentication process if the portable device is determined to be in the building.

Description

Vehicle system

Cross-reference of related applications

This application is based on Japanese application number 2019-201362 filed on November 6, 2019, and the contents of the description are incorporated herein by reference.

This disclosure relates to the vehicle system.

In recent years, a dedicated device for vehicle electronic keys called a key fob and a portable device such as a smartphone have been used as vehicle electronic keys, and the in-vehicle device and the portable device mounted on the vehicle authenticate each other by wireless communication, and the authentication is successful. In this case, a vehicle system for unlocking the door of the vehicle, starting the vehicle, and the like has been put into practical use. For example, in the vehicle system of Patent Document 1, a mobile phone or smartphone, which is a portable device, and an electronic control unit, which is an in-vehicle device mounted on the vehicle, perform BLE (Bluetooth Low Energy) communication, and the BLE communication is used. The distance between each other is estimated. Then, when the estimated distance is equal to or less than a predetermined distance and the authentication using the identifier exchanged by the BLE communication is successful, the vehicle door is unlocked or the vehicle is started.

Special Table 2019-502096

In a configuration in which wireless communication is performed between a portable device and an in-vehicle device as in Patent Document 1, even in a situation where the portable device exists in the building and does not exist in the vicinity of the vehicle, and a normal user does not get on the vehicle. By relaying such wireless communication, there is a possibility that a malicious person may perform a so-called relay attack in which the door of the vehicle is unlocked or the vehicle is started. For this reason, there is a demand for a technique capable of causing a vehicle to perform a predetermined operation such as unlocking a door only when the portable device is present in the vicinity of the vehicle.

This disclosure can be realized in the following forms.

A vehicle system is provided as a form of the present disclosure. This vehicle system is an authentication process for authenticating an in-vehicle device mounted on the vehicle, a portable device capable of performing wireless communication with the in-vehicle device and functioning as an electronic key of the vehicle, and the portable device and the in-vehicle device. The authentication unit that executes the above, the predetermined area inside / outside determination unit that determines whether or not the portable device is within a predetermined area within a predetermined distance from the in-vehicle device, and the execution result of the authentication process are successful authentication. And, when it is determined that the portable device exists in the predetermined area, an operation control unit that causes the vehicle to execute a predetermined operation and whether or not the portable device exists in the building. It is provided with a building inside / outside determination unit for determining. The authentication unit executes the authentication process when it is determined that the portable device does not exist in the building, and does not execute the authentication process when it is determined that the portable device exists in the building.

According to the vehicle system of the above-described form, the vehicle internal / external determination unit for determining whether or not the portable device exists in the building is provided, and the authentication unit performs authentication processing when it is determined that the portable device does not exist in the building. Is executed, and the authentication process is not executed when it is determined that the portable device exists in the building. Therefore, it is possible to suppress the execution of the authentication process when the portable device exists in the building. Can be prevented from performing a predetermined operation. On the other hand, if it is determined that the portable device does not exist in the building, the authentication process is executed, and if it is determined that the authentication is successful and the portable device exists in the predetermined area, a predetermined operation of the vehicle is performed. Can be done. Therefore, even if it is possible to erroneously determine that the portable device exists in a predetermined area, the vehicle can be prevented from performing a predetermined operation as long as the portable device exists in the building. As described above, according to the vehicle system of the above-described embodiment, the vehicle can be made to perform a predetermined operation only when the portable device is present in the vicinity of the vehicle.

This disclosure can also be realized in various forms other than the vehicle system. For example, a vehicle equipped with a vehicle system, an in-vehicle device, a portable device, a vehicle control method, a vehicle door lock control method, a computer program for realizing these systems, devices, and methods, a storage medium storing the computer program, and the like. It can be realized in the form of.

The above objectives and other objectives, features and advantages of the present disclosure will be clarified by the following detailed description with reference to the accompanying drawings. The drawing is
FIG. 1 is a block diagram showing a configuration of a vehicle system as an embodiment of the present disclosure. FIG. 2 is a plan view schematically showing the approach area and the entry area. FIG. 3 is a flowchart showing the procedure of vehicle control processing in the smartphone. FIG. 4 is a flowchart showing the procedure of vehicle control processing in the smartphone. FIG. 5 is an explanatory diagram schematically showing an arrangement example of a vehicle, a smartphone, a key fob, and an access point device. FIG. 6 is a flowchart showing the procedure of vehicle control processing in the smartphone. FIG. 7 is a flowchart showing the procedure of vehicle control processing in the BT control master ECU. FIG. 8 is a flowchart showing the procedure of vehicle control processing in the BT control master ECU. FIG. 9 is a flowchart showing the procedure of vehicle control processing in the BT control master ECU. FIG. 10 is a flowchart showing the procedure of vehicle control processing in the telematics ECU. FIG. 11 is a flowchart showing the procedure of vehicle control processing in the center. FIG. 12 is a flowchart showing the procedure of vehicle control processing in the body ECU.

A. Embodiment:
A-1. System configuration:
In the vehicle system 500 shown in FIG. 1, the smartphone 100 or the key fob 150 and the Bluetooth control master ECU (Electronic Control Unit) 200 (hereinafter referred to as “BT control master ECU 200”) mounted on the vehicle 10 are referred to as Bluetooth (hereinafter referred to as “BT control master ECU 200”). Registered trademark) The smartphone 100 or key fob 150 is within a predetermined distance or less from the vehicle 10 on condition that the authentication information is exchanged with each other by performing wireless communication (hereinafter referred to as "BT communication") and the authentication is successful. The vehicle 10 is made to perform a predetermined operation when it exists in the device or when the user performs a predetermined operation such as operating a predetermined switch. The predetermined operation corresponds to, for example, locking or unlocking the door of the vehicle 10, starting the vehicle 10, turning on the light of the vehicle 10 (welcome light), or the like. In other words, the vehicle system 500 corresponds to a so-called PEPS (Passive Entry / Passive Start) system.

The smartphone 100 is a portable device that executes mobile communication, connects to the Internet, and makes a call. Further, in the present embodiment, the smartphone 100 also functions as an electronic key for a vehicle. The smartphone 100 includes a Bluetooth IC (Integrated Circuit, hereinafter also referred to as “BT_IC”) 110, an antenna 111, a WiFi function unit 112, a CPU 120, a GPS function unit 130, and a mobile communication unit 140.

BT_IC110 has a coding unit, a decoding unit, an amplification unit, etc., and controls Bluetooth communication. The antenna 111 transmits and receives radio signals. The BT_IC110 periodically outputs a wireless signal (advertising), receives a wireless signal from a BT communication device existing in the vicinity, and executes a process of obtaining the received signal strength (RSSI) of the received wireless signal. To do. The CPU 120 functions as an authentication unit 121, a building inside / outside determination unit 122, a communication availability control unit 123, a position identification unit 124, and a main control unit 125 by executing a control program stored in advance in a ROM (not shown).

The authentication unit 121 authenticates whether or not the vehicle 10 is a pre-registered vehicle. Specifically, it is determined whether or not the identifier received from the vehicle 10 via Bluetooth communication (hereinafter referred to as "BT communication") matches the identifier registered in advance. The building inside / outside determination unit 122 determines whether or not the smartphone 100 exists in the building based on the information received from the center 900. The details of such determination will be described later. The communication possibility control unit 123 instructs the key fob 150 whether or not BT communication is possible, that is, whether or not BT communication is permitted or prohibited. Details of such instructions will be described later. The position specifying unit 124 identifies the GPS position information by acquiring the position information (GPS position information) of the smartphone 100 specified by the GPS function unit 130. The main control unit 125 performs overall control of the vehicle control process described later, which is executed by the smartphone 100.

The WiFi function unit 112 executes wireless LAN (Local Area Network) communication according to the WiFi standard. For example, the WiFi function unit 112 connects to another wireless LAN communication device or the Internet via a wireless LAN access point device installed at the user's home. The WiFi function unit 112 and the wireless LAN access point device are preset with an ESSID (Extended Service Set Editor), which is a common identifier.

The GPS function unit 130 receives a GPS (Global Positioning System) satellite signal and identifies the current position of the smartphone 100 based on the signal. The GPS function unit 130 is not limited to GPS, and may be a function unit that identifies the current position of the smartphone 100 using any other satellite positioning system (GNSS) such as Galileo or QZSS.

The mobile communication unit 140 exchanges data with the mobile communication unit 920 of the center 900, which will be described later, by a predetermined mobile communication. In the present embodiment, the predetermined mobile communication is 4G (4th Ggeneration) communication. Instead of 4G communication, any kind of mobile communication provided by a telecommunications carrier, such as LTE (Long Time Evolution) communication or 5G (5th Generation) communication, may be used. In the present embodiment, the mobile communication executed by the telematics ECU 410 described later included in the smartphone 100, the center 900, and the vehicle 10 is also simply referred to as "mobile communication".

The key fob 150 is a dedicated device for electronic keys for vehicles. As a usage scene of the key fob 150, for example, a smartphone 100 is usually used as an electronic key for a vehicle, and is urgently used in the event of a breakdown or loss of the smartphone 100. When assuming such a usage scene, it is assumed that the key fob 150 is usually stored in the home of the user of the vehicle 10, for example. The key fob 150 includes a BT_IC 151 and an antenna 152. BT_IC151 has the same function as the above-mentioned BT_IC110. The antenna 152 has the same function as the above-mentioned antenna 111.

In addition to the smartphone 100, the key fob 150, and the BT control master ECU 200 described above, the vehicle system 500 is arranged in a plurality of sensors 300 mounted on the vehicle 10, a telematics ECU 410, a body ECU 420, a navigation device 430, and a center 900. It is provided with a building inside / outside determination unit 910 and a mobile communication unit 920.

The BT control master ECU 200 includes a BT_IC211, an antenna 212, a microcomputer 220, and a CAN (Control Area Network) driver 230, and itself performs Blueauto communication and controls each sensor 300 in an integrated manner.

BT_IC211 has the same function as the above-mentioned BT_IC110. The antenna 212 has the same function as the above-mentioned antenna 111. The microcomputer 220 has a CPU, a ROM, and a RAM. By executing the control program stored in advance in the ROM, the CPU functions as a predetermined area inside / outside determination unit 221, an authentication unit 222, an encryption unit 223, and a main control unit 224.

The predetermined area inside / outside determination unit 221 determines whether or not the smartphone 100 or the key fob 150 exists in the approach area Ar1 shown in FIG. The approach area Ar1 is an area of a predetermined distance or less from the BT control master ECU 200. In FIG. 2, in addition to the approach area Ar1, the vehicle 10, the BT control master ECU 200, the sensor 300, and the entry area Ar2 are schematically shown. The predetermined distance defining the approach area Ar1 is 5 m (meter) in the present embodiment. The predetermined distance is not limited to 5 m, and may be any distance such that the approach area Ar1 is wider than the entry area Ar2. However, it is preferable that the distance is such that Bluetooth communication is possible, and is generally shorter than the distance between the user's home building of the smartphone 100 and the key fob 150 and the parking position of the vehicle 10.

The authentication unit 222 executes an authentication process that the smartphone 100 or the key fob 150 is a portable device registered in advance in the vehicle 10 based on the authentication information obtained from the vehicle 10 by BT communication. The encryption unit 223 encrypts the information transmitted in the BT communication and decrypts the received information. The CAN driver 230 communicates with other ECUs, specifically, the telematics ECU 410 and the body ECU 420, and the navigation device 430 via the CAN formed in the vehicle 10. The main control unit 224 performs overall control of the vehicle control process described later, which is executed in the BT control master ECU 200.

The plurality of sensors 300 shown in FIG. 1 have similar configurations to each other. In the BT communication executed by the BT_IC211 sensor 300, the sensor 300 receives (intercepts) a radio signal transmitted from another device to the BT_IC211 and obtains its RSSI (received signal strength). As shown in FIG. 2, the sensors 300 are distributed and arranged in the vehicle 10. For example, the sensor 300 is arranged at the front end and the rear end of the vehicle 10, the handle of each door, and the like. As shown in FIG. 1, each sensor 300 includes a BT_IC311 and an antenna 312. The BT_IC311 has substantially the same function as the BT_IC211 included in the BT control master ECU 200. However, the BT_IC311 is different from the BT_IC211 in that it has a function of obtaining the RSSI of the received signal and transmitting it to the BT_IC211 and that it does not transmit the radio signal via the antenna 312. The antenna 312 receives the radio signal of the BLE radio communication.

The telematics ECU 410 includes a mobile communication unit 411 that communicates with the center 900, transmits data received from the BT control master ECU 200 via the CAN to the center 900, and controls the data received from the center 900 via the CAN. It is transmitted to the master ECU 200. The mobile communication unit 411 performs mobile communication with the mobile communication unit 920 of the center 900.

The body ECU 420 includes a lock control unit 421, a start control unit 422, and a light control unit 423. The lock control unit 421 controls the locking and unlocking of the door of the vehicle 10. Specifically, the lock control unit 421 controls an actuator that locks and unlocks the door of the vehicle 10 according to the operation status of the door handle switch 431 electrically connected to the body ECU 420. Lock or unlock such doors. The start control unit 422 controls the start of the engine of the vehicle 10. Specifically, the start control unit 422 ignites, for example, an igniter to start the engine according to the operation status of the start / stop switch 432 electrically connected to the body ECU 420. The light control unit 423 controls the lighting state of the lights of the vehicle 10, such as headlights, hazard lights, and room lights. Specifically, the light control unit 423 controls the lighting state of each light according to the operation status of the light switch 433 electrically connected to the body ECU 420. Further, as will be described later, when the smartphone 100 or the key fob 150 enters the approach area from outside the approach area, the so-called welcome light such as blinking of the headlight is turned on. The body ECU 420 is connected to the CAN.

The navigation device 430 searches for and determines the traveling route of the vehicle 10, provides route guidance, and the like. The navigation device 430 has a GPS function unit 440, and identifies the current position of the vehicle 10 based on the GPS satellite signal received by the GPS function unit 440. Instead of the GPS function unit 130, the current position of the vehicle 10 may be specified by using another arbitrary satellite positioning system (GNSS). The navigation device 430 is connected to the CAN.

The center 900 executes mobile communication with the smartphone 100 and the vehicle 10, respectively. Further, the center 900 functions as a functional unit for realizing PEPS. The center 900 includes a building inside / outside determination unit 910 and a mobile communication unit 920.

The building inside / outside determination unit 910 determines whether or not the smartphone 100 exists in the building. In the present embodiment, the building inside / outside determination unit 910 is composed of a server device. The building inside / outside determination unit 910 contains map information stored in a storage unit in the server device or an external storage unit accessible from the server device, and location information (GPS) transmitted from the smartphone 100 by mobile communication. From the location information), it is determined whether or not the smartphone 100 exists in the building. The mobile communication unit 920 executes mobile communication. Therefore, the center 900 can exchange data with the smartphone 100 and the vehicle 10 (telematics ECU 410).

In the present embodiment, when a regular user of the vehicle 10 takes the smartphone 100 and enters the approach area Ar1 shown in FIG. 2, the light of the vehicle 10 blinks a predetermined number of times, and further enters the entry area Ar2 and enters the door. The door is unlocked by an unlocking operation, for example, touching a predetermined portion of the door handle. After that, the engine is started when the user enters the vehicle interior of the vehicle 10 and performs a predetermined operation. These PEPS operations are realized when the vehicle 10 and the smartphone 100 execute BT communication with each other to exchange identifiers, and authentication using such identifiers is successful. Then, in the vehicle system 500 of the present embodiment, even if an attempt is made to perform an illegal PEPS operation by relaying BT communication between the vehicle 10 and the smartphone 100 by executing the vehicle control process described later, PEPS You can prevent the operation from taking place.

The BT control master ECU 200 corresponds to the in-vehicle device in the present disclosure. Further, the smartphone 100 is the portable device and the first portable device in the present disclosure, the key fob 150 is the second portable device in the present disclosure, the authentication unit 121 and the authentication unit 222 are the authentication units in the present disclosure, and the body ECU 420 is the authentication unit in the present disclosure. In the operation control unit, the building inside / outside determination unit 910 and the building inside / outside determination unit 122 are in the building inside / outside determination unit in the present disclosure, the WiFi function unit 112 is in the wireless communication unit of the present disclosure, and the BT_IC311 is in the signal strength specifying unit in the present disclosure. The sensor 300 corresponds to the wireless signal sensor in the present disclosure, respectively.

A-2. Vehicle control processing:
In the smartphone 100, the BT control master ECU 200, the telematics ECU 410, the center 900, and the body ECU 420, the vehicle control process is executed when the power is turned on. Hereinafter, the processes executed in each device will be described.

A-2-1. Processing on smartphone 100:
As shown in FIG. 3, in the smartphone 100, the main control unit 125 determines whether or not the smartphone 100 has gone out of the BT communication area of the vehicle 10 (step S102). Specifically, when the received signal strength of the radio signal output from the BT control master ECU 200 required by the BT_IC 110 becomes smaller than a predetermined threshold value, the main control unit 125 causes the smartphone 100 to perform BT communication of the vehicle 10. Judge that you have gone out of the area. When it is determined that the smartphone 100 does not go out of the BT communication area of the vehicle 10 (step S102: NO), step S102 is executed again. That is, the process waits until it is determined that the smartphone 100 has gone out of the BT communication area of the vehicle 10.

When it is determined that the smartphone 100 has gone out of the BT communication area of the vehicle 10 (step S102: YES), the GPS function unit 130 periodically tries to receive the GPS signal in the smartphone 100 (step S104). The main control unit 125 determines whether or not a GPS signal has been received (step S106). When it is determined that the GPS signal has been received (step S106: YES), the position specifying unit 124 identifies the position of the smartphone 100 by acquiring the position information of the smartphone 100 specified by the GPS function unit 130 (step S106: YES). Step S112). In the present embodiment, a position specified based on a GPS signal is referred to as a "GPS position", and information indicating such a GPS position is referred to as "GPS position information".

In step S106 described above, when it is determined that the GPS signal is not received (step S106: NO), the main control unit 125 determines whether or not BT communication with another smartphone is possible (step S108). For example, when the BT_IC110 receives an advertisement transmitted from another smartphone, the main control unit 125 determines that BT communication with the other smartphone is possible. When it is determined that BT communication with another smartphone is possible (step S108: YES), the position identification unit 124 performs BT communication with the smartphone and acquires its own GPS position information specified by the smartphone. (Step S110). After the completion of step S110, the above-mentioned step S112 is executed. In this case, in step S112, the position specifying unit 124 identifies the GPS position information acquired from another smartphone as the GPS position information of the smartphone 100. As described above, as a situation in which steps S108 and S110 are executed, for example, the user is in a place where it is difficult to receive GPS signals such as underground or in a multi-storey car park, whereas, for example, the first floor of a building or the like. , A situation where a GPS signal can be received, such as a pedestrian bridge connecting a multi-storey car park and another building, and another smartphone is present at a position where BT communication is possible. In this case, the GPS position specified in the smartphone is estimated to be relatively close to the smartphone 100. Therefore, in the present embodiment, in such a situation, the GPS position information specified by the other smartphone is specified as the GPS position information of the smartphone 100.

In the smartphone 100, the main control unit 125 transmits the GPS position information of the smartphone 100 specified in step S112 to the center 900 via the mobile communication unit 140 (step S114). As will be described later, in the center 900, it is determined whether or not the smartphone 100 exists in the building based on the received GPS position information of the smartphone 100, and the result is transmitted to the smartphone 100.

In the smartphone 100, the building inside / outside determination unit 122 acquires information on whether or not the smartphone 100 exists in the building from the center 900 (step S116). As shown in FIG. 4, the building inside / outside determination unit 122 determines whether or not the smartphone 100 exists in the building based on the information received from the center 900 (step S118). When it is determined that the smartphone 100 exists in the building (step S118: YES), as shown in FIG. 3, the communication availability control unit 123 instructs the key fob 150 to prohibit BT communication with the BT control master ECU 200. (Hereinafter referred to as a “communication prohibition signal”) is transmitted (step S142). As will be described later, the key fob 150 that has received the communication prohibition signal controls the BT until it receives a signal (hereinafter, referred to as a “communication permission signal”) instructing the permission of BT communication with the BT control master ECU 200 from the smartphone 100. BT communication with the master ECU 200 is not executed. After the completion of step S142, the process returns to step S104 described above. Therefore, in this case, the smartphone 100 does not perform BT communication with the BT control master ECU 200. Further, the key fob 150 also does not perform BT communication with the BT control master ECU 200. Therefore, it is avoided that the PEPS operation is performed. As shown in FIG. 5, even if the smartphone 100 and the key fob 150 exist in the approach area Ar1 of the vehicle 10, since the smartphone 100 and the key fob 150 exist in the building 20, the user gets on the vehicle 10. It is clear that there is no intention. In the present embodiment, since the PEPS operation is avoided in such a situation, a malicious person can relay the BT communication between the vehicle 10 (BT control master ECU 200) and the smartphone 100 and the key fob 150. Even so, it is possible to avoid unlocking the vehicle 10 and starting the engine.

As shown in FIG. 4, when it is determined in step S118 that the smartphone 100 does not exist in the building (step S118: NO), the main control unit 125 of the smartphone 100 is connected to the BT control master ECU 200 by the BT_IC110. It is determined whether or not a BT connection has been established between the two (step S120). If it is determined that the BT connection is not established (step S120: NO), step S120 is executed again. That is, the process waits until the BT connection with the BT control master ECU 200 is established. When it is determined that the BT connection has been established (step S120: YES), the authentication unit 121 executes mutual authentication with the BT control master ECU 200 (step S122).

The main control unit 125 determines whether or not mutual authentication is successful (step S124). If it is determined that the mutual authentication is not successful (step S124: NO), the process returns to step S122 described above. When it is determined that the mutual authentication is successful (step S124: YES), the building inside / outside determination unit 122 executes the inside / outside determination using WiFi communication (step S128). Specifically, when the building inside / outside determination unit 122 can wirelessly connect between the WiFi access point device 21 installed in the building 20 as shown in FIG. 5 and the WiFi function unit 112. , The smartphone 100 is determined to exist in the building 20, and when such wireless connection is not possible, the smartphone 100 is determined not to exist in the building 20. Whether or not the WiFi function unit 112 and the access point device 21 can be wirelessly connected is determined, for example, when receiving a wireless signal containing the same ESID as the ESID which is the identifier of the access point device 21 registered in advance in the smartphone 100. This is realized by determining that a wireless connection with the access point device 21 is possible.

As shown in FIG. 4, the building inside / outside determination unit 122 determines whether or not the smartphone 100 exists in the building as a result of executing step S128 (step S130). When it is determined that the smartphone 100 is inside the building (step S130: YES), the above-mentioned step S142 is executed. Therefore, in this case, as described above, the BT communication between the smartphone 100 and the key fob 150 and the vehicle 10 (BT control master ECU 200) is not executed, and the execution of the PEPS operation is avoided.

When it is determined that the smartphone 100 does not exist in the building (step S130: NO), the main control unit 125 notifies the BT control master ECU 200 that the smartphone 100 is outside the building by BT communication via BT_IC110. (Step S132).

As shown in FIG. 6, in the smartphone 100, the main control unit 125 determines whether or not there is a notification from the BT control master ECU 200 that the smartphone 100 exists in the approach area Ar1 (step S134). As will be described later, the BT control master ECU 200 determines whether or not the smartphone 100 exists in the approach area Ar1, and as a result, if it is determined that the smartphone 100 exists in the approach area Ar1, the smartphone 100 to that effect is reached. Notification is executed.

When it is determined that there is no notification that the smartphone 100 exists in the approach area Ar1 (step S134: NO), the above-mentioned step S142 is executed. Therefore, in this case, as described above, the BT communication between the smartphone 100 and the key fob 150 and the vehicle 10 (BT control master ECU 200) is not executed, and the execution of the PEPS operation is avoided.

On the other hand, when it is determined that there is a notification that the smartphone 100 exists in the approach area Ar1 (step S134: YES), the main control unit 125 starts BT communication with the key fob 150 via the BT_IC110 (step). S136). The communication availability control unit 123 transmits a communication permission signal to the key fob 150 (step S138). The main control unit 125 notifies the BT control master ECU 200 of the completion of transmission of the communication permission signal to the key fob 150 (step S140). After the completion of step S140, the process returns to step S102.

A-2-2. Processing in the BT control master ECU 200:
As shown in FIG. 7, in the BT control master ECU 200, the main control unit 224 determines whether or not there is a PEPS request for the threshold time or more (step S202). The PEPS request corresponds to, for example, a request for unlocking the door of the vehicle 10 or a request for starting the engine. When it is determined that there is no PEPS request for the threshold time or more, that is, there is a PEPS request within the threshold time (step S202: NO), step S202 is executed again. That is, the process waits until it is determined that there is no PEPS request for the threshold time or longer. In this case, if the PEPS operation has already been executed, such operation is continuously executed. When it is determined that there is no PEPS request for the threshold time or longer (step S202: YES), the main control unit 224 keeps some functions and shifts the BT control master ECU 200 to the sleep state (step S204). For example, only the main control unit 224 and the driver 230 are operated, and the operations of other functional units are stopped.

The main control unit 224 determines whether or not there is a wake-up request from the telematics ECU 410 (step S206), and if it is determined that there is no wake-up request (step S206: NO), returns to the above-mentioned step S204 and sleeps. Continue the state. On the other hand, when it is determined that there is a wakeup request (step S206: YES), the main control unit 224 wakes up the BT control master ECU 200 (step S208). The main control unit 224 transmits a wakeup completion signal to the telematics ECU 410 via the CAN (step S210).

The main control unit 224 starts BT communication via BT_IC211 (step S212). For example, the transmission of advertisements is started, and when the advertisements are received (scanned), the connection is established. The main control unit 224 determines whether or not a connection has been established with the smartphone 100 (step S214). If it is determined that the connection has not been established (step S214: NO), step S214 is executed again. That is, the process waits until the connection with the smartphone 100 is established.

When it is determined that the BT communication connection with the smartphone 100 has been established (step S214: YES), as shown in FIG. 8, the authentication unit 222 in the BT control master ECU 200 mutually authenticates with the smartphone 100 (authentication unit 121). Is executed (step S216). Such mutual authentication is the same as step S122 of the vehicle control process in the smartphone 100 described above.

The main control unit 224 determines whether or not mutual authentication is successful (step S218). If it is determined that the mutual authentication is not successful (step S218: NO), the process returns to step S216 described above. When it is determined that the mutual authentication is successful (step S218: YES), the main control unit 224 determines whether or not there is a notification from the smartphone 100 that the building is outside the building (step S220). If it is determined from the smartphone 100 that there is no notification that the building is outside the building (step S220: NO), step S220 is executed again. That is, the process waits until the smartphone 100 notifies that it is outside the building. As described above, when step S132 of the smartphone 100 is executed, the smartphone 100 notifies the BT control master ECU 200 that the smartphone 100 is outside the building by BT communication.

When it is determined from the smartphone 100 that there is a notification that it is outside the building (step S220: YES), the predetermined area inside / outside determination unit 221 of each sensor 300 during BT communication between the smartphone 100 and the BT control master ECU 200. The relative position of the smartphone 100 with respect to the vehicle 10 is specified from the value of the received signal strength obtained by BT_IC311 (step S222). As shown in FIG. 2, the sensors 300 are dispersedly arranged in the vehicle 10 and intercept the radio signal in the BT communication between the BT control master ECU 200 and the smartphone 100 started in step S212 described above. The value of the received signal strength is obtained. The sensor 300 at a position closer to the smartphone 100 is required to have a higher received signal strength. Therefore, the predetermined region inside / outside determination unit 221 obtains the relative direction and distance of the smartphone 100 with respect to the vehicle 10 (BT control master ECU 200) by using the value of the received signal strength in each sensor 300. Can be done.

The predetermined area inside / outside determination unit 221 determines whether or not the smartphone 100 exists in the approach area Ar1 based on the relative position of the smartphone 100 specified in step S222 (step S224). When it is determined that the smartphone 100 does not exist in the approach area Ar1 (step S224: NO), the main control unit 224 notifies the smartphone 100 that it is outside the approach area Ar1 (step S226). In this case, in the above-mentioned step S134 executed by the smartphone 100, it is determined that there is no notification that the smartphone 100 exists in the approach area Ar1, and the above-mentioned step S142 is executed. After the completion of step S226, the process returns to step S202 described above.

On the other hand, when it is determined that the smartphone 100 exists in the approach area Ar1 (step S224: YES), the main control unit 224 notifies the body ECU 420 via the CAN that the smartphone 100 exists in the approach area Ar1 (step S224: YES). Step S228). Further, the main control unit 224 notifies the smartphone 100 that the smartphone 100 exists in the approach area Ar1 by using BT communication (step S230). In this case, in the above-mentioned step S134 executed in the smartphone 100, it is determined that there is a notification that the smartphone 100 exists in the approach area Ar1, and steps S136 to S140 are executed. As a result, BT communication between the key fob 150 and the BT control master ECU 200 is prohibited.

As shown in FIG. 9, the predetermined region inside / outside determination unit 221 determines the smartphone 100 with respect to the vehicle 10 from the value of the received signal strength obtained by the BT_IC311 of each sensor 300 during the execution of BT communication between the smartphone 100 and the BT control master ECU 200. The relative position is specified (step S232). This step S232 is the same process as in step S222 described above.

The predetermined area inside / outside determination unit 221 determines whether or not the smartphone 100 exists in the entry area Ar2 based on the relative position of the smartphone 100 specified in step S232 (step S234). When it is determined that the smartphone 100 does not exist in the entry area Ar2 (step S234: NO), the process returns to step S212 shown in FIG. 7. Therefore, BT communication with the smartphone 100 will be started again.

As shown in FIG. 9, when it is determined that the smartphone 100 exists in the entry area Ar2 (step S234: YES), the main control unit 224 indicates that the smartphone 100 exists in the entry area Ar2 via CAN. Notify the body ECU 420 (step S236). The predetermined area inside / outside determination unit 221 specifies the relative position of the smartphone 100 with respect to the vehicle 10 from the value of the received signal strength obtained by the BT_IC311 of each sensor 300 during the execution of BT communication between the smartphone 100 and the BT control master ECU 200 (step). S238). This step S238 is the same process as steps S222 and S232 described above.

The predetermined area inside / outside determination unit 221 determines whether or not the smartphone 100 exists in the vehicle interior of the vehicle 10 based on the relative position of the smartphone 100 specified in step S238 (step S240). When it is determined that the smartphone 100 does not exist in the vehicle interior (step S240: NO), the process returns to step S232 described above. Therefore, it is determined again whether or not the smartphone 100 exists in the entry area Ar2. On the other hand, when it is determined that the smartphone 100 exists in the vehicle interior (step S240: YES), the main control unit 224 notifies the body ECU 420 via the CAN that the smartphone 100 exists in the vehicle interior (step S240: YES). Step S242). After the completion of step S242, the process returns to step S202.

As described above, the BT control master ECU 200 determines whether or not the smartphone 100 exists in the approach area Ar1 even if the smartphone 100 receives a notification that the smartphone 100 is outside the building (step S224). When it is determined that the smartphone 100 does not exist in the approach area Ar1, the smartphone 100 is notified that it is outside the approach area Ar1 (step S226), and the process is completed. Therefore, in this case, the determination of whether or not the smartphone 100 exists in the entry area Ar2 (step S234) and the determination of whether or not the smartphone 100 exists in the vehicle interior (step S240) are not executed thereafter, so that the body ECU 420 is used. It is avoided to notify that the smartphone 100 exists in the approach area Ar1, the entry area Ar2, or the vehicle interior. Therefore, it is possible to prevent PEPS from being executed by mistake.

A2-2-3. Processing in Telematics ECU 410:
As shown in FIG. 10, the telematics ECU 410 acquires the detection result of the shift range sensor (not shown) and determines whether or not the shift range of the vehicle 10 is P (parking) (step S302). If it is determined that the shift range is not P (step S302: NO), step S302 is executed again. When it is determined that the shift range is P (step S302: YES), the telematics ECU 410 starts communication (mobile communication) with the center 900 via the mobile communication unit 411 (step S304). The telematics ECU 410 acquires GPS position information of the vehicle 10 from the navigation device 430 (step S306). The telematics ECU 410 notifies the center 900 of the GPS position information acquired in step S306 (step S308).

The telematics ECU 410 determines whether or not the distance data between the vehicle 10 and the smartphone 100 has been received from the center 900 (step S310). If it is determined that the distance data is not received (step S310: NO), step S310 is executed again. That is, the process waits until the distance data is received. As will be described later, in the center 900, the vehicle 10 and the vehicle 10 are based on the GPS position information of the vehicle 10 transmitted in the above step S308 and the GPS position information of the smartphone 100 transmitted in the above step S114 shown in FIG. The distance to the smartphone 100 is obtained, and distance data indicating the distance is transmitted to the vehicle 10.

When it is determined that the distance data between the vehicle 10 and the smartphone 100 is received from the center 900 (step S310: YES), the telematics ECU 410 uses the received distance data to determine whether the smartphone 100 exists in the approach area Ar1. Whether or not it is determined (step S312). When it is determined that the smartphone 100 does not exist in the approach area Ar1 (step S312: NO), the process returns to step S304 described above.

When it is determined that the smartphone 100 exists in the approach area Ar1 (step S312: YES), the telematics ECU 410 transmits a wakeup request to the BT control master ECU 200 via the CAN (step S314). As described above, when the BT control master ECU 200 receives the wake-up request, it is determined that the wake-up request has been received in the above-mentioned step S206 shown in FIG.

The telematics ECU 410 determines whether or not the wakeup completion signal has been received from the BT control master ECU 200 via the CAN (step S316). If it is determined that the wakeup completion signal is not received (step S316: NO), the process returns to step S314. If it is determined that the wakeup completion signal has been received (step S316: YES), the process returns to step S302.

A2-2-4. Processing at center 900:
As shown in FIG. 11, at the center 900, the building inside / outside determination unit 910 determines whether or not the GPS position information of the smartphone 100 has been received from the smartphone 100 (step S402). If it is determined that the GPS position information of the smartphone 100 is not received (step S402: NO), step S402 is executed again. That is, the process waits until the GPS position information of the smartphone 100 is received.

When it is determined that the GPS position information of the smartphone 100 has been received (step S402: YES), the building inside / outside determination unit 910 determines whether or not the smartphone 100 exists in the building based on the received GSP position information and the map information. (Step S404).

As a result of step S404, the building inside / outside determination unit 910 determines whether or not the smartphone 100 exists in the building (step S406), and when it is determined that the smartphone 100 exists in the building (step S406: YES), The mobile communication unit 920 transmits to the smartphone 100 via the building inside / outside determination unit 910 that the smartphone 100 exists in the building (step S407). After the completion of step S407, the process returns to step S402 described above. On the other hand, when it is determined that the smartphone 100 does not exist in the building (step S406: NO), the building inside / outside determination unit 910 places the smartphone 100 in the building via the mobile communication unit 920. It transmits that it does not exist (step S408).

The building inside / outside determination unit 910 calculates the distance between the vehicle 10 and the smartphone 100 based on the GPS position information of the vehicle 10 received from the vehicle 10 (telematics ECU 410) and the GPS position information of the smartphone 100 received from the smartphone 100. (Step S410). The building inside / outside determination unit 910 transmits the distance data (distance data) calculated in step S410 to the telematics ECU 410 of the vehicle 10 via the mobile communication unit 920 (step S412). After the completion of step S412, the process returns to step S402.

A2-2-5. Processing in body ECU 420:
As shown in FIG. 12, in the body ECU 420, the light control unit 423 determines whether or not there is a notification that the smartphone 100 exists in the approach area Ar1 (step S502). When it is determined that there is no notification that the smartphone 100 exists in the approach area Ar1 (step S502: NO), the light control unit 423 executes step S502 again. That is, the process waits until there is a notification that the smartphone 100 exists in the approach area Ar1. As described above, in the BT control master ECU 200, the main control unit 224 notifies the body ECU 420 via the CAN that the smartphone 100 exists in the approach area Ar1 in step 228.

When it is determined that the smartphone 100 is in the approach area Ar1 (step S502: YES), the light control unit 423 controls a headlight (not shown) to turn on the welcome light (step S502: YES). Step S504).

The lock control unit 421 determines whether or not there is a notification that the smartphone 100 exists in the entry area Ar2 (step S506). When it is determined that there is no notification that the smartphone 100 exists in the entry area Ar2 (step S506: NO), the lock control unit 421 executes step S506 again. That is, the process waits until there is a notification that the smartphone 100 exists in the entry area Ar2. As described above, in the BT control master ECU 200, the main control unit 224 notifies the body ECU 420 via the CAN that the smartphone 100 exists in the entry area Ar2 in step 236.

When it is determined that there is a notification that the smartphone 100 exists in the entry area Ar2 (step S506: YES), the lock control unit 421 shifts to the unlock standby state (step S508). Then, the lock control unit 421 determines whether or not there is an unlock operation of the door handle switch 431 by the user (step S510). If it is determined that there is no unlock operation (step S510: NO), step S510 is executed again. That is, the process waits until there is an unlock operation.

When it is determined that there is an unlock operation (step S510: YES), the lock control unit 421 controls the actuator that locks and unlocks the door to unlock the door (step S512).

The start control unit 422 determines whether or not there is a notification that the smartphone 100 is present in the vehicle interior of the vehicle 10 (step S514). When it is determined that there is no notification that the smartphone 100 is present in the vehicle interior (step S514: NO), the start control unit 422 executes step S514 again. That is, the process waits until there is a notification that the smartphone 100 exists in the vehicle 10. As described above, in the BT control master ECU 200, the main control unit 224 notifies the body ECU 420 via the CAN that the smartphone 100 exists in the vehicle interior in step 242.

When it is determined that the smartphone 100 is present in the vehicle interior (step S514: YES), the start control unit 422 operates the start / stop switch 432 while the user depresses the brake pedal. Is determined (step S516). If it is determined that the start / stop switch 432 is not operated while the user depresses the brake pedal (step S516: NO), step S516 is executed again. That is, while the user depresses the brake pedal, the process waits until the start / stop switch 432 is operated.

When it is determined that the start / stop switch 432 is operated while the user depresses the brake pedal (step S516: YES), the start control unit 422 starts the engine (step S518). After the completion of step S518, the process returns to step S502.

According to the vehicle system 500 of the present embodiment described above, the vehicle inside / outside

determination units

122 and 910 for determining whether or not the smartphone 100 exists in the building are provided, and the authentication unit 121 includes the smartphone 100 in the building. The authentication process is executed when it is determined not to be performed, and the authentication process is not executed when it is determined that the smartphone 100 exists in the building. Therefore, the authentication process is executed when the smartphone 100 exists in the building. This can prevent the vehicle 10 from performing the PEPS operation. On the other hand, when it is determined that the smartphone 100 does not exist in the building, the authentication process is executed, and the authentication is successful in the approach area Ar1 where the smartphone 100 is a predetermined area, in the entry area Ar2, or in the vehicle interior. If it is determined that it exists, the vehicle 10 can be made to perform a PEPS operation. Therefore, even if it is possible to erroneously determine that the smartphone 100 exists in the approach area Ar1 or the entry area Ar2 or in the vehicle interior, as long as the smartphone 100 exists in the building, the vehicle 10 will PEPS. It is possible to prevent the operation. As described above, according to the vehicle system 500 of the present embodiment, the vehicle 10 can be made to perform the PEPS operation only when the smartphone 100 is present in the vicinity of the vehicle 10.

Further, the building inside / outside determination unit 910 provided in the center 900 has map information, and uses the GPS position information and the map information of the smartphone 100 obtained from the smartphone 100 to determine whether or not the smartphone 100 exists in the building. Therefore, it is possible to make such a determination with high accuracy.

Further, when the GPS function unit 130 of the smartphone 100 cannot receive the satellite signal (GPS signal), the GPS position information specified by another smartphone existing in the range where BT communication is possible is acquired, and the GPS position information is used. Since the GPS position information of the smartphone 100 is specified, the GPS position information of the smartphone 100 can be specified even when the satellite signal cannot be received.

Further, the predetermined region inside / outside determination unit 221 specifies the distance between the smartphone 100 and the BT control master ECU 200 by using the received signal strength specified by the plurality of sensors 300 of the vehicle 10, and uses the specified distance. Since it is determined whether or not the smartphone 100 exists in the predetermined area (approach area Ar1, entry area Ar2, vehicle interior), it is possible to accurately determine whether or not the smartphone 100 exists in the predetermined area.

Further, the building inside / outside determination unit 122 of the smartphone 100 determines that the smartphone 100 exists in the building when the WiFi function unit 112 can wirelessly connect to the access point device 21, and the WiFi function unit 112 wirelessly connects to the access point device 21. If this is not possible, it is determined that the smartphone 100 does not exist in the building, so it is possible to accurately determine whether or not the smartphone 100 exists in the building.

Further, when it is determined that the smartphone 100 exists in the building, the communication availability control unit 123 of the smartphone 100 instructs the key fob 150 to prohibit BT communication with the BT control master ECU 200, and the key fob 150 uses the smartphone. Since wireless communication with the BT control master ECU 200 is executed or not executed in response to an instruction from 100, the smartphone 100 exists in the building together with the key fob 150 even if the key fob 150 does not have a building inside / outside determination unit. As long as it is possible, the vehicle 10 can be prevented from performing the PEPS operation.

B. Other embodiments:
(B1) In the above embodiment, the building inside / outside determination unit 910 of the center 900 executes a substantial determination of whether or not the smartphone 100 exists in the building, but the present disclosure is not limited to this. For example, the smartphone 100 may store map information in advance, and the smartphone 100 may execute such a substantial determination. For example, the main control unit 125 determines whether or not the smartphone 100 exists in the building based on the GPS position information of the smartphone 100 specified by the position specifying unit 124 and the map information stored in the smartphone 100. You may.

(B2) In the above embodiment, in step S128 of the vehicle control process in the smartphone 100, it is determined whether or not the smartphone 100 exists in the building by using WiFi communication, but the present disclosure is not limited to this. .. For example, the smartphone 100 is configured to have a UWB (Ultra Wide Band) function unit in place of the WiFi function unit 112 or in addition to the WiFi function unit 112, and an access point device for UWB communication is arranged in advance in the building. If so, it may be determined whether or not the smartphone 100 exists in the building by using the determination as to whether or not the wireless connection with the access point device is possible. In such a configuration, it may be determined that the smartphone 100 exists in the building when it can be wirelessly connected to the access point device for UWB communication. Further, in a configuration having a UWB function unit, since it is possible to specify a relatively accurate position by UWB communication, the position information of the smartphone 100 is specified by using UWB communication instead of GPS position information. You may.

(B3) In the above embodiment, the vehicle system 500 performs the PEPS operation, but the keyless entry operation may be executed instead of the PEPS operation or in addition to the PEPS operation. In such a configuration, for example, when a user presses a predetermined button on a predetermined menu screen of the smartphone 100 or presses a predetermined operation button included in the key fob 150, wireless signals can be transmitted / received in response to the button operation. , The smartphone 100 or the key fob 150 and the BT control master ECU 200, and on the premise of successful authentication, a predetermined operation corresponding to the button operation may be executed in the vehicle 10.

(B4) In the above embodiment, the device used together with the key fob 150 as the electronic key for the vehicle is the smartphone 100, but instead of the smartphone 100, each process has portability and is executed by the smartphone 100 described above. It may be any kind of portable device capable of carrying out the above.

(B5) In step S102 of the above embodiment, when the received signal strength of the radio signal output from the BT control master ECU 200 becomes smaller than a predetermined threshold value, the smartphone 100 goes out of the BT communication area of the vehicle 10. Although it was determined that it was released, the present disclosure is not limited to this. For example, when the connection between the smartphone 100 and the BT control master ECU 200 is established and the connection is disconnected, it is determined that the smartphone 100 has gone out of the BT communication area of the vehicle 10. You may.

(B6) In the above embodiment, the key fob 150 may be omitted. In such a configuration, steps S134 to S140 and S142 of the vehicle control process in the smartphone 100 may be omitted. Even in such a configuration, when the smartphone 100 is present in the building, it is possible to prevent the PEPS operation from being executed in the vehicle 10.

(B7) In the above embodiment, among the vehicle control processes in the smartphone 100, steps S108 and S110 are omitted, and instead, the GPS position information of the smartphone 100 identified last time is specified as the GPS position information of this time. You may.

(B8) In the above embodiment, the predetermined region inside / outside determination unit 221 refers to the smartphone 100 with respect to the smartphone 100 from the value of the received signal strength obtained by the BT_IC311 of each sensor 300 during the execution of BT communication between the smartphone 100 and the BT control master ECU 200. The relative position of the smartphone 100 was specified, and it was determined whether or not the smartphone 100 exists in a predetermined area (approach area Ar1, entry area Ar2, vehicle interior), but the present disclosure is not limited to this. For example, in a configuration in which the vehicle 10 has a sensor capable of identifying the distance or position of an obstacle such as LiDAR (Light Detection And Ringing) or a millimeter wave radar, the smartphone 100 can use the measurement result of the sensor. It may be determined whether or not it exists in a predetermined area.

(B9) The smartphone 100, the BT control master ECU 200, the telematics ECU 410, the center 900 (building inside / outside determination unit 910), the body ECU 420 (hereinafter referred to as “smartphone 100, etc.”) and the method thereof described in the present disclosure are based on a computer program. It may be implemented by a dedicated computer provided by configuring a processor and memory programmed to perform one or more embodied functions. Alternatively, the smartphone 100 and the like described in the present disclosure and the method thereof may be realized by a dedicated computer provided by configuring a processor with one or more dedicated hardware logic circuits. Alternatively, the smartphone 100 or the like and its method described in the present disclosure is a combination of a processor and memory programmed to execute one or more functions and a processor composed of one or more hardware logic circuits. It may be realized by one or more dedicated computers configured by. Further, the computer program may be stored in a computer-readable non-transitional tangible recording medium as an instruction executed by the computer.

The present disclosure is not limited to the above-described embodiment, and can be realized by various configurations within a range not deviating from the purpose. For example, the technical features in the present embodiment corresponding to the technical features in the form described in the column of the outline of the invention are for solving a part or all of the above-mentioned problems, or one of the above-mentioned effects. It is possible to replace or combine as appropriate to achieve part or all. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

Claims

Vehicle system (500)
The on-board unit (200) mounted on the vehicle (10) and
A portable device (100) capable of performing wireless communication with the in-vehicle device and functioning as an electronic key of the vehicle, and
An authentication unit (121, 222) that executes an authentication process for authenticating the portable device and the in-vehicle device, and
A predetermined area inside / outside determination unit (221) for determining whether or not the portable device exists in a predetermined area (Ar1, Ar2) equal to or less than a predetermined distance from the vehicle-mounted device.
An operation control unit (420) that causes the vehicle to execute a predetermined operation when it is determined that the execution result of the authentication process is successful in authentication and the portable device exists in the predetermined area.
Building inside / outside determination units (910, 122) for determining whether or not the portable device exists in the building, and
With
The authentication unit executes the authentication process when it is determined that the portable device does not exist in the building, and does not execute the authentication process when it is determined that the portable device exists in the building.
Vehicle system.
In the vehicle system according to claim 1,
The portable device has a position specifying unit (124) for specifying the position information of the portable device.
The building inside / outside determination unit has map information including the position information of the building, acquires the position information of the portable device from the portable device, and uses the acquired position information of the portable device and the map information. A vehicle system that determines whether or not the portable device exists in the building.
In the vehicle system according to claim 2.
The location information is location information specified by GNSS, and is
The portable device
It has a GNSS position acquisition unit (130) that acquires the position information of the portable device by receiving the satellite signal of the GNSS, and a wireless communication unit (110) that can execute wireless communication with another portable device. ,
When the satellite signal cannot be received by the GNSS position acquisition unit, wireless communication is executed with the other portable device to acquire and acquire the position information of the other portable device specified by the other portable device. A vehicle system that identifies the position information of the portable device by using the position information of the other portable device.
In the vehicle system according to claim 3,
The vehicle
With the predetermined area inside / outside determination unit
A plurality of wireless antennas (312) for receiving wireless signals for wireless communication from the portable device, and a signal strength specifying unit (311) for specifying the received signal strength of the wireless signals received by the wireless antenna. Wireless signal sensor (300) and
Have,
The predetermined area inside / outside determination unit
The distance between the portable device and the in-vehicle device is specified by using the received signal strength specified by the plurality of wireless signal sensors, and the portable device is within the predetermined region by using the specified distance. A vehicle system that determines if it exists in.
In the vehicle system according to any one of claims 1 to 4.
The portable device
The inside / outside judgment unit of the building and
A wireless communication unit (112) that executes wireless LAN (Local Area Network) communication or UWB (Ultra Wide Band) communication, and
Have,
The wireless communication unit is preset with communication setting values for wirelessly connecting to the wireless access point device (21) installed in the building.
When the wireless communication unit can wirelessly connect to the wireless access point device, the building inside / outside determination unit determines that the portable device exists in the building, and the wireless communication unit cannot wirelessly connect to the wireless access point device. A vehicle system that determines that the portable device does not exist in the building.
In the vehicle system according to any one of claims 1 to 5.
Using the portable device as the first portable device,
A second portable device (150) capable of executing wireless communication between the vehicle-mounted device and the first portable device and functioning as an electronic key of the vehicle is further provided.
The first portable device is
The inside / outside judgment unit of the building and
A communication availability control unit (123) that instructs the second portable device to allow or prohibit wireless communication with the in-vehicle device.
With
When it is determined that the first portable device exists in the building, the communication availability control unit instructs the second portable device to prohibit wireless communication with the in-vehicle device.
The second portable device is a vehicle system that executes or does not execute wireless communication with the in-vehicle device in response to an instruction from the first portable device to permit or prohibit wireless communication with the in-vehicle device.