JP2018062808A - On-vehicle device and vehicular radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for adjusting the opening direction of a door that opens upward depending on the situation.SOLUTION: A UHF receiving unit 200 receives, from a portable device 10, a request signal for opening a door that opens upward from its closed state. A reception unit 210 receives information on rainfall amount as rainfall information from a rain sensor 56. Upon receipt of the request signal at the UHF receiving unit 200, a control unit 212 opens the door while changing the degree of opening of the door depending on the rainfall information received at the reception unit 210.SELECTED DRAWING: Figure 2

Description

  The present invention relates to communication technology, and more particularly, to an on-vehicle device and a vehicle wireless communication system that perform communication between an on-vehicle device mounted on a vehicle and a portable device possessed by a user.

  An electronic key system is used to automatically open and close the back door of the vehicle. At that time, the portable device possessed by the user transmits a request signal, and the vehicle-mounted device mounted on the vehicle receives the request signal. Subsequently, the back door opener of the vehicle automatically opens and closes the back door (see, for example, Patent Document 1).

JP 2005-307692 A

  By automatically opening and closing the back door and the trunk door, the user's convenience is improved when the user possesses the luggage and wants to load the luggage into the trunk room of the vehicle. However, if the trunk door opens automatically in case of rain, the trunk room may get wet.

  This invention is made | formed in view of such a condition, The objective is to provide the technique which adjusts how to open the door opened upwards according to a condition.

  In order to solve the above-described problems, the vehicle-mounted device according to an aspect of the present invention includes a receiving unit that receives a request signal for opening a door that opens upward from a closed state, and a receiving unit that receives rainfall information. And a control unit that opens the door while changing the degree of door opening according to the rainfall information received by the receiving unit when the receiving unit receives the request signal.

  Another aspect of the present invention is a vehicular wireless communication system. This vehicular wireless communication system includes a portable device that transmits a request signal for opening a door that opens upward from a closed state, and an in-vehicle device that receives the request signal from the portable device. The vehicle-mounted device includes a reception unit that receives the rain information, and a control unit that opens the door while changing the degree of opening of the door according to the rain information received by the reception unit when the request signal is received.

  It should be noted that any combination of the above-described constituent elements and a conversion of the expression of the present invention between a method, an apparatus, a system, a recording medium, a computer program, etc. are also effective as an aspect of the present invention.

  According to the present invention, the way of opening the door that opens upward can be adjusted according to the situation.

FIGS. 1A to 1C are views showing opening and closing of a trunk in a vehicle according to a first embodiment of the present invention. It is a figure which shows the structure of the radio | wireless communications system for vehicles of Example 1 of this invention. 3A to 3C are diagrams showing signal formats used in the vehicular wireless communication system of FIG. It is a sequence diagram which shows the process sequence by the radio | wireless communications system for vehicles of FIG. It is a sequence diagram which shows another processing procedure by the radio | wireless communications system for vehicles of FIG. It is a flowchart which shows the process sequence by the portable device of FIG. It is a flowchart which shows the process sequence by the onboard equipment of FIG. It is a figure which shows the structure of the radio | wireless communications system for vehicles of Example 2 of this invention.

Example 1
Before describing the present invention in detail, an outline will be described. Embodiment 1 of the present invention is a vehicle that performs wireless communication for automatically opening a trunk door of a vehicle between an in-vehicle device mounted on the vehicle and a portable device (electronic key) possessed by the user. The present invention relates to a wireless communication system. In the vehicular wireless communication system, when a user attempts to open a trunk door of a vehicle using a portable device, a request signal for requesting to open the trunk door is transmitted from the portable device. The vehicle-mounted device mounted on the vehicle causes the trunk door opener to automatically open the trunk door when the received request signal is a valid portable device. However, if the trunk door opens in case of rain, the inside of the trunk room gets wet with rain.

  In order to prevent the trunk room from getting wet in the case of rain, in this embodiment, the vehicle is also equipped with a rain sensor, and the vehicle-mounted device uses the rainfall information measured by the rain sensor as the rain information. Accept as. The vehicle-mounted device reduces the degree of opening of the trunk door when the amount of rainfall is greater than the threshold than the degree of opening of the trunk door when the amount of rainfall is less than or equal to the threshold. For example, the degree of opening of the trunk door when the rainfall is below the threshold is fully open, and the degree of opening of the trunk door is half open when the rainfall is greater than the threshold. Here, when the rainfall amount is equal to or less than the threshold value, it corresponds to the case where there is no rainfall, and when the rainfall amount is larger than the threshold value, it corresponds to the case where there is rainfall.

  Fig.1 (a)-(c) shows opening and closing of the trunk door 60 in the vehicle 50 of Example 1 of this invention. These are side views of the vehicle 50. FIG. 1A shows a state where the trunk door 60 is closed. In this state, the degree of opening of the trunk door 60 is indicated as “0 °”. FIG. 1B shows a state in which the trunk door 60 is opened, particularly in a fully opened state. In this state, the degree of opening of the trunk door 60 is indicated as “90 °”. By using the vehicle wireless communication system, the trunk door 60 is automatically opened upward from the closed state in FIG. 1A to the state in FIG. 1B. However, in the state of FIG. 1B, the trunk room gets wet in the case of rain. Hereinafter, a configuration for suppressing the occurrence of such a situation will be described. The description of FIG. 1C will be described later.

  FIG. 2 shows the configuration of the vehicular wireless communication system 1000 according to the first embodiment of the present invention. The vehicle wireless communication system 1000 includes a portable device 10 and an on-vehicle device 20, and the on-vehicle device 20 is mounted on a vehicle 50. The portable device 10 includes an operation unit 100, a UHF transmission unit 104, an LF reception unit 106, a request unit 110, and a response unit 114. The in-vehicle device 20 includes a UHF receiving unit 200, an LF transmitting unit 204, a receiving unit 210, a control unit 212, a notification unit 214, and a detection unit 216. The vehicle 50 includes an ECU (Electronic Control Unit) 52, a trunk opener 54, and a rain sensor 56.

  The portable device 10 is an electronic device that is carried by a user and operated when the trunk door 60 of the vehicle 50 is automatically opened. The portable device 10 may be used not only when the trunk door 60 of the vehicle 50 is automatically opened, but also when the door lock of the vehicle 50 is unlocked / locked. When unlocking and locking the door lock of the vehicle 50, a communication sequence according to the keyless entry method is executed between the portable device 10 and the vehicle-mounted device 20. Since a known technique may be used for the communication sequence according to the keyless entry method, description thereof is omitted here. The portable device 10 is separately provided with a button for unlocking the door lock, a button for locking the door lock, and a button for automatically opening the trunk door 60. Press and hold the button.

  The operation unit 100 of the portable device 10 corresponds to a button for automatically opening the trunk door 60 and is pushed down when the user automatically opens the trunk door 60 of the vehicle 50. When the operation unit 100 is depressed, the operation unit 100 notifies the request unit 110 of the depression. Upon receiving the notification from the operation unit 100, the request unit 110 generates a request signal for opening the trunk door 60 that opens upward from the closed state. FIGS. 3A to 3C show signal formats used in the vehicular wireless communication system 1000. In particular, FIG. 3A shows the format of the request signal.

  The request signal has the same format as the signal for unlocking / locking the door lock of the vehicle 50, that is, the keyless signal in the keyless entry method. Hereinafter, the keyless signal is also referred to as a request signal. The request signal arranges a preamble, a synchronization signal, and data in order. The preamble and the synchronization signal are known signals used for establishing communication between the portable device 10 and the vehicle-mounted device 20. The data includes a function command, an ID code, and a rolling code.

  The function command is a signal for indicating a function to be executed by transmitting a request signal. Therefore, different values are set in the function command for automatically opening the trunk door 60, unlocking the door lock, and locking the door lock. Here, a value for indicating that the trunk door 60 is automatically opened is set in the function command. The ID code is a value for identifying the portable device 10, and a different ID code is assigned to each portable device 10. The rolling code indicates a value that increases every time a request signal is transmitted from the portable device 10, and is indicated by, for example, 2 bytes. Specifically, the value of the rolling code increases by “1” every time a request signal is transmitted. Returning to FIG.

  When the request signal is input from the request unit 110, the UHF transmission unit 104 transmits the request signal to the vehicle-mounted device 20. The request signal is a UHF (Ultra High Frequency) signal, for example, a 300 MHz band signal. The UHF signal is also referred to as an RF (Radio Frequency) signal. As described above, the request unit 110 and the UHF transmission unit 104 request the vehicle-mounted device 20 to automatically open the trunk door 60 by transmitting a request signal in which a function command corresponding to opening the trunk door 60 is set. To do. Thereafter, the request unit 110 increments the value of the rolling code by “1” and holds the value of the rolling code.

  The UHF receiver 200 of the in-vehicle device 20 receives a request signal from the portable device 10. The UHF receiving unit 200 outputs a request signal to the control unit 212. When receiving the request signal from the UHF receiving unit 200, the control unit 212 extracts an ID code and a rolling code from the request signal. The control unit 212 performs pair authentication based on the extracted ID code and the previously stored ID code in order to determine whether the request signal is transmitted from the valid portable device 10. Since a known technique may be used for pair authentication, the description thereof is omitted here.

  When the pair authentication is successful, the control unit 212 determines whether the extracted rolling code satisfies a predetermined condition. Specifically, the control unit 212 stores in advance a rolling code (hereinafter referred to as “reference rolling code”) for collation with a rolling code included in the request signal transmitted from the portable device 10. The reference rolling code is indicated by the same 2 bytes as the rolling code. The control unit 212 defines a condition that “the value of the rolling code is equal to or greater than the value of the reference rolling code”, and by comparing the extracted rolling code value with the value of the reference rolling code, Determine whether the condition is met.

  The control unit 212 determines to open the trunk door 60 when the condition is satisfied. Thereafter, the control unit 212 increments the value of the reference rolling code by “1” and holds the value of the reference rolling code. Note that the processing of the UHF receiving unit 200 and the control unit 212 so far is the same as the processing when the door lock of the vehicle 50 is unlocked / locked.

  Below, unlike the case where the door lock of the vehicle 50 is unlocked / locked, a process for automatically opening the trunk door 60 in the present embodiment will be described. The rain sensor 56 is installed outside the vehicle 50 in FIG. 1 and is a sensor for measuring the amount of rain on the vehicle 50. Since a well-known technique should just be used for the rain sensor 56, description is abbreviate | omitted here. When the control unit 212 receives a request signal, the reception unit 210 receives rainfall information from the rain sensor 56 as rainfall information. The accepting unit 210 outputs rainfall information to the control unit 212.

  As described above, when the control unit 212 determines to open the trunk door 60 based on the determination using the ID code and the rolling code, the control unit 212 compares the rainfall amount with the threshold value. For example, the threshold value is set to such a rainfall amount that the trunk room gets wet when the trunk door 60 is fully opened as shown in FIG. When the rainfall is equal to or less than the threshold value, the control unit 212 determines that the degree of opening of the trunk door 60 is fully opened, that is, set to “90 °” as shown in FIG. If the amount of rainfall is less than or equal to the threshold value, it corresponds to the case where there is no rain. Therefore, if there is no rain, the trunk door 60 is automatically opened until it is fully opened.

  On the other hand, when the rainfall amount is larger than the threshold value, the control unit 212 determines to make the degree of opening of the trunk door 60 smaller than when the rainfall amount is equal to or less than the threshold value. Such a state is shown, for example, in FIG. FIG.1 (c) shows the open state in which the trunk door 60 was half-opened. In this state, the degree of opening of the trunk door 60 is indicated as “45 °”. Returning to FIG. When the amount of rainfall is greater than the threshold value, it corresponds to the case where there is rain. Therefore, when there is rain, the trunk door 60 is automatically opened until half-open. As described above, when the request signal is input, the control unit 212 changes the degree of opening of the trunk door 60 according to the rainfall information received by the receiving unit 210.

  When it is determined that the trunk door 60 is to be opened, the control unit 212 instructs the ECU 52 of the vehicle 50 to open the trunk door 60 while indicating information on the degree of opening of the trunk door 60. The trunk opener 54 is a motor for automatically opening the trunk door 60. If the degree of opening of the trunk door 60 determined by the control unit 212 is fully open, the trunk opener 54 automatically opens the trunk door 60 so as to change from the state of FIG. 1A to the state of FIG. Open to. If the degree of opening of the trunk door 60 determined by the control unit 212 is half open, the trunk opener 54 automatically opens the trunk door 60 from the state of FIG. 1A to the state of FIG. 1C. Open to.

  As a result, when there is rain, the trunk door 60 automatically opens to the state shown in FIG. In such a state, the control unit 212 notifies the notification unit 214 that the trunk door 60 is half open. The notification unit 214 outputs a search signal to the LF transmission unit 204 using the notification from the control unit 212 as a trigger. The search signal is a signal that is transmitted from the vehicle-mounted device 20 to the portable device 10 in smart communication that is also called a smart entry method, a smart key method, or a passive keyless entry (PKE) method.

  FIG. 3B shows the format of the search signal. In the search signal, an authentication command and a burst for RSSI (Received Signal Strength Indicator) are arranged in order. The authentication command includes the aforementioned ID code, function command, and the like. Here, the same value as the value in the request signal is set in the ID code and the function command. The authentication command is encrypted. The RSSI burst is a signal for causing the portable device 10 to measure the received signal strength. Since the RSSI burst may be used as before, the description thereof is omitted here. Returning to FIG.

  The LF transmission unit 204 transmits a search signal to the portable device 10. The search signal is an LF (Low Frequency) signal, for example, a signal in the 125 kHz band. The communication distance of the LF signal is limited to a range of about 2 m from the vehicle 50.

  The LF receiver 106 of the portable device 10 receives the search signal from the vehicle-mounted device 20. The LF receiving unit 106 outputs the search signal to the response unit 114. The response unit 114 extracts the ID code included in the search signal. Further, the response unit 114 executes pair authentication based on the ID code held in advance and the extracted ID. If pair authentication fails, the processing described later is not executed. On the other hand, when the pair authentication is successful, the response unit 114 outputs a response signal in smart communication to the UHF transmission unit 104. The response signal is a signal transmitted from the portable device 10 to the vehicle-mounted device 20 in response to the search signal in smart communication.

  FIG. 3C shows the format of the response signal. Similar to the request signal, the response signal arranges a preamble, a synchronization signal, and data in order. The preamble and the sync signal have the same format as those in the request signal. The data includes an ID code and a response code. The response code is information for indicating that the signal corresponds to the authentication command. Since known techniques may be used for these, description thereof is omitted here. Returning to FIG.

  The UHF transmission unit 104 transmits a response signal to the vehicle-mounted device 20. The response signal is a UHF signal, similar to the request signal. Note that if the LF receiver 106 cannot receive the search signal from the vehicle-mounted device 20, the UHF transmitter 104 does not transmit a response signal. That is, when the search signal from the vehicle-mounted device 20 is received by the LF receiving unit 106, a response signal is transmitted.

  The UHF receiver 200 of the in-vehicle device 20 receives a response signal from the portable device 10. The UHF receiving unit 200 notifies the detection unit 216 that the response signal has been received. The detection unit 216 detects the approach of the portable device 10 when receiving a notification from the UHF reception unit 200. When the distance between the vehicle-mounted device 20 and the portable device 10 is long, the search signal transmitted from the vehicle-mounted device 20 is not received by the portable device 10, so the portable device 10 does not transmit a response signal, and the UHF receiving unit 200 is also used. No response signal is received. On the other hand, when the user carrying the vehicle-mounted device 20 approaches the mobile device 10, the search signal transmitted from the vehicle-mounted device 20 is received by the mobile device 10, so the mobile device 10 transmits a response signal, and the UHF receiving unit 200 also receives the response signal. In other words, in the vehicular wireless communication system 1000, smart communication is used to detect that the user carrying the portable device 10 has approached the vehicle 50 on which the vehicle-mounted device 20 is mounted. When detecting the approach of the portable device 10, the detection unit 216 notifies the control unit 212 of the approach of the portable device 10.

  When the control unit 212 receives the notification from the detection unit 216 when the trunk door 60 of the vehicle 50 is half-opened as shown in FIG. 1C, the trunk door 60 in the case where the rainfall is equal to or less than the threshold value. It is determined that the trunk door 60 is further opened to the extent of opening. This corresponds to automatically opening the trunk door 60 from the half-open state as shown in FIG. 1C to the fully-open state as shown in FIG. 1B when the user approaches the vehicle 50. In response to this, the trunk opener 54 automatically opens the trunk door 60 from the state of FIG. 1C to the state of FIG. 1B.

  This configuration can be realized in terms of hardware by a CPU, memory, or other LSI of any computer, and in terms of software, it can be realized by a program loaded in the memory, but here it is realized by their cooperation. Draw functional blocks. Accordingly, those skilled in the art will understand that these functional blocks can be realized in various forms only by hardware, or by a combination of hardware and software.

  The operation of the vehicular wireless communication system 1000 configured as described above will be described. FIG. 4 is a sequence diagram showing a processing procedure by the vehicular wireless communication system 1000. The portable device 10 transmits a request signal to the vehicle-mounted device 20 (S10). It is determined that there is no rainfall in the vehicle-mounted device 20 (S12). The trunk door 60 of the vehicle 50 is opened (S14).

  FIG. 5 is a sequence diagram showing another processing procedure by the vehicular wireless communication system 1000. The portable device 10 transmits a request signal to the vehicle-mounted device 20 (S50). It is determined that there is rainfall in the vehicle-mounted device 20 (S52). The trunk door 60 of the vehicle 50 is opened halfway (S54). The onboard equipment 20 transmits a search signal to the portable device 10 (S56). The portable device 10 transmits a response signal to the vehicle-mounted device 20 (S58). The vehicle-mounted device 20 detects the approach of the portable device 10 (S60). The trunk door 60 of the vehicle 50 is opened to the end (S62).

  FIG. 6 is a flowchart illustrating a processing procedure performed by the portable device 10. The operation unit 100 detects pressing of the button (S100). The request unit 110 and the UHF transmission unit 104 transmit a request signal (S102). If the LF receiver 106 does not receive the search signal (N in S104) and the time is not over (N in S106), the process returns to Step 104. If the time is over (Y in S106), the process is terminated. When the LF reception unit 106 receives the search signal (Y in S104), the response unit 114 and the UHF transmission unit 104 transmit a response signal (S108). When the time is over, the trunk door 60 of the vehicle 50 opened halfway may be automatically closed. By doing so, unauthorized entry into the vehicle 50 can be suppressed.

  FIG. 7 is a flowchart illustrating a processing procedure performed by the vehicle-mounted device 20. The UHF receiver 200 receives the request signal (S150). If rain is detected in the reception unit 210 (Y in S152), the control unit 212 determines to open the trunk door 60 halfway (S154). The notification unit 214 and the LF transmission unit 204 transmit a search signal (S156). If the UHF receiver 200 does not receive a response signal (N in S158), it stands by. If the UHF receiver 200 receives a response signal (Y in S158), the detector 216 detects an approach (S160). Thereafter, or if rain is not detected in the reception unit 210 (N in S152), the control unit 212 determines to open the trunk door 60 to the end (S162).

  According to the embodiment of the present invention, the trunk door is automatically opened while changing the degree of opening of the trunk door according to the rainfall information. Therefore, the opening method of the trunk door is determined depending on whether the rain is present or not. Can be adjusted. In addition, the degree of opening of the trunk door when the amount of rainfall is greater than the threshold is smaller than the degree of opening of the trunk door when the amount of rainfall as the rainfall information is below the threshold. Opening the door can prevent the trunk room from getting wet by rainfall. Further, when the approach of the portable device is detected, the trunk door is further opened to the extent that the trunk door is opened when the rainfall is below the threshold value. In addition, the convenience of the user can be improved because the user can easily take in and out the parcel. In addition, since smart communication is used to detect the approach of a portable device, when the smart communication function is implemented to unlock / lock the door of the vehicle, the function automatically opens the trunk door. Can be used for

(Example 2)
Next, a second embodiment of the present invention will be described. As in the first embodiment, the second embodiment relates to a vehicular radio communication system that performs radio communication for automatically opening the trunk door of the vehicle. When there is rain, the trunk door is half opened. In the first embodiment, after the trunk door is half opened, the approach of the user to the vehicle is detected by smart communication. On the other hand, in the second embodiment, the approach of the user to the vehicle is detected by the obstacle sensor mounted on the vehicle. Here, it demonstrates centering on the difference with Example 1. FIG.

  FIG. 8 shows the configuration of a vehicular wireless communication system 1000 according to the second embodiment of the present invention. The vehicle wireless communication system 1000 includes a portable device 10 and an on-vehicle device 20, and the on-vehicle device 20 is mounted on a vehicle 50. The portable device 10 includes an operation unit 100, a UHF transmission unit 104, and a request unit 110. The vehicle-mounted device 20 includes a UHF receiving unit 200, a receiving unit 210, a control unit 212, and a detecting unit 216. The vehicle 50 includes an ECU 52, a trunk opener 54, a rainfall sensor 56, and an obstacle sensor 58.

  As described above, when there is rain, the trunk door 60 is automatically opened to the state shown in FIG. In such a state, the control unit 212 notifies the detection unit 216 that the trunk door 60 is half open. The obstacle sensor 58 is installed in the vehicle 50 and detects the presence of a user who has the portable device 10 as an obstacle around the vehicle 50. For the obstacle sensor 58, a known technique may be used, and for example, an ultrasonic sensor is used. The obstacle sensor 58 outputs the detection result to the detection unit 216. When detecting the approach of the user who has the portable device 10 from the detection result from the obstacle sensor 58, the detection unit 216 notifies the control unit 212 of the approach of the user who has the portable device 10. Subsequent processing of the detection unit 216 is the same as before, and thus description thereof is omitted here.

  According to the present embodiment, since the obstacle sensor is used to detect the approach of the portable device, the process for detecting the approach can be simplified.

  The outline of one embodiment of the present invention is as follows. A vehicle-mounted device according to an aspect of the present invention includes a receiving unit that receives a request signal for opening a door that opens upward from a closed state, a receiving unit that receives rainfall information, and a request signal in the receiving unit. And a control unit that opens the door while changing the degree of door opening according to the rainfall information received by the reception unit.

  According to this aspect, since the door is opened while changing the degree of opening of the door according to the rainfall information, it is possible to adjust how the door is opened upward depending on the situation.

  The control unit may reduce the degree of opening of the door when the amount of rainfall is greater than the threshold than the degree of opening of the door when the amount of rainfall as rainfall information is equal to or less than the threshold. In this case, the degree of opening of the door when the amount of rainfall is greater than the threshold is smaller than the degree of opening of the door when the amount of rainfall is below the threshold. It can suppress getting wet.

  The detection unit that detects the approach of the user who has the portable device or the portable device, and the control unit, when the rainfall is greater than the threshold, the rainfall is below the threshold when the detection unit detects the approach Open the door further to the extent that the door opens. In this case, if the user who has the portable device or the approach of the portable device is detected, the door is further opened to the extent that the door is opened when the amount of rainfall is equal to or less than the threshold value, so that convenience for the user can be improved.

  The detection unit that detects the approach of the user who has the portable device or the portable device and the control unit, when the amount of rainfall is greater than the threshold, the door automatically opens when the detection unit detects the approach. You may change to the mode that can be opened manually. In this case, when the user who has the portable device or the approach of the portable device is detected, the user can further open the door manually.

  Another aspect of the present invention is a vehicular wireless communication system. This vehicular wireless communication system includes a portable device that transmits a request signal for opening a door that opens upward from a closed state, and an in-vehicle device that receives the request signal from the portable device. The vehicle-mounted device includes a reception unit that receives the rain information, and a control unit that opens the door while changing the degree of opening of the door according to the rain information received by the reception unit when the request signal is received.

  According to this aspect, since the door is opened while changing the degree of opening of the door according to the rainfall information, it is possible to adjust how the door is opened upward depending on the situation.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those constituent elements or combinations of processing processes, and such modifications are also within the scope of the present invention. .

  In the first and second embodiments, the UHF transmission unit 104 and the UHF reception unit 200 use UHF signals. However, the present invention is not limited to this. For example, a signal other than a UHF signal and having a frequency higher than that of LF may be used. According to this modification, the degree of freedom of configuration can be improved.

  In the first and second embodiments, when the control unit 212 detects that the user who has the portable device 10 or the approach of the portable device 10 in the situation where the trunk door 60 is half-opened due to rain, the trunk door 60 is further Open automatically. However, the present invention is not limited to this. For example, when the control unit 212 detects that the user holding the portable device 10 or the approach of the portable device 10 is detected in a situation where the trunk door 60 is half-open due to rain, a mode in which the trunk door 60 is automatically opened. Then, the mode may be changed to a mode in which the trunk door 60 is manually opened. When the user approaches the vehicle 50, the trunk door 60 of the vehicle 50 is manually opened. According to this modification, when the user who has the portable device 10 or the approach of the portable device 10 is detected, the user can further open the trunk door 60 manually.

  In the first and second embodiments, the control unit 212 determines half-opening of the trunk door 60 when the rainfall amount is larger than the threshold value, and determines full opening of the trunk door 60 when the rainfall amount is less than or equal to the threshold value. doing. However, the present invention is not limited to this. For example, in the above case, the trunk door 60 may not be fully open or half open. That is, the degree of opening of the trunk door 60 when the amount of rainfall is greater than the threshold may be smaller than the degree of opening of the trunk door 60 when the amount of rainfall is less than or equal to the threshold. According to this modification, the degree of freedom of configuration can be improved.

  In the first and second embodiments, the control unit 212 determines to open the trunk door 60 halfway when the rainfall amount is greater than the threshold value. However, the present invention is not limited to this. For example, the control unit 212 may change the degree of opening of the trunk door 60 according to the amount of rainfall. At that time, as the amount of rainfall increases, the degree of opening of the trunk door 60 is reduced. According to this modification, the trunk door 60 can be opened only to the extent suitable for the rainfall.

  In the first and second embodiments, the control unit 212 opens the trunk door 60 half-open when the amount of rainfall is greater than the threshold, and opens the trunk door 60 fully when an approach is detected. However, the present invention is not limited to this. For example, when the rainfall amount is larger than the threshold value, the control unit 212 may end the processing by causing the trunk door 60 to be half open. According to this modification, processing can be simplified.

  In the first and second embodiments, the control unit 212 opens the trunk door 60 half-open when the amount of rainfall is greater than the threshold, and opens the trunk door 60 fully when an approach is detected. However, the present invention is not limited to this. For example, such a process may be executed regardless of whether there is rainfall. At this time, the rain sensor 56 may not be mounted on the vehicle 50. According to this modification, processing can be simplified.

  In the first and second embodiments, the trunk door 60 is a processing target. However, the present invention is not limited to this. For example, the object of processing may not be the trunk door 60, but may be a door that opens upward from a closed state. The door that opens upward from the closed state includes a back door. According to this modification, the degree of freedom of configuration can be improved.

  DESCRIPTION OF SYMBOLS 10 Portable machine, 20 Onboard equipment, 50 Vehicle, 52 ECU, 54 Trunk opener, 56 Rain sensor, 58 Obstacle sensor, 60 Trunk door, 100 Operation part, 104 UHF transmission part, 106 LF reception part, 110 Request part, 114 Response unit, 200 UHF reception unit, 204 LF transmission unit, 210 reception unit, 212 control unit, 214 notification unit, 216 detection unit, 1000 wireless communication system for vehicle.

Claims (5)

A receiving unit that receives a request signal for opening a door that opens upward from a closed state from a portable device;
A reception department that accepts rainfall information,
When receiving the request signal in the receiving unit, the control unit that opens the door while changing the degree of opening of the door according to the rainfall information received in the receiving unit,
A vehicle-mounted device comprising:   The control unit reduces the degree of opening of the door when the amount of rainfall is greater than the threshold than the degree of opening of the door when the amount of rainfall as rainfall information is less than or equal to the threshold. The in-vehicle device according to claim 1. A detection unit for detecting the user who has the portable device or the approach of the portable device;
When the amount of rainfall is greater than a threshold value, the control unit further opens the door to the degree of opening of the door when the amount of rainfall is equal to or less than the threshold value when the detection unit detects an approach. The vehicle-mounted device according to claim 2, wherein: A detection unit for detecting the user who has the portable device or the approach of the portable device;
The controller is configured to change from a mode in which the door is automatically opened to a mode in which the door is manually opened when the detection unit detects approach when the amount of rainfall is greater than a threshold value. Item 2. The vehicle-mounted device according to item 2. A portable device that transmits a request signal for opening a door that opens upward from a closed state;
A vehicle-mounted device for receiving a request signal from the portable device,
The in-vehicle device is
A reception department that accepts rainfall information,
When receiving a request signal, while changing the degree of opening of the door according to the rainfall information received in the reception unit, a control unit that opens the door;
A vehicular wireless communication system.

Images