JP2012026141A - Vehicular door lock control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular door lock control system that periodically transmitting a signal wirelessly to a prescribed transmission area outside a vehicle, and that enables power saving control according to use situation of a user in order to improve the user's convenience and according to the remaining capacity of a battery.SOLUTION: A vehicular door lock control system 1 periodically transmitting a polling signal wirelessly to a prescribed transmission area 500 outside the vehicle includes a transmission condition storing section 10a for storing transmission conditions of the polling signal and a door ECU 5 for making transmission means transmit the polling signal based on the stored transmission conditions. The transmission condition storing section 10a individually stores at least one of transmission object area and transmission cycle as the transmission condition for each of segment periods that are generated by dividing a continuously repeated prescribed cycle period into a plurality of periods.

Description

  The present invention relates to a vehicle door lock control system.

  In recent vehicles, a transmission means for periodically transmitting a polling signal to a predetermined transmission area outside the vehicle, and an ID code for wirelessly transmitting a smart key existing in the transmission area as a return signal for the polling signal Receiving means for wirelessly receiving, collating means for collating the received ID code with a pre-stored master code, and door lock of the vehicle can be unlocked by a predetermined unlocking operation based on the collation result There is a vehicle door lock control system that includes an unlocking control unit that switches between an unlocking permission state and an unlocking prohibition state in which unlocking is disabled (Patent Document 1). .

JP-A-10-205186

  However, in the vehicle door lock control system that periodically transmits a signal wirelessly in a predetermined transmission area outside the vehicle, as in the smart entry system described above, at present, a fixed transmission cycle is fixedly determined. The user convenience is not taken into consideration. On the other hand, as a power-saving measure for in-vehicle batteries that supply driving power to the vehicle door lock system, there is a technology related to power-saving technology that increases the polling signal transmission period or changes the verification area as the number of days the vehicle is left However, in these cases, there is a possibility that the wireless transmission cycle is long when the user wants to use it, or the polling signal is not transmitted to the transmission area to be used. Although it can be expected, the convenience for the user is decreasing.

  SUMMARY OF THE INVENTION An object of the present invention is to enable power saving control in accordance with a user's usage situation in a vehicle door lock control system for periodically transmitting a signal wirelessly within a predetermined transmission area outside the vehicle in order to improve user convenience. At the same time, it is to enable power saving control according to the remaining battery level.

Means for Solving the Problems and Effects of the Invention

A vehicle door lock control system for solving the above problems is as follows.
A transmission unit that is provided corresponding to a door of the vehicle and that wirelessly transmits a polling signal within a predetermined transmission area outside the corresponding door; a transmission condition storage unit that stores a transmission condition of the polling signal; A transmission control unit that causes the transmission unit to transmit a polling signal based on the transmission condition, and an ID code transmitted from the wireless portable communication device after receiving the polling signal by the wireless portable communication device existing in the transmission area. Receiving means for receiving wirelessly, collating means for executing a collating process for the ID code, and an unlocking permitted state and an unlocking state in which the door lock of the vehicle can be unlocked by a predetermined unlocking operation based on the collation result A vehicle door lock control system comprising: an unlocking control means for switching between an unlocking prohibition state which becomes impossible,
The transmission condition storage unit, as the transmission condition, at least one of the transmission target area to be transmitted among the transmission areas and the transmission cycle, and a divided period obtained by dividing a predetermined periodic period into a plurality of periods Each is stored individually.

  According to the configuration of the present invention, the predetermined periodic period is divided in advance for each of the plurality of divided periods, and individual transmission conditions can be set for each of the divided periods. Conditions can be set, and wasteful battery consumption can be suppressed and convenience can be improved at the same time.

  However, in the first place, in a state where the battery level of the vehicle is low, priority should be given to suppression of useless battery consumption rather than convenience. For this reason, in the above-mentioned present invention, it is configured to include a remaining amount detecting means for detecting the remaining battery amount of the vehicle, and the transmission condition storage unit is provided for each remaining amount level of the remaining battery amount divided into a plurality of stages. The transmission condition within the cycle period is stored, and the transmission control unit polls the transmission unit based on the transmission condition within the cycle period corresponding to the remaining battery level detected by the remaining amount detection unit. It can be configured to transmit a signal. According to this configuration, it is possible to change the transmission condition set for each cycle period (for each division period within the cycle period) according to the remaining battery level of the vehicle, It is also possible to prioritize suppression of wasteful battery consumption.

  In the present invention, the cycle period is one day, and the division period is a predetermined daytime period including at least 11 am to 3 pm and a predetermined daytime period including at least 11 pm to 3 am. And can be configured to have a night period. In consideration of the fact that the daytime period is generally more frequently used than the nighttime period, at least the daytime period is configured so that the transmission cycle is set shorter than the nighttime period. It is possible to simultaneously improve wasteful battery consumption and convenience.

  In the present invention, the period period is one day, and the division period can be configured to have at least a predetermined morning and evening commuting time zone. Considering that the commuting time zone is used more frequently than the remaining segment period, the transmission cycle is set to be shorter than the remaining segment period. It is possible to simultaneously improve battery convenience and convenience.

  In the present invention, the transmission condition storage unit may store the transmission conditions individually for each second division period in which the division period is the first division period and the first division period is divided into a plurality of division periods. it can. As a result, it is possible to set an optimal transmission condition for each finer division period, so that it is possible to further reduce wasteful battery consumption and improve convenience.

  In the present invention, the cycle period is one week, the first segment period is a weekday and a holiday, and the second segment period corresponding to the weekday has at least a predetermined morning and evening commute time zone. However, the transmission period is set shorter than the remaining commuting time period, and the second division period corresponding to the holiday is a predetermined daytime period including at least 11 am to 3 pm And a predetermined nighttime period including at least 11:00 pm to 3:00 am, and at least the daytime period can be configured to have a transmission cycle shorter than the nighttime period. Thereby, since the transmission conditions can be set according to the characteristics of weekdays and holidays, it is possible to further suppress useless battery consumption and improve convenience.

  In the present invention, in the case of a configuration having a daytime period and a nighttime period as the division period, the transmission condition storage unit stores a predetermined transmission area outside the doors of all the vehicle seats as a transmission target area in the daytime period. The predetermined transmission area outside the driver's seat door of the vehicle can be stored as the transmission target area in the night period. In the first place, since the vehicle is used less frequently at night, it is only necessary that the outside of the driver's seat door, which is the minimum location, be the transmission target area, thereby suppressing wasteful battery consumption. On the other hand, since the possibility of using the vehicle by a family or a plurality of people is increased during the daytime, the convenience of the vehicle is increased because the area outside the door of all the seats is the transmission target area.

  In the present invention, in the case of a configuration having a commuting time zone as a division period, the transmission condition storage unit stores a predetermined transmission area outside the driver's seat door of the vehicle as a transmission target area in the commuting time zone. Can be configured. Since the commuter time zone is generally used by commuters as drivers, it suffices for the area to be transmitted even outside the driver's seat door, thereby suppressing useless battery consumption.

  In the present invention, it may be configured to include a customizing means for changing and setting the period period, the divided period, and the transmission condition in each divided period based on a change setting operation input by a user to a predetermined operation input unit. Since the present invention is characterized in that the optimum transmission conditions can be set for each segment period, if the optimum conditions can be set according to the individual circumstances of each individual user, further wasteful battery consumption can be suppressed. Thus, the vehicle can be made even more convenient.

  In the present invention, when the door lock is unlocked in the vehicle, the door lock of which door is unlocked and whether the situation at the time of unlocking corresponds to each division period is specified. Unlocking history storage means for storing / accumulating the specified contents as unlocking history information in the unlocking history storage unit, and statistics based on the unlocking history information stored / accumulated when the user performs change setting operation input Statistical information display means for displaying information on the screen. Thereby, since the user can grasp the past tendency of door unlocking, it is possible to manually set more suitable transmission conditions.

  In the present invention, when the door lock is unlocked in the vehicle, the door lock of which door is unlocked and whether the situation at the time of unlocking corresponds to each division period is specified. The unlocking history storage means for storing / accumulating the specified contents as the unlocking history information in the unlocking history storage unit, and the door lock with the higher unlocking frequency based on the stored / accumulated unlocking history information. It can be updated with transmission condition updating means for updating the transmission condition so that the transmission period by the corresponding transmission means increases in the segment period with higher lock frequency. Thereby, since the optimal transmission conditions are automatically set based on the learning information learned by the vehicle, the user's hands are not bothered.

  By the way, in the configuration in which the transmission condition within each cycle period is set for each remaining battery level of the vehicle, the transmission condition storage unit stores the remaining battery level of the vehicle above a predetermined threshold remaining level. The transmission conditions stored separately for each segment period are stored in association with the remaining level, while the remaining level that does not exceed the threshold remaining level is over the entire period period. One pattern of transmission conditions can be associated and stored. Thereby, the process when the remaining amount level is low becomes simpler. Furthermore, in this case, the transmission condition storage unit sets the threshold remaining amount level as the first threshold remaining amount level, and falls below the second threshold remaining amount level that is lower than the first threshold remaining amount level. It can be configured such that a transmission condition for stopping transmission of a polling signal is stored in association with the remaining level. In situations where the battery level is extremely low, priority can be given to manual unlocking.

The block diagram which shows one Embodiment of the door lock control system for vehicles of this invention. The figure which shows the transmission area outside a vehicle. The flowchart of the flow of transmission control. The flowchart which shows the flow of a transmission process. The 1st example of the transmission conditions of this invention. The 2nd example of the transmission conditions of this invention. The 3rd example of the transmission conditions of this invention. The figure which shows an example of unlocking log | history information. The figure which shows the 1st example of the statistical information based on unlocking log | history information. The figure which shows the 2nd example of the statistical information based on unlocking log | history information. The 4th example of the transmission conditions of this invention. The 5th example of the transmission conditions of this invention. The 6th example of the transmission conditions of this invention.

  Hereinafter, an embodiment of a vehicle door lock control system of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram schematically showing a configuration of a smart entry system which is an embodiment of a vehicle door lock control system of the present invention. A smart entry system 1 shown in FIG. 1 includes a verification ECU 2 mounted on a vehicle 100 and a smart key (so-called wireless portable key or electronic key, which corresponds to the wireless portable communication device of the present invention). 9 is comprised. With this configuration, a polling radio wave (polling signal) is wirelessly output in a predetermined key search area (predetermined transmission area) 500 around the outside of the vehicle, and in the key search area 500 based on wireless reception of the return signal. While searching for the existing smart key 9, the ID code (identification information) received wirelessly from the smart key 9 is collated, the door lock unlocking permission is given based on the collation result, and the door lock unlocking permission is granted. In this state, when a predetermined door lock unlocking operation is detected, a series of smart entry functions are realized in which the door lock mechanism is activated to unlock.

  Specifically, the smart entry system 1 searches for the wireless portable communication device 9 in a predetermined transmission area 500 provided corresponding to each door 101 of the vehicle 100 and outside each door 101 corresponding thereto. To the outside transmission unit 50 based on the transmission condition stored in the transmission condition storage unit 10a that stores the transmission condition of the polling signal, and the transmission condition storage unit 10a that stores the transmission condition of the polling signal. After receiving the polling signal by the door ECU (transmission control means) 5 for transmitting the polling signal and the wireless portable communication device 9 existing in the transmission area 500, the ID code transmitted from the wireless portable communication device 9 is wirelessly received. A receiving unit (receiving means) 4 and a matching ECU (matching means) 2 that executes a matching process on the ID code, and further includes a door EC 5 is configured to switch the door lock of the vehicle 100 between an unlocking permitted state where the unlocking is enabled by a predetermined unlocking operation and an unlocking prohibited state where the unlocking is impossible based on the collation result. (Unlocking control means).

  The verification ECU (verification means) 2 includes a microcomputer including a CPU, ROM, RAM, memory, input / output unit (I / O), and the like as main components, and includes an external storage device 3, each seat ECU 5, and a reception unit 4. Connected. In addition, various programs for realizing the smart entry function as described above are stored in a storage unit (ROM or the like) in the verification ECU 2. A master code for vehicle verification is stored in the external storage device 3.

  Each seat door ECU (transmission control means, unlocking control means) 5 is provided corresponding to each door 101 of the vehicle. Here, as shown in FIG. 2, a driver seat (D seat) and an assistant are provided. Seats (P seats) and luggage doors 101 are provided. Each door ECU 5 includes a microcomputer including a CPU, ROM, RAM, memory, input / output unit (I / O) and the like as main components, and is connected to the verification ECU 2. In addition, each door ECU 5 is locked by a vehicle exterior transmission unit 50, a vehicle exterior unlocking operation unit (for example, a touch sensor) 51, a vehicle exterior locking operation unit (touch switch) 52, and a lock mechanism of the corresponding door 101. The door lock drive unit (actuator and its drive circuit) 53 for switching between the state (locked state) and the unlocked state (unlocked state), and whether the lock mechanism is in the unlocked state or the locked state Are connected to a lock state detection unit (lock position switch) 54, a door open / close detection unit (door courtesy switch) 55, and the like.

  The outside transmission unit (transmission means) 50 is incorporated in, for example, the door handle unit 102 of the corresponding door, and periodically transmits a polling signal (for example, a radio wave in the LF (long wave) band) around the door. This polling signal is output-adjusted so as to reach only within a predetermined key response area (predetermined transmission area: FIG. 2) 500 of about 70 cm to 1 m from each door. As a result, only the smart key 9 existing in the key response area 500 can receive this polling signal, and is subject to the collation processing by the collation ECU (collation means) 2.

  The receiving unit 4 receives a return signal from the smart key 9 in the key response area 500 (response signal: for example, a radio wave in the RF (high frequency) band) and sends it to the verification ECU 2. The return signal from the smart key 9 includes data that makes it possible to identify which door 101 corresponds to the key response area 500 corresponding to the smart key 9.

  The smart key 9 (portable key: portable wireless communication device) functions as a portable wireless communication device capable of transmitting and receiving data to and from the verification ECU 2. In this embodiment, the smart key 9 is shown in FIG. As described above, the controller 91 has a configuration in which the LF receiver 92, the RF transmitter 93, and the various operating units 95 are connected.

  The control unit 91 has a memory (not shown) for storing an ID code unique to the vehicle, and performs an operation unit for unlocking / locking a door lock by a user operation as a keyless entry function, door opening / closing, etc. A known operation unit 95 such as an operation unit is connected.

  The LF receiver 92 receives various signals wirelessly transmitted from the vehicle 100 as radio waves in a predetermined LF band, and transmits data included in the received signals to the controller 91. Based on the data, the control unit 91 transmits a control signal for transmission including transmission data to the RF transmission unit 93 to transmit a response signal corresponding to the received signal. The RF transmission unit 93 receives the control signal from the control unit 91 and is driven based on the control signal, and wirelessly transmits the response signal to the outside as a radio wave in a predetermined RF band.

  Hereinafter, the door lock unlocking process by smart entry will be described.

  The verification ECU 2 wirelessly outputs (LF transmission) a polling signal (activation signal) from the outside transmission unit 50 as a polling signal for searching for a portable key outside the vehicle at a predetermined cycle. On the other hand, when the user carrying the smart key 9 performs an operation (operation) to position the smart key 9 in the key response area (transmission area) 500, the smart key 9 is connected to the LF receiver 92. Then, the polling signal is wirelessly received (LF reception), and the control unit 91 wirelessly outputs (RF transmission) a predetermined response signal in response thereto from the RF transmission unit 93.

  When the verification ECU 2 wirelessly receives (RF reception) the response signal, the verification unit 2 confirms the presence of the smart key 9 corresponding to the host vehicle 100 based on the response signal. When the presence of the corresponding smart key 9 is confirmed, a request signal (ID code request signal) for requesting the ID code specific to the corresponding smart key 9 is wirelessly output from the outside transmission unit 50 ( LF transmission). If the corresponding smart key 9 is wirelessly received by the LF receiving unit 92, the control unit 91 sends a signal including the stored ID code as a response signal in response to the RF transmission unit 93. Wireless output (RF transmission).

  When the response ECU wirelessly receives this response signal, the verification unit 2 compares the ID code included in the response signal with the ID code stored by itself (verification process), and in the case of verification match (verification OK) Only in this case, it is possible to perform locking / unlocking operation of the door lock on the vehicle side. That is, only in the case of collation matching (verification OK), a predetermined unlocking operation (for example, grasping a door handle) to the vehicle exterior locking operation unit 52 / a predetermined locking operation (for example, a vehicle exterior unlocking switch) 7), the door lock driving unit 53 is driven, and the door can be locked / unlocked. On the contrary, in the case of collation mismatch (collation NG), the door lock driving unit 53 is not driven even if these predetermined unlocking operations and predetermined locking operations are performed, and the door cannot be locked / unlocked.

  The polling signal in the present embodiment may be a signal that is periodically transmitted and output in accordance with a specified transmission condition in the smart entry function. For example, the smart key 9 (control unit 91) in the sleep state is connected to the polling signal. It can also be called an activation signal that is activated upon reception. In addition, the polling signal in the present embodiment may not only confirm the existence of the smart key 9 corresponding to the host vehicle 100 but also request the ID code of the smart key 9 at the same time. An ID code is included in the returned response signal.

  In this embodiment, the polling signal transmission conditions are stored in a predetermined storage unit (transmission condition storage unit) 10a of the main ECU 10 connected to the door ECU 5 of each seat. The transmission conditions stored in the main ECU 10 include at least one of a transmission target area to be transmitted in the transmission area 500 corresponding to each door 101 and a transmission cycle. The transmission conditions in this embodiment can be set including both of them as shown in FIGS. Note that the transmission condition of the present embodiment is the transmission condition 1 in FIG.

  In the transmission conditions in this embodiment, the transmission target area and the transmission cycle are individually determined for each divided period obtained by dividing a predetermined periodic period that is continuously repeated into a plurality of periods. In the case of FIG. 5, a period of one week is defined as a periodic period that is continuously repeated, and a weekday and a holiday are defined as divided periods obtained by dividing the periodic period into a plurality of periods. As a result, transmission conditions according to the user can be determined for each division period, so that the number of polling radio wave outputs in the useless period and useless transmission area can be reduced and the consumption of battery power can be suppressed. In addition, since the number of polling radio wave outputs in the necessary transmission area is increased and reliable verification processing can be performed with higher responsiveness, convenience is increased.

  Furthermore, in the transmission conditions in the present embodiment, if the above-described segment period is the first segment period, the transmission target area and the transmission cycle are divided into the second segment periods into which the first segment period is segmented. Are determined individually. Thereby, since the transmission condition according to the user can be determined for each second divided period obtained by further dividing each divided period in the cycle period, the number of polling radio wave outputs in the useless period and the useless transmission area is reduced. While the battery power consumption can be further reduced and the number of polling radio wave outputs in the necessary period and the necessary transmission area can be increased, more reliable verification processing can be performed with higher responsiveness.

  More specifically, in the case of the transmission condition 1 in FIG. 5, the second division period corresponding to the first division period called weekdays has at least a predetermined morning and evening commuting time zone and is called a holiday. The second division period corresponding to the first division period is a predetermined daytime period including at least 4 hours from 11 am to 3 pm and at least 4 hours from 11 pm to 3 am And a predetermined nighttime period that does not include the daytime period.

  In the transmission condition 1 of FIG. 5, the transmission period is set shorter in the second divided period of morning and evening commuting time than the remaining second divided period. Thereby, since the transmission frequency of the commuting time zone on weekdays increases, the convenience of the user who uses it during the commuting time zone increases. On the other hand, since it is expected that the frequency of use is low in other time zones, the frequency of transmission in the remaining time zone on weekdays is reduced, and consumption of useless battery power is suppressed. Further, only the transmission area 500 corresponding to the driver's seat door 101 of the vehicle 100 is set as the transmission target area of the commuting time zone. Since it is expected that the user of the commuting time zone is mainly the driver, only the transmission area 500 corresponding to the driver's seat door 101 is set as the transmission target area of the commuting time zone, and wasteful battery power consumption is set. Is suppressed. Further, the fact that the vehicle 100 is used for commuting means that the vehicle 100 is used in the daytime hours other than the morning and evening commuting hours (here, the time zone including at least 11 am to 3 pm). Since only non-commuters can be used and the frequency of use is expected to be low, only the transmission area 500 corresponding to the driver's seat door 101 is set as the transmission target area during the daytime period. In addition, the transmission cycle is set to be longer than the morning and evening commuting time zone. As a result, wasteful use of battery power is suppressed. Further, since the frequency of use of the vehicle 100 is low in the night time zone (here, the time zone including at least 11:00 pm to 3:00 am) in the evening time other than the morning and evening commuting time zone, driving is minimally performed. By setting only the transmission area 500 corresponding to the seat door 101 as the transmission target area and further setting the transmission cycle longer than the others, wasteful use of battery power is suppressed.

  In addition, in the transmission condition 1 of FIG. 5, the second segment period corresponding to a predetermined daytime period including at least 11 am to 3 pm includes at least 11 pm to 3 am in advance. The transmission cycle is set to be shorter than another second segment period corresponding to the determined night period. This is because the use frequency of the vehicle 100 is expected to be higher during the daytime period, which increases convenience. In addition, since the first division period for the second division period corresponding to these daytime and nighttime periods is a holiday, it is expected that families other than the driver will board the daytime period. A transmission area 500 corresponding to all the doors 101 is set as the target area. Considering that weekdays are used only during commuting, it is expected that more vehicles 100 will be used on holidays, so it is convenient to set the transmission cycle shorter than weekdays. Is increasing. On the contrary, for the night period, since the frequency of use of the vehicle 100 is low in the first place, at least, only the transmission area 500 corresponding to the driver's seat door 101 is set as the transmission target area, and further, the transmission cycle is set from the day period. It is also set long to suppress wasteful battery power consumption. In addition, for this night period, the transmission cycle is set longer than the shortest transmission cycle on weekdays (for example, the commuting time zone on weekdays for which use is surely expected). Furthermore, since the nighttime period of this holiday is more likely to be used than the nighttime period from 11:00 pm to 3:00 am on weekdays, the nighttime period of the holiday is longer than the nighttime period of weekdays. I try to set it short.

  Further, in the present embodiment, transmission conditions within each cycle period are determined for each remaining battery level of the battery level divided into a plurality of stages, and a predetermined storage unit (transmission condition storage unit) 10a of the main ECU 10 is determined. Is remembered. The main control unit 10 includes a microcomputer including a CPU, a ROM, a RAM, a memory, an input / output unit (I / O), and the like as main components. Connected to an amount detection unit (remaining amount detection means) 11. The door ECU 5 of each seat acquires the detection result of the remaining battery level detected by the remaining battery level detection unit 11 from the main ECU 10, and within a cycle period corresponding to the acquired remaining level detection result. Based on the transmission conditions, a corresponding polling signal is transmitted from the corresponding outside vehicle transmission unit 50.

  More specifically, in the case of transmission condition 1 in FIG. 5, the remaining battery level of vehicle 100 is higher than a predetermined first threshold remaining level (above a certain level in FIG. 5). In other words, while the transmission conditions individually stored for each of the above-described division periods are set in association with each other, the remaining amount level that does not exceed the first threshold remaining amount level (the low level and the minimum level in FIG. 5). ), One pattern of transmission conditions is set in association with the entire period, and the transmission condition is fixed to one. As a result, the door ECU 5 of each seat eliminates the need to select a transmission condition when the remaining battery level does not exceed a predetermined first threshold remaining level, and only needs to transmit under the determined condition. The transmission condition determination process is simplified.

  Further, in the case of transmission condition 1 in FIG. 5, the remaining amount level is lower than the first threshold remaining amount level at the remaining amount level where the remaining amount of the battery of the vehicle 100 does not exceed the first threshold remaining amount level. The battery level is lower than the second threshold remaining level (the lowest level in FIG. 5) than the remaining level (lower level in FIG. 5) that is not lower than the second threshold remaining level. Transmission conditions are set such that the power consumption level is reduced. In particular, when the threshold remaining amount level is below the lowest remaining amount level (here, the second threshold remaining amount level: the lowest level in FIG. 5), transmission for stopping the transmission of the polling signal over the entire period period described above. Conditions are set in association with each other.

  The transmission condition 2 in FIG. 6 is different from the transmission condition 1 in FIG. 5 only in the holiday transmission condition. Specifically, the transmission conditions set for holidays are different in that one pattern of transmission conditions is set in association with the whole period period, and the transmission conditions are fixed to one. Then, on holidays, only the transmission area 500 corresponding to the driver's seat door 101 is set as the transmission target area, and the transmission cycle is longer than the morning and evening commuting hours on weekdays and other than the morning and evening commuting hours on weekdays. The time is set shorter than the day and night time.

  The transmission condition 3 in FIG. 7 differs from the transmission condition 1 in FIG. 5 only in the weekday transmission condition. More specifically, the transmission conditions set on weekdays are different from each other in that one pattern of transmission conditions is set in association with the whole period period, and the transmission conditions are fixed to one. Then, on weekdays, only the transmission area 500 corresponding to the driver's seat door 101 is set as the transmission target area, and the transmission cycle is longer than the daytime period on holidays and not more than the nighttime period on holidays (in FIG. The same as the period).

  In accordance with the transmission conditions as shown in FIGS. 5 to 7 described above, the door ECU 5 of each seat executes transmission control of polling radio waves in the outside transmission unit 6 corresponding to itself. More specifically, the door ECU 5 of each seat executes transmission control as shown in FIG. 3 to set the transmission conditions of the outside transmission unit 6 corresponding to itself, and executes the processing of FIG. Based on the set transmission condition, the transmission of the polling radio wave is executed in the outside transmission unit 6 corresponding to itself.

  In the transmission control of FIG. 3, the door ECU 5 of each seat first acquires the transmission conditions stored in the storage unit 10a from the main ECU 10 (S1: transmission condition acquisition means). Next, current state specifying information for specifying the current predetermined situation of the vehicle is acquired (S2). More specifically, the detection result (battery remaining amount information) of the battery remaining amount detection unit 11 periodically acquired by the main ECU 10 is acquired by communication (battery remaining amount information acquisition means), and further, the division period is specified. To acquire the segment period specifying information to be used (segment period specifying information acquisition means). In the case of FIGS. 5 to 7, the current time and the current day of the week are acquired as the segment period specifying information from the calendar clock 12 connected to the door ECU 5 or the main ECU 10 of each seat. Then, the door ECU 5 of each seat specifies and sets the transmission condition to be set based on the acquired transmission condition and the current state specifying information. Then, the door ECU 5 of each seat causes the corresponding outside vehicle transmission unit 50 to transmit a polling signal based on the set transmission condition. Note that the process of FIG. 3 is repeatedly executed at a predetermined update cycle. Here, for example, the setting may be updated every hour.

  In the transmission process of FIG. 4, the door ECU 5 of each seat first reads out the current transmission condition set in the process of FIG. 3 (S11), and executes transmission at a transmission timing based on the content of the read transmission condition. To do. Specifically, first, a transmission target area and a transmission cycle are specified from the read transmission conditions (S12), and based on the specified transmission target area, the door ECU 5 of each seat has a transmission area corresponding to itself as a transmission target. It is determined whether it is an area (S12). That is, the door ECU 5 of each seat determines whether or not the outside transmission unit 50 corresponding to the seat transmits a polling signal. When the transmission area corresponding to itself is not the transmission target area (when the outside transmission unit 50 corresponding to itself does not transmit a polling signal) (S13: No), this process is terminated. When the transmission area corresponding to itself is a transmission target area (when the vehicle outside transmission unit 50 corresponding to itself transmits a polling signal) (S13: Yes), the door ECU 5 uses a timer function provided in itself. Then, the time count is started (S14), and a polling signal is transmitted from the outside transmission unit 50 (S16) as the time count for one specified transmission cycle is completed (S15: Yes). Then, when the next update cycle described above or the transmission of the polling signal is not necessary (for example, when the smart key 9 is detected in the vehicle interior by a well-known method) (S17: Yes), this processing is performed. However, unless this is the case (S17: No), after transmitting the polling signal, time counting is started again (S14), and these are repeated. The arrival of the update cycle can also determine the timer function as described above.

  As mentioned above, although one Embodiment of this invention was described, these are only illustrations to the last, and this invention is not limited to these, A various change is possible unless it deviates from the meaning of a claim. is there.

  For example, in the above-described embodiment, the transmission condition for each divided section in the cycle period is set for each remaining amount level of the remaining battery level divided into a plurality of stages. For example, transmission conditions for each section in the cycle period may be set for each season, or transmission conditions for each section in the period may be set for each weather. . Further, the transmission condition may be set only for each divided section within a predetermined cycle period without setting the transmission condition for each divided section within each cycle period for each remaining amount level, every season, and every weather. In short, in the present invention, a predetermined periodic period is divided in advance for each of a plurality of division periods, and individual transmission conditions are set fixedly or changeable for each of these division periods, Optimum transmission conditions can be set for each segment period, and wasteful battery consumption and convenience can be improved at the same time. Note that the predetermined periodic period and its division period may be fixedly determined in advance or may be changeable.

  Hereinafter, transmission conditions different from the transmission conditions 1 to 3 in FIGS. 5 to 7 will be briefly described.

  In the transmission condition 4 of FIG. 11, the cycle period is one day, and has at least a predetermined morning and evening commuting time zone as the segment period. In those commuting hours, the transmission cycle is set shorter than the remaining segment period. In addition, transmission conditions are set for each section in the cycle period for each remaining battery level.

  In the transmission condition 5 of FIG. 12, the cycle period is one day, and the segment period is a predetermined daytime period including at least 4 hours from 11:00 am to 3:00 pm, and at least 11 pm to 3:00 am And a predetermined night time period including the daytime period and not including the daytime period. At least the daytime period is set to have a shorter transmission cycle than the nighttime period. In addition, transmission conditions are set for each section in the cycle period for each remaining battery level.

  In the transmission condition 6 in FIG. 13, the cycle period is one year, and the segment periods are the seasons of spring, summer, autumn, and winter. Furthermore, when this one-year cycle period is set as the first cycle period, a period of one week is defined as a second cycle period in each division period of the first cycle period. Yes. The first division period in the second cycle period is a weekday and a holiday, and the second division period corresponding to the first division period weekday is at least a predetermined morning and evening commuting time zone The commuting time zone is set shorter than the remaining period. On the other hand, the second segment period corresponding to a holiday that is the first segment period is a predetermined daytime period including at least 4 hours from 11 am to 3 pm, and at least 11 pm to 3 am And a night period in which the daytime period is not included, and at least the daytime period is set to have a shorter transmission cycle than the nighttime period. Here, the winter morning commute time zone is set earlier than other seasons. As described above, when the transmission condition for each section in the cycle period is set for each of the first plurality of conditions, the section periods set in each condition do not necessarily have to match.

  Further, in the above embodiment, the main control unit 10 has previously set and stored the periodic period and the divided period and the transmission condition in each divided period in a fixed manner. You may comprise so that the transmission conditions in a division | segmentation period may be changed and set based on the predetermined | prescribed change setting operation input by the user with respect to the predetermined | prescribed operation input part 13 (customization means).

  In this case, for example, when the door lock is unlocked in the vehicle 100, the main control unit 100 determines which door 101 of the door 101 is unlocked and the situation at the time of the unlock as transmission conditions. The storage history information storage program (opening) is stored in and stored in the predetermined storage unit (unlocking history storage unit) 10b as the unlocking history information. (Lock history storage means) can be executed. Further, the main control unit 100 displays statistical information based on the unlocking history information stored / accumulated in the predetermined storage unit 10b when a predetermined change setting operation input by the user to the predetermined operation input unit 13 is performed. The statistical information display program for causing the section (statistical information display means) 14 to display the screen can be executed. In the unlocking history information storage program, which door 101 is unlocked can be detected by obtaining the detection result of the lock state detection unit 54 provided on the door 101 of each seat from the door ECU of each seat. It can be specified, and the status at the time of unlocking corresponds to each of the division periods specified in the transmission condition by acquiring the division period specifying information from the calendar clock 12 when the unlocking is specified. Can be identified. Then, for example, in the form shown in FIG. 8, the specified segment period specifying information is stored and accumulated in the main control unit 100 as unlocking history information in a form associated with the unlocked door. . On the other hand, when displaying the unlocking history information on the screen, the statistical information display program counts the number of times the door 101 is unlocked for each divided period, for example, as shown in FIG. 9 and FIG. Is displayed on the screen of the display unit 14 in the form. Thereby, it can be grasped at a glance at which division period the number of times of unlocking is large, and the transmission period can be set shorter as the number of times of unlocking is larger.

  The predetermined operation input unit 13 can be, for example, a touch panel provided on the display screen of the display unit 14, and displays each count result while displaying the above-described aggregation result on the display screen of the display unit 14. It is also possible to display a setting screen that displays an operation image (such as an icon) capable of setting and operating the transmission condition for the period, and change the transmission condition for each segment period by touch input to the setting screen.

  The main control unit 100 also classifies the door lock with a higher unlocking frequency and a higher unlocking frequency based on the unlocking history information stored and accumulated in the predetermined storage unit (unlocking history storage unit) 10b. The transmission condition automatic update program (transmission condition update unit) that automatically updates the transmission condition so that the transmission frequency by the corresponding transmission unit increases as the period elapses may be configured to be executed at a predetermined period.

  For example, the main control unit 100 is predetermined based on unlocking history information stored and accumulated in a predetermined storage unit (unlocking history storage unit) 10b by executing this transmission condition automatic update program. The number of times of unlocking for each door 101 is totaled for each division period within the period, and the ratio of the total number of times of unlocking to the total number of times of unlocking is calculated.

  If the ratio exceeds a predetermined ratio, the segment period and the door 101 corresponding to the number of times of unlocking that are the basis for calculating the ratio are identified, and the transmission target area in the identified segment period is also identified. The transmission area of the outside transmission unit 50 corresponding to the door 101 is set, and this is set and stored in the predetermined storage unit (transmission condition storage unit) 10a as a transmission condition.

  On the other hand, for example, the main control unit 100 sets the ratio level to 0% to 100% with respect to the ratio of the number of times of unlocking for each door in each of the period periods to the total number of times of unlocking. The transmission cycle determination information in which the transmission cycle corresponding to each ratio level is determined so that the transmission cycle becomes shorter at the ratio level having a higher ratio is previously stored in a predetermined storage unit (transmission cycle determination information storage unit) ) Store in advance in 10c.

  Then, the ratio calculated as described above (the ratio of the total number of times of unlocking for each door in each segment period) to which ratio level in the transmission cycle determination information belongs is specified. Then, while the transmission period determined for the specified ratio level is extracted, the segment period and the door 101 corresponding to the number of times of unlocking that are the basis of the calculation of the ratio calculated at this time are specified. Then, the transmission cycle extracted from the transmission cycle determination information is set as the transmission cycle of the outside transmission unit 50 corresponding to the specified door 101 among the transmission cycles of the specified segment period, and this is set as the transmission condition. Is set and stored in a predetermined storage unit (transmission condition storage unit) 10a.

  Further, the main control unit 100 unlocks itself for each door in each division period based on the unlocking history information stored and accumulated in the predetermined storage unit (unlocking history storage unit) 10b. After that, the possibility of being unlocked next is calculated for each door, and further, the possibility of being unlocked next is calculated for each division period. Furthermore, the transmission conditions for each door in each divided period may be set so that the transmission period becomes shorter as the divided period has a higher possibility.

  For example, when a certain door is unlocked, a parameter reflecting the possibility of the next unlocking is calculated. Specifically, from the unlocking history information stored / accumulated in the predetermined storage unit (unlocking history storage unit) 10b, it unlocks itself after the door unlocked this time for each door of each division period. The calculated number of times of unlocking is totaled, and the ratio of the total number of times of unlocking to the total number of times of unlocking is calculated as a parameter reflecting the possibility of the next unlocking for each door in each division period.

  Then, for each door in each division period, it is determined whether or not the calculated ratio exceeds a predetermined ratio, and if it exceeds, the classification corresponding to the number of times of unlocking from which the ratio is calculated The period and the door 101 are specified, and the transmission area of the outside transmission unit 50 corresponding to the specified door 101 is set as the transmission target area in the specified segment period, and this is set as a transmission condition to a predetermined storage unit (transmission condition (Storage unit) 10a is set and stored.

  On the other hand, the main control unit 100 sets a plurality of ratio levels within a range of 0% to 100% in advance for the ratio calculated as a parameter reflecting the possibility of the next unlocking for each door in each division period. The transmission period determination information that determines the transmission period corresponding to each ratio level is divided into the predetermined storage unit (transmission period determination information storage unit) 10d so that the transmission period becomes shorter at the ratio level that is divided into stages. Store in advance.

  Then, the ratio for each door of each segment period calculated as described above is specified to which ratio level in the transmission cycle determination information, and the transmission determined for the specified ratio level. Each period is extracted. Then, the extracted transmission cycle is set for each door in each segment period, and this is set and stored in the predetermined storage unit (transmission condition storage unit) 10a as a transmission condition.

1 Smart entry system (door lock control system for vehicles)
10 Main ECU (customization means, statistical information display means, unlocking history storage means)
10a Predetermined storage unit (transmission condition storage unit)
10b Predetermined storage unit (unlocking history storage unit)
11 Battery remaining amount detection unit (remaining amount detection means)
13 Operation input part 14 Display part (statistical information display means)
2 verification ECU
3 External storage device 4 Receiver (Receiving means)
5 door ECU (transmission control means, unlocking control means))
50 External transmission unit (transmission means)
51 Outside car unlocking operation part 52 Outside car locking operation part 53 Door lock drive part 54 Lock state detection part 55 Door open / close detection part 500 Key search area (transmission area)
9 Smart Key (wireless portable communication device)
100 vehicles 101 doors

Claims (13)

Transmission means provided corresponding to the door of the vehicle and wirelessly transmitting a polling signal within a predetermined transmission area outside each corresponding door, a transmission condition storage unit for storing the transmission condition of the polling signal, and storage Transmission control means for causing the transmission means to transmit the polling signal based on the transmitted transmission condition, and transmission from the wireless portable communication apparatus after receiving the polling signal by the wireless portable communication apparatus existing in the transmission area. Receiving means for wirelessly receiving the ID code, collating means for executing collation processing for the ID code, and opening of the door lock of the vehicle based on the collation result can be unlocked by a predetermined unlocking operation. A vehicle door lock control system comprising an unlocking control means for switching between an unlocking enabled state and an unlocking prohibited state in which unlocking is disabled,
The transmission condition storage unit divides, as the transmission condition, at least one of a transmission target area to be transmitted among the transmission areas and a transmission cycle, and a predetermined periodic period that is continuously repeated into a plurality of periods. The vehicle door lock control system is characterized in that it is stored separately for each divided period. Comprising a remaining amount detecting means for detecting the remaining amount of battery of the vehicle,
The transmission condition storage unit stores the transmission condition in each cycle period for each remaining battery level of the battery level divided into a plurality of stages,
The transmission control unit causes the transmission unit to transmit the polling signal based on a transmission condition within the periodic period corresponding to the remaining battery level of the remaining battery level detected by the remaining battery level detection unit. The vehicle door lock control system according to claim 1.   The periodic period is one day, and the division period is a predetermined daytime period including at least 11 am to 3 pm and a predetermined nighttime period including at least 11 pm to 3 am The vehicle door lock control system according to claim 1 or 2, wherein the transmission period is set to be shorter in at least the daytime period than in the nighttime period.   The cycle period is one day, and the division period has at least a predetermined morning and evening commuting time zone, and the transmission cycle is set shorter than the remaining division period. The vehicle door lock control system according to any one of claims 1 to 3.   The transmission condition storage unit stores the transmission condition individually for each second division period in which the division period is a first division period and the first division period is divided into a plurality of division periods. Alternatively, the vehicle door lock control system according to claim 2. The cycle period is one week;
The first segment period is a weekday and a holiday,
The second segment period corresponding to the weekday has at least a predetermined morning and evening commuting time zone, and the commuting time zone is set to be shorter than the remaining period,
The second segment period corresponding to the holiday includes a predetermined daytime period including at least 11 am to 3 pm, and a predetermined night period including at least 11 pm to 3 am The vehicle door lock control system according to claim 5, wherein at least the daytime period is set to have the transmission cycle shorter than the nighttime period.   The transmission condition storage unit sets a predetermined transmission area outside the doors of all the vehicle seats as the transmission target area in the daytime period, and the driver's seat of the vehicle as the transmission target area in the nighttime period. The vehicle door lock control system according to claim 3 or 6, wherein a predetermined transmission area outside the door is set.   The vehicle door lock according to claim 4 or 6, wherein the transmission condition storage unit is set with a predetermined transmission area outside a driver's door of the vehicle as the transmission target area in the commuting time zone. Control system.   9. The device according to claim 1, further comprising a customization unit configured to change and set the periodic period and the divided period and the transmission condition in each divided period based on a change setting operation input by a user to a predetermined operation input unit. The vehicle door lock control system according to claim 1. When the door lock was unlocked in the vehicle, the door lock of which door was unlocked and the status at the time of unlocking corresponded to each of the above-mentioned division periods, and were identified Unlocking history storage means for storing / accumulating the contents in the unlocking history storage unit as unlocking history information;
The vehicle door lock control system according to claim 9, further comprising: statistical information display means for displaying, on the screen, statistical information based on the stored unlocking history information when the user performs the change setting operation input. . When the door lock was unlocked in the vehicle, the door lock of which door was unlocked and the status at the time of unlocking corresponded to each of the above-mentioned division periods, and were identified Unlocking history storage means for storing / accumulating the contents in the unlocking history storage unit as unlocking history information;
Based on the unlocked history information stored and stored, the transmission conditions are updated so that the door lock with a higher unlocking frequency and the segment period with a higher unlocking frequency increase the transmission frequency by the corresponding transmitting means. The vehicle door lock control system according to any one of claims 1 to 8, further comprising transmission condition update means. Comprising the requirements of claim 2;
In the transmission condition storage unit, the transmission condition stored individually for each of the division periods is associated with a remaining amount level in which the battery remaining amount of the vehicle exceeds a predetermined threshold remaining amount level. 12. The transmission condition of one pattern is stored in association with the remaining amount level that is stored but not exceeding the threshold remaining amount level over the entire period. The vehicle door lock control system according to any one of the above.   The transmission condition storage unit sets the threshold remaining amount level to a first threshold remaining amount level, and the first threshold remaining amount at the remaining amount level of the battery remaining not exceeding the first threshold remaining amount level. The transmission condition for stopping the transmission of the polling signal is stored in association with the remaining amount level that is lower than the second threshold remaining amount level that is lower than the amount level. The vehicle door lock control system according to claim 12.

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