WO2016063496A1 - スマートエントリーシステム - Google Patents
スマートエントリーシステム Download PDFInfo
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- WO2016063496A1 WO2016063496A1 PCT/JP2015/005183 JP2015005183W WO2016063496A1 WO 2016063496 A1 WO2016063496 A1 WO 2016063496A1 JP 2015005183 W JP2015005183 W JP 2015005183W WO 2016063496 A1 WO2016063496 A1 WO 2016063496A1
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- WIPO (PCT)
- Prior art keywords
- signal
- interrogation signal
- entry system
- output intensity
- smart entry
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
- E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
- E05B49/006—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices
- E05B49/008—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices by alignment of movable perforated parts, e.g. perforated tumblers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
- B60R25/24—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user
- B60R25/245—Means to switch the anti-theft system on or off using electronic identifiers containing a code not memorised by the user where the antenna reception area plays a role
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
- E05B81/78—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles as part of a hands-free locking or unlocking operation
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
- G07C2009/00341—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one limited data transmission ranges
- G07C2009/00357—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one limited data transmission ranges and the lock having more than one limited data transmission ranges
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
- G07C2009/00388—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks code verification carried out according to the challenge/response method
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
- G07C2009/00825—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed remotely by lines or wireless communication
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
- G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
- G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted
Definitions
- This disclosure relates to a smart entry system that releases a key applied to an opening / closing body.
- Patent Document 1 As a conventional smart entry system, for example, the one described in Patent Document 1 is known. That is, the smart entry system disclosed in Patent Document 1 transmits a transmitter that transmits a challenge signal to a smart key by wireless communication, a receiver that receives a response signal from the smart key that responds to the challenge signal, and a transmitter. An ECU for outputting a command for transmitting an interrogation signal, collating the response signal when the receiver receives the response signal, and outputting a command for unlocking the door based on the collation result. Yes.
- the smart key when the interrogation signal from the transmitter is transmitted by the polling method, the smart key receives the interrogation signal when the user approaches a predetermined distance from the vehicle. Then, a response signal is transmitted from the smart key, and this response signal is received by the receiver. After the collation is performed by the ECU, the door is unlocked.
- An object of the present disclosure is to provide a smart entry system that can adjust a reaction distance of a smart key when a polling method is used.
- the receiving unit that receives the response signal from the key and the command for transmitting the interrogation signal to the transmitting unit are output. Further, when the receiving unit receives the response signal, the response signal is verified.
- a control unit that outputs a command for unlocking the opening and closing body.
- the interrogation signal is transmitted by a polling method, and the control unit has an output intensity setting unit that changes and sets the output intensity of the interrogation signal.
- the output intensity setting unit can change the output intensity of the interrogation signal.
- Increasing the output strength of the interrogation signal makes it possible to transmit the interrogation signal further from the transmission unit, so that the portable key can respond to the interrogation signal at a position further away from the transmission unit. become.
- the control unit performs matching in response to the response signal of the portable key and releases the key. In other words, the key can be released even if the portable key is located further away.
- the control unit performs matching in response to the response signal of the portable key and releases the key. That is, when the portable key is closer, the key can be released.
- the setting of the distance between the transmission unit and the portable key that can respond to the interrogation signal can be changed.
- the smart entry system 100 in 1st Embodiment is demonstrated using FIG. 1, FIG.
- the smart entry system 100 according to the first embodiment is a system that enables unlocking (unlocking) of a vehicle door without directly inserting a key into a key cylinder of the vehicle door (opening / closing body).
- the user gets out of the vehicle and touches a predetermined part (for example, a door knob) of the closed vehicle door, so that a trigger signal is generated and the vehicle door is locked. It has become.
- a light function provided on a door mirror, a head ride, indoor lighting, or the like is turned on. Can be given.
- the smart entry system 100 includes a vehicle-side main body 100A and a portable device 100B.
- the vehicle-side main body 100A is provided in the vicinity of the door knob of the vehicle, and includes an LF driver 110, an RF receiving IC 120, an MPU 130, and the like.
- the LF driver 110 is a transmission unit that transmits an interrogation signal to the portable device 100B outside the vehicle by wireless communication using an LF (low frequency) wave as a long wave.
- the interrogation signal is transmitted by a polling method.
- the LF driver 110 includes an amplifier 111 and an LF transmission antenna 112. Note that the polling method does not require an external trigger, and continuously transmits an interrogation signal from the LF driver 110 (at a predetermined transmission interval).
- the amplifier 111 amplifies the LF transmission signal output from the LF transmission signal output unit 131 of the MPU 130 described later to a predetermined (fixed) magnitude, or outputs the LF output intensity output from the output strength setting unit 132 of the MPU 130 described later.
- the amplified LF transmission signal becomes an interrogation signal.
- the LF transmission antenna 112 is an antenna that transmits the interrogation signal amplified by the amplifier 111 to the outside of the vehicle.
- the interrogation signal amplified to a fixed magnitude is a signal that reaches a predetermined distance range outside the vehicle from the LF transmission antenna 112.
- the predetermined distance range is, for example, a distance range of about 70 to 80 cm, and is fixed as an initial value.
- the interrogation signal when amplified to an arbitrary magnitude is a signal that has an increased output intensity and reaches an arbitrary distance range from the LF transmission antenna 112 to the outside of the vehicle.
- the arbitrary distance range is, for example, a distance range farther or closer than a predetermined distance range.
- the RF receiving IC 120 is a receiving unit that receives a response signal by an RF (Radio Frequency) wave as a high frequency transmitted from the portable device 100 ⁇ / b> B via the RF receiving antenna 121.
- the RF reception IC 120 outputs the received response signal as an RF reception signal to the MPU 130 described later.
- the MPU 130 outputs a command for the LF transmission signal to the LF driver 110. Further, when the RF reception IC 120 receives the response signal from the portable device 100B, the MPU 130 collates the response signal (RF reception signal) and displays the collation result. It is a control unit (Micro Processing Unit) that outputs a command for unlocking the vehicle door based on this.
- a control unit Micro Processing Unit
- the MPU 130 has an LF transmission signal output unit 131 and an output intensity setting unit 132.
- the LF transmission signal output unit 131 is an output unit that outputs an LF transmission signal serving as an interrogation signal to the LF driver 110.
- the output intensity setting unit 132 outputs an LF output intensity setting signal for changing and setting the output intensity of a basic LF transmission signal (calling signal) in response to an intensity change request signal from a user described later. It is a setting part.
- the portable device 100B is a portable key carried by the user, and includes an LF reception antenna 140, a transmission / reception IC 150, an RF transmission antenna 160, a lock button 171, an unlock button 172, a trunk button 173, and the like.
- the LF reception antenna 140 is an antenna that receives an interrogation signal transmitted from the LF transmission antenna 112 and outputs it to a transmission / reception IC 150 described later.
- the transmission / reception IC 150 is an IC unit that outputs a response signal required for verification to the RF transmission antenna 160 based on the interrogation signal input from the LF reception antenna 140.
- the transmission / reception IC 150 outputs a request signal corresponding to each input signal to the MPU 130. (Details will be described later).
- the RF transmission antenna 160 is an antenna that transmits a response signal or a request signal from the transmission / reception IC 150 to the RF reception antenna 121.
- the lock button 171 is an input unit that performs an input for locking the vehicle door regardless of an interrogation signal when pressed by the user. Specifically, the lock button 171 generates a door lock request signal for requesting locking (locking) of the vehicle door, and outputs the door lock request signal to the transmission / reception IC 150. The door lock request signal is transmitted from the transmission / reception IC 150 to the MPU 130.
- the unlock button 172 is an input unit that performs an input for unlocking the vehicle door regardless of an interrogation signal when pressed by the user. Specifically, the unlock button 172 generates a door unlock request signal for requesting unlocking (unlocking) of the vehicle door, and outputs the door unlock request signal to the transmission / reception IC 150. The door unlock request signal is transmitted from the transmission / reception IC 150 to the MPU 130.
- the trunk button 173 serves as an input unit that performs an input for unlocking the vehicle trunk regardless of the call signal when pressed by the user. Specifically, the trunk button 173 generates a trunk unlock request signal for requesting unlocking (unlocking) of the vehicle trunk and outputs the trunk unlock request signal to the transmission / reception IC 150. The trunk unlock request signal is transmitted from the transmission / reception IC 150 to the MPU 130.
- Each of the buttons 171 to 173 is basically a button that is selected and pressed according to each request.
- the buttons 171 to 173 in order to change the output intensity of the LF transmission signal (calling signal) when the buttons 171 to 173 are operated in a manner different from the pressing operation originally used. Can be generated and output to the transmission / reception IC 150.
- the strength change request signal is transmitted from the transmission / reception IC 150 to the MPU 130.
- the originally used pressing operation is, for example, a pressing operation that is selected and pressed according to each request, and is also referred to as a predetermined pressing operation.
- the operation different from the originally used pressing operation is, for example, when any two of the three buttons 171 to 173 are pressed at the same time, or any of the three buttons 171 to 173. For example, when two or more are pressed in order.
- an LF transmission signal is output from the LF transmission signal output unit 131, amplified to a fixed size by an amplifier 111, and transmitted as an interrogation signal from the LF transmission antenna 112 to the outside of the vehicle.
- the This interrogation signal is transmitted by a polling method.
- the LF of the portable device 100B is reached.
- the receiving antenna 140 receives the interrogation signal and outputs it to the transmission / reception IC 150.
- the transmission / reception IC 150 outputs a response signal including ID information for verification to the RF transmission antenna 160.
- the response signal is transmitted from the RF transmission antenna 160 to the RF reception antenna 121.
- the RF receiving IC 120 receives a response signal from the RF receiving antenna 121 and outputs the response signal to the MPU 130 as an RF receiving signal.
- the MPU 130 collates the verification information regarding the portable device 100B that the MPU 130 owns with the RF reception signal (response signal).
- the MPU 130 unlocks (unlocks) the vehicle door key.
- the distance that the interrogation signal transmitted from the LF transmission antenna 112 reaches the portable device 100B is basically fixed at a predetermined distance.
- the distance over which the interrogation signal reaches the portable device 100B can be changed and set according to the user's preference or usability.
- the distance that the interrogation signal reaches the portable device 100B corresponds to the distance between the portable device 100B that reacts to the interrogation signal and the LF driver 110.
- the user In changing the distance over which the interrogation signal reaches, the user first stands at a position (for example, a position about 5 m away) away from the vehicle door by a desired distance and touches the buttons 171 to 173 of the portable device 100B.
- the intensity change request signal is output to the transmission / reception IC 150 by the simultaneous pressing or the sequential pressing operation.
- the strength change request signal is received by the RF reception IC 120 from the RF transmission antenna 160 via the RF reception antenna 121, and further reaches the MPU 130.
- the MPU 130 monitors whether there is an intensity change request signal from the portable device 100B in S100 shown in FIG. If the MPU 130 makes an affirmative determination in S100, that is, determines that there is an intensity change request signal, the MPU 130 proceeds to S110, and if a negative determination is made, repeats S100.
- the MPU 130 transmits a test signal.
- the test signal is generated as follows. That is, the MPU 130 outputs the LF output intensity setting signal from the output intensity setting unit 132, and first, the output intensity of the interrogation signal is first set to the output intensity (initial value) of the interrogation signal that reaches a predetermined distance. On the other hand, a signal that increases by a predetermined amount is generated. This is the first test signal. This test signal is an interrogation signal whose output intensity is increased by a predetermined amount. The MPU 130 transmits this test signal from the LF transmission antenna 112 to the portable device 100B.
- the MPU 130 determines whether there is a response signal from the portable device 100B based on the test signal.
- the test signal whose output intensity is increased by a predetermined amount is not an interrogation signal corresponding to the distance desired by the user when it does not reach the portable device 100B (when determining whether or not it is S120). Become.
- S130 it is determined whether or not the transmitted test signal has reached the upper limit of the settable output intensity. If it is determined as NO, the output intensity of the test signal is further increased by a predetermined amount in S140. Update to be larger. And S110 and S120 are implemented similarly to the above.
- the output intensity of the test signal is increased in order, and if the determination is affirmative in S120, if the output intensity of the test signal at that time is the test signal, That is, it can be understood that the interrogation signal can be reached.
- the MPU 130 sets the output strength of the test signal at that time to be the output strength of the new challenge signal in S150. That is, the amplifier 111 changes and sets the degree of amplification for the LF transmission signal. As described above, as the distance over which the interrogation signal reaches is set by repeating S110 to S140, the output intensity of the interrogation signal is set to be larger, and conversely, the distance over which the interrogation signal reaches is set shorter. The greater the output intensity of the interrogation signal, the lower the setting.
- the MPU 130 notifies the user that the setting for changing the distance that the interrogation signal reaches, that is, the setting for changing the output intensity has been completed.
- a notification method for example, a buzzer or the like provided in the engine room of the vehicle is sounded once (for example, it beeps).
- the MPU 130 notifies the user that the change setting of the distance that the interrogation signal reaches is incomplete.
- a notification method a buzzer or the like is sounded a plurality of times (for example, it beeps twice).
- the initial value is used when transmitting the test signal in S110.
- the output intensity is set to the first test signal, and the output intensity is sequentially increased by a predetermined amount.
- the output intensity setting unit 132 can change the output intensity of the interrogation signal.
- the output strength of the interrogation signal is increased, it is possible to transmit the interrogation signal further from the LF driver 110. Therefore, the portable device 100B responds to the interrogation signal even at a position farther from the LF driver 110. become able to. Then, the MPU 130 collates in response to the response signal of the portable device 100B, and unlocks the key. That is, the key can be released even when the portable device 100B is at a farther position.
- the portable device 100B becomes the interrogation signal at a position closer to the LF driver 110. It becomes a form to respond. Then, the MPU 130 collates in response to the response signal of the portable device 100B and releases the key. That is, the key can be released when the portable device 100B is located closer.
- the setting of the distance at which the interrogation signal reaches the portable device 100B can be changed according to the user's preference and usability.
- the output intensity of the interrogation signal is changed and set, when the button 171 to 173 provided on the portable device 100B is used and the pressing operation is performed in a manner different from the originally used pressing operation, Since the intensity change request signal is output, it is not necessary to provide a special input unit, and it is possible to easily cope with it.
- the MPU 130 when setting the change of the output strength of the interrogation signal, the MPU 130 notifies the user of completion when the change setting is completed, and notifies the user of incomplete when the change setting fails. Therefore, it is possible for the user to reliably recognize whether or not the desired distance has been set.
- the distance that the interrogation signal reaches is changed from the initial predetermined distance (about 70 to 80 cm) to a desired distance (for example, about 5 m) to some extent, and the vehicle is combined with a light having a welcome function.
- the user can fully benefit from the welcome response.
- the light is turned on by the welcome response, so that the user can easily recognize the positional relationship with the vehicle.
- the distance that the interrogation signal reaches is short, such as the initial predetermined distance (about 70 to 80 cm)
- a response signal is generated in response to the interrogation signal, and further verification is performed to unlock. Therefore, it takes time to unlock, and there is a possibility that the user may think that the unlocking system has a poor response.
- the distance that the interrogation signal can reach it is possible to open the door immediately because the verification can be completed and unlocked until the user approaches the vehicle. It becomes.
- FIG. 1 A second embodiment is shown in FIG.
- the basic configuration of the smart entry system 100 is the same as that of the first embodiment, in the control performed by the MPU 130, the call based on the polling method is performed according to the output strength of the interrogation signal. The contents for changing the transmission interval of the multiplying signal transmission are added.
- the MPU 130 determines in S180 whether or not the output strength of the changed call signal is greater than a predetermined strength. If an affirmative determination is made in S180, in S190, the MPU 130 (output strength setting unit 132) sets the transmission interval of the interrogation signal based on the polling method to be larger than the transmission interval in the case of the predetermined strength.
- the MPU 130 sets the transmission interval of the interrogation signal based on the polling method to be smaller than the transmission interval in the case of the predetermined strength.
- control unit 130 increases the transmission interval as the output strength of the interrogation signal increases, and conversely decreases the transmission interval as the output strength of the interrogation signal decreases. It has become.
- the interrogation signal based on the polling method continues to be transmitted at a predetermined transmission interval while the vehicle is stopped, that is, while the vehicle is not being used. Therefore, when the output intensity of the interrogation signal is large, the current used in the smart entry system 100 also increases in proportion.
- the use current in this case is a so-called dark current, and the larger the dark current, the greater the decrease in the charge amount of the vehicle battery.
- the generation of dark current can be suppressed by increasing the transmission interval as the output intensity of the interrogation signal increases. Conversely, by reducing the transmission interval as the output intensity of the interrogation signal is smaller, it is possible to continue transmission of the interrogation signal while suppressing an increase in dark current.
Abstract
Description
第1実施形態におけるスマートエントリーシステム100について、図1、図2を用いて説明する。第1実施形態のスマートエントリーシステム100は、車両ドア(開閉体)のキーシリンダーに直接、キーを差し込むことなく、車両ドアの鍵の解除(解錠)を可能とするシステムとなっている。また、本スマートエントリーシステム100においては、ユーザが車両から降りて、閉じられた車両ドアの所定部位(例えば、ドアノブ)を触れることで、トリガ信号が発生されて、車両ドアの施錠が行われるようになっている。
第2実施形態を図3に示す。第2実施形態は、上記第1実施形態に対して、スマートエントリーシステム100の基本構成は同一とするものの、MPU130が実施する制御において、呼掛け信号の出力強度に応じて、ポーリング方式に基づく呼掛け信号送信の送信間隔を変更する内容を追加したものである。
Claims (10)
- 開閉体に掛けられた鍵の解除を行うスマートエントリーシステムであって、
無線通信によって携帯型キー(100B)に対する呼掛け信号を送信する送信部(110)と、
前記呼掛け信号に応答する前記携帯型キー(100B)からの応答信号を受信する受信部(120)と、
前記送信部(110)に対して呼掛け信号送信の指令を出力し、更に、前記受信部(120)が前記応答信号を受信すると前記応答信号の照合を行い、前記照合の結果に基づいて前記開閉体の解錠を行うための指令を出力する制御部(130)とを備え、
前記呼掛け信号は、ポーリング方式によって送信されるようになっており、
前記制御部(130)は、前記呼掛け信号の出力強度を変更設定する出力強度設定部(132)を有するスマートエントリーシステム。 - 前記出力強度設定部(132)は、前記ポーリング方式によって送信される前記呼掛け信号に反応する前記携帯型キー(100B)と前記送信部(110)との距離が長いほど、前記呼掛け信号の出力強度をより大きくする請求項1に記載のスマートエントリーシステム。
- 前記出力強度設定部(132)は、前記ポーリング方式によって送信される前記呼掛け信号に反応する前記携帯型キー(100B)と前記送信部(110)との距離が短いほど、前記呼掛け信号の出力強度をより小さくする請求項1または請求項2に記載のスマートエントリーシステム。
- 前記携帯型キー(100B)は、ユーザの押下操作によって前記開閉体の解錠あるいは施錠のための入力を行う複数の入力部(171、172、173)を有しており、
前記出力強度設定部(132)は、複数の前記入力部(171、172、173)が本来使用される押下操作と異なる要領で押下操作されたときに、前記呼掛け信号の出力強度の変更設定を行う請求項1~請求項3のいずれか1つに記載のスマートエントリーシステム。 - 前記本来使用される押下操作と異なる要領は、複数の前記入力部(171、172、173)が同時に押下される場合である請求項4に記載のスマートエントリーシステム。
- 前記本来使用される押下操作と異なる要領は、複数の前記入力部(171、172、173)が所定の順に押下される場合である請求項4に記載のスマートエントリーシステム。
- 前記制御部(130)は、前記呼掛け信号の出力強度に応じて、前記ポーリング方式に基づく前記呼掛け信号の送信間隔を設定する請求項1~請求項6のいずれか1つに記載のスマートエントリーシステム。
- 前記制御部(130)は、前記呼掛け信号の出力強度が大きいほど、前記送信間隔をより大きくする請求項7に記載のスマートエントリーシステム。
- 前記制御部(130)は、前記呼掛け信号の出力強度が小さいほど、前記送信間隔をより小さくする請求項7または請求項8に記載のスマートエントリーシステム。
- 前記制御部(130)は、前記出力強度設定部(132)による前記呼掛け信号の出力強度の変更設定が完了するとユーザに対して完了の通知を行い、変更設定が失敗するとユーザに対して未完了の通知を行う請求項1~請求項9のいずれか1つに記載のスマートエントリーシステム。
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US15/516,919 US9995061B2 (en) | 2014-10-24 | 2015-10-13 | Smart entry system |
KR1020177010607A KR101922357B1 (ko) | 2014-10-24 | 2015-10-13 | 스마트 엔트리 시스템 |
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JP2014217566A JP6439377B2 (ja) | 2014-10-24 | 2014-10-24 | スマートエントリーシステム |
JP2014-217566 | 2014-10-24 |
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JP (1) | JP6439377B2 (ja) |
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JP6477589B2 (ja) * | 2016-05-06 | 2019-03-06 | 株式会社デンソー | 車両用電子キーシステム |
KR102074502B1 (ko) * | 2018-12-18 | 2020-02-06 | 김연호 | 도난방지를 위한 오토바이 스마트키 시스템 |
WO2022102310A1 (ja) * | 2020-11-10 | 2022-05-19 | 本田技研工業株式会社 | 車載通信システム、鞍乗型車両、およびプログラム |
CN113034752B (zh) * | 2021-05-25 | 2021-08-03 | 德施曼机电(中国)有限公司 | 一种智能锁故障处理方法、装置及计算机可读存储介质 |
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JP2005127050A (ja) | 2003-10-24 | 2005-05-19 | Denso Corp | スマートエントリーシステム |
JP4041477B2 (ja) * | 2004-06-30 | 2008-01-30 | ソニー・エリクソン・モバイルコミュニケーションズ株式会社 | 通信システム、通信端末装置及び無線キー装置 |
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- 2015-10-13 KR KR1020177010607A patent/KR101922357B1/ko active IP Right Grant
- 2015-10-13 WO PCT/JP2015/005183 patent/WO2016063496A1/ja active Application Filing
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JP2000045591A (ja) * | 1998-07-30 | 2000-02-15 | Mazda Motor Corp | キーレスエントリシステム |
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JP2016084610A (ja) | 2016-05-19 |
US9995061B2 (en) | 2018-06-12 |
US20170292291A1 (en) | 2017-10-12 |
KR101922357B1 (ko) | 2018-11-26 |
JP6439377B2 (ja) | 2018-12-19 |
KR20170057387A (ko) | 2017-05-24 |
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