JPH075994U - Hand-free keyless entry system - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the transmitter from running out of battery. [Structure] A holder 22 for accommodating the transmitter 10 is opened in a face panel 21 of an audio device 20 attached to the front of the center console 9, and the holder 2
A charging unit is provided in the transmitter 2, and a rechargeable battery is provided in the transmitter 10. When the transmitter 10 is housed in the holder portion 22 when not in use, the rechargeable battery of the transmitter 10 is charged from the vehicle-mounted battery via the charging portion in the holder portion 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hands-free keyless entry system that can unlock a vehicle door lock without a key.

[0002]

[Prior art]

 A transmitter that automatically transmits an identification signal due to vibration, a receiver that receives an identification signal due to vibration caused by carrying this transmitter, and a specified condition based on the identification signal received by this receiver. A hands-free keyless entry system equipped with a hands-free control device that automatically unlocks the door lock at that time and automatically locks the door lock under a predetermined condition when it is no longer received has been put to practical use.

[0003]

【Problems to be solved】

 By the way, this transmitter has to be always carried when going out of the vehicle, and automatically transmits an identification signal by vibration, so that the vibration causes the identification signal to be emitted every time it walks. For this reason, the battery built into the transmitter is consumed so much that the battery needs to be replaced frequently. Therefore, the present invention aims to solve such a problem.

[0004]

[Means for solving the problem]

 In order to solve the above problems, a hands-free keyless entry system according to the present invention is a transmitter that automatically transmits an identification signal by vibration, a receiver that receives this identification signal, and a receiver that receives this identification signal. In a hands-free keyless entry system equipped with a hands-free control device that automatically unlocks the door lock under a predetermined condition based on the identification signal and automatically locks the door lock under a predetermined condition when it is not received, In addition to installing a rechargeable battery in the transmitter, a holder for storing the transmitter when not in use is installed in the audio device mounted inside the vehicle, and a charging unit is installed in this holder to install the transmitter. When the battery is stored in the holder part, the charging part charges the rechargeable battery of the transmitter from the on-vehicle battery.

[0005]

[Action]

 When the transmitter is not in use, store it in the holder of the audio device installed inside the vehicle. Then the rechargeable battery inside the transmitter. It is charged from the in-vehicle battery by the charging part provided in the holder part.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a view showing the arrangement of components in the hands-free keyless entry system for the driver's side door 1. An actuator 3 for operating the door lock knob 2, a door lock control device 4 for controlling the actuator 3, and a door. A hands-free control device 5 that outputs an unlocking or locking signal to the lock control device 4, a door lock switch 6 that is switched by the hands-free control device 5, and a hand-free control device that receives an identification signal from a transmitter 10 outside the vehicle. A receiver 7 for outputting to 5 is provided.

The actuator 3 includes a motor, which will be described later, which is operated by the door lock control device 4, and controls the power of a well-known lock mechanism (not shown) by interlocking the door lock knob 2 with a knob switch and a key cylinder switch. Built-in. It is also possible to manually unlock or lock with the key described below.

FIG. 1 shows a front portion of a vehicle compartment, and a front portion 9a of a center console 9 is attached to a central portion of an instrument panel 8 in a state of standing up obliquely so as to face an occupant. An audio device 20 is fitted and attached to an attachment opening (not shown) provided in the front portion 9a.

The audio device 20 incorporates an appropriate function such as a radio and a cassette deck, and a holder part 22 for accommodating the transmitter 10 is opened at a lower part of a face panel 21 thereof.

FIG. 3 is a cross-sectional view of the holder portion 22 with the transmitter 10 accommodated therein, taken along the line AA of FIG. In this figure, the transmitter 10 includes a rechargeable battery 11, a charging terminal 12 connected to the rechargeable battery 11, and a main switch 13 for stopping or starting the operation of the transmitter 10.

Although not shown, the transmitter 10 has a vibration sensor that senses vibration caused by carrying and walking, and a vibration sensor detected by the vibration sensor determines a predetermined area within a predetermined area. A control device and a transmitter for transmitting the identification signal are stored.

On the other hand, a charging section 23 is provided in the holder section 22, and a connection terminal 24 of the charging section 23 comes into contact with the exposed portion 12 of the distal end of the transmitter 10 in the housed state. A charging current is supplied to the connection terminal 24 from the vehicle-mounted battery BT through the main body of the charging unit 23. The charging unit 23 is connected to the vehicle-mounted battery BT via the ignition switch IG.

FIG. 4 is a circuit diagram of the hands-free keyless entry system. The hand-free controller 5 includes a door based on the identification signal of the transmitter 10 via the antenna 30 and the receiver 7 and the opening / closing of the door switch 31. An open / closed state signal, a key insertion state detection signal for detecting whether or not the key 33 is inserted into a key cylinder (not shown) by the key cylinder switch 32, and either the door lock knob 2 is opened or closed by the door knob switch 34. A door lock state detection signal for detecting whether or not is input.

On the other hand, the hands-free control device 5 outputs a lock signal to the lock terminal 35 of the door lock switch 6 and an unlock signal to the unlock terminal 36, and the door lock switch 6 is output to whichever output is present. It is designed to switch.

These terminals 35 and 36 are connected to the door lock control device 4, and the door lock control device 4 operates the motor M in accordance with switching of the door lock switch 6 to perform unlocking or locking. . At this time, the door lock knob 2 also moves in conjunction, and at the same time, the door knob switch 34 also outputs a signal from the hands-free control device 5 to the lock terminal 37 when locked and to the unlock terminal 38 when unlocked. It is switched by

FIG. 5 is a flowchart showing the operation of the transmitter 10. When the main switch 13 is turned on (S.1), the presence or absence of vibration is judged (S.2), and if there is no vibration, the process returns to (S.2). If so, an identification signal is transmitted at a predetermined interval of 5 pulses (S · 3) and the process returns to (S · 2).

FIG. 6 is a flowchart showing the operation in the hands-free control device 5. When the operation is started (S.10), it is first judged whether or not the identification signal is received (S.11), and if not (S.10). If there is, the identification signal is compared with that stored in the built-in memory (S12).

If they do not match, the process returns to (S · 11), and if they match, the door lock state is determined (S · 13). If it is in the locked state, an unlock signal is output to the door lock switch 6 (S14), and if it is in the unlocked state or (S14) is finished, it is determined again whether or not the identification signal is received (S14).・ 15).

If the identification signal is received, the process returns to (S.15). If not, it is determined whether or not the door is closed and the key is removed (S.16), and this state is determined. If not, return to (S15).

In this state, the system waits for 5 seconds (S.15), then outputs a lock signal to the door lock switch 6 and returns to the beginning (S.18).

Next, the operation of this embodiment will be described. In FIG. 1, when the occupant is in the vehicle and does not need to carry the transmitter 10, the transmitter 10 is stored in the holder 22 of the audio device 20. As a result, the built-in rechargeable battery of the transmitter 10 is automatically charged from the vehicle battery.

Therefore, since the battery is always fully charged when it is taken out of the vehicle, it is unlikely that the battery will run out, and frequent battery replacement becomes unnecessary.

Moreover, the holder 22 is provided in the audio device 20 facing the occupant, and because it is easily noticeable, it is possible to prevent forgetting to store the transmitter 10 and to operate it easily.

[0024]

[Effect of device]

 According to the hands-free keyless entry system according to the present invention, when the transmitter is not used, the transmitter is housed in the holder of the audio device and the built-in rechargeable battery of the transmitter is automatically charged from the vehicle battery. .

Therefore, when the vehicle is taken out of the vehicle, it is always in a sufficiently charged state, so that the battery is less likely to run out and frequent battery replacement is unnecessary.

In addition, since the holder is provided in the audio device, it is easy to see, so that it is possible to prevent forgetting to store the transmitter, and it is easy to operate.

[Brief description of drawings]

FIG. 1 is a diagram showing a front portion of a vehicle interior of an automobile to which this embodiment is applied.

FIG. 2 is a diagram showing an arrangement of components on a driver side door of an automobile to which the present embodiment is applied.

FIG. 3 is a cross-sectional view of the holder part in the transmitter accommodated state taken along the line AA of FIG.

FIG. 4 is a circuit diagram of this embodiment.

FIG. 5 is a flowchart showing the operation of the transmitter.

FIG. 6 is a flowchart showing the operation of the hands-free control device.

[Explanation of symbols]

1: Driver side door, 2: Door lock knob, 3: Actuator, 4: Door lock control device, 5: Hand-free control device, 6: Door lock switch, 7: Receiver, 9: Center console, 10: Transmitter , 11: rechargeable battery,
12: charging terminal, 20: audio device :, 21: face panel, 22: holder part, 23: charging part

Claims (1)

[Scope of utility model registration request] 1. A transmitter that automatically transmits an identification signal by vibration, a receiver that receives this identification signal, and a door lock that is automatically provided under a predetermined condition based on the identification signal received by the receiver. In a hands-free keyless entry system equipped with a hands-free control device that unlocks the door and automatically locks the door under predetermined conditions when it is no longer received, the transmitter was equipped with a rechargeable battery and was installed in the vehicle interior. The audio device is provided with a holder for storing the transmitter when not in use, and a charging unit is provided in the holder. When the transmitter is stored in the holder, the charging unit charges the transmitter from the on-board battery to the transmitter. A hands-free keyless entry system characterized by charging the battery.