JPH075995U - Hand-free keyless entry system - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the transmitter from running out of battery. [Structure] A face panel 20 is attached to and detached from an audio device main body 22 attached to the front part of a center console 9, and a transmitter 10 and a rechargeable battery 13 are provided therein. When the face panel 20 is attached to the audio device body 22 when not in use, the rechargeable battery 13 is removed from the on-vehicle battery.
To charge automatically.

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, The feature is that the face panel of the audio device installed in the passenger compartment is removable, and the transmitter and its rechargeable battery are built into this face panel.

[0005]

[Action]

 When the transmitter is not in use, the face panel can be installed on the main body of the audio device installed inside the vehicle, and the audio device can be operated by the face panel, and the rechargeable battery inside the face panel can be removed from the onboard battery via the audio device. It will be charged. When you go out of the car, remove the face panel and carry it. As a result, the transmitter in the face panel automatically transmits the identification signal by the vibration when walking.

[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 is attached to the front portion 9a.

This audio device incorporates appropriate functions such as a radio and a cassette deck, and its face panel 20 is detachably configured to prevent theft, and various switches 21 for operation are provided on its surface. Etc. are appropriately provided. Note that such a detachable face panel is known.

The audio body 22 has a mounting surface 23 for the face panel 20 which faces the recess 9b for accommodating the face panel 20 formed on the front surface, and a part of the mounting surface 23 for the body side connecting terminal 24 and the body side charging terminal 25. Is provided.

FIG. 3 shows the back side of the face panel 20. The back surface 26 forms a mounting surface that overlaps with 23 when the face panel 20 is mounted, and the panel-side connection terminals 27 and the panel-side charging terminals 28 are provided at positions corresponding to the body-side connecting terminals 24 and the body-side charging terminals 25, respectively. ing.

The figure also shows a schematic layout of the transmitter 10, the transmission control unit 11, the vibration sensor 12, and the rechargeable battery 13 incorporated in the face panel 20.

The vibration sensor 11 senses vibration caused by carrying the face panel 20 while walking and sends a detection signal to the transmission control unit 11, and the transmission control unit 11 determines in advance from the transmitter 10 based on this signal. The identification signal is transmitted within a predetermined area.

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 either one of them. 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 to unlock or lock the door in response to the switching of the door lock switch 6. . 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), the presence or absence of the identification signal is first judged (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). If not, return to (S15).

In this state, it 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 face panel 20 is mounted on the mounting surface 23 of the audio device main body 22, and the main body side connection terminal 24 and the panel side connection terminal 27 and the main body side are connected. The charging terminal 25 and the panel-side charging terminal 28 are connected to each other.

As a result, the face panel 20 can be operated as a normal audio device by the various switches 21. At the same time, the rechargeable battery 13 with the face panel 20 built therein has the main body side charging terminal 25 and the panel side charging terminal 28. Is automatically charged from the vehicle battery.

Further, when going to a car company, the face panel 20 is removed, and as shown in FIG. 1, it is put in a carrying case 29 and taken out. At this time, vibration is generated by walking while carrying the face panel 20, and the vibration sensor 13 that senses this vibration sends this detection signal to the transmission control device, so that the transmitter 10 outputs 5 pulses per vibration. Continues to automatically transmit the identification signal of.

However, since the rechargeable battery 13 is fully charged when the face panel 20 is removed, the battery will run out even if the transmitter 10 continues to transmit the identification signal. It becomes difficult and frequent battery replacement becomes unnecessary.

Therefore, when the user gets out of a predetermined area by getting out of the car and carrying away the face panel 20, the receiver 7 does not receive the identification signal, and the door lock is automatically set 5 seconds later. Locked.

On the other hand, when the vehicle comes in from outside the area, the receiver 7 receives the identification signal and immediately unlocks the door lock, enabling keyless entry.

Moreover, since the face panel 20 is always carried when going to a car company for the purpose of theft prevention, and is always attached to the audio main body 22 as an operation panel in the car, the face panel 20 is attached to the transmitter 10 and the charging device. The function of the face panel 20 can be effectively used by incorporating the formula battery 13 or the like.

[0029]

[Effect of device]

 According to the hands-free keyless entry system according to the present invention, the transmitter and the rechargeable battery are incorporated in the face panel. Therefore, the rechargeable battery is automatically installed in the vehicle by mounting the face panel to the audio device main body. It can be charged from the battery, and can be fully charged when the face panel is taken out to the car company, so the battery will not run out easily and frequent battery replacement is unnecessary.

Moreover, since the transmitter, the rechargeable battery and the like are combined with the face panel, the functions of the detachable face panel can be effectively utilized and the handling becomes convenient.

[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 rear view of the face panel according to the present embodiment.

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 , 13: rechargeable battery,
20: Face panel, 22: Audio device main body

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 the hands-free keyless entry system equipped with a hands-free control device that unlocks the door and automatically locks the door lock under predetermined conditions when it is no longer received, the face panel of the audio device mounted in the vehicle compartment can be attached and detached, A hands-free keyless entry system featuring a transmitter and its rechargeable battery built into this face panel.