JP2010089721A - Power supply control unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To materialize a structure capable of performing proximity communication guidance even to a user who forgets the existence of proximity certification when remote communication certification becomes impossible in a power supply control unit for a vehicle. <P>SOLUTION: This power supply control unit includes an informing means 22 capable of informing the proximity communication guidance. When the certification start switch is operated, the control part 1 transmits the remote certification request signal. When the control part 1 receives the remote response signal from the portable machine 3, it controls an electric power source device 6. When the control part 1 does not receive the remote response signal from the portable machine 3, it transmits the proximity certification request signal, and moreover, the informing means 22 displays the proximity communication guidance. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle power supply control device used in an automobile.

  In recent years, electronic devices mounted on automobiles have been digitized, and electronic devices that replace conventional mechanical devices such as electronic electric steering devices and electric braking devices have become commonplace. Electronic power supply control devices for vehicles have spread in the market.

As prior art document information relating to this application, for example, Patent Document 1 is known.
Japanese Patent No. 3578001

  In such a conventional vehicle power supply control device, when the battery of the portable device 3 is exhausted and the portable device 3 cannot transmit the remote response signal and the remote communication authentication cannot be performed, switching to the proximity communication authentication is performed. However, there is a problem that the user forgets the existence of the proximity communication authentication and the user may not effectively use the proximity communication authentication function.

  Therefore, the present invention provides a power supply control device for a vehicle that realizes a configuration capable of guiding proximity communication even when a user who has forgotten the presence of proximity authentication when remote communication authentication cannot be performed. Objective.

  In order to achieve this object, the present invention provides a control unit that is activated by operating an authentication activation switch and can transmit a remote authentication request signal or a proximity authentication request signal, and a remote response signal as a response to the remote authentication request signal. A portable device capable of transmitting and transmitting a proximity response signal as a response to the proximity authentication request signal, and a notification means capable of performing proximity communication guidance notification, and when operating the authentication activation switch, When the control unit transmits the remote authentication request signal and the control unit receives the remote response signal from the portable device, the control unit controls the power supply device, and the control unit controls the remote device from the portable device. A power supply control device in which the control unit transmits the proximity authentication request signal when the response signal is not received and the notification unit performs proximity communication guidance notification; Those were.

  With this configuration, when the authentication activation switch is operated, the portable device runs out of battery or the like, and even when the control unit does not receive the remote response signal or the proximity response signal, the proximity communication guidance notification is performed. Since the notifying means guides the proximity communication to the user, even the user who forgot the existence of the proximity communication authentication can perform the proximity communication.

(Embodiment 1)
Hereinafter, the power supply control apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the power supply control device according to the present embodiment is activated by the operation of the authentication activation switch 21 and can transmit a remote authentication request signal or a proximity authentication request signal, and a response to the remote authentication request signal. A remote response signal and a portable device 3 capable of transmitting a proximity response signal as a response to the proximity authentication request signal, and a notification means 22 capable of performing proximity communication guidance notification, When the switch 1 is operated, the control unit 1 transmits the remote authentication request signal, and when the control unit 1 receives the remote response signal from the portable device 3, the control unit 1 controls the power supply device 6. When the control unit 1 does not receive the remote response signal from the portable device 3, the control unit 1 transmits the proximity authentication request signal and 22 is that a configuration for performing near field communication inducing notification.

  As a specific power control procedure, first, when the battery of the portable device 3 is not exhausted, when the user gets into the vehicle and presses the authentication activation switch 21, the portable device is transferred from the LF transmitter 13 of the control unit 1. An authentication request signal is transmitted to 3. When the portable device 3 receives this authentication request signal by the LF transmitter / receiver 33, a remote response signal is transmitted from the RF transmitter 32 of the portable device 3 to the RF receiver 12 of the control unit 1 for authentication. At this time, the battery 35 of the portable device 3 is consumed.

  If this operation is repeated and the battery 35 is further depleted and it becomes impossible to transmit a remote response signal from the RF transmitter 32, remote authentication between the portable device 3 and the control unit 1 is not established.

  As a backup operation in this case, the transponder 34 is activated by a method of inducing an electromotive force from the proximity communication unit 23 toward the LF transmission / reception device 33 of the portable device, and a proximity response signal is transmitted from the portable device 3 from the proximity communication unit 23. By transmitting, even if the battery of the portable device 3 is consumed, the vehicle power supply device 6 or the engine ECU 5 and the door lock ECU 4 can be controlled and the vehicle can be operated.

  However, since this operation is a procedure in which a battery can be used normally and is not used for about two years, it is highly likely that the user has forgotten the presence of the proximity communication authentication. Therefore, the backup function described above is effective. There are cases where it is not used.

  Here, in the present invention, if the battery 35 is depleted and the control unit 1 does not receive the remote response signal or the proximity response signal when the authentication activation switch 21 is operated, authentication in proximity communication is performed. So that the user can be alerted by the proximity communication guidance notification.

  Specifically, as shown in FIG. 2, the illumination of the authentication activation switch 21 is turned on or blinked, the portable device 3 is guided to a place where proximity communication with the proximity communication means 23 is possible, and the backup function is effectively used. It is configured.

  In addition, as a structure which performs the proximity | contact communication guidance alerting | reporting by the alerting | reporting means 22, it is good also as a structure performed using a buzzer or an audio | voice.

  Further, by providing a timer function in the proximity communication guidance notification and stopping after a predetermined time, wasteful power consumption on the vehicle side can be suppressed.

  The power supply control device of the present invention has an effect that even a user who has forgotten the presence of proximity communication authentication can perform proximity communication, and is useful in an automotive power supply device.

The block diagram which shows the structure of the power supply control apparatus in Embodiment 1 of this invention. Schematic diagram showing an authentication activation switch according to Embodiment 1 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control part 3 Portable machine 6 Power supply device 21 Authentication starting switch 22 Notification means

Claims (4)

A control unit that is activated by operation of the authentication activation switch and can transmit a remote authentication request signal or a proximity authentication request signal;
A portable device capable of transmitting a remote response signal as a response to the remote authentication request signal and transmitting a proximity response signal as a response to the proximity authentication request signal;
A notification means capable of performing proximity communication guidance notification;
When operating the authentication activation switch,
The control unit transmits the remote authentication request signal,
When the control unit receives the remote response signal from the portable device, the control unit controls the power supply device,
When the control unit does not receive the remote response signal from the portable device, the control unit transmits the proximity authentication request signal,
A power control apparatus in which the notification means performs proximity communication guidance notification. The power supply control device according to claim 1, wherein the proximity communication guidance notification is performed by lighting. The power supply control device according to claim 1, wherein the proximity communication guidance notification is performed using a buzzer or a voice. The power supply control device according to claim 1, wherein the proximity communication guidance notification is stopped after a predetermined time.

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