JP5392115B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a display device for a vehicle, and is suitable for, for example, a vehicle meter provided with a display unit that displays a traveling speed of a vehicle.

  As a display device for a vehicle, a pointer for displaying instructions such as a traveling speed of the vehicle and an engine speed, a movement as a driving source for rotating the pointer, and a control means such as a microcomputer for controlling the movement; And a display device for a vehicle that outputs a display based on various vehicle information that is input after the ignition switch (operation means) is turned on.

  There are also known vehicle display devices that display various types of vehicle information using a liquid crystal panel, an organic EL panel, or the like in addition to the indication display by the pointer.

JP 10-267703 A

  In the vehicle display device described above, when the ignition switch is in the OFF state, the power supply to the vehicle display device is also stopped, and the vehicle traveling speed is not detected or displayed. Therefore, when the vehicle user mistakenly turns off the ignition switch, or when the ignition switch is turned off when the braking operation is insufficient, the vehicle running state such as the traveling speed cannot be confirmed. was there.

  Accordingly, an object of the present invention has been made by paying attention to the above-described problem, and can notify a vehicle user of a vehicle traveling state including a traveling speed even when an ignition switch is in an off state. It is to provide a display device.

  The vehicle display device according to the present invention includes a vehicle speed detection unit that outputs a signal corresponding to a traveling speed of the vehicle, a display unit that displays the traveling speed of the vehicle, and an operation of the vehicle based on an operation of a user of the vehicle. Determination processing is performed based on signals from the operation means for switching between operation / non-operation and the vehicle speed detection means. When the vehicle is not in operation and the vehicle is not stopped, the display means displays a travel speed. And a control means for controlling to activate a notifying means for notifying that the vehicle is not stopped.

  In addition, switch means for switching supply / stop of battery power to the vehicle speed detection means based on a control signal from the control means is provided, and the control means operates the vehicle based on a signal from the operation means. A control signal for urging the battery speed detecting means to be supplied with battery power is output to the switch means for a predetermined time after the transition from the state to the non-operating state.

  Further, the notification means notifies the user of the vehicle by voice.

  The present invention relates to a display device for a vehicle having display means for displaying a traveling speed of a vehicle, and can notify a vehicle user of a traveling state of the vehicle including a traveling speed even when an ignition switch is in an off state. .

The figure which shows the electrical structure of embodiment of this invention. The figure which shows the process sequence by the control means of embodiment same as the above.

  Hereinafter, as an embodiment of a display device for a vehicle according to the present invention, an example applied to an indicating instrument using a pointer mounted on a vehicle will be described with reference to the accompanying drawings.

  FIG. 1 shows an electrical configuration of a pointer instrument according to the present invention, which includes a vehicle speed detection means 1, a display means 2, an operation means 3, a control means 4, and a notification means 5. .

  The vehicle speed detection means 1 operates by supplying power from a battery power source and outputs a signal corresponding to the vehicle wheel rotation to the control means 4. In this case, the vehicle speed detection means 1 is connected to a switch means 11 for switching supply / stop of power from a battery power supply, and supply / stop of power is switched based on a control signal from the control means 4.

  The display means 2 is a movement consisting of a rotating pointer, an indicator portion which is an indication target of the pointer and made up of characters and scales, and a drive source for rotating the pointer based on a control signal from the control means 4 and a motor. And are provided. The vehicle user can read the vehicle information such as the traveling speed of the vehicle by performing comparative reading between the pointer and the indicator. The display means 2 is provided with a display for displaying not only the traveling speed but also other vehicle information such as the engine speed and the fuel remaining amount. Further, not only so-called analog display including a pointer and an indicator, but also a liquid crystal panel provided with an organic EL panel or a backlight may be used to display vehicle information by numerical values or bar display. .

  The operation means 3 can be applied so that the vehicle user can switch the operation / non-operation of the vehicle. In this case, the operation means 3 is applied with an ignition switch, and the vehicle is operated based on the on / off operation of the ignition switch. The power supply to each device is switched. Further, the operation means 3 outputs a signal corresponding to the operation state by the vehicle user to the control means 4.

  The control means 4 can be a microcomputer provided with a CPU, RAM, interface, etc. that are operated by a battery power supply, and inputs vehicle information including signals from the operation means 3 and the traveling speed of the vehicle via a network cable or hard wire. Then, by a predetermined calculation process based on the vehicle information, a control signal for controlling the operation of the display unit 2 and the notification unit 5 is generated and output.

  The notification means 5 can be applied with a warning sound or a speaker for voice guidance based on a control signal from the control means 4, and is configured to notify the vehicle user of the running state. Note that the notification means 5 can also be configured to display the traveling state by using the panel display portion of the display means 2 as well.

  Next, the control process by the control means 4 regarding this invention is demonstrated using FIG. Note that this is a control procedure after the ignition switch shifts from the on state to the off state based on the signal from the operation means 3.

  Based on the signals from the operation means 3 and the vehicle speed detection means 1, the control means 4 determines whether or not the vehicle is in a non-operating state and the vehicle is not stopped (step S1).

  If the determination means satisfies the condition, that is, if it is determined that the vehicle is traveling (wheels are rotating) even though the ignition switch is off, the control means 4 displays the display means. 2 displays a traveling speed (vehicle speed), and outputs a control signal for notifying that the vehicle is not stopped to the notifying means 5 (step S2). In this case, the notification means 5 notifies the vehicle user of the running state by displaying a sound such as “the car is moving”, a sound for prompting a braking operation, and a display. Note that the notification content and volume can be changed according to the running speed of the vehicle and the duration of the running state.

  Further, when the display means 2 is in the stopped state and the vehicle is in the traveling state, the control means 4 is in the off state and the vehicle is stopped (the wheels are stopped). If it is determined that the image is displayed, the display by the display means 2 is stopped (step S3).

  Further, the control means 4 determines whether or not a predetermined time has elapsed since the ignition switch shifted from the on state to the off state (step S4), and performs the above processing (steps S1 to S3) until the predetermined time has elapsed. When a predetermined time has elapsed, the power supply from the battery power source to the vehicle speed detecting means 1 is stopped (step S5), and the vehicle instrument is controlled to shift to the power saving mode (step S6). In addition, the predetermined time mentioned above can be selected according to the determination result of step S1.

  Such a vehicle display device includes a vehicle speed detection unit 1 that outputs a signal corresponding to a travel speed of the vehicle, a display unit 2 that displays the travel speed of the vehicle, and the vehicle based on an operation of a user of the vehicle. Is determined based on signals from the operation means 3 for switching between operation / non-operation and the vehicle speed detection means 1, and when the vehicle is not in operation and the vehicle is not stopped, the display means 2 And a control means 4 for displaying the traveling speed and for controlling the notifying means 5 for notifying that the vehicle is not stopped.

  Therefore, even when the ignition switch is in the OFF state, the vehicle user can be notified of the vehicle driving state including the driving speed. In particular, it is possible to notify that the vehicle has not stopped when the vehicle has not been stopped even though the vehicle has been operated by the vehicle user.

  Further, a switch means 11 for switching supply / stop of the battery power supply to the vehicle speed detection means 1 based on a control signal from the control means 4 is provided. Even if the ignition switch is in an OFF state, a control signal that prompts the battery speed detection means 1 to supply battery power to the vehicle speed detection means 1 is output to the switch means 11 for a predetermined time after shifting from the operation state to the non-operation state. When necessary, information on the traveling speed of the vehicle can be obtained by controlling the vehicle display device.

  The vehicle display device of the present invention has been described by way of example in the configuration of the embodiment described above, but the present invention is not limited to this, and the gist of the present invention is also achieved in other configurations. It goes without saying that various improvements and design changes can be made without departing from the scope. For example, in the above-described embodiment, a display device for a vehicle equipped with an engine has been described as an example. However, the present invention can also be applied to a vehicle using a motor or other power, and in particular, driving sound when the vehicle is stopped. If the vehicle is small, it is difficult for the vehicle user to experience the switching state of the main switch (operation means), so that the configuration in which the running state is notified by voice as described above is effective.

  The present invention can be applied as, for example, a display device for a vehicle mounted on an automobile, a motorcycle, or a moving body including an agricultural machine or a construction machine.

DESCRIPTION OF SYMBOLS 1 Vehicle speed detection means 2 Display means 3 Operation means 4 Control means 5 Notification means

Claims (3)

Vehicle speed detecting means for outputting a signal corresponding to the traveling speed of the vehicle;
Display means for displaying the traveling speed of the vehicle;
Judgment processing is performed based on signals from the operation means for switching operation / non-operation of the vehicle based on the operation of the user of the vehicle and the vehicle speed detection means, and the vehicle is stopped when the vehicle is not in operation. If not, the vehicle includes: a control means for controlling the display means to display a traveling speed and to operate the notifying means for notifying that the vehicle is not stopped. Display device. Switch means for switching supply / stop of battery power to the vehicle speed detection means based on a control signal from the control means;
The control means sends a control signal for urging the battery speed detection means to be supplied with battery power only for a predetermined time after the vehicle shifts from the operating state to the non-operating state based on a signal from the operating means. The vehicle display device according to claim 1, wherein the output is output to the switch means.   The vehicle display device according to claim 1, wherein the notification unit notifies the user of the vehicle by voice.

Images