JP2005096730A - Vehicle display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle display device capable of saving space in the display device and realizing a reduction in the number of parts and cost reduction while displaying both the operation state of the vehicle and the operation state of the immobilizer device.
A common display lamp, a fuel supply device abnormality display circuit for operating the common display lamp in a first mode in response to an abnormality detection signal b of a fuel supply device of an engine mounted on a vehicle, and an ignition. An immobilizer display circuit 61 for operating the common display lamp 20 in the second mode to indicate that the vehicle is an immobilizer mounted vehicle after the switch 33 is turned off.
[Selection] Figure 2

Description

  The present invention relates to an indicator used in a vehicle such as a motorcycle or a small planing boat.

2. Description of the Related Art Conventionally, indicators for vehicles and small planing boats have been provided with various warnings and indicator lamps that indicate the operating state of equipment (see Patent Document 1). For example, a motorcycle indicator equipped with an immobilizer device includes an abnormality display lamp that lights when a device such as a fuel supply device is in an abnormal state, an operation display lamp that indicates an operation state of a headlamp, a transmission, and the like. An immobilizer display lamp that blinks to indicate that the vehicle is an immobilizer-equipped vehicle when parked. For this reason, a dedicated lamp is required for each of the operation display and the immobilizer display, so that the space in the display is pressed and the number of parts and the cost are increased.
JP-A-9-175492 (column 10, paragraph 0037)

  The present invention has been made in view of the above-described conventional problems. By displaying both the operation state of the vehicle and the immobilizer mounted vehicle with one display lamp, the space in the display device is saved. An object of the present invention is to provide a vehicle display device capable of realizing a reduction in the number of parts and a reduction in cost.

  To achieve the above object, a vehicle display device according to the present invention includes a common display lamp, and an operation display circuit that operates the common display lamp in a first mode to indicate an operation state of a vehicle including an engine. And an immobilizer display circuit for operating the common display lamp in the second mode to indicate that the vehicle is an immobilizer-mounted vehicle after the ignition switch is turned off. Here, the “vehicle operating state” includes the operating state of the vehicle body such as running, stopping, and overturning, and the operation of the equipment excluding the immobilizer device such as the fuel supply device, direction indicator, and power source mounted on the vehicle. State, both included. “Operating state” includes an operating state / non-operating state as well as an abnormal state.

  According to the above configuration, since the common display lamp operates and displays the operation state of the vehicle in the first mode and the common display lamp operates and displays in the second mode that the vehicle is an immobilizer-equipped vehicle during parking. Since only one display lamp is required, the space in the display can be saved, and the number of parts and the cost can be reduced.

  In a preferred embodiment of the present invention, there is provided an ignition key registration mode display circuit for operating the common display lamp in the third mode for confirmation when registering the ignition key in the control unit. According to the above configuration, it is possible to confirm that the ignition key is being registered with one common display lamp.

  In a preferred embodiment of the present invention, a power saving circuit is provided that turns off the common display lamp when a voltage of a storage battery that supplies power to the common display lamp drops below a predetermined limit voltage. According to the above configuration, the common display lamp is turned off when the voltage of the storage battery falls below a predetermined limit voltage, and thus it is possible to prevent the battery from going up due to the second mode in which the immobilizer is displayed for a long time.

  In a preferred embodiment of the present invention, when the first mode and the second mode are present, or when there is a third mode, the first to third modes are in different operating states. According to the above configuration, the three states can be clearly distinguished and displayed by one display lamp.

  Since the vehicle display of the present invention displays both the vehicle operating state and the immobilizer mounted vehicle by the common display lamp, the number of display lamps is reduced, so that the space in the display can be saved. In addition, the number of parts and the cost can be reduced.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing an instrument panel 1 that forms an upper part of a vehicle display device according to an embodiment of the present invention. In this embodiment, the present invention is applied to a motorcycle that is an example of a vehicle. It is. The instrument panel 1 is installed in front of a front fork (not shown) that supports the front wheels of the motorcycle. At the center of the instrument panel 1 is an arc-shaped engine rotation that displays an analog number of revolutions. A total (analog display unit) 2 is provided.

  That is, the engine tachometer 2 is arranged so as to cover the surface of the substantially rectangular liquid crystal panel 22 and has a substantially disk-like rotational speed display in which an arc-shaped notch 41 extending at an angle of about 270 ° is engraved. A plate 3 is provided. The notch 41 of the rotation speed display plate 3 exposes a plurality of liquid crystal segments 4 provided on the liquid crystal panel 22 to the outside through the notch 41, thereby constituting the engine tachometer 2. Yes. In the vicinity of the inner peripheral edge of the notch 41 on the rotation speed display plate 3, a number representing the rotation speed is printed in thousands. By causing the liquid crystal segment 4 to emit light from the low rotation speed display area to the display position of the rotation speed during travel, the engine speed during travel is displayed in an analog form in a bar shape. For example, when the rotational speed at the time of traveling is 8000 r / min, the liquid crystal segment 4 within the range of display numbers from 0 to 8 on the rotational speed display plate 3 emits light. The rotational speed display plate 3 is covered with a transparent protective cover (not shown) for dust and waterproofing.

  Inside the engine tachometer (analog display unit) 2 in the instrument panel 1, a single digital display unit 7 that is exposed from a rectangular display window 42 that is notched in the rotation speed display plate 3 is disposed. Yes. The digital display unit 7 is provided with a speedometer 8 in which the traveling speed is digitally displayed by a liquid crystal segment, and is provided with a display area that is elongated to the left and right on the front side (lower side in the figure) with respect to the speedometer 8. On the left side of the display area, there is provided a switching display portion 9 for selectively digitally displaying several types of contents to be described later. Further, a water temperature meter 10 for digitally displaying the temperature of the engine coolant with a liquid crystal segment is provided on the right side in the elongated display area.

  The switching display unit 9 has both functions of a clock that digitally displays the current time and a distance meter that digitally displays the travel distance. The distance meter further integrates the travel distance (TRIP) from the reset point. The display can be switched between the mileage (ODO). When the clock, the travel distance from the reset time point, and the accumulated travel distance are digitally displayed, “CLOCK”, “TRIP”, and “ODO” are lit to clearly indicate the contents of the digital display.

  On the left side of the arc-shaped engine tachometer 2, a display mode switching button 12 and a reset button 13, which are two kinds of switching buttons for switching the display of the switching display section 9, are provided along the outer shape of the engine tachometer 2. Are arranged side by side on a circular arc. On the other hand, on the right side of the engine tachometer 2, a plurality (five in this example) of display lamps (displays) 16 to 20 are provided side by side on an arc along the outer shape of the engine tachometer 2. . Each of the display lamps 16 to 20 displays an operation state, an oil level (amount), and the like of a direction indicator, a headlamp, a transmission, and a fuel supply device which are devices mounted on the motorcycle. Each of the display lamps 16 to 20 is an LED in this embodiment, but various display means such as a light bulb or a liquid crystal can be used.

  Each time the display mode switching button 12 is manually pushed, the display content of the switching display unit 9 is sequentially switched between the current time, the travel distance from the reset point, and the cumulative travel distance. The reset button 13 resets the travel distance calculation means by performing a manual pushing operation.

  As the five indicators, there are provided a direction indicator display lamp 16, a headlamp high beam display lamp 17, a neutral display lamp 18, an oil level display lamp 19, and a common display lamp 20. The common display lamp 20 is a first mode in which an abnormal operation state (a kind of vehicle operation state) of a fuel supply device such as a fuel injection system is continuously lit, and a flashing light indicating that the vehicle is an immobilizer mounted vehicle. In the second mode, when the ignition key is registered, that is, when the identification code of the ignition key is registered is displayed in the second mode and the third mode of the flashing mode having a different period. Thus, since the first to third modes are different operating states, the states of the three devices / devices are clearly distinguished and displayed.

  FIG. 2 is a block diagram showing a schematic configuration of an electric system of the vehicle display. The common display lamp 20 exposed from the instrument panel 1 is supplied with power from a battery 30 as a power source via a current limiting resistor R, and is grounded via a first switch SW1 and a second switch SW2 connected in parallel. A fuel supply device 40 that supplies fuel to an engine (not shown), a fuel supply device abnormality sensor 41 that detects an abnormality in the operation of the fuel supply device 40, and a control unit 50 are connected from the battery 30 via an ignition switch 33. Power is supplied. The immobilizer device 60 and the power saving circuit 70 are supplied with power from the battery 30 without passing through the ignition switch 33, and operate even when the ignition switch 33 is off. A fuel supply device abnormality display circuit 51 in the control unit 50 is a kind of operation display circuit, and controls the first switch SW1, and an ignition key registration mode display circuit 52 and an immobilizer display circuit 61 in the immobilizer device 60 are respectively provided. The power saving circuit 70 controls the operation of the immobilizer display circuit 61 by controlling the second switch SW2.

  The control unit 50 includes a fuel supply device abnormality display circuit 51 and an ignition key registration mode display circuit 52. When the abnormality detection signal b is input from the fuel supply device abnormality sensor 41, the fuel supply device abnormality display circuit 51 A continuous lighting signal c for operating the common display lamp 20 in the first mode (in this case, continuous lighting) is output to the first switch SW1. When registering the ignition key, the ignition key registration mode display circuit 52 outputs a key registration signal p to the second switch SW2, and operates (flashes) the common display lamp 20 in the third mode indicating that key registration is in progress. ) This third mode is different from the second mode in blinking cycle. In this example, the blinking cycle is shorter than that in the second mode.

  The immobilizer device 60 includes an immobilizer display circuit 61, a standby circuit 62, and a stop circuit 63. The standby circuit 62 falls within a preset standby time from when the power-off signal e is input from the ignition switch 33. The necessity of immobilization display is determined, and when necessary, an output start signal g is output to the immobilizer display circuit 61. The immobilizer display circuit 61 outputs the immobilizer lighting signal h to the second switch SW2 to operate the common display lamp 20 in the second mode (in this case, blinking) indicating that the vehicle is an immobilizer mounted vehicle.

  The battery voltage sensor 71 of the power saving circuit 70 monitors the voltage of the battery 30 during the display operation in the second mode, and when the voltage lower than the threshold voltage exceeds a predetermined time, the turn-off signal output circuit 72 To output a voltage drop signal r. The turn-off signal output circuit 72 to which the voltage drop signal r is input outputs the turn-off signal s to the immobilizer display circuit 61. The immobilizer display circuit 61 that has received the turn-off signal s stops the immobilizer turn-on signal h sent to the second switch SW2. As a result, the common display lamp 20 stops operating (extinguishes) and the battery is prevented from running out.

  Next, the operation in the ignition key identification code registration mode will be described with reference to the block diagram of FIG. 2 and the flowchart of FIG. A motorcycle manufacturer or dealer registers a master key or spare key authentication code in the control unit 50 of FIG. When the ignition switch 33 is turned on with the master key (step S1 in FIG. 3), it is determined whether or not key data is registered in the control unit 50 (S2 in FIG. 3). When it is not registered, the key registration signal p is output from the registration mode display circuit 52 to the second switch SW2, the second switch SW2 is turned on / off, and the common display lamp 20 is in the third mode indicating that the key is being registered. Flashes (S3 in FIG. 3). The key registration signal p is also input to the stop circuit 62 of the immobilizer device 60, the output stop signal w is output from the stop circuit 62 to the immobilizer display circuit 61, and the output of the immobilizer lighting signal h is stopped. When the master key registration is completed (S4 in FIG. 3) and the ignition switch 33 is turned off (S5 in FIG. 3), the common display lamp 20 is turned off in S6 in FIG. 3 and the process returns to S1. Subkeys below the first subkey are registered in the same procedure.

  Next, a display operation when an abnormality detection signal b, which is a kind of motorcycle operation state display signal, is input from the engine fuel supply device abnormality sensor 41 during engine start-up and operation is shown in the block diagram of FIG. This will be described with reference to the flowchart of FIG. 3 and the timing chart of FIG. When the ignition switch 33 in FIG. 2 is turned on with the ignition key (S1 in FIG. 3), an on signal (FIG. 4 (a)) indicating that the power supply of the entire motorcycle is on is output. Thus, after step S2 in FIG. 3, it is checked in S7 whether or not the ignition key is a regular key. If it is determined that the ignition key is not a regular key, the process returns to S1, the engine does not operate, When the key is, the engine is operated in S8. When the abnormality detection signal b (FIG. 4B) from the fuel supply device abnormality sensor 41 of FIG. 2 is input at the start and during the operation (S9 of FIG. 3), the abnormality detection signal b is received. The fuel supply device abnormality display circuit 51 outputs a continuous lighting signal c (FIG. 4 (c)) to the first switch SW1 so that the common display lamp 20 is continuously lit in the first mode, and an abnormality of the fuel supply device 40 is displayed. (S10 in FIG. 3, FIG. 4 (d)). Thereafter, when the ignition switch 33 is turned off (S11 in FIG. 3), the transmission of the continuous lighting signal c is stopped, the first switch SW1 is turned off, the light is turned off in S6 in FIG. 3, and the process returns to S1.

  Next, the immobilizer display operation of the immobilizer device 60 will be described with reference to the timing charts of FIGS. When the ignition switch 33 in FIG. 2 is turned off (S12 in FIG. 3), the power-off signal e (FIG. 5E) is output to the standby circuit 63 of the immobilizer device 60. The standby circuit 63 determines whether or not the immobilization display operation is set when the ignition switch 33 is turned off immediately before the ignition switch 33 is turned off during a predetermined standby time from when the power-off signal e is input (S13 in FIG. 3). ) When the immobilizer display operation is set and the immobilizer display is not set this time (S14 in FIG. 3), or when the previous immobilizer display is not set and the current immobilizer display is set (FIG. 3) S15), the standby circuit 63 outputs the output start signal g (FIG. 5G) to the immobilizer display circuit 61 after the standby period has elapsed, and the immobilizer display signal 61 receives the immobilizer lighting signal h (FIG. 5H). Is output. The second switch SW2 is turned on / off by the immobilizer lighting signal h (FIG. 5 (i)), and the common display lamp 20 is blinked in a second mode for displaying that the vehicle is an immobilizer mounted vehicle (FIG. 5 (i), S16 in FIG. On the other hand, when immobility non-display is set in S14 and S15 in FIG. 3, the common display lamp 20 in FIG. 2 is turned off in S6. The immobilizer display / non-display setting is switched by the user simultaneously pressing the display mode switching button 12 and the reset button 13 in FIG. 1 within the waiting time.

  As described above, when the fuel supply device 40 of FIG. 2 is in an abnormal operation state, the common display lamp 20 is lit and displayed in the first mode, and when the immobilizer device 60 is operated, the common display lamp 20 blinks in the second mode. Since the display is turned on, only one common display lamp 20 is required, so that the space in the display can be saved and the number of parts and the cost can be reduced.

  Next, the power saving operation for preventing the battery from running out will be described with reference to the timing charts of FIGS. The battery voltage sensor 71 of the power saving circuit 70 in FIG. 2 monitors the voltage of the battery 30 during the immobilizer blinking display, and as shown in FIG. For example, when it is detected that the voltage has dropped below 1 minute or more, the voltage drop signal r in FIG. 6 (n) is output to the extinguishing signal output circuit 72 in FIG. 2 (S17 in FIG. 3). Upon receiving this voltage drop signal r, the turn-off signal output circuit 72 outputs a turn-off signal s to the immobilizer display circuit 61. The immobilizer display circuit 61 that has received the turn-off signal s stops sending the immobilizer turn-on signal h ((o) in FIG. 6). Thereby, the common display lamp 20 is turned off (S6 in FIG. 3), and the voltage drop of the battery 30 is suppressed.

  In the above embodiment, the common display lamp 20 shown in FIG. 2 is a lamp that displays an abnormality in response to the abnormality detection signal b from the fuel supply apparatus abnormality sensor 41. However, devices such as a direction indicator, a head lamp, and a power source are used. The other display lamps 16 to 19 that display the operation state of FIG. 1 may be common display lamps. In addition, in the case where display lamps indicating a running state, a stopped state, a falling state, and the like, which are vehicle body operating states, are provided, these display lamps may be used as a common display lamp.

  Further, in the above embodiment, the first mode is the continuous lighting and the second and third modes are the flashing modes having different periods. However, the first mode may be the flashing mode having a different period from the second and third modes. The first to third modes may be lit with different colors and luminosities. Further, the present invention can be applied to a vehicle in general including a small planing boat as well as a vehicle such as a motorcycle.

It is a top view which shows the instrument panel in the display for vehicles which concerns on one Embodiment of this invention. It is a block diagram which shows schematic structure of the electric system of the display for vehicles. 6 is a flowchart of an abnormality display operation, an immobilizer display operation, and a power saving operation of a common display lamp. It is a timing diagram of the abnormal display operation of the common display lamp. It is a timing diagram of the immobilizer display operation of the common display lamp. It is a timing diagram of the power saving operation of the common display lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Instrument panel 12 ... Display mode switching button 13 ... Reset button 20 ... Common indicator lamp 30 ... Battery (power supply)
SW1, SW2, SW3 ... First to third switches 33 ... Ignition switch 50 ... Control unit 60 ... Immobilizer device 70 ... Power saving circuit b ... Abnormality detection signal c ... Continuous lighting signal e ... Power off signal g ... Output start signal h ... Immobilizer lighting signal r ... Voltage drop signal s ... Light off signal w ... Output stop signal

Claims (4)

A common indicator lamp,
An operation display circuit for operating the common display lamp in a first mode to indicate an operation state of a vehicle equipped with an engine;
A vehicle display device comprising: an immobilizer display circuit that operates the common display lamp in a second mode to indicate that the vehicle is an immobilizer-mounted vehicle after the ignition switch is turned off.   2. The vehicle display device according to claim 1, further comprising an ignition key registration mode display circuit for operating the common display lamp in a third mode for confirmation when the ignition key is registered in the control unit.   3. The vehicle display device according to claim 1, further comprising a power saving circuit that turns off the common display lamp when a voltage of a storage battery that supplies power to the common display lamp drops below a predetermined limit voltage.   4. The vehicle display device according to claim 1, wherein the first mode and the second mode, or the first mode to the third mode are in different operating states when there is the third mode.

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