JP2009052923A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular display device for displaying a speed even if a movement mechanism is not normally operated and the speed can not be correctly displayed by an actual meter. <P>SOLUTION: The vehicular display device D includes: the display 1; the actual meter 2 disposed in front of the display 1; the movement mechanism 4 for moving the actual meter 2 to first and second positions; a control means 10 for controlling the display 1, the actual meter 2 and the movement mechanism 4; and position detecting means 4f, 4g for monitoring an operating state of the movement mechanism 4. The control means 10 determines whether the operating state of the movement mechanism 4 is proper based on information input from the position detecting means 4f, 4g, and causes the display 1 to display the speed 1b if it determines that the operating state is abnormal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a display device for a vehicle including a display device called a flat panel display such as a liquid crystal display device and a substantial meter disposed in front of the display device.

A conventional vehicle display device is disclosed in Patent Document 1. This vehicular display device includes a display and a substantial meter disposed in front of the display. And the moving mechanism which moves the said substantial meter is provided.
German Patent Application Publication No. 10331131

  However, the conventional vehicular display device has a problem that when the moving mechanism cannot perform a normal operation (for example, the moving mechanism stops halfway), the substantial meter cannot perform normal display. It was. In particular, when the actual meter is a speedometer, there is a problem that the speed cannot be displayed correctly.

  Accordingly, the present invention focuses on the above-described problems and provides a vehicle display device capable of displaying speed even when the moving mechanism does not operate normally and the actual meter cannot display the speed correctly. It is intended to do.

  The present invention includes a display, a substantial meter disposed in front of the display, a moving mechanism for moving the substantial meter to a first position and a second position, the display, and the substantial meter. And a display device for a vehicle comprising a control means for controlling the moving mechanism, wherein a position detecting means for monitoring the operating state of the moving mechanism is provided, and the control means is based on input information from the position detecting means. Then, it is determined whether or not the operating state of the moving mechanism is appropriate, and when it is determined that there is an abnormality, the speed is displayed on the display.

  The present invention also provides a display, a substantial meter disposed in front of the display, a moving mechanism for moving the substantial meter to a first position and a second position, and a periphery of the display A display device for a vehicle, comprising: a display device disposed on the display device; and a control means for controlling the display device, the physical meter, the moving mechanism, and the other display device, and monitoring an operating state of the moving mechanism. A position detecting unit configured to determine whether or not the operating state of the moving mechanism is appropriate based on input information from the position detecting unit, and when determining that the other display is abnormal, The speed is displayed on the instrument.

  Further, according to the present invention, the position detecting means includes a first position detecting means for detecting the first position of the moving mechanism, and a second position detecting means for detecting the second position of the moving mechanism. The control means detects an operating state of the moving mechanism based on input information from the first position detecting means and the second position detecting means.

  In the present invention, the control means may display a speed display in a display area of the display unit that is not concealed by the physical meter when it is determined that the moving mechanism has stopped between the first and second positions. Is what you do.

  In addition, the present invention includes notification means for notifying the abnormality of the movement mechanism, and the control means notifies the notification when the operation state of the movement mechanism is determined to be abnormal based on input information from the position detection means. Actuating means.

  According to the present invention, there is provided a display device for a vehicle that can achieve the intended purpose, and can display the speed even when the moving mechanism does not operate normally and the actual meter cannot display the speed correctly. can do.

  Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.

  The vehicle display device D includes four pointer-type meters from the left in FIG. 1, that is, a fuel meter FU, an engine tachometer TA, a speed meter SP, and an engine cooling water temperature meter TE.

  Among these four pointer-type meters, the fuel meter FU and the engine coolant temperature meter TE have a conventionally well-known structure, and thus description thereof is omitted. The features of the present invention will be described using the speedometer SP among the engine tachometer TA and the speedometer SP.

  The vehicle display device D is mainly composed of a display 1, an actual meter 2, a support 3 and a moving mechanism 4. In addition, 5 is a visor, 6 is a front panel, and 21 and 22 are other indicators provided separately from the indicator 1.

  The display device 1 is called a flat panel display, and is a liquid crystal display device in the present embodiment. Since the liquid crystal display element constituting the liquid crystal display does not emit light by itself, the display 1 includes a light source (not shown). The liquid crystal display element of the display 1 is formed in a dot matrix shape, and displays design 1a such as scales and characters indicated by a pointer described later of the physical meter 2, information on the vehicle, and the like. The vehicle information includes a vehicle speed 1b, an engine speed, a vehicle alarm (such as an inter-vehicle distance alarm 1c), a vehicle outside temperature, a navigation map and guidance display, and a vehicle external image. For example, what is shown in FIG. 3 is a vehicle speed 1b and an inter-vehicle distance alarm 1c.

  The substance meter 2 is disposed in front of the display device 1 and is constituted by a pointer 2a and a meter body 2b in this embodiment. The instrument body 2b is covered with a case 2c. A light source 2d that illuminates the pointer 2a is provided in the case 2c. The light source 2d is preferably a light emitting diode and the like. The pointer 2a includes an instruction portion 2a1 and a pointer cap 2a2. The instrument body 2b is a stepping motor or a cross coil type electric motor, and rotates the pointer 2a.

  The support 3 has a flat plate shape made of a colorless and transparent synthetic resin. As shown in FIGS. 1 and 2, the support 3 is positioned in front of the display 1 at the first position and transmits the design 1 a that is a display image of the display 1. The whole 3 constitutes the visible part. Further, as shown in FIG. 2, the support 3 has a substantial meter 2 fixed to the front (left side in FIG. 2). In addition to the substance meter 2, a frame-like portion 7 is provided in front of the support 3. The frame-like portion 7 is made of a light-shielding synthetic resin and has an annular shape. The frame-like portion 7 is formed larger than the rotation locus of the pointer 2 of the actual meter 2 and indicates the display area of the actual meter 2. Reference numeral 7 a denotes a connecting portion that connects the case 2 c of the physical meter 2 and the frame-like portion 7.

  Moreover, the frame-shaped part 7 and the connection part 7a also cover the wiring member which is not illustrated which electrically connects the meter main body 2b and the external circuit which is not illustrated.

  In addition, guide pins 3 a and 3 b are provided above and below both side surfaces of the support 3. The guide pins 3 a and 3 b guide the movement of the support 3.

  The moving mechanism 4 moves the substantial meter 2 by moving the support 3, and moves the substantial meter 2 to the first position shown in FIGS. 1 and 2 and the second position shown in FIGS. It is something to be made. The moving mechanism 4 includes guide rails 4a and 4b for guiding the guide pins 3a and 3b of the support body 3, a motor 4c as a driving source for moving the support body 3, and a connection for connecting the support body 3 and the motor 4c. It is mainly composed of a wire 4d as a member. In the present embodiment, a servo motor is used as the motor 4c. Reference numeral 4e denotes a roller for guiding the wire 4d. Reference numerals 4f and 4g are position detection means for monitoring the operating state of the moving mechanism 4. In this embodiment, the operating state of the moving mechanism 4 is monitored by detecting the position of the support 3. The position detection means 4f and 4g are preferably optical sensors, and the position detection means 4f and 4g are the first position detection means 4f for detecting that the substantial meter 2 is at the first position, and the substantial meter 2 Is composed of second position detecting means 4g for detecting that the position is the second position.

  The guide rail 4a is made of metal and is fixed to the vehicle display device D by appropriate means. The guide rail 4a includes a through hole 4a1 through which the guide pin 3a passes. The guide rail 4 a is provided in a direction substantially perpendicular to the plate surface direction of the display 1.

  The guide rail 4b is made of a synthetic resin, and is integrally formed in turn so as to be made of a synthetic resin provided with a fuel gauge FU and an engine cooling water temperature gauge TE of the vehicle display device D. The guide rail 4b includes a groove 4b1 in which the guide pin 3b moves. The guide rail 4 b is provided in the horizontal direction with respect to the plate surface direction of the display 1.

  The motor 4c includes a roller 4c1 for winding the wire 4d. One end of a wire 4d is fixed to the roller 4c1. When the motor 4c rotates, the wire 4d is wound up and the support 3 is moved.

  The wire 4d is made of metal, one end is fixed to the roller 4c1 of the motor 4c, and the other end is fixed to the guide pin 3a of the support 3.

  With the above configuration, by driving the motor 4c of the moving mechanism 4, the wire 4d is wound up and the support 3 is moved. Before the wire 4d is wound up, the support 3 is parallel to the plate surface direction of the display 1 and the substantial meter 2 is in the first position. After the wire 4d is wound up, the support 3 is attached to the display 1. In a direction perpendicular to the plate surface direction, the substantial meter 2 is in the second position, and the support 3 rotates approximately at a right angle. In this embodiment, the support 3 is moved upward by the moving mechanism 4.

  The visor 5 is made of a synthetic resin, and is provided so as to surround the fuel gauge FU, the engine tachometer TA, the speedometer SP, the engine cooling water temperature gauge TE, and the display 1. The visor 5 is a vehicle display device D. The display range is defined (see FIGS. 1, 3 and 5).

  The visor 5 includes a storage portion 5 a on the upper front side of the display 1. The storage portion 5a is formed of a concave portion and stores the moved actual meter 2 and the support 3. By storing the substance meter 2 in the storage part 5a, the substance meter 2 moves outside the display range. In this embodiment, the entity meter 2 is completely accommodated in the accommodating portion 5a when viewed from the direction perpendicular to the plate surface direction of the display 1, and the entity meter 2 is within the display range of the vehicle display device. The meter 2 becomes completely invisible. Note that, as in the present embodiment, it is not necessary to make the substantial meter 2 completely visible, and a part of the physical meter 2 may be visually recognized within a range that does not affect the display of the display 1.

  The front panel 6 is made of a light-transmitting synthetic resin and is black in this embodiment. The front panel 6 is not limited to black, and may be a dark blue color as long as it is a dark color.

  A vehicle dashboard 8 is provided on the front side of the front panel 6.

  The other displays 21 and 22 are liquid crystal display elements and are arranged around the display 1. The other indicators 21 and 22, unlike the indicator 1, are indicators 21 and 22 each having a Japanese character segment. Normally, the vehicle travel distance, the outside air temperature, and the like are displayed, and a segment of “km / h” is provided so that the vehicle speed can be displayed for emergency use.

  Next, the system configuration of the vehicle display device D will be described.

  The vehicle display device D includes a display 1, an actual meter 2, a moving mechanism 4, first position detection means 4 f, second position detection means 4 g, and control means 10. The control means 10 comprises a microcomputer, and controls the display 1, the actual meter 2, and the moving mechanism 4.

  The vehicle display device D is connected to a vehicle control means 11 that controls an engine or the like provided in the vehicle. The vehicle control means 11 is connected to an ignition switch 12 that detects power on / off and accessory power, a door open / close detection sensor 13, a door lock detection sensor 14, an inter-vehicle distance sensor 15, and a vehicle speed sensor 16.

  The ignition switch 12 detects the states of power off (so-called ignition off), accessory power and power on (so-called ignition on), and sends respective signals to the vehicle control means 11.

  The door opening / closing detection sensor 13 detects whether the door state of the vehicle is open or closed.

  The door lock detection sensor 14 detects whether the door lock state of the vehicle is locked or released.

  The inter-vehicle distance sensor 15 measures the inter-vehicle distance when another vehicle is present in front of the vehicle using a millimeter wave or the like.

  The vehicle speed sensor 16 generates a pulse as the vehicle wheel or the transmission gear rotates.

  In this embodiment, the detection signals of the ignition switch 12, the door open / close detection sensor 13, the door lock detection sensor 14, the inter-vehicle distance sensor 15 and the vehicle speed sensor 16 are all sent to the control means 10 via the vehicle control means 11. However, the control unit 10 may be directly connected.

  Next, operation | movement of the display apparatus D for vehicles of this embodiment is demonstrated.

  As shown in FIGS. 3 and 4, the display device D for the vehicle has a position of the substantial meter 2 as shown in FIGS. 1 and 2, a first position where the substantial meter 2 is located in front of the display 1, and FIGS. The entity meter 2 is movable to the second position stored in the storage unit 5a.

  The vehicle display device D sets the substantial meter 2 to the first position during normal use, and sets the substantial meter 2 to the second position when there is information to be displayed on the display 1. The information to be displayed on the display device 1 is important information, and in the present embodiment, for example, is an inter-vehicle distance warning. This is because when the measured value from the inter-vehicle distance sensor 15 reaches a predetermined value, it is determined that the control means 10 gives a warning, the substance meter 2 is moved from the first position to the second position, and displayed. An inter-vehicle distance warning 1c is displayed on the device 1 to inform that the inter-vehicle distance from the preceding vehicle is short.

  The operating state of the moving mechanism 4 is abnormal, for example, the substance meter 2 stops for some reason while moving from the first position to the second position or from the second position to the first position. When the determination is made, for example, as shown in FIG. 5, when the moving mechanism 4 stops between the first position and the second position, the speed display 1 b is performed on the display 1.

  In the display device 1, the position where the speed display 1 b is performed is the speed display 1 b in the display area of the display 1 that is not hidden by the physical meter 2 so that the physical meter 2 positioned in front of the display 1 does not hinder the display. Is. In this embodiment, since the support 3 is formed of a colorless and transparent synthetic resin, the speed 1b displayed on the display 1 can be visually recognized through the support 3 as well. The speed 1b is displayed at a position that is not concealed even by the support 3 that has been performed. This is because the speed 1b is applied to the end portion of the support 3 to prevent the visibility from being hindered due to light refraction by the support 3 or the like.

  At this time, in order to notify the abnormality of the moving mechanism 4, the display 1 displays a display 1 d for notifying the abnormality. In the present embodiment, the display device 1 also serves as a notification unit. In addition, as a notification means, a buzzer, a speaker, etc. may be provided and abnormality may be notified by a sound. Also, the speaker can notify the abnormality by voice.

  The process of the control means 10 regarding the operation | movement of the above display apparatus D for vehicles is demonstrated using FIG.

  An example in which the control means 10 determines that a warning is to be issued when the measured value from the inter-vehicle distance sensor 15 reaches a predetermined value, and the physical meter 2 is moved from the first position to the second position. I will explain to you.

  In this process, when the control unit 10 determines that the measured value from the inter-vehicle distance sensor 15 is a predetermined value and the inter-vehicle distance is to be performed, the process of FIG. 7 starts.

  In step S <b> 1, the control means 10 drives the motor 4 c of the moving mechanism 4 in order to move the physical meter 2.

  In step S <b> 2, the control unit 10 determines whether or not abnormality has been detected based on a feedback signal from the motor 4 c of the moving mechanism 4. If no abnormality is detected, the process proceeds to step S3. If an abnormality is detected, the process proceeds to step S5.

  In step S3, the control means 10 determines whether the substance meter 2 is in the second position based on the signal from the second position detection means 4g. If it is determined that the actual meter 2 is not at the second position, the process returns to step S2. If it is determined that the actual meter 2 is at the second position, the process proceeds to step S4.

  In step S4, the control means 10 stops the motor 4c and ends the process.

  In step S5, the control means 10 stops the motor 4c.

  In step S6, the control means 10 detects the positions of the substantial meter 2 and the support 3 based on the signal from the motor 4c.

  In step S7, the control means 10 calculates | requires the area | region which is not covered with the substance meter 2 and the support body 3 in the indicator 1 from the position of the substance meter 2 and the support body 3 calculated | required by step S6.

  In step S8, the control means 10 performs a speed display 1b on the area of the display 1 obtained in step S7.

  In step S9, the control means 10 performs a display 1d for notifying the abnormality of the vehicle display device D, and ends the process.

  In the present embodiment, the first and second position detecting means 4f and 4g are provided in order to detect the first position and the second position of the substantial meter 2, but the motor 4c of the moving means 4 is provided. The position of the actual meter 2 may be detected by using a servo motor as a position detection means. With this configuration, the number of parts can be reduced.

  With the configuration described above, it is possible to provide the vehicle display device D that can perform speed display even when the moving mechanism 4 does not operate normally.

  Further, when it is determined that the moving mechanism 4 has stopped in the middle of the operation, the speed display 1b can be optimally displayed by performing the speed display 1d using the display area of the display 1 that is not hidden by the physical meter 2, Easy-to-understand information can be presented to the driver.

  In addition, when the operation of the moving mechanism 4 is abnormal, the notification means is activated, so that the driver can be immediately notified of the abnormality and alerted, and the repair can be arranged.

  Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment differs from the first embodiment in that a stepping motor is used in place of the servo motor used for the motor 4c in the first embodiment, and the control means 10 of the vehicle display device D is different from the first embodiment. This is the point where a counter is provided.

  Hereinafter, the process of the control means 10 regarding operation | movement of the display apparatus D for vehicles of this embodiment is demonstrated.

  Similarly to the first embodiment, when the measured value from the inter-vehicle distance sensor 15 described above becomes a predetermined value, it is determined that the control means 10 issues a warning, and the physical meter 2 is moved from the first position to the second position. An example of moving to a position will be described.

  When the measured value from the inter-vehicle distance sensor 15 becomes a predetermined value and the control means 10 determines that the inter-vehicle distance is to be performed, the process of FIG. 8 starts.

  In step S11, the control means 10 clears the counter.

  In step S <b> 12, the control means 10 drives the motor 4 c of the moving mechanism 4 in order to move the physical meter 2.

  In step S13, the control means 10 starts the counter and starts counting.

  In step S14, the control means 10 determines whether or not the counter has reached a predetermined time. This is to measure the time for the substance meter 2 to move from the first position to the second position. If it is less than the predetermined time, the process proceeds to step S15. If the predetermined time or more has elapsed, the process proceeds to step S17.

  In step S15, the control means 10 determines whether the substance meter 2 is in the second position based on a signal from the second position detection means 4g. If it is determined that the physical meter 2 is not at the second position, the process returns to step S14. If it is determined that the physical meter 2 is at the second position, the process proceeds to step S16.

  In step S16, the control means 10 stops the motor 4c and ends the process.

  In step S <b> 17, the control means 10 considers that the substantial meter 2 has not reached the second position even after a predetermined time has elapsed, and detects an abnormality in the motor 4 c of the moving mechanism 4.

  In step S18, the control means 10 stops the motor 4c.

  In step S19, the control means 10 performs speed display 1b on the display 1.

  In step S20, the control means 10 performs a display 1d for notifying the abnormality of the vehicle display device D, and ends the process.

  With the configuration described above, it is possible to provide the vehicle display device D capable of performing the speed display 1b even when the moving mechanism 4 does not operate normally.

  In addition, when the operation of the moving mechanism 4 is abnormal, the notification means is activated, so that the driver can be immediately notified of the abnormality and alerted, and the repair can be arranged.

  The position detection means of the entity meter 4 can be performed by at least two sensors, and an inexpensive stepping motor can be used for the servo motor, thereby reducing the cost.

  In the embodiment, the speed display 1d is performed on the display 1. However, the speed display 1d is not limited to the embodiment, and the speed display 1d is displayed on the other displays 21 and 22. Also good.

The front view of the normal time of the display apparatus for vehicles of 1st Embodiment of this invention. Sectional drawing of the XX line in FIG. Sectional drawing at the time of accommodation of the display apparatus for vehicles of the embodiment. Sectional drawing of the YY line in FIG. The front view in the middle meter movement of the embodiment. The figure which shows the system configuration | structure of the display apparatus for vehicles of the embodiment. The flowchart figure of the same embodiment. The flowchart figure of 2nd Embodiment of the invention.

Explanation of symbols

1 Display (flat panel display)
DESCRIPTION OF SYMBOLS 1a Design 1b Speed display 1d Alarm display 2 Substantial meter 2a Pointer 2d Light source 3 Support body (translucent panel)
DESCRIPTION OF SYMBOLS 4 Movement mechanism 4f 1st position detection means 4g 2nd position detection means 5 Visor 5a Storage part 6 Front panel 7 Frame-like part 8 Dashboard 10 Control means 11 Vehicle control means 12 Ignition switch 13 Door opening / closing detection sensor 14 Door Lock detection sensor 15 Inter-vehicle distance sensor D Vehicle display device FU Fuel gauge SP Speedometer TA Engine tachometer TE Engine cooling water temperature gauge

Claims (5)

A display, a substantial meter disposed in front of the display, a moving mechanism for moving the substantial meter to a first position and a second position, the display, the substantial meter, and the moving mechanism; A display device for a vehicle including control means for controlling the position of the moving mechanism, wherein position detecting means for monitoring an operating state of the moving mechanism is provided, and the control means is configured based on input information from the position detecting means. It is determined whether or not the operation state of the vehicle is appropriate, and when it is determined that there is an abnormality, a speed display is performed by the display device. A display, a substantial meter disposed in front of the display, a moving mechanism for moving the substantial meter to a first position and a second position, and another display disposed around the display And a display device for a vehicle comprising a control means for controlling the display, the substance meter, the moving mechanism, and the other display, and provided with a position detecting means for monitoring an operating state of the moving mechanism. The control means determines whether or not the operating state of the moving mechanism is appropriate based on the input information from the position detection means, and displays the speed on the other display when it is determined as abnormal. A display device for a vehicle. The position detecting means includes at least first position detecting means for detecting the first position of the moving mechanism, and second position detecting means for detecting the second position of the moving mechanism, 3. The vehicle according to claim 1, wherein the control unit detects an operation state of the moving mechanism based on input information from the first position detection unit and the second position detection unit. Display device. The control means performs speed display in a display area of the display that is not concealed by the physical meter when it is determined that the moving mechanism has stopped between the first and second positions. The vehicle display device according to claim 1. Informing means for notifying the abnormality of the moving mechanism, and the control means operates the notifying means when the operating state of the moving mechanism is determined to be abnormal based on the input information from the position detecting means. The vehicle display device according to claim 1, wherein the display device is a vehicle display device.

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