WO2015105020A1 - Display device for use in vehicle - Google Patents

Display device for use in vehicle Download PDF

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Publication number
WO2015105020A1
WO2015105020A1 PCT/JP2014/084470 JP2014084470W WO2015105020A1 WO 2015105020 A1 WO2015105020 A1 WO 2015105020A1 JP 2014084470 W JP2014084470 W JP 2014084470W WO 2015105020 A1 WO2015105020 A1 WO 2015105020A1
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WO
WIPO (PCT)
Prior art keywords
display
yaw moment
quadrant
vehicle
yaw
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Application number
PCT/JP2014/084470
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French (fr)
Japanese (ja)
Inventor
浩平 竹下
晃弘 大谷
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矢崎総業株式会社
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Publication of WO2015105020A1 publication Critical patent/WO2015105020A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Arrangement of adaptations of instruments
    • B60K35/215—
    • B60K35/28—
    • B60K35/60—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/005—Indication of measured value by colour change
    • B60K2360/167—

Definitions

  • the present invention relates to a vehicle display device, and more particularly to a vehicle display device that displays a yaw moment.
  • a display device that is installed in the vicinity of a speedometer, a tachometer, etc., and graphically displays the magnitude of torque currently distributed to each wheel.
  • Patent Document 1 in a four-wheel drive vehicle capable of distributing engine torque to front wheels and rear wheels, the magnitude of torque currently distributed to each wheel is expressed as follows: Techniques for displaying by the number of LED segments that emit light are disclosed.
  • a yaw moment (a force that causes the vehicle tip to swing left and right around the center of gravity of the vehicle) is generated in the vehicle body.
  • a vehicular display device that displays well has not been developed yet.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle display device capable of visually and instantaneously grasping the generation state of the yaw moment of the vehicle.
  • a yaw moment display unit for graphically displaying a yaw moment state generated by a torque difference between left and right wheels of a vehicle.
  • a display control unit that controls the display of the yaw moment display unit according to the generation state of the yaw moment, and the display control unit is in a state where there is no yaw moment.
  • the inside of the yaw moment display portion is in a non-display state, and when the yaw moment in the clockwise direction is generated, the yaw moment display portion is placed in the second quadrant portion and the fourth quadrant portion of the quadrant.
  • the yaw moment display section When at least a part of both areas is lit and a counterclockwise yaw moment is generated, the yaw moment display section is placed in the first quadrant section and the third quadrant section of the quadrant area. It controls to light at least a portion of the two regions, at least one of color and density of each quadrant lit to provide a vehicular display device that controls so as to change according to the magnitude of the yaw moment.
  • the yaw moment display unit may have a circular outer shape.
  • the display control unit when displaying the yaw moment, outlines surrounding the yaw moment display unit, the second quadrant portion and the fourth quadrant portion or the first quadrant portion and the third quadrant portion of the quadrant region The entire area formed by the above may be turned on.
  • the minimum outer shape is sufficient to obtain an equivalent display area, and the display area composed of a TFT liquid crystal panel or the like can be reduced, and the cost can be reduced.
  • a vehicle display device capable of visually and instantaneously grasping the generation state of the yaw moment of the vehicle.
  • FIG. 1 is a functional block diagram showing a functional configuration of a vehicle display device 1 according to the present embodiment.
  • the vehicle display device 1 includes a torque display unit 100 that graphically displays the amount of torque generated in the drive wheels of a vehicle that can change torque distribution, such as a four-wheel drive vehicle, and the left and right sides of the vehicle.
  • the yaw moment display unit 500 that graphically displays the state of the yaw moment generated by the wheel torque difference, the display of the torque display unit 100 is controlled according to the torque change state, and the yaw moment display unit according to the yaw moment generation state
  • the display control unit 5 includes a microcomputer or the like that controls 500 displays.
  • the yaw moment display unit 500 has a circular outer shape part 501. Thereby, coupled with the fact that the vector of the yaw moment is in the circumferential direction, the state of occurrence of the yaw moment of the vehicle can be displayed more easily.
  • the outer shape of the yaw moment display unit 500 is not limited to a circle, and may be various shapes such as an ellipse, a rectangle, and a rectangle.
  • the yaw moment display unit 500 can be constituted by, for example, a TFT liquid crystal display (TFT-LCD) having a backlight.
  • TFT-LCD TFT liquid crystal display
  • a configuration example of the yaw moment display unit 500 using a TFT-LCD will be described later.
  • a specific display mode will also be described later.
  • the yaw moment display unit 500 is not limited to being configured with a TFT liquid crystal display, but may be configured with an LED display, a surface light emitting device, or the like.
  • the display control unit 5 sets the inside 501 of the yaw moment display unit 500 to a non-display state (see FIG. 5A described later).
  • the display control unit 5 includes the second quadrant 501a and the fourth quadrant 501 in the quadrant region 501 obtained by dividing the yaw moment display unit 500 into four equal parts by the X axis and the Y axis.
  • the quadrant 501b is turned on (see FIG. 5C described later).
  • the display control device 5 is in a case where a counterclockwise yaw moment is generated.
  • the first quadrant portion 501d and the third quadrant portion 501c are turned on in the quadrant region 501 obtained by dividing the yaw moment display portion 500 by the X axis and the Y axis (see FIG. 5B described later).
  • the display control unit 5 can control the display color to change according to the strength of the generated yaw moment. For example, when the yaw moment changes so as to gradually increase, the lighting color of the yaw moment display unit 500 can be changed to a highlight color (or warm color) such as red or orange with gradation. .
  • the display control unit 5 may perform control so that the shade of the display color changes in the same color according to the strength of the generated yaw moment. For example, when the yaw moment changes so as to gradually increase, the lighting color of the yaw moment display section 500 can be changed so that it gradually becomes darker.
  • FIG. 5 show a case where all the areas such as the first quadrant 501d and the third quadrant 501c are turned on, but the present invention is not limited to this, and the first quadrant 501d, the third quadrant 501c, etc. Some areas may be lit.
  • the torque display unit 10 includes display segment groups 2A and 2B arranged upward and downward from a predetermined reference unit 101 displayed by printing or LEDs.
  • the display segment groups 2A and 2B each include a plurality of display segments 3a to 3f and 4a to 4f.
  • the display control unit 5 can turn on the display segments 3a to 3f and 4a to 4f at the selected position.
  • the display control unit 5 displays the display segment at the position corresponding to the torque amount in the display segment group 2A arranged upward from the reference unit 101. 3a to 3f are selected and controlled to light up.
  • the display segments 4a to 4f at the positions corresponding to the torque amount in the display segment group 2B arranged downward from the reference portion 101. Select to control to light up.
  • the display segment groups 2A and 2B can be composed of, for example, a TFT liquid crystal display (TFT-LCD) equipped with a backlight.
  • TFT-LCD TFT liquid crystal display
  • a configuration example of the display segment groups 2A and 2B using the TFT-LCD will be described later.
  • a specific display mode will also be described later.
  • the display segment groups 2A and 2B are not limited to being configured with TFT liquid crystal displays, but may be configured with LED displays or surface light emitting devices.
  • the display segments 3a to 3f and 4a to 4f constituting the display segment groups 2A and 2B of the torque display unit 100 are configured so that the display color changes according to the amount of change in torque generated in the drive wheels. May be.
  • the display segments 3a to 3f and 4a to 4f constituting the display segment groups 2A and 2B of the torque display unit 100 are configured so that the shades of display colors change according to the amount of change in torque generated in the drive wheels. It may be configured.
  • the larger the change amount of torque the darker the color and the change amount of torque for the lighting colors of the display segments 3a to 3f or 4a to 4f.
  • the smaller the value the lighter the color can be changed.
  • FIG. 2 is a circuit diagram showing an example of a circuit configuration of the vehicle display device 1 according to the present embodiment.
  • the vehicle display device 1 has a display panel 11, a graphic controller 13, a CPU 15, and various I / O interfaces 17 to 18 connected to the CPU 15, which constitute a part of the meter panel of the vehicle.
  • the display panel 11 includes a yaw moment display unit 500 and display segment groups 2A and 2B shown in FIG. 1, and is formed of a color TFT liquid crystal panel (TFT-LCD) that performs graphic display.
  • TFT-LCD color TFT liquid crystal panel
  • the display panel 11 is driven by an X driver 21 that applies a voltage according to a horizontal synchronizing signal and a Y driver 23 that applies a voltage according to a vertical synchronizing signal.
  • the display panel 11 is provided with a backlight 11a (illumination unit) whose illuminance is adjusted by an applied voltage from the LCD power supply 28.
  • a backlight 11a for example, LED (Light-Emitting-Diode) or EL (Electro-Luminescence) illumination can be used.
  • LED Light-Emitting-Diode
  • EL Electro-Luminescence
  • the graphic controller 13 has a frame memory 13a in which various image data such as the display segments 3a to 3e, 4a to 4e and the RGB data of the yaw moment display unit 500 are stored, and the image data stored in the frame memory 13a is stored in the frame memory 13a.
  • the data is transmitted to the display panel 11. Further, the graphic controller 13 outputs a horizontal synchronization signal to the X driver 21 and outputs a vertical synchronization signal to the Y driver 23.
  • the graphic controller 13 adjusts the LCD transmittance and chromaticity by changing the value of the image data in accordance with an instruction from the CPU 15, and displays the display segments 3a to 3f and 4a displayed on the display panel 11 at the time of lighting at night. -4f and yaw moment display section 500 are adjusted.
  • the LCD transmittance and chromaticity By using the LCD transmittance and chromaticity, the display color and shading of each display segment can be easily adjusted.
  • the EEPROM 15 is externally attached to the CPU 15.
  • the CPU 15 executes a display control program stored in the EEPROM 25, generates image data such as display segments 3a to 3e and 4a to 4e displayed on the display panel 11, and transmits them to the graphic controller 13.
  • the graphic controller 13, the X driver 21, the Y driver 23, and the CPU 15 constitute the display control unit 5.
  • the ignition switch (IGN) 52 connected to the plus (+) of the battery (power source) 51 is connected to the I / O interface 17 and ON / OFF of the ignition switch 52 is input.
  • torque data and the like are input to the I / O interface 18.
  • power is supplied to the CPU 15 from a CPU power source 27 connected to the battery 51.
  • power is supplied to the display panel 11 from the LCD power source 28 connected to the battery 51.
  • the LCD power supply 28 applies a voltage to each electrode of the TFT liquid crystal 11 and also applies a voltage to the backlight 11a.
  • the CPU 15 executes a process for calculating a yaw moment to be displayed on the display panel 11.
  • the yaw rate of the vehicle is detected by a yaw rate sensor (not shown). That is, the speed at which the rotation angle in the turning direction of the vehicle changes is detected. Then, the CPU 15 calculates a yaw moment acting on the vehicle from the detected yaw rate.
  • FIG. 3 is a plan view illustrating a configuration example of an instrument panel 200 that includes the vehicle display device 1 according to the present embodiment and is disposed in front of a driver's seat of a vehicle such as an automobile.
  • the vehicle display device 1 In the instrument panel 200 shown in FIG. 3, the vehicle display device 1 according to the present embodiment is disposed at the center, a circular speedometer (speedometer) 201 is disposed on the left side, and a circular tachometer is disposed on the right side. A (tachometer) 202 is arranged. Further, a turn L display unit 203, a turn R display unit 204, and the like are arranged.
  • the vehicle display device 1 shown in FIG. 3 has a yaw moment display section 500 indicating the state of the yaw moment of the vehicle at the center, and a display segment group 2A indicating the torque distribution state on the left and right of the yaw moment display section 500. (2A1, 2A2), 2B (2B1, 2B2) are arranged.
  • FIG. 3 shows a state in which the second quadrant portion 501a and the fourth quadrant portion 501b are lit in the quadrant region 501 obtained by dividing the yaw moment display portion 500 into four equal parts by the X axis and the Y axis.
  • the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
  • FIG. 4 shows the transition state of the lighting mode of the yaw moment display section 500.
  • the second quadrant of the quadrant region 501 obtained by dividing the yaw moment display unit 500 into four equal parts by the X axis and the Y axis.
  • the part 501a (and the fourth quadrant 501b) is turned on.
  • FIG. 4A shows an example of gradation in which the color gradually changes from left to right.
  • FIG. 4B shows an example of gradation in which the density gradually changes from left to right.
  • FIG. 5 is an explanatory diagram showing a display example of yaw moment and the like in the vehicle display device 1 according to the present embodiment.
  • FIG. 5A is a display example of a yaw moment or the like when the vehicle C is traveling straight in the direction D1, as illustrated on the right side.
  • the torque generated on the left and right wheels on the left and right of the moment display section 500 indicating the state of the moment is the display segment 3b of the display segment group 2A1 on the drive side and the drive side. Is displayed by lighting the display segment 3b of the display segment group 2A2. That is, the torque difference between the left and right wheels when the vehicle C is traveling straight in the direction D1 is “0”, so the display mode is as described above.
  • FIG. 5B shows a display example of a yaw moment or the like when a counterclockwise moment (in the direction of the arrow M1) is generated in the vehicle C, that is, when braking force is applied to the left and right wheels, as shown on the right side. It is.
  • the torque generated on the left and right wheels on the left and right of the moment display section 500 indicating the state of the moment is the display segment 4d of the display segment group 2B1 on the braking side and the braking side. Is displayed by lighting the display segment 4b of the display segment group 2B2. That is, if the vehicle C is turning in the right direction and the braking force of the left wheel is greater than the braking force of the right wheel, the display mode is as described above.
  • the first quadrant portion 501d and the third quadrant portion 501c are turned on in the quadrant region 501 in which the yaw moment display portion 500 is divided into four equal parts by the X axis and the Y axis. Is done.
  • the lighting color of the first quadrant 501d and the third quadrant 501c is changed to a so-called dangerous color such as red or orange with gradation. Also good.
  • the lighting color of the first quadrant 501d and the third quadrant 501c may be changed so as to gradually increase.
  • FIG. 5C shows a display example of a yaw moment or the like when a clockwise moment (in the direction of arrow M2) is generated in the vehicle C, that is, when a driving force is applied to the left and right wheels, as shown on the right side. is there.
  • the torque generated on the left wheel and the right wheel on the left and right of the moment display section 500 indicating the state of the moment is the display segment 3a of the display segment group 2A1 on the driving side and the braking side. Is displayed by lighting the display segment 3b of the display segment group 2A2. That is, if the vehicle C is turning in the right direction and the torque of the left wheel is greater than the torque of the right wheel, the display mode is as described above.
  • the second quadrant portion 501a and the fourth quadrant portion 501b are turned on in the quadrant 501 obtained by dividing the yaw moment display portion 500 into four equal parts by the X axis and the Y axis.
  • the lighting color of the second quadrant 501a and the fourth quadrant 501b may be changed so as to gradually increase.
  • the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
  • FIG. 5 shows a case where all the areas such as the first quadrant 501d and the third quadrant 501c are turned on, but the present invention is not limited to this, and some of the first quadrant 501d, the third quadrant 501c, and the like The area may be lit. Even in this case, the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
  • the yaw moment display unit 500 since the yaw moment display unit 500 has a circular outer portion 501, the generation of the yaw moment of the vehicle is combined with the fact that the yaw moment vector is in the circumferential direction (M1, M2, etc.). The state can be displayed more easily.
  • the outer shape of the yaw moment display unit 500 is not limited to a circle, and may be various shapes such as an ellipse, a rectangle, and a rectangle.
  • step S10 the movement amount of the left and right torque is acquired from a predetermined sensor or the like provided in the vehicle, and the process proceeds to step S11.
  • step S11 it is determined whether or not there is a torque difference between the left and right based on the movement amount of the left and right torque. If “No”, the process returns to step S10, and if “Yes”, the process proceeds to step S12.
  • step S12 the yaw moment is calculated based on a predetermined calculation formula, and the process proceeds to step S13.
  • step S413 the yaw moment display unit 500 displays the calculated yaw moment to end the process.
  • a circular display area is partitioned by a boundary line composed of an X axis and a Y axis, and for example, when a clockwise yaw moment M2 occurs in the vehicle, an upper left area and a lower right area
  • the fan-shaped display portions 601a and 601b displayed on the screen are turned on.
  • the fan-shaped display units displayed in the upper right area and the lower left area are turned on.
  • the strength of the yaw moment M2 and the like is represented by the area of the fan-shaped display portions 601a and 601b.
  • the driver of the vehicle needs to recognize the lighting position and the area in order to grasp the generation state of the yaw moment, and it takes a little time to grasp the generation state of the yaw moment.
  • the yaw moment display unit 500 is divided into four parts by the X axis and the Y axis according to the generation state of the yaw moment.
  • Predetermined quadrants (501a to 501d) of the divided quadrant area 501 are lit, and the lighting color and density change depending on the magnitude of the yaw moment. For this reason, there is an advantage that the driver of the vehicle can instantly grasp the yaw moment generation state.
  • the vehicle display device of the present invention has been described based on the illustrated embodiment, but the present invention is not limited to this, and the configuration of each part is replaced with an arbitrary configuration having the same function. be able to.
  • a part of a predetermined rectangular quadrant (502a to 502d) may be turned on to display the yaw moment generation state.
  • the entire rectangular area of the predetermined rectangular quadrant (503a to 503d) may be turned on to display the yaw moment generation state.
  • a part of the circular area of the predetermined quadrant (504a to 504d) is turned on to display the yaw moment generation state. It may be.

Abstract

This display device for use in a vehicle has a yaw-moment display unit (500) that graphically displays the state of a yaw moment caused by a torque difference between the left and right wheels of the vehicle and a display control unit (5) that controls the display performed by the yaw-moment display unit in accordance with the state of the yaw moment. When there is no yaw moment, the display control unit sets the inside of the yaw-moment display unit to a non-displaying state. Given quarter regions obtained by quartering the yaw-moment display unit along x- and y-axes, when there is a clockwise yaw moment (M2), the display control unit turns on at least parts of the second quadrant (501a) and the fourth quadrant (501b), and when there is a counterclockwise yaw moment (M1), the display control unit turns on at least parts of the first quadrant (501d) and the third quadrant (501c).

Description

車両用表示装置Vehicle display device
　本発明は、車両用表示装置に係り、特に、ヨーモーメントを表示する車両用表示装置に関する。 The present invention relates to a vehicle display device, and more particularly to a vehicle display device that displays a yaw moment.
　従来から、自動車等の車両の運転席の前面に配置される計器盤において、スピードメータやタコメータ等の近傍に設置され、各車輪に現在配分されているトルクの大きさをグラフィック表示する表示装置が知られている。 Conventionally, in an instrument panel arranged in front of a driver's seat of a vehicle such as an automobile, a display device that is installed in the vicinity of a speedometer, a tachometer, etc., and graphically displays the magnitude of torque currently distributed to each wheel. Are known.
　実開昭６３－４２４３５号公報（特許文献１）に示すように、エンジンのトルクを前輪および後輪に配分可能な四輪駆動車両において、各車輪に現在配分されているトルクの大きさを、発光するＬＥＤセグメントの数により表示する技術などが開示されている。 As shown in Japanese Utility Model Publication No. 63-42435 (Patent Document 1), in a four-wheel drive vehicle capable of distributing engine torque to front wheels and rear wheels, the magnitude of torque currently distributed to each wheel is expressed as follows: Techniques for displaying by the number of LED segments that emit light are disclosed.
実開昭６３－４２４３５号公報Japanese Utility Model Publication No. 63-42435
　一方で、車輪にトルク差を生じると車体にはヨーモーメント（車両の重心を中心にその車両の先端を左右に振らせようとする力）が発生するが、このヨーモーメントの発生状態を視認性良く表示する車両用表示装置は未だ開発されていなかった。 On the other hand, when a torque difference occurs between the wheels, a yaw moment (a force that causes the vehicle tip to swing left and right around the center of gravity of the vehicle) is generated in the vehicle body. A vehicular display device that displays well has not been developed yet.
　本発明は、上記課題に鑑みてなされたものであり、車両のヨーモーメントの発生状態を視覚的に瞬時に把握することのできる車両用表示装置を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle display device capable of visually and instantaneously grasping the generation state of the yaw moment of the vehicle.
　上記目的を達成するため、本発明は第１のアスペクトより、車両の左右輪のトルク差により生じるヨーモーメントの状態をグラフィック表示するヨーモーメント表示部であって、Ｘ軸とＹ軸とで四等分した四分領域を有するものと、ヨーモーメントの発生状態に応じて前記ヨーモーメント表示部の表示を制御する表示制御部と、を備え、前記表示制御部は、ヨーモーメントが無い状態の場合には前記ヨーモーメント表示部の内側を無表示の状態とし、時計回りのヨーモーメントが生じている場合には前記ヨーモーメント表示部を前記四分領域のうち第２象限部と第４象限部にて両領域の少なくとも一部を点灯し、反時計回りのヨーモーメントが生じている場合には前記ヨーモーメント表示部を前記四分領域のうち第１象限部と第３象限部にて両領域の少なくとも一部を点灯するように制御すると共に、点灯した各象限の色彩及び濃度の少なくとも一方がヨーモーメントの大きさに応じて変化するように制御する車両用表示装置を提供する。 In order to achieve the above object, according to the first aspect of the present invention, there is provided a yaw moment display unit for graphically displaying a yaw moment state generated by a torque difference between left and right wheels of a vehicle. And a display control unit that controls the display of the yaw moment display unit according to the generation state of the yaw moment, and the display control unit is in a state where there is no yaw moment. The inside of the yaw moment display portion is in a non-display state, and when the yaw moment in the clockwise direction is generated, the yaw moment display portion is placed in the second quadrant portion and the fourth quadrant portion of the quadrant. When at least a part of both areas is lit and a counterclockwise yaw moment is generated, the yaw moment display section is placed in the first quadrant section and the third quadrant section of the quadrant area. It controls to light at least a portion of the two regions, at least one of color and density of each quadrant lit to provide a vehicular display device that controls so as to change according to the magnitude of the yaw moment.
　これにより、車両のヨーモーメントの発生状態を視覚的に瞬時に把握するようにできる。
前記ヨーモーメント表示部は、円形の外形を有するようにしてもよい。 Thereby, it is possible to visually grasp the generation state of the yaw moment of the vehicle instantaneously.
The yaw moment display unit may have a circular outer shape.
　これにより、ヨーモーメントのベクトルが円周方向であることと相俟って、車両のヨーモーメントの発生状態をより一層分り易く表示することができる。
前記表示制御部は、ヨーモーメントを表示する際に、前記ヨーモーメント表示部を囲繞する外形線と、前記四分領域の第２象限部と第４象限部または第１象限部と第３象限部とで形成される全領域を点灯させるようにしてもよい。 Thereby, coupled with the fact that the vector of the yaw moment is in the circumferential direction, the state of occurrence of the yaw moment of the vehicle can be displayed more easily.
The display control unit, when displaying the yaw moment, outlines surrounding the yaw moment display unit, the second quadrant portion and the fourth quadrant portion or the first quadrant portion and the third quadrant portion of the quadrant region The entire area formed by the above may be turned on.
　これにより、同等の表示領域を得るのに最小の外形で済み、ＴＦＴ液晶パネル等で構成される表示領域を小さくすることができ、コストを低廉化することができる。 Thus, the minimum outer shape is sufficient to obtain an equivalent display area, and the display area composed of a TFT liquid crystal panel or the like can be reduced, and the cost can be reduced.
　本発明によれば、車両のヨーモーメントの発生状態を視覚的に瞬時に把握することのできる車両用表示装置を提供することができる。 According to the present invention, it is possible to provide a vehicle display device capable of visually and instantaneously grasping the generation state of the yaw moment of the vehicle.
実施の形態に係る車両用表示装置の機能構成を示す機能ブロック図である。It is a functional block diagram which shows the function structure of the display apparatus for vehicles which concerns on embodiment. 実施の形態に係る車両用表示装置の回路構成の例を示す回路図である。It is a circuit diagram which shows the example of the circuit structure of the display apparatus for vehicles which concerns on embodiment. 本実施の形態に係る車両用表示装置を備える計器盤の構成例を示す平面図である。It is a top view which shows the structural example of an instrument panel provided with the display apparatus for vehicles which concerns on this Embodiment. ヨーモーメントの表示態様の遷移状態を示す図である。It is a figure which shows the transition state of the display mode of a yaw moment. 本実施の形態に係る車両用表示装置におけるヨーモーメント等の表示例を示す説明図である。It is explanatory drawing which shows the example of a display of the yaw moment etc. in the display apparatus for vehicles which concerns on this Embodiment. 実施の形態に係る車両用表示装置で実行される表示制御処理の処理手順を示すフローチャートである。It is a flowchart which shows the process sequence of the display control process performed with the display apparatus for vehicles which concerns on embodiment. 比較例に係るヨーモーメントの表示態様を示す図である。It is a figure which shows the display mode of the yaw moment which concerns on a comparative example. 他の実施例に係るヨーモーメントの表示態様を示す図である。It is a figure which shows the display mode of the yaw moment which concerns on another Example.
　図１～図６を参照して、本発明の実施の形態について説明する。 Embodiments of the present invention will be described with reference to FIGS.
（車両用表示装置の機能構成について）
　図１は、本実施の形態に係る車両用表示装置１の機能構成を示す機能ブロック図である。 (Functional configuration of vehicle display device)
FIG. 1 is a functional block diagram showing a functional configuration of a vehicle display device 1 according to the present embodiment.
　本実施の形態に係る車両用表示装置１は、例えば四輪駆動車などのトルク配分を変更可能な車両の駆動輪に発生しているトルク量をグラフィック表示するトルク表示部１００と、車両の左右輪のトルク差により生じるヨーモーメントの状態をグラフィック表示するヨーモーメント表示部５００と、トルクの変化状態に応じてトルク表示部１００の表示を制御し、ヨーモーメントの発生状態に応じてヨーモーメント表示部５００の表示を制御するマイクロコンピュータ等で構成される表示制御部５を備える。 The vehicle display device 1 according to the present embodiment includes a torque display unit 100 that graphically displays the amount of torque generated in the drive wheels of a vehicle that can change torque distribution, such as a four-wheel drive vehicle, and the left and right sides of the vehicle. The yaw moment display unit 500 that graphically displays the state of the yaw moment generated by the wheel torque difference, the display of the torque display unit 100 is controlled according to the torque change state, and the yaw moment display unit according to the yaw moment generation state The display control unit 5 includes a microcomputer or the like that controls 500 displays.
　なお、本実施の形態において、ヨーモーメント表示部５００は円形の外形部５０１を有する。これにより、ヨーモーメントのベクトルが円周方向であることと相俟って、車両のヨーモーメントの発生状態をより一層分り易く表示することができる。但し、ヨーモーメント表示部５００の外形は円形に限定されず、楕円形、矩形、長方形など種々の形状としてもよい。 In the present embodiment, the yaw moment display unit 500 has a circular outer shape part 501. Thereby, coupled with the fact that the vector of the yaw moment is in the circumferential direction, the state of occurrence of the yaw moment of the vehicle can be displayed more easily. However, the outer shape of the yaw moment display unit 500 is not limited to a circle, and may be various shapes such as an ellipse, a rectangle, and a rectangle.
　ヨーモーメント表示部５００は、例えばバックライトを備えたＴＦＴ方式の液晶表示器（ＴＦＴ－ＬＣＤ）で構成することができる。ＴＦＴ－ＬＣＤを用いたヨーモーメント表示部５００の構成例については後述する。また、具体的な表示態様についても後述する。 The yaw moment display unit 500 can be constituted by, for example, a TFT liquid crystal display (TFT-LCD) having a backlight. A configuration example of the yaw moment display unit 500 using a TFT-LCD will be described later. A specific display mode will also be described later.
　なお、ヨーモーメント表示部５００は、ＴＦＴ方式の液晶表示器で構成する場合に限らず、ＬＥＤ表示器や面発光装置などで構成するようにしてもよい。 Note that the yaw moment display unit 500 is not limited to being configured with a TFT liquid crystal display, but may be configured with an LED display, a surface light emitting device, or the like.
　そして、表示制御部５は、ヨーモーメントが無い状態の場合には、ヨーモーメント表示部５００の内側５０１を無表示の状態（後述の図５（ａ）参照）とする。表示制御部５は、時計回りのヨーモーメントが生じている場合には、ヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第２象限部５０１ａと第４象限部５０１ｂを点灯（後述する図５（ｃ）参照）とする。表示制御装置５は、反時計回りのヨーモーメントが生じている場合には。ヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第１象限部５０１ｄと第３象限部５０１ｃを点灯（後述する図５（ｂ）参照）する。 Then, when there is no yaw moment, the display control unit 5 sets the inside 501 of the yaw moment display unit 500 to a non-display state (see FIG. 5A described later). When the clockwise yaw moment is generated, the display control unit 5 includes the second quadrant 501a and the fourth quadrant 501 in the quadrant region 501 obtained by dividing the yaw moment display unit 500 into four equal parts by the X axis and the Y axis. The quadrant 501b is turned on (see FIG. 5C described later). The display control device 5 is in a case where a counterclockwise yaw moment is generated. The first quadrant portion 501d and the third quadrant portion 501c are turned on in the quadrant region 501 obtained by dividing the yaw moment display portion 500 by the X axis and the Y axis (see FIG. 5B described later).
　なお、表示制御部５は、発生しているヨーモーメントの強さに応じて表示色が変化するように制御するようにできる。例えば、ヨーモーメントが徐々に強くなるように変化する場合には、ヨーモーメント表示部５００の点灯色を赤系統や橙系統等の強調色（あるいは暖色系の色）にグラデーションで変化させるようにできる。 Note that the display control unit 5 can control the display color to change according to the strength of the generated yaw moment. For example, when the yaw moment changes so as to gradually increase, the lighting color of the yaw moment display unit 500 can be changed to a highlight color (or warm color) such as red or orange with gradation. .
　また、表示制御部５は、発生しているヨーモーメントの強さに応じて同一系統の色で、表示色の濃淡が変化するように制御するようにしてもよい。例えば、ヨーモーメントが徐々に強くなるように変化する場合には、ヨーモーメント表示部５００の点灯色が徐々に濃くなるように変化させるようにできる。 Further, the display control unit 5 may perform control so that the shade of the display color changes in the same color according to the strength of the generated yaw moment. For example, when the yaw moment changes so as to gradually increase, the lighting color of the yaw moment display section 500 can be changed so that it gradually becomes darker.
　これにより、視認性を一層向上させ、ヨーモーメントの発生状態を視覚的に瞬時に把握することが可能となる。 This makes it possible to further improve the visibility and to visually grasp the generation state of the yaw moment.
　また、図１および図５では、第１象限部５０１ｄ、第３象限部５０１ｃ等の全領域を点灯させる場合を示すが、これに限らず、第１象限部５０１ｄ、第３象限部５０１ｃ等の一部の領域を点灯するようにしてもよい。 1 and FIG. 5 show a case where all the areas such as the first quadrant 501d and the third quadrant 501c are turned on, but the present invention is not limited to this, and the first quadrant 501d, the third quadrant 501c, etc. Some areas may be lit.
　一方、トルク表示部１０は、印刷あるいはＬＥＤ等によって表示される所定の基準部１０１から上方向および下方向に配置される表示セグメント群２Ａ、２Ｂを備える。表示セグメント群２Ａ、２Ｂは、それぞれ複数の表示セグメント３ａ～３ｆ、４ａ～４ｆを備える。表示制御部５は選択した位置の表示セグメント３ａ～３ｆ、４ａ～４ｆを点灯させることができる。 On the other hand, the torque display unit 10 includes display segment groups 2A and 2B arranged upward and downward from a predetermined reference unit 101 displayed by printing or LEDs. The display segment groups 2A and 2B each include a plurality of display segments 3a to 3f and 4a to 4f. The display control unit 5 can turn on the display segments 3a to 3f and 4a to 4f at the selected position.
　表示制御部５は、駆動輪に発生しているトルクの変化量がプラスの場合には、基準部１０１から上方向に配置された表示セグメント群２Ａのうち、トルク量に対応する位置の表示セグメント３ａ～３ｆを選択して点灯させるように制御する。 When the change amount of the torque generated in the drive wheel is positive, the display control unit 5 displays the display segment at the position corresponding to the torque amount in the display segment group 2A arranged upward from the reference unit 101. 3a to 3f are selected and controlled to light up.
　また、駆動輪に発生しているトルクの変化量がマイナスの場合には、基準部１０１から下方向に配置された前記表示セグメント群２Ｂのうち、トルク量に対応する位置の表示セグメント４ａ～４ｆを選択して点灯させるように制御する。 Further, when the change amount of the torque generated in the drive wheels is negative, the display segments 4a to 4f at the positions corresponding to the torque amount in the display segment group 2B arranged downward from the reference portion 101. Select to control to light up.
　これにより、車輪のトルク状態を視覚的に瞬時に把握することが可能となる。 This makes it possible to visually grasp the torque state of the wheel instantaneously.
　表示セグメント群２Ａ、２Ｂは、例えばバックライトを備えたＴＦＴ方式の液晶表示器（ＴＦＴ－ＬＣＤ）で構成することができる。ＴＦＴ－ＬＣＤを用いた表示セグメント群２Ａ、２Ｂの構成例については後述する。また、具体的な表示態様についても後述する。 The display segment groups 2A and 2B can be composed of, for example, a TFT liquid crystal display (TFT-LCD) equipped with a backlight. A configuration example of the display segment groups 2A and 2B using the TFT-LCD will be described later. A specific display mode will also be described later.
　なお、表示セグメント群２Ａ、２Ｂは、ＴＦＴ方式の液晶表示器で構成する場合に限らず、ＬＥＤ表示器や面発光装置などで構成するようにしてもよい。 The display segment groups 2A and 2B are not limited to being configured with TFT liquid crystal displays, but may be configured with LED displays or surface light emitting devices.
　また、トルク表示部１００の表示セグメント群２Ａ、２Ｂを構成する表示セグメント３ａ～３ｆ、４ａ～４ｆは、駆動輪に発生しているトルクの変化量に応じて表示色が変化するように構成してもよい。 The display segments 3a to 3f and 4a to 4f constituting the display segment groups 2A and 2B of the torque display unit 100 are configured so that the display color changes according to the amount of change in torque generated in the drive wheels. May be.
　また、トルク表示部１００の表示セグメント群２Ａ、２Ｂを構成する表示セグメント３ａ～３ｆ、４ａ～４ｆは、駆動輪に発生しているトルクの変化量に応じて表示色の濃淡が変化するように構成してもよい。 Further, the display segments 3a to 3f and 4a to 4f constituting the display segment groups 2A and 2B of the torque display unit 100 are configured so that the shades of display colors change according to the amount of change in torque generated in the drive wheels. It may be configured.
　例えば、駆動輪に発生しているトルク量の増減（プラスまたはマイナス）に関わりなく、表示セグメント３ａ～３ｆまたは４ａ～４ｆの点灯色について、トルクの変化量が大きいほど濃い色、トルクの変化量が小さいほど薄い色となるように変化させることができる。 For example, regardless of the increase or decrease (plus or minus) of the amount of torque generated in the drive wheels, the larger the change amount of torque, the darker the color and the change amount of torque for the lighting colors of the display segments 3a to 3f or 4a to 4f. The smaller the value, the lighter the color can be changed.
（車両用表示装置の回路構成について）
　図２は、本実施の形態に係る車両用表示装置１の回路構成の例を示す回路図である。 (Circuit configuration of vehicle display device)
FIG. 2 is a circuit diagram showing an example of a circuit configuration of the vehicle display device 1 according to the present embodiment.
　車両用表示装置１は、車両のメータパネルの一部を構成する表示パネル１１、グラフィックコントローラ１３、ＣＰＵ１５およびこのＣＰＵ１５に接続される各種のＩ／Ｏインタフェース１７～１８を有する。 The vehicle display device 1 has a display panel 11, a graphic controller 13, a CPU 15, and various I / O interfaces 17 to 18 connected to the CPU 15, which constitute a part of the meter panel of the vehicle.
　表示パネル１１は、図１に示すヨーモーメント表示部５００および表示セグメント群２Ａ、２Ｂを構成し、グラフィック表示を行うカラーＴＦＴ液晶パネル（ＴＦＴ－ＬＣＤ）で構成される。 The display panel 11 includes a yaw moment display unit 500 and display segment groups 2A and 2B shown in FIG. 1, and is formed of a color TFT liquid crystal panel (TFT-LCD) that performs graphic display.
　この表示パネル１１は、水平同期信号に応じた電圧を印加するＸドライバ２１および垂直同期信号に応じた電圧を印加するＹドライバ２３によって駆動される。 The display panel 11 is driven by an X driver 21 that applies a voltage according to a horizontal synchronizing signal and a Y driver 23 that applies a voltage according to a vertical synchronizing signal.
　また、表示パネル１１には、ＬＣＤ電源２８からの印加電圧によって照度が調節されるバックライト１１ａ（照明部）が設けられている。バックライト１１ａには、例えば、ＬＥＤ（Light Emitting Diode）、またはＥＬ（Electro Luminescence）照明を用いることができる。このバックライト１１ａの照度を調節することで、表示パネル１１に表示される画像（表示セグメント３ａ～３ｅ、４ａ～４ｅ、ヨーモーメント表示部５００）の輝度が変更される。 Further, the display panel 11 is provided with a backlight 11a (illumination unit) whose illuminance is adjusted by an applied voltage from the LCD power supply 28. As the backlight 11a, for example, LED (Light-Emitting-Diode) or EL (Electro-Luminescence) illumination can be used. By adjusting the illuminance of the backlight 11a, the luminance of the images (display segments 3a to 3e, 4a to 4e, yaw moment display unit 500) displayed on the display panel 11 is changed.
　グラフィックコントローラ１３は、表示セグメント３ａ～３ｅ、４ａ～４ｅやヨーモーメント表示部５００のＲＧＢデータなど各種の画像データが格納されるフレームメモリ１３ａを有し、このフレームメモリ１３ａに格納された画像データを表示パネル１１に伝送する。また、グラフィックコントローラ１３は、Ｘドライバ２１に水平同期信号を出力し、Ｙドライバ２３に垂直同期信号を出力する。 The graphic controller 13 has a frame memory 13a in which various image data such as the display segments 3a to 3e, 4a to 4e and the RGB data of the yaw moment display unit 500 are stored, and the image data stored in the frame memory 13a is stored in the frame memory 13a. The data is transmitted to the display panel 11. Further, the graphic controller 13 outputs a horizontal synchronization signal to the X driver 21 and outputs a vertical synchronization signal to the Y driver 23.
　また、グラフィックコントローラ１３は、ＣＰＵ１５からの指示に従って、画像データの値を変更することによりＬＣＤ透過率や色度を調節し、夜間点灯時、表示パネル１１に表示される表示セグメント３ａ～３ｆ、４ａ～４ｆやヨーモーメント表示部５００の表示を調整する。ＬＣＤ透過率や色度を用いることで各表示セグメントの表示色や濃淡の調整が容易となる。 Further, the graphic controller 13 adjusts the LCD transmittance and chromaticity by changing the value of the image data in accordance with an instruction from the CPU 15, and displays the display segments 3a to 3f and 4a displayed on the display panel 11 at the time of lighting at night. -4f and yaw moment display section 500 are adjusted. By using the LCD transmittance and chromaticity, the display color and shading of each display segment can be easily adjusted.
　ＣＰＵ１５には、ＥＥＰＲＯＭ２５が外付けされている。ＣＰＵ１５は、ＥＥＰＲＯＭ２５に格納された表示制御プログラムを実行し、表示パネル１１に表示される表示セグメント３ａ～３ｅ、４ａ～４ｅ等の画像データを生成し、グラフィックコントローラ１３に伝送する。グラフィックコントローラ１３、Ｘドライバ２１、Ｙドライバ２３及びＣＰＵ１５は、表示制御部５を構成する。 The EEPROM 15 is externally attached to the CPU 15. The CPU 15 executes a display control program stored in the EEPROM 25, generates image data such as display segments 3a to 3e and 4a to 4e displayed on the display panel 11, and transmits them to the graphic controller 13. The graphic controller 13, the X driver 21, the Y driver 23, and the CPU 15 constitute the display control unit 5.
　Ｉ／Ｏインタフェース１７には、バッテリ（電源）５１のプラス（＋）に接続されたイグニッションスイッチ（ＩＧＮ）５２が接続され、イグニッションスイッチ５２のＯＮ／ＯＦＦが入力される。 The ignition switch (IGN) 52 connected to the plus (+) of the battery (power source) 51 is connected to the I / O interface 17 and ON / OFF of the ignition switch 52 is input.
　また、Ｉ／Ｏインタフェース１８には、トルクデータ等が入力される。 Also, torque data and the like are input to the I / O interface 18.
　また、ＣＰＵ１５には、バッテリ５１に接続されたＣＰＵ電源２７から電力が供給される。同様に、表示パネル１１には、バッテリ５１に接続されたＬＣＤ電源２８から電力が供給される。ＬＣＤ電源２８は、ＴＦＴ液晶１１の各電極に電圧を印加するとともに、バックライト１１ａに電圧を印加する。 Further, power is supplied to the CPU 15 from a CPU power source 27 connected to the battery 51. Similarly, power is supplied to the display panel 11 from the LCD power source 28 connected to the battery 51. The LCD power supply 28 applies a voltage to each electrode of the TFT liquid crystal 11 and also applies a voltage to the backlight 11a.
　また、ＣＰＵ１５は、表示パネル１１に表示させるヨーモーメントを算出する処理を実行する。 Further, the CPU 15 executes a process for calculating a yaw moment to be displayed on the display panel 11.
　例えば、図示しないヨーレートセンサ等によって、車両のヨーレートを検出する。即ち、車両の旋回方向の回転角が変化する速度が検出される。そして、ＣＰＵ１５は、検出されたヨーレートから車両に働くヨーモーメントを算出する。 For example, the yaw rate of the vehicle is detected by a yaw rate sensor (not shown). That is, the speed at which the rotation angle in the turning direction of the vehicle changes is detected. Then, the CPU 15 calculates a yaw moment acting on the vehicle from the detected yaw rate.
　具体的なヨーモーメントの算出は、既存の種々の算出方法を適用して行うことができる（例えば、特開２０１０－２４７５６３号公報、特開２０１１－７３５３４号公報等に詳しい）。 Specific calculation of the yaw moment can be performed by applying various existing calculation methods (for example, detailed in JP 2010-247563 A, JP 2011-73534 A, etc.).
（計器盤の構成例）
　図３は、本実施の形態に係る車両用表示装置１を備え、自動車等の車両の運転席の前面に配置される計器盤２００の構成例を示す平面図である。 (Example of instrument panel configuration)
FIG. 3 is a plan view illustrating a configuration example of an instrument panel 200 that includes the vehicle display device 1 according to the present embodiment and is disposed in front of a driver's seat of a vehicle such as an automobile.
　図３に示す計器盤２００においては、中央部に本実施の形態に係る車両用表示装置１が配置され、その左側に円形の速度計（スピードメータ）２０１が配置され、右側に円形の回転計（タコメータ）２０２が配置されている。また、ターンＬ表示部２０３、ターンＲ表示部２０４等が配置されている。 In the instrument panel 200 shown in FIG. 3, the vehicle display device 1 according to the present embodiment is disposed at the center, a circular speedometer (speedometer) 201 is disposed on the left side, and a circular tachometer is disposed on the right side. A (tachometer) 202 is arranged. Further, a turn L display unit 203, a turn R display unit 204, and the like are arranged.
　図３に示す車両用表示装置１は、中央部に車両のヨーモーメントの状態を示すヨーモーメント表示部５００が配置され、このヨーモーメント表示部５００の左右にトルクの配分状態を示す表示セグメント群２Ａ（２Ａ１、２Ａ２）、２Ｂ（２Ｂ１、２Ｂ２）が配置されている。 The vehicle display device 1 shown in FIG. 3 has a yaw moment display section 500 indicating the state of the yaw moment of the vehicle at the center, and a display segment group 2A indicating the torque distribution state on the left and right of the yaw moment display section 500. (2A1, 2A2), 2B (2B1, 2B2) are arranged.
　図３に示す例では、左側の上方の表示セグメント群２Ａ１の表示セグメント３ａと、右側の上方の表示セグメント群２Ａ２の表示セグメント３ｂとが点灯される。また、図３はヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第２象限部５０１ａと第４象限部５０１ｂが点灯されている状態を示している。この場合、ヨーモーメントの大きさに応じて各象限部の点灯領域の面積は変化しない。 In the example shown in FIG. 3, the display segment 3a of the upper left display segment group 2A1 and the display segment 3b of the upper right display segment group 2A2 are lit. FIG. 3 shows a state in which the second quadrant portion 501a and the fourth quadrant portion 501b are lit in the quadrant region 501 obtained by dividing the yaw moment display portion 500 into four equal parts by the X axis and the Y axis. In this case, the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
　ここで、図４を参照して、ヨーモーメント表示部５００の点灯態様（点灯パターン）について説明する。 Here, a lighting mode (lighting pattern) of the yaw moment display unit 500 will be described with reference to FIG.
　図４は、ヨーモーメント表示部５００の点灯態様の遷移状態を示す。 FIG. 4 shows the transition state of the lighting mode of the yaw moment display section 500.
　図４に示す例では、図１、図３等における表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１の第２象限部５０１ａの点灯態様について説明する。 In the example shown in FIG. 4, a lighting mode of the second quadrant 501a of the quadrant 501 obtained by dividing the display unit 500 in FIG. 1, FIG.
　図１に示す表示制御部５の制御により、時計回りのヨーモーメントが生じている場合にはヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第２象限部５０１ａ（および第４象限部５０１ｂ）が点灯される。 When a clockwise yaw moment is generated by the control of the display control unit 5 shown in FIG. 1, the second quadrant of the quadrant region 501 obtained by dividing the yaw moment display unit 500 into four equal parts by the X axis and the Y axis. The part 501a (and the fourth quadrant 501b) is turned on.
　そして、ヨーモーメントが徐々に強くなるように変化する場合には、図４（ａ）に示すように、第２象限部５０１ａの点灯色を赤系統や橙系統等の強調色（あるいは暖色系の色）にグラデーションで変化させる。図４（ａ）は、左から右へ徐々に色彩が変化するグラデーションの例を示す。 When the yaw moment changes so as to gradually increase, as shown in FIG. 4A, the lighting color of the second quadrant 501a is set to an emphasized color such as red or orange (or warm color). Color). FIG. 4A shows an example of gradation in which the color gradually changes from left to right.
　また、図４（ｂ）に示すように、第２象限部５０１ａの点灯色が徐々に濃くなるように変化させるようにできる。図４（ｂ）は、左から右へ徐々に濃度が変化するグラデーションの例を示す。 Further, as shown in FIG. 4B, the lighting color of the second quadrant 501a can be changed so as to gradually become darker. FIG. 4B shows an example of gradation in which the density gradually changes from left to right.
　なお、他の象限部（第１象限部５０１ｄ、第３象限部５０１ｃ、第４象限部５０１ｂ）の点灯態様についても第２象限部５０１ａと同様である。この場合、ヨーモーメントの大きさに応じて各象限部の点灯領域の面積は変化しない。 In addition, about the lighting mode of other quadrant parts (1st quadrant part 501d, 3rd quadrant part 501c, 4th quadrant part 501b), it is the same as that of the 2nd quadrant part 501a. In this case, the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
　これにより、視認性を一層向上させ、ヨーモーメントの発生状態を視覚的に瞬時に把握することが可能となる。 This makes it possible to further improve the visibility and to visually grasp the generation state of the yaw moment.
（ヨーモーメント等の表示例）
　図５は、本実施の形態に係る車両用表示装置１におけるヨーモーメント等の表示例を示す説明図である。 (Example of yaw moment display)
FIG. 5 is an explanatory diagram showing a display example of yaw moment and the like in the vehicle display device 1 according to the present embodiment.
　図５（ａ）は、右側に図示するように、車両ＣがＤ１方向に直線走行している場合のヨーモーメント等の表示例である。 FIG. 5A is a display example of a yaw moment or the like when the vehicle C is traveling straight in the direction D1, as illustrated on the right side.
　図５（ａ）に示す表示例では、モーメントの状態を示すモーメント表示部５００の左右に、左車輪および右車輪に発生するトルクが、駆動側の表示セグメント群２Ａ１の表示セグメント３ｂと、駆動側の表示セグメント群２Ａ２の表示セグメント３ｂとの点灯によって表示されている。即ち、車両Ｃが駆動されるＤ１方向に直線走行している場合の左右車輪のトルク差は「０」となるので、上述のような表示態様となる。 In the display example shown in FIG. 5 (a), the torque generated on the left and right wheels on the left and right of the moment display section 500 indicating the state of the moment is the display segment 3b of the display segment group 2A1 on the drive side and the drive side. Is displayed by lighting the display segment 3b of the display segment group 2A2. That is, the torque difference between the left and right wheels when the vehicle C is traveling straight in the direction D1 is “0”, so the display mode is as described above.
　また、このような左右車輪のトルク差は「０」の状況ではヨーモーメントは発生しないので、図５（ａ）に示すように、ヨーモーメント表示部５００の内側５０１は無表示の状態となる。 Further, since the yaw moment does not occur in such a situation where the torque difference between the left and right wheels is “0”, the inner side 501 of the yaw moment display portion 500 is not displayed as shown in FIG.
　図５（ｂ）は、右側に図示するように、車両Ｃに反時計回り（矢印Ｍ１方向）のモーメントが生じた場合、即ち、左右車輪に制動力が加わった場合のヨーモーメント等の表示例である。 FIG. 5B shows a display example of a yaw moment or the like when a counterclockwise moment (in the direction of the arrow M1) is generated in the vehicle C, that is, when braking force is applied to the left and right wheels, as shown on the right side. It is.
　図５（ｂ）に示す表示例では、モーメントの状態を示すモーメント表示部５００の左右に、左車輪および右車輪に発生するトルクが、制動側の表示セグメント群２Ｂ１の表示セグメント４ｄと、制動側の表示セグメント群２Ｂ２の表示セグメント４ｂとの点灯によって表示されている。即ち、仮に車両Ｃが右方向に旋回している場合で、且つ、左車輪の制動力が右車輪の制動力より大きい状態となった場合には、上述のような表示態様となる。 In the display example shown in FIG. 5 (b), the torque generated on the left and right wheels on the left and right of the moment display section 500 indicating the state of the moment is the display segment 4d of the display segment group 2B1 on the braking side and the braking side. Is displayed by lighting the display segment 4b of the display segment group 2B2. That is, if the vehicle C is turning in the right direction and the braking force of the left wheel is greater than the braking force of the right wheel, the display mode is as described above.
　また、反時計回りのヨーモーメントが生じているので、ヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第１象限部５０１ｄと第３象限部５０１ｃが点灯される。 Further, since the counterclockwise yaw moment is generated, the first quadrant portion 501d and the third quadrant portion 501c are turned on in the quadrant region 501 in which the yaw moment display portion 500 is divided into four equal parts by the X axis and the Y axis. Is done.
　なお、ヨーモーメントが徐々に強くなるように変化する場合には、第１象限部５０１ｄと第３象限部５０１ｃの点灯色を赤系統や橙系統等の所謂危険色にグラデーションで変化させるようにしてもよい。 When the yaw moment changes so as to gradually increase, the lighting color of the first quadrant 501d and the third quadrant 501c is changed to a so-called dangerous color such as red or orange with gradation. Also good.
　また、第１象限部５０１ｄと第３象限部５０１ｃの点灯色が徐々に濃くなるように変化させるようにしてもよい。 Further, the lighting color of the first quadrant 501d and the third quadrant 501c may be changed so as to gradually increase.
　図５（ｃ）は、右側に図示するように、車両Ｃに時計回り（矢印Ｍ２方向）のモーメントが生じた場合、即ち、左右車輪に駆動力が加わった場合のヨーモーメント等の表示例である。 FIG. 5C shows a display example of a yaw moment or the like when a clockwise moment (in the direction of arrow M2) is generated in the vehicle C, that is, when a driving force is applied to the left and right wheels, as shown on the right side. is there.
　図５（ｃ）に示す表示例では、モーメントの状態を示すモーメント表示部５００の左右に、左車輪および右車輪に発生するトルクが、駆動側の表示セグメント群２Ａ１の表示セグメント３ａと、制動側の表示セグメント群２Ａ２の表示セグメント３ｂとの点灯によって表示されている。即ち、仮に車両Ｃが右方向に旋回している場合で、且つ、左車輪のトルクが右車輪のトルクより大きい状態となった場合には、上述のような表示態様となる。 In the display example shown in FIG. 5C, the torque generated on the left wheel and the right wheel on the left and right of the moment display section 500 indicating the state of the moment is the display segment 3a of the display segment group 2A1 on the driving side and the braking side. Is displayed by lighting the display segment 3b of the display segment group 2A2. That is, if the vehicle C is turning in the right direction and the torque of the left wheel is greater than the torque of the right wheel, the display mode is as described above.
　また、時計回りのヨーモーメントが生じているので、ヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち第２象限部５０１ａと第４象限部５０１ｂが点灯される。 In addition, since a clockwise yaw moment is generated, the second quadrant portion 501a and the fourth quadrant portion 501b are turned on in the quadrant 501 obtained by dividing the yaw moment display portion 500 into four equal parts by the X axis and the Y axis. The
　なお、ヨーモーメントが徐々に強くなるように変化する場合には、第２象限部５０１ａと第４象限部５０１ｂの点灯色を赤系統や橙系統等の所謂危険色にグラデーションで変化させるようにしてもよい。 When the yaw moment changes so as to gradually increase, the lighting color of the second quadrant 501a and the fourth quadrant 501b is changed to a so-called danger color such as red or orange with gradation. Also good.
　また、第２象限部５０１ａと第４象限部５０１ｂの点灯色が徐々に濃くなるように変化させるようにしてもよい。また、上記の場合において、ヨーモーメントの大きさに応じて各象限部の点灯領域の面積が変化することは無い。 Also, the lighting color of the second quadrant 501a and the fourth quadrant 501b may be changed so as to gradually increase. In the above case, the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
　また、図５では、第１象限部５０１ｄ、第３象限部５０１ｃ等の全領域を点灯させる場合を示すが、これに限らず、第１象限部５０１ｄ、第３象限部５０１ｃ等の一部の領域を点灯するようにしてもよい。この場合においても、ヨーモーメントの大きさに応じて各象限部の点灯領域の面積は変化しない。 Further, FIG. 5 shows a case where all the areas such as the first quadrant 501d and the third quadrant 501c are turned on, but the present invention is not limited to this, and some of the first quadrant 501d, the third quadrant 501c, and the like The area may be lit. Even in this case, the area of the lighting region in each quadrant does not change according to the magnitude of the yaw moment.
　また、図５では、ヨーモーメント表示部５００は円形の外形部５０１を有するので、ヨーモーメントのベクトルが円周方向（Ｍ１、Ｍ２等）であることと相俟って、車両のヨーモーメントの発生状態をより一層分り易く表示することができる。但し、ヨーモーメント表示部５００の外形は円形に限定されず、楕円形、矩形、長方形など種々の形状とすることもできる。 In FIG. 5, since the yaw moment display unit 500 has a circular outer portion 501, the generation of the yaw moment of the vehicle is combined with the fact that the yaw moment vector is in the circumferential direction (M1, M2, etc.). The state can be displayed more easily. However, the outer shape of the yaw moment display unit 500 is not limited to a circle, and may be various shapes such as an ellipse, a rectangle, and a rectangle.
（表示処理制御）
　図６に示すフローチャートを参照して、本実施の形態に係る車両用表示装置１で実行される表示制御処理の処理手順の例について説明する。 (Display processing control)
With reference to the flowchart shown in FIG. 6, the example of the process sequence of the display control process performed with the display apparatus 1 for vehicles which concerns on this Embodiment is demonstrated.
　まず、ステップＳ１０では、車両が備える所定のセンサ等から左右トルクの移動量を取得してステップＳ１１に移行する。 First, in step S10, the movement amount of the left and right torque is acquired from a predetermined sensor or the like provided in the vehicle, and the process proceeds to step S11.
　ステップＳ１１では、左右トルクの移動量に基いて左右にトルク差が有るか否かが判定され、「Ｎｏ」の場合にはステップＳ１０に戻り、「Ｙｅｓ」の場合にはステップＳ１２に移行する。 In step S11, it is determined whether or not there is a torque difference between the left and right based on the movement amount of the left and right torque. If “No”, the process returns to step S10, and if “Yes”, the process proceeds to step S12.
　ステップＳ１２では、所定の計算式に基いてヨーモーメントを算出してステップＳ１３に移行する。 In step S12, the yaw moment is calculated based on a predetermined calculation formula, and the process proceeds to step S13.
　ステップＳ４１３では、算出されたヨーモーメントに基いてヨーモーメント表示部５００に表示して処理を終了する。 In step S413, the yaw moment display unit 500 displays the calculated yaw moment to end the process.
　これにより、ヨーモーメントの変化状態を視覚的に瞬時に把握することが可能となる。 This makes it possible to grasp the changing state of the yaw moment visually and instantaneously.
（比較例）
　図７を参照して、比較例に係る車両用表示装置６００の表示態様の例について簡単に説明する。 (Comparative example)
With reference to FIG. 7, the example of the display mode of the display apparatus 600 for vehicles which concerns on a comparative example is demonstrated easily.
　比較例に係る車両用表示装置６００では、円形の表示領域をＸ軸とＹ軸からなる境界線で仕切り、車両に例えば時計回りのヨーモーメントＭ２が発生した場合には、左上領域と右下領域に表示される扇型の表示部６０１ａ、６０１ｂを点灯させている。 In the vehicle display device 600 according to the comparative example, a circular display area is partitioned by a boundary line composed of an X axis and a Y axis, and for example, when a clockwise yaw moment M2 occurs in the vehicle, an upper left area and a lower right area The fan-shaped display portions 601a and 601b displayed on the screen are turned on.
　また、車両に例えば時計回りのヨーモーメント（図示せず）が発生した場合には、右上領域と左下領域に表示される扇型の表示部を点灯させる。 Also, for example, when a clockwise yaw moment (not shown) is generated in the vehicle, the fan-shaped display units displayed in the upper right area and the lower left area are turned on.
　そして、ヨーモーメントＭ２等の強さは、扇型の表示部６０１ａ、６０１ｂ等の面積で表している。 The strength of the yaw moment M2 and the like is represented by the area of the fan-shaped display portions 601a and 601b.
　この比較例では、車両の運転者は、ヨーモーメントの発生状態を把握するために点灯位置と面積を認識する必要があり、ヨーモーメント発生状態の把握に若干時間を要する。 In this comparative example, the driver of the vehicle needs to recognize the lighting position and the area in order to grasp the generation state of the yaw moment, and it takes a little time to grasp the generation state of the yaw moment.
　これに対して、本実施の形態に係る車両用表示装置１では、図５等に示すように、ヨーモーメントの発生状態に応じて、ヨーモーメント表示部５００をＸ軸とＹ軸とで四等分した四分領域５０１のうち所定の象限部（５０１ａ～５０１ｄ）が点灯され、ヨーモーメントの大きさに応じて点灯の色彩や濃度が変化して表現する。このため、車両の運転者は、ヨーモーメント発生状態を瞬時に把握することができるというメリットがある。 On the other hand, in the vehicle display device 1 according to the present embodiment, as shown in FIG. 5 and the like, the yaw moment display unit 500 is divided into four parts by the X axis and the Y axis according to the generation state of the yaw moment. Predetermined quadrants (501a to 501d) of the divided quadrant area 501 are lit, and the lighting color and density change depending on the magnitude of the yaw moment. For this reason, there is an advantage that the driver of the vehicle can instantly grasp the yaw moment generation state.
　以上、本発明の車両用表示装置を図示の実施形態に基づいて説明したが、本発明はこれに限定されるものではなく、各部の構成は、同様の機能を有する任意の構成のものに置き換えることができる。 The vehicle display device of the present invention has been described based on the illustrated embodiment, but the present invention is not limited to this, and the configuration of each part is replaced with an arbitrary configuration having the same function. be able to.
　例えば、図８（ａ）に示すように、矩形状の所定の象限部（５０２ａ～５０２ｄ）の一部を点灯させてヨーモーメント発生状態を表示するようにしてもよい。 For example, as shown in FIG. 8A, a part of a predetermined rectangular quadrant (502a to 502d) may be turned on to display the yaw moment generation state.
　また、図８（ｂ）に示すように、矩形状の所定の象限部（５０３ａ～５０３ｄ）の矩形領域全体を点灯させてヨーモーメント発生状態を表示するようにしてもよい。 Further, as shown in FIG. 8B, the entire rectangular area of the predetermined rectangular quadrant (503a to 503d) may be turned on to display the yaw moment generation state.
　また、図８（ｃ）に示すように、表示部が円形の外形を有する場合において、所定の象限部（５０４ａ～５０４ｄ）の円形領域の一部を点灯させてヨーモーメント発生状態を表示するようにしてもよい。
  Further, as shown in FIG. 8C, when the display unit has a circular outer shape, a part of the circular area of the predetermined quadrant (504a to 504d) is turned on to display the yaw moment generation state. It may be.

Claims (3)

  1. 　車両の左右輪のトルク差により生じるヨーモーメントの状態をグラフィック表示するヨーモーメント表示部であって、Ｘ軸とＹ軸とで四等分した四分領域を有するものと、
    ヨーモーメントの発生状態に応じて前記ヨーモーメント表示部の表示を制御する表示制御部と、を備え、
    　前記表示制御部は、ヨーモーメントが無い状態の場合には前記ヨーモーメント表示部の内側を無表示の状態とし、時計回りのヨーモーメントが生じている場合には前記ヨーモーメント表示部を前記四分領域のうち第２象限部と第４象限部にて両領域の少なくとも一部を点灯し、反時計回りのヨーモーメントが生じている場合には前記ヨーモーメント表示部を前記四分領域のうち第１象限部と第３象限部にて両領域の少なくとも一部を点灯するように制御すると共に、点灯した各象限の色彩及び濃度の少なくとも一方がヨーモーメントの大きさに応じて変化するように制御する車両用表示装置。     A yaw moment display section for graphically displaying a state of a yaw moment generated by a torque difference between left and right wheels of the vehicle, having a quadrant divided into four parts by the X axis and the Y axis;
    A display control unit that controls the display of the yaw moment display unit according to the generation state of the yaw moment,
    The display control unit sets the inside of the yaw moment display unit to a non-display state when there is no yaw moment, and displays the yaw moment display unit when the clockwise yaw moment is generated. When at least a part of both the second quadrant and the fourth quadrant is lit in the region and a counterclockwise yaw moment is generated, the yaw moment display portion is displayed in the quadrant. Control is performed so that at least a part of both areas is lit in the first quadrant and the third quadrant, and at least one of the color and density of each lit quadrant is controlled according to the magnitude of the yaw moment. Display device for a vehicle.
  2. 　前記ヨーモーメント表示部は、円形の外形を有する請求項１に記載の車両用表示装置。 The vehicle display device according to claim 1, wherein the yaw moment display section has a circular outer shape.
  3. 　前記表示制御部は、ヨーモーメントを表示する際に、前記ヨーモーメント表示部を囲繞する外形線と、前記四分領域の第２象限部と第４象限部または第１象限部と第３象限部とで形成される全領域を点灯させるように制御する請求項１又は２に記載の車両用表示装置。
          The display control unit, when displaying the yaw moment, outlines surrounding the yaw moment display unit, the second quadrant portion and the fourth quadrant portion or the first quadrant portion and the third quadrant portion of the quadrant region The vehicle display device according to claim 1, wherein the vehicle is controlled so that the entire region formed by the light is turned on.
PCT/JP2014/084470 2014-01-09 2014-12-26 Display device for use in vehicle WO2015105020A1 (en)

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JP2014002214A JP2015129729A (en) 2014-01-09 2014-01-09 Vehicular display apparatus

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