• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE1151132A1
    申请号:SE1151132
    申请日:2011-11-28
    公开日:2013-05-29
    发明作者:Jonny Johansson
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    SUMMARY OF THE INVENTION This and other objects, which appear from the following description, are achieved by means of a display device and a motor vehicle of the kind initially indicated and further having the features set forth in the characterizing part of appended independent claims 1 and 9.
    Preferred embodiments of the display device are defined in appended dependent claims 2-8.
    According to the invention, the object is achieved with a display device for displaying at least one parameter of information concerning the operation of the vehicle, comprising means for controlling a rotational movement of at least one marker, the rotational movement corresponding to values of said at least one parameter, further comprising at least one light guide along which values of said at least one parameter are intended to be illustrated in the form of illuminated portions of said light guide, at least one marker being arranged to shield light in said light guide to provide clear, space-saving and cost-effective display of such information in said illuminated portions. This enables high-resolution, high-resolution can be achieved by the rotational movement by means of, for example, a stepper motor, whereby light guides can be arranged space-saving, for example in connection with an existing meter on the dashboard of the vehicle.
    According to an embodiment of the display device, the light guide is arranged in an arcuate configuration. In this way, rotational movement of the marker can be easily transmitted to light guides for producing an illuminated portion in light guides.
    According to an embodiment of the display device, said marker comprises a divider slidably arranged in said light guide. This enables effective shielding of light to provide an illuminated portion in light guides, where said shielding can consist of substantially total blocking of light.
    Alternatively, said shielding of light allows a certain overflow of light so as to have a less sharp transition from illuminated to unlit portion of light guide.
    According to an embodiment of the display device, said means for controlling rotational movement comprise an electric motor. This enables high-resolution display of information through illuminated portions in a light guide.
    According to an embodiment of the display device, said electric motor consists of a stepper motor with at least one shaft. This enables high-resolution display of information through an illuminated section in light guides. Furthermore, conventional technology is used to control a marker in the form of hands in meters for further presentation of information by illuminating a portion in light guides. Enables the use of an existing stepper motor for effecting the presentation of information by illuminating portions of a light guide by means of a marker connected to a stepper motor.
    According to an embodiment of the display device, said marker comprises a marker portion connected to said means. Hereby rotational movement of the cursor is effected by connecting the cursor portion to said means for controlling the rotational movement.
    According to an embodiment of the display device, values relating to at least two parameters are intended to be illustrated along light guides, one marker per illuminated portion being present. This makes it possible to display information by illuminating a portion of the light guide and other information by illuminating the portion of the light guide, which enables clear and space-saving display of various information. This can be achieved with one and the same light guide or with, for example, one light guide per illuminated portion.
    According to an embodiment of the display device, a marker constitutes a pointer arranged to display parameter values along a scale. In this way, in the same display device, both conventional display by marker in the form of hands visible on the display surface of display elements of the display device and display by illuminating a portion of light guides can preferably be arranged in an arcuate arrangement around the display element.
    DESCRIPTION OF THE DRAWINGS The present invention will be better understood with reference to the following detailed description read in conjunction with the accompanying drawings, in which like reference numerals refer to like parts throughout the many views, and in which: Fig. 1 schematically illustrates a side view of a motor vehicle; ; Fig. 2 schematically illustrates a front view of a display device according to an embodiment of the present invention; Fig. 3a schematically illustrates a cross section of a part of the display device in Fig. 2; Fig. 3b schematically illustrates a divider of a display device according to an embodiment of the present invention; Fig. 4 schematically illustrates a side view of the display device in fig. 2; and Fig. 5 schematically illustrates a front view of a display device according to an embodiment of the present invention.
    DESCRIPTION OF EMBODIMENTS Referring to Figure 1, a side view of a vehicle 1 is shown. The exemplary vehicle 1 consists of a heavy vehicle in the form of a truck. The vehicle can be any vehicle such as a bus, a car, a motorcycle, a moped, a boat, an airplane, a scooter, etc. The vehicle comprises a display device I; 11 according to the present invention. Display device I; 11 is preferably arranged in connection with an instrument panel of the vehicle.
    Fig. 2 schematically illustrates a front view of a display device I according to an embodiment of the present invention and, Fig. 4 a side view of the display device I in fig. 2 arranged on an instrument panel P of a vehicle.
    The display device I has a display element 10 with a display surface 10a for displaying a parameter of vehicle information. Accordingly, the display element 10 has a front side constituting the display surface 10a and a back side 10b.
    According to this embodiment, the display element 10 is substantially circular.
    The display device I comprises means 20 for controlling a rotational movement about an axis X. Said means 20 comprises an electric motor 22 which according to this embodiment consists of a stepping motor 22 with a first axis 22a and a second axis arranged to rotate about said axis and rotatable relative to each other . According to the variant of Fig. 4, the first shaft 22a is arranged to rotate in the second shaft 22b.
    Said means 20 for controlling the rotational movement comprises a first vehicle parameter determining means 24 for determining a first vehicle parameter of vehicle information, the stepper motor 22 being arranged to rotate the first shaft 22a based on said first vehicle parameter.
    Said means 20 also comprises a second vehicle parameter determining means 26 for determining a second vehicle parameter of vehicle information, the stepper motor 22 being arranged to rotate the second shaft 22b based on said second vehicle parameter.
    Said stepper motor 22 is arranged relative to the display element 10 so that said first and second shafts 22a, 22b of the stepper motor 22 are aligned with the center portion of the circular display element 10 and follower connection to the rear side 10b of the display element 10, the first shaft 22a according to this the shaft X. The stepper motor 22 is arranged in an embodiment is arranged to project through the center portion of the display element 10.
    The display device I comprises a first marker 30 in the form of a needle or gauge needle. Said first marker 30 is connected to said first shaft 22a of the stepper motor 22. Said first marker 30 is arranged to project radially from said first shaft 22a of the stepper motor 22, the first marker 30 extending towards the periphery of the display element 10. Said first marker 30 is arranged to run parallel to the display surface 10a of the display element 10. According to a variant, the display surface 10a of the display element 10 has a scale (not shown) along its periphery.
    The display device I comprises a second marker 32 including a marker portion 32a which according to this embodiment consists of a needle portion 32a.
    Said second marker 32 is connected to said second shaft 22b of the stepper motor 22. Said second marker 32 is arranged to project radially from said second shaft 22b of the stepper motor 22. Said second marker 32 is arranged to run parallel to the second side 10b of the display element. 10.
    Said display device I comprises a light guide 40 along which values of said second parameter of vehicle information are intended to be illustrated in the form of illuminated portion 40a of said light guide 40.
    Said light guide 40 is arranged in a cup-shaped configuration around said display element 10. Said light guide 40 is consequently arranged in connection with said display element 10, said light guide 40 being arranged to run externally along the periphery of the display element 10.
    Said light guide 40 has a groove 42 facing the periphery of said display element 10. Said second marker 32 comprises a divider 32b.
    The divider 32b is connected to said needle portion 32a in the opposite end of the needle portion 32a attached to said second shaft 22b. Said divider 32b is arranged to shield light in said light guide 40 to provide illuminated portion 40a. Said divider 32b is intended to run in said light guide 40. According to this embodiment, said divider 32b has a spatula shape, see Fig. 3a. Said divider 32b has a shape which substantially corresponds to the shape of the inner surface of said light guide 40 as shown in Fig. 3a. The shape of the circumference of said divider substantially corresponds to the inner shape of said light guide. Said divider 32b is slidably arranged in said light guide 40.
    Said divider 32b is according to a variant configured to completely shield light so that substantially no light was allowed to be passed through the divider 32b. Said divider 32b is according to a variant configured to shield light so that a certain amount of light is allowed to be transmitted so that a certain overflow of light is allowed through the divider 32b. This results in a less sharp transition from the illuminated portion of the light guide 40 to the unlit portion of the light guide 40.
    Fig. 3b schematically shows an alternative variant of marker 34 with needle portion 34a and divider 34b, where divider 34b comprises brush portions 34c arranged so that when divider 34b is displaced in the light guide 40 flexibly act against the inner surface of the light guide so as to improve the light density of divider 34b.
    Said brush portions 34c are consequently arranged to project from the edge portion of the divider 34b.
    Said light guide 40 includes a light source 44. Said light source 44 is constituted according to a variant of one or more diodes. Said light guide 40 is configured to distribute the light from said light source 44 so that the light in said light guide 40 is substantially evenly distributed along the entire light guide 40.
    According to this embodiment, said light guide 40 has, as shown in Fig. 3a, a substantially square cross-section, here with rounded corners. Said light guide 40 may have any suitable cross-section such as circular, oval, rectangular, pentagonal, hexagonal, etc., where the light guide 40 has a groove for allowing a marker 32 provided with divider 32b to be connected to a rotating shaft. 22b to run in the light guide 40.
    Said vehicle parameters of vehicle information can be any vehicle parameters of vehicle information.
    According to one embodiment, the first vehicle parameter of vehicle information shown by the position of the first marker 30 along the display surface 10a of the display element 10 is the fuel level of the vehicle, and the second vehicle parameter of vehicle information shown by the position of the second marker 32b divider 32b along the light guide 40. i.e. the illuminated portion 40a of the light guide 40, of the urea level of the vehicle. According to a variant, the light guide 40 is configured to give a blue light to indicate the urea level.
    According to an alternative variant, the position of the first marker 30 along the display surface 10a of the display element 10 is constituted by the speed of the vehicle, and the second vehicle parameter of vehicle information shown by the position of the divider 32b of the second marker 32b along the light guide 40, i.e. the illuminated portion of the light guide 40, of the vehicle's engine speed.
    Fig. 5 schematically illustrates a front view of a display device 11 according to an embodiment of the present invention.
    This embodiment of the display device 11 differs from the embodiment of the display device I according to Fig. 2 in that an additional vehicle parameter of vehicle information is displayed in the form of an illuminated portion of an additional light guide.
    Accordingly, the display device 11 according to this embodiment comprises means for controlling a rotational movement about an axis, said means comprising a stepper motor (not shown) having a first axis, a second axis and a third axis arranged to rotate about said axis and are rotatable relative to each other. Accordingly, the display device 11 according to this embodiment comprises a first marker 130 in the form of a pointer or gauge needle, connected to said first shaft of the stepper motor and visible on the display surface of the display element according to the first marker in the embodiment of Fig. 2.
    The display device 11 comprises a second marker 132 connected to said second shaft of the stepper motor. The display device 11 further comprises a third marker 134 connected to said third shaft of the stepper motor.
    Said display device 11 comprises a first light guide 140 along which values of said second parameter of vehicle information are intended to be illustrated in the form of illuminated portion 140a of said light guide 140 by means of a first light source 144 arranged in connection with an end portion of the first light guide 140.
    Said first light guide 140 is arranged in an arcuate configuration around said display element 10. Said first light guide 140 is consequently arranged in connection with said display element 10, said first light guide 140 being arranged to run externally along a portion of the periphery of the display element 10.
    Said display device 11 comprises a second light guide 150 along which values of said third parameter of vehicle information are intended to be illustrated in the form of illuminated portion 150a of said light guide 150 by means of a second light source 154 arranged in connection with an end portion of the second light guide 150.
    Said second light guide 150 is arranged in an arcuate configuration around said display element 10. Said second light guide 150 is consequently arranged in connection with said display element 10, said second light guide 150 being arranged to run externally along a portion of the periphery of the display element. In this case, said first light guide 140 and said second light guide 150 are arranged one after the other along the periphery of the display element 10. Said first and second light guides 140, 150 have, in accordance with the light guide 40 of the display device I according to the embodiment in Fig. 2, a groove facing towards the periphery of said display element 10.
    Said second and third markers 132, 134 of the display device 11 include in accordance with the second marker 32 of the display device I according to the embodiment in fig. 2 a divider 132b, 134b. According to a variant, the divider is connected to a needle portion 132a, 134a of the respective marker 132, 134.
    Said divider 132b of the second marker 132 is arranged to shield light in said first light guide 140 to provide illuminated portion 140a, where the divider 132b is intended to run in said first light guide 140 and is consequently slidably arranged in the first light guide 140.
    Said divider 134b of the third marker 134 is arranged to shield light in said second light guide 150 to provide illuminated portion 150a, where the divider 134b is intended to run in said second light guide 150 and is consequently slidably arranged in the second light guide 150.
    Said divider 132b, 134b of the second and third markers 132, 134 respectively comprise a marker portion 132a, 134a in accordance with the marker portion described with reference to Figs. 2, 3a and / or 3b.
    According to a variant, said first and second light guides 140, 150 constitute an individual light guide 140, 150 in accordance with the light guide of the display device in Fig. 2, where the individual light guide 140, 150 is arranged in an arcuate shape around the display element 10 and where the individual The light guide includes the first light source 144 disposed adjacent one end portion and the second light source disposed in the second end portion 154 of the light guide 140, 150. Here, the divider 132b of the second marker 132 shields light from the first light source 144 so that only a portion 140a between the divider 132b and the first light source 144 of the individual light guide 140, 150 are illuminated, and the divider 134b of the third marker 134 lights from the second light source 154 so that only a portion 150a between the divider 134b and the second light source 154 of the individual The light guide is illuminated 140, 150.
    By using an individual light guide, larger illuminated areas can be used by allowing each divider to run in the same area as the other divider, but not simultaneously.
    According to one embodiment, the first vehicle parameter of vehicle information displayed by the position of the first marker 130 along the display surface 10a of the display element 10 is the engine speed of the vehicle.
    Furthermore, according to this embodiment, the second vehicle parameter of vehicle information is shown by the position of the divider 132b of the second marker 132 along the first light guide 140, i.e. the illuminated portion of the first light guide 140a, of intervals for optimum speed from the emission point of view, i.e. for example carbon dioxide emissions, nitrogen oxides, etc., where operating parameters of the vehicle such as gear position are included, where the range consequently varies based on operating parameters. In this way, the driver can optimize his driving. This illuminated portion 140a is according to a variant green.
    Furthermore, according to this embodiment, the third vehicle parameter of vehicle information is displayed by the position of the divider 134b of the third marker 134 along the second light guide 150, i.e. the illuminated portion 150a of the second light guide 150, of the oil temperature, where low oil temperature means that the engine speed should be kept lower. According to a variant, this illuminated portion 150a is red.
    Above, stepper motor display devices with two or three axes have been described with reference to figures where a marker in the form of a pointer visible on the display surface is arranged to show a parameter of vehicle information, and a second and in the embodiment shown in Fig. 5 also a third markers are arranged to shield the portion of the light guide so as to show another parameter of vehicle information.
    According to an alternative embodiment, the display device has a stepper motor with only one shaft, the shaft being connected to a marker arranged to shield light in a light guide of the display device for producing an illuminated portion in the light guide, the rotational movement of the marker corresponding to parameters of vehicle information, and where a divider of the marker is arranged to shield the light in the light guide in accordance with what has been described above.
    According to a further alternative, the stepper motor display device with two shafts could have two light guides, a first and a second light guide with a respective light source or a single light guide with a light source at each end, according to the embodiment / variant in Fig. 5, where accordingly a first marker is arranged to shield light in the first light guide for providing an illuminated portion and a second marker is arranged to shield light in the second light guide for producing an illuminated portion.
    According to a further alternative, the three-axis stepper motor display device, in accordance with the embodiment of Fig. 5, could have three, a first, a second and a third light guide with a respective light source, where consequently a first marker is arranged to shield light in the first light guide for producing an illuminated portion, a second marker arranged to shield light in the second light guide for producing an illuminated portion, and a third marker arranged to shield light in the third light guide for producing an illuminated portion.
    Above, light guides with a substantially arcuate shape have been described and illustrated. According to a variant, the light guide has a substantially straight shape, wherein the straight light guide can be arranged in any suitable manner on the dashboard of the vehicle, such as substantially horizontally or substantially vertically. This requires means for converting the rotational movement of the stepper motor into a translational movement, so that dividers are allowed to run in the straight light guide in a reciprocating movement to produce an illuminated portion. Above, means for controlling a rotational movement of at least one marker, the means including an electric motor in the form of a stepper motor with at least one shaft, have been described with reference to figures. Said means for controlling rotational movement of at least one marker may comprise any suitable electromechanical device / motor such as for instance an electric motor with position sensor.
    The above description of the preferred embodiments of the present invention has been provided for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the invention to the variations described. Obviously, many modifications and variations will occur to those skilled in the art. The embodiments have been selected and described to best explain the principles of the invention and its practical applications, thereby enabling one skilled in the art to understand the invention for various embodiments and with the various modifications appropriate to the intended use.
    权利要求:
    Claims (9)
    [1]
    A display device (|; ll) for displaying at least one parameter of information relating to the operation of the vehicle, comprising means (20) for controlling a rotational movement of at least one marker (30, 32; 34; 130, 132, 134), wherein the rotational movement corresponds to values of said at least one parameter, characterized by at least one light guide (40; 140, 150) along which values of said at least one parameter are intended to be illustrated in the form of illuminated portions (40a; 140a, 150a) of said light guide (40). 140, 150), wherein at least one marker (32; 34; 132, 134) is arranged to shield light in said light guide to provide said illuminated portions (40a; 140a, 150a).
    [2]
    A display device according to claim 1, wherein the light guide (40; 140, 150) is arranged in an arcuate configuration.
    [3]
    A display device according to claim 1 or 2, wherein said marker (32; 34; 132, 134) includes a divider (32b; 34b; 132b, 134b) slidably disposed in said light guide (40; 140, 150).
    [4]
    A display device according to any one of claims 1-3, wherein said means (20) for controlling rotary tube travel comprises an electric motor (22).
    [5]
    A display device according to claim 4, wherein said electric motor comprises a stepper motor (22) with at least one shaft (22a, 22b).
    [6]
    A display device according to any one of claims 1-5, wherein said marker comprises a marker portion (32a; 34a; 132a, 134a) coupled to said means (20).
    [7]
    A display device according to any one of claims 1-6, wherein values for at least two parameters are intended to be illustrated along light guides, wherein a marker (32; 34; 132, 134) is present per illuminated portion (40a, 140a, 150a). 15
    [8]
    A display device according to any one of claims 1-7, wherein a marker (30; 130) constitutes a pointer arranged to display parameter values along a scale.
    [9]
    Motor vehicle comprising a display device (|; ll) according to any one of claims 1-8.
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    同族专利:
    公开号 | 公开日
    SE536184C2|2013-06-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1151132A|SE536184C2|2011-11-28|2011-11-28|Display device|SE1151132A| SE536184C2|2011-11-28|2011-11-28|Display device|
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