Display device and motor vehicle with a display device

Abstract

Display device (100) for a motor vehicle (200) comprising a display (11), a support (12) and an adjustment device (13), wherein the display (11) is attached to the support (12), which allows height adjustment of the display (11) relative to a vehicle coordinate system by means of the adjustment device (13), and has at least one display element (16) which is pivotably mounted on the support (12) relative to the z-axis of the vehicle coordinate system, characterized in that the support (12) is designed as a T-beam (121) with a vertical support (17) and a horizontal support (18), wherein the horizontal support (18) is movably connected at at least one of its ends (19) to an arm (21) via a first joint (20), wherein the arm (21) is movably connected at its free end (22) to the display element (16) via a second joint (23).

Description

The invention relates to a display device for a motor vehicle comprising a display, a support and an adjustment device, wherein the display is attached to the support which allows height adjustment of the display by means of the adjustment device with respect to a vehicle coordinate system, and has at least one display element which is pivotably mounted on the support with respect to the z-axis of the vehicle coordinate system. Furthermore, the invention relates to a motor vehicle with such a display device. Display devices for motor vehicles and motor vehicles with display devices are known according to the prior art. Display devices are regularly installed in the cockpit area of ​​motor vehicles, in particular, and are designed to display various types of information. Such information can be relevant to the current journey, such as the vehicle's current speed, route information, or warning messages. On the other hand, information that is not relevant to the current journey, such as infotainment system settings or films, can also be displayed. For example, DE 10 2019 213 255 B3 discloses a display device for a motor vehicle, designed to display any information. Specifically, this document describes a motor vehicle with a display device, the display device comprising a display element adjustable into an interior trim element of the motor vehicle, with a display surface for showing content. Furthermore, the motor vehicle has a control and adjustment device configured to control a change between a first position of the display element, in which the display surface is arranged laterally from a longitudinal axis of the motor vehicle, and a second position of the display element, in which the display surface is arranged closer to the longitudinal axis and in which a larger proportion of the display surface protrudes from the interior trim element than in the first position.The control and adjustment device is designed to control the change between the first position and the second position depending on a driving mode of the motor vehicle. Another display device is described in EP 3 266 640 A1. Specifically, a multi-mode display device for a vehicle is disclosed, comprising a display screen unit with a display screen, wherein the display screen unit is configured to switch between an operating state of a first operating mode relating to manual vehicle propulsion functionality and a second operating mode relating to autonomous vehicle propulsion functionality. The display screen has a portrait orientation in the first operating mode and a landscape orientation in the second operating mode, wherein the display screen unit is adapted to be rotatably shifted between the portrait and landscape orientations. German patent application DE 10 2019 208 604 B3 describes a display device for a motor vehicle. The display device comprises a display element that includes a trapezoidal display surface for displaying information, wherein at least one first side of the display surface is longer than at least one other side of the display surface. The display surface comprises two display areas. An adjustment device is configured to set a predetermined angle between the at least two display areas in a folding area of ​​the display surface that extends along a transverse axis of the display surface, and to rotate the display element by a predetermined angle.A control device is designed to switch the display element between a visor position and a full display position by means of the adjustment device depending on a driving mode of the motor vehicle, wherein one of the display areas is angled along the folding area from the other display area in the visor position and is unfolded in the full display position compared to the visor position, and to rotate the display element by a predetermined rotation angle about a rotation axis that runs perpendicular to the display area of ​​the display surface depending on the driving mode. A generic display device and a generic motor vehicle are disclosed in US 2023 / 0339327 A1. The display device is a screen arrangement for the interior of a vehicle, the screen arrangement comprising: • a base component configured to be located in the interior of a dashboard or center console of the vehicle; • a screen component comprising a screen unit configured to display information to a user of the vehicle; • a translational guide device kinematically arranged between the screen component and the base component such that the screen component is translationally movable relative to the base component along a translational direction;and a first rotary guidance device, which is kinematically arranged between the screen component and the base component such that the screen component can be tilted relative to the base component about a tilting axis, wherein the first rotary guidance device and the translational guidance device are independent of each other and the tilting axis is perpendicular to the translational direction. Furthermore, DE 10 2017 223 126 A1 describes a soil cultivation machine, such as a road milling machine, recycler, stabilizer or surface miner, with a chassis and a machine frame supported by the chassis, wherein the soil cultivation machine has a working device for soil cultivation and wherein a driver's platform with a control panel for controlling at least one functional device of the soil cultivation machine is provided on the machine frame, wherein the control panel has a console body and a control panel movable relative to the console body with at least one control element assigned or assignable to a functional device for its control, wherein the control panel is movable between a stowed position and an operating position.wherein in the stowed position at least one control element is covered by a section of the control panel body and wherein in the operating position at least one control element is uncovered and therefore accessible for operation by a machine operator. With the increasing development of automated and autonomous driving, consumer demand is growing to further develop vehicle display systems so that they are also suitable for entertainment purposes and as monitors for mobile work. Current display systems are essentially unsuitable for this purpose because their display areas are limited by their design and because they are inflexible with regard to the orientation of these areas. The object of the invention is therefore to overcome the disadvantages of the prior art. In particular, a display device and a motor vehicle with such a display device are to be created, wherein the display device is to be flexible with regard to its possible applications. This problem is solved by the display device according to claim 1 and by the motor vehicle according to claim 9. According to the invention, the support is designed as a T-beam with a vertical support and a horizontal support, wherein the horizontal support is movably connected at at least one of its ends to an arm via a first joint, and wherein the arm is movably connected at its free end to the display element via a second joint. The vehicle coordinate system discussed here is a right-handed, Cartesian coordinate system whose x-axis is aligned with the direction of travel of the vehicle and whose z-axis coincides with the vehicle's vertical axis. Therefore, the display device, through its adjustment mechanism, allows for a needs-based height adjustment of the display, which depends not only on the intended use of the display device but also on the size and position of the user. Furthermore, the swiveling of at least one display element allows for ideal positioning relative to the user, enabling them to adjust the orientation of the display element according to external conditions, such as the current ambient light.The display device according to the invention is therefore flexible compared to the prior art and allows the installation of a comparatively large display element, which is also suitable for entertainment purposes and for use as a workplace. Advantageous embodiments of the invention are specified below and in the dependent claims. According to an advantageous further development of the invention, it is provided that the at least one display element is designed as a display, in particular as an LED display or OLED display. Preferably, a display device, intended to be mounted inside a motor vehicle, is at least partially enclosed by a housing, and the adjustment mechanism allows the support to be moved such that the display is mounted completely outside the housing in a first position and at least partially inside the housing in a second position. During autonomous driving or when the motor vehicle is stationary, the display can be fully extended from the housing so that the entire surface of the display element can be used to show information. In this respect, the display device can be used for entertainment purposes or as a work monitor in these states, and thus for performing ancillary tasks. However, as soon as the driver has to take over driving, because the current driving situation is not suitable for autonomous driving, for example, the display can no longer be used for autonomous driving.If the display is automatically controlled, it moves to the second position, so that the display element is partially recessed within the housing. This allows the driver an unobstructed view of the driving situation, and the section of the display element that protrudes from the housing can show driving-related information, such as the vehicle's current speed. A separate display for such information is therefore advantageously unnecessary. Alternatively, the display device can also be completely recessed into the housing. The housing opening that allows the display device to extend and retract is preferably closable, so that the housing is protected from dirt ingress when closed. According to an advantageous embodiment of the invention, the height of the display can be adjusted manually and / or by means of an actuator. An actuator configured for adjusting the height of the display can, for example, be an electric drive in the form of a rack and pinion, spindle, belt, cable, or scissor drive. Preferably, a damping element is connected in parallel to reduce any vibrations of the display device. Alternatively, the actuator can be a hydraulic or pneumatic cylinder, particularly a hydraulic or pneumatic cylinder in combination with a helical spring. The helical spring facilitates the extension process. This allows for the integration of simple damping, which prevents uncontrolled oscillation of the display device. Furthermore, it is preferably provided that partial or complete retraction of the display into the housing is only permitted if the display element is aligned parallel to the z-axis of the vehicle coordinate system. This effectively prevents the display from colliding with the housing when pivoted during retraction. The support is designed as a T-beam with a vertical and a horizontal beam. The vertical beam is aligned parallel to the z-axis of the vehicle coordinate system, while the horizontal beam runs parallel to the y-axis of the vehicle coordinate system. The horizontal beam is movably, and in particular pivotably, connected at least at one of its free ends to an arm via a first joint. Preferably, both ends of the horizontal beam are movably, and in particular pivotably, connected to an arm via a first joint. The at least one arm is movably, and in particular pivotably, connected at its free end to the display element via a second joint, so that the display element is pivotally movable with respect to the arm and with respect to the horizontal beam of the support.According to a preferred embodiment of the invention, the first joint and / or the second joint is designed as a rotary-sliding joint, which allows the display element to pivot and slide relative to the support. This allows any gap between two correspondingly mounted display elements to be kept constant and / or minimal, regardless of the pivot angle of one of the display elements. In a particularly advantageous further development of the invention, the first joint and the second joint are positively coupled such that, when the display element pivots, an inner side of the display element facing the support moves parallel to the xz-plane of the vehicle coordinate system or remains stable in position.The display element is preferably pivoted manually and / or by means of an actuator, the actuator preferably being designed as a motor-driven cable pull. According to a further preferred embodiment of the invention, the horizontal support is articulated to the vertical support, the joint being designed as a pivot joint that allows the display to rotate about the longitudinal axis of the horizontal support. In other words, the user aligns the display manually. This is preferably done via pivot axes or articulated axes with self-locking mechanisms. The return of the aligned display to its retracted position, however, is fully automatic, either in response to the user / driver operating a control element or, in the case of a takeover from an automated driving sequence, independently by the vehicle system. The preferred embodiment consists of one or more cable pulley systems with pulleys and cam discs. The cable pulley system is preferably driven electronically, in particular by an electronically driven cable puller. Alternatively, hydraulic or pneumatic drives are also possible. Once the display is in the retracted position, the cable puller is released so that the display can be manually swiveled again during the next extension process.In addition to manual adjustment of the display by the occupant, electrical swiveling of the display is also possible. This is achieved by direct drive of the rotary axes using an electric motor, which can be with or without a gearbox. Alternatively, pneumatic and hydraulic actuators can be used in conjunction with cam discs and deflection levers. In an advantageous embodiment of the invention, the display device, together with a floor section of the motor vehicle, can form part of a workstation setup. To equip the motor vehicle with an improved workstation setup that can also be operated while maintaining a modern posture, the floor section is designed so that the workstation setup can be operated by a person standing on the floor section. The floor section is height-adjustable relative to a vehicle coordinate system. This allows people of any height to operate the workstation while standing, thus avoiding the need for prolonged sitting on vehicle seats, which, for safety reasons, typically do not offer the same flexibility as office chairs in terms of mobility and adjustability.This helps prevent back pain in particular, which significantly improves the well-being of the person operating the workplace. The floor section is preferably positioned between two front seats of the vehicle. This allows the display device of the workstation to be used not only as a display / monitor during work, but also to show driving-related information while the vehicle is in motion. According to a further advantageous embodiment, the height adjustment mechanism is designed for manual or automated height adjustment of the floor section. For manual height adjustment, the floor section is preferably designed as a slide-in rail that can be inserted into a frame with a plurality of slide-in rails. In the simplest case, the frame can consist of lateral bases with correspondingly arranged slide-in rails on which the front seats of the vehicle are mounted. For automated height adjustment of the floor section, a lifting device and an actuator are preferably arranged. The actuator is preferably designed as an electric, pneumatic, or hydraulic actuator. In contrast, the lifting device, in an advantageous further development, is designed as a scissor lift, spindle drive, hydraulic cylinder, or pneumatic cylinder. The workstation setup preferably includes a computing unit and at least one input device, or is connectable to such devices. A portable or mobile PC (notebook) is particularly suitable as the computing unit. Input devices can be, for example, keyboards or mice. Specific embodiments of the display device and the motor vehicle with such a display device are explained below with reference to the figures. Figures 1a and 1b show a display device and a motor vehicle, respectively; Figures 2a-c show different views of a display device; Figures 3a and 3b show cross-sectional views of a motor vehicle. Figures 1a and 1b show a display device 100 of a motor vehicle 200 and a motor vehicle 200 with such a display device 100, respectively. In the illustrated embodiment, the motor vehicle 200 is designed as a minivan and has a vehicle seat 10 in the cockpit area. The display device 100 has a display 11, a support 12, and an adjustment mechanism 13. The display 11 is attached to the support 12, which, by means of the adjustment mechanism 13, allows height adjustment in the direction of arrow P1 of the display 11 with respect to a vehicle coordinate system. The motor vehicle 200 has a housing 14 that at least partially accommodates the display device 100. The adjusting device 13 allows the carrier 12 to be adjusted so that the display 11 is mounted completely outside the housing 14 in a first position (Fig. 1a) and at least partially inside the housing 14 in a second position (Fig. 1b). During highly automated driving (Level 3) with the vehicle 200, a driver (not shown) has the opportunity to perform secondary tasks while driving because they do not need to monitor the driving task. Nevertheless, they must be able to take over the driving task within a sufficient time window, for which purpose the display 11 can be moved between the two positions manually or by means of an actuator 31. When the vehicle 200 is operated in highly automated driving level 3, the driver may fully engage in secondary activities. In particular, they have the opportunity to work, watch films, surf the internet, and / or chat. The display device 100 is then set such that the display 11 is positioned completely outside the housing 14 (Fig. 1a). In this situation, lines of sight to the traffic ahead are irrelevant, and the entire surface of the display 11 can be used. The display 11 is electrically movable between positions, and the display device 100 is integrated into the vehicle 200's on-board system in such a way that, in a takeover scenario where the driver must assume control of the vehicle, the display 11 is automatically retracted, thus clearing the view of the traffic situation (Fig. 1b).In addition to the automatic mode for retracting the display 11, manual extension / retraction by the driver is also possible in secondary operation mode. To take over the manual driving task, the driver requires information about the vehicle's driving status 200, such as the current speed, navigation information, and warning messages. This information is displayed to the driver via the display device 100 in a section 15 of the display 11, which protrudes from the housing 14 when retracted. The movable display 11 is in a lower position, providing an unobstructed view of the road. Figures 2a-c show different views of the display device 100 in the first position of the display 11, in which the display 11 is arranged completely outside the housing 14. In this position, the display 11 serves to perform ancillary functions. Figure 2a shows a rear view of the display device 100, Figure 2b shows a front view of the display device 100, and Figure 2c shows a top view of the display device 100. To enable flexible and individual adjustment of the display 11, the display 11 has two display elements 16 in the form of two displays 161, which are pivotably mounted on the support 12 with respect to the z-axis of the vehicle coordinate system. Manual and / or automatic height adjustment of the display 11 for partial or complete retraction of the display 11 into the housing 14 is only permitted if the display element 16 is aligned parallel to the z-axis of the vehicle coordinate system. Otherwise, movement of the display element 16 in the direction of arrow P1 is blocked. The support 12 is designed as a T-beam 121 with a vertical support 17 and a horizontal support 18. The horizontal support 18 is pivotally connected at both ends 19 to an arm 21 via a first joint 20. The arms 21 are pivotally connected at their free ends 22 via a second joint 23 to each of the display elements 16.The first joints 20 are designed as rotary joints 201, so that the arms 21 can rotate along the directions of arrows P2,3. In contrast, the second joints 23 are each designed as rotary-sliding joints 231, so that the display elements 16 can pivot relative to the arms 21 in the directions of arrows P4,5 and slide along the directions of arrows P6,7. The first joints 20 and the second joints 23 are positively coupled in such a way that an inner surface 24 of the display elements 16 facing the support 12 remains stable when the display elements 16 are pivoted. This creates a constant gap 25 regardless of the specific positioning of the display elements 16 relative to each other. The pivoting of the display elements 16 is carried out by means of an actuator 26, wherein the actuator 26 in the illustrated embodiment is designed as a motor-driven cable pull 27 with a cable 28, a cam disk 29 and a cable puller 30. The horizontal support 18 is connected to the vertical support 17 by a hinge, the hinge being designed as a swivel joint which allows the display 11 to rotate about the longitudinal axis of the horizontal support 18, which is aligned parallel to the y-axis of the vehicle coordinate system. Figures 3a and 3b each show a cross-sectional view of the motor vehicle 200 with the workstation 40, which includes the display device 100 and the floor section 42. The workstation 40 has a computing unit 43 and at least one input device 44. The floor section 42 is height-adjustable relative to the vehicle coordinate system in the direction of arrow P8 by means of a height adjustment mechanism 45, so that a person of any height can operate the workstation 40 while standing. The floor section 42 is arranged between the two front seats 10 of the motor vehicle 200. The height adjustment mechanism 45 is designed for manual height adjustment (Fig. 3a) or automated height adjustment (Fig. 3b) of the floor section 42. The floor section 42 for manual height adjustment is designed as a slide-in rail 46, which can be inserted into a frame 47 with a plurality of corresponding slide-in rails 48.These are mounted on the left and right sides in bases 48, on which the vehicle seats 10 rest. For automated height adjustment of the floor section 42, a lifting device 49 is arranged in combination with an actuator 50. The actuator 50 can be designed as an electric, pneumatic, or hydraulic actuator, and the lifting device 49 can be designed as a scissor lift, spindle drive, hydraulic cylinder, or pneumatic cylinder. Reference symbol list 100 Display device 200 Motor vehicle 10 Vehicle seat 11 Display 12 Beam 121 T-beam 13 Adjustment device 14 Housing 15 Section 16 Display element 161 Display 17 Vertical beam 18 Horizontal beam 19 Free end 20 First joint 201 Swivel joint 21 Arm 22 Free end 23 Second joint 231 Rotary thrust joint 24 Inside 25 Gap 26 Actuator 27 Cable pull 28 Cable 29 Cam disc 30 Cable puller 31 Actuator 40 Workplace equipment 42 Floor section 43 Computing unit 44 Input device 45 Height adjustment 46 Insertion rails 47 Frame 48 Insertion rails 49 Lifting device 50 Actuator Pn Arrow direction (n = 1,...,8)

Claims

Display device (100) for a motor vehicle (200) comprising a display (11), a support (12) and an adjustment device (13), wherein the display (11) is attached to the support (12), which allows height adjustment of the display (11) relative to a vehicle coordinate system by means of the adjustment device (13), and has at least one display element (16) which is pivotably mounted on the support (12) relative to the z-axis of the vehicle coordinate system, characterized in that the support (12) is designed as a T-beam (121) with a vertical support (17) and a horizontal support (18), wherein the horizontal support (18) is movably connected at at least one of its ends (19) to an arm (21) via a first joint (20), wherein the arm (21) is movably connected at its free end (22) to the display element (16) via a second joint (23). Display device (100) according to claim 1, characterized in that a housing (14) receives the display device (100), at least partially, and the adjusting device (13) allows the carrier (12) to be adjusted such that the display (11) is mounted completely outside the housing (14) in a first position and at least partially inside the housing (14) in a second position. Display device (100) according to claim 2, characterized in that the height adjustment of the display (11) is carried out manually and / or by means of an actuator (31), wherein partial or complete retraction of the display (11) into the housing (14) is preferably only permitted when the display element (16) is aligned parallel to the z-axis of the vehicle coordinate system. Display device (100) according to one of claims 1 to 3, characterized in that the horizontal support (18) is pivotably connected to the arm (21) at at least one of its ends (19) via the first joint (20). Display device (100) according to one of claims 1 to 4, characterized in that the arm (21) is pivotably connected to the display element (16) at its free end (22) via the second joint (23). Display device (100) according to one of claims 4 or 5, characterized in that the first joint (20) and / or the second joint (23) is designed as a rotary-sliding joint (231) which allows a pivoting of the display element (16) and a sliding movement with respect to the carrier (12). Display device (100) according to one of claims 4 to 6, characterized in that the first joint (20) and the second joint (23) are positively coupled in such a way that an inner side (24) of the display element (16) facing the carrier (12) shifts or remains stable in position when the display element (16) is pivoted parallel to the xz-plane of the vehicle coordinate system. Display device (100) according to one of claims 1 to 7, characterized in that the display element (16) is pivoted manually and / or by means of an actuator (26), wherein the actuator (26) is preferably designed as a motor-driven cable pull (27). Motor vehicle (200) with a display device (100), characterized in that the display device (100) is designed according to one of claims 1 to 8. Motor vehicle (200) according to claim 9, characterized by a workstation device (40) comprising the display device (100) and a floor section (42), wherein the floor section (42) is configured such that the workstation device (40) can be operated by a person standing on the floor section (42), wherein the floor section (42) is height-adjustable with respect to the vehicle coordinate system by means of a height adjustment (45). Motor vehicle (200) according to claim 10, characterized in that the floor section (42) is arranged between two front seats (10) of the motor vehicle (200). Motor vehicle (200) according to one of claims 10 or 11, characterized in that the height adjustment (45) is designed for manual or automated height adjustment of the floor section (42). Motor vehicle (200) according to claim 12, characterized in that the floor section (42) for manual height adjustment is designed as an insertion strip (46) which can be inserted into a frame (47) with a plurality of insertion rails (48). Motor vehicle (200) according to claim 12, characterized in that a lifting device (49) and an actuator (50) are arranged for automated height adjustment of the floor section (42), wherein the actuator (50) is preferably designed as an electric, pneumatic or hydraulic actuator and / or the lifting device (49) is preferably designed as a scissor lift, spindle drive, hydraulic cylinder or pneumatic cylinder.

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