JP2008045737A - Wheel brake with light emitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a developed form and alternatives for a conventional technology to overcome conventional faults and to improve vehicle safety by excellent visibility of a vehicle or the possibility of displaying driving obstacles on the one hand while reinforcing the optical action of the vehicle or wheel brakes on the other hand. <P>SOLUTION: The wheel brakes 1, 31, 51, 61 for the vehicle have light emitting devices 3, 4, 33, 34, 53, 54, 63, 64. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention particularly relates to vehicle wheel brakes. A known embodiment is a drum brake or a disc brake, which can be further divided into a fixed caliper disc brake and a floating caliper disc brake.

  In modern vehicles, on the one hand, it is seen that many vehicle elements are provided with light emitting means in order to improve safety in road traffic with high visibility and on the other hand to enhance the visual appearance. Patent Document 1 discloses a vehicle light emission device attached to a vehicle wheel. According to this, traffic safety is improved. Preferably, this device is integrated into the wheel cap of the wheel rim and has a battery, a light emitting means and a switching device. In this case, the need for a battery can be regarded as a drawback since the battery must be replaced regularly.

In addition, the rim is formed with more gold and silver wirework, which tends to visually recognize wheel brakes. For this reason, wheel brake components are optimized with respect to design. The unpublished patent document 2 is specifically intended to harmonize the appearance of the disc brake with a protective shield.
German utility model No. 298 15 882 specification German patent application No. 10 2006 025 304.3

  The object of the present invention is to provide developments and options over the prior art that can overcome the disadvantages so far.

  This object is achieved according to the invention by the wheel brake having a light emitting device according to the features of claim 1. This technical measure can show a number of advantageous developments. On the other hand, here, for example, improved vehicle safety due to good visibility of the vehicle or the possibility of displaying a driving failure can be mentioned. On the other hand, the teachings of the present invention provide a measure to enhance the visual action of the vehicle or wheel brake.

  An advantageous development of the invention consists in that the light-emitting device is arranged in a non-rotatable part of the wheel brake. This eliminates the need for costly sliding contacts or other wireless transmission schemes by supplying electrical energy directly from the vehicle's battery circuit to the wheel brakes via cables via the cable. can get. This can be done particularly easily by integrating the power supply into the wiring supply of other elements wired for wheel sensors, wear sensors or wheel brakes. Vehicle brakes are mostly hydraulically operated by moving a piston in which fluid in a working chamber under pressure can move. However, it is prominent that it will be used in other vehicle operating mechanisms in the future as well, particularly in brakes having an electric and electromechanical operating part or a braking power self-amplifying part. When using electrically operated wheel brakes, the power supply can be realized in a particularly simple manner.

  Furthermore, the non-rotatable part has a brake caliper. The brake caliper surrounds at least the brake disc of the wheel brake, but the brake disc is non-rotatably coupled to the vehicle wheel and is forced to participate in the rotational movement of the wheel. The brake caliper may be a floating caliper of a floating caliper disc brake, but the brake caliper is supported on a holder that is movably fixed to the vehicle. In this case, the brake caliper has two caliper legs connected via a caliper bridge. At least one operating device is provided on one leg, and this operating device presses the brake pad against the brake disc and moves the entire caliper in the opposite direction by the reaction force, thereby the other caliper leg. Press the brake pad against the other side of the brake disc. Although it is possible to use a fixed caliper, the brake disc is subjected to the action of operating devices and brake pads provided on both sides, in which case the brake caliper remains fixed to the vehicle. Furthermore, other caliper structure forms are possible, for example, a mixed form of a brake caliper of a fixed caliper brake and a floating caliper brake or a wedge brake.

  Another embodiment of the invention is characterized in that the multidimensional contour of the brake caliper is at least partially replicated by imprinting the geometry of the light emitting device. This measure aims to enhance the appearance of the wheel brakes, particularly when the brake calipers of the wheel brakes contain the characteristic shape elements of the vehicle.

  In addition, the light emitting device is, for example, a light emitting ring or light emitting hose bent into a ring shape, which is attached to a non-rotatable portion of the wheel brake, and the ring portion follows the brake disc, so that the light emitting device has a brake disk geometry. Can be formed to feel. In this case, this embodiment of the light-emitting device can produce a light-emitting effect that rotates completely or partly, in monochromatic or multi-color or even at least partly about the axis of rotation of the brake disc by the light-emitting device. It is possible to emit light. In this way, a visual rotation of the light emitting device that feels the rotational movement of the brake disc can be obtained. It is particularly advantageous if the rotational effect of the light emitting device is synchronized with the rotational speed of the brake disc, preferably by using the signal of the wheel rotational speed sensor for the control of the light emitting device.

  The basic idea of the present invention can be extended to a drum brake. In this case, the non-rotatable portion of the wheel brake has a brake carrier for the drum brake, and the light emitting device is disposed on the brake carrier.

  The specific implementation of the light emitting device is freely selectable, but preferably at least one light emitting hose and / or fluorescent film and / or display and / or LED can be used. These light-emitting devices stamped in various ways can be freely combined and applied individually or together. Since the light emitting film has a corresponding surface for mounting, it is suitable for a non-rotatable part of the wheel brake, particularly for a brake caliper. A light-emitting hose or hose-like light-emitting device is advantageous for the optical technical emphasis of the brake disc. It can be seen that LEDs or lamps are also advantageous for point emission, low location and power requirements.

  The light-emitting device is very advantageously formed as a graphic character element and / or a shape element and / or an image element in order to function as an identification mark, in particular when it is provided on a brake caliper. In this case, for example, a characteristic design feature, a logo, or a character element of the vehicle is displayed by the light emitting device of the wheel brake, and thus the corporate design concept of the vehicle manufacturer can be considered.

  Another embodiment of the present invention includes thermally separating the light emitting device from the wheel brake. This is advantageous because frictional energy is radiated from the wheel brake components in the form of heat, which in some circumstances causes the light emitting device to be entrained. Such separation can be considered by using an insulating layer or insulating shield between the wheel brake and the light emitting device. In this case, on the one hand, the brake caliper is protected from impacts or other negative effects, and the wheel brake is made compact and harmonious in appearance, and on the other hand, the light emitting device is accommodated and the light emitting device is protected from thermal overload. It has been found that the use of a shield is particularly advantageous.

  Since wheel brakes are subject to significant dirt, especially when wet, according to another configuration of the invention, the wheel brakes are suitable for releasing the light emitting device from dirt and thereby guaranteeing the luminous power. Means are provided for cleaning. This means for cleaning receives the necessary energy from the rotational energy of the wheel brakes and will not work after a certain number of revolutions, thereby preventing the light emitting device from being damaged by mechanical overload. .

  The wheel brake light-emitting device can advantageously be used to display various operating conditions of the vehicle and / or individual components, in particular various operating conditions of the brake system. In this case, different light emission states of the light emitting device can correspond to various operation states.

Furthermore, the vehicle or the brake system itself comprises means for detecting different driving conditions, at least-a step of detecting and grading the driving conditions, and-a constant light emission state corresponding to the driving state of the light emitting device of the wheel brake The method according to the invention for displaying the driving state of the vehicle and / or the individual components of the vehicle, in particular the driving state of the brake system, is disclosed.

  The invention will be described in detail with reference to the drawings and the following description. In this case, the features shown in each figure are not restricted to the combinations shown here, but it is possible to use all individual features individually or in other combinations. .

  The wheel brake 1 shown in FIG. 1 has a holder 5 fixed to the vehicle and a brake caliper 2 supported on the holder 5 so as to be movable in the axial direction via a bolt guide 8. In this case, the brake caliper 2 includes a case leg 10 on the vehicle side on the inner side in the axial direction, a case leg 11 on the outer side in the axial direction, and a case bridge 12 that couples them. The inner case leg 10 is provided with an operation device 13 based on an electromechanical functional principle. In order to control the electromechanical operation device 13, a wheel control unit (WCU) 43 is provided in the wheel brake 1. The brake caliper surrounds the brake disc 6, but when the wheel brake is operated, the friction surface 7 of the brake disc 6 receives the action of brake pads provided on both sides.

  The wheel brake 1 is provided with two different light emitting devices 3, 4 in this embodiment. One light emitting device 3 is attached to the case leg 11 of the brake caliper 2, but the second light emitting device 4 in the shape of a ring feels the brake disc 6. In this case, the light emitting device 3 of the brake caliper 2 is integrated with the case leg 11, but the outline of the light emitting device 3 can be seen exclusively in the form of a character string 14. In FIG. 1, the light beam 15 schematically illustrated symbolizes the light emitting device 43 in operation. The second light emitting device 4 is formed as a light emitting hose 16 having a shape and rigidity. The light emitting hose is fixed to the brake caliper 2 at both ends, and follows the contour of the brake disc 6 in a circular shape. The light emitting devices 3 and 4 are electrically connected to the control adjustment unit 43 via the brake caliper 2 and the connection portion 42.

There are various possibilities for how to emit light:
-The entire surface of the light emitting hose 16-in various colors-emits light.
Thus, the brake disc 6 is totally illuminated and visible through a wheel rim not shown here.
-Only the fixed portions 17 and 18 of the light emitting hose 16 emit light.
In this case, the parts 17 and 18 may be provided at different positions, and in particular, the light-emitting parts 17 and 18 change so as to move along the light-emitting hose 16 according to the rotation direction 19 of the brake disk 6. This produces a visual rotational effect 20 of the light emitting device 4, which is particularly impressive when this rotational movement is adapted to the rotational speed of the break disc 6.
A mixed form of the above light emission examples.
In this case, when the brake is not operated, the light emitting hose 16 exhibits a rotational effect based on the fact that the portions 17 and 18 move and emit light in synchronization with the rotation. During the braking operation, the entire light emitting hose is activated, and preferably the light emission intensity is proportional to the magnitude of the braking force.

  In the wheel brake 1 of FIG. 1, a means 21 for additionally cleaning the light emitting device 4 is exemplarily shown. This means has a brush arrangement portion 22 that is preloaded so as to rise in the radial direction by a spring 23 and is coupled to a seesaw type counterweight 24 and is pivotable in the axial direction. When the number of revolutions of the brake disk 6 is low, the brush disposing unit 22 cleans the light emitting device 4, but when the number of revolutions is high, the centrifugal force of the counterweight 24 exceeds the spring load of the spring 23. As a result, the brush arrangement portion 22 turns and is moved out of the action. Therefore, mechanical overload of the light emitting device 4 is prevented.

  FIG. 2 shows another embodiment of the brake caliper 32 of the wheel brake 31 having the light emitting devices 33 and 34. The light emitting device 33 is formed as a fluorescent film 35, which is attached to the brake caliper 32 and covers the brake caliper with a large area. The fluorescent film 35 can be formed in a wide variety, and in this case, a light emitting portion and a non-light emitting portion are provided. The light emitting portion has characteristic shape elements 36, 37, and 38 and a character string 39. In addition, another light-emitting device 34 in the form of two LEDs is mounted on the brake disc side of the brake caliper 32, which light-emitting device is not shown in the drawing, as indicated by the schematic light beam 41. Illuminate at least partially the friction surface of the disc.

  The light emitting devices 33 and 34 can be activated permanently when the vehicle light is connected or according to the operation state of the wheel brake 31. The fluorescent film 35 is preferably activated with a vehicle light, whereas the LED 40 for illuminating the brake disc is controlled only during brake operation, in particular depending on the strength of the brake. If the color of the LED 40 is selected accordingly, an impression can be given as if the brake disc is burning for brake operation.

  3 to 5 show the same configuration of the brake caliper 52 of the wheel brake 51 having the two light emitting devices 53 and 54. In this case, the light emitting device 54 is realized as a light emitting hose 55 used for illuminating a brake disk (not shown) according to the configuration of FIG. A second light-emitting device 53 in the form of a display 57 is attached to the case leg 56 outside the brake caliper 52, and this display can adopt a variable dimming state. Display 57 can be based on a fluorescent film or other illuminant and need not necessarily be formed as an LC display.

  4 and 5 are given as examples of various light emission states. In this case, the display state 57 of the brake caliper 52 shows the operation state of the parking brake of the vehicle. In FIG. 4, the standard operating state of the operated parking brake is indicated by a symbol 58, whereas in FIG. 5, the illustrated symbol 59 indicates a parking brake failure.

  FIG. 6 shows another embodiment of a wheel brake 61 having a light emitting device 63, 64 with a protective shield 69. In this case, the light emitting devices 63 and 64 are integrated with the protective shield. The protective shield 69 has the purpose of preventing the wheel brake 61 from getting dirty or otherwise adversely affected. Further, the protective shield 69 can be used to unify the appearance of the wheel brake 61 and to harmonize the visual overall impression by covering individual parts. In addition to this advantageous dual effect, the protective shield 69 can be formed with a graphical or application, for example, with a name or type designation. In this case, the protective shield 69 is formed so as to cover an essential part of the brake caliper 62 and the holder 65, that is, to form a certain surface of the wheel brake 61 opposite to the vehicle. Since the protective shield 69 accommodates the light emitting devices 63 and 64, these light emitting devices are thermally separated from the brake caliper 62 and the holder 65, and are protected from being overheated. The light emitting devices 63 and 64 shown in FIG. 6 are formed as the fluorescent film 67 and the LED 68 in the same manner as the modification of FIG.

  In general, all the above-mentioned variant embodiments of FIGS. 1 to 6 of wheel brakes according to the invention with light-emitting devices have different operating conditions of the vehicle and / or different components of the vehicle, in particular different operating conditions of the brake system. Is displayed by the light emitting device of the wheel brake. In this case, the vehicle has means for detecting different driving conditions, which are detected and graded. Each of these various operating states corresponds to the respective light emitting state of the light emitting device by means of the storage unit, and the light emitting device is shifted accordingly to this light emitting state. The driving states to be displayed are diverse, for example vehicle light activation, standard brake operation, emergency braking, acceleration, driving without brake operation, parking brake activation, parking brake failure, vehicle via remote control Open / close, vehicle inoperable state, or general warning state. Depending on the driving conditions, the light emitting device provides a visual warning signal, expansion, contraction or constant lighting, blinking, light emitting part movement, or other light effects.

1 shows a first embodiment of a wheel brake with a light emitting device. 4 shows another embodiment of a brake caliper for a wheel brake having a light emitting device. 4 shows another embodiment of a brake caliper for a wheel brake having a light emitting device. Fig. 4 shows the brake caliper according to Fig. 3 in a constant light emission state. Fig. 5 shows the brake caliper according to Fig. 4 in another light-emitting state. The development of a wheel brake having a light emitting device is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheel brake 2 Brake caliper 3 Light-emitting device 4 Light-emitting device 5 Holder 6 Brake disk 7 Friction surface 8 Bolt guide 9 Rotating shaft 10 Case leg part 11 Case leg part 12 Case bridge 13 Operation apparatus 14 Character string 15 Light beam 16 Light emission hose 17 Part 18 part 19 rotational direction 20 rotational effect 21 means for cleaning 22 brush arrangement part 23 spring 24 counterweight 31 wheel brake 32 brake caliper 33 light emitting device 34 light emitting device 35 fluorescent film 36 shape element 37 shape element 38 shape element 39 String 40 LED
41 light beam 42 connecting portion 43 control adjustment unit 51 wheel brake 52 brake caliper 53 light emitting device 54 light emitting device 55 light emitting hose 56 case leg 57 display 58 symbol 59 symbol 61 wheel brake 62 brake caliper 63 light emitting device 64 light emitting device 65 holder 66 brake Disc 67 Fluorescent film 68 LED
69 Protective shield

Claims (14)

  A wheel brake for a vehicle, wherein the wheel brake (1, 31, 51, 61) has a light emitting device (3,4, 33, 34, 53, 54, 63, 64).   The light emitting device (3, 4, 33, 34, 53, 54, 63, 64) is arranged in a non-rotatable part of the wheel brake (1, 31, 51, 61). Wheel brake described in.   Wheel brake according to claim 2, characterized in that the non-rotatable part has a brake caliper (2, 32, 52, 62), which surrounds the brake disc (6, 66) in the mounted state. .   4. A wheel brake according to claim 3, characterized in that the multidimensional contour of the brake caliper (32) is at least partially replicated by imprinting the geometric shape of the light emitting device (33).   The wheel brake according to any one of claims 1 to 4, characterized in that the three-dimensional indicia of the light emitting device (4, 54) at least partially coincide with the shape of the brake disc (6).   6. A light-emitting device (4) comprising light-emitting parts (17, 18), which light-emitting parts rotate at least partly about the axis of rotation (9) of the brake disc (6). The wheel brake described.   The wheel brake according to claim 2, wherein the non-rotatable part has a brake carrier of a drum brake, and the light emitting device is arranged on the brake carrier.   The light emitting device (3, 4, 33, 34, 53, 54, 63, 64) is connected to at least one light emitting hose (16, 55) and / or fluorescent film (35, 67) and / or display (57) and / or The wheel brake according to claim 1, further comprising an LED (40, 68).   Since the light emitting device (3, 53, 63) functions as an identification mark, it is formed as a graphic character element and / or shape element and / or image element (14, 36, 37, 39, 58, 59). The wheel brake according to any one of claims 1 to 8.   Wheel brake according to any one of the preceding claims, characterized in that the light emitting device (63) is thermally separated from the wheel brake (61).   11. The wheel brake according to claim 10, wherein the light emitting device (63) is provided on a protective shield (69) of the brake caliper (62).   1. The wheel brake (1) comprises means (21) for cleaning that is suitable for releasing the light-emitting device (4) from dirt and thereby ensuring the luminous power. The wheel brake according to any one of 11.   Based on the different light-emitting states of the light-emitting devices (3, 4, 33, 34, 53, 54, 63, 64), the various driving states of the vehicle and / or the individual components, in particular the various driving states of the brake system. The wheel brake according to any one of claims 1 to 12, wherein can be displayed. In a method for displaying the driving state of a vehicle and / or individual components of the vehicle, in particular the driving state of the brake system, comprising means for the vehicle or the brake system itself to detect different driving states,
This method
-Steps for detecting and classifying the driving state-Corresponding to the driving state of the light emitting device (3, 4, 33, 34, 53, 54, 63, 64) of the wheel brake (1, 31, 51, 61) Taking a constant light emission state.

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