LIGHTING SYSTEM FOR A MOTOR VEHICLE AND MOTOR VEHICLE HAVING A LIGHTING SYSTEM

Abstract

In a motor vehicle having motor vehicle exterior lighting devices and an operator control device, the following lighting modes of the motor vehicle exterior lighting devices can be set: deactivated, parking light, daytime running light, forwarding lighting, and automatic mode in which the motor vehicle exterior lighting devices are operated by an automatic forward light controller. The operator control device has a single monostable operator control element by which the lighting modes can be set; or the operator control device has a monostable operator control element by which the deactivated, parking light, daytime running light and forward lighting lighting modes can be set. The operator control device has a pushbutton key or a toggle lever by which the automatic mode can be set.

Claims

1. A lighting system (12) for a motor vehicle (10), having a motor vehicle exterior lighting device (14,16) and an operator control device (22) by means of which the following lighting modes of the motor vehicle exterior lighting device (14, 16) can be set: deactivated, parking light, daytime running light, forward lighting and automatic mode, in which the motor vehicle exterior lighting device (14, 16) is operated by means of an automatic forward light controller, characterized in that the operator control device (22) has a monostable operator control element by means of which the deactivated, parking light, daytime running light and forward lighting lighting modes can be set, wherein the operator control device (22) has a further operator control element in the form of a pushbutton key or a toggle lever by means of which the automatic mode can be set.

2. The lighting system (12) as claimed in claim 1, characterized in that the lighting system (12) is designed to activate the automatic mode as soon as it has been sensed on the basis of at least one criterion that a new driving event and/or a change of driver have/has taken place.

3. The lighting system (12) as claimed in claim 1 or 2, characterized in that the lighting system (12) is designed to activate the automatic mode as soon as the ignition (28) of the motor vehicle (10) has been activated.

4. The lighting system (12) as claimed in claim 3, characterized in that the lighting system (12) is designed to activate the automatic mode only when one of the parking light, daytime running light, forward lighting or automatic mode lighting modes was activated at the time of a previous deactivation of the ignition (28) of the motor vehicle (10).

5. The lighting system (12) as claimed in one of the preceding claims, characterized in that the lighting system (12) is designed to activate the automatic mode as soon as the motor vehicle (10) first exceeds a predefined speed, in particular 10 km/h, after activation of the ignition (28).

6. The lighting system (12) as claimed in one of the preceding claims, characterized in that the lighting system (12) is designed to infer a new driving event and/or a change of driver, in particular, when the ignition (28) of the motor vehicle (10) is still deactivated, on the basis of acquired information about opening or closing a door of the motor vehicle (10).

7. The lighting system (12) as claimed in one of the preceding claims, characterized in that the lighting system (12) is designed to prevent, as a function of the speed of the motor vehicle (10), the ambient brightness and/or the motor mode of the motor vehicle (10), the activation of specific lighting modes by actuating the operator control device (22).

8. The lighting system (12) as claimed in claim 7, characterized in that the lighting system (12) is designed to control a display device (36) of the motor vehicle (10) in such a way that only the lighting modes which can be selected by actuating the operator control device (22) are displayed.

9. The lighting system (12) as claimed in claim 8, characterized in that the lighting system (12) is designed to control the display device (36) in such a way that the lighting modes which can be selected are displayed only when it is sensed that the operator control device (22) is touched.

10. The lighting system (12) as claimed in one of the preceding claims, characterized in that the operator control device (22) is of touch-sensitive and/or pressure-sensitive design.

11. A motor vehicle (10) having a lighting system (12) as claimed in one of the preceding claims.

12. A lighting system for a motor vehicle, comprising: an automatic forward light controller; a motor vehicle exterior lighting device operated by the automatic forward light controller in an automatic mode of the lighting system; and an operator control device having a monostable operator control element setting lighting modes of deactivated, parking light, daytime running light and forward lighting, and having one of a pushbutton key and a toggle lever by which the automatic mode is set.

13. The lighting system as claimed in claim 12, wherein the lighting system activates the automatic mode upon detection of at least one criterion indicating at least one of a new driving event and a change of driver has occurred.

14. The lighting system as claimed in claim 1, wherein the motor vehicle has an ignition switch, and wherein the lighting system activates the automatic mode upon activation of the ignition switch of the motor vehicle.

15. The lighting system as claimed in claim 14, wherein the lighting system activates the automatic mode only when one of the parking light, the daytime running light, the forward lighting and the automatic mode was activated at an immediately previous deactivation of the ignition switch of the motor vehicle.

16. The lighting system as claimed in claim 12, wherein the lighting system activates the automatic mode when the motor vehicle first exceeds a predefined speed after activation of the ignition switch.

17. The lighting system as claimed in claim 16, wherein the predefined speed is 10 km/h.

18. The lighting as claimed in claim 12, wherein the motor vehicle has doors and an ignition switch, and wherein the lighting system infers at least one of a new driving event and a change of driver, when the ignition switch of the motor vehicle is deactivated, when at least one of opening and closing at least one of the doors of the motor vehicle is detected.

19. The lighting system as claimed in claim 12, wherein the lighting system prevents selection of specific lighting modes by the operator control device based on at least one of a speed of the motor vehicle, ambient brightness and a motor mode of the motor vehicle.

20. The lighting system as claimed in claim 19, wherein the motor vehicle has a display device, and wherein the lighting system controls the display device of the motor vehicle so that only selectable lighting modes which can be selected by the operator control device are displayed.

21. The lighting system as claimed in claim 20, wherein the lighting system controls the display device so that the selectable lighting modes are displayed only upon sensing that the operator control device has been touched.

22. The lighting system as claimed in claim 12, wherein the operator control device includes at least one of a touch-sensitive and a pressure-sensitive input surface.

23. A motor vehicle, comprising: a lighting system, including an automatic forward light controller; a motor vehicle exterior lighting device operated by the automatic forward light controller in an automatic mode of the lighting system; and an operator control device having one of a pushbutton key and a toggle lever by which the automatic mode is set, and having a monostable operator control element setting lighting modes of deactivated, parking light, daytime running light and forward lighting.

24. The motor vehicle as claimed in claim 23, wherein the lighting system activates the automatic mode upon detection of at least one criterion indicating at least one of a new driving event and a change of driver has occurred.

25. The motor vehicle as claimed in claim 23, further comprising an ignition switch, and wherein the lighting system activates the automatic mode upon activation of the ignition switch of the motor vehicle.

26. The motor vehicle as claimed in claim 25, wherein the lighting system activates the automatic mode only when one of the parking light, the daytime running light, the forward lighting and the automatic mode was activated at an immediately previous deactivation of the ignition switch.

27. The motor vehicle as claimed in claim 23, wherein the lighting system activates the automatic mode when the motor vehicle first exceeds a predefined speed after activation of the ignition switch.

28. The motor vehicle as claimed in claim 23, further comprising doors and an ignition switch, and wherein the lighting system infers at least one of a new driving event and a change of driver when the ignition switch is deactivated when at least one of opening and closing at least one of the doors is detected.

29. The motor vehicle as claimed in claim 23, wherein the lighting system prevents selection of specific lighting modes by the operator control device based on at least one of a speed of the motor vehicle, ambient brightness and a motor mode of the motor vehicle.

30. The motor vehicle as claimed in claim 30, further comprising a display device, and wherein the lighting system controls the display device of the motor vehicle so that only selectable lighting modes which can be selected by the operator control device are displayed.

31. The motor vehicle as claimed in claim 31, wherein the lighting system controls the display device so that the selectable lighting modes are displayed only upon sensing that the operator control device has been touched.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] These and other aspects and advantages will become more apparent and more readily appreciated from the following description of the exemplary embodiments, taken in conjunction with the accompanying drawings of which:

[0024] FIG. 1 is a block diagram of a motor vehicle having a lighting system;

[0025] FIG. 2 is a front view of an operator control device of the lighting system by which an automatic forward lighting controller of the lighting system can be activated and deactivated, as well as two operator control elements for activating fog lamps and one rear fog light;

[0026] FIG. 3 is a schematic illustration of a combination instrument of the motor vehicle, wherein selectable lighting modes are displayed;

[0027] FIG. 4 is a further schematic illustration of the combination instrument which includes a switch-off possibility of the lighting system; and

[0028] FIG. 5 is a partial perspective view of an alternative embodiment of the operator control device and of the operator control element for actuating the rear fog lights and the fog lamps, wherein these elements are integrated into a decorative strip of the motor vehicle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0029] Reference will now be made in detail to the preferred embodiments, examples of which are illustrated in the accompanying drawings, wherein identical or functionally identical elements are provided with the same reference symbols in the figures.

[0030] A motor vehicle 10 is shown in a schematic illustration in FIG. 1. The motor vehicle 10 has a lighting system 12 inside the dashed line. The lighting system 12 has a motor vehicle exterior lighting device (not denoted in more detail) which includes headlights 14 and rear lights 16. Furthermore, the lighting system 12 includes an automatic forward lighting controller 18, a control device 20 and an operator control device 22.

[0031] The vehicle headlights 14 and optionally also the rear lights 16 can be operated in an automatic mode by the automatic forward lighting controller 18. In other words, the automatic forward lighting controller 18 makes available an automatic lighting system so that in the automatic mode the external vehicle lighting is controlled automatically as a function of ambient conditions and no longer directly by the driver. The automatic forward lighting controller 18 is coupled for this purpose to a light sensor 24 and to a rain sensor 26, with the result that the automatic forward lighting controller 18 receives corresponding information about the ambient conditions of the motor vehicle 10 and can control the front headlights and the rear lights according to requirements.

[0032] The lighting system 12 is designed to activate the automatic mode as soon as it has been sensed on the basis of at least one criterion that a new driving event and/or a change of driver has taken place. The control device 20 can be designed to place the motor vehicle exterior lighting device, that is to say the front headlights 14 and optionally also the rear lights 16 in the automatic mode as soon as the ignition 28 of the motor vehicle 10 has been activated. The lighting system 12 or the control device 20 can additionally be designed to activate the automatic mode only when one of the parking light, daytime running light, forward lighting or automatic mode lighting modes was activated at the time of a previous activation of the ignition 28 of the motor vehicle 10. In other words, the automatic mode is not activated automatically when the ignition 28 is activated if, for example, a driver of the motor vehicle 10 should have manually deactivated the front headlights 14 and rear lights 16 when the motor vehicle 10 is shut down.

[0033] FIG. 2 shows a first embodiment of the operator control device 22. The operator control device 22 is embodied here as a single toggle lever by which the following lighting modes of the motor vehicle exterior lighting device can be set: deactivated, parking light, daytime running light, forward lighting and automatic mode, in which the motor vehicle exterior lighting device is operated by the automatic forward lighting controller 18. The operator control device 22 which is embodied as a toggle lever is of monostable design here. That is to say the toggle lever is always returned automatically into a home position as soon as a force, for example upward or downward, is no longer applied to the toggle lever. The toggle lever can be embodied, for example, in such a way that it can be deflected from the stable home position either just in one direction or else in two directions. Furthermore, two further operator control elements 30, 32 are shown which are also embodied here as toggle levers and serve to activate or deactivate fog lamps and a rear fog light. The toggle lever 22 can have a touch-sensitive surface 34 which, when touched causes the lighting modes which can be selected by actuating the toggle lever 22 to be displayed automatically.

[0034] Alternatively it is also possible for the operator control device 22 and the two further operator control elements 30, 32 to be embodied as mechanical pushbutton keys. The mechanical pushbutton keys are also of monostable design in this case. The pushbutton keys therefore always return automatically to a home position as soon as a force is no longer applied to the pushbutton keys.

[0035] In addition, it is also possible for the operator control device 22 and the two further operator control elements 30, 32 to be embodied in the form of an actuator switch panel. The actuator switch panel has here a jointless optical system, wherein the operator control device 22 and the further operator control elements 30, 32 are designed to provide haptic feedback as soon as they are actuated by a user. The operator control device 22, that is to say in this case the respective keypad in the actuator control panel, are assigned corresponding displays here which serve as status feedback. The currently activated lighting mode can be displayed by the displays, that is to say, for example that the parking light, the dipped headlight or the automatic mode is currently activated.

[0036] In addition, it is also possible for the operator control device 22 to be embodied in the form of a rotary knob or rotary ring, wherein a pushbutton key may be arranged inside the rotary knob. The operator control device 22 which is embodied as a rotary knob is in turn of monostable design. This means that the rotary knob always returns automatically into a home position as soon as a force is no longer applied to the rotary knob, for example counter to or in the clockwise direction. Using the rotary knob, it is possible to select the various lighting modes by turning the latter e.g. counter to or in the clockwise direction. In other words, the rotary knob can be rotated unidirectionally or bidirectionally. The automatic mode can be activated by the pushbutton key which is arranged centrally inside the rotary knob. The pushbutton key is assigned a status display here which indicates whether the automatic mode is currently activated or deactivated. As soon as the rotary knob is actuated when the automatic mode is activated, the automatic mode is automatically deactivated and another lighting mode, corresponding to the actuation of the rotary knob, is actuated. A pop-up display indicates here the currently activated lighting mode in the form of a status information item. The rotary knob can also be of touch-sensitive design. As soon as the rotary knob is touched, those lighting modes which can currently be selected are indicated by a display device in each case.

[0037] FIG. 3 illustrates a combination instrument 36 of the motor vehicle 10. The motor vehicle 10 is moved along at a speed of higher than 10 km/h in the present case. As soon as the driver touches the operator control device 22, it is indicated to him on the combination instrument 36 that in the automatic mode he could still select the forward lighting manually. Further lighting modes are not offered to him in this case. Alternatively, for example depending on the legislation, it may also be provided that the driver can also deactivate the headlights 14 and/or rear lights 16 by actuating the toggle lever 22. Depending on the configuration of the operator control device 22, the selectable lighting modes can be indicated vertically or horizontally in the combination instrument 36. If the operator control device 22 is embodied as a toggle lever the display may be vertical. If the operator control device 22 is embodied as a pushbutton key or rotary knob, the display is may be horizontal.

[0038] The combination instrument 36 is illustrated again in FIG. 4. Here, the engine of the motor vehicle 10 is not yet started, with the result that only the possibilities of making available parking light and deactivating the vehicle exterior lighting device are provided as selection possibilities in addition to the automatic mode.

[0039] As already mentioned, the lighting system 12 is designed to activate the automatic mode as soon as it has been sensed on the basis of at least one criterion that a new driving event and/or a change of driver has taken place. One criterion here can be whether the ignition system 28 of the motor vehicle 10 has currently been activated. The lighting system 12 can also be embodied in such a way that it activates the automatic mode as soon as the motor vehicle 10 first exceeds a predefined speed, in particular 10 km/h, after the activation of the ignition. A further indication for the detection of a new driving event or a change of driver can also be a corresponding door signal. For example, the lighting system 12 can be designed to activate the automatic mode as soon as a door of the motor vehicle 10 has been opened or closed when the ignition of the motor vehicle 10 is still deactivated. In addition, corresponding seat-occupation sensors can also be used to detect whether a driver has currently exited the motor vehicle 10 or entered it again.

[0040] The lighting system 12 is also designed to prevent the activation of specific lighting modes by actuating the operator control device 22 as a function of the speed of the motor vehicle and/or the ambient brightness and as a function of deactivation or activation of the engine. As already mentioned, the lighting system 12 is designed to control a display device, according to the embodiments in FIGS. 3 and 4 the combination instrument 36, in such a way that only the lighting modes which can be selected by actuating the operator control device 22 are displayed.

[0041] FIG. 5 shows an alternative embodiment of the operator control device 22. As is apparent, the operator control device 22 and the further operator control elements 30, 32 are integrated in the region of a decorative strip 38 of the motor vehicle. The operator control device 22 is embodied here as a single pushbutton key by which the different lighting modes of the motor vehicle exterior lighting device can be set. Alternatively, the pushbutton key 22 could also be arranged above the decorative strip 38. The pushbutton key 22 can be embodied here, for example, as a jointless pushbutton key with a capacitive sensor system. In addition, the pushbutton key 22 can also have a corresponding pressure detector and haptic feedback. In the present embodiment, all the lighting functions apart from the fog light functions can be set by the single pushbutton key 22. The operator control elements 30, 32 and the pushbutton key 22 each have status lights 40 by which a respective lighting mode can be signaled. In the present case, the status light 40 of the pushbutton key 22 merely indicates whether the automatic mode is set or not. Furthermore, the pushbutton key 22 has a further display 42 by which a status feedback is indicated. It indicates which lighting mode is currently activated apart from or in addition to the automatic mode, that is to say whether the parking light, the dipped headlights or the like are activated.

[0042] A description has been provided with particular reference to preferred embodiments thereof and examples, but it will be understood that variations and modifications can be effected within the spirit and scope of the claims which may include the phrase “at least one of A, B and C” as an alternative expression that means one or more of A, B and C may be used, contrary to the holding in Superguide v. DIRECTV, 358 F3d 870, 69 USPQ2d 1865 (Fed. Cir. 2004).