Method for operating an interior lighting device for a motor vehicle, interior lighting device for a motor vehicle and motor vehicle

• US 10,293,746 B2
• Filed: 01/03/2017
• Issued: 05/21/2019
• Est. Priority Date: 01/03/2017
• Status: Active Grant

• Current Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Original Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Inventors: Heinrich, Jurgen, Allouis, David, Kowatzki, Stefan, Wormann, Wolfgang
• Primary Examiner(s): Hammond, Crystal L
• Application Number:
  US15/396,966
• Publication Number:
  US 20180186285A1
• Time in Patent Office: 868 Days
• Field of Search: None
• CPC Class Codes: B60Q 3/20 for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments lighting for dashboards B60Q3/10
• CPC Class Codes: B60Q 3/76 for spotlighting, e.g. reading lamps spotlighting on or for specific fittings B60Q3/20; spotlighting in mass transit vehicles B60Q3/44
• CPC Class Codes: B60Q 3/82 Switches specially adapted for vehicle interior lighting, e.g. switching by tilting the lens
• CPC Class Codes: G01J 1/00 Photometry, e.g. photographic exposure meter spectrophotometry G01J3/00; specially adapted for radiation pyrometry G01J5/00 ; exposure meters built in cameras G03B17/06
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Method for operating an interior lighting device for a motor vehicle, comprising a lighting device and a sensor device, which senses a position of an operator control object for the lighting device in its sensing area, wherein the lighting device is controlled on the basis of sensor data from the sensor device, wherein the lighting device has multiple actuatable lighting units that each have an associated local section defined in the sensing area, wherein when an operator control object is detected in a local section, the associated lighting unit is activated and activated lighting units not associated with the local section are deactivated.

Claims

1. A method for operating an interior lighting device for a motor vehicle, the method comprising:

providing a lighting device having a plurality of actuatable lighting units and a sensor device having a plurality of sensor units with overlapping sensing regions for sensing a position of an operator control object,

dividing a sensing area of the sensor device into a plurality of non-overlapping local sections and associating at least one local section with each lighting unit,

sensing the operator control object, determining the operator control object is within a first local section of the non-overlapping local sections, and, as a result, activating the lighting unit associated with the first local section and deactivating the lighting units not associated with the first local section.

2. The method according to claim 1, further comprising:

sensing multiple positions of the operator control object in succession that form a position trace, comparing the position trace to a list of predefined position traces, and, if the position trace matches, activating or deactivating a plurality of the lighting units according to a stipulated control action associated with the position trace.

3. The method according to claim 2, wherein the stipulated control action activates all lighting units or deactivates all lighting units.

4. The method according to claim 1, wherein the lighting units are activated or deactivated in accordance with a predefined brightness time profile independent of the position or speed of the operator control object.

5. The method according to claim 1,

wherein sensing the operator control object includes receiving sensor data from all of the plurality of sensor units in the interior lighting device to ascertain a piece of position information describing the position of the operator control object,

wherein determining the operator control object is within a first local section of the non-overlapping local sections includes evaluating the piece of position information derived from all of the plurality of sensor units in the interior lighting device.

6. An interior lighting device for a motor vehicle comprising:

a lighting device having a plurality of actuatable lighting units,

a sensor device having multiple sensor units with overlapping sensing regions configured for sensing a position of an operator control object, wherein the sensor device has a sensing area comprising a plurality of non-overlapping local sections, and

a control device configured for controlling the lighting device based on sensor data obtained from the sensor device,

wherein each actuatable lighting unit is associated with one or more of the plurality of non-overlapping local sections, wherein the control device is configured to receive the sensor data, determine the operator control object is within a first local section of the non-overlapping local sections, and, as a result, activate the lighting unit associated with the first local section and deactivate the lighting units not associated with the first local section.

7. The interior lighting device according to claim 6, wherein the lighting units have different radiation angles or illumination areas.

8. The interior lighting device according to claim 6, wherein the sensor device is arranged physically adjacently to the lighting device.

9. The interior lighting device according to claim 6, wherein individual sensing areas of the sensor units form the sensing area.

10. The interior lighting device according to claim 9, wherein at least two lighting units and at least two sensor units are arranged in alignment.

11. The interior lighting device according to claim 9,

wherein the multiple sensor units are arranged in a circular pattern surrounding the lighting device.

12. The interior lighting device according to claim 11,

wherein there are a greater number of non-overlapping local sections than there are multiple sensor units.

13. The interior lighting device according to claim 11,

wherein there are a lesser number of non-overlapping local sections than there are multiple sensor units.

14. The interior lighting device according to claim 6, further comprising at least one display element connected to the control device and associated with at least one lighting unit, wherein the at least one display element is configured to activate when the at least one lighting unit is activated.

15. A motor vehicle, comprising at least one interior lighting device according to claim 6.

16. The interior lighting device according to claim 6,

wherein the control device is configured to receive sensor data from all of the multiple sensor units in the interior lighting device to ascertain a piece of position information describing the position of the operator control object, wherein the piece of position information is used to determine whether the operator control object is within a first local section of the non-overlapping local sections.