Braking intensity indicator system including selective adjustment of brake pedal light and related methods

Patent metadata

Field	Value
Publication number	US-9409513-B2
Application number	US-201414585374-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Dec 30, 2014
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

A braking intensity indicator system for a vehicle of a type that includes a foot operated brake pedal and at least one brake light may include a proximity sensor to be associated with the brake pedal and a controller. The controller may be configured to cooperate with the proximity sensor to determine a plurality of brake pedal positions versus time during foot operation of the brake pedal, and selectively adjust an intensity of the at least one brake light based upon the determined plurality of brake pedal positions versus time.

First claim

That which is claimed is:

1. A braking intensity indicator system for a vehicle of a type comprising a foot operated brake pedal and at least one brake light, the braking intensity indicator system comprising:
a proximity sensor to be associated with the brake pedal; and
a controller configured to
cooperate with said proximity sensor to determine a plurality of brake pedal positions versus time during foot operation of the brake pedal, and
selectively adjust an intensity of the at least one brake light based upon the determined plurality of brake pedal positions versus time.

2. The braking intensity indicator system of claim 1 wherein said proximity sensor comprises an optical proximity sensor.

3. The braking intensity indicator system of claim 1 wherein said proximity sensor comprises an infrared (IR) emitter, and an IR sensor configured to receive reflected IR radiation from said IR emitter.

4. The braking intensity indicator system of claim 3 wherein said IR emitter comprises an IR laser emitter.

5. The braking intensity indicator system of claim 3 wherein said proximity sensor further comprises an ambient light sensor; and wherein said controller is configured to adjust a dynamic range of said IR sensor based upon the ambient light.

6. The braking intensity indicator system of claim 1 wherein said proximity sensor comprises a time-of-flight sensor.

7. The braking intensity indicator system of claim 1 wherein said controller is configured to determine an acceleration of the brake pedal based upon the plurality of brake pedal positions versus time.

8. The braking intensity indicator system of claim 7 wherein said controller is configured to selectively adjust the intensity of the at least one brake light based upon the determined acceleration exceeding a threshold.

9. The braking intensity indicator system of claim 1 wherein said proximity sensor comprises at least one mounting element for mounting to the brake pedal.

10. The braking intensity indicator system of claim 1 wherein said proximity sensor comprises at least one mounting element for mounting in the footwell adjacent the brake pedal.

11. The braking intensity indicator system of claim 1 wherein said controller is configured to selectively adjust the intensity of the at least one brake light by at least one of adjusting a brightness, changing a color, changing a flashing frequency, and operating an additional brake light.

12. A braking intensity indicator system for a vehicle of a type comprising a foot operated brake pedal and at least one brake light, the braking intensity indicator system comprising:
an optical proximity sensor to be associated with the brake pedal; and
a controller configured to
cooperate with said proximity sensor to determine a plurality of brake pedal positions versus time during foot operation of the brake pedal,
determine an acceleration of the brake pedal based upon the plurality of brake pedal positions versus time, and
selectively adjust an intensity of the at least one brake light based upon the determined acceleration.

13. The braking intensity indicator system of claim 12 wherein said proximity sensor comprises an infrared (IR) emitter, and an IR sensor configured to receive reflected IR radiation from said IR emitter.

14. The braking intensity indicator system of claim 13 wherein said IR emitter comprises an IR laser emitter.

15. The braking intensity indicator system of claim 13 wherein said proximity sensor further comprises an ambient light sensor; and wherein said controller is configured to adjust a dynamic range of said IR sensor based upon the ambient light.

16. The braking intensity indicator system of claim 12 wherein said proximity sensor comprises a time-of-flight sensor.

17. A method of selectively adjusting an intensity of at least one brake light of a vehicle, the method comprising:
using a controller to
cooperate with a proximity sensor associated with the foot operated brake pedal of the vehicle to determine a plurality of brake pedal positions versus time during foot operation of the brake pedal, and
selectively adjust the intensity of the at least one brake light based upon the determined plurality of brake pedal positions versus time.

18. The method of claim 17 wherein the proximity sensor comprises an optical proximity sensor.

19. The method of claim 17 wherein the proximity sensor comprises an infrared (IR) emitter, and an IR sensor configured to receive reflected IR radiation from the IR emitter.

20. The method of claim 19 wherein the proximity sensor further comprises an ambient light sensor; and using the controller comprises using the controller to adjust a dynamic range of the IR sensor based upon the ambient light.

21. The method of claim 17 wherein the proximity sensor comprises a time-of-flight sensor.

22. The method of claim 17 wherein using the controller comprises using the controller to determine an acceleration of the brake pedal based upon the plurality of brake pedal positions versus time.

23. The method of claim 22 wherein using the controller comprises using the controller to selectively adjust the intensity of the at least one brake light based upon the determined acceleration exceeding a threshold.

Assignees

• St Microelectronics Inc

Inventors

• Weiner Kenneth
• Bloomfield John

Classifications

• B60Q1/44

  for indicating braking action {or preparation for braking, e.g. by detection of the foot approaching the brake pedal} · CPC title

• B60Q1/441

  Electric switches operable by the driver's pedals · CPC title

• B60Q1/444 Primary

  with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication (B60Q1/1407, B60Q1/442, B60Q1/447 take precedence) · CPC title