Vehicle driving aid system for reducing light contrast

Patent metadata

Field	Value
Publication number	US-10081229-B2
Application number	US-201515531261-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Nov 27, 2014
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

The present invention relates to a motor vehicle driving aid system, the vehicle comprising a lighting device intended to illuminate a road scene at the front of the vehicle. The vehicle includes means for detecting an oncoming vehicle, control means receiving information from the detection means, and means for reducing dazzling of the driver of the motor vehicle caused by the light emitted by the oncoming vehicle. These means are controlled by the control means, and means for the management of the lighting device designed to increase the illumination of the lighting device of the vehicle and to avoid dazzling of the driver of the oncoming vehicle, these means being controlled by the control means.

First claim

The invention claimed is:

1. A motor vehicle driving aid system, a vehicle comprising a lighting device, intended to illuminate a road scene at a front of the vehicle, the vehicle further comprising means for detecting an oncoming vehicle, the aid system comprising:
control means receiving information from the detection means,
means for reducing dazzling of a driver of the motor vehicle caused by light emitted by the oncoming vehicle, the means for reducing being controlled by the control means,

means for managing the lighting device designed to increase the illumination of the lighting device of the vehicle and to avoid dazzling of the driver of the oncoming vehicle, the means for managing being controlled by the control means.

2. The aid system according to claim 1 , wherein the lighting device is controlled by a pulsed signal generated by the control means, and in that the means for reducing dazzling comprise at least one means equipped with obturators controlled by said pulsed signal in synchronization with the lighting device.

3. The aid system according to claim 2 , wherein the means equipped with obturators is a pair of spectacles and/or a windshield of said vehicle and/or a sun visor of said vehicle.

4. The aid system claim 2 , wherein the obturators comprise liquid crystals, an orientation of which is modified by the pulsed signal.

5. The aid system according to claim 1 , wherein the detection means are designed to detect presence and position of one or more oncoming vehicles, the control means adapting an illumination zone as a function of said presence and position of the oncoming vehicle so as not to dazzle the driver of the oncoming vehicle.

6. The aid system according to claim 1 , wherein the detection means comprise a camera facing the exterior and toward the front of the vehicle.

7. The aid system according to claim 5 , wherein, in the illumination zone, illumination is minimized in a sub-zone where the oncoming vehicle is located.

8. The aid system according to claim 7 , wherein, in the illumination zone, illumination is increased outside the sub-zone where the oncoming or following vehicle is located.

9. The aid system as according to claim 1 , wherein the lighting device comprises at least one light source of electroluminescent diode type.

10. A motor vehicle comprising the lighting device intended to illuminate a road scene at the front of the vehicle, the means for detecting an oncoming vehicle, and a driving aid system as claimed in claim 1 .

11. The aid system according to claim 3 , wherein the obturators comprise liquid crystals, an orientation of which is modified by the pulsed signal.

12. The aid system according to claim 11 , wherein the detection means are designed to detect presence and position of one or more oncoming vehicles, the control means adapting an illumination zone as a function of said presence and position of the oncoming vehicle so as not to dazzle the driver of the oncoming vehicle.

13. The aid system according to claim 2 , wherein the detection means are designed to detect presence and position of one or more oncoming vehicles, the control means adapting an illumination zone as a function of said presence and position of the oncoming vehicle so as not to dazzle the driver of the oncoming vehicle.

14. The aid system according to claim 3 , wherein the detection means are designed to detect presence and position of one or more oncoming vehicles, the control means adapting an illumination zone as a function of said presence and position of the oncoming vehicle so as not to dazzle the driver of the oncoming vehicle.

15. The aid system according to claim 11 , wherein the detection means comprise a camera facing the exterior and toward the front of the vehicle.

16. The aid system according to claim 2 , wherein the detection means comprise a camera facing the exterior and toward the front of the vehicle.

17. The aid system according to claim 12 , wherein, in the illumination zone, illumination is minimized in a sub-zone where the oncoming vehicle is located.

18. The aid system according to claim 17 , wherein, in the illumination zone, illumination is increased outside the sub-zone where the oncoming or following vehicle is located.

19. The aid system as according to claim 11 , wherein the lighting device comprises at least one light source of electroluminescent diode type.

20. A motor vehicle comprising the lighting device intended to illuminate a road scene at the front of the vehicle, the means for detecting an oncoming vehicle, and a driving aid system as claimed in claim 2 .

Assignees

• Valeo Vision

Inventors

• Hue David
• El Idrissi Hafid

Classifications

• B60J3/04 Primary

  adjustable in transparency · CPC title

• G02C7/101

  having an electro-optical light valve (electro-optical elements per se G02F) · CPC title

• B60Q1/143

  combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers · CPC title

• B60Q2300/056

  Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind · CPC title

• G02F1/137

  characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering · CPC title