Apparatus and method for controlling light distribution of headl

Details Apparatus and method for controlling light distribution of headl Apparatus and method for controlling light distribution of headl

1993-08-27

1997-08-26

Quach, Y. My

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362 66, B60Q 104

Patent

active

056604548

ABSTRACT:
An apparatus for controlling the light distribution of a headlamp includes a vehicle speed sensor; a calculating device for estimating a position to be reached by the vehicle after a predetermined time along a forward roadway of the vehicle on the basis of a vehicle speed and information representing a route of the forward roadway, and for calculating a direction of illumination or a range of illumination by the headlamp so that light is illuminated onto an estimated position; and a control device for controlling the direction of illumination or the range of illumination by the headlamp on the basis of a result of calculation by the calculating device. The light is illuminated onto a position, which is located ahead of the vehicle and which is viewed by a driver, for obtaining an optimum light distribution for a field of view of the driver.

REFERENCES:
patent: 4768135 (1988-08-01), Kretschmer et al.
patent: 4870545 (1989-09-01), Hatanaka
patent: 4891559 (1990-01-01), Matsumoto et al.
patent: 4967319 (1990-10-01), Seko
patent: 5010457 (1991-04-01), Ohmamyuda et al.
patent: 5016155 (1991-05-01), Chevance
patent: 5193894 (1993-03-01), Lietar et al.
patent: 5331251 (1994-07-01), Marois

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