11-03-2016, 07:47 AM
I want this ppt moving headlight with steering
thanksful
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steering controlled headlight ppt
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I want this ppt moving headlight with steering
thanksful
11-03-2016, 02:01 PM
steering controlled headlight ppt
ABSTRACT
The topic of this project is steering controlled (or directional) headlights, that are usually a separate set of headlights fitted to road vehicles beside the usual low beam/high beam headlights and their feature is that they turn with the steering, so that the driver of the vehicle can see the bend, what he is actually turning into. These type of headlights appeared on production cars in the 1920’s and are still around nowadays, but not very popular, although they make night time driving safer. The most famous car which featured these lights was the Citroen DS (1955-1975), introduced on the 1968 Paris Motor Show. The headlights can be connected to the steering linkage by means of rods or cables, operated hydraulically by the power steering or nowadays electronically adjusted, even controlled by satellite navigation system. Our project is to make new and modern ―Directional Headlights‖ in efficient manner by increasing the light angle. Directional headlights are those headlights that provide improved lighting especially for cornering. There are automobiles that have their headlights directly connected to the steering mechanism so that its lights will follow the movement of the front wheels. Our project comprises Cam and Follower mechanism, Gear mechanism and spring mechanism. Cam and Follower mechanism is used to turn the head lights to right or left direction, Gear mechanism is used to transmit motion and to reduce the no of rotations from steering rod to cam shaft. Spring mechanism is used to bring back the follower and head light bracket to its initial position. According to our project, when the steering steers to the right, the light bracket at right alone steers to right using cam & follower mechanism and reduction gears & vice versa. At the same time the left bracket remains stand still due to the dwell period of the cam. During the return stroke of cam, the spring mechanism is used to bring the bracket and follower to its initial position. The reduction gears are used to turn the brackets to the required angle respective to the steering rotation.
INTRODUCTION
The present invention relates to headlights of an automobile, more particularly to a direction turning device for headlights of an automobile which enables to turn direction synchronously with the rotation of the steering and hence increasing the safety for driving at night or in the darkness. In the known technology of the prior art, a headlight of an automobile has a fixed line of emission which is aligned with the front direction of the automobile. Although the effects of "high beam" or "low beam" can be achieved by adjusting the angle of elevation of the headlight, the direction of emission is not adjustable as to the left or right. When the road curves or turns, the corner on time when the car turns, thereby creating a dead angle of illumination and such lack of visibility poses danger in driving at night or in darkness. Therefore, it is highly desirable to invent a device to solve this problem and such device is of high utility. An object of the present invention is to provide a direction turning device for a headlight of an automobile which renders to emission direction of a headlight of an automobile in synchronization with steering and thus increases the illuminated area upon changes of direction of the automobile when the automobile makes turns. In ancient Directional headlights, when the steering steers to right or left direction, then both the right and left headlights will steer to the perspective directions. It results in altering the optical axis of the head light to the vehicle speed and the front road-shape. But according to our project, when the steering steers to right then the right side of the headlight bracket steers to right side and the left side headlight bracket remains stationery by cam mechanism and it is similar for the other side also. Because of this, the optical axis of the headlight is widened and it is useful for the drivers for safety ride.
LITERATURE REVIEW
The present invention relates to a vehicle front lamp light distribution control system and more particularly to a vehicle front lamp light distribution control system capable of raising visibility at the time of cornering by controlling light distribution means of the front lamp. According to-
Japanese Patent Publication No. H5-23216,
Japanese Patent Application Laid-Open No. H8-183385,
Japanese Patent Application Laid-Open No. H11-78675, and
Japanese Patent Application Laid-Open No. H8-192674 A vehicle head lamp including a fog lamp is provided with a movable reflector and by turning the movable reflector in the steering direction by an amount corresponding to a steering angle of the steering wheel, the light distribution pattern of the front lamp is changed in the direction of vehicle's turn so as to raise visibility at the time of cornering. However, according to the aforementioned earlier art, the light distribution pattern of the front lamp is changed in the steering direction of the steering wheel by an amount corresponding to the steering angle when the vehicle turns on an intersection or the like, cornering destination cannot be beamed brightly enough before operating the steering wheel. Therefore, an art capable of beaming the cornering destination prior to operation of the steering wheel has been demanded. Czech Tatra and 1920s Cadillacs were early implementer of such a technique, producing in the 1930s a vehicle with a central directional headlamp. The American 1948 Tucker Sedan was likewise equipped with a third central headlamp connected mechanically to the steering system. The 1967 French Citroën DS and 1970 Citroën SM were equipped with an elaborate dynamic headlamp positioning system that adjusted the headlamps' horizontal and vertical positioning in response to inputs from the vehicle's steering and suspension systems, though US regulations required this system to be deleted from those models when sold in the USA.
ABSTRACT
The topic of this project is steering controlled (or directional) headlights, that are usually a separate set of headlights fitted to road vehicles beside the usual low beam/high beam headlights and their feature is that they turn with the steering, so that the driver of the vehicle can see the bend, what he is actually turning into. These type of headlights appeared on production cars in the 1920’s and are still around nowadays, but not very popular, although they make night time driving safer. The most famous car which featured these lights was the Citroen DS (1955-1975), introduced on the 1968 Paris Motor Show. The headlights can be connected to the steering linkage by means of rods or cables, operated hydraulically by the power steering or nowadays electronically adjusted, even controlled by satellite navigation system. Our project is to make new and modern ―Directional Headlights‖ in efficient manner by increasing the light angle. Directional headlights are those headlights that provide improved lighting especially for cornering. There are automobiles that have their headlights directly connected to the steering mechanism so that its lights will follow the movement of the front wheels. Our project comprises Cam and Follower mechanism, Gear mechanism and spring mechanism. Cam and Follower mechanism is used to turn the head lights to right or left direction, Gear mechanism is used to transmit motion and to reduce the no of rotations from steering rod to cam shaft. Spring mechanism is used to bring back the follower and head light bracket to its initial position. According to our project, when the steering steers to the right, the light bracket at right alone steers to right using cam & follower mechanism and reduction gears & vice versa. At the same time the left bracket remains stand still due to the dwell period of the cam. During the return stroke of cam, the spring mechanism is used to bring the bracket and follower to its initial position. The reduction gears are used to turn the brackets to the required angle respective to the steering rotation.
INTRODUCTION
The present invention relates to headlights of an automobile, more particularly to a direction turning device for headlights of an automobile which enables to turn direction synchronously with the rotation of the steering and hence increasing the safety for driving at night or in the darkness. In the known technology of the prior art, a headlight of an automobile has a fixed line of emission which is aligned with the front direction of the automobile. Although the effects of "high beam" or "low beam" can be achieved by adjusting the angle of elevation of the headlight, the direction of emission is not adjustable as to the left or right. When the road curves or turns, the corner on time when the car turns, thereby creating a dead angle of illumination and such lack of visibility poses danger in driving at night or in darkness. Therefore, it is highly desirable to invent a device to solve this problem and such device is of high utility. An object of the present invention is to provide a direction turning device for a headlight of an automobile which renders to emission direction of a headlight of an automobile in synchronization with steering and thus increases the illuminated area upon changes of direction of the automobile when the automobile makes turns. In ancient Directional headlights, when the steering steers to right or left direction, then both the right and left headlights will steer to the perspective directions. It results in altering the optical axis of the head light to the vehicle speed and the front road-shape. But according to our project, when the steering steers to right then the right side of the headlight bracket steers to right side and the left side headlight bracket remains stationery by cam mechanism and it is similar for the other side also. Because of this, the optical axis of the headlight is widened and it is useful for the drivers for safety ride.
LITERATURE REVIEW
The present invention relates to a vehicle front lamp light distribution control system and more particularly to a vehicle front lamp light distribution control system capable of raising visibility at the time of cornering by controlling light distribution means of the front lamp. According to-
Japanese Patent Publication No. H5-23216,
Japanese Patent Application Laid-Open No. H8-183385,
Japanese Patent Application Laid-Open No. H11-78675, and
Japanese Patent Application Laid-Open No. H8-192674 A vehicle head lamp including a fog lamp is provided with a movable reflector and by turning the movable reflector in the steering direction by an amount corresponding to a steering angle of the steering wheel, the light distribution pattern of the front lamp is changed in the direction of vehicle's turn so as to raise visibility at the time of cornering. However, according to the aforementioned earlier art, the light distribution pattern of the front lamp is changed in the steering direction of the steering wheel by an amount corresponding to the steering angle when the vehicle turns on an intersection or the like, cornering destination cannot be beamed brightly enough before operating the steering wheel. Therefore, an art capable of beaming the cornering destination prior to operation of the steering wheel has been demanded. Czech Tatra and 1920s Cadillacs were early implementer of such a technique, producing in the 1930s a vehicle with a central directional headlamp. The American 1948 Tucker Sedan was likewise equipped with a third central headlamp connected mechanically to the steering system. The 1967 French Citroën DS and 1970 Citroën SM were equipped with an elaborate dynamic headlamp positioning system that adjusted the headlamps' horizontal and vertical positioning in response to inputs from the vehicle's steering and suspension systems, though US regulations required this system to be deleted from those models when sold in the USA.
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