Automobile long-and-short distant light switching system

A switching system, far and near light technology, applied in optical signals, vehicle components, signal devices and other directions, can solve the problems of inability to achieve automatic switching and manual switching compatibility, inaccurate distance acquisition, difficult to accurately switch and other problems, to achieve convenient and flexible operation, The effect of good safety performance and timely processing

Inactive Publication Date: 2010-09-29
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Obviously, the above schemes all use photosensitive sensing devices to collect distance signals, and their disadvantages are: because they are used at night, it is easy to cause inaccurate distance collection due to the influence of light factors
On the other hand, the above-mentioned solutions can only realize automatic switching, but cannot realize the compatibility between automatic switching and manual switching, so when the road conditions are not suitable for automatic switching, there will be a problem that it is difficult to switch accurately
In addition, the existing technologies all use simple circuits to realize automatic switching, but do not use intelligent control hardware such as single-chip microcomputers and MCUs with complete functions, and the stability of work is relatively poor.

Method used

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  • Automobile long-and-short distant light switching system
  • Automobile long-and-short distant light switching system
  • Automobile long-and-short distant light switching system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, the automobile high and low beam switching system includes a detector 1 for detecting the distance of an object in front of the automobile and generating a distance signal corresponding to the distance of the object. When the distance corresponding to the distance signal is less than the set The control module 2 that can generate switching trigger signal when distance. On the control module 2, the high beam light switch 3 that is in the conduction state and the low beam light switch 4 that is in the disconnected state are connected when the object distance in front of the car is greater than the set distance, and when the control module 2 generates a switching trigger signal, the switching The trigger signal can make the high beam switch 3 and the low beam switch 4 change working states simultaneously. The set distance here is 80-120 meters, and the set distance is 100 meters in this embodiment.

[0022] The detector 1 here is a car radar. Sin...

Embodiment 2

[0026] like figure 2 As shown, in this embodiment, the microprocessor 22 is connected with an adjustment unit 7 for changing the set distance. The setting distance can be easily changed through the adjustment unit 7, further improving the flexibility of use. The microprocessor 22 includes a correction unit 221 that can adjust the generation time of the switching trigger signal according to the movement state of the object before the distance corresponding to the distance signal of the detector 1 is less than the set distance. The motion state of the object here includes, but is not limited to, various factors such as the speed, acceleration, direction of motion, and trajectory of the object. Obviously, if the movement speed or acceleration is fast, the generation time of the switching trigger signal in the control module 2 can be appropriately advanced. On the contrary, it can be delayed appropriately. The rest are similar to those in Example 1, and will not be described i...

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Abstract

The invention provides an automobile long-and-short distant light switching system, belonging to the technical field of automatic control. The switching system solves the problem that the existing automobile long-and-short distant light switching system can not realize compatibility of automatic switchover and manual switchover. The automobile long-and-short distant light switching system comprises a detector for detecting the distance of an object in front of automobile and generating a distance signal corresponding to the distance of the object; the detector is connected with a control module which can generate a switching trigger signal when the distance corresponding to the distance signal is less than the set distance; the control module is connected with a long distant light switch in a conducting state and a short distant light switch in a disconnection state when the distance of the object in front of the automobile is more than the set distance; and when the control module generates the switch trigger signal, the signal can enable the long distant light switch and the short distant light switch to change the working condition simultaneously. The switching system has the advantages of good working stability, convenient operation and use and the like.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and relates to the control of high and low beams of automobiles, in particular to a switching system of high and low beams of automobiles. Background technique [0002] Cars on the market travel far at night at night, and the switching of the dipped headlight basically all relies on the driver to operate manually. If there is an oncoming vehicle or pedestrian, if the driver does not switch to low beam in time, it will cause inconvenience or danger to the other party. For this reason, people have carried out long-term exploration, put forward various solutions. [0003] For example, the Chinese patent literature discloses an automatic switching device for far and low beams when cars meet cars [Application No.: CN97222896.9]. Feeling, after the calculation and comparison of the logic operator, according to the strength of the ambient light, the presence or absence of the headlights of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q1/14
Inventor 李东武陈文强李书福杨健赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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