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Adaptive front lighting system (AFS) control method and device

A control device and control method technology, which is applied in signal devices, transportation and packaging, optical signals, etc., can solve the problems of increasing frequent movements of AFS motion pairs, failure to guarantee AFS reliability, and cost savings without using them, so as to reduce frequent movements , reduce wear and prolong service life

Active Publication Date: 2011-05-25
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

[0006] In the prior art, after the vehicle is stopped and turned off, the irradiation angle of the AFS headlight is adjusted to return to zero, which increases the frequent actions of the AFS motion pair, which cannot guarantee the reliability of the AFS, and the irradiation angle of the AFS headlight frequently returns to zero. The action consumes a lot of resources, increases the wear and tear of the system, reduces the life of the system, and does not use to save costs

Method used

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  • Adaptive front lighting system (AFS) control method and device
  • Adaptive front lighting system (AFS) control method and device
  • Adaptive front lighting system (AFS) control method and device

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Embodiment Construction

[0025] The present invention proposes an AFS control method and device. When the vehicle starts and is in an idling state, the irradiation angle value of the AFS headlight is obtained, and the occurrence frequency of each AFS headlight irradiation angle in a preset period is counted; The irradiation angle corresponding to the frequency of occurrence of the threshold value, when the vehicle is stopped, the AFS headlight is controlled to maintain the irradiation angle; when the frequency of occurrence of each AFS headlight irradiation angle is lower than the preset threshold value, when the vehicle is stopped In the state, control the irradiation angle of the AFS headlamp to return to zero.

[0026] Such as figure 1 As shown, it is a schematic flow chart of an AFS control method proposed by the present invention, and the method includes the following steps:

[0027] Step s101, counting the occurrence frequency of the illumination angles of each AFS headlight, and obtaining the ...

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Abstract

The invention relates to an adaptive front lighting system (AFS) control method and an AFS control device. The method comprises the following steps of: counting the frequency of occurrence of a lighting angle of each AFS headlight, and acquiring the lighting angle corresponding to the frequency of occurrence exceeding a threshold; and performing control to keep the lighting of the AFS headlight in the lighting angle. The method and the device avoid the frequent resetting of the lighting angle of the AFS headlight in the stopped state of a vehicle to make more humanized the AFS headlight, reduce the frequent movement and abrasion of an AFS kinematic pair and the running times of a system, prolong the service life of the system, ensure the reliability of the AFS and save the cost; and the AFS is implemented by a simple method without greatly altering the conventional AFS, and has relatively higher practicability.

Description

technical field [0001] The invention relates to the technical field of automobile lighting, in particular to an AFS control method and device. Background technique [0002] AFS (Adaptive Front Lighting System, Adaptive Front Lighting System) refers to a headlight system that can automatically change more than two light patterns to adapt to changes in vehicle driving conditions. In weather and other conditions, adaptive adjustments can be made according to the actual conditions of the driving road surface to improve the lighting effect of the headlights. [0003] When the vehicle is started, due to the weight of the driver and the occupant, the vehicle leans forward, and the irradiation angle of the corresponding AFS headlight is adjusted appropriately; related to identity information. When the vehicle is stopped and the engine is turned off, the irradiation angle of the AFS headlight returns to zero. [0004] In this way, each time the vehicle is started, the irradiation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q1/08
Inventor 徐贤张亮李济林杨波
Owner CHERY AUTOMOBILE CO LTD
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