Title:
AUTOMATIC LEVELING METHOD AND APPARATUS FOR AUTOMOTIVE HEADLAMP
Document Type and Number:
WIPO Patent Application WO/2024/108932
Kind Code:
A1
Abstract:
An automatic leveling method for an automotive headlamp. The method comprises: acquiring road condition information; according to the road condition information, determining whether the current road surface is a rough road surface; if the current road surface is not a rough road surface, acquiring automotive-body height change signals at a plurality of preset positions; calculating automotive pose information according to the automotive-body height change signals at the plurality of preset positions; acquiring an initial collimation angle; obtaining headlamp deflection angle information according to the automotive pose information and the initial collimation angle; generating a headlamp control signal according to the headlamp deflection angle information; and sending the headlamp control signal to a headlamp, such that the headlamp performs light leveling according to the headlamp control signal. In the method, a control signal is generated on the basis of automotive-body height change signals, and the irradiation direction of a headlamp is adaptively and vertically adjusted when the pose of an automobile changes, such that the irradiation range of the headlamp is maintained stable, thereby avoiding potential traffic accident risks caused by the irradiation position of the headlamp being excessively high or excessively low. Further disclosed is an automatic leveling apparatus for an automotive headlamp.
Inventors:
LI DAN (CN)
GUAN ZHONGXU (CN)
ZHANG HANG (CN)
SHI YUNXIA (CN)
ZHAI ZHAOHUA (CN)
GUAN ZHONGXU (CN)
ZHANG HANG (CN)
SHI YUNXIA (CN)
ZHAI ZHAOHUA (CN)
Application Number:
PCT/CN2023/095006
Publication Date:
May 30, 2024
Filing Date:
May 18, 2023
Export Citation:
Assignee:
CHINA FAW CO LTD (CN)
International Classes:
B60Q1/115; B60Q1/08; B60Q1/12
Foreign References:
| JP2009220778A | 2009-10-01 | |||
| JP2009184463A | 2009-08-20 | |||
| KR19980020397A | 1998-06-25 | |||
| CN115837875A | 2023-03-24 | |||
| CN105857163A | 2016-08-17 | |||
| KR20100073235A | 2010-07-01 |
Attorney, Agent or Firm:
BEIJING XIANGYU PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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