Control device for vehicle lamp, and vehicle lamp system
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United States of America Patent
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Jun 9, 2020
Grant Date -
Oct 19, 2017
app pub date -
Jul 4, 2017
filing date -
Jan 14, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle-lamp control device includes a control unit that adjusts an optical axis with respect to a change in a total angle that includes a road surface angle and a vehicle attitude angle while the vehicle is at rest, and maintains the optical axis with respect to a change in the total angle while the vehicle is traveling. The control unit fixes the optical axis angle when a fault state of the control device is detected. Upon the control device having recovered from a fault state, the control unit generates an adjustment signal either upon estimating a current vehicle attitude angle on the basis of an output value from the tilt sensor obtained while the vehicle is traveling, or upon receiving a signal indicating a current vehicle attitude angle from an external device.
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