Control device for vehicle lamp, and vehicle lamp system
US10676016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2017 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jan 24, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/324
- WIPO fieldTransport
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.