Patent ID: 9067533
Filing Date: 2015-06-30
Classification: B60Q

Abstract:
1. A control device of a vehicle lamp, the device comprising: a receiving section which receives an acceleration value detected by an acceleration sensor, the acceleration value usable to derive a tilt angle of a vehicle with respect to a horizontal plane, wherein when the tilt angle of the vehicle with respect to the horizontal plane is represented as a total angle, the total angle includes a road surface angle which is a tilt angle of a road surface with respect to the horizontal plane and a vehicle posture angle which is a tilt angle of the vehicle with respect to the road surface; and a control section which controls an optical axis adjustment of the vehicle lamp, wherein the control section derives a first provisional vehicle posture angle from the total angle based on a first calculation method, and a second provisional vehicle posture angle based on a second calculation method, corrects one of the first provisional vehicle posture angle and the second provisional vehicle posture angle so that a difference between the first provisional vehicle posture angle and the second provisional vehicle posture angle, after correction, is smaller than before the correction, sets the corrected provisional vehicle posture angle to the vehicle posture angle, and outputs a control signal for instructing the optical axis adjustment of the vehicle lamp according to the vehicle posture angle, and wherein the second calculation method calculates the second provisional vehicle posture angle independently of the first provisional vehicle posture angle calculated by the first calculation method, and the first calculation method calculates the first provisional vehicle posture angle independently of the second provisional vehicle posture angle calculated by the second calculation method.