| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular headlamp control unit capable of suppressing erroneous estimation of a displacement quantity of a pitch angle.SOLUTION: A vehicular headlamp control unit according to the present invention includes: a vehicle height sensor 1 that detects a displacement quantity of a vehicle height; a pitch angle calculation unit 21 that calculates a pitch angle of a headlamp 9 on the basis of the displacement quantity that is an output of the vehicle height sensor 1; and an optical-axis direction adjustment unit 22 that adjusts the optical-axis direction of the headlamp 9 on the basis of the pitch angle calculated by the pitch angle calculation unit 21. The pitch angle calculation unit 21 calculates the pitch angle on the basis of function data F of the pitch angle in relation to a pre-set displacement quantity. The function data F specifies change intervals A1 and A2 in which the pitch angle changes along with a change in the displacement quantity, and a no-change interval B in which the pitch angle does not change along with the change in the displacement quantity. The no-change interval B is an interval that encompasses an initial displacement quantity c1 which is an output of the vehicle height sensor 1 under an initial condition, and is designated on a side of displacement quantities smaller than at least the initial displacement quantity c1. |
