Patent application number | Description | Published |
20120101692 | VEHICLE LAMP CONTROLLER, VEHICLE LAMP SYSTEM, AND VEHICLE LAMP CONTROL METHOD - A vehicle lamp controller, a vehicle lamp system, and a vehicle lamp control method are provided. The vehicle lamp system includes an acceleration sensor, a vehicle lamp, and the vehicle controller. The controller includes a receiver configured to receive an acceleration information detected by the acceleration sensor, a control unit configured to derive a vehicle longitudinal direction acceleration and a vehicle vertical direction acceleration from the acceleration information, and to generate a control signal for instructing an adjustment of an optical axis of the vehicle lamp, based on a variation in a ratio between a temporal change amount of the vehicle longitudinal direction acceleration and a temporal change amount of the vehicle vertical direction acceleration during at least one of an acceleration and a deceleration of a vehicle, and a transmitter configured to transmit the control signal to an optical axis adjusting portion of the vehicle lamp. | 04-26-2012 |
20120155098 | VEHICLE LAMP CONTROL APPARATUS - A vehicle lamp control apparatus is provided with: a receiving portion for receiving output values of an acceleration sensor; a control portion for deriving a variation in an inclination angle of a vehicle based on the output values of the acceleration sensor and generating a control signal for instructing an optical axis adjustment of a vehicle lamp; and a transmitting portion for transmitting the control signal to an optical axis adjusting portion of the vehicle lamp. The control portion is configured to detect an error factor of the output values occurring in the acceleration sensor based on the output values of the acceleration sensor and to correct an optical axis position of the vehicle lamp. | 06-21-2012 |
20120206043 | VEHICLE HEAD LAMP LIGHT DISTRIBUTION CONTROLLER - A vehicle head lamp light distribution controller includes an ADB controller configured to: detect a position of a vehicle present ahead of a subject vehicle; determine whether the vehicle ahead of the subject vehicle is a preceding vehicle or an oncoming vehicle; set a threshold vehicle position based on whether the vehicle ahead of the subject vehicle is a preceding vehicle or an oncoming vehicle; compare the threshold vehicle position and the detected vehicle position; and switch light distribution of head lamps of the subject vehicle based on the comparison between the threshold vehicle position and the detected vehicle position. | 08-16-2012 |
20120268958 | CONTROL DEVICE FOR VEHICLE LAMP AND VEHICLE LAMP SYSTEM - A control device ( | 10-25-2012 |
20120294020 | CONTROL APPARATUS FOR VEHICLE LAMP AND VEHICLE LAMP SYSTEM - A control apparatus for a vehicle lamp includes a receiver to receive an acceleration signal indicative of an acceleration detected by an acceleration sensor, and a controller to derive an inclination angle of a vehicle relative to a horizontal plane from the acceleration signal. While the vehicle is stopped and if a change in the acceleration exceeds a threshold, the controller outputs an adjustment signal indicative of an instruction to adjust an optical axis of the vehicle lamp in accordance with a difference in the inclination angle before and after the change in the acceleration. | 11-22-2012 |
20120303223 | VEHICLE LAMP CONTROL APPARATUS AND VEHICLE LAMP SYSTEM - Techniques are disclosed for enhancing the accuracy of auto-leveling control to adjust the optical axis of a vehicle lamp using an acceleration sensor. A controller stores reference values of first and second angles, updates the reference value of the second angle by treating a change of a sum angle during a vehicle stop as a change of the second angle, and updates the reference value of the first angle by treating a change of the sum angle during vehicle traveling as a change of the first angle. The controller derives a difference between a value of the sum angle and a sum of the reference values of the first and second angles, and corrects at least one of the reference values so as to reduce the difference. | 11-29-2012 |
20120310486 | VEHICLE LAMP CONTROL DEVICE AND VEHICLE LAMP SYSTEM - A control device of a vehicle lamp includes: a receiving section which receives an acceleration value usable to derive a tilt angle of a vehicle to a horizontal plane, wherein the tilt angle of the vehicle to the horizontal plane is represented as a total angle; and a control section which controls an optical axis adjustment of the vehicle lamp. The control section derives from the total angle a first and a second provisional vehicle posture angles based on a first and a second calculation method, respectively, corrects the first or second provisional vehicle posture angle so that a difference between the first and the second provisional vehicle posture angles becomes small, 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. | 12-06-2012 |
20130039080 | AUTOMOTIVE HEADLAMP APPARATUS AND LIGHT DISTRIBUTION CONTROL METHOD - A automotive headlamp apparatus is configured such that, when there is a forward vehicle positioned in a predetermined first area, a control unit controls a shading unit so as to generate a single additional light distribution pattern selected from multiple additional light distribution patterns such that exposure of the forward vehicle to illumination is shielded, and when there is a forward vehicle positioned in a predetermined second area, the control unit controls the shading unit so as to generate a single additional light distribution pattern selected from multiple additional light distribution patterns, and controls a driving unit so as to swivel the optical axis of a lamp unit, such that the forward vehicle is not exposed to illumination. | 02-14-2013 |