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1. 发明授权

US5877680A Apparatus for automatically adjusting aiming of headlights of an automotive vehicle 失效
标题翻译：用于自动调节机动车辆前灯的瞄准装置
公开(公告)号：US5877680A
公开(公告)日：1999-03-02
申请号：US989402
申请日：1997-12-12
申请人： Hiroaki Okuchi , Kenichi Nishimura , Takanori Ota , Ryoji Kawakami , Ryosuke Naito , Yuji Yamada
发明人： Hiroaki Okuchi , Kenichi Nishimura , Takanori Ota , Ryoji Kawakami , Ryosuke Naito , Yuji Yamada
IPC分类号： B60Q1/115 , B60Q1/26
CPC分类号： B60Q1/115 , B60Q2300/112 , B60Q2300/114 , B60Q2300/116 , B60Q2300/132 , B60Q2300/134
摘要： A pitch angle in the back-and-forth direction of the vehicle body is calculated based on output signals of height sensors disposed at front and rear wheels of the vehicle. A vehicle traveling speed is obtained. A vehicle acceleration is obtained from the vehicle traveling speed. Using the vehicle traveling speed and the vehicle acceleration, a judgement is made to determine the control mode corresponding to the vehicle traveling condition, by selecting one from the group consisting of a stopping mode, an acceleration mode, a deceleration mode and a constant-speed mode. An actuator target value (i.e., target aiming adjustment angle) is calculated in accordance with the determined control mode. To obtain this actuator target value, a filter is used to process the pitch angle so that the headlights do not dazzle an oncoming vehicle's driver. Then, the aiming adjustment for the headlights is performed by actuating actuators in accordance with the actuator target value. The pitch angle is adequately processed by using a preferable filter. Therefore, the aiming adjustment of the headlights is not performed unnecessarily or erroneously.
摘要翻译：基于设置在车辆的前轮和后轮的高度传感器的输出信号计算车身前后方向的俯仰角。获得车辆行驶速度。从车辆行驶速度获得车辆加速度。使用车辆行驶速度和车辆加速度，通过从由停车模式，加速模式，减速模式和恒定速度组成的组中选择一个来判定与车辆行驶状况相对应的控制模式模式。根据确定的控制模式来计算执行器目标值（即目标瞄准调整角度）。为了获得该致动器目标值，使用过滤器来处理桨距角，使得前灯不会使迎面而来的车辆驾驶员眩目。然后，通过根据致动器目标值致动致动器来执行前照灯的瞄准调节。通过使用优选的过滤器适当地处理桨距角。因此，前照灯的瞄准调整不会不必要地或错误地进行。

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