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    • 11. 发明授权
    • Vehicle acceleration/deceleration warning system
    • 车辆加速/减速预警系统
    • US4258353A
    • 1981-03-24
    • US103410
    • 1979-12-13
    • Robert W. Carlson
    • Robert W. Carlson
    • B60Q1/44B60Q1/26H01H35/14
    • B60Q1/445
    • A compound pendulum allows light to impinge upon properly positioned acceleration or deceleration photocells to vary the resistance of the photocells in accordance with the angular displacement of the pendulum; the amount and direction of angular displacement of the pendulum is dependent on the amount of acceleration or deceleration of the vehicle. Variation of the deceleration photocell resistance varies the frequency of an oscillator circuit to alternately flash a pair of warning lights at a frequency dependent on the rate of deceleration of the vehicle. The acceleration photocell must receive maximum illumination (a threshold value) to actuate a light for warning of a minimum rate of acceleration of the vehicle. A manual switch allows a high flash rate of alternate warning lights to be controlled by the operator of the vehicle. An audio generator produces a continuous tone for acceleration and an interrupted tone for deceleration, the frequency of interruption corresponding to the flash rate of the deceleration warning lights. The system is an aid in preventing rear end collisions and will save gasoline if properly used.
    • 复合摆杆允许光照射到适当定位的加速或减速光电管,以根据摆锤的角位移来改变光电池的电阻; 摆的角位移量和方向取决于车辆的加速度或减速度。 减速光电管电阻的变化会改变振荡器电路的频率,以一定的频率交替地闪烁一个警告灯,取决于车辆的减速度。 加速度光电管必须接收最大照明(阈值)以致动灯,以警告车辆的最小加速度。 手动开关允许由车辆操作者控制交替警告灯的高闪光率。 音频发生器产生一个连续的加速音和一个中断的音调减速,中断频率对应于减速警告灯的闪光速率。 该系统有助于防止后端碰撞,如果使用正确,将节省汽油。