公开(公告)号：US3767972A

公开(公告)日：1973-10-23

申请号：US3767972D

申请日：1972-03-21

Applicant: ASS ENG LTD

Inventor： NODDINGS J ,  HYDE L ,  BORTON R

IPC: B60K31/10 ,  G01P1/10 ,  B60K31/00

CPC classification number: G01P1/103 ,  B60K31/105

Abstract: This invention relates to a speed responsive system for a motor vehicle whereby the vehicle may be kept at a predetermined speed, or the driver may be warned when a predetermined speed is reached. In one embodiment, the system includes an inductive pick-up or transducer, which senses rotation of a ferrous-toothed disc rotatable with a shaft to generate a voltage dependent upon the rotational speed of the shaft. Means, comprising a potential divider or a memory circuit, are provided for generating a reference voltage, and a comparator circuit is provided for comparing the voltages, the comparator being arranged to emit or change its output signal when the speed responsive voltage, or a voltage derived therefrom, reaches the reference voltage.

Abstract translation: 本发明涉及一种用于机动车辆的速度响应系统，其中车辆可以保持在预定速度，或者当达到预定速度时可以警告驾驶员。 在一个实施例中，系统包括感应拾取器或换能器，其感测可与轴一起旋转的铁线盘的旋转，以产生取决于轴的转速的电压。 提供包括分压器或存储器电路的装置，用于产生参考电压，并且提供比较器电路用于比较电压，比较器布置成当速度响应电压或电压时发射或改变其输出信号 从而得到参考电压。