| 摘要 |
PURPOSE:To hold exactly a running distance, by detecting a fact that a vehicle runs exceeding a specified distance, and also writing the information of the running distance in a storing circuit when a car speed becomes zero. CONSTITUTION:A signal 1 generated electrically by following a rotation of a wheel of a vehicle is inputted to a running pulse train 2, and a running distance is displayed in figures on a display element 4 by a display controlling circuit 3. In this way, the running distance is displayed in figures. Also, the running distance is stored in a storing circuit 5, as an electric signal, and even after the feed is stopped, the stored contents can be held. |
