| 摘要 |
PURPOSE: A vehicle tachograph is provided to graph past running information to search the information without using any additional reading element or a personal computer in real time, thereby improving the convenience and performance of the tachograph. CONSTITUTION: A vehicle tachograph includes a data storing element(40) incorporated for storing vehicle running information, and a dot matrix LCD(Liquid Crystal Display) mounted at a side of a display part(20) for displaying graphic running information according to a predetermined operation mode, wherein the operation mode is composed of a real time checking mode for displaying a preset graphic warning speed and graphic instant running speed in real time, and a stored information searching and checking mode for searching the running information stored in the data storing element by date and displaying graphic running information of a predetermined time period.
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