| 摘要 |
PURPOSE:To keep a safety running, by setting a car speed value coinciding with or corresponding to an alarm car speed as the upper limit value of the automatic constant speed value and changing the upper limit car speed when a set car speed exceeds the upper limit car speed and performing the deceleration control by a car speed limiting means. CONSTITUTION:The car speed signal from a car speed sensor 1 is inputted to an input buffer 8 of a controlling part 6, and data of running car speed at the time when a set switch 3 is operated is stored in a storage device of a microcomputer 7 and is set as a set car speed. This set car speed is compared with the running speed, and an actuator 14 of an automatic constant-speed running device is controlled through an output buffer 9 in accordance with the result of this comparison. A car speed value coinciding with or corresponding to the alarm car speed is set as the upper limit car speed of automatic constadnt-speed running when the alarm car speed is set by an alarm switch 4; and when the set car speed exceeds the upper limit car speed, the set car speed is changed by a cancel switch 5, and the deceleration control is performed by the actuator 14. |
