Automatic car speed control device

Abstract

Abstract PURPOSE:To make it easy to change control constant, by furnishing a ROM to store a memory of a constant variable depending on the car feature, of the control constants, at the outside of the control member. CONSTITUTION:Outputs from a car speed sensor 1 and a command switch 2 are input to a microcomputer 6 in a control member through interfaces 4 and 5 in a controller 3 respectively. In this case, the car speed is controlled to keep constant by sending a command to an actuator 10 responding to the difference between the memorized car speed when the command switch 2 is operated, and the practical car speed. A control constant variable with the car feature in a control program is stored in an external ROM and transferred to a RAM in the microcomputer 6 of the control member. As a result, the control constant can be changed easily depending on a variation of car feature, by replacing only ROM 7.

Inventors

• 👤 Kiyoshi Konishi
• 👤 小西　潔

Bibliographic Details