| 摘要 |
PURPOSE:To enable to control the vehicle speed with high accuracy with no use of an expensive vehicle-speed sensor, by controlling a speed controlling means in response to the data relating to a desired vehicle speed and the data relating to the actual vehicle speed to make the actual vehicle speed equal to the desired vehicle speed. CONSTITUTION:Outputs of a rotation sensor 4 and a vehicle-speed sensor 5 are applied to a CPU16 via I/F9, 14 and an I/O15, and the gear position of a transmission 10 is detected from an engine speed N and a vehicle spee V calculated at the CPU16. Further, the actual vehicle speed is calculated from the engine speed N and the gear position signal obtained through calculation in the CPU 16. A position signal S5 indicating the control position of a fuel control member of an internal combustion engine 2 is produced from the data representing the actual vehicle speed and the data relating to the desired vehicle speed, read from a memory 17 in response to a control signal S4 given from control switches on a control panel 18, and the vehicle speed is kept at the desired value by controlling an actuator 20 according to the signal S5. |
