| 摘要 |
PURPOSE:To maintain car speed at a preset speed with the high speed control performance by inserting a parallel circuit of an acceleration speed side gain circuit and a deceleration side gain circuit between a control circuit and a DC motor for driving a throttle valve. CONSTITUTION:The running speed (car speed) of a car is detected by a speed detection section 3 that is provided in a transmission 1 and the output is input to a control circuit 6. In addition, for the constant speed running control, the electromagnetic clutch plate 9 of a deceleration unit 8 is set to the torque transmission state by the control circuit 6. At the same time, the car speed is made to approach to a preset car speed by rotating a DC motor 7 for the time at a constant ratio by an acceleration signal 6a or a deceleration signal 6b and increasing and decreasing the opening of a throttle valve 11 through a cable 13 and such. Subsequently, a parallel circuit of an acceleration side gain circuit 15 and a deceleration side gain circuit 16 is inserted between the control circuit 6 and a DC motor 7. As a result, the high speed control performance can be obtained even when a car runs on a road where ascending and descending slopes coexist. |
