| 摘要 |
PURPOSE:To reduce number of switches required, by identifying at least 2 modes, making the first mode exercise car speed memory designation and car speed regeneration, and the second mode update memory of a memorized car speed in the car speed memory. CONSTITUTION:A car speed display unit DSP which indicates car speed memory, and negative pressure actuaters with solenoids SL1 and SL2 for driving throttle valves are arranged. At the same time, a set switch for a constant speed running SWC, a resume switch SWD, a mode switch SWE which converts the functions of the switches SWC and SWD, and a speed detection switch SWG are furnished. When the first mode is identified, a constant speed control is exercised depending on a given specific speed owing to the actions of the switches SWC and SWD. When the second mode is identified, the system is formed so that the speed memory is updated to take a value which is the memorized speed plus or minus a specific value in CPU, depending on the motions of SWC and SWD. |
