| 摘要 |
<p>An automatic clutch control system is disclosed where a first servo loop for controlling clutch actuating means when the engine is idling, a non-drive range (P,N of 20) of the transmission (14) having been selected when the vehicle is at standstill, includes means (1300) for storing an operating parameter related to the engine idle speed for example a target engine speed or the speed detector of an idle speed control system, and a second servo loop for controlling the clutch engagement to adjust the clutch transfer torque to a predetermined level. The second servo loop is effective when the engine is idling, a drive range (R,D,L of 20) having been selected when the vehicle is at standstill, and includes means (1300) for determining a target, for example an engine speed to give a creep torque, based on the stored operating parameter and means for controlling the clutch engagement to reduce the deviation of the parameter from the target. The control system may be used in conjunction with a transmission control system for a steplessly variable V-belt transmission, the inputs to the system being range selected (304), throttle opening (303), brake actuation (307), coolant temperature (306), engine speed (302) and shift reference (1298). <IMAGE></p> |
