| 摘要 |
PURPOSE:To keep the rotational speed of the output shaft of a power deriving apparatus constant by controlling the slip ratios of sliding clutches in response to a feedback signal from a rotation sensor to transmit power. CONSTITUTION:When a main engine 1 selects a lower rotational speed, a main engine rotation setting unit issues, a low rotation signal to be input into a clutch rotation setting unit. A high speed sliding clutch 9a which has been in a fitting state before that time is actuated in a sliding state from the fitting state and another low speed sliding clutch 9b is actuated from a non-fitting state to a sliding state. The slip ratios between the sliding clutches 9a, 9b under these conditions are controlled in response to a feedback signal from a rotation sensor 15 mounted on the system of an output shaft 12 provided in a power deriving apparatus 7. |
