| 摘要 |
A transmission (20) includes: a change-gear mechanism (20a); a centrifugal clutch (25); a control unit (9); and a secondary sheave rotation sensor (41). The change-gear mechanism (20a) has an input shaft (21d), an output shaft (22d), and an actuator (30) for changing a change-gear ratio between the input shaft (21d) and the output shaft (22d). The centrifugal clutch (25) is connected to the output shaft (22d). The control unit (9) controls the actuator (30). The secondary sheave rotation sensor (41) detects a rotational speed (54) of the output shaft (22d) and outputs to the control unit (9).The control unit (9) controls the actuator (30) based on a target change-gear ratio (56) obtained by dividing a target rotational speed (53) of the input shaft (21d) by the rotational speed (54) of the output shaft (22d). |
