| 摘要 |
PURPOSE:To lighten speed change shock by switching a planetary gear unit in a speed change gear to low gear side or high gear side by switching a clutch and controlling an electric motor according to the deviation of the number of revolution of the clutch and an output shaft when the clutch is operated. CONSTITUTION:An input shaft 24 is installed, permitting relative revolution, coaxially with the input shaft 16 of a speed change gear which is revolved through gears 20 and 18 by the revolution f an electric motor 10. A sun gear 26 and a planetary gear unit C including a ring gear 30 and a planetary gear 32 are arranged onto the output shaft 24, and a cone clutch 34 for switching the planetary gear unit C to low gear side or high gear side is installed. When the operation of the cone clutch 34 is detected from the output of a hydraulic controller 50, the revolution of the electric motor 10 is controlled through a motor controller 63 according to the deviation output of a comparator 62 for comparing the outputs of the first and the second revolution number sensors 60 and 61 for detecting the number of revolution of the cone clutch 34 and the output shaft 24. |
