| 摘要 |
<p>[Document Name] Abstract [Abstract] [Object] In a power unit for a vehicle, in which clutches are provided between an engine and a transmission so as to be brought to power transmission states at the time of operation of hydraulic cylinders, a drive loss of the engine is decreased, though the clutches are kept in connection states by the hydraulic cylinders, and contribution to a decrease of fuel consumption of the engine is obtained. [Constitution] Electromagnetic open/close valves 40A, 40B are insertedly mounted in connection oil passages 39A, 3 9B which connect between an oil pump 36 driven by an electric motor 37 and hydraulic cylinders 35A, 35B, and a control unit C which controls operations of the electric motor 37 and electromagnetic open/close valves 40A, 40B closes the electromagnetic open/close valves 40A, 40B to cause oil pressures in the hydraulic cylinders 35A, 35B to be kept and stops the operation of the electric motor 37, during connections of clutches 15A, 15B. [Selected Drawing] Fig. 4</p> |
