| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a controller of a hybrid construction machine wherein the number of sensors is minimized. <P>SOLUTION: This controller C controls regulators 10, 20 of a main pump MP, the inclination angle controller 35 of a sub pump SP, the inclination angle controller 36 of an assist motor AM, and an electric motor MG according to operating signals for a swing motor RM and the other actuators, and controllably opens and closes the electromagnetic switching valve 46 according to a signal of a pressure sensor 47. The controller also assists the output of the electric motor with the drive force of the assist motor by opening an electromagnetic opening/closing valve to guide the pressure fluid in swing motor passages 26, 27 from a converged passage 43 to the assist motor AM via a safety valve 48 when a pressure signal from the pressure sensor 47 slightly lower than the swing pressure of the swing motor RM is inputted there. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
