| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hybrid working machine capable of preventing, if an electric abnormality occurs, the electric abnormality from occurring due to the further supply of power to a position where the electric abnormality occurs. <P>SOLUTION: This hybrid working machine 1 includes an assist-motor 22, a motor 24 for turning, inverters 21, 23 for driving the assist-motor 22 and the motor 24 for turning, a battery 26, a step up/down converter 25 for charging and discharging the battery, a DC bus 20 connected to the inverters 21, 23 and step up/down converter 25, and a control means which detects at least one of the voltage values and the current values on the input side and the output side of the inverters 21, 23 and the step up/down converter 25 and, if an abnormality occurs in the detected values on the input sides, controls the device so as to prohibit the transmission of current from the output side to the input side of the device and, if an abnormality occurs in the detected value on the output sides, controls the device so as to prohibits the transmission of current from the input side to the output side of the device. <P>COPYRIGHT: (C)2010,JPO&INPIT |
