| 摘要 |
<P>PROBLEM TO BE SOLVED: To precisely calculate a present charge rate of a battery. <P>SOLUTION: A hybrid construction machine, during an operation of a generator motor 8a, calculates a present charge rate in an electric current accumulation mode in which a charge current and a discharge current of a battery 12 are accumulated and the accumulation is added to or subtracted from an initial charge rate, and when a cumulative operation time reaches a setting value under the condition that no turning operation is present, switches to a voltage reference mode in which the present charge rate is calculated from a battery voltage on the basis of a predetermined map, and after the calculation of the present charge rate in the voltage reference mode, returns a calculation mode to the electric current accumulation mode and cancels the stop of the generator motor 8. <P>COPYRIGHT: (C)2013,JPO&INPIT |
