HYBRID WORK MACHINE, AND AUTO-STOP CONTROL METHOD FOR ENGINE OF HYBRID WORK MACHINE

摘要

The hybrid hydraulic shovel 1 has an engine 4, a generator electric motor 5, a capacitor 12, a cooling device 80 for cooling the capacitor 12, and a controller 41. The cooling device 80 includes a circulation mechanism 81 for circulating cooling water and a cooler 85 for cooling the cooling water by using the output of the engine 4. [ The controller 41 prohibits the automatic stopping operation of the engine 4 when the capacitor 12 is determined to be in the overheat state.