HYBRID WORK MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a hybrid work machine capable of almost maintaining a rate of rotation of an engine and sufficiently reducing fuel consumption of the engine even in brief assist operation when using regenerated energy from a regeneration device for operation of an assist motor without involving any means to temporarily store the regenerated energy.SOLUTION: A hybrid work machine comprises: an engine 11; a pulse generator 13 to detect a rate of rotation of the engine 11; an engine control section 12 to control the engine 11; an assist motor 21 to assist drive of the engine 11; a regeneration device 41; and an energy regeneration control device 31 to control regenerated energy from the regeneration device 41. The energy regeneration control device 31 controls the assist motor 21 to assist drive of the engine 11 in accordance with an amount of the regenerated energy from the regeneration device 41 and corrects a fuel injection amount signal with a fuel correction amount signal converted by a converter 17.