Patent ID: 7728449
Filing Date: 2010-06-01
Classification: B60K,B60L,B60W,E02F,Y02T

Abstract:
1. A hybrid working machine, comprising: a hydraulic pump for driving a hydraulic actuator; a generator motor for performing a generator operation and a motor operation; an engine for driving said hydraulic pump and said generator motor, the engine serving as a common power source therefor; an electric storage device electrically charged by the generator operation of said generator motor, the electric storage device being configured such that said generator motor is driven by electric power of the electric storage device so as to perform the motor operation for assisting said engine; controlling means for controlling an engine assisting action by said generator motor; and operation state detecting means for detecting engine failure or an operation state which is directly connected to the engine failure, wherein said controlling means is adapted to stop the engine assisting action when said operation state detecting means detects the engine failure or the operation state which is directly connected to the engine failure.