Patent ID: 9030165
Filing Date: 2015-05-12
Classification: B60L,B60R,H02J,Y02T

Abstract:
1. An operating machine comprising: an engine serving as a power source; an engine control unit that performs idling stop control, in which said engine is stopped automatically during an idling operation, when a predetermined condition is established; an electric component; a power generation device that is driven by said engine to supply electricity; a first battery that is connected to said power generation device via a first switch, switched by said first switch between a condition of being charged by said power generation device and a condition of not being charged, and used to start said engine; a second battery that is connected to said power generation device in parallel with said first battery via a second switch, switched by said second switch between a condition of being charged by said power generation device and a condition of not being charged, and used to operate said electric component during an idling stop in said engine; a residual capacity estimation unit that estimates a first estimated residual capacity which is a residual capacity of said first battery and a second estimated residual capacity which is a residual capacity of said second battery; a charging time estimation unit that estimates a first estimated charging time which is a charging time required to restore a capacity of said first battery from said first estimated residual capacity to a target capacity value of said first battery and a second estimated charging time which is a charging time required to restore a capacity of said second battery from said second estimated residual capacity to a target capacity value of said second battery; a capacity management implementation unit that implements capacity management on said first battery by controlling said first switch such that said first battery is charged for said first estimated charging time and implements capacity management on said second battery by controlling said second switch such that said second battery is charged for said second estimated charging time; and a discharge amount limitation unit for limiting a discharge amount of said second battery during said idling stop in said engine so that a residual capacity of said second battery after discharge is maintained at or above a set value.