US Patent 10286564 System for locally generating electricity on a robotic device

A robotic device includes a robot arm. A fluid-powered tool is located on the robot arm. A hose supplies a pressurized working fluid to the fluid-powered tool. A fluid motor is coupled to an electric generator to drive the electric generator. An actuator selectively supplies the pressurized working fluid to the fluid motor. A battery is operatively connected to receive electrical energy from the electric generator. A controller is powered by the battery and is operatively connected to the actuator to control operation of the fluid motor and charging of the battery by the electric generator.