Sony Group Corporation
ROBOT APPARATUS, METHOD FOR CONTROLLING ROBOT APPARATUS, AND LOAD COMPENSATION APPARATUS

Abstract:

There is provided a robot apparatus that includes a load compensation function dealing with a variation in load. The robot apparatus includes one or more movable portions, a load compensation section utilizing an elastic body to compensate for a load acting on the movable portion, and an initial displacement amount setting section applying, to the elastic body, an initial displacement amount corresponding to a desired position or posture of the movable portion. The initial displacement setting section includes an actuator displacing the elastic body by an initial displacement amount and locks the actuator with the elastic body remaining displaced by the initial displacement amount. The movable portion is a leg including a joint portion having a degree of rotational freedom around a pitch axis, and the initial displacement amount setting section sets the initial displacement amount on the basis of a toe force of the leg.