BLADE CONTROL DEVICE AND BLADE CONTROL METHOD

A blade control device comprises a design face acquisition unit to acquire a design face that includes a first face present in front of a work vehicle and a second face having a slope different from the first face and that indicates a target shape for the area to be excavated by a blade supported by the vehicle body of the work vehicle; a vehicle body angle acquisition unit to acquire a measured pitch angle that indicates the angle of inclination in the front-to-rear direction of the vehicle body; an intended pitching angle calculation unit to calculate an intended pitching angle that indicates the deviation between the measured pitch angle and the design face pitch angle indicating the angle of inclination of the second face for when at least a portion of the vehicle body is positioned onthe first face and the blade is positioned above the second face; a correction pitch angle calculation unit to calculate a correction pitch angle for the vehicle body by correcting the measured pitchangle on the basis of the