| 摘要 |
PURPOSE:To control a finish angle at a given value even during the steering operation by providing a means by which the deviation angle between the direction of car body and the advancing direction of vehicle, accompanying the steering operation, and also a means by which the rotation angle of a blade is corrected by the deviation angle. CONSTITUTION:Inclination angle to each direction of a car body, rotation angle of a circle 6, and inclination angle of a blade 1 are detected by sensors S1-Sn, and the inclination angle alpha and imaginary advancing angle beta of the blade 1 are calculated by the first arithmetic means 101. Also, correcting angle omega for the advancing angle beta of the blade is calculated on a leaning angle sigma and a steering angle gamma by the second arithmetic means 102. Then, finish angle theta after the correction is calculated by the third arithmetic means 103, and then compared with a set finish angle theta' in a comparator 40. Furthermore, an electricity/oil converter 60 is driven through a drive circuit 50 on the deviation to allow the finish angle theta to follow up a target finish angle theta'. |
