POWER STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a power steering device that can suppress impact at the time when turning is regulated.SOLUTION: The power steering device comprises: a rotary valve (8) selectively supplies hydraulic fluid to be supplied from a pump device (61) to a pair of hydraulic pressure chambers (71 and 72) of a power cylinder (7) according to relative rotation between an input shaft (21) and an output shaft (24); a hollow second electric motor (5) that is provided to surround at least one part of the input shaft (21) in a shaft direction and controls rotation of the input shaft (21) on the basis of a driving situation of a vehicle; and a control device (100) that calculates command signals to the second electric motor (5) so that rotation force is generated in the opposite direction of a cut-in direction and then drives and controls the second electric motor (5) when steering angle signals of turning wheels (45) are equal to a first predetermined angle or more and a steering wheel (200) is steered in the cut-in direction.SELECTED DRAWING: Figure 1