Actuating device of the state switching elements, range switching device for an automatic transmission, as well as parking device

摘要

PROBLEM TO BE SOLVED: To accurately change a posture of a detent member 51, in an actuating device 40 including a detent mechanism 50 displacing and positioning displacement members 22, 33 of a state switching element 10, an actuator 60 driving the detent mechanism 50, and a control device 5 controlling the actuator 60.;SOLUTION: The control device 5 includes an initial motion means S1 decreasing a play in a rotating direction existing in an actuator 60 by driving an electric motor 61, when receiving a state switching request of the state switching element 10 and changing the posture of the detent member 51; and managing means S2-S5 setting values obtained by adding the play in the rotating direction existing at a coupling portion between a supporting shaft 52 and an output shaft 63 to a rotation angle required for changing the posture of the detent member 51 responding to the request as a target rotation angle of the electric motor 61.;COPYRIGHT: (C)2009,JPO&INPIT