| 摘要 |
A shift switching control device of a vehicle including a shift switching mechanism that electrically switches a shift position of an automatic transmission with activation of a step motor based on an operation signal indicative of an operating state of an operating device for switching a shift position of the automatic transmission, wherein if a first shift switching control is provided that is determined in advance as shift position switching control giving higher priority to higher output of the step motor rather than responsiveness of switching of a shift position, the shift switching control device of a vehicle drives the step motor in a one-two-phase excitation mode and sets a rotation speed of the step motor to a predetermined first rotation speed, and wherein if a second shift switching control is provided that is determined in advance as shift position switching control giving higher priority to responsiveness of switching of a shift position rather than higher output of the step motor, the shift switching control device of a vehicle drives the step motor in a one phase excitation mode or a two phase excitation mode and sets a rotation speed of the step motor to a predetermined second rotation speed higher than the first rotation speed. |
