| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular steering device capable of suppressing deviation of a steering angle due to oil leakage.SOLUTION: A vehicular steering device 1 includes: a power cylinder 11 coupled to a steering shaft 10; and a helm pump 12 for supplying hydraulic oil to the power cylinder 11 in accordance with the operation of a steering member 2. The vehicular steering device 1 also includes: a rotation angle differential mechanism 5 including a differential mechanism 7 for connecting an input shaft 3 connected to the steering member 2 and an output shaft 4 connected to the helm pump 12 to each other in a differentially rotatable manner, and a differential mechanism driving motor 8 for changing a rotation angle difference between the input shaft 3 and the output shaft 4 by driving the differential mechanism 7; a steering angle sensor 19 for detecting a steering angle θof the input shaft 3; a steering angle sensor 24 for detecting a steering angle θof a steering wheel 9; and an ECU 25 for controlling a rotation angle of the differential mechanism driving motor 8 so that the steering angle θis equal to a predetermined target steering angle.SELECTED DRAWING: Figure 1 |
