Power steering device

Details Power steering device Power steering device

B - Operations, Transporting

62

D

B62D 5/00 (2006.01)

Patent

CA 2717470

A vehicle power steering device 1 comprises an input shaft 11, a torque sensor 2 that magnetically detects an input torque input into the input shaft 11, and a position sensor 5 that detects a reference rotation position of the input shaft 11. The position sensor 5 comprises a magnet 52, a first magnetic path forming member 67, 68, 69 that forms a first magnetic loop M for the magnet 52 in the reference rotation position of the input shaft 11, and a magnetic sensing element 56 disposed in the first magnetic loop M. By providing the position sensor 5 with a second magnetic path forming member 67 that forms a second magnetic loop N for the magnet 52 in any rotation position of the input shaft 11 other than the reference rotation position, magnetic flux from the magnet 52 is prevented from leaking to the torque sensor 2.

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