| 摘要 |
PROBLEM TO BE SOLVED: To estimate acting forces by separating them respectively with a high degree of accuracy. SOLUTION: One magnet attached to a side wall part and a pair of magnetic sensors attached to a tire wheel are used. The pair of the magnetic sensors include a first pair of magnetic sensors located at positions intersecting a meridional plane passing the magnet and including a tire axis at an intersection at a right angle and located on a circumferential direction reference line extending in a tire circumferential direction, and moreover, arranged on both sides of the intersection, a second pair of magnetic sensors located at positions intersecting a cylindrical surface passing the magnet and concentric with the tire axis at an intersection at a right angle and located on a radial direction reference line extending in a tire radial direction, and moreover, arranged on both sides of the intersection, and a third pair of magnetic sensors located at positions intersecting a circumferential direction surface perpendicular to the tire axis passing the magnet at an intersection at a right angle and located on an axis direction reference line extending in a tire axis direction, and moreover, arranged on both sides of the intersection. A computing step of obtaining the acting forces based on the output of one of the magnetic sensors and the output of the other one, is included. COPYRIGHT: (C)2011,JPO&INPIT |
