| 摘要 |
PROBLEM TO BE SOLVED: To provide a hub unit with a sensor, capable of finding precisely the tire treading load, and also capable of finding the lateral-directional and longitudinal-directional tire treading loads, taken out independently of each other. SOLUTION: A sensor unit 2 has three magnetostrictive sensors 8 for detecting an anti-magnetostrictive effect. The three magnetostrictive sensors 8 comprise the magnetostrictive sensor for detecting the lateral-directional tire treading load attached to a body side track member 3 to measure a tension strain in the uppermost part of an inner wheel 17, and the two magnetostrictive sensors for detecting the longitudinal-directional tire treading load, attached to the body side track member 3 longitudinal-directionally opposedly, to measure the tension strains in the uppermost part and the lowermost part of the inner wheel 17. The lateral-directional treading load is detected, based on an output from the magnetostrictive sensor for detecting the lateral-directional tire treading load, and the longitudinal-directional tire treading load is detected, based on outputs from the magnetostrictive sensors for detecting the longitudinal-directional tire treading load. COPYRIGHT: (C)2005,JPO&NCIPI
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