| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicle-wheel bearing device with sensors capable of calculating and outputting an accurate load using a load estimation coefficient according to use conditions of a bearing.SOLUTION: A vehicle-wheel bearing 100 comprises: a plurality of sensors 20 for detecting a load applied thereto; signal processing means 31 for processing an output signal from the sensors to generate a signal vector; and load calculation processing means 32 for calculating a load applied to a vehicle wheel on the basis of the signal vector. The load calculation processing means 32 includes: a coefficient conversion processing unit 33 for calculating an actual load estimation coefficient MC, which is a load estimation coefficient in a state of actual attachment to a vehicle, on the basis of a standard load estimation coefficient MB that is a standard load estimation coefficient of the predetermined bearing 100; and a load calculation unit 34 for calculating a load applied to the vehicle wheel on the basis of the actual load estimation coefficient MC calculated by the coefficient conversion processing unit 33 and the signal vector. |
