| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque sensor that can detect a torque if any one of magnetic sensors goes wrong, and an electrically-driven power steering device using the torque sensor.SOLUTION: The torque sensor includes: a first magnetic sensor between a first magnetism collecting mechanism and a second magnetism collecting mechanism; a second magnetic sensor between the first and second magnetism collecting mechanisms and in a position same as or opposite to in the magnetic environment of the first magnetic sensor; and a third magnetic sensor between the first and second magnetism collecting mechanisms and in a position same as or opposite to in the magnetic environments of the first and second magnetic sensors, and outputs a torque generated in a rotating member based on output signals from the first, second, and third magnetic sensors.SELECTED DRAWING: Figure 5 |
