| 摘要 |
A tiltable steering column assembly comprises a lower support column rigidly mounted on the vehicle structure and an upper support column tiltably mounted on the lower support column for user selected pivotal movement about a generally horizontal axis transverse to the vehicle. A lower steering shaft is received through the lower support column. An upper steering shaft is received through the upper support column and journalled on it for rotation in a pair of axially spaced bearings. A swivel joint interconnects the upper and lower steering shaft and is operative for transmitting torque between them. A magneto elastic active element is fixedly attached to the upper shaft at a location axially intermediate the pair of bearings. The element is operative to be torsionally strained by application of torque to the upper shaft. An pick-up coil is disposed on the upper column adjacent the magnetic elastic element and is operative to detect torsional strain of the element and provide an electrical signal indicative of it. |
