The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
Feb. 21, 2002
John F. Laidlaw, Dearborn, MI (US);
Stephen T. Hung, Grosse Pointe Park, MI (US);
Bruce A. Bowling, Redford, MI (US);
Visteon Global Technologies, Inc., Dearborn, MI (US);
Abstract
A torque sensing device includes a housing, an input shaft, and a pinion shaft. A torsion bar interconnects and allows rotation of the shafts relative to one another. The shafts are supported to allow axial movement within the housing. A plurality of magnets are spaced radially about the input shaft, and a stator assembly mounted to the pinion shaft extend axially over the magnets. A pair of flux rings is supported by the housing and extend annularly around the stator assembly at a radial distance from the stator assembly. Each one of a pair of flux brushes is magnetically proximal to one of the flux rings. The flux brushes are spaced apart from one another by a gap. A pair of sensors within the gap measures the direction and magnitude of a magnetic flux passing between the flux brushes.