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:
Jun. 24, 2003
Filed:
Feb. 29, 2000
Philip H. Berger, Troy, MI (US);
Don Blandino, Sterling Heights, MI (US);
Leonid V. Bogdanov, Troy, MI (US);
TRW Inc., Lyndhurst, OH (US);
Abstract
A torque sensor ( ) for a power assist steering system ( ) for sensing applied torque between relatively rotatable input and output shafts ( ) which are connected by a torsion element ( ) comprises an input transformer (T ) and a rotary transmitter ( ) connected for rotation with the input shaft. The rotary transmitter ( ) has a plurality of transmitter pole segments ( ) defined by a plurality of slots ( ). The rotary transmitter ( ) includes a transmitter coil ( ) electrically connected with the input transformer (T ). The transmitter coil ( ) completely encircles each of the transmitter pole segments ( ) individually and has two sections disposed in each of the plurality of slots ( ). A rotary receiver ( ) is axially spaced from the rotary transmitter ( ) and is connected for rotation with the output shaft ( ). The rotary receiver ( ) includes a pair of one receiver coils ( ). Output transformers (T , T ) are respectively electrically connected with the receiver coils ( ).