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:
Jan. 16, 2001
Filed:
Jun. 29, 1998
Martin Budaker, Heubach, DE;
Gerhard H{umlaut over (a)}gele, Hohenstadt, DE;
Willi Nagel, Schw{umlaut over (a)}bisch Gm{umlaut over (u)}nd, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An electronically assisted power steering system for motor vehicles contains a primary shaft (,), which is in operative connection with a manual steering wheel for transmitting the steering torque required for steering the steerable wheels of the vehicle. An auxiliary force can be exerted on the primary shaft (,) or the output member by a servo motor (,). A detection unit is used for non-contact detection of the direction and value of a steering angle and/or other movement-dependent values occurring at the primary shaft (,). The detection unit includes at least one pulse transmitter (,) connected with the primary shaft (,) or the output member, and at least one sensor (,). The pulse transmitter (,) is located in the interior of a housing (,), and the sensor (,) outside the housing (,). There is a gap between the pulse transmitter (,) and the sensor (,). The housing (,) is closed in the area located between the pulse transmitter (,) and the sensor (,).