Electrically assisted automotive power steering system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 26, 2001
Grant Date -
N/A
app pub date -
May 1, 2000
filing date -
Oct 29, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrically assisted power steering system for motor vehicles includes an input shaft (5), which is operatively connected to a steering wheel, for transmitting a steering torque required to steer the vehicle wheels that are to be steered. An output member is operatively connected to the wheels to be steered. A servomotor (7), by which an auxiliary force can be exerted on the input shaft (5) or the output member, is disposed in the power steering system. The input shaft (5) and the output member are connected to one another via a torsion bar (4). A detection unit for detecting a steering torque acting on the input shaft (5) includes one magnetic ring (12, 14) each, connected to the input shaft (5) and the output member, and one associated sensor (13, 15) each. Each magnetic ring (12, 14) has the same number of magnetic pole pairs. Each magnetic ring (12, 14) is assigned a sensor (13, 15), structurally connected to the housing, by which both the steering torque and the rotary speed of the input shaft (5) are detected.
First Claim
Family
International Classification(s)
Cited Art Landscape
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