Steering system for motor vehicles
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United States of America Patent
Stats
-
Sep 2, 2003
Grant Date -
Jul 18, 2002
app pub date -
Jan 17, 2002
filing date -
Jan 17, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A steering system functions in accordance with the 'steer by wire' concept and has a normal operating system without positive coupling between the steering handle and the steered vehicle wheels, as well as an emergency operating system, which functions with positive coupling between the steered vehicle wheels and the steering handle. An auxiliary operating system is additionally provided, which, in response to malfunctions of the normal operating system, assumes its tasks and, in a transitional phase, adapts the performance characteristics of the steering system to those of the emergency system, which is switched on upon conclusion of the transitional phase. Thus, at the transition from the normal operating system to the emergency operating system, the driver is given time to become accustomed to the other steering performance.
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