Method for Active Actuation of a Servo Valve Assembly
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United States of America Patent
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Issued Date -
Jul 2, 2009
app pub date -
Nov 12, 2008
filing date -
Nov 13, 2007
priority date (Note) -
Abandoned
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Abstract
A method for active actuation of a servo valve assembly in an electrohydraulic vehicle steering system includes the following method steps: a) a steering-wheel angle and a steering wheel angular velocity are determined as input variables; b) a pinion angle and a pinion angular velocity are determined as further input variables; c) a setpoint is specified for the steering-wheel angle; d) the input variables and the steering-wheel angle setpoint each are multiplied by an amplification parameter; e) by summing the amplified input variables and the amplified steering-wheel angle setpoint, a control variable is determined for a servo valve actuator which actuates a valve component of the servo valve assembly; f) the servo valve actuator is actuated corresponding to the control variable.
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