PHASE COMPENSATION METHOD AND DEVICE FOR CONTROL SYSTEM OF VEHICLE Russian patent published in 2003 - IPC

FIELD: control systems of motor vehicles. SUBSTANCE: increased accuracy of control is achieved by utilization of phase compensation filter which has nonlinear feedback of output signal to input. Error signal is formed to be more specific when there exists error between input and output signals of phase compensation filter. If absolute value of error signal exceeds specified value then level of nonlinear amplification of error signal in amplifier is selected. Input signal is passed through low-pass filter and is differentiated in differentiation unit, afterwards it is multiplied by level of nonlinear amplification to form signal of product which is added to input signal and summary signal is fed to traditional device limiting speed forming by that final output signal of phase compensation filter. EFFECT: increased accuracy of control. 8 cl, 2 dwg