| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of a variable damping force damper capable of preventing to reach full-bump or full-rebound. SOLUTION: An ECU 7 calculates the absolute velocity x' in the vertical direction of a vehicle body 1, calculates the relative velocity y' as the time differential of the displacement y of a damper, determines the target current value of the sky hook control based on the ratio x'/y', and controls the damping force to be conducted to a coil of each damper 20. For example, when any displacement (y+y<SB>0</SB>) of dampers 20fl, 20fr is deviated from the predetermined ranges y<SB>2</SB>≤(y+y<SB>0</SB>)≤y<SB>1</SB>, full-stroke suppression target damping force setting units 82fl, 82fr set collision preventive target current values I<SB>Tfl(3)</SB>, I<SB>Tfr(3)</SB>according to the displacement (y<SB>fl</SB>+y<SB>ofl</SB>), the relative velocity y<SB>fl'</SB>, the displacement (y<SB>fr</SB>+y<SB>0fr</SB>) and the relative velocity y<SB>fr'</SB>of the dampers 20fl, 20fr, and regulate the total maximum value of the values of I<SB>Tfl(3)</SB>, I<SB>Tfr(3)</SB>in a target current value limit computation unit 87 to be≤3A. COPYRIGHT: (C)2010,JPO&INPIT
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