Semi-Active Suspension System Using Damper with Multi-Stage Structure and Its Control Method

摘要

The present invention relates to a suspension device for improving ride comfort and stability of an automobile by mitigating shocks and vibrations received from a road surface during driving of a vehicle and a control method thereof, The present invention relates to a semi-active suspension device for appropriately controlling the number of stages of a single-stage damper and a single-stage damper, and a control method thereof. A damper having a plurality of stages; A G sensor for measuring a vertical acceleration of the vehicle; An integrator for determining a velocity from the acceleration detected from the G sensor; An electronic control unit for receiving speed data from the integrator and calculating a variable for determining the number of steps of the shock absorber; And a step motor for controlling the number of stages of the damper under the control of the electronic control unit. The present invention provides a semi-active suspension using a damper having a multi-stage structure.