Electronically controlled suspension control system of vehicle using road surface information and control method using the same

An electronically controlled suspension control system of a vehicle, the electronically controlled suspension control system comprising:

• a road surface recognition unit configured to recognize a road surface disposed in front of the vehicle;
• a road surface profile determination unit configured to determine a profile of the road surface using information as to the road surface recognized by the road surface recognition unit;
• a behavior estimation and determination unit configured to estimate and determine a value of behavior of the vehicle according to the profile of the road surface determined by the road surface profile determination unit;
• a behavior information recording unit configured to pre-store information as to values of behaviors of the vehicle;
• an electronically controlled suspension (ECS) control unit configured to control a suspension of the vehicle;
• and
• a behavior determination and control unit connected to the behavior estimation and determination unit, the behavior information recording unit and the electronically controlled suspension (ECS) control unit,
• wherein the behavior determination and control unit is configured to compare a determined value from the behavior estimation and determination unit with pre-stored values of the behavior information recording unit, and configured to determine a behavior level of the vehicle, based on results of the comparison, and to send a control command according to a determined behavior level to the ECS control unit to control the suspension of the vehicle, and
• wherein the behavior information recording unit stores impulses and pitch rates according to different vehicle speeds through real vehicle experiments or simulations, in association with expected vehicle behaviors according to predetermined kinds of speed bumps.