Suspension system for vehicle including composite leaf spring

A suspension system for a vehicle, the suspension system comprising:

• a composite leaf spring including a protective member which covers an outer surface of the composite leaf spring;
• and
• an abrasion-preventing pad coupled to the composite leaf spring and shielding the protective member, the abrasion-preventing pad including an upper pad and a lower pad,
• wherein the protective member and the abrasion-preventing pad are disposed at a portion of the composite leaf spring to which a U-bolt is mounted,
• wherein the upper pad and the lower pad are coupled to the composite leaf spring to respectively shield a top surface and a bottom surface of the composite leaf spring,
• wherein the upper pad and the lower pad are connected to each other such that connecting portions therebetween are disposed on side surfaces of the composite leaf spring,
• wherein the upper pad includes a first base portion having an upper protrusion for preventing slippage of the upper pad,
• wherein the lower pad includes a second base portion having a lower protrusion for preventing slippage of the lower pad, and
• wherein the U-bolt is mounted to the composite leaf spring, the upper protrusion is disposed in an insertion hole of a spring bracket, and the lower protrusion is inserted into an insertion hole of a U-bolt saddle, to prevent slippage of the upper pad and the lower pad.