EXPERIMENTAL STUDY Of CORNERING PROEPRTIES

OF A TIRE ON AN icy and a Dry PAVEMENT

Peng Xudong  Meng Xiangkai

(College of Mechanical and Electronic Engineering, University of Petroleum, Dongying 257061)

Guo Konghui   Lu Dang

(State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun 130025)

Xie Youbai

(Theory of Lubrication and Bearing Institute, Xi'an Jiaotong University, Xi’an 710049)

Abstract: The test rig for tire traction on icy and snowy pavements is developed based on the existing static tire test rig for dry pavement. The cornering behavior of two pieces of radial tires with the same type and the same tread compounds but different tread patterns is investigated on the above two test rigs. Discussions are focused on the effects of ice surface temperature, normal load, inflation pressure and tire tread patterns on cornering behavior of a tire on ice and on dry pavements. The results showed that the tendencies of tire cornering force varied with slip angle on cold ice are similar to that of a tire on dry pavement, and different tread patterns can affect the cornering behavior of a tire, especially for a tire on ice. It is suggested that lowering inflation pressure to the accepted extent will be benefit for controllability and stability of an automotive.

Key words: Dry pavement  Icy pavement   Tire Cornering behavior  Test rig

CLC No: U461.2

国家自然科学基金(50275099)、中国博士后科学基金(2003034349)和山东省自然科学基金(Y2002F01)资助项目. Received 20030910, received in revised form 20040325