Experimental and Numerical Studies on Tire Tread Block Friction Characteristics Based on a New Test Device

Table 3

Average friction coefficients between ice and tread.

Road type	Tread type	Average friction coefficient
		−2°C	Std Dev	−10°C	Std dev	−15°C	Std dev
Ice	No pattern	0.19	0.0124	0.23	0.0127	0.39	0.0139
Ice	RSD2 pattern	0.21	0.0131	0.27	0.0134	0.41	0.0132
Ice	RSD2-A pattern	0.17	0.0125	0.25	0.0137	0.37	0.0134
Ice	RSD2-B pattern	0.18	0.0132	0.28	0.0128	0.38	0.0133