C1/C2 Wet Traction Trailer

1) Overview

• The test equipment is a device for measuring the wet traction coefficient on wet surfaces of PCR(C1) and LTR tires (C2).
• The test equipment consists of a towing vehicle with a complete instrumentation system and a test trailer, which utilizes a two-axis converter to provide real-time vertical load and horizontal traction measurements.
• This test equipment is equipped with its own spray system to measure the coefficient of friction on dry and wet roads during tire test driving.

2) Compliance with Industry Standards

• ECE R117 : Uniform Provisions Concerning the Approval of Tire with Regard to Rolling Sound Emissions and to Adhesion on Wet Surfaces and/or to Rolling Resistance
• ISO 23671 : Passenger Car Tire-Passenger Car Tire-Method for Measuring Relative Wet Grip Performance-Loaded New C1 Tire
• ASTM E274 : Standard Test Method for Skid Resistance of Paved Surfaces Using a Full-Scale Tire

3) System Configuration

C1 Equipment Specification

C2 Equipment Specification