Development of High-quality Multi-Axial Sensing System (MASS) for Direct Measurement of 4 Directional Forces and Coefficient of Friction in Real Time

A high-performance sensor system called Multi-Axial Sensing System (MASS) has been established through a complete new concept, which is able to measure both the coefficient of friction and the four directional forces in real time. A strain sensor designed to meet the requirement of the system, was installed in the Neutral Spots and provided with good sensing properties. A precise static test machine and a road/tire test vehicle for evaluating the system have been also developed and manufactured. Enough performance has been completed to obtain the crosstalk of one directional force to the other directional forces in less than 1 percentage, while the measurement data had be obtained in the interval of 0.1 milliseconds precisely.