ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,953, issued on May 27.
"Snow friction determination by autonomous vehicle" was invented by Matthew Roy (Montreal).
According to the abstract* released by the U.S. Patent & Trademark Office: "An autonomous vehicle has a temperature sensor for sensing an air temperature or a road temperature, a processor communicatively connected to the temperature sensor to receive a signal from the temperature sensor, to process the signal and to generate an estimated instantaneous coefficient of friction between a tire of the vehicle and a snow-covered roadway, and a camera to detect salt and/or sand on the roadway and to apply a salt correction factor and/or a sand correction factor to the coef...