ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,087, issued on Jan. 27, was assigned to TORC Robotics Inc. (Blacksburg, Va.).

"Prediction of road grade for autonomous vehicle navigation" was invented by Harish Pullagurla (Blacksburg, Va.), Zachary Miller (Blacksburg, Va.) and Andrew Cunningham (Blacksburg, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods of predicting a grade of a road upon which a vehicle is traveling are disclosed. An autonomous vehicle system can receive sensor data from a sensor measuring a response from at least one mechanical component of the autonomous vehicle as the autonomous vehicle navigates a road; detect a speed of the autonomous vehicle; determ...