ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,806, issued on June 24, was assigned to Xiamen Yaxon Zhillian Technology Co. Ltd. (Fujian, China).
"Control method for hydraulic retarder, and control system" was invented by Yankai Tu (Fujian, China) and Yuan Chen (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a control method for a hydraulic retarder, and a control system. The method includes: acquiring a slope of a downhill road segment ahead of a vehicle; determining whether an absolute value of the slope is greater than an absolute value of a slope for which a braking force is not required; if so, predicting a required braking force and oil amount for the vehicle at...