US Patent Issued to NSK on July 7 for "Electric friction engagement device, method for detecting touch point therefor, and method for detecting abnormality thereof" (Japanese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,494, issued on July 7, was assigned to NSK LTD. (Tokyo).

"Electric friction engagement device, method for detecting touch point therefor, and method for detecting abnormality thereof" was invented by Akihiro Yamamoto (Fujisawa, Japan) and Shingo Kimura (Fujisawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The electric friction engagement device has a function of detecting a phase in a rotational direction of a drive cam when an output torque or current value of a shift motor begins to increase at a rate of increase equal to or greater than a first threshold value as a piston touch point and a function of detecting a phase in the rotational ...