US Patent Issued to Regents of the University of Minnesota on Feb. 4 for "Compression ignition engine control" (South Korean, American Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,642, issued on Feb. 4, was assigned to Regents of the University of Minnesota (Minneapolis).

"Compression ignition engine control" was invented by Rajesh Rajamani (Saint Paul, Minn.) and Woongsun Jeon (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of estimating in-cylinder pressure includes receiving a vibration signal from a vibration sensor mounted proximate a compression ignition (CI) engine, receiving angular position information for the CI engine, and determining in-cylinder pressure based on the angular position information and on a combustion component of the vibration signal."

The patent was filed on Sept. 12, 20...