US Patent Issued to TOYOTA JIDOSHA on Nov. 3 for "Failure determination device and failure determination method" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,692, issued on Nov. 3, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Failure determination device and failure determination method" was invented by Tatsunobu Hattori (Seto, Japan), Ryota Iwasaki (Okazaki, Japan) and Yutaro Kitano (Toyota, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fuel supply system includes a hydrogen engine, a fuel tank, a hydrogen pipe, and a first shut-off valve and a second shut-off valve that are shut-off valves for shutting off hydrogen gas. A failure determination device closes a shut-off valve when an operation that request to stop the hydrogen engine is performed, and executes a failure determination rou...