Denso Corporation

Yuji Nishikawa

Kazuhiro Nakashima

Toshiyuki Konishi

An automatic locking system for vehicles includes an electronic control unit. If it is determined that an electronic key is not located in a communication area of an inside-cabin transmitter, the control unit determines whether or not the electronic key is located nearby. As a result, if the electronic key is determined as being located nearby, followed later by a determination that the electronic key is not located nearby, comparison history is stored in a memory. If it is determined that comparison history is stored in the memory and four entry-and-exit doors are closed, the four entry-and-exit doors are locked.

Growing community of inventors

Chiryu, Japan

Yuji Nishikawa