公开(公告)号：US10153825B2

公开(公告)日：2018-12-11

申请号：US15117910

申请日：2015-02-06

Applicant: DENSO CORPORATION

Inventor： Tomoko Kodama ,  Takeshi Enosaki ,  Hiroto Tanaka

IPC: H04B7/155 ,  H04W4/04 ,  H04L29/08 ,  H04L12/407

Abstract: A vehicle-mounted control device, which communicates with a vehicle-mounted node via a common bus and follows a communication protocol that the lower the priority of a data frame output from the vehicle-mounted node, the longer a waiting time, includes: an arbitration device that suspends transmission of the transmission target frame to the bus when the priority of a transmission target frame is lower than an output data frame from the vehicle-mounted node, and continues transmission of the transmission target frame to the bus when the priority of the transmission target frame is higher than the output data frame; and a change device that changes the priority of the transmission target frame to be the highest of all data frames when the transmission of the transmission target frame is suspended for a prescribed time or longer as a result of arbitration control by the arbitration device.