公开(公告)号：US20180302122A1

公开(公告)日：2018-10-18

申请号：US15770507

申请日：2016-11-28

Applicant: DENSO CORPORATION

Inventor： Chao CHEN ,  Shigeki OTSUKA

IPC: H04B3/493 ,  H04B3/23 ,  H04B3/06 ,  G01R31/11

Abstract: A transmission-path degradation detection apparatus comprises a transmission path of a transmission system, plural communication devices connected to the transmission path, a signal generation part provided in one communication device of the plural communication devices for generating a pseudo-communication signal, and a degradation detection part provided in one communication device of the plural communication devices for detecting a degradation of the transmission path based on a reception of the pseudo-communication signal passing through the transmission path.

公开(公告)号：US20240159791A1

公开(公告)日：2024-05-16

申请号：US18416769

申请日：2024-01-18

Applicant: DENSO CORPORATION

Inventor： Chao CHEN ,  Naoki YOSHIDA

IPC: G01P15/18 ,  G01P21/00

CPC classification number: G01P15/18 ,  G01P21/00

Abstract: An acceleration detection device includes an acceleration sensor that has a first detection axis and a second detection axis such that a yaw mounting angle between a vehicle reference axis and a virtual line is ±15 degrees or less, an acquisition section acquiring an acceleration in a direction of the first detection axis and an acceleration in a direction of the second detection axis, and a mounting angle calculation section calculating the yaw mounting angle from an angle calculation formula and the acceleration in the direction of the first detection axis and the acceleration in the direction of the second detection axis.