公开(公告)号：US20230398897A1

公开(公告)日：2023-12-14

申请号：US18249289

申请日：2021-09-22

Applicant: HITACHI ASTEMO, LTD.

Inventor： Toshihiko KANEDA ,  Keisuke SUZUKI

IPC: B60L53/66 ,  B60L53/62

CPC classification number: B60L53/66 ,  B60L53/62

Abstract: A relay control device controls a relay circuit mounted on a vehicle and connecting an inverter circuit that drives a motor mounted on the vehicle and a battery, the relay control device including: an end detection unit that detects that traveling of the vehicle has ended; and a determination unit that determines a possibility that power is supplied to the battery from an outside, and controls a time taken from when traveling of the vehicle ends to when the relay circuit is turned off based on the determination.

公开(公告)号：US20220332366A1

公开(公告)日：2022-10-20

申请号：US17596440

申请日：2020-05-20

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroki SONODA ,  Tomoaki FUJIBAYASHI ,  Yoshiji HASEGAWA ,  Kazuya Takahashi ,  Toshihiko KANEDA

IPC: B62D6/00 ,  B62D7/15

Abstract: A steering control device, a steering control method, and a steering control system according to the present invention determines a rear wheel steering angle control command for returning a rear wheel steering angle to a predetermined steering angle earlier than a front wheel steering angle when steering wheel operation (that is, operation of a steering wheel) shifts from a state of additional turning to a state of cutback turning, in steering control that steers a rear wheel steering angle of a vehicle in opposite-phase with respect to a front wheel steering angle, and outputs the determined rear wheel steering angle control command to a rear wheel steering device, so that hysteresis of a yaw rate is reduced or eliminated, reducing or eliminating a sense of discomfort given to a driver.