公开(公告)号：US20210347409A1

公开(公告)日：2021-11-11

申请号：US17272833

申请日：2019-08-02

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi NAKANO ,  Tomoaki FUJIBAYASHI ,  Kazuya TAKAHASHI

IPC: B62D13/00 ,  B62D7/15 ,  B62D6/00

Abstract: A steering control apparatus, a steering control method, and a steering control system according to the present invention output an instruction for generating a periodic yaw moment opposite in phase from an rolling motion occurring on a hitch vehicle including a vehicle and a trailer to a rear-wheel steering apparatus configured to control a steering angle of a rear wheel of the vehicle.

公开(公告)号：US20220340018A1

公开(公告)日：2022-10-27

申请号：US17859289

申请日：2022-07-07

Applicant: Hitachi Astemo, Ltd.

Inventor： Satoshi KANEKO ,  Keisuke SUZUKI ,  Kazuya TAKAHASHI

IPC: B60L15/20 ,  B60T8/175 ,  B60W10/08 ,  B60W10/184

Abstract: A control apparatus for a vehicle includes an addition portion that outputs a post-compensation driver request torque, which is acquired by adding a driving torque (a loss compensation driving torque) lost due to a braking torque provided to a wheel on a low-μ road surface side according to a BLSD request hydraulic pressure calculated by a BLSD request hydraulic pressure calculation processing portion to a driver request torque calculated by a driver request torque calculation processing portion, to a motor.

公开(公告)号：US20220001921A1

公开(公告)日：2022-01-06

申请号：US17291892

申请日：2019-10-30

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroshi NAKANO ,  Tomoaki FUJIBAYASHI ,  Kazuya TAKAHASHI

IPC: B62D6/00 ,  B62D13/00

Abstract: In a steering control device, method, and system, a command is calculated for generating a periodical yaw moment having a phase opposite to oscillating motion based on information on oscillating motion which occurs in a vehicle combination composed of a vehicle and a trailer, and based on the calculated command, a first steering angle command for controlling a steering angle of the front wheels of the vehicle is output to a front wheel steering control unit and a second steering angle command for controlling a steering angle of the rear wheels of the vehicle is output to a rear wheel steering control unit, so that the oscillating motion can be suppressed.