公开(公告)号：US20240001910A1

公开(公告)日：2024-01-04

申请号：US18039869

申请日：2021-11-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Masaru YAMASAKI ,  Takahiro ITO ,  Kenta MAEDA ,  Shuji OHSHITA ,  Kentarou UENO

IPC: B60W30/02 ,  B60W50/06

CPC classification number: B60W30/02 ,  B60W50/06 ,  B60W2540/00 ,  B60W2552/00 ,  B60W2520/18 ,  B60W2520/14 ,  B60W2520/16 ,  B60W2520/125

Abstract: A vehicle movement control device generates a target motion vector that falls within a desired controllable range in a motion space, and integrally controls a plurality of actuators to realize a vehicle movement defined by the target motion vector, thereby improving ride comfort and operation feeling. The vehicle movement control device that controls the plurality of actuators in accordance with a travel state, the vehicle movement control device including: a vehicle movement planning unit configured to generate a target motion vector based on input travel state information; an operation amount arbitration unit configured to calculate an operation amount of each actuator based on the target motion vector; and an actuator control unit configured to control each actuator based on the operation amount, in which the vehicle movement planning unit generates the target motion vector within a controllable range in a motion space acquired from the operation amount arbitration unit.

公开(公告)号：US20250162572A1

公开(公告)日：2025-05-22

申请号：US18841298

申请日：2022-10-12

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta MAEDA ,  Takahiro ITO ,  Kentarou UENO ,  Shuji OHSHITA

IPC: B60W30/02 ,  B60W40/08 ,  B60W50/00 ,  B60W50/14 ,  G06V20/59 ,  G06V40/10

Abstract: To provide a vehicle control device and a vehicle control method that take into consideration individual differences and the effect of vehicle motion, not only in the horizontal direction but also in the front-rear direction, on the head movement of a passenger, and further reduce the head movement of the passenger through vehicle motion that coordinates the front-rear and horizontal directions. The vehicle control device includes: a head movement prediction model that finds, relative to the head movement of a passenger in a first direction caused by vehicle motion in the first direction, the change in the head movement of the passenger in the first direction caused by the vehicle motion in a second direction different from the first direction; and a vehicle motion generation unit that generates the vehicle motion on the basis of the head movement prediction model.

公开(公告)号：US20250108788A1

公开(公告)日：2025-04-03

申请号：US18832879

申请日：2022-10-25

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta MAEDA ,  Takahiro ITO ,  Kentarou UENO ,  Shuji OHSHITA

IPC: B60W30/02 ,  B60W40/08 ,  B60W50/00

Abstract: Provided is a vehicle integrated control device capable of controlling a posture of a vehicle so as to prevent in advance an occupant who has high sensitivity to motion sickness from suffering from the motion sickness. The vehicle integrated control device includes a target value generation unit that generates or acquires a control target value of a movement of a vehicle; a motion sickness sensitivity acquisition unit that acquires a motion sickness sensitivity index that is a quantitative value that is likeliness of incidence of motion sickness that differs depending on an occupant characteristic with respect to at least one occupant riding on the vehicle; and a target value correction unit that corrects the control target value based on the control target value and the motion sickness sensitivity index.

公开(公告)号：US20240367640A1

公开(公告)日：2024-11-07

申请号：US18562855

申请日：2022-04-26

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta MAEDA ,  Masaru YAMASAKI ,  Kentarou UENO ,  Shuji OHSHITA

IPC: B60W30/02 ,  B60W40/08

Abstract: A vehicle integrated control device improves ride comfort and prevents the onset of motion sickness. The vehicle integrated control device acquires a target momentum of a control axis related to a driving task of the vehicle and generates a first motion parameter and a second motion parameter different from the first motion parameter that is based on the first motion parameter to optimize a sensitivity index. A limit generation unit generates a motion limit amount of the second motion parameter based on the first motion parameter and an operation range of an actuator, a final target generation unit that corrects the second motion parameter based on the motion limit amount, and an operation amount assignment unit that determines an operation amount of an actuator based on the first motion parameter and the second motion parameter corrected by the final target generation unit.

公开(公告)号：US20240278772A1

公开(公告)日：2024-08-22

申请号：US18569391

申请日：2022-05-18

Applicant: Hitachi Astemo, Ltd.

Inventor： Masaru YAMASAKI ,  Kenta MAEDA ,  Shuji OHSHITA ,  Kentarou UENO

IPC: B60W30/045 ,  B60W30/12

CPC classification number: B60W30/045 ,  B60W30/12

Abstract: A vehicle motion control device includes: an actuator characteristic change estimation unit configured to estimate a characteristic change of an actuator at a future time from a current time; a controllable range estimation unit configured to calculate a controllable range of a vehicle motion from a characteristic change calculated by the actuator characteristic change estimation unit, a target track of a vehicle, and a current vehicle state; a vehicle motion planning unit configured to create a motion plan within a controllable range calculated by the controllable range estimation unit; an evaluation value calculation unit configured to calculate an evaluation value based on a motion plan created by the vehicle motion planning unit; and a determination unit configured to determine whether or not an evaluation value calculated by the evaluation value calculation unit is minimum.

公开(公告)号：US20230415775A1

公开(公告)日：2023-12-28

申请号：US18037658

申请日：2021-11-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Kenta MAEDA ,  Masaru YAMASAKI ,  Takahiro ITO ,  Kentarou UENO ,  Shuji OHSHITA

IPC: B60W60/00 ,  B60W50/10 ,  B60W40/08

CPC classification number: B60W60/0013 ,  B60W50/10 ,  B60W40/08 ,  B60W2540/18 ,  B60W2540/221

Abstract: A vehicle integrated-control device generates internal commands that supplement insufficient external commands in an environment where external commands are insufficient and that integrally controls each actuator to improve the operational feeling of the driver and occupant ride comfort. The vehicle integrated-control device integrally controls actuators mounted in a vehicle to control the vehicle using six control axes which are front-rear, left-right, up-down, roll, pitch, and yaw control axes, and comprises a command value acquisition unit that acquires an external command corresponding to at least one and not more than six control axes for realizing a desired driving operation; a command value supplementation unit that, based on the external command, generates an internal command corresponding to a control axis other than the control axes corresponding to the external command; and an operation amount control distribution unit that controls the plurality of actuators based on the external command and the internal command.