公开(公告)号：US20240246562A1

公开(公告)日：2024-07-25

申请号：US18559928

申请日：2022-04-26

申请人： Hitachi Astemo, Ltd.

发明人： Shingo NASU ,  Kentarou UENO ,  Masaru YAMASAKI

IPC分类号： B60W60/00 ,  G01C21/34

CPC分类号： B60W60/001 ,  G01C21/34 ,  B60W2556/40 ,  B60W2720/10

摘要： The present invention provides a vehicle motion control device configured to set speed of an own vehicle in consideration of not only nearby information of the own vehicle but also long-distance information of the own vehicle, so as to reduce an unexpected behavior of the vehicle occurring during travel. The vehicle motion control device includes: a nearby information acquisition unit configured to acquire nearby information of a vehicle; a long-distance information acquisition unit configured to acquire long-distance information of the vehicle; and a speed planning unit configured to generate a speed command value as a travel target of the vehicle, based on the nearby information and the long-distance information.

公开(公告)号：US20240034328A1

公开(公告)日：2024-02-01

申请号：US18265804

申请日：2021-11-10

申请人： Hitachi Astemo, Ltd.

发明人： Shingo NASU ,  Kentarou UENO ,  Masaru YAMASAKI

IPC分类号： B60W40/072 ,  G08G1/16 ,  B60W40/107 ,  B60W40/109 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20

CPC分类号： B60W40/072 ,  G08G1/167 ,  B60W40/107 ,  B60W40/109 ,  B60W10/04 ,  B60W10/18 ,  B60W10/20 ,  B60W2520/10 ,  B60W2552/30 ,  B60W2710/18 ,  B60W2710/20 ,  B60W2720/10 ,  B60W30/045

摘要： The present invention provides a vehicle motion control device capable of reducing vibration generated in a running vehicle and suppressing the occurrence of an unstable behavior of the vehicle. A vehicle motion control device that controls a motion of a vehicle includes an operation management unit that generates traveling status information of the vehicle, a traveling track generation unit that generates a traveling track of the vehicle based on the traveling status information, and a travel control unit that controls driving, braking, and steering of the vehicle based on the traveling track. The traveling track generation unit includes a course planning unit that generates a target course based on the traveling status information and a speed planning unit that plans a target speed by calculating a longitudinal acceleration and a lateral acceleration whose composite acceleration has one peak when the vehicle travels on each curve in the target course.

公开(公告)号：US20240001910A1

公开(公告)日：2024-01-04

申请号：US18039869

申请日：2021-11-10

申请人： Hitachi Astemo, Ltd.

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

IPC分类号： B60W30/02 ,  B60W50/06

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

摘要： 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：US20230227068A1

公开(公告)日：2023-07-20

申请号：US18009840

申请日：2021-04-14

申请人： Hitachi Astemo, Ltd.

发明人： Shingo NASU ,  Ryusuke HIRAO ,  Kentarou UENO ,  Masaru YAMASAKI

IPC分类号： B60W60/00 ,  B60W40/107 ,  B60W40/109 ,  B60W40/06

CPC分类号： B60W60/0013 ,  B60W60/0015 ,  B60W40/107 ,  B60W40/109 ,  B60W40/06

摘要： An object of the present invention is to provide a vehicle motion control device that generates a travel path capable of realizing comfortable ride comfort and high safety with a small physical quantity related to a vehicle behavior such as a longitudinal acceleration, a lateral acceleration, and a vertical acceleration generated when a vehicle passes or avoids with respect to a predetermined region such as unevenness on a course of a vehicle. Therefore, the vehicle motion control device includes a vehicle behavior prediction portion that predicts a physical quantity related to a vehicle behavior that occurs when a vehicle maintains a reference route toward a predetermined region on a course and a physical quantity related to a vehicle behavior that occurs when the vehicle shifts to an avoidance route for avoiding the predetermined region, and a path generation portion that generates a travel path defined by the reference route or the avoidance route in which the physical quantity is smaller than a defined value.

公开(公告)号：US20240278772A1

公开(公告)日：2024-08-22

申请号：US18569391

申请日：2022-05-18

申请人： Hitachi Astemo, Ltd.

发明人： Masaru YAMASAKI ,  Kenta MAEDA ,  Shuji OHSHITA ,  Kentarou UENO

IPC分类号： B60W30/045 ,  B60W30/12

CPC分类号： B60W30/045 ,  B60W30/12

摘要： 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

申请人： Hitachi Astemo, Ltd.

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

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

CPC分类号： B60W60/0013 ,  B60W50/10 ,  B60W40/08 ,  B60W2540/18 ,  B60W2540/221

摘要： 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.

公开(公告)号：US20230137911A1

公开(公告)日：2023-05-04

申请号：US17918019

申请日：2021-04-12

申请人： Hitachi Astemo, Ltd.

发明人： Shingo NASU ,  Kentarou UENO ,  Ryusuke HIRAO ,  Masaru YAMASAKI

IPC分类号： B60W60/00 ,  B60W40/072

摘要： A vehicle motion control device generates a travel route where behavior of a vehicle traveling on a curve is small and comfortable ride is achieved even when the vehicle travels on a continuous curve. The control device includes a travel track generation unit that generates, based on information on a curvature of a first curve on a lane existing in a traveling direction of a vehicle and a curvature of a second curve connected to the first curve, a travel route by setting curvature of the travel route at a time of traveling on a curve having a smaller curvature between the first and second curves to be larger than the curvature of the curve and setting a curvature of the travel route at a time of traveling on a curve having a larger curvature between the first and second curves to be smaller than the curvature of the curve.

公开(公告)号：US20220097758A1

公开(公告)日：2022-03-31

申请号：US17425379

申请日：2019-08-19

申请人： Hitachi Astemo, Ltd.

发明人： Shinya KASAI ,  Kotaro SHIINO ,  Junya TAKAHASHI ,  Masaru YAMASAKI

IPC分类号： B62D6/00

摘要： An object of the present invention is to provide a steering control device capable of reducing a steering amount while securing operability of a driver according to a traveling condition. A steering control device 61 forming a steer-by-wire system, which has no physical connection between a steering shaft by a driver and an actual steered angle of a vehicle wheel, the steering control device including an actual steered angle calculation unit 74 that determines the actual steered angle based on a steering angle and a steering torque generated on the steering shaft. The actual steered angle calculation unit 74 controls the actual steered angle based on the steering torque in a region where the steering angle is equal to or smaller than a predetermined value, and controls the actual steered angle based on a parameter different from the steering torque when the steering angle is larger than the predetermined value or a changed steering torque gain from when the steering angle is smaller than the predetermined value.