公开(公告)号：US20230332374A1

公开(公告)日：2023-10-19

申请号：US18026894

申请日：2021-10-07

Applicant: HITACHI, LTD.

Inventor： Shinji ISHIHARA ,  Ryu NARIKAWA ,  Akira KANAZAWA

IPC: E02F3/43 ,  E02F9/20 ,  E02F9/26

CPC classification number: E02F3/434 ,  E02F3/437 ,  E02F3/439 ,  E02F9/2033 ,  E02F9/262

Abstract: Upon determining that the work apparatus will not enter a prohibited area set on the basis of output of a second position calculator of a carrier, the system computes, on the basis of the result of a prediction computation, first input of the dynamic characteristic with which a distal end of the work apparatus approaches a target position set on the basis of the output of the second position calculator. Upon determining that the work apparatus will enter the prohibited area, the system computes second input of the dynamic characteristic with which the distal end targets and approaches a position that is closer to the target position than the position of the distal end of the work apparatus at a position different from the target position outside the prohibited area, and the system computes control input for controlling the operation of the loader.

公开(公告)号：US20250010861A1

公开(公告)日：2025-01-09

申请号：US18748299

申请日：2024-06-20

Applicant: Hitachi, Ltd.

Inventor： Shinji ISHIHARA ,  Masaki KANAI ,  Teppei SAITOH ,  Ryu NARIKAWA ,  Kazuya SUGIMOTO ,  Tadashi KOTANI

IPC: B60W30/18 ,  B60W60/00

Abstract: An autonomous control system includes a state amount acquiring unit that acquires the information of a control target, a control target position identification unit, a control target reaching region calculation unit, an outside information acquiring unit, a target distinguishing unit, a non-control target position identification unit, a non-control target reaching region calculation unit, an intersection region calculation unit, a control parameter setting unit, and an operation amount calculation unit that calculates a control input such that the value of an objective function J becomes a smaller value than the previous value.

公开(公告)号：US20240288847A1

公开(公告)日：2024-08-29

申请号：US18570707

申请日：2022-04-11

Applicant: Hitachi, Ltd.

Inventor： Shinji ISHIHARA ,  Wataru TANAKA ,  Kazuya SUGIMOTO

IPC: G05B19/408 ,  G05B19/404

CPC classification number: G05B19/408 ,  G05B19/404

Abstract: A control system comprises: a control quantity calculating unit for calculating, on the basis of an operation target of a controlled object, an operation evaluation index, and an operation model, a control quantity for driving the controlled object, which is a working machine; and a model updating unit for updating the operation model on the basis of a state quantity of the controlled object. The control system may additionally be provided with: a command converting unit for converting the control quantity into a command value for a drive unit of the controlled object; and a conversion updating unit for updating a conversion characteristic from the control quantity to the command value, on the basis of the command value and a response of the controlled object.