公开(公告)号：US20240301657A1

公开(公告)日：2024-09-12

申请号：US18284163

申请日：2022-01-19

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takeshi KAMIMAE ,  Yoshihide NAKAE ,  Youichirou KIMURA ,  Takashi MAEDA

IPC: E02F9/20 ,  E02F9/26

CPC classification number: E02F9/2045 ,  E02F9/26

Abstract: A travel system for a work machine is provided that can facilitate recording of courses actually traveled by the work machine. A travel system for a motor grader includes a traveling apparatus and a controller. The traveling apparatus prompts the motor grader to travel. The controller prompts automatic recording of an actually traveled course which is a course actually traveled by the motor grader.

公开(公告)号：US20240218634A1

公开(公告)日：2024-07-04

申请号：US18558219

申请日：2022-05-18

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takashi MAEDA ,  Yoshihide NAKAE

IPC: E02F9/22 ,  B62D1/22 ,  B62D5/09 ,  E02F9/20

CPC classification number: E02F9/225 ,  B62D1/22 ,  B62D5/091 ,  E02F9/2004 ,  E02F9/2203 ,  E02F9/2285 ,  E02F9/2292

Abstract: A work machine includes a vehicle body, a traveling wheel supported by the vehicle body, an actuator to change a steering angle of the traveling wheel from a neutral angle to left or right, a first steering member, and a controller. The first steering member is operable between a left steering range, a right steering range, and a neutral range. The controller controls the actuator so that the steering angle of the traveling wheel is changed to the left and right at speeds that correspond to operating amounts of the first steering member when the first steering member is positioned in the left and right steering ranges, respectively. The controller controls the actuator so that the steering angle returns to the neutral angle when the first steering member is positioned in the neutral range.

公开(公告)号：US20240218633A1

公开(公告)日：2024-07-04

申请号：US18558238

申请日：2022-05-18

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takashi MAEDA ,  Yoshihide NAKAE ,  Yasuhisa ASANO ,  Takeo MURATA

IPC: E02F9/20 ,  E02F3/76

CPC classification number: E02F9/2087 ,  E02F3/7663

Abstract: A work machine includes a vehicle body, traveling wheel, steering member, actuator, operation sensor, steering angle sensor, direction sensor, and a controller. The steering member is operable between left, right, and neutral steering ranges. The actuator sets a steering angle of the traveling wheel to a neutral angle when the steering member is in the neutral range, and changes the steering angle to left or right in response to operation of the steering member. The controller acquires operation, angle, and direction signals from the sensors. The controller determines whether the steering angle has returned to the neutral angle when the steering member has been operated from the left or right steering ranges to the neutral range. The controller determines the traveling direction when the steering angle has returned to the neutral angle, as a target direction. The controller controls the actuator to hold the traveling direction in the target direction.

公开(公告)号：US20240151001A1

公开(公告)日：2024-05-09

申请号：US18284150

申请日：2022-01-19

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takashi MAEDA ,  Yoshihide NAKAE ,  Youichirou KIMURA

IPC: E02F9/20 ,  E02F3/76

CPC classification number: E02F9/2087 ,  E02F3/76

Abstract: A steering mechanism is used to navigate the direction of travel of a motor grader. A directional correction input device is manipulatable by an operator. A controller, during automatic control of the steering operation by the steering mechanism, controls the steering mechanism in a manner that the direction of travel is adjustable leftward or rightward through a certain angle based on an operation command inputted through the directional correction input device.

公开(公告)号：US20220325499A1

公开(公告)日：2022-10-13

申请号：US17638244

申请日：2020-07-07

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takeshi KAMIMAE ,  Yukihisa SAKAI

IPC: E02F3/84 ,  B62D12/00

Abstract: A motor grader representing a work vehicle includes a steering mechanism and a control unit. The control unit generates a travel path of the motor grader based on a position and an azimuth of the motor grader and a direction of travel of the motor grader and controls the steering mechanism such that the motor grader travels along the generated travel path.

公开(公告)号：US20220298749A1

公开(公告)日：2022-09-22

申请号：US17638236

申请日：2020-07-07

Applicant: KOMATSU LTD.

Inventor： Takuya SONODA ,  Takeshi KAMIMAE ,  Yukihisa SAKAI

IPC: E02F9/20 ,  B62D6/00 ,  B62D5/065 ,  B62D11/06

Abstract: A motor grader representing a work vehicle includes a steering mechanism and a control unit. The control unit controls the steering mechanism to maintain constant, a rate of change in a direction of travel per unit travel distance of the motor grader.