Hitachi Construction Machinery Co., Ltd.

Kcm Corporation

Tomohiro Ueda

Masaki Yoshikawa

Hiroshi Sakamoto

Takaaki Ishii

Isamu Aoki

Takayoshi Murahashi

Shigeki Tokita

Koji Shimazaki

Keiichirou Nakamura

Shunya Kokubo

Takashi Ishii

Masakazu Kaitou

In an unloaded state of the bucket (), a control device () calculates an unloaded moment (M) around a hinge pin G from the pressure of the lift arm cylinder that is detected by pressure sensors (), the angle of a lift arm that is detected by a lift arm angle sensor, and dimension data extracted from a vehicle body information database (). In a loaded state of the bucket, the control device calculates a loaded moment (M) around the hinge pin G from the pressure of the lift arm cylinder, the angle of the lift arm, and the dimension data extracted from the vehicle body information database. The control device calculates the load (W) on the bucket by dividing the difference between the unloaded moment and the loaded moment by the horizontal distance (L) between the hinge pin and the gravity center position of the bucket.

Wheel loader and bucket load calculation method

Construction machine display screen with graphical user interface

Growing community of inventors

Hyogo, Japan

Tomohiro Ueda