公开(公告)号：US12152962B2

公开(公告)日：2024-11-26

申请号：US17763448

申请日：2020-05-11

Applicant: A&D Company, Limited

Inventor： Yukihisa Itoh ,  Yoichi Kaneko ,  Kazuki Kido ,  Kazuki Okamoto ,  Toru Tsuda

IPC: G01M17/02

Abstract: A tire testing apparatus performs the test by rotating a tire while the tire is in contact with a drum. A plurality of sensors are provided on the outer circumferential surface of the drum and are arranged side by side along a widthwise direction of the drum, thereby measuring the ground contact forces at the ground contact position with the tire. A calculation unit obtains, based on the ground contact forces measured by the sensors, a displacement amount Dy of the ground contact position in the widthwise direction and a change amount ΔFy of the ground contact force Fy in the widthwise direction which corresponds to the displacement amount Dy, thereby calculating the lateral stiffness sharing rate Ky rib on the basis of the displacement amount Dy and the change amount ΔFy.

公开(公告)号：US10082446B2

公开(公告)日：2018-09-25

申请号：US15509250

申请日：2016-08-25

Applicant: A&D COMPANY, LIMITED

Inventor： Yukihisa Ito ,  Kazuki Kido ,  Tatsuo Ichige ,  Masaaki Banno

IPC: G01M17/02 ,  B60C25/00 ,  B60C25/05

CPC classification number: G01M17/02 ,  B60C19/00 ,  B60C25/007 ,  B60C25/0551

Abstract: Provided is a tire testing apparatus capable of accurately and easily measuring a load which a tire receives from a road surface. The tire testing apparatus includes a plate buried in a road surface with which a tire is in contact, at least one ground-contact-force sensor measuring a ground-contact force during a contact of the tire, and at least one plate sensor measuring a load applied to the plate. According to the tire testing device, a ground-contact force of the tire can be measured by the ground-contact-force sensor and a load which the tire applies to the plate can be measured by the plate sensor.

公开(公告)号：US20220291087A1

公开(公告)日：2022-09-15

申请号：US17763448

申请日：2020-05-11

Applicant: A&D Company, Limited

Inventor： Yukihisa Itoh ,  Yoichi Kaneko ,  Kazuki Kido ,  Kazuki Okamoto ,  Toru Tsuda

IPC: G01M17/02

Abstract: A tire testing apparatus performs the test by rotating a tire while the tire is in contact with a drum. A plurality of sensors are provided on the outer circumferential surface of the drum and are arranged side by side along a widthwise direction of the drum, thereby measuring the ground contact forces at the ground contact position with the tire. A calculation unit obtains, based on the ground contact forces measured by the sensors, a displacement amount Dy of the ground contact position in the widthwise direction and a change amount ΔFy of the ground contact force Fy in the widthwise direction which corresponds to the displacement amount Dy, thereby calculating the lateral stiffness sharing rate Ky rib on the basis of the displacement amount Dy and the change amount ΔFy.