重量物運搬車

Japanese Patent JP7205834

B2

A heavy goods vehicle includes a displacement calculator that calculates a displacement by multiplying an arc length per unit rotation angle of the outer circumference of a specified tire by the first physical quantity, a vehicle position estimator that estimates a vehicle position using the displacement, and a memory that stores a correlation between a second physical quantity corresponding to a loading weight and an arc length per predetermined rotation angle at the outer circumference of the specified tire. The displacement calculator refers to the correlation to calculate a current arc length per unit rotation angle at the outer circumference of the specified tire from the second physical quantity corresponding to the loading weight, and calculates the displacement by multiplying the first physical quantity detected by the rotation amount detector by the current arc length per unit rotation angle.

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Hideki Hirayama
Kaneda Shusuke
Shigeki Kumagai
Shinji Namba
Toshiyuki Ohara
Hidee Tanaka
Sakai Ai

JP2020075843A

January 17, 2023

April 22, 2020

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Nichijo Co., Ltd.
Wave Technology Co., Ltd.
jfe Steel Corporation

G01C21/16; G01C21/28; G08G1/0969

JP7035562A
JP2008523360A

US20170347624

Aiko Patent Office, a patent business corporation

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