Title:
WHEEL LOAD ESTIMATION DEVICE AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/079973
Kind Code:
A1
Abstract:
According to the present invention, a center-of-gravity inertia value calculation unit (36, 236) calculates information about the center of gravity of a vehicle including a load, calculates an inertia tensor (Jall) including the inertial spindle around the center of gravity of the vehicle and the inertial product, and a wheel load fluctuation calculation unit (40, 240) calculates the fluctuation amount of a wheel load, on the basis of the inertia tensor (Jall), angular velocities (P, Q, R) around three axes of the vehicle including the load, angular acceleration (P・, Q・, R・), front-rear and lateral accelerations of the vehicle (Gxall, Gyall), a vehicle weight (Mall) including the load, and information about the center of gravity of the vehicle including the load (hR_CG , hCG, tl, tr, lf, lr), and a wheel load estimation unit (42, 242) estimates the wheel load, on the basis of the fluctuation amount and the static load of the wheel load.
Inventors:
HATTORI TATSUYA (JP)
YAMAGUCHI HIROYUKI (JP)
MORI DAIKI (JP)
HATTORI YOSHIKAZU (JP)
SUZUKI NORIYOSHI (JP)
YAMAGUCHI HIROYUKI (JP)
MORI DAIKI (JP)
HATTORI YOSHIKAZU (JP)
SUZUKI NORIYOSHI (JP)
Application Number:
PCT/JP2021/027881
Publication Date:
April 21, 2022
Filing Date:
July 28, 2021
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
International Classes:
G01G19/03; B60W40/13
Foreign References:
| US20050281650A1 | 2005-12-22 | |||
| JP2002114141A | 2002-04-16 | |||
| JP2004058960A | 2004-02-26 | |||
| JPS57131699A | 1982-08-14 | |||
| JP2004058960A | 2004-02-26 | |||
| JP2013216278A | 2013-10-24 | |||
| JP2001063991A | 2001-03-13 | |||
| JP2020093741A | 2020-06-18 |
Other References:
See also references of EP 4230972A4
Attorney, Agent or Firm:
SATO Tsutomu et al. (JP)
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