The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2022
Filed:
Nov. 02, 2017
Mazda Motor Corporation, Hiroshima, JP;
Yasumasa Imamura, Hiroshima, JP;
Yasushi Yagi, Hiroshima, JP;
Tetsushi Marutani, Higashihiroshima, JP;
Naoki Nobutani, Hiroshima, JP;
Daisuke Kofu, Hiroshima, JP;
Akihiro Tatara, Hiroshima, JP;
MAZDA MOTOR CORPORATION, Hiroshima, JP;
Abstract
A driving force control devicefor a vehicle V comprises: a D-μ map Mdefining a linear correlation between a driving stiffness D and a maximum road surface μ; a slip ratio calculation circuitfor calculating a slip ratio S of one of a pair of front road wheelsL,R; a DS calculation circuitfor calculating the driving stiffness D corresponding to a value the slip ratio S calculated by the slip ratio calculation circuit; a maximum road surface μ calculation circuitfor assigning a value of the driving stiffness D calculated by the DS calculation circuitto the D-μ map Mto calculate the maximum road surface μ; and a driving force distribution circuitfor controlling a driving force, using a value of the maximum road surface μ calculated by the maximum road surface μ calculation circuit