公开(公告)号：US20190263392A1

公开(公告)日：2019-08-29

申请号：US16346570

申请日：2017-11-02

Applicant: MAZDA MOTOR CORPORATION

Inventor： Yasumasa IMAMURA ,  Yasushi YAGI ,  Tetsushi MARUTANI ,  Naoki NOBUTANI ,  Daisuke KOFU ,  Akihiro TATARA

IPC: B60W30/02 ,  B60K17/348 ,  B60W10/06 ,  B60W10/119 ,  B60W10/14 ,  B60W30/188 ,  B60W40/064 ,  B60W40/068

Abstract: A driving force control device 1 for a vehicle V comprises: a D-μ map M1 defining a linear correlation between a driving stiffness D and a maximum road surface μ; a slip ratio calculation circuit 21 for calculating a slip ratio S of one of a pair of front road wheels 10L, 10R; a DS calculation circuit 22 for calculating the driving stiffness D corresponding to a value the slip ratio S calculated by the slip ratio calculation circuit 21; a maximum road surface μ calculation circuit 23 for assigning a value of the driving stiffness D calculated by the DS calculation circuit 22 to the D-μ map M1 to calculate the maximum road surface μ; and a driving force distribution circuit 24 for controlling a driving force, using a value of the maximum road surface μ calculated by the maximum road surface μ calculation circuit 23.