Torque splitting device with an improved curve turning property

Details Torque splitting device with an improved curve turning property Torque splitting device with an improved curve turning property

1997-11-11

2000-03-07

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Steering by driving

475 19, B62D 1102, B62D 1106

Patent

active

060333375

ABSTRACT:
In a torque splitting device for distributing an input torque applied to an input member to a pair of output members adapted to be coupled with right and left driven wheels of a vehicle at an adjustable distribution ratio, the distribution ratio is determined in such a way that the understeer and oversteer tendencies of the vehicle under a positive or negative drive condition while turning a curve is appropriately controlled. In particular, it is highly desirable to prevent an understeer tendency from appearing while turning a curve. Therefore, when the vehicle is under a positive drive condition while tuning a curve, a yaw moment is produced by an appropriate torque distribution which assists the vehicle to turn in such a way that the understeerg condition is canceled. Furthermore, when the vehicle moves on from a positively drive condition to a negative drive condition while turning a curve, a slight oversteer tendency is produced with a minimum time delay so as to avoid any transient phase of an understeer condition from appearing.

REFERENCES:
patent: 4926333 (1990-05-01), Hashiguchi et al.
patent: 4966250 (1990-10-01), Imaseki
patent: 5259476 (1993-11-01), Matsuno et al.
patent: 5479348 (1995-12-01), Sasaki
patent: 5508924 (1996-04-01), Yamashita
patent: 5692987 (1997-12-01), Shibahata et al.
patent: 5701247 (1997-12-01), Sasaki
patent: 5813939 (1998-09-01), Masumoto et al.

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