To provide a driving force distribution device capable of suppressing a judder due to self-excited vibrations.
A driving force distribution device 1 adjusts the diametrical direction pressing force TETS of a first roller 31 and a second roller 32 to make traction force TFμ between rollers variable, and controls driving force distribution between main driving wheels (right and left rear wheels 6R and 6L) and driven wheels. The driving force distribution device 1 includes: speed difference increase tendency determining means (a speed difference increase tendency determining portion 103) for determining whether rotation speed difference Δv between the rollers tends to increase; and traction force correction controlling means (a traction force correction controlling portion 104) for increasing the diametrical direction pressing force TETS, when it is determined that the rotation speed difference Δv between the rollers tends to increase.
MORI ATSUHIRO
MITSUISHI SHUNICHI
TAKAISHI TORU
OGAWA KATSUYOSHI
| JP2009173261A | 2009-08-06 | |||
| JPH01195127A | 1989-08-07 |