| 摘要 |
A drive force distributing device includes first and second rollers rotatable jointly with a main drive wheel system and a subordinate drive wheel system, respectively. A shaft portion of the second roller is rotatably supported via a bearing in an eccentric bore of a crankshaft that in turn is rotatable about a fixed axis of a housing. Control of the drive force distribution between the main drive wheels and the subordinate drive wheels is carried out by turning the second roller by the rotation of the crankshaft about the fixed axis to adjust the inter-roller pressing force by an adjustment mechanism which performs a reverse rotation control in which the turning direction of the second roller and the rotation direction of the second roller are in the opposite direction when the detected oil temperature exceeds a predetermined temperature. An identical rotation control is performed otherwise. |
