| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate, in a vehicular driving force distribution control device for controlling driving force to auxiliary drive wheels by a coupling relative to main drive wheels, defects such as disadvantage of fuel economy in a low rotation region of engine rotation speed, generation of booming noise and generation of floor vibration by optimizing the amount of the driving force transmitted to the auxiliary drive wheels by the coupling.SOLUTION: A vehicular driving force distribution control device comprises: a coupling making a transmission amount of driving force from an engine variable; main drive wheels to which the driving force of the engine is mainly transmitted; auxiliary drive wheels to which the driving force from the engine is transmitted via the coupling; and coupling control means for controlling the amount of the driving force transmitted to the auxiliary wheels by the coupling on the basis of a gear coefficient set according to an accelerator opening, a vehicle speed and a gear position so that the same becomes an optimum value. In the vehicular driving force distribution control device, the gear coefficient is set according to engine rotation speed.</p> |
