DRIVING-TORQUE DISTRIBUTION CONTROL APPARATUS OF FOUR-WHEEL DRIVE VEHICLE

摘要

A controller to control a driving-torque distribution to a front wheel and a rear wheel comprises an obtainment portion to obtain a vehicle's lateral acceleration, an engine's output torque, and a vehicle's turning radius during turning of a vehicle, a determination portion to determine a rear-wheel driving-torque distribution rate denoting a rate of the driving torque to be transmitted to the rear wheel relative to the driving torque corresponding to the engine's output torque based on the obtained vehicle's lateral acceleration, engine's output torque, and vehicle's turning radius, and a control-signal output portion to output a control signal to a driving-torque transmission device to adjust the driving torque transmitted to the rear wheel such that the driving torque to be distributed to the rear wheel is controlled according to the determined rear-wheel driving-torque distribution rate.