ELECTRIC VEHICLE DRIVE-FORCE CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electric vehicle drive-force control device suitable for increasing electric power used for improving motion performance even when a battery power margin is small.SOLUTION: The electric vehicle drive-force control device decides a vehicle behavior target value; obtains a four-wheel drive-force distribution to achieve the vehicle behavior target value (S60); estimates the sum of the distributed powers necessary for achieving the four-wheel drive-force distribution (S90); obtains the sets of four-wheel drive-force distributions that can achieve the vehicle behavior target value (S80); estimates the sum of the distributed powers necessary for each set of the achievable four-wheel drive-force distribution (S90); and selects the drive-force distribution the sum of the distributed powers of which is larger than estimated-value of the necessary power from multiple sets of the achievable drive-force distribution while the electric storage device is discharging electricity.