Vehicle driving force control apparatus

A vehicle driving force control apparatus of a vehicle provided with at least one first drive wheel, and a second drive wheel driven independently of the first drive wheel, the driving force control apparatus comprising:

• electric power supply means for supplying electric power;
• electric driving means for transferring a drive torque to the first drive wheel based on the electric power from the electric power supply means;
• electric power supplying status detecting means for determining an electric power supplying capacity of the electric power supply means based on a power supplying condition of the electric power supply means;
• and
• electric motor torque control means for controlling a control torque command of the electric driving means such that a target motor torque is limited based on the power supplying capacity determined by the electric power supplying status detecting means.

A method of controlling a vehicle driving force of a vehicle provided with at least one first drive wheel, and a second drive wheel driven independently of the first drive wheel, the method comprising:

• supplying electric power from a power source to an electric motor;
• transferring a drive torque to the first drive wheel based on the electric power supplied to the electric motor from the power source;
• determining an electric power supplying capacity of the power source based on a power supplying condition of the power source;
• and
• controlling a control torque command of the electric motor to limit a target motor torque based on the electric power supplying capacity of the power source.