Traction control device for vehicle

A traction control device for a vehicle, which decreases a driving torque for a driving wheel connected to a power source through an automatic transmission in response to the detection of an excessively slipping tendency of the driving wheel at the time of acceleration of the vehicle, said traction control device comprising:

• a gear shift position detecting means for detecting the shift stage of said automatic transmission;
• a shifting predicting means for predicting the shifting motion of said automatic transmission based on an operational parameter of said power source and a shifting characteristic of said automatic transmission;
• a foreseeing means for foreseeing the operational parameter of said power source after shifting, based on values before shifting of the operational parameter of said power source and operational parameter of the vehicle and the gear shift positions of said automatic transmission before and after shifting;
• a driving torque control section for determining a control quantity of the driving torque for the driving wheel, based on detection values before shifting and a foreseen value after shifting of the operational parameter of said power source;
• and
• an actuator operated in accordance with the control quantity determined in said driving torque control section to change the driving torque for the driving wheel.