Intelligence type traction control method and system for learning of tire traction circle

摘要

The present invention applies a traction circle to the tire's tractive force limit which finally transmits the engine output of the vehicle to the ground and the maximum tractive force that can be controlled without slippage in the tire, And more particularly, to a system and method for intelligent traction control of a tire traction circle learning which continuously learns to control the engine output so that the tire exhibits maximum gripping force. The tire traction circle learning intelligent traction control system according to the present invention has a circular or elliptical shape in which the acceleration against the speed of the vehicle is a radius of the maximum value of the tractive force with respect to the tire at the center point having the transverse axis and the vertical axis in the vertical direction A traction learning unit that learns longitudinal acceleration and lateral acceleration of the traction circle in acceleration, deceleration, and swing according to tire slip detection and vehicle speed detection, engine torque detection, steering angle detection, and vehicle weight detection; And a traction control unit that calculates a traction control torque in accordance with the operation mode, the environmental condition, and the maximum / minimum torque control based on the longitudinal acceleration and the lateral acceleration learned through the traction learning unit, And an electronic control unit (ECU) for controlling the engine output with a torque.