Traction Control System

NOTE: Traction is a function of tire design, inflation pressure, load, tire slip angle, level of percent slip and road condition.

The Traction Control System (TCS) uses spark retard, throttle close-down and rear brakes to enhance vehicle acceleration and stability. TCS is capable of functioning up to maximum vehicle speed. Traction control is given priority at low vehicle speeds. Directional control is given priority at high vehicle speeds and during cornering. During a cornering maneuver, difference in front wheel speeds is monitored to detect cornering. During low vehicle acceleration, control strategy is more sensitive.

The TCS is capable of simultaneous or separate usage of engine control (spark control and throttle close-down) and rear brake intervention. When a TCS event occurs, TCS disables cruise control and torque converter clutch (automatic transmission equipped vehicles). Traction control logic uses a reference speed from the non-driven front wheels. A sophisticated slip threshold calculation considers vehicle acceleration, vehicle speed, cornering and start-up. There are rear wheel acceleration rates which will trigger rear brake intervention to reduce wheel spin.