Operation CHARM: Car repair manuals for everyone.

General Description

The MAGNASTEER system varies the driver effort required to steer as vehicle speed changes. At low speeds, the system requires minimum steering effort for easy turning and parking maneuvers. At higher speeds, steering effort is increased to provide the driver with firmer steering (road feel) and directional stability. MAGNASTEER accomplishes this by adding or subtracting torque in the rotary input shaft to the power steering gear. When the vehicle is stationary, MAGNASTEER adds torque to assist the driver in turning the steering wheel. As vehicle speed increases, the torque provided by MAGNASTEER decreases. At higher speeds, MAGNASTEER increases resistance to the turning of the steering wheel for improved road feel.