4 Wheel steering system, Advantages and Disadvantages скачать в хорошем качестве

4 Wheel steering system, Advantages and Disadvantages

What is Four-Wheel Steering? In essence, four-wheel steering (or all-wheel steering) means that all four wheels are utilized for steering instead of the typical front two wheels on a car. This helps improve stability at high speeds and allows for a tighter turn radius at low speeds (with less effort). Obviously, you can’t have all four wheels turn in the same direction at the same angle at any speed. That would result in disaster. So instead, this system is heavily dependent on vehicle speed. At low speeds (under 35 MPH or so), the rear wheels turn in the opposite direction as the front wheels. This is referred to as “counter-phase” steering and allows the vehicle to take tighter turns than if only the wheels on the front axle were turning. This is a big help in situations like U-turns and parallel parking, especially for longer vehicles.