What does variable steering ratio mean?
2 Answers
Variable steering ratio adjusts the steering gear ratio based on the car's speed and steering angle. When the car is in a parked state, moving at low speeds, or making large steering angles, it provides a smaller steering gear ratio. When the car is driving at high speeds or making small steering angles, it provides a larger steering gear ratio to improve the stability of the car's steering. Currently, there are mainly two ways to achieve this function in variable ratio steering systems. One method relies on a special rack, which is simple in principle, relatively low in cost, and does not require high technical expertise. The other method is more complex, utilizing a planetary gear structure and an electronic system.
Variable steering ratio is a steering system technology that adjusts the proportion of steering wheel rotation relative to wheel movement based on driving speed. At low speeds, such as when parking or making sharp turns, the steering wheel requires less rotation to achieve greater wheel movement, making turns easier and more agile. During high-speed driving, like on highways, the steering wheel needs to turn more to produce slight wheel adjustments, enhancing stability and reducing the risk of skidding. This system is typically implemented through an electronic control unit or a variable gear mechanism, adapting to various road conditions and improving driving comfort. Many modern car brands now offer it as a premium feature, especially useful in congested urban areas—it simplifies maneuvering and boosts confidence for novice drivers. If you're car shopping, check the vehicle specifications for this system. While it may sound technical, its operation is intuitive and can significantly enhance daily commuting.
