What does variable steering ratio mean?
2 Answers
Variable steering ratio adjusts the steering gear transmission ratio based on vehicle speed and steering angle. The functions and implementation methods of variable steering ratio are as follows: Functions of variable steering ratio: When the vehicle is stationary, moving at low speed, or making large steering angles, it provides a smaller steering gear transmission ratio; when the vehicle is traveling at high speed or making small steering angles, it provides a larger steering gear transmission ratio to improve steering stability. Implementation methods of variable steering ratio: Currently, there are two main approaches to achieve this function in variable ratio steering systems. One method relies on special rack design, which is simple in principle, relatively low-cost, and doesn't require advanced technology; the other method is more complex, utilizing planetary gear structures and electronic systems.
When I first bought my car, I didn't understand variable gear ratio steering. After driving for a few years, I finally got it. Simply put, it means the ratio between how much you turn the steering wheel and how much the wheels actually turn can vary. For example, when I'm driving at low speeds to park in my neighborhood, just a slight twist of the steering wheel allows the wheels to turn at a large angle, making it super convenient without needing to back up multiple times. On the highway, the steering wheel requires more turns, but the steering becomes more precise and stable, preventing lane deviation from slight hand movements. This feature is automatically adjusted by the car's gear system, combined with electric power steering, making driving less strenuous and more fuel-efficient for me. In short, it makes driving more flexible and safer, perfect for commuters like me who drive in the city every day. I recommend all beginners to learn about it.
