What does variable gear ratio steering in cars mean?
1 Answers
Variable gear ratio steering system refers to adjusting the steering ratio of the car's steering mechanism based on the vehicle's speed and steering angle. Below is relevant information: 1. When the car is driving at low speeds or with large steering angles, it provides a smaller steering ratio. When the car is driving at high speeds or with small steering angles, it provides a larger steering ratio to enhance the stability of the vehicle body. 2. Currently, there are mainly two types of variable gear ratio steering systems. One relies on a special rack to achieve the effect, with relatively simple working principles and lower production costs. The other method is more complex, utilizing planetary gear structures and electronic systems, resulting in higher production costs. Structurally, they can be divided into mechanical variable steering ratio systems and electronic variable steering ratio systems. 3. The naming of variable gear ratio steering systems varies among different car brands. For example, BMW calls it the AFS active steering system, Audi refers to it as the dynamic steering system, Toyota and Lexus name it the variable gear ratio steering system, and Mercedes-Benz calls it the direct steering system. Although their functions are similar, the production technologies used by each car manufacturer differ, with higher-end car brands generally having better-developed steering systems.
