什么是阿克曼转向？

Group 1 - The article discusses the phenomenon of vehicles experiencing shaking or vibration during low-speed turns in wet conditions, tracing the issue back to historical vehicle designs like horse-drawn carriages [1] - Most modern vehicles utilize front-wheel steering for better stability, while rear-wheel steering can lead to oversteering and loss of control [2][4] - Early steering mechanisms, such as the simple "turntable steering," had inefficiencies and required large turning radii, leading to poor comfort and handling [6] Group 2 - To address the large turning radius, a quadrilateral steering mechanism was developed, allowing for reduced turning space but introducing new issues like sliding friction and vibrations [8] - The Ackermann steering geometry was introduced to ensure that the inner and outer wheels turn at different angles, minimizing side slip and tire wear during turns [10] - The standard Ackermann steering has a correction rate of 100% when the steering arms intersect at the rear axle, affecting the vehicle's steering characteristics [11] Group 3 - Despite the theoretical 100% correction rate, real-world factors like tire deformation necessitate adjustments to the Ackermann steering ratio for optimal performance [13] - Different vehicle types, such as formula racing cars, may employ "anti-Ackermann steering" to enhance stability and grip during high-speed cornering [15] - The advantages of Ackermann steering include reduced tire sliding, extended tire life, and improved vehicle stability, making it suitable for both performance and everyday vehicles [15]