Brienza D M, Brubaker C E
Department of Rehabilitation Science and Technology, University of Pittsburgh, PA 15260, USA. dbrienza+@pitt.edu
J Rehabil Res Dev. 1999 Jan;36(1):42-7.
An Ackerman steering linkage for short wheelbase, four-wheel vehicles has been developed. The linkage coordinates the steering angle of each wheel through a range of 180 degrees with minimal misalignment between wheels. Control of steering angles is accomplished using a single linear actuator. Control complexity is lower compared to four-wheel systems using individually controlled steering actuators for each wheel. A prototype linkage that provides a minimum turning radius while maintaining maximum stability has been developed and evaluated for a power wheelchair base. The single-actuator linkage is well suited for this application, due to the cost-sensitive nature of wheelchair products.
一种用于短轴距四轮车辆的阿克曼转向连杆机构已被开发出来。该连杆机构能在180度的范围内协调每个车轮的转向角，使车轮之间的错位最小。转向角的控制通过一个单一的线性致动器来实现。与为每个车轮使用单独控制的转向致动器的四轮系统相比，控制复杂度更低。一种在保持最大稳定性的同时提供最小转弯半径的连杆机构原型已被开发出来，并针对电动轮椅底座进行了评估。由于轮椅产品对成本敏感的特性，单致动器连杆机构非常适合这种应用。
