29-03-2014, 12:35 PM
ACKERMAN STEERING
ABSTRACT
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° 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.
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