Systems for and methods of facilitating a lateral maneuver by a vehicle
A system for and method of facilitating or enabling a lateral maneuver by a vehicle, including and utilizing a plurality of selectively engaged low friction components, such as rollers, bearings, balls, or high durometer high abrasion resistant low loss modulus rubber treads, and an actuator, such as at least one inflatable bladder, pivotal support strut, or active material element, drivenly coupled to the components.
1. A tire-based system adapted for use with a vehicle comprising a plurality of tires and performing a lateral maneuver upon a surface, wherein the tires and surface cooperatively present a net friction force and the maneuver is performed in a first direction, said system comprising:
at least one low friction component communicatively coupled to at least a portion of the tires, selectively shiftable between engaged and disengaged conditions relative to the surface, and configured to reduce the friction force, when in the engaged condition; and
an actuator drivenly coupled to said at least one component and operable to cause the component to selectively achieve the engaged condition, when activated, wherein the actuator includes at least one expandable bladder operable to selectively cause said at least one component to be extended and retracted, so as to achieve the engaged and disengaged conditions, respectively, and each tire presents an external surface, a plurality of components are disposed within the surface, and the actuator includes a plurality of discrete bladders, each operable to selectively cause the components to be extended past the surface when inflated.
2. The system in claim 1 , wherein the tire defines an internal tire pressure, and piezo-controlled inlet and outlet valves fluidly couple the bladders to the internal tire pressure and ambient air external to the tire.
3. A tire-based system adapted for use with a vehicle comprising a plurality of tires and performing a lateral maneuver upon a surface, wherein the tires and surface cooperatively present a net friction force and the maneuver is performed in a first direction, said system comprising:
at least one low friction component communicatively coupled to at least a portion of the tires, selectively shiftable between engaged and disengaged conditions relative to the surface, and configured to reduce the friction force, when in the engaged condition; and
an actuator drivenly coupled to said at least one component and operable to cause the component to selectively achieve the engaged condition, when activated, wherein the actuator comprises at least one active material element drivenly coupled and operable to selectively cause said at least one component to be extended or retracted, and the active material element is selected from the group consisting essentially of shape memory alloys, ferromagnetic shape memory alloys, electroactive polymers, magnetorheological elastomers, electrorheological elastomers, and piezoelectric materials.
4. The system in claim 3 , wherein the actuator includes a support strut drivenly coupled to each component and operable to selectively cause the component to be extended and retracted, so as to achieve the engaged and disengaged conditions, respectively.
5. The system in claim 3 , wherein the low friction components are selected from the group consisting essentially of wheels, rollers, bearings, balls, and low friction material.