Abstract: The problem of achieving maximum system efficiency through nearoptimal supervisory control (or system power management) in mobile offhighway machines is a theoretically challenging problem. It has been tackled for the first ...

Abstract: Many railway construction and maintenance machines have large masses and perform repetitive working cycles with frequent stops that require precise positioning. For these reasons, a hydraulic propulsion system is a convenient ...

Abstract: Recent demands on improved system efficiency and reduced system emissions have driven improvements in hydraulic system architectures as well as system supervisory control strategies employed in mobile multiactuator machinery. ...

Abstract: A transient lubrication model has been developed for the sliding interface between the slipper and swashplate in axial piston hydraulic pumps and motors. The model considers a nonisothermal fluid model, microdynamic motion ...

Abstract: Increased environmental awareness and skyrocketing fuel prices have pressed researchers and engineers to find energy efficient alternatives to traditional approaches. A novel steerbywire technology, which is based on pump ...

Abstract: Displacementcontrolled (DC) actuation is a revolutionary fluid power technology which has been utilized on a broad range of applications demonstrating substantial fuel savings and significant performance improvements over ...

Abstract: This paper develops a new computational approach for energy management in a hydraulic hybrid vehicle. The developed algorithm, called approximate stochastic differential dynamic programming (ASDDP) is a variant of the ...