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This text covers all aspects of this power transmisison and motion control with particular emphasis placed on current international research and development.
The latest research on power transmission systems Power Transmission and Motion Control is a collection of papers showcased at the 2002 PTMC conference at the University of Bath. Representing the work of researchers and industry leaders from around the world, this book features the latest developments in power transmission media and systems, with an emphasis on pneumatic and hydraulic devices and systems. Insight into current projects on the forefront of technology and innovation provides an overview of the current state of the field while informing ongoing work and suggesting direction for future projects.
Power Transmission and Motion Control 2004 (PTMC) comprises papers by authors from twelve countries. Presented at PTMC 2004- one of a series of annual Workshops held at the Bath University- this collection of well illustrated papers reports on latest developments from key international research centres in the fields of hydraulic and pneumatic motion control. Topics include: Drives, transmissions, and actuators Hydraulic and pneumatic components and systems Modelling and simulation Control Hydraulic fluids Condition monitoring Noise and Vibration Actuation systems Hydraulic system design Measurement techniques Essential reading for researchers and practitioners working in the fields of power transmission, motion control, hydraulics, and pneumatics.
Advanced in fluid power engineering motion and control Power Transmission and Motion Control is a collection of papers showcased at the PTMC 2001 conference at the University of Bath. Representing the work of researchers and industry leaders from around the world, this book features the latest developments in power transmission, with an emphasis on motion and control studies from the field of fluid power engineering. Insight into current projects on the forefront of technology and innovation provides an overview of the current state of the field while informing ongoing work and suggesting direction for future projects.
Power Transmission and Motion Control (PTMC) 2005 comprises 32 papers presented at PTMC 2005 - one of a series of annual International Workshops held at the University of Bath. This collection of papers reports on the latest research in the fields of hydraulic and pneumatic motion control worldwide. Topics Include: Drives, transmissions and actuators. Hydraulic and pneumatic components and systems Modelling and simulation Control Hydraulic fluids, including water and 'smart' fluids Fault analysis and diagnosis Noise and vibration System design This volume will be of particular interest to researchers and practitioners working in the fields of power transmission, motion control, hydraulics and pneumatics.
This thesis deals with the Electrohydraulic Power Steering system for road vehicles, using electronic pressure control valves. With an ever increasing demand for safer vehicles and fewer traffic accidents, steering-related active safety functions are becoming more common in modern vehicles. Future road vehicles will also evolve towards autonomous vehicles, with several safety, environmental and financial benefits. A key component in realising such solutions is active steering. The power steering system was initially developed to ease the driver's workload by assisting in turning the wheels. This is traditionally done through a passive open-centre hydraulic system and heavy trucks must still rely on fluid power, due to the heavy work forces. Since the purpose of the original system is to control the assistive pressure, one way would be to use proportional pressure control valves. Since these are electronically controlled, active steering is possible and with closed-centre, energy efficiency can be significantly improved on. In this work, such a system is analysed in detail with the purpose of investigating the possible use of the system for Boost curve control and position control for autonomous driving. Commercially available valves are investigated since they provide an attractive solution. A model-based approach is adopted, where simulation of the system is an important tool. Another important tool is hardware-in-the-loop simulation. A test rig of an electrohydraulic power steering system, is developed. This work has shown how proportional pressure control valves can be used for Boost curve control and position control and what implications this has on a system level. As it turns out, the valves add a great deal of time lag and with the high gain from the Boost curve, this creates a control challenge. The problem can be handled by tuning the Boost gain, pressure response and damping and has been effectively shown through simulation and experiments. For position control, there is greater freedom to design the controller to fit the system. The pressure response can be made fast enough for this case and the time lag is much less critical.
The latest developments in hydraulic and pneumatic power Power Transmission and Motion Control is a collection of papers showcasing the latest advances in the field. Curated with an emphasis on hydraulic and pneumatic systems, the collection represents the work of leading researchers from around the world to share new developments and inform future work. Relevant to engineers and mechanics in a variety of disciplines, this book provides a glimpse at technology at all stages of development: from market-ready to proof-of-concept, these projects provide important insight for anyone working with these systems.