Zobrazeno 1 - 10
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pro vyhledávání: '"Philip G. Howlett"'
Autor:
Philip G. Howlett, Peter J. Pudney
Rail is potentially a very efficient form of transport, but must be convenient, reliable and cost-effective to compete with road and air transport. Optimal control can be used to find energy-efficient driving strategies for trains. This book describe
Autor:
Philip G. Howlett, Peter Pudney
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
There are two aspects of train control that can be addressed before we consider the optimisation problems. First, we can show that the discrete control mechanism of the fuel consumption model is not a practical limitation, since any speed profile can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b52b8e8e659163078f8dfc65cf3c75
https://doi.org/10.1007/978-1-4471-3084-0_3
https://doi.org/10.1007/978-1-4471-3084-0_3
Autor:
Philip G. Howlett, Peter Pudney
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
Both formulations of the train control problem can be solved using standard methods of constrained optimisation. This chapter shows how a standard optimisation problem can be formulated and then approximated by a linearised problem that defines neces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afb356d55ff876bbb55af4cdfd633372
https://doi.org/10.1007/978-1-4471-3084-0_4
https://doi.org/10.1007/978-1-4471-3084-0_4
Autor:
Peter Pudney, Philip G. Howlett
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
With an appropriate formulation of the train control problem, we have already shown that an optimal driving strategy exists. In this chapter, necessary conditions of the Fritz-John type will be obtained for the optimal strategy, and these conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::309b0dd8a0d624888f837dd6d41f4fb2
https://doi.org/10.1007/978-1-4471-3084-0_6
https://doi.org/10.1007/978-1-4471-3084-0_6
Autor:
Philip G. Howlett, Peter Pudney
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
In the previous chapter we showed that for each given sequence of control settings, fuel consumption is minimised if the settings are changed only when the speed reaches a critical value. The duration of each phase is determined by these critical spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65784db03efdc76b4a600219c3edffe0
https://doi.org/10.1007/978-1-4471-3084-0_9
https://doi.org/10.1007/978-1-4471-3084-0_9
Autor:
Philip G. Howlett, Peter Pudney
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
In this chapter it will be shown that when the mechanical energy model is used to formulate the train control problem on level track in an appropriate function space, an optimal strategy does indeed exist. Furthermore, the existence of an optimal str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c21cc818b99f8d653cd2885f1cef3b73
https://doi.org/10.1007/978-1-4471-3084-0_5
https://doi.org/10.1007/978-1-4471-3084-0_5
Autor:
Philip G. Howlett, Peter J. Pudney
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c540ac6b6ed6b1c87e8e74c3a3428db
https://doi.org/10.1007/978-1-4471-3084-0_11
https://doi.org/10.1007/978-1-4471-3084-0_11
Autor:
Peter Pudney, Philip G. Howlett
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
In 1977–78 Milroy [1] considered the problem of driving a train from one station to the next along a level track within a given allowable time in such a way that energy consumption is minimised. He used the energy flows in the traction and braking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26032b1ba3e7ea84c144d62c4afd2cb5
https://doi.org/10.1007/978-1-4471-3084-0_1
https://doi.org/10.1007/978-1-4471-3084-0_1
Publikováno v:
Control Problems in Industry ISBN: 9781461275893
Over the past decade, the Scheduling and Control Group has conducted an extensive program of research into the theory and practice of energy-efficient train control. Two distinct systems have been developed for providing train drivers with advice on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c188dcfd26b60b2da171491b68a6160a
https://doi.org/10.1007/978-1-4612-2580-5_7
https://doi.org/10.1007/978-1-4612-2580-5_7
Autor:
Peter Pudney, Philip G. Howlett
Publikováno v:
Advances in Industrial Control ISBN: 9781447130864
When the fuel consumption model is used to formulate the train control problem on level track, an optimal strategy no longer exists. There is no feasible strategy that minimises fuel consumption. We will show that for any given sequence of control se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a80aa2992ce3e2100e9febd26aeb4041
https://doi.org/10.1007/978-1-4471-3084-0_8
https://doi.org/10.1007/978-1-4471-3084-0_8