Apparatus and method for suppressing mechanical resonance in a mass transit vehicle
US7027897B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2004 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Aug 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D19/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A mass transit vehicle traction motor control system includes an automatic control block for receiving and processing a tachometer signal having a first resonance signal superimposed thereon to produce a rate request signal having a corresponding second resonance signal superimposed thereon. A filter is provided for decreasing an amplitude of the second resonance signal whereupon the rate request signal is isolated therefrom. A communication and control block and a propulsion and control block co-act to process the isolated rate request signal to produce a speed control signal that is configured to cause a traction motor of a mass transit vehicle to provide motive force to the mass transit vehicle at a rate related to the value of the speed control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.