Electricity: motive power systems – Braking – Dynamic braking
Reexamination Certificate
2011-07-19
2011-07-19
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Braking
Dynamic braking
C318S701000, C318S438000, C318S244000, C318S245000, C318S246000
Reexamination Certificate
active
07982418
ABSTRACT:
This device is an electric safety brake which is intended for an electric traction vehicle, in particular a rail vehicle comprising: a rotating electromechanical machine (10) having permanent magnets having at least one coil with electric terminals (13, 14, 15), a resistive braking torque production device (22), an electromechanical commutator (20) which is capable of reliably connecting the electric terminals (13, 14, 15) of the machine (10) to the braking torque production device (22).It is characterized in that the braking torque production device (22) comprises, on the one hand, a bipolar assembly (122) of at least one dissipative resistor, the assembly having two single connection terminals and forming a common terminal bipolar electric output load for all the terminals (13, 14, 15) of the mechanism and, on the other hand, means (120) for converting the currents from all the terminals (13, 14, 15) into a single current which is supplied to the two single terminals of the assembly of at least one dissipative resistor, the conversion means (120) having no active power switches.
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Bonin Eric
Jobard Thierry
Alstom Transport SA
Davidson Davidson & Kappel LLC
Luo David S
Ro Bentsu
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