| Patent Number |
Title Of Patent |
Date Issued |
| 6070369 |
Person transport vehicle |
June 6, 2000 |
| In a person transport vehicle, a roof structure is fixed on longitudinal sidewalls (1). In order to achieve a simple but highly functional structure, a longitudinal beam (3) for the roof is fixed to the area of the top side edges of each longitudinal side wall (1) and is provided with |
| 6062355 |
Energy-absorbing device |
May 16, 2000 |
| An energy-absorbing device, particularly for rolling stock to provide protection therefor when potentially damaging impact occurs, includes first and second tubular elements which are fitted into one another and which are of unlike material. |
| 6020714 |
Control system for a drive having an asynchronous motor |
February 1, 2000 |
| In the case of a control system (140) for a drive having an asynchronous motor, in particular for a railroad vehicle, which control system (140) comprises a first control loop (141) for motor control, and a second control loop (142) which is connected to the first control loop (141) and |
| 5950544 |
Rail vehicle |
September 14, 1999 |
| A rail vehicle, includes an air-suspended body having an underside, an air spring having a base point and an internal air pressure, and cars supporting the body. The body rests on the cars and swings out on the air spring. There is also an emergency spring which has a core. Guide and |
| 5943959 |
Partially sprung drive, in particular for electric traction vehicles |
August 31, 1999 |
| A partially spring-loaded drive, particularly for electrically-powered rail vehicles, having a gear which, including an encapsulating gear housing, is seated on the wheel axle, and a pinion that is seated in the gear housing. The coupled motor is fixedly secured to the truck, and the res |
| 5936833 |
Converter modules having a busbar system for power semiconductor switches |
August 10, 1999 |
| Converter modules have a busbar system for a plurality of power semiconductor switches or, preferably, IGBT power semiconductor modules (IPMs). The power semiconductor switches are arranged in pairs, facing one another or facing away from one another, close together and parallel. In |
| 5914872 |
Converter-fed drive system |
June 22, 1999 |
| The invention is a converter-fed drive system having at least one drive motor fed by a converter unit. The converter unit has a valve assembly containing semiconductor valves, a cooler for cooling the semiconductor valves and a capacitor assembly are mounted directly on the drive motor. |
| 5902342 |
Detection of vibration in an AC traction system |
May 11, 1999 |
| An electric powered vehicle includes a traction motor powered from a source of switched DC power. The motor includes a tachometer for measuring the rotational velocity of the motor and for providing a tachometer signal indicative thereof. A low pass filter low pass filters the tachometer |
| 5862047 |
Power converter circuit arrangement having a plurality of parallel power converters or power con |
January 19, 1999 |
| A power converter circuit arrangement having a plurality of parallel power converters or power converter arms is specified, in which an effective uniform distribution of current can be achieved in a simple manner. This is achieved by virtue of the fact that balancing inductors which are |
| 5859772 |
Parallel connection of controllable semiconductor components |
January 12, 1999 |
| Converters having a 1st power converter (1) on the mains systems side and a 2nd power converter (9) on the load side may have valve arms with insulated gate bipolar transistors (IGBTs) (T1, T2; T1', T2'). In order to be able to switch high currents, as are required in traction applicatio |
| 5803411 |
Method and apparatus for initializing an automated train control system |
September 8, 1998 |
| A vehicle initialization system for a control system that includes a vehicle, such as a train that is to be initialized, a vehicle track, a first reader, an onboard computer and a tachometer. The vehicle is adapted to coact with the track. At least two spaced apart position identifiers |
| 5775231 |
Rail vehicle with crossbeam elastically held to undercarriage |
July 7, 1998 |
| A rail vehicle has a longitudinal direction and includes an undercarriage, a crossbeam held against the undercarriage, extending transversely to the longitudinal direction of the superstructure and adapted for being seated on a bogie or similar structure. A mechanism is provided for elas |
| 5719457 |
Squirrel-cage rotor for an asynchronous machine |
February 17, 1998 |
| In a squirrel-cage rotor for an asynchronous machine, having a laminated core (2) which is mounted on the shaft (1), held together at both ends by press rings and is intended for accommodating the cage bars (3), the latter are respectively permanently connected to a short-circuiting ring |
| 5713541 |
Electromagnetic interference detection system for mass transit vehicles with electronic propulsi |
February 3, 1998 |
| An electric power vehicle includes a propulsion system connected to a direct current (DC) source via a supply line. The propulsion system converts the DC supplied via the supply line to an AC electrical power to operate an AC motor at a desired level. An electromagnetic interference |
| 5690034 |
Composite-material push-pull link bar for rail vehicles |
November 25, 1997 |
| A composite push-pull bar for use in a rail vehicle includes end-side connecting elements for axial introduction of compressive and tractive forces; and a rod-shaped structural element disposed between the end-side connecting elements for take-up and transmission of compressive and t |
| 5666382 |
Method and apparatus for communicating in the presence of power and propulsion system interferen |
September 9, 1997 |
| A method and apparatus for communicating over a track circuit which includes an interference signal. The invention includes sampling the interference signal on the track circuit at a predetermined sampling frequency to produce a sampled interference signal, detecting interference at |
