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| Number | Title | Issue Date |
| 7319910 | Method and device for controlling a movement of a movable machine element of a machine tool or production machine A method and device for controlling a movement of a movable machine element of a machine tool or production machine with at least two drive axles are disclosed. At least one mechanical characteristic frequency is determined for each drive axle of the machine, and th... | 01/15/2008 |
| 5740043 | Relative spin speed traction control An apparatus for providing relative spin speed traction control on a railway vehicle. Such apparatus includes a wheel spin detection device connected to receive a plurality of input signals; one of such input signals being an externally generated axle rat... | 04/14/1998 |
| 5708334 | Method for controlling an electric drive of a vehicle A method for open-loop and closed-loop control of an electric drive of a vehicle, in particular of a rail vehicle, utilizes a frictional engagement between a wheel and a rail or an underlying surface, to a high degree. A control is carried out which takes... | 01/13/1998 |
| 5654889 | Simplified pattern recognition wheel slide protection This invention provides method and apparatus for an improved pattern recognition wheel slide protection system for passenger transit type railway vehicles. It receives as inputs the rotational velocities of all the axles on the vehicle, and the accelerati... | 08/05/1997 |
| 5453942 | Wheel spin speed processing system for multiple-axle railway vehicles A vehicle-in-spin speed processing system for multiple wheel axle units of a self-powered railway vehicle in which a reasonably accurate vehicle speed reference signal is produced as the wheel axle units are experiencing wheel spin during acceleration of ... | 09/26/1995 |
| 5244171 | Intermediary wheel slip sequence speed processing system for multiple axle railway vehicles An interslip sequence slip control system for multiple wheel axle units for railway vehicles including an electronic logic network for determining whether all the axles of the vehicle are slipping at the same time. A first circuit for selecting the maximu... | 09/14/1993 |
| 4709194 | Method of controlling the mode of driving electric vehicles A method of controlling the mode of driving an electric vehicle so that the electric vehicle is accelerated at a maximum acceleration and is decelerated at a maximum deceleration. The mode of variation of the running speed of the electric vehicle is estim... | 11/24/1987 |
| 4365333 | Test signal generator A test signal generator for generating signals simulating the signals obtained from the axles of a railroad car, to permit testing of a railroad car brake controller. During testing of the controller for detection of excessive speed difference between the... | 12/21/1982 |
| 4071282 | Slip-slide detector system for railway car wheels The inventive system comprises a magnetic pulse generator mounted on each axle of a railroad car. The outputs from the resulting pulse generators are fed to a detector which compares the speeds of the axles. When wheel slip indicated by a pulse count diff... | 01/31/1978 |
