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| Number | Title | Issue Date |
| 8001906 | Electric drive vehicle retrofit system and associated method A system is provided for retrofitting an electrically propelled vehicle. The vehicle has an engine-driven generator, and at least a first traction motor and a second traction motor coupled to the generator. The system includes an energy storage device capable of bei... | 08/23/2011 |
| 7325498 | Hybrid energy off highway vehicle propulsion circuit A system and method for retrofitting a propulsion circuit of an existing Off Highway Vehicle to enable the propulsion circuit to operate as a hybrid energy Off Highway Vehicle propulsion circuit. The hybrid propulsion circuit includes a primary power source, and a t... | 02/05/2008 |
| 7215049 | Generator for vehicle A generator for a vehicle includes a stator having an armature coil, a rotor having a field coil and a voltage regulator having a surge absorbing capacitor element and a heat sink. The heat sink dissipates heat that is transmitted to the capacitor element, so that t... | 05/08/2007 |
| 7190133 | Energy storage system and method for hybrid propulsion A hybrid propulsion system. The system comprises one or more hybrid propulsion traction drives having an electric motor operable to produce mechanical power for propulsion. A hybrid propulsion traction drive is operable to receive power from an on-board power genera... | 03/13/2007 |
| 7185591 | Hybrid energy off highway vehicle propulsion circuit A system and method for retrofitting a propulsion circuit of an existing Off Highway Vehicle to enable the propulsion circuit to operate as a hybrid energy Off Highway Vehicle propulsion circuit. The hybrid propulsion circuit includes a primary power source, and a t... | 03/06/2007 |
| 7137344 | Hybrid energy off highway vehicle load control system and method A system and method for managing electrical power generated by an engine for use in connection with operating a hybrid energy off highway vehicle load control system. A load control circuit determines a current operating condition of the Off Highway Vehicle, and det... | 11/21/2006 |
| 7124691 | Method for monitoring and controlling locomotives The present invention is directed to a locomotive comprising energy storage units, such as batteries, a prime energy source, such as a diesel engine, and an energy conversion device, such as a generator. The locomotive comprises one or more of the following features... | 10/24/2006 |
| 7021588 | System and method for managing two or more locomotives of a consist The system and method for controlling a consist of at least first and second locomotives having discrete operating modes. The method comprises receiving a control command and determining a power operating mode of the first locomotive and a power operating mode of th... | 04/04/2006 |
| 7021589 | Control system for optimizing the operation of two or more locomotives of a consist A system for controlling, a response to an operator, a consist of at least first and second locomotives having discrete operating modes. The system comprises an operator control, a first controller, a second controller, and a communication link. Alternatively, the s... | 04/04/2006 |
| 6997520 | Control and communication system for railway trains The system utilizes two bi-directional transmission lines which extend parallel to and spaced form one another along the train; a control unit operating as a main unit installed on the main engine is connected to the transmission lines and to brake control systems o... | 02/14/2006 |
| 6984946 | Method for monitoring and controlling traction motors in locomotives The present invention is directed to a locomotive comprising energy storage units, such as batteries, a prime energy source, such as a diesel engine, and an energy conversion device, such as a generator. The locomotive comprises one or more of the following features... | 01/10/2006 |
| 6973880 | Hybrid energy off highway vehicle electric power storage system and method An electrical energy capture system for use in connection with a hybrid energy off highway vehicle system of a off highway vehicle. The hybrid energy off highway vehicle system includes an off highway vehicle, a primary power source, and an off highway vehicle tract... | 12/13/2005 |
| 6937925 | Slow speed consist control by independently controlling each locomotive A method for controlling locomotive consists at slow speeds by independently controlling each locomotive is provided. The method comprises controlling the throttle settings and main generator excitation of a control locomotive, independently controlling, from the co... | 08/30/2005 |
| 6928342 | Method and apparatus implementing a communication protocol for use in a control system A remote control unit for controlling a locomotive by transmitting signals to a remote receiver mounted onboard the locomotive is provided. The remote control unit includes an input for receiving a signal indicative of a command selected from a set of available comm... | 08/09/2005 |
| 6922619 | System and method for selectively limiting tractive effort to facilitate train control Method for controlling the level of tractive efforts in a train having a first locomotive at a head end of the train, constituting a lead locomotive, and a second locomotive positioned in the train behind the lead locomotive, constituting a remote locomotive, with t... | 07/26/2005 |
| 6691957 | Control and method for optimizing the operation of two or more locomotives of a consist A system and method for controlling, a response to an operator, a consist of at least first and second locomotives having discrete operating modes. The system and method comprises an operator control, a first controller, a second controller, and a communi... | 02/17/2004 |
| 6619594 | Control, sound, and operating system for model trains A model train operating, sound and control system that provides a user with increased operating realism. A novel remote control communication capability between the user and the model trains. This feature is accomplished by using a handheld remote control... | 09/16/2003 |
| 6591758 | Hybrid energy locomotive electrical power storage system A hybrid energy locomotive system having an energy storage and regeneration system. In one form, the system can be retrofitted into existing locomotives, or installed as original equipment. The energy storage and regeneration system captures dynamic braki... | 07/15/2003 |
| 6532405 | Method for detecting a locked axle on a locomotive AC traction motor An exemplary embodiment of the invention is a method for detecting a potentially locked axle on a vehicle propelled by an AC motor. The method includes conducting a speed test by estimating axle speed and comparing estimated axle speed to measured vehicle... | 03/11/2003 |
| 6418858 | Method for drive coordination of rail-guided vehicles with individual-wheel drive A method for the drive coordination of a rail-guided vehicle with individual-wheel drive traveling on straight track, including the steps of determining a differential speed (Ɗn) of opposite track wheels and a control value (ƊM) by a controller as a fun... | 07/16/2002 |
| 6327980 | Locomotive engine inlet air apparatus and method of controlling inlet air temperature Automatic control of the temperature of the inlet air being supplied to the engine (12) of a locomotive (10) in order to optimize the performance of the engine (12) under a variety of ambient air temperatures and pressures. One or more valves (38) is util... | 12/11/2001 |
| 6308639 | Hybrid battery/gas turbine locomotive Prior battery-powered electric locomotives have used multiple diesel engines to charge the batteries and have not been commercially accepted. The present invention provides a yard switcher which combines battery storage with a gas microturbine generator t... | 10/30/2001 |
| 6267062 | AC drive industrial switching locomotive The two axle locomotive of this invention includes a diesel engine directly coupled to a generator for generating power to a single electrical traction motor. Preferably, the drive motor is an AC traction motor which drives both axles of the locomotive us... | 07/31/2001 |
| 5581472 | Method and apparatus for feedback of trainline status to the central processor of a locomotive throttle controller In an electronically controlled RAILWAY locomotive throttle controller system having a central processor unit and a plurality of trainlines, such trainlines carrying binary voltage signals derived from corresponding binary signals in such central processo... | 12/03/1996 |
| 5564657 | Electronically controlled locomotive throttle controller including remote multiple unit throttle control An electrically controlled railway locomotive throttle controller including a power source connected to a central processing unit disposed on such locomotive. An encoder device is disposed on such locomotive for providing at least one electrical signal to... | 10/15/1996 |
| 5563785 | Method of performing diagnostics on an electronically controlled railway locomotive throttle controller A method of diagnostic testing and taking appropriate corrective action on an electronically controlled throttle controller which includes scanning inputs from at least one of the throttle handles and a remote host. Communicating information from such thr... | 10/08/1996 |
| 5392716 | Locomotive traction motor control system A locomotive traction motor control system includes a traction motor suspended by traction motor suspension bearings, such as roller bearings in a bearing assembly, and traction motor suspension bearing temperature sensors, such as thermistors, for sensin... | 02/28/1995 |
| 4976332 | Circuit arrangement for the drive of a vehicle For the drive of a vehicle having at least one driven axle, in particular a rail vehicle, a secondarily controlled hydrostatic drive is provided which is connected to a pressure network with impressed pressure. The respective travelling direction and the ... | 12/11/1990 |
| 4955291 | Conveyor with self propelled vehicles each having an on board control A conveyor system (10) is disclosed comprised of a plurality of vehicles (12), propelled about a guide track (14) by a D.C. motor (54) and battery (52), featuring an on-board control (40) in which signals from fore and aft and side mounted photosensors (3... | 09/11/1990 |
| 4838173 | Draw bar force sensing locomotive control system An improved strain sensor is disclosed utilizing a linear variable displacement transducer (LVDT) to precisely output the linear strain over a structural member. The LVDT is mounted utilizing a position apparatus having a similar coefficient of thermal ex... | 06/13/1989 |
| 4652057 | Control system for integral trains A train having at least a pair of control cabs spaced along the train interconnected electrically. Electric signals transmitted between the control cabs allows for fluid braking signals to be propagated from both control cabs toward each other. Each car o... | 03/24/1987 |
| 4651071 | Brake control system for supplementing electric brake with friction brake A brake control system for a railway car having a primary electric brake and a secondary friction brake that supplements the electric brake as the electric brake effectiveness fades. The secondary friction brake is normally applied in accordance with a fi... | 03/17/1987 |
| 4602335 | Fuel efficient control of multiple unit locomotive consists An electronic fuel conserving control system for multiple unit locomotive consists. The control system varies the throttle settings of the individual locomotive units among full power, half power and minimal power settings to operate the consist in a fuel... | 07/22/1986 |
| 4582280 | Railroad communication system A radio communication control system for a lead unit and a plurality of remote units is disclosed. The system has a protocol for establishing a communication link between the lead unit and the one or more remote units in the system which prevents any of t... | 04/15/1986 |
| 4553723 | Railroad air brake system A radio communication control system for a lead unit and a plurality of remote units is disclosed. The system has a protocol for establishing a communication link between the lead unit and the one or more remote units in the system which prevents any of t... | 11/19/1985 |
| 4457237 | Electronic anti-spin and anti-slip control for drive and brake of an intermittently advancing track working machine A mobile track working machine arranged for intermittent advancement along the track comprises a drive, a brake for braking the driven wheels at respective working sites between the intermittent advancement of the machine, a speedometer generating a signa... | 07/03/1984 |
| 4401035 | Control device for multiple unit locomotive systems An electronic control system for automatically controlling the locomotive units of a multiple unit locomotive consist in a manner to maintain a selected speed of the consist with minimum fuel consumption. The control system includes a microprocessor and r... | 08/30/1983 |
| 4360873 | Power selection system for a consist of locomotives The number of on-line locomotives of a consist is either reduced or increased by a manual control system that conserves fuel by throttling back trailing locomotives and operating the remaining locomotives of the consist at the most efficient throttle posi... | 11/23/1982 |
| 4344364 | Apparatus and method for conserving fuel in the operation of a train consist The apparatus includes a master control unit associated with a first locomotive and a slave control unit associated with a second locomotive. Each of the control units is identically constructed to include an electronic processor and memory. The memory in... | 08/17/1982 |
| 4344138 | Digital air brake control system A microcomputer-operated air brake control system for controlling the air brakes of a railroad car in a train is disclosed. The system includes a plurality of pressure sensors pneumatically connected to various points in the air brake system of the car an... | 08/10/1982 |
