Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7230399 | Vehicular generator-motor system A vehicular generator-motor 1 is composed of a rotor, a stator having three phase armature winding 2, and a converter 4. The rotor is provided with a field winding 3 for magnetizing a plurality of magnetic pole pieces 14a... | 06/12/2007 |
| 7053566 | Drive train for hybrid electric vehicle A drive train for a hybrid electric vehicle has an engine, first and second motor/generators, a third motor, and a transmission in connecting relationships with the engine, the motor/generators, and the third motor. The transmission has planetary gear sets to be shi... | 05/30/2006 |
| 6987369 | Motor assembly for providing an electrically powered engine A motor assembly includes a keyed on-off switch and at least one 12-volt battery coupled to the existing DC electrical system of the vehicle. A D.C. speed control unit regulates the current to a DC drive motor. A housing is positionable adjacent to a front or rear p... | 01/17/2006 |
| 6922026 | Light fixture control system To provide a light fixture control system with which an inrush current is prevented at the time of motor activation, and a light fixture is prevented from rapidly dimming. In a vehicle including a light fixture to be driven by an output of a generator of the vehicle... | 07/26/2005 |
| 6803734 | Method for eliminating fuel use during dynamic braking A dynamic braking system for a vehicle, the system comprising an engine, an alternator, a plurality of alternating current (AC) electric traction motors, each coupled in driving relationship to a respective one of a plurality of driven wheels, a plurality of power i... | 10/12/2004 |
| 6768278 | Gas turbine engine starter generator with switchable exciter stator windings A rotating electrical machine, such as an aircraft starter-generator, includes an exciter that has its stator windings divided into a number of sections. A plurality of switches are electrically coupled to the exciter stator winding sections and are configured and c... | 07/27/2004 |
| 6659727 | Control method for a dual mode compressor drive system An improved control method for a dual mode compressor drive arrangement selectively operates an electric machine coupled to the compressor as a motor or a generator during operation of an engine coupled to the compressor for improved efficiency and perfor... | 12/09/2003 |
| 6629027 | Control device and control method for hybrid vehicle A control device and control method for a hybrid vehicle is disclosed having an electric storage detecting section 13 which detects a state of charge (SOC) of an electric storage device 10. A target running efficiency calculating section 14 serves as a un... | 09/30/2003 |
| 6611127 | Drive circuit for motor/generator A drive circuit for a motor/generator, having a first rotating electrical machine which is mainly used as a motor and a second rotating electrical machine which is mainly used as a generator, is characterized in that a booster circuit is disposed at a pos... | 08/26/2003 |
| 6369539 | Motor drive controller for vehicle The present invention provides a motor drive controller for a vehicle having an engine and a motor disposed therein as a vehicle-propulsion system, the motor having both driving and power-generating functions, comprising: an engine controller for controll... | 04/09/2002 |
| 6362580 | Controller of vehicle propulsion system A vehicle is provided with an engine and a motor, which has driving and electric generating functions and which is directly connected to the engine as a vehicle propulsion system, an engine controller for controlling the operating condition of the engine,... | 03/26/2002 |
| 5796224 | Control system for electric vehicle An electronic control unit for controlling an inverter mounted between a main battery and a motor in an electric vehicle includes a feed-back control device which ensures that an actual electric power calculated from an electric current and a voltage inpu... | 08/18/1998 |
| 5461289 | Drive system for a motor vehicle The drive arrangement for a motor vehicle includes an internal combustion engine (1) with at least one controlling element (29), an electric generator arrangement (3) driven by the internal combustion engine (1), at least one electric motor (11) which is ... | 10/24/1995 |
| 5323095 | Propulsion and electric braking system for electric traction motor vehicle A system and method for controlling power transfer between an internal combustion driven electrical power generator and a direct current (DC) motor. In one form, the invention includes control of a power inverter in a manner to restrict current through a ... | 06/21/1994 |
| 4442385 | Variable frequency drive for a motor-generator/alternator set A variable frequency drive for a motor-generator/alternator set which is used to supply electrical power to computer or data processing equipment. Power failures in commercially supplied power results in aberrations and erroneous computations in computers... | 04/10/1984 |
