Patent application number | Description | Published |
20100187031 | MODULAR AUXILIARY POWER UNIT ASSEMBLY FOR AN ELECTRIC VEHICLE - A system and method for a propulsion system includes an electric motor and an energy storage unit configured to supply a primary power to the electric motor. The propulsion system also includes a plurality of auxiliary power units (APUs) configured to supply a secondary power to at least one of the electric motor and the energy storage unit. Each of the plurality of APUs includes a free-piston engine configured to generate a mechanical output, a linear generator configured to transform the mechanical output to an electrical power, and a controller. The controller receives a power command from the electric motor and/or the energy storage unit, determines an amount of secondary power needed to meet the power command, and selectively activates a number of the plurality of APUs to generate the needed amount of secondary power. | 07-29-2010 |
20100206957 | SYSTEM AND METHOD FOR VEHICLE TEMPERATURE CONTROL - A vehicle includes a power connector configured to mate with an electrical power grid receptacle and receive a grid power therefrom and a heating and cooling system electrically connected to the power connector to receive grid power therefrom and configured to modify a temperature the vehicle cabin. The vehicle also includes a temperature control loop configured to selectively activate and control the heating and cooling system and a controller configured to receive a first input signal comprising a desired vehicle activation time and a second input signal comprising a starting vehicle cabin temperature and a desired vehicle cabin temperature. The controller determines a temperature control loop activation time based on the first and second input signals that is prior to the desired vehicle activation time and transmits an activation signal to the temperature control loop at the temperature control loop activation time to activate the heating and cooling system. | 08-19-2010 |
20110121931 | ELECTRICAL ASSEMBLY FOR USE WITH A ROTARY TRANSFORMER AND METHOD FOR MAKING THE SAME - An electrical assembly is provided. The electrical assembly includes a ring having at least two annular segments. Each annular segment includes a first portion and a second portion. The second portion tapers from the first portion toward an end of the second portion to define a circumferential cross-sectional area of the ring that is substantially constant along a radius of the electrical assembly. At least one winding is coupled about the ring. | 05-26-2011 |
20110221555 | ELECTRICAL ASSEMBLY AND METHOD FOR MAKING THE SAME - An electrical assembly for use with a rotary transformer is provided. The electrical assembly includes a assembly structure having a first flange positioned proximate a first end portion of the assembly structure and a second flange positioned proximate a second end portion of the assembly structure. The electrical assembly further includes at least one lamella coupled to the assembly structure. The at least one lamella extends from the first flange to the second flange. | 09-15-2011 |
20110285132 | VARIABLE SPEED MACHINE ASSEMBLY AND METHOD FOR MAKING THE SAME - A variable speed machine assembly includes an input shaft, a variable speed magnetically geared generator coupled to the input shaft, an electrical machine coupled to the input shaft, and a power converter coupled to the variable speed magnetically geared generator and the electrical machine. The power converter is configured to use electrical power output by the electrical machine to control a frequency of power output by the variable speed magnetically geared generator. | 11-24-2011 |
20130158765 | MODULAR AUXILIARY POWER UNIT ASSEMBLY FOR AN ELECTRIC VEHICLE - A system and method for a propulsion system includes an electric motor and an energy storage unit configured to supply a primary power to the electric motor. The propulsion system also includes a plurality of auxiliary power units (APUs) configured to supply a secondary power to at least one of the electric motor and the energy storage unit. Each of the plurality of APUs includes a free-piston engine configured to generate a mechanical output, a linear generator configured to transform the mechanical output to an electrical power, and a controller. The controller receives a power command from the electric motor and/or the energy storage unit, determines an amount of secondary power needed to meet the power command, and selectively activates a number of the plurality of APUs to generate the needed amount of secondary power. | 06-20-2013 |
Patent application number | Description | Published |
20090169380 | MAGNETOSTRICTIVE MEASUREMENT OF TENSILE STRESS IN FOUNDATIONS - A foundation for supporting a structure is provided. The foundation includes a foundation body, at least one anchor bolt connecting a lower anchor plate and the structure, a magnetostrictive load measuring sensor for measuring loads on the at least one anchor bolt, the magnetostrictive load measuring sensor being positioned within the foundation body. | 07-02-2009 |
20110006865 | IN-SITU MAGNETIZER - A magnetizer including at least one reconfigurable magnetic flux guide coil is disclosed. A method of magnetizing a permanent magnet in-situ a mechanical member is also disclosed. | 01-13-2011 |
20110150497 | CONTACTLESS INFRARED DATA TRANSMISSION FOR WIND TURBINES - An apparatus for enabling transmission of signals and data via means of infrared (IR) light for a wind turbine includes a plurality of IR data communication elements configured to provide unidirectional and bidirectional IR data exchange between non-rotating portions of the wind turbine and the rotatable wind turbine hub. | 06-23-2011 |
20130099503 | LAMINATION STACK FOR AN ELECTRICAL MACHINE STATOR - An electrical machine stator is disclosed that includes a stack of laminations configured to be assembled together so as to define at least one stator tooth. Each lamination may include an inner edge, an outer edge and first and second side edges extending at least partially between the inner and outer edges so as to define at least a portion of the at least one tooth. Additionally, each lamination may define a nesting feature between the first and second side edges, wherein the nesting feature of each lamination is engaged against the nesting feature of an adjacent lamination when the stack of laminations is assembled together. | 04-25-2013 |
20130207391 | VARIABLE SPEED ELECTRIC MACHINE AND METHOD FOR GENERATING ELECTRIC ENERGY - A variable speed electric machine and a method for generating electric energy is provided. The electric machine includes an outer stator with a first set of field windings. Further, the electric machine includes a modulator outer rotor that is concentric and is located proximate to the outer stator. The modulator outer rotor is operatively coupled to an input shaft. Furthermore the electric machine includes a permanent magnet inner rotor concentric to the modulator outer rotor. The electric machine also includes an inner stator with a second set of field windings. The inner stator is concentric to the inner rotor and is operatively coupled to an electric grid. The outer stator, the modulator outer rotor, inner stator and the inner rotor are magnetically coupled with each other so as to maintain a constant electric frequency at the inner stator. | 08-15-2013 |
20140001756 | ELECTROMAGNETIC BRAKING SYSTEMS AND METHODS | 01-02-2014 |