Patent application number | Description | Published |
20100188135 | LOAD BALANCING OF PARALLEL CONNECTED INVERTER MODULES - A method and an arrangement are disclosed for balancing load between parallel connected inverter modules, which inverter modules are arranged to supply a common load. The method can include providing similar switching instructions for parallel connected inverter modules, determining on the basis of phase currents of each parallel inverter module a first time period for each output phase of each inverter module for correcting current imbalance by advancing or delaying turn-on or turn-off time instants of switch components of the inverter modules, and advancing or delaying the turn-on or turn-off time instants of the switching instructions based on the first time period. The method also can include determining temperatures of each output phase of each inverter module, modifying the switching instructions for one or more of the parallel inverter modules for controlling the temperatures of the output phases, and controlling the inverter modules with a switching instruction in which the turn-on or turn-off times have been advanced or delayed in respect of one or more parallel modules and further modified in respect of one or more inverter modules. | 07-29-2010 |
20110254493 | METHOD AND ARRANGEMENT IN CONNECTION WITH ELECTRIC DEVICE SYSTEM - A method and arrangement in connection with an electric drive system are provided. The electric drive system includes an intermediate circuit with two or more supply units and two or more inverter units connected thereto, and an electric machine having two or more three-phase windings galvanically separated from each other. Two or more inverter units are connected to the three-phase windings. The arrangement also includes first main circuit switches to galvanically separate each supply unit from a supply, second main circuit switches to galvanically separate each supply unit from the intermediate circuit, first intermediate circuit switches to galvanically separate each inverter unit from the intermediate circuit, and second intermediate circuit switches to galvanically separate each inverter unit from the electric machine. | 10-20-2011 |
20110276279 | FAULT DIAGNOSTICS ARRANGEMENT FOR ELECTRIC DRIVE SYSTEM, AND ELECTRIC DRIVE SYSTEM - An exemplary electric drive system has a plural number of electric drive subsystems. Each subsystem having a fault diagnostics arrangement, where the arrangement includes a respective control board for each subsystem. Event data of each subsystem is recorded on the respective control board, and one of the respective control boards of the electric drive system is a main control board of the electric drive system. Event data of a subsystem is transferred from the respective control board to the main control board through a data transfer medium. | 11-10-2011 |
Patent application number | Description | Published |
20090125387 | Electronic Commerce System, Method and Apparatus - An electronic commerce method that includes publishing an offer for a product or service, receiving the published offer and conditionally accepting the offer, and forwarding the conditional acceptance to a matching processor to request the product or service. The matching processor receives the conditional acceptance by the matching processor, determines whether conditions present in the conditional acceptance can be fulfilled, and forwards at least one option for acceptance. The at least one option for selection is displayed and the user, selects any one of the at least one options. Upon selection, a token is provided to the user. The token is configured to be used to redeem the service or product, be transferable to another user device, or to be stored for future redemption of the product or service. | 05-14-2009 |
20100063892 | Distributed electronic commerce system, method and apparatus - A method for constructing electronic commerce services and conducting electronic commerce transactions is disclosed. The method is illustrated by instantiating and storing the electronic contract on a server; issuing and transmitting a token message to one or more contracting party's client device. Using a processor to intercept the token message and contact the server to retrieve the electronic contract associated with the token message; and downloading or uploading digital media as instructed by the electronic contract. The method is based on the uniform, highly expressive representation of electronic contracts as digital objects. A system based on a distributed object architecture that implements the method is also described. The architecture enables the execution of the promises encoded as part of an electronic contract to be executed on any device that implements an electronic contract interpreter mechanism. | 03-11-2010 |
20140025573 | Distributed Electronic Commerce System, Method and Apparatus - A method for constructing electronic commerce services and conducting electronic commerce transactions is disclosed. The method is illustrated by instantiating and storing the electronic contract on a server; issuing and transmitting a token message to one or more contracting party's client device. Using a processor to intercept the token message and contact the server to retrieve the electronic contract associated with the token message; and downloading or uploading digital media as instructed by the electronic contract. The method is based on the uniform, highly expressive representation of electronic contracts as digital objects. A system based on a distributed object architecture that implements the method is also described. The architecture enables the execution of the promises encoded as part of an electronic contract to be executed on any device that implements an electronic contract interpreter mechanism. | 01-23-2014 |
20140052809 | Token Based Applications Platform Method, System and Apparatus - A method that enables the mapping of token identity and token presentation context to invoke one or more applications that are associated with the given token and context is disclosed. The method enables the construction of a flexible and efficient token-in-context services platform. | 02-20-2014 |