Patent application number | Description | Published |
20130127247 | BATTERY MANAGEMENT APPARATUS FOR AN ELECTRIC VEHICLE, AND METHOD FOR MANAGING SAME - The present invention relates to an electric vehicle, and to a method for managing the charging of an auxiliary battery for an electric vehicle. The electric vehicle according to the present invention comprises: a high voltage battery for driving the electric vehicle; an auxiliary battery for supplying a plurality of electronic loads with driving power; a converter converting the voltage of the high voltage battery to a voltage required by the electronic loads via PWM switching; and a current detection unit for detecting the output current of the converter wherein the converter includes a converter control unit for reducing the output voltage of the converter when the energy required by the loads, based on the current detected by the current detection unit, is greater than the rated capacity of the converter. Accordingly, energy supplied to the loads can be handled by the converter and the auxiliary battery so as to enable the safe operation of an electric vehicle system. | 05-23-2013 |
20130127400 | ELECTRIC VEHICLE AND CHARGING CONTROL METHOD FOR AUXILIARY BATTERY THEREOF - The present invention relates to an electric vehicle and a charging control method for an auxiliary battery of the electric vehicle. According to the present invention, the electric vehicle comprises: a high-voltage battery which drives the electric vehicle; a plurality of electric field loads; the auxiliary battery which supplies driving power to the plurality of electric field loads; a first voltage detection unit which detects an output voltage of an auxiliary battery side; a converter which performs a PWM switching to convert the voltage of the high-voltage battery into a voltage required in the electric field loads; a plurality of relays; a power relay assembly (PRA) which is switched to supply the energy of the high-voltage battery to the converter according to whether or not the plurality of relays are in operation; and a vehicle control module (VCM) which controls the driving of the power relay assembly, wherein the converter includes a converter control unit, which sends a driving instruction signal requesting the vehicle control module to drive the power relay assembly depending on a magnitude change of the output voltage of the auxiliary battery side. Accordingly, discharging of the auxiliary battery in a starting-off state is prevented, which makes it possible to stably operate the electric vehicle system. | 05-23-2013 |
20130127418 | ELECTRIC VEHICLE AND CHARGING CONTROL METHOD FOR BATTERY THEREOF - The present invention relates to an electric vehicle and a charging control method for a battery thereof. An electric vehicle having a high-voltage battery which supplies driving power to a plurality of electric field loads comprises: a charger which is connected with an external power source to charge the high-voltage battery; a vehicle control module (VCM) which controls connection between the charger and the high-voltage battery; a battery management system (BMS) manages the state of the high-voltage battery according to the charging of the high-voltage battery or the supply of operating power from the high-voltage battery; and a voltage detection unit which detects and reports the charged state of the high-voltage battery to the battery management system, wherein the charger comprises a charger control unit, which controls to perform a power saving mode to minimize power consumption by interrupting the transmission of a driving signal for driving of the vehicle control module and battery management system when the charging of the high-voltage battery has been completed. Accordingly, even though the electric vehicle is left as it is after having been fully charged, the high-voltage is automatically charged, which makes it possible to stably operate the electric vehicle system. | 05-23-2013 |
Patent application number | Description | Published |
20150307998 | MULTILAYER THIN FILM FOR CUTTING TOOL AND CUTTING TOOL INCLUDING THE SAME - Provided is a multilayer thin film for a cutting tool, in which micro-scale thin films having a thickness of a few nanometers to tens of nanometers are alternately stacked, having less quality variations and being capable of realizing excellent wear resistance. The multilayer thin film according to the present disclosure is a multilayer thin film for a cutting tool, in which unit thin films which are respectively formed of thin layers A, B, C, and D are stacked more than once, wherein elastic moduluses k of the thin layers satisfy relationships of k | 10-29-2015 |
20150337459 | MULTILAYER THIN FILM FOR CUTTING TOOL AND CUTTING TOOL INCLUDING THE SAME - Provided is a multilayer thin film for a cutting tool, in which unit thin films each of which is formed of a total of four thin layers are stacked more than once, the multilayer thin film being capable of realizing improved physical properties compared with conventional one by adjusting an elastic period and a lattice period between the four thin layers. The multilayer thin film for a cutting tool according to the present disclosure is a multilayer thin film for a cutting tool, in which unit thin films each of which is sequentially stacked with thin layers A, B, C, and D are stacked more than once, wherein elastic modulus k between the thin layers satisfies relationships of k | 11-26-2015 |
Patent application number | Description | Published |
20140219906 | GRAPHENE-NANO PARTICLE COMPOSITE HAVING NANO PARTICLES CRYSTALLIZED THEREIN AT A HIGH DENSITY - The present invention relates to a graphene-nanoparticle composite having a structure in which nanoparticles are crystallized in a carbon-based material, for example, graphene, at a high density, and, more particularly, to a graphene-nanoparticle composite capable of remarkably improving physical properties such as contact characteristics between basal planes of graphene and conductivity, wherein nanoparticles are included as a large amount of 30% by weight or more, based on 100% by weight of graphene, and crystallized nanoparticles have an average particle diameter of 200 nm or more, and a method of preparing the same. | 08-07-2014 |
20150179294 | GRAPHENE-NANO PARTICLE COMPOSITE HAVING NANOPARTICLES CRYSTALLIZED THEREIN AT A HIGH DENSITY - The present invention relates to a graphene-nanoparticle composite having a structure in which nanoparticles are crystallized at a high density in a carbon-based material, for example, graphene, and, more particularly, to a graphene-nanoparticle composite capable of remarkably improving physical properties such as contact characteristics between basal planes of graphene and conductivity since nanoparticles are included as a large amount of 20 to 50% by weight, based on 100% by weight of graphene, and a method of preparing the same. | 06-25-2015 |
Patent application number | Description | Published |
20080234462 | Preparation Method of Polyamide Thin Film Composite Reverse Osmosis Membrane and Polyamide Thin Film Composite Reverse Osmosis Membrane Prepared Therefrom - A preparation method of a polyamide thin film composite reverse osmosis membrane and a polyamide thin film composite reverse osmosis membrane prepared using the preparation method are provided. The preparation method of a polyamide thin film composite reverse osmosis membrane using interfacial polymerization of an amine aqueous solution and amine-reactive compound includes the steps of (a) forming an active layer through interfacial polymerization by contacting a surface of a porous support with an amine aqueous solution containing a polyfunctional aromatic amine monomer and an organic solution containing polyfunctional acyl halide monomer as an amine-reactive compound, and (b) performing post-treatment preceded by the forming of the active layer by contacting the active layer with an aqueous solution containing 0.1 to 100 wt % of polyfunctional tertiary alcohol amine. The polyamide thin film composite reverse osmosis membrane prepared by using the polyfunctional tertiary alcohol amine as a post-treatment compound has improved water permeability and salt rejection compared to a case of using various post-treatment agents or methods. | 09-25-2008 |
20080237118 | Polyamide Reverse Osmosis Composite Membrane and Preparation Method Thereof - An amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane is prepared, which consists of 0.1 through 20 weight % of polyfunctional aromatic amine monomer, 0.1 through 20 weight % of multi-functional tertiary alcohol amine, 0.1 through 20 weight % of strong acid, and 40 through 99.7 weight % of water. | 10-02-2008 |
20100181250 | AMINE AQUEOUS SOLUTION FOR FORMING AN ACTIVE LAYER OF POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE, POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE PREPARED THEREBY, AND PREPARATION METHOD THEREOF - Disclosed are an amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane and a preparation method of the polyamide reverse osmosis composite membrane using the same. The amine aqueous solution comprises 0.1 to 20 wt % of a polyfunctional amine compound, 0.1 to 20 wt % of an alcohol amine compound, 0.1 to 20 wt % of a tertiary amine compound, and 40 to 99.7 wt % of water. Due to using an amine aqueous solution having an alcohol amine and a tertiary amine compound, the polyamide reverse osmosis composite membrane has high water permeability and enhanced salt rejection rate, and thus is useful for the membrane field. | 07-22-2010 |
20100279442 | SEMICONDUCTOR PROCESS EVALUATION METHODS INCLUDING VARIABLE ION IMPLANTING CONDITIONS - Semiconductor process evaluation methods perform multiple scans of a test semiconductor substrate (e.g., test wafer) using ion beams under different ion implanting conditions. Parameters of the test semiconductor substrate that was scanned using the ion beams under different ion implanting conditions are then measured to conduct the semiconductor process evaluation. | 11-04-2010 |
20110062076 | SPIRAL WOUND TYPE FILTER CARTRIDGE - Disclosed herein is a spiral wound type filter cartridge and more specifically, a spiral wound type filter cartridge in which activated carbon fiber is provided. The inside of spiral wound type filter cartridge is capable of serving as a carbon filter in a water purifier, thus eliminating the necessity of the use of any carbon filter for pre- or post-treatment in the process of purifying raw water, reducing an overall size of the water purifier and considerably reducing costs associated therewith. | 03-17-2011 |
20120003387 | AMINE AQUEOUS SOLUTION FOR FORMING AN ACTIVE LAYER OF POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE, POLYAMIDE REVERSE OSMOSIS COMPOSITE MEMBRANE PREPARED THEREBY, AND PREPARATION METHOD THEREOF - Disclosed are an amine aqueous solution for forming an active layer of a polyamide reverse osmosis composite membrane and a preparation method of the polyamide reverse osmosis composite membrane using the same. The amine aqueous solution comprises 0.1 to 20 wt % of a polyfunctional amine compound, 0.1 to 20 wt % of an alcohol amine compound, 0.1 to 20 wt % of a tertiary amine compound, and 40 to 99.7 wt % of water. Due to using an amine aqueous solution having an alcohol amine and a tertiary amine compound, the polyamide reverse osmosis composite membrane has high water permeability and enhanced salt rejection rate, and thus is useful for the membrane field. | 01-05-2012 |
20130299410 | SPIRAL WOUND TYPE FILTER CARTRIDGE - Disclosed herein is a spiral wound type filter cartridge and more specifically, a spiral wound type filter cartridge in which activated carbon fiber is provided. The inside of spiral wound type filter cartridge is capable of serving as a carbon filter in a water purifier, thus eliminating the necessity of the use of any carbon filter for pre- or post-treatment in the process of purifying raw water, reducing an overall size of the water purifier and considerably reducing costs associated therewith. | 11-14-2013 |