| Patent application number | Description | Published |
|---|
| 20100052621 | POWER SYSTEM AND SET BATTERY CHARGING METHOD - This invention relates to a power system comprising secondary batteries and a method of charging a set battery, and more specifically relates to technology which prevents degradation of a set battery which is a power source, even when using a simple constant-voltage charger. An object of this invention is to provide a power system and a charging method which, when using a constant voltage to charge secondary batteries having a higher energy density per unit weight than lead storage batteries, can reduce concerns of deformation of the secondary batteries due to overcharging, and improve safety. According to this invention, in a power system including a set battery in which a plurality of cells are connected in series, and a constant-voltage charger which applies a constant rated charging voltage V | 03-04-2010 |
| 20100253284 | POWER SUPPLY SYSTEM AND CONTROL METHOD OF ASSEMBLED BATTERY - A power supply system comprises: an assembled battery in which a plurality of cells are connected in series and which supplies power from a series circuit of the cells to a device; a power generator that parallely supplies generated power to the assembled battery and the device connected in parallel; a plurality of forced discharge units that cause the plurality of cells to forcibly discharge individually; a cell state detector that detects a state of each cell; and a controller which, when the cell state detector detects that at least one of the plurality of cells is in a first state showing that the cell is not fully charged, causes the cell detected to be in the first state to discharge by means of the forced discharge units until the cell state detector detects that the cell enters a second state having a lower state of charge than the first state. | 10-07-2010 |
| 20100304206 | BATTERY PACK, AND BATTERY SYSTEM - There are provided at least one aqueous secondary battery and at least one nonaqueous secondary battery having a smaller capacity than that of the aqueous secondary battery. The aqueous secondary battery and the nonaqueous secondary battery are connected in series to constitute a battery pack. | 12-02-2010 |
| Patent application number | Description | Published |
|---|
| 20090052825 | PRELOAD MEASURING DEVICE FOR DOUBLE ROW ROLLING BEARING UNIT - A preload measuring device for a double row rolling bearing unit includes an outer bearing ring member having double rows of outer ring raceways on an inner circumferential surface, an inner bearing ring member having double rows of inner ring raceways on an outer circumferential surface, rolling elements rollably arranged between the outer ring raceways and the inner ring raceways in each of the rows such that contact angles given to the respective rows are opposite to one another, axial displacement measuring means for obtaining an axial relative displacement between the outer bearing ring member and the inner bearing ring member, inclination angle measuring means for obtaining an inclination angle between center axes of the outer bearing ring member and the inner bearing ring member, and preload calculating means for obtaining a preload applied to the rolling elements based on the inclination angle and the axial relative displacement. | 02-26-2009 |
| 20100194342 | POWER SUPPLY SYSTEM AND CELL ASSEMBLY CONTROL METHOD - The power supply system of this invention includes a cell assembly in which a first assembled battery, formed from a plurality of first cells connected in series, and a second assembled battery, formed from a plurality of second cells connected in series, are connected in parallel, and a generator. An average charging voltage V | 08-05-2010 |
| 20100201318 | POWER SUPPLY SYSTEM AND CELL ASSEMBLY CONTROL METHOD - The power supply system of the present invention includes: a cell assembly in which a first assembled battery, formed from a plurality of first cells connected in series, and a second assembled battery, formed from a plurality of second cells connected in series, are connected in parallel; and a generator for charging the cell assembly. The cell assembly is configured such that an average charging voltage V | 08-12-2010 |
| 20100207577 | ASSEMBLED BATTERY AND BATTERY SYSTEM - An assembled battery according to the present invention has an aqueous secondary battery and non-aqueous secondary batteries having an individual battery capacity smaller than that of the aqueous secondary battery. The non-aqueous secondary batteries and the aqueous secondary battery are connected in series such that the polarities thereof are reversed, and charging and discharging are carried out based on the polarities of the non-aqueous secondary batteries. | 08-19-2010 |
| 20100225276 | POWER SUPPLY SYSTEM - The power supply system of this invention includes a cell assembly in which a first assembled battery, made up of a plurality of first cells connected in series, and a second assembled battery, made up of a plurality of second cells connected in series, are connected in parallel, and a generator that charges the cell assembly. The cell assembly is configured such that an average charging voltage V | 09-09-2010 |
| 20100283427 | POWER SUPPLY SYSTEM - A power supply system has at least one forced discharge section, which includes at least one aqueous solution secondary battery and at least one nonaqueous solution secondary battery having a smaller unit battery capacity as compared with the aqueous solution secondary battery and makes each nonaqueous secondary battery forcibly discharge electricity. The power supply system also has a control section, which measures the voltage of the nonaqueous solution secondary battery individually and makes each nonaqueous solution secondary battery forcibly discharge electricity by using the forced discharge section until the forced discharge end voltage is reached when the voltage of the nonaqueous solution secondary battery reaches a forced discharge start voltage Va. | 11-11-2010 |
| 20110152138 | ROLLING BEARING AND MANUFACTURING METHOD THEREOF - To provide a rolling bearing which is superior in preventing electrolytic corrosion, suitable for use in applications where torque reduction of the bearing is required by reducing an amount of lubricant used or by using a lubricant having a low viscosity, and has superior acoustic characteristics and durability, a rolling element according to the present invention is made of an alumina-zirconia composite material including an alumina component and either a zirconia component or a yttria-zirconia component containing 1.5 to 5 mol % of yttria, a mass ratio of the alumina component to the zirconia component or the yttria-zirconia component being 5:95 to 50:50. | 06-23-2011 |
