Patent application number | Description | Published |
20090315519 | CONTROL DEVICE FOR A SECONDARY BATTERY AND VEHICLE - A control device for a secondary battery includes an offset addition unit ( | 12-24-2009 |
20100010707 | CONTROL DEVICE FOR POWER STORAGE DEVICE AND VEHICLE - An SOC calculating unit calculates a first value based on an open voltage of a battery upon startup of a vehicle (when the operation of the battery starts), and has a calculated second value stored in a storage unit upon stop of the vehicle (when the operation of the battery ends). An initial value selecting unit selects the first value as an initial value when a predetermined condition is satisfied, and selects the second value as the initial value when this condition is not satisfied. In a case where the first value has low reliability, the second value is set as the initial value even if the second value may be deviated from an actual SOC value. This can reduce a difference between the SOC value stored in advance and the actual SOC value as compared with that in a case where the first value is set as the initial value. | 01-14-2010 |
20100019569 | POWER SUPPLY SYSTEM, VEHICLE WITH THE POWER SUPPLY SYSTEM AND POWER SUPPLY SYSTEM CONTROL METHOD - When a vehicle is set to a travel control mode or external charging mode, a vehicle system is activated for executing the control mode to which the vehicle is set. A converter ECU selects one sub power storage unit to be used first after activation of the vehicle system, based on a power storage unit used after preceding activation as read from a memory unit contained in the converter ECU and based on respective states of charge of sub power storage units, and electrically connects the selected sub power storage unit and a converter via a switch circuit. When the vehicle system is activated for executing the travel control mode, the converter ECU updates information about the power storage unit used after preceding activation as stored in the memory unit, to information about the power storage unit used first after the present activation of the vehicle system. When the vehicle system has been activated for executing the external charging mode, the converter ECU maintains the information about power storage used after the preceding activation as stored in the memory. | 01-28-2010 |
20100019729 | POWER SUPPLY SYSTEM AND VEHICLE WITH THE SYSTEM - A vehicle includes a charging unit receiving electric power from an external power source and externally charging a power storage unit. When a connector unit is coupled to the vehicle and a state ready for charging by the external power source is attained, a controller predicts degradation ratio of the power storage unit at the time point of completion of external charging based on degradation characteristic of the power storage unit in connection with SOC and battery temperature obtained in advance, and sets target state of charge of each power storage unit based on the battery temperatures so that the predicted degradation ratio does not exceed tolerable degradation ratio at the time point of completion of external charging. Then, the controller controls corresponding converters such that SOCs of power storage units attain the target states of charge. | 01-28-2010 |
20110127958 | BATTERY CHARGE/DISCHARGE CONTROL DEVICE AND HYBRID VEHICLE USING THE SAME - A battery charge/discharge control device ( | 06-02-2011 |
20120065827 | POWER SUPPLY SYSTEM FOR ELECTRIC POWERED VEHICLE AND CONTROL METHOD THEREOF - A power supply system for a hybrid vehicle includes a main power storage device and a plurality of sub power storage devices used selectively. When an SOC of one of the plurality of sub power storage devices decreases to a predetermined value or smaller, an ECU selects this sub power storage device as a sub power storage device to be charged. The ECU controls a connecting unit such that the sub power storage device to be charged is connected to a second converter. Furthermore, the ECU selects the HV mode as the travel mode. In the HV mode, electrical energy stored in an electric powered vehicle is maintained because of electric power generation by an engine. | 03-15-2012 |
20120268066 | CHARGE CONTROL DEVICE FOR VEHICLE AND ELECTRIC POWERED VEHICLE PROVIDED WITH SAME - A monitoring unit outputs a first current detection value having a relatively wide measurement range and a relatively short detection cycle and a second current detection value having a relatively high resolution, to a charging ECU. When charging power calculated using the first current detection value exceeds a predetermined limit value, the charging ECU controls a charger to reduce charging power (protection control). Further, the charging ECU controls the charger such that a power storage device attains a predetermined fully charged state based on charging power calculated using the second current detection value (full charge control). | 10-25-2012 |
20130090797 | VEHICULAR CONTROL DEVICE AND METHOD - An ECU executes a program including the steps of: performing shipping electric charging control when an electric charging plug is connected and a condition is also established for performing the shipping electric charging control; and if the condition for performing the shipping electric charging control is not established, performing full electric charging control. | 04-11-2013 |
20130096760 | VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD - ECU executes a program including a step of executing first charging control when a charging plug and a charging device are connected, a step of terminating the first charging control when CCV is more than or equal to a threshold value OCV, a step of executing second charging control, and a step of terminating the second charging control when charging is completed. | 04-18-2013 |
20130096763 | VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD - An ECU executes a program including the steps of determining a first value as a detection error when such specific conditions that a most recent IG OFF time period is equal to or longer than a predetermined time period, that motor running has continued since start of running, that a time period of running is equal to or shorter than a predetermined time period, that a square value of a current during running is equal to or smaller than a predetermined value, that a temperature at the time of start of running is within a predetermined range, and that a temperature of an atmosphere is within a predetermined range are satisfied, determining a second value as a detection error when the specific conditions are not satisfied, estimating SOC by using the determined detection error, and controlling drive based on the estimated SOC. | 04-18-2013 |