| Patent application number | Description | Published |
|---|
| 20090091299 | DYNAMICALLY ADAPTIVE METHOD FOR DETERMINING THE STATE OF CHARGE OF A BATTERY - A method for determining the state of charge (SOC) of a lithium ion battery is provided. The method leverages a circuit model of the lithium ion battery, and generates four battery parameters from which the SOC is derived. | 04-09-2009 |
| 20090115420 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. A magnetic force between the battery and a magnet is detected. The state of charge of the battery is determined based on the detected magnetic force. | 05-07-2009 |
| 20090140742 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. The battery is subjected to a predetermined magnetic field such that the battery and the predetermined magnetic field jointly create a resultant magnetic field. The resultant magnetic field is sensed. The state of charge of the battery is determined based on the resultant magnetic field. | 06-04-2009 |
| 20090210179 | MODEL-BASED ESTIMATION OF BATTERY HYSTERESIS - A method of battery state of charge estimation considering battery hysteresis includes using a Preisach-model-based algorithm to calculate a battery state of charge. | 08-20-2009 |
| 20090302855 | METHOD AND SYSTEM FOR CHARACTERIZING A BATTERY - Methods and systems are provided for characterizing a battery. A property of the battery is measured. A dynamic characteristic of the battery is determined from a second order linear dynamic model. | 12-10-2009 |
| 20100076704 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components. | 03-25-2010 |
| 20100076705 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY BASED ON A TRANSIENT RESPONSE - Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery. | 03-25-2010 |
| 20100321025 | Method for use With A Vehicle Battery Pack Having A Number of Individual Battery Cells - A system and method for use with a vehicle battery pack having a number of individual battery cells, such as a lithium-ion battery commonly used in hybrid electric vehicles. In one embodiment, the method evaluates individual battery cells within a vehicle battery pack in order to obtain accurate estimates regarding their average transient voltage effect, open circuit voltage (OCV | 12-23-2010 |
| 20110148363 | METHOD FOR USE WITH A VEHICLE BATTERY PACK - A method for use with a vehicle battery pack, where the method determines a voltage threshold that may prevent the vehicle battery pack from being overcharged. The voltage threshold may be a dynamic threshold that changes or adjusts over time in order to accommodate changing conditions in the vehicle battery pack, the vehicle and/or the surrounding environment. The method may consider one or more battery readings when determining the voltage threshold, including temperature, voltage and/or current readings. According to one embodiment, the method is designed to accommodate high-current, short-duration charging events, like regenerative breaking. | 06-23-2011 |
| 20110166811 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. The battery is subjected to a predetermined magnetic field such that the battery and the predetermined magnetic field jointly create a resultant magnetic field. The resultant magnetic field is sensed. The state of charge of the battery is determined based on the resultant magnetic field. | 07-07-2011 |
