Patent ID: 8035345

Claim:
A system for determining an estimated combined battery state-parameter vector indicative of both a state and a parameter of a battery at a first predetermined time, the system comprising: a sensor configured to generate a first signal indicative of an output variable of the battery; and a computer operably coupled to the sensor, the computer configured to determine a first plurality of estimated augmented combined battery state-parameter vectors that are indicative of both a state and a parameter of the battery, a battery input noise, a sensor noise associated with the sensor, an uncertainty of both the state and parameter of the battery, an uncertainty of the battery input noise, and an uncertainty of the sensor noise, at a second predetermined time prior to the first predetermined time, the computer further configured to determine a second plurality of predicted combined battery state-parameter vectors that are indicative of both the state and the parameter of the battery and an uncertainty of both the state and parameter of the battery at the first predetermined time based on the first plurality of estimated augmented combined battery state-parameter vectors, the computer further configured to determine a third plurality of predicted battery output vectors that are indicative of an at least one output variable of the battery and an uncertainty of the output variable at the first predetermined time based on the first plurality of estimated augmented combined battery state-parameter vectors and the second plurality of predicted combined battery state-parameter vectors, the computer further configured to determine a first battery output vector based on the first signal, the computer further configured to determine a first estimated combined battery state-parameter vector indicative of both the state and the parameter of the battery at the first predetermined time based on the second plurality of predicted combined battery state-parameter vectors, the third plurality of predicted battery output vectors, and the first battery output vector.