Research and development of model-based battery state of charge indicator
- Resource Type
- Conference
- Authors
- Torikai, T.; Takesue, T.; Toyota, Y.; Nakano, K.
- Source
- Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on. :996-1001 vol.2 1992
- Subject
- Power, Energy and Industry Applications
Computing and Processing
Robotics and Control Systems
Components, Circuits, Devices and Systems
Research and development
Voltage
Battery charge measurement
Electric vehicles
Mathematical model
Testing
State estimation
Table lookup
Current measurement
Digital signal processors
- Language
A novel approach to developing a battery state of charge indicator for an electric vehicle is discussed. An approach to determining the state of charge by combing the available data of discharge characteristics of a lead-acid battery with an identification technique based on the battery mathematical model is presented. The basis for the approach is to introduce a nonlinear battery mathematical model, and to estimate the battery state of charge by least squares estimation. This approach was realized by a digital signal processor and its validity was confirmed by simulation tests using data measured during urban driving and road tests.ETX