| This thesis investigates the performance of electric vehicles batteries by using real driving test data. The three cars which were equipped with three different types of batteries, Hawker lead-acid, Saft Nickel-Cadmium and Sonnenschein lead-acid, were tested by Devision of Energy Resources (DOER). These three cars were driven as typical commutes for two years by different users. The data which were recorded by the on-board data acquisition system were uploaded to the National Data Center Site in Hawaii.; This study summarized the driving behaviors of these three cars. First, the energy consumption per mile (KWh/Mi) as a function of the temperature, the speed, the state of charge, and the driving trip distance were investigated. Second, the discharge current rate of the batteries as a function of speed for different temperatures was also investigated. Third, the investigation of the regenerative braking current, the power, and the energy was expressed in term of the driving speed and the driving trip. The data were analyzed by using the statistical software, SPSS, which can generate the regression line and the relational equation.; To see an effect of the temperature on the car range at the standard speed of 45 mph, the driving simulation at many different temperatures was done by using the data acquisition system in the laboratory. |
