| 摘要 |
A residual range system for a motor vehicle having an electric drive motor and an energy storage device 3 has a processor that calculates a residual range rate of change (ROC) that is output for display. The processor may also calculate a residual range RV indicating a distance that the vehicle can travel based on the available energy in the energy storage device. The processor can calculate a state of charge (SOC) of an energy storage device and its rate of change, which is output to a display. The rate of change indication of the residual range may be calculated over a time interval and classified according to a threshold determined from a look-up table. The residual range and its rate of change may be calculated from the state of charge of the storage device and based upon vehicle parameters such as acceleration, deceleration, speed and electrical system status. The residual range rate of change may be displayed as a graphical element that can represent variations by its length, width, size, shape, colour, orientation and profile and by a marker travelling along a residual range scale whose position indicates an increase or decrease in remaining range. |
