A full car symbol on the display is 50 watt-hours of regenerated power, and a half car is 25 WH. A watt is a volt times an amp. Crudely speaking, the faster your generator is turning (a function of wheel speed and engine speed and whether MG1 or MG2 or both are doing regeneration), the higher the voltage. The harder the deceleration (harder braking/faster slowing) the higher the current (amperage). The longer time you decelerate, the greater fraction of an hour. Multiply the voltage times the current (measured in amps) to get watts, and multiply that times the length of time (measured in hours), and you get watt-hours (WH).
(Less crudely speaking, the electrical controller for MG1/MG2 controls the voltage, which controls the motor power or generator current. When the controller sets the voltage lower than the open circuit voltage of the MG, it generates current and tries to slow down, proportional to the voltage difference. The open circuit voltage of the MG is directly proportional to the speed of the MG.)
Off the top of my head, I believe the TCH drive battery is 236 V total, with each cell rated at around 10 amp-hour, which would be a 2360 watt-hour battery. However, only about half of the total capacity is actually used to ensure very long life for the battery. That means about 23 of those car symbols on the consumption display would represent a complete recharge of the drive battery (23 cars X 50 WH = 1150 WH, which is about half the total battery capacity). 本帖最后由 jscyl1980 于 23-1-2014 10:34 AM 编辑