Energy Management Device and Method for a Vehicle

摘要

An energy management device includes an energy transfer unit, and a control unit that generates a control signal based at least on a residual electric quantity of each of high power and high energy storage devices of a vehicle, whether the energy transfer unit is coupled to an external energy source, and a position of the vehicle. The energy transfer unit performs, based on the control signal, energy transfer among the external energy source, the high power and high energy storage devices, and at least one energy load of the vehicle.

主权项

1. An energy management device adapted to be installed in a vehicle that includes a high power storage device, a high energy storage device and at least one energy load, the high power storage device having a power density higher than that of the high energy storage device, the high energy storage device having an energy density higher than that of the high power storage device, said energy management device comprising:
an energy transfer unit adapted to be coupled to the high power storage device, the high energy storage device and the energy load, said energy transfer unit being configured to be coupled to an external energy source when the vehicle is located within a predetermined charging area relative to the external energy source; and a control unit coupled to said energy transfer unit, and generating a control signal that is provided to said energy transfer unit based at least on a residual electric quantity of the high power storage device, a residual electric quantity of the high energy storage device, whether said energy transfer unit is coupled to the external energy source, and a position of the vehicle, such that said energy transfer unit performs, based on the control signal, energy transfer among the external energy source, the high power storage device, the high energy storage device and the energy load; wherein, when said control unit determines that said energy transfer unit is coupled to the external energy source and that the vehicle is departing from the external energy source, said control unit generates, depending on the position of the vehicle, the control signal that corresponds to an energy transfer to the energy load from only the external energy source, or from both the external energy source and the high power storage device; and wherein, when said control unit determines that said energy transfer unit is not coupled to the external energy source, that the residual electric quantity of the high energy storage device is greater than a predetermined first lower limit value, and that the residual electric quantity of the high power storage device is greater than a predetermined second lower limit value, said control unit generates, depending on the residual electric quantity of the high power storage device, the control signal that corresponds to an energy transfer to the energy load from only the high power storage device, or from both the high power storage device and the high energy storage device.