| 摘要 |
The present invention provides a novel system and method for a power management strategy for series hybrid power systems, such as for vehicles, with limited electrical energy storage capacity that distributes instantaneous power between a source of chemical energy and a small energy storage system (ESS) efficiently. The invention provides for minimizing the energy storage system while simultaneously allowing the chemical to electrical energy converter, e.g., an internal combustion motor/engine paired with an electrical generator and/or a fuel cell power source, to operate in pre-defined efficient regions of the power user's, or vehicle's, fuel efficiency map. |
| 主权项 |
1. A system for controlling a hybrid energy and power delivery system to optimize fuel economy and manage the consumption of stored and generated energy during a power delivery cycle, the system comprising:
at least one motor/engine, at least one generator, at least one DC-DC converter, at least one low pass bandwidth filter, and at least one battery that comprise an energy storage system (ESS); at least one bandwidth-based proportional controller for managing in real time the performance of the ESS, duty cycling, motor/engine current, generator current, and low bandwidth battery current; means for adjusting in real time the at least one bandwidth-based proportional controller through at least one proportional control algorithm for optimization of the proportional controller and of the hybrid energy and power delivery system; means for reducing the size, the weight, or both, of the ESS; and at least one state machine controller and at least one state machine controller algorithm, wherein the at least one state machine controller has at least four states and is in parallel with the at least one bandwidth-based proportional controller having its own controller parameters, for managing duty cycling and for determining hybrid energy and power delivery system state transitions when necessary and for changing the state selected from the group of states consisting of idle/off, urban, highway, and rated speed, when the mismatch between the expected value of motor/engine current and the expected value of generator current is statistically significant. |
