Hybrid powder sources distribution management
First Claim
1. A hybrid power system including first and second energy inputs, first and second respective energy converters, an energy storage device, an energy sink and a power distribution manager wherein the operation of the power system has an associated overall cost which is a function of operational parameters of the power system, and the power distribution manager controls power distribution using an optimum overall cost level.
2 Assignments
0 Petitions
Accused Products
Abstract
A hybrid power source includes first and second energy inputs such as an electric motor (14) and an internal combustion engine (20). A power source strategy is implemented in which a cost function is constructed associated with various power distribution options to allows improved distribution of power. For a specific cost (z=constant), the total amount of energy is obtained by integrating during a normalised driving cycle the generating power against time. Thereby a look-up table energy/cost is created.
121 Citations
38 Claims
- 1. A hybrid power system including first and second energy inputs, first and second respective energy converters, an energy storage device, an energy sink and a power distribution manager wherein the operation of the power system has an associated overall cost which is a function of operational parameters of the power system, and the power distribution manager controls power distribution using an optimum overall cost level.
-
18. A control system for a hybrid power source having first and second power units of different type, at least one of said units being rechargeable by the other unit, the control system controlling operation and recharging of said rechargeable power unit dependent on more or more control values representative of at least one of fuel consumption, exhaust emission, vibration, noise, harshness, load mechanical durability, system durability or battery durability.
-
27. A method of controlling a hybrid power source having first and second power units of different type, at least one of said units being rechargeable by said other unit, said method comprising the steps of operating said rechargeable power unit when operation will achieve a net benefit against at least one of fuel consumption, exhaust emission, vibration, noise, harshness or load by said hybrid power source and recharging said rechargeable power unit when recharging is achieved up to the cost limit compared to at least one of fuel consumption, exhaust emission, vibration, noise, harshness or load.
-
32. A method of calibrating a control system for a hybrid power source, the control system having a data store and the hybrid power source including first and second power units of different type, at least one of said units being rechargeable by said other unit, in which the power source is powered through a plurality of cycles under varying power source loads, at least one of the control parameters fuel consumption, exhaust emission, vibration, noise, harshness or load are recorded and stored in said data store for each power source load, and a rechargeable unit operating benefit and recharging cost is derived for each power source load as a function of the recorded control parameters and stored in said data store.
-
38. A hybrid power system, control system, vehicle or hybrid power source substantially as herein described and as illustrated in the figures.
Specification